KR100628986B1 - Air conditioning system using subsurface water and control method thereof - Google Patents

Abstract

The present invention relates to a cooling and heating system and method using groundwater, and more particularly, to a plurality of heart pumps installed in different boreholes to one heat pump, and to the ground water supplied to the heat pump through the heart pump. The heat pump sequentially drives the cardiac pumps according to temperature, thereby enabling a more efficient and stable cooling and heating system operation.

In the air-conditioning and heating system according to the present invention, in a cooling and heating system using geothermal heat including a supply line for supplying groundwater accumulated in a borehole to a heat exchanger and a return line for reflowing the heat exchanged groundwater into a borehole, the borehole is provided through the supply line. A heart pump for supplying groundwater accumulated in the heat exchanger to the heat exchanger, a heat exchanger for exchanging the ground water supplied through the cardiac pump with the circulating water circulated into the room, and a return line for reflowing the groundwater exchanged from the heat exchanger into the borehole And a heat pump that receives geothermal heat through the heat exchanger and converts it into energy available for cooling and heating, and includes a temperature sensor for sensing the supplied geothermal temperature and a controller for controlling the operation of the heart pump according to the sensed temperature. It includes.

Heart pump, heat exchanger, heat pump, temperature sensor, controller

Description

Air conditioning system and control method using groundwater {AIR CONDITIONING SYSTEM USING SUBSURFACE WATER AND CONTROL METHOD THEREOF}

1 is an exemplary view showing a cooling and heating system using geothermal heat according to an embodiment of the prior art.

Figure 2 is an exemplary view showing a cooling and heating system using geothermal heat according to another embodiment of the prior art.

Figure 3 is an example of an air conditioning and heating system using groundwater according to an embodiment of the present invention.

Figure 4 is an illustration of an air conditioning and heating system using groundwater according to another embodiment of the present invention.

5 is a flow chart showing a cooling and heating method using groundwater according to an embodiment of the present invention.

Figure 6 is a flow chart showing a cooling and heating method using groundwater according to another embodiment of the present invention.

*** Explanation of Major Parts in Drawings ***

100: heart pump 300: heat exchanger

400: return line 500: heat pump

510: temperature sensor 520: controller

600: auxiliary heart pump 700: auxiliary controller

The present invention relates to a cooling and heating system and method using groundwater, and more particularly, to a plurality of heart pumps installed in different boreholes to one heat pump, and to the ground water supplied to the heat pump through the heart pump. The heat pump sequentially drives the cardiac pumps according to temperature, thereby enabling a more efficient and stable cooling and heating system operation.

In general, the geothermal air-conditioning system using a geothermal heat, one geothermal heat exchanger is provided with a supply pipe 10 and a return pipe 20 as shown in Figure 1 below one to one heat exchanger 30 of the heat pump Since it is constructed in response, when the temperature of the groundwater supplied to the heat exchanger 30 is out of an appropriate range or the groundwater in the borehole is insufficient, there is a problem in that the air conditioning system is unstable.

Regarding a system and a method capable of solving the above problem, Korean Patent No.0506488 (Registration Date: July 28, 2005, Title of the Invention: Heat Pump System Using Geothermal Heat and its Control Device) has been provided.

The Patent No. 05628888 uses a refrigerant to transfer a high temperature heat source to a low temperature, or a plurality of heat pumps to transfer a low temperature heat source to a high temperature, a geothermal heat exchanger for absorbing or releasing heat to the ground, the heat pump and In a heat pump system using a geothermal heat comprising a geothermal circulation pump for smoothly circulating geothermal water in the pipe connecting the geothermal heat exchanger, N units comprising the geothermal heat exchanger, geothermal circulation pump and heat pump as a system Is done.

Although the registered patent can control the geothermal circulation pump according to the load in order and control the number, the program for calculating the energy of each unit and the energy amount comparison program and the connection between each unit and the controller Since the communication line for the separate should be provided, there was a complicated installation work.

In addition, the geothermal heat exchanger, the geothermal circulating pump and the heat pump as a unit to install a controller for each one unit, eventually a controller is required for each geothermal exchanger is not only complicated installation work but also increased energy consumption There was a problem.

