CN219415216U - Constant temperature gas heater system with water outlet function - Google Patents
Constant temperature gas heater system with water outlet function Download PDFInfo
- Publication number
- CN219415216U CN219415216U CN202223034560.8U CN202223034560U CN219415216U CN 219415216 U CN219415216 U CN 219415216U CN 202223034560 U CN202223034560 U CN 202223034560U CN 219415216 U CN219415216 U CN 219415216U
- Authority
- CN
- China
- Prior art keywords
- water
- pipe
- value
- temperature
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model relates to a re-water-outlet constant-temperature gas water heater system, which comprises a water inlet pipe (1), a water outlet pipe (2), a gas pipe (3), a first flow sensor (4), a gas proportional valve (6) and a combustion heat exchange system (7), and is characterized in that: the water circulation device comprises a water inlet pipe (1), a water outlet pipe (2), a water circulation pump (9), an inner circulation pipe (10) and a water electrolysis valve (11), wherein one end of the inner circulation pipe (10) is communicated with the water inlet pipe (1), the other end of the inner circulation pipe (10) is communicated with the water outlet pipe (2), the water circulation pump (9) is arranged at the downstream of the confluence of the water inlet pipe (1) and the inner circulation pipe (10), the water electrolysis valve (11) is arranged on the inner circulation pipe (10), and a first flow sensor (4) is arranged at the upstream of the confluence of the water inlet pipe (1) and the inner circulation pipe (10). Compared with the prior art, the utility model has the advantages that: the influence of the internal circulation on water used by users is reduced, and particularly, the problem that water used by users possibly does not exist in the internal circulation combustion process is solved.
Description
Technical Field
The utility model relates to a re-water-outlet constant-temperature gas water heater system.
Background
The common water heater system with the zero cold water function is shown in fig. 1, and comprises a circulating water pump 1', a combustion heat exchange system 2', a water inlet pipe 3', a water outlet pipe 4', a gas pipe 5' and a gas proportional valve 6', wherein the combustion heat exchange system 2' is provided with a water inlet, a water outlet and an air inlet, the water inlet pipe 3' is communicated with the water inlet of the combustion heat exchange system 2', the water outlet pipe 4' is communicated with the water outlet of the combustion heat exchange system 2', the gas proportional valve 6' is communicated with the inlet of the gas pipe 5', and the outlet of the gas pipe 5' is communicated with the air inlet of the combustion heat exchange system 2 '. The water heater system can not completely solve the problem of temperature drop during water re-outlet, and the specific reasons are as follows: the gas water heater is in the condition of water switching often appears in the use, after opening a period of hot water, closes water again, and the outlet conduit is filled with hot water, but when boiled water again immediately, because the combustor need carry out ignition and pass fire when starting, just can burn according to the temperature of user's demand after these processes are accomplished, so the user will feel at the tap end of water that the temperature is hot earlier (the hot water of leaving in the outlet conduit before), then slowly becomes cold (the cold water that appears in the ignition process), then the condition of heating again (the water heater that burns out according to the demand). When the gas water heater is used, the water temperature experience is poor, and the phenomenon is called water outlet temperature drop.