In addition, the registered patent does not specifically mention a configuration or method for continuously supplying groundwater within an appropriate temperature range required for heat exchange, and thus, a problem when the freezing tone (supply groundwater amount) is out of an appropriate temperature range even if it is satisfied. Did not solve.

An object of the present invention devised to solve the above problems is to provide a cooling and heating system and method using groundwater to ensure that the appropriate quantity of the ground water required for heat exchange with the indoor circulation in the cooling and heating system or the appropriate water temperature is continuously maintained. To do it.

Another object of the present invention is to provide a cooling and heating system and method using groundwater, in which one controller or one auxiliary controller controls a plurality of cardiac pumps to simplify installation and maintenance work.

In the present invention for achieving the above object, in the cooling and heating system using geothermal heat supply system comprising a supply line for supplying the groundwater accumulated in the borehole to the heat exchanger, and a return line for re-introducing the heat exchanged groundwater into the borehole, the supply line ( Heart pump (100) for supplying the groundwater accumulated in the borehole through the 200 through the heat exchanger, the heat exchanger (300), the heat exchanger 300 is a heat exchange between the ground water and the circulation water circulated to the room through the heart pump ) Is a return line 400 for re-introducing ground water, which has undergone heat exchange in the borehole, and the ground heat supplied through the heat exchanger 300 to convert the ground water into energy that can be used for cooling and heating, and detecting the supplied ground heat temperature. Heat pump 5 including a sensor 510 and a controller 520 for controlling the operation of the cardiac pump 100 in accordance with the sensed temperature. 00).

Preferably, the heat pump is characterized in that connected to at least two heart pumps.

Also preferably, the heat pump is characterized in that it is connected to at least one auxiliary heart pump installed in a separate borehole.

Also preferably, the auxiliary heart pump is characterized in that the drive is controlled by a separate auxiliary controller connected to the heat pump.

In the air-conditioning method according to the system of the present invention described above, (a) the heat pump to drive the heart pump (①), (b) the heat pump senses the temperature of the ground water supplied by the independent drive of the heart pump pump ① Determining whether the temperature is within a reference temperature range preset by the heat pump; and (c1) if the temperature is within the reference temperature range as a result of the determination of step (b), returning to the step (a) to perform the procedure. Step, (c2) as a result of the determination of step (b), if the temperature is not within the reference temperature range, the heat pump drives the heart pump ②, (d) after the step (c2), the heat pump is the Determining the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② to determine whether the temperature within the reference temperature range preset to the heat pump, (e1) the determination result of step (d), reference Temperature range Returning to the step (c2) if the temperature is within the step of performing the procedure; (e2) if the temperature is not within the reference temperature range as a result of the determination of the step (d), the heat pump stops the heart pump ① (f) after the step (e2), determining whether the heat pump is within a reference temperature range preset by the heat pump by sensing the temperature of the ground water supplied by the independent operation of the cardiac pump ②, ( g1) if the determination result of step (f) is a temperature within a reference temperature range, returning to step (e2) to perform the procedure; (g2) the determination result of step (f), reference temperature range If the temperature is not within the heat pump driving the cardiac pump ①, (h) after the (g2) step, the heat pump is the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and cardiac pump ② Detect the hit Determining whether the temperature is within a reference temperature range preset in the program; and (i1) performing the procedure by returning to the (g2) step if the temperature is within the reference temperature range as a result of the determination of the (h) step, (i2) the heat pump may stop the cardiac pump ② if the temperature is not within the reference temperature range as a result of the determination in the step (h).