In order to solve the above problems, chinese patent publication No. CN 109297180A (application No. 201710610089.7) entitled "intelligent preheating circulation gas water heater, preheating circulation system and control method", discloses a water heater structure with internal circulation function, in which a water storage tank and a water pump are provided on a water inlet pipe, a three-way valve is provided on a water outlet pipe, a heat exchanger is provided between a water inlet pipe and a water outlet pipe, the three-way valve is communicated with the water storage tank through a bypass pipe, when the gas water heater starts the preheating circulation function, the three-way valve is controlled to be communicated with the bypass pipe, an internal circulation pipe system is formed among the water inlet pipe, the water pump, the heat exchanger, a water outlet pipe, the three-way valve, the bypass pipe and the water storage tank, and when a water outlet temperature T2 of the water storage tank is lower than a preset circulation temperature Tx, the water pump circulates the water in the internal circulation pipe system, and the water in the internal circulation pipe system is heated to not lower than the circulation temperature Tx by the gas water heater. In the structure, when the hot water is closed to perform internal circulation combustion, the hot water at the water inlet end of the heat exchanger is preheated, so that the water temperature reduction amplitude caused by the ignition and fire transmission processes when a user immediately boiled water again is greatly reduced, and the constant temperature of the re-discharged water is realized. However, a three-way valve is used in the control process, when the machine is in internal circulation, a user opens the hot water tap, but because the three-way valve closes the external circulation pipeline, the user side can not flow out, the three-way valve can open the external circulation pipeline after the internal circulation heating is completed, and the user can use water, so that great trouble is brought to the user; in addition, in the structure, the water flow sensor is arranged at the downstream of the confluence of the water inlet pipe and the inner circulating pipe, and the arrangement mode can monitor the inner circulating flow and the outer circulating flow and the normal water flow, but the machine can not identify the normal water use requirement of a user during the inner circulation.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a re-water constant-temperature gas water heater system which can not influence a user during internal circulation combustion.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a constant temperature gas heater system of water again, includes inlet tube, outlet pipe, first flow sensor, burning heat transfer system, circulating water pump, interior circulating pipe, and wherein burning heat transfer system has water inlet and delivery port, inlet tube and burning heat transfer system's water inlet intercommunication, outlet pipe and burning heat transfer system's delivery port intercommunication, and the one end and the inlet tube intercommunication of interior circulating pipe, the other end and the outlet pipe intercommunication of interior circulating pipe, circulating water pump arrange in the downstream that inlet tube and interior circulating pipe converged, its characterized in that: the water circulation system further comprises a water electromagnetic valve, the water electromagnetic valve is arranged on the inner circulation pipe, the first flow sensor is arranged at the upstream of the confluence of the water inlet pipe and the inner circulation pipe, and when the combustion heat exchange system enters the first constant-temperature combustion, the circulating water pump and the water electromagnetic valve are configured to: when the first flow sensor detects that the flow value is smaller than a first preset value, the internal circulation combustion state is entered, and at the moment, the water valve is opened, and the circulating water pump operates; in the internal circulation combustion state, if the first flow sensor detects that the flow value is larger than the second preset value, the water valve is closed, and the circulating water pump stops running. Namely: if a user opens the hot water tap when the machine is in internal circulation combustion, the first flow sensor can detect that flow passes through, the water flow is larger than a second preset value and can be identified as the useful water demand of the user, at the moment, the circulating water pump and the water valve are immediately closed, and at the moment, water flow directly flows out from the outlet of the water outlet pipe, so that the influence of the internal circulation combustion state on water consumption of the user is reduced. This is why the water flow sensor is arranged upstream of the confluence of the inlet pipe and the internal circulation pipe, and if arranged downstream, the possible internal circulation flow is comparable to the flow at which the user opens the tap, which would result in the machine failing to recognize whether the user has a water demand.
The utility model further comprises a water outlet temperature sensor and a water inlet temperature sensor, wherein the water inlet temperature sensor is arranged near a water inlet of the combustion heat exchange system, and the water outlet temperature sensor is arranged at the upstream of the confluence of the water outlet pipe and the inner circulating pipe; in an internal circulation combustion state, the combustion heat exchange system, the circulating water pump and the water solenoid valve are configured to: when the first flow sensor detects that the flow value is smaller than a second preset value and the outlet water temperature sensor detects that the temperature value is larger than or equal to the preset temperature value, the combustion heat exchange system stops combustion, the water electrolysis valve is closed, and the circulating water pump stops running; or/and, when the first flow sensor detects that the flow value is smaller than a second preset value and the outlet water temperature sensor detects that the temperature value is smaller than the preset temperature value, and the temperature value detected by the inlet water temperature sensor reaches the set bath temperature, the combustion heat exchange system stops combustion, the water electromagnetic valve is closed, and the circulating water pump stops running; or/and when the first flow sensor detects that the flow value is smaller than the second preset value and the temperature value detected by the water outlet temperature sensor is smaller than the preset temperature value, the combustion heat exchange system maintains the minimum load combustion when the temperature value detected by the water inlet temperature sensor does not reach the set bath temperature, the water electromagnetic valve is opened, and the circulating water pump operates. In the internal circulation combustion stage, whether the temperature of the discharged water exceeds the preset temperature is continuously monitored, if so, the combustion is stopped immediately, the water temperature is prevented from being excessively scalded, and the temperature of the discharged water is always kept constant.