Preferably, after the step (f), (f1) the heat pump drives the cardiac pump ③ if the temperature is not within a reference temperature range as a result of the determination in the step (f), (f2) the heat pump Determining whether the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ② and the cardiac pump ③ and whether the temperature within the reference temperature range preset to the heat pump, (f3a) the determination result of step (f2) Performing a procedure by returning to step (f1) if the temperature is within a reference temperature range; and (f3b) if the temperature is not within the reference temperature range, the heat pump is a cardiac pump ②. (F4) after the step (f3b), the heat pump senses the temperature of the groundwater supplied by the sole driving of the cardiac pump ③ to determine whether the temperature is within a preset temperature range preset to the heat pump. (F5a) if the determination result of step (f4) is a temperature within a reference temperature range, returning to step (f3b) to perform the procedure; (f5b) determination result of step (f4) , If the temperature is not within the reference temperature range, the heat pump drives the cardiac pump ①, (f6) after the (f5b) step, the heat pump is supplied by simultaneous driving of the cardiac pump ① and the cardiac pump ③. Determining the temperature of the ground water to determine whether the temperature is within the reference temperature range preset in the heat pump, and (f7a) If the temperature is within the reference temperature range as a result of the determination of the step (f6), return to the step (f5b) (F7b) characterized in that the heat pump stops the cardiac pump ③ if the temperature is not within the reference temperature range as a result of the determination of the step (f6).

Also preferably, after the step (b), (b1) when the determination result of the step (b) is out of the reference temperature range, the heat pump drives the auxiliary heart pump ④, (b2) Determining, by the heat pump, whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ④ is a temperature within a preset reference temperature range, (b3a) as a result of the determination of the step (b2), and a reference temperature If the temperature is within the range, returning to the step (b1) to perform the procedure, (b3b) as a result of the determination of the step (b2), if the deviation from the reference temperature range, the heat pump auxiliary auxiliary pump ⑤ (B4) determining whether the temperature of the ground water supplied by the heat pump by the simultaneous driving of the cardiac pump ①, the auxiliary cardiac pump ④, and the auxiliary cardiac pump ⑤ is a temperature within a preset reference temperature range; b5a) above If the determination result of step (b4) indicates that the temperature is within the reference temperature range, returning to step (b3b) to perform the procedure; (b5b) As a result of the determination of step (b4), in the reference temperature range In case of deviation, the heat pump drives the auxiliary heart pump ⑥, (b6) the ground water supplied by the heat pump by the simultaneous driving of the heart pump, the auxiliary heart pump ④, the auxiliary heart pump ⑤ and the auxiliary heart pump ⑥. Determining whether the temperature is within a preset reference temperature range, and (b7a) if the temperature is within the reference temperature range as a result of the determination in step (b6), returns to step (b5b) to perform the procedure. Step, (b7b) when the determination result of the step (b6), out of the reference temperature range, the heat pump stops the auxiliary heart pump ④, (b8) the heat pump is the heart pump pump ①, auxiliary heart pump ⑤ and auxiliary cardiac pump⑥ Determining whether the temperature of the groundwater supplied by the simultaneous driving is a temperature within a preset reference temperature range, and (b9a) if the temperature is within the reference temperature range as a result of the determination of the (b8) step, the step (b7b) Performing a procedure by returning, (b9b) stopping the auxiliary heart pump ⑤ when the heat pump is out of the reference temperature range as a result of the determination of the step (b8), (b10) the heat pump by the Determining whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ⑥ is a temperature within a preset reference temperature range, and (b11a) as a result of the determination of the step (b10), the temperature within the reference temperature range In the case of performing the procedure by returning to the step (b9b), (b11b) when the determination result of the step (b10) is out of the reference temperature range, the heat pump stops the auxiliary heart pump ⑥Characterized in that it comprises a step.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

Referring to Figures 3 and 4 will be described the air-conditioning system according to the present invention.

3 is an example of an air conditioning and heating system using groundwater according to an embodiment of the present invention, including three heat pumps 500, one heat exchanger 300, and six core pumps 100. , Is a view showing a case in which the heat pump 500 controls two cardiac pumps 100, respectively, FIG. 4 is an example of an air conditioning and heating system using groundwater according to another embodiment of the present invention. As such, the three heat pump 500, one heat exchanger 300, three heart pump 100, three auxiliary heart pump 600 and a separate auxiliary controller 700, the heat pump ( 500 each control one heart pump 100 and the other three auxiliary heart pump 600 is a diagram showing a case where the auxiliary controller 700 controls.

3 and 4, the air conditioning system according to the present invention includes a heart pump 100, a supply line 200, a heat exchanger 300, a return line 400 and a heat pump 500. .

The cardiac pump 100 pulls up the groundwater accumulated in the borehole (pumping) and performs the function of supplying the drawn groundwater to the heat exchanger 300 through the supply line 200.

The supply line 200 has the heart pump 100 installed therein, and serves to supply groundwater pumped through the heart pump 100 to the heat exchanger 300.

The heat exchanger 300 performs a function of heat exchange between the ground water supplied through the cardiac pump 100 and the circulating water circulated into the room.

The return line 400 performs a function of reintroducing groundwater, which has undergone heat exchange in the heat exchanger 300, into boreholes.

The heat pump 500 includes a temperature sensor 510 and a controller 520, and performs a function for using geothermal heat due to heat exchange of the heat exchanger 300 for cooling and heating.

The temperature sensor 510 is installed in the heat pump 500 and is supplied to the heat exchanger through the heart pump 100 inside the supply line 100 to detect the temperature of the groundwater in which heat exchange is performed.

The controller 520 is installed in the heat pump 500, and determines whether the temperature of the supply groundwater detected by the temperature sensor 510 is within a reference temperature range according to a preset reference temperature range. 100) to control the function.

An embodiment of the present invention will be described with reference to FIG. 3, and two cardiac pumps 100 are connected to three heat pumps 500, respectively. ① to ⑥ cardiac pumps 100 are all respectively. The drive is controlled by the connected controller 520 of the.

Referring to another embodiment of the present invention with reference to Figure 4, the air-conditioning system according to the present invention further comprises an auxiliary controller 600 and the auxiliary cardiac pump 700, the three heat pumps 500 The heart pumps 100 of 1 to 3 connected in a one-to-one correspondence are controlled by a controller 520 of the connected heat pump 500 and connected to a separate auxiliary controller 600 interlocked with the heat pump 500. The auxiliary heart pump 700 of ④ to ⑥ is driven and controlled by the auxiliary controller 600, and the auxiliary heart pump 700 of ④ to ⑥ is heat pump A, B and through the auxiliary controller 600. Are all linked with C.

The auxiliary controller 600 interlocks with the controller 520 to control driving of the auxiliary heart pump 700.

The auxiliary cardiac pump 700 supplies the groundwater in a separate borehole in which the auxiliary cardiac pump 700 is constructed to the heat exchanger when the quantity or temperature of the ground water according to the cardiac pump 100 is not suitable for heat exchange. It supplements the quantity or temperature of groundwater required for heat exchange.

Referring to Figures 5 to 6 the entire flow of the air-conditioning method using ground water according to an embodiment of the present invention using the system as follows.

5 is a flowchart illustrating a cooling and heating method using groundwater according to an embodiment of the present invention shown in FIG. 3, and FIG. 6 is a ground water diagram according to another embodiment of the present invention illustrated in FIG. 4. It is a flowchart which shows the cooling and heating method used.

Referring to Figure 5 described in detail the air-conditioning method according to an embodiment of the present invention.

As the heat pump A is driven, the controller in the heat pump drives the cardiac pump ① (S2).

The controller determines whether the temperature of the groundwater supplied by the driving of the cardiac pump ① is a temperature within a preset reference temperature range (S4).

As a result of the determination in step S4, when the reference temperature range is out of range, the controller drives the cardiac pump ② (S6).

As a result of the determination in step S4, if the temperature of the groundwater supplied by the operation of the cardiac pump ① is within a preset reference temperature range, the system returns to the step S2 to perform the procedure to continuously drive only the cardiac pump ①. As a result of the determination in step S4, if the temperature of the groundwater supplied by the operation of the cardiac pump ① is out of a temperature within a preset reference temperature range, the step S6 is performed to simultaneously drive the cardiac pump ① and the cardiac pump ②. Let's do it.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② is a temperature within a preset reference temperature range (S8).

As a result of the determination in step S8, when the reference temperature range is out of range, the controller stops the cardiac pump ① (S10).