The utility model further comprises a water outlet temperature sensor, a water inlet temperature sensor and a second flow sensor, wherein the water inlet temperature sensor is arranged near a water inlet of the combustion heat exchange system, the water outlet temperature sensor is arranged at the upstream of the confluence of the water outlet pipe and the inner circulating pipe, and the second flow sensor is arranged on the inner circulating pipe; after the combustion heat exchange system enters the first constant temperature combustion, the combustion heat exchange system, the circulating water pump and the water electromagnetic valve are further configured to: when the first flow sensor detects that the flow value is smaller than a first preset value and the second flow sensor detects that the flow value is larger than a second preset value, the internal circulation combustion state is entered, at the moment, the combustion heat exchange system enters a minimum load combustion state, the water and electricity valve is opened, and the circulating water pump operates; if the first flow sensor detects that the flow value is smaller than a first preset value and the second flow sensor detects that the flow value is smaller than or equal to a second preset value, the water valve is closed, the circulating water pump stops running, and the combustion heat exchange system stops burning. The first flow sensor is used for monitoring the water demand flow and the external circulation flow of the user, the second flow sensor is used for monitoring the internal circulation flow, and the control method is more reasonable.
Further improved, in the internal circulation combustion state, the combustion heat exchange system, the circulating water pump and the water solenoid valve are configured to: when the first flow sensor detects that the flow value is smaller than a second preset value and the outlet water temperature sensor detects that the temperature value is larger than or equal to the preset temperature value, the combustion heat exchange system stops combustion, the water electrolysis valve is closed, and the circulating water pump stops running; or/and, when the first flow sensor detects that the flow value is smaller than a second preset value and the outlet water temperature sensor detects that the temperature value is smaller than the preset temperature value, and the temperature value detected by the inlet water temperature sensor reaches the set bath temperature, the combustion heat exchange system stops combustion, the water electromagnetic valve is closed, and the circulating water pump stops running; or/and when the first flow sensor detects that the flow value is smaller than the second preset value and the temperature value detected by the water outlet temperature sensor is smaller than the preset temperature value, the combustion heat exchange system maintains the minimum load combustion when the temperature value detected by the water inlet temperature sensor does not reach the set bath temperature, the water electromagnetic valve is opened, and the circulating water pump operates. In the internal circulation combustion stage, whether the temperature of the discharged water exceeds the preset temperature is continuously monitored, if so, the combustion is stopped immediately, the water temperature is prevented from being excessively scalded, and the temperature of the discharged water is always kept constant.
Preferably, the first preset value is 1.5L/min, the second preset value is 2L/min, and the preset temperature value is 50 ℃.
The utility model further comprises a gas pipe and a gas proportional valve, the combustion heat exchange system further comprises a gas inlet, the gas proportional valve is communicated with the inlet of the gas pipe, and the outlet of the gas pipe is communicated with the gas inlet of the combustion heat exchange system.
Compared with the prior art, the utility model has the advantages that: when the combustion heat exchange system enters the first constant-temperature combustion, if the first flow sensor detects that the flow value is smaller than a first preset value, the combustion system enters an internal circulation combustion state, cold water in the water inlet pipe is changed into hot water in a post-heating mode, and when a user opens the hot water tap again in a short period of time, the hot water can ensure that the temperature of the outlet water is close to the set temperature in the non-heating time of machine ignition and fire transmission, so that the temperature drop phenomenon of the re-outlet water is greatly relieved; and if a user opens the hot water tap when the machine is in internal circulation combustion, the first flow sensor can detect that the water flow passes through, the water flow is larger than a second preset value and can be identified as the user useful water demand, at the moment, the circulating water pump and the water valve are immediately closed, at the moment, water flow directly flows out from the outlet of the water outlet pipe, the combustion heat exchange system enters a normal constant-temperature combustion state, the influence of internal circulation on the user water is reduced, and particularly, the problem that water is not available for the user in the internal circulation combustion process is solved, and the problem that the machine cannot identify the user water state and always burns under the minimum load is solved.
Drawings
FIG. 1 is a schematic diagram of a prior art water heater system with zero cold water function.
Fig. 2 is a schematic structural diagram of a constant temperature gas water heater system with water outlet in accordance with a first embodiment of the present utility model.
FIG. 3 is a control flow chart of the constant temperature gas water heater system for re-discharging water in the first embodiment of the utility model.
Fig. 4 is a schematic structural diagram of a constant temperature gas water heater system with water outlet in the second embodiment of the utility model.
FIG. 5 is a control flow chart of a constant temperature gas water heater system with water outlet in a second embodiment of the utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Example 1
The re-water constant temperature gas water heater system shown in fig. 2 comprises a water inlet pipe 1, a water outlet pipe 2, a gas pipe 3, a first flow sensor 4, a gas proportional valve 6, a combustion heat exchange system 7, a circulating water pump 9, an inner circulating pipe 10, a water electromagnetic valve 11, a water outlet temperature sensor 12 and a water inlet temperature sensor 13, wherein the combustion heat exchange system 7 is provided with a water inlet, a water outlet and a gas inlet, the water inlet pipe 1 is communicated with the water inlet of the combustion heat exchange system 7, the water outlet pipe 2 is communicated with the water outlet of the combustion heat exchange system 7, the gas proportional valve 6 is communicated with the inlet of the gas pipe 3, and the outlet of the gas pipe 3 is communicated with the gas inlet of the combustion heat exchange system 7; one end of the inner circulating pipe 10 is communicated with the water inlet pipe 1, the other end of the inner circulating pipe 10 is communicated with the water outlet pipe 2, the circulating water pump 9 is arranged at the downstream of the confluence of the water inlet pipe 1 and the inner circulating pipe 10, the water solenoid valve 11 is arranged on the inner circulating pipe 10, and the first flow sensor 4 is arranged at the upstream of the confluence of the water inlet pipe 1 and the inner circulating pipe 10; a water inlet temperature sensor 13 is arranged near the water inlet of the combustion heat exchange system 7, and a water outlet temperature sensor 12 is arranged upstream of the confluence of the water outlet pipe 2 and the inner circulation pipe 10.