As a result of the determination in the step S8, if the temperature of the groundwater supplied by the operation of the cardiac pump ① and the cardiac pump ② is within a preset reference temperature range, the flow returns to the step S6 to perform the procedure to perform the procedure. And simultaneously driving the cardiac pump ②, and if the temperature of the ground water supplied by the driving of the cardiac pump ① and the cardiac pump ② is out of a temperature within a preset reference temperature range, the step S10 may be performed. Drive only the cardiac well pump ②.

The controller determines whether the temperature of the groundwater supplied by the driving of the cardiac pump ② is a temperature within a preset reference temperature range (S12).

As a result of the determination in the step S12, when out of the reference temperature range, the controller drives the cardiac pump ① (S14).

As a result of the determination in step S12, if the temperature of the groundwater supplied by the operation of the cardiac pump ② is within a preset reference temperature range, the flow returns to the step S10 to perform the procedure to continue driving only the cardiac pump ②. As a result of the determination of step S12, when the temperature of the groundwater supplied by the operation of the cardiac pump ② is out of a temperature within a preset reference temperature range, step S14 is performed to simultaneously drive the cardiac pump ① and the cardiac pump ②. Let's do it.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② is a temperature within a preset reference temperature range (S16).

As a result of the determination in step S16, when the reference temperature range is out of range, the controller stops the cardiac pump ② (S18).

As a result of the determination in step S16, if the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② is within a preset reference temperature range, the flow returns to the step S14 to perform the procedure by performing the procedure. ① and the cardiac pump ② are simultaneously driven, and if the temperature of the ground water supplied by the simultaneous driving of the cardiac pump ① and the cardiac pump ② is out of a temperature within a preset reference temperature range as a result of the determination in step S16, the step S18 is performed. Drive only the cardiac pump ① by performing the step.

In addition, as a result of the determination in step S16, when the temperature is out of the preset reference temperature range, the process returns to the step S4 and repeats the steps S4 to S18.

In this embodiment, as shown in FIG. 5, one heat pump controls two cardiac pumps, so that the heat pump A controls the cardiac pump ① / ②, and the heat pump B controls the cardiac pump ③ / ④. In the control, the heat pump C controls the heart pump ⑤ / ⑥, and the heating and cooling method according to the driving of the heat pump B and the heat pump C is the same as the process of steps S2 to S18.

In addition, as shown in FIG. 5, the present embodiment shows a case in which three heat pumps control two cardiac pumps, respectively, but the present invention is not limited thereto.

Referring to Figure 6 described in detail the air-conditioning method according to another embodiment of the present invention shown in Figure 4 as follows.

According to the driving of the heat pump A, the controller in the heat pump drives the cardiac pump ① (S20).

The controller determines whether the temperature of the groundwater supplied by the driving of the cardiac pump ① is a temperature within a preset reference temperature range (S22).

As a result of the determination in step S22, when the heat pump transmits an auxiliary heart pump driving signal to a separate auxiliary controller, the auxiliary controller receives the transmitted signal to drive the auxiliary heart pump ④. (S24).

As a result of the determination of step S22, if the temperature of the groundwater supplied by the operation of the cardiac pump ① is within a preset reference temperature range, the procedure returns to the step S20 to perform the procedure to continuously drive only the cardiac pump ①. As a result of the determination in step S22, when the temperature of the groundwater supplied by the operation of the cardiac pump ① is out of a temperature within a preset reference temperature range, the step S24 may be performed to simultaneously operate the cardiac pump ① and the auxiliary cardiac pump ④. Drive it.

The auxiliary controller is connected to a plurality of auxiliary heart pumps (three auxiliary heart pumps in this embodiment), and the driving control sequence of the auxiliary heart pumps preset in the auxiliary controller (in this embodiment, 'secondary heart pump ④->). Drive in order according to ⑤-> ⑥ 'order).

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ④ is a temperature within a preset reference temperature range (S26).

As a result of the determination in step S26, when the heat pump transmits an auxiliary heart pump driving signal to the auxiliary controller, the auxiliary controller receives the transmitted signal to drive the auxiliary heart pump ⑤. (S28).