The first flow sensor 4, the outlet water temperature sensor 12, the inlet water temperature sensor 13, the combustion heat exchange system 7, the circulating water pump 9 and the water valve 11 are all in communication connection with a control board of the gas water heater, and the control board controls the working states of the combustion heat exchange system 7, the circulating water pump 9 and the water valve 11 according to signals of the first flow sensor 4, the outlet water temperature sensor 12 and the inlet water temperature sensor 13. The specific control logic is shown in fig. 3, when a user opens the hot water tap, the combustion heat exchange system 7 enters first constant-temperature combustion, and at the moment, the control board controls the water electromagnetic valve 11 to be closed; under the normal water use condition of a user, the control board controls the water valve 11 to be always closed, and water enters the combustion heat exchange system 7 through the water inlet pipe and then flows out from the outlet of the water outlet pipe, so that hot water is provided for the user. After the user finishes using hot water and closes the hot water tap, the first water flow sensor 4 detects that the flow is smaller than a first preset value, such as 1.5L/min, the machine enters an internal circulation combustion state, at the moment, the control board controls the combustion heat exchange system 7 to enter a minimum load combustion state, the instant dead water is prevented from causing water temperature overheating, the control board controls the water valve 11 to be opened immediately, the control board controls the circulating water pump 9 to start to operate, and because the water resistance of the external circulation is far larger than that of the internal circulation, the water flow pumped by the circulating water pump flows through the internal circulation pipe, and the machine enters the internal circulation combustion. If a user opens the hot water tap when the machine is in internal circulation combustion, the first flow sensor 4 can detect that flow passes, namely if the first flow sensor 4 detects that the flow value is larger than a second preset value, such as 2L/min, the water demand of the user can be identified, at the moment, the control board immediately closes the circulating water pump 9 and the water electromagnetic valve 11, so that water flows out through the outlet of the water outlet pipe, the control board controls the combustion heat exchange system 7 to enter a normal constant-temperature combustion state, and the influence of the internal circulation on the water consumption of the user is reduced; this is why the first water flow sensor is arranged upstream of the confluence of the inlet pipe and the internal circulation pipe, and if the first water flow sensor is arranged downstream, the internal circulation flow is likely to be equivalent to the flow of the water tap opened by the user, which results in the machine failing to recognize whether the user has water demand; when the machine is in internal circulation combustion, if the first flow sensor 4 detects that the flow value is smaller than a second preset value, namely 2L/min, a user is regarded as not opening a hot water faucet, no water is needed, at the moment, the water temperature and the water inlet temperature are detected in real time, when the water outlet temperature sensor 12 detects that the temperature value is greater than or equal to a preset temperature value, such as 50 ℃, the control board controls the combustion heat exchange system 7 to stop combustion, controls the water electromagnetic valve 11 to be closed, controls the circulating water pump 9 to stop running, and prevents the water temperature from being too high and scalding the user; when the first flow sensor 4 detects that the flow value is smaller than a second preset value, the outlet water temperature sensor 12 detects that the temperature value is smaller than a preset temperature value such as 50 ℃, and the temperature value detected by the inlet water temperature sensor 13 reaches a set bath temperature, the control board controls the combustion heat exchange system 7 to stop combustion, controls the water electrolysis valve 11 to be closed, and controls the circulating water pump 9 to stop running; when the first flow sensor 4 detects that the flow value is smaller than the second preset value and the outlet water temperature sensor 12 detects that the temperature value is smaller than the preset temperature value, the control panel controls the combustion heat exchange system 7 to maintain the minimum load combustion, controls the water electrolysis valve 11 to be opened and controls the circulating water pump 9 to operate when the temperature value detected by the inlet water temperature sensor 13 does not reach the set bath temperature. The purpose of arranging the water inlet temperature sensor 13 near the water inlet of the combustion heat exchange system 7 is to enable the temperature detected during internal circulation to reflect the temperature of the whole front water section, the water outlet temperature sensor 12 is arranged at the upstream of the confluence of the water outlet pipe 2 and the internal circulation pipe 10, and the circulating water pump 9 is arranged at the downstream of the confluence of the water inlet pipe 1 and the internal circulation pipe 10, so that the combustion during internal circulation can be normally performed. Therefore, after the hot water is used for the first time, the front-end cold water section originally existing in the water inlet pipe of the machine is changed into the hot water section through a post-heating mode, and when a user opens the hot water tap again in a short period of time, the hot water section can ensure that the temperature of the discharged water is close to the set temperature in the non-heating time of machine ignition and fire transmission, so that the temperature drop phenomenon of the discharged water is greatly relieved.
Example two
Unlike the first embodiment, the second flow sensor 14 is also disposed on the inner circulation pipe 10, as shown in fig. 4.