As a result of the determination in step S26, if the temperature of the ground water supplied by the operation of the cardiac pump ① and the auxiliary cardiac pump ④ is within a preset reference temperature range, the flow returns to the step S24 to perform the procedure by performing the procedure. ① and only the auxiliary cardiac pump ④ is simultaneously driven, and if the temperature of the ground water supplied by the driving of the cardiac pump ① and the auxiliary cardiac pump ④ is out of a temperature within a preset reference temperature range as a result of the determination in step S26 By performing step S28, the cardiac pump ①, the auxiliary cardiac pump ④ and the auxiliary cardiac pump ⑤ are simultaneously driven.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ④, and the auxiliary cardiac pump ⑤ is a temperature within a preset reference temperature range (S30).

As a result of the determination in step S30, when the heat pump transmits an auxiliary heart pump driving signal to the auxiliary controller, the auxiliary controller receives the transmitted signal to drive the auxiliary heart pump ⑥. (S32).

As a result of the determination in step S30, if the temperature of the groundwater supplied by the operation of the cardiac pump ①, the auxiliary cardiac pump ④, and the auxiliary cardiac pump ⑤ is within a preset reference temperature range, the process returns to step S28 to complete the procedure. By performing the simultaneous operation of only the cardiac pump ①, the auxiliary cardiac pump ④ and the auxiliary cardiac pump ⑤, the determination of the step S30, supplied by the drive of the cardiac pump ①, auxiliary cardiac pump ④ and auxiliary cardiac pump ⑤ When the temperature of the ground water is out of the temperature within the preset reference temperature range, step S32 is performed to simultaneously drive the cardiac pump ①, the auxiliary cardiac pump ④, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ④, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥ is within a preset reference temperature range (S34).

As a result of the determination in step S34, when the reference temperature range is out of the reference temperature range, when the heat pump transmits an auxiliary heart pump driving stop signal to the auxiliary controller, the auxiliary controller receives the transmitted signal to stop the auxiliary heart pump ④. (S36).

As a result of the determination in the step S34, if the temperature of the ground water supplied by the simultaneous driving of the cardiac pump ①, the auxiliary cardiac pump ④, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥ is a temperature within a preset reference temperature range, step S32; The cardiac pump ①, the auxiliary heart pump ④, the auxiliary heart pump ⑤ and the auxiliary heart pump ⑥ are simultaneously driven by returning to the procedure, and as a result of the determination of the step S34, the heart pump, the auxiliary heart pump ④, If the temperature of the groundwater supplied by the operation of the auxiliary heart pump ⑤ and the auxiliary heart pump ⑥ is out of a temperature within a preset reference temperature range, the step S36 is performed to only the heart pump ①, the auxiliary heart pump ⑤ and the heart pump ⑥. Run simultaneously.

The auxiliary controller is connected to three auxiliary cardiac pumps, and the driving control order of the auxiliary cardiac pumps preset in the auxiliary controller (stopped in the order of 'secondary cardiac pump ④-> ⑤-> ⑥' in this embodiment). Accordingly, the driving is controlled.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥ is within a preset reference temperature range (S38).

As a result of the determination in step S38, when the reference temperature range is out of the reference temperature range, when the heat pump transmits the auxiliary heart pump driving stop signal to the auxiliary controller, the auxiliary controller receives the transmitted signal and stops the auxiliary heart pump ⑤. (S40).

As a result of the determination in step S38, if the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥ is within a preset reference temperature range, the procedure returns to step S36. Simultaneously drive the cardiac pump ①, auxiliary cardiac pump ⑤ and auxiliary cardiac pump ⑥ by the operation, and as a result of the determination in step S38, the cardiac pump ①, auxiliary cardiac pump ⑤ and auxiliary cardiac pump ⑥ supplied by the drive When the temperature of the ground water is out of the temperature within the preset reference temperature range, the step S40 is performed to simultaneously drive only the cardiac pump ① and the auxiliary cardiac pump ⑥.

The controller determines whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ⑥ is a temperature within a preset reference temperature range (S42).

As a result of the determination in step S42, when the heat pump transmits an auxiliary heart pump driving stop signal to the auxiliary controller, the auxiliary controller receives the transmitted signal to stop the auxiliary heart pump ⑥. (S44).

As a result of the determination in step S42, when the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ⑥ is within a preset reference temperature range, the process returns to step S40 to perform the procedure. Simultaneously driving the pump ① and the auxiliary heart pump ⑥, if the temperature of the ground water supplied by the operation of the heart pump ① and the auxiliary heart pump ⑥ is out of the temperature within the preset reference temperature range as the determination result of the step Step S44 is performed to drive only the cardiac pump ① and return to step S22 to repeat the process of steps S22 to S44.

In this embodiment, as shown in FIG. 6, three heat pumps control one cardiac pump, so that the heat pump A controls the cardiac pump ①, the heat pump B controls the cardiac pump ②, Heat pump C controls the cardiac pump ③, and auxiliary controller pumps ④ to ⑥ are controlled by a separate controller.

The heating and cooling method according to the driving of the heat pump B and the heat pump C is the same as the process of steps S20 to S44.

In addition, in this embodiment, as shown in FIG. 6, three heat pumps control one heart pump each, and the other three auxiliary heart pumps have been shown to be controlled by a separate auxiliary controller. The invention is not limited thereto.

As described above, specific preferred embodiments of the present invention have been described, but the present invention is not limited to the above-described embodiments, and various modifications by those skilled in the art to which the present invention pertains are described below. It should be said that they fall within the claims of the present invention as claimed.

The present invention has the effect of continuously maintaining the appropriate temperature or flow rate of the supply groundwater required for heat exchange with the indoor circulation water by controlling a plurality of heart pumps connected to the heat pump in the cooling and heating system.

In addition, the present invention, because one controller or one auxiliary controller controls a plurality of cardiac pumps has the effect of easy installation and maintenance work.

Claims (7)

In the geothermal heating and cooling system comprising a supply line for supplying the groundwater accumulated in the borehole to the heat exchanger, and a return line for reflowing the heat exchanged groundwater into the borehole, A core pump for supplying groundwater accumulated in the borehole through the supply line to the heat exchanger; A heat exchanger in which heat exchange is performed between the ground water supplied through the heart pump and the circulating water circulated into the room; A return line for re-introducing groundwater heat exchanged in the heat exchanger into the borehole; And The geothermal heat is supplied through the heat exchanger and converted into energy that can be used for cooling and heating. The temperature sensor is supplied to the heat exchanger through the supply line and senses the temperature of the groundwater heat exchanged, and the heart pump is driven according to the sensed temperature. Including; a heat pump including a controller for controlling the The heat pump is connected to at least two cardiac pumps, air conditioning system using ground water, characterized in that connected to at least one auxiliary cardiac pump installed in a separate borehole. delete delete The method of claim 1, The auxiliary heart pump is ground-cooled heating and cooling system, characterized in that the drive is controlled by a separate auxiliary controller connected to the heat pump. In the air-conditioning method using geothermal heat, (a) a heat pump driving the heart pump ①; (b) determining whether the heat pump is within a reference temperature range preset by the heat pump by sensing the temperature of the ground water supplied by the independent operation of the cardiac pump ①; (c1) returning to step (a) if the temperature is within a reference temperature range as a result of the determination of step (b), and performing the procedure; (c2) the heat pump driving the cardiac pump ② if the temperature is within the reference temperature range as a result of the determination in the step (b); (d) after the step (c2), the heat pump detects the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② to determine whether the temperature is within a preset temperature range preset to the heat pump. step; (e1) performing a procedure by returning to step (c2) if the temperature is within a reference temperature range as a result of the determination of step (d); (e2) the heat pump stops the cardiac pump ① if the temperature is not within the reference temperature range as a result of the determination in the step (d); (f) after the step (e2), determining whether the heat pump is within a reference temperature range preset by the heat pump by sensing the temperature of the ground water supplied by the independent operation of the cardiac pump ②; (g1) performing the procedure by returning to the step (e2) if the temperature is within the reference temperature range as a result of the determination in the step (f); (g2) the heat pump driving the cardiac pump ① when the temperature is within the reference temperature range as a result of the determination in the step (f); (h) after the step (g2), the heat pump detects the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ② to determine whether the temperature is within a preset temperature range preset to the heat pump. step; And (i1) performing the procedure by returning to the (g2) step if the temperature is within a reference temperature range as a result of the determination in the (h) step; (i2) if the determination result of step (h) is not a temperature within a reference temperature range, the heat pump stops the heart pump ②. The method of claim 5, wherein after the step (f), (f1) the heat pump driving the cardiac pump ③ when the temperature is within the reference temperature range as a result of the determination in the step (f); (f2) determining whether the heat pump is within a reference temperature range preset by the heat pump by sensing the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ② and the cardiac pump ③; (f3a) returning to step (f1) to perform a procedure if the temperature is within a reference temperature range as a result of the determination in step (f2); (f3b) the heat pump stops the cardiac pump ② if it is not a temperature within a reference temperature range as a result of the determination in the step (f2); (f4) after the step (f3b), determining whether the heat pump is within a reference temperature range preset by the heat pump by sensing the temperature of the ground water supplied by the independent operation of the cardiac pump ③; (f5a) returning to step (f3b) to perform a procedure if the temperature is within a reference temperature range as a result of the determination in step (f4); (f5b) the heat pump driving the cardiac pump ① when the temperature is within the reference temperature range as a result of the determination in the step (f4); (f6) after the step (f5b), the heat pump detects the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and the cardiac pump ③ to determine whether the temperature is within a preset temperature range preset to the heat pump. step; And (f7a) returning to the step (f5b) and performing the procedure if the temperature is within the reference temperature range as a result of the determination in the step (f6); (f7b) as a result of the determination in the step (f6), if the temperature is not within the reference temperature range, the heat pump stops the cardiac pump ③; air-conditioning method using ground water. The method of claim 5, wherein after step (b), (b1) driving the auxiliary heart pump ④ when the heat pump is out of the reference temperature range as a result of the determination of the step (b); (b2) determining, by the heat pump, whether the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ④ is a temperature within a preset reference temperature range; (b3a) returning to step (b1) to perform a procedure when the temperature is within a reference temperature range as a result of the determination in step (b2); (b3b) when the determination result of the step (b2) is out of the reference temperature range, driving the auxiliary pump ⑤ by the heat pump; (b4) determining, by the heat pump, whether the temperature of the ground water supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ④, and the auxiliary cardiac pump ⑤ is a temperature within a preset reference temperature range; (b5a) if the temperature is within the reference temperature range as a result of the determination in the step (b4), returning to the step (b3b) to perform the procedure; (b5b) when the determination result of the step (b4) is out of the reference temperature range, the heat pump drives the auxiliary heart pump ⑥; (b6) determining whether the temperature of the groundwater supplied by the simultaneous operation of the heat pump ①, the auxiliary heart pump ④, the auxiliary heart pump ⑤, and the auxiliary heart pump ⑥ is within a preset reference temperature range; (b7a) if the temperature is within the reference temperature range as a result of the determination in the step (b6), returning to the step (b5b) to perform the procedure; (b7b) stopping the auxiliary heart pump ④ when the heat pump is out of the reference temperature range as a result of the determination in the step (b6); (b8) determining, by the heat pump, whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ①, the auxiliary cardiac pump ⑤, and the auxiliary cardiac pump ⑥ is a temperature within a preset reference temperature range; (b9a) if the temperature is within the reference temperature range as a result of the determination in the (b8) step, returning to the (b7b) step to perform the procedure; (b9b) stopping the auxiliary heart pump ⑤ when the heat pump is out of the reference temperature range as a result of the determination in the step (b8); (b10) determining, by the heat pump, whether the temperature of the groundwater supplied by the simultaneous operation of the cardiac pump ① and the auxiliary cardiac pump ⑥ is a temperature within a preset reference temperature range; And (b11a) if the temperature is within the reference temperature range as a result of the determination in the step (b10), returning to the step (b9b) to perform the procedure; (b11b) if the deviation from the reference temperature range as a result of the determination in the step (b10), the heat pump stops the auxiliary heart pump (6).

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