The first embodiment has a simple structure and little influence on users, but there is a certain risk that the circulating water flow is unknown when the internal circulation is performed, and if the water flow is not generated when the water circulation valve is damaged to cause the internal circulation operation of the circulating water pump, the machine is in a dead water heating state, and the heat exchanger is possibly burnt out.
In this embodiment, the second flow sensor is disposed on the inner circulation pipe, so that the first flow sensor can be used to monitor the water demand flow of the user and the external circulation flow, the second flow sensor can be used to monitor the internal circulation flow, and the control board controls the opening of the combustion heat exchange system 7, the water solenoid valve 11 and the working state of the circulating water pump 9 according to the signals of the first flow sensor 4, the second flow sensor 14, the water outlet temperature sensor 12 and the water inlet temperature sensor 13, and the specific control logic is shown in fig. 5. The flow judgment of the internal circulation combustion is increased when the internal circulation combustion is started, namely: only when the first flow sensor 4 detects that the flow value is smaller than a first preset value such as 1.5L/min and the second flow sensor 14 detects that the flow value is larger than a second preset value and is 2L/min, the internal circulation combustion state is brought into, at the moment, the combustion heat exchange system 7 enters a minimum load combustion state, the water and electricity valve 11 is opened, and the circulating water pump 9 is operated; if the first flow sensor 4 detects that the flow value is smaller than the first preset value and the second flow sensor 14 detects that the flow value is smaller than or equal to the second preset value, the water electromagnetic valve 11 is closed, the circulating water pump 9 stops running, and the combustion heat exchange system 7 stops burning. Also, in the internal circulation combustion state, the combustion heat exchange system 7, the circulating water pump 9, and the water solenoid valve 11 are further configured to: when the first flow sensor 4 detects that the flow value is smaller than a second preset value and the outlet water temperature sensor 12 detects that the temperature value is larger than or equal to a preset temperature value such as 50 ℃, the combustion heat exchange system 7 stops burning, the water electromagnetic valve 11 is closed, and the circulating water pump 9 stops running; when the first flow sensor 4 detects that the flow value is smaller than a second preset value, the outlet water temperature sensor 12 detects that the temperature value is smaller than the preset temperature value, and the temperature value detected by the inlet water temperature sensor 13 reaches the set bath temperature, the combustion heat exchange system 7 stops combustion, the water electromagnetic valve 11 is closed, and the circulating water pump 9 stops running; when the first flow sensor 4 detects that the flow value is smaller than the second preset value and the outlet water temperature sensor 12 detects that the temperature value is smaller than the preset temperature value, the combustion heat exchange system 7 maintains the minimum load combustion when the temperature value detected by the inlet water temperature sensor 13 does not reach the set bath temperature, the water electromagnetic valve 11 is opened, and the circulating water pump 9 operates.
In this embodiment, after the machine enters the internal circulation combustion state, if the user has a water requirement, by adopting the scheme of this embodiment, the influence on the water consumption of the user is greatly reduced, so that the problem that the water consumption of the user may not be present in the internal circulation combustion process is solved, and the problem that the machine cannot identify the water consumption state of the user, so that the user always burns under a certain load (such as a minimum load) is solved.
Claims (7)
1. The utility model provides a constant temperature gas heater system of water again, including inlet tube (1), outlet pipe (2), first flow sensor (4), burning heat transfer system (7), circulating water pump (9), interior circulating pipe (10), wherein burning heat transfer system (7) have water inlet and delivery port, inlet tube (1) and the water inlet intercommunication of burning heat transfer system (7), outlet pipe (2) and the delivery port intercommunication of burning heat transfer system (7), the one end and inlet tube (1) intercommunication of interior circulating pipe (10), the other end and outlet pipe (2) intercommunication of interior circulating pipe (10), the low reaches that converges at inlet tube (1) and interior circulating pipe (10) are arranged to circulating water pump (9), its characterized in that: the water inlet pipe (1) is connected with the water inlet pipe (10) through the water inlet pipe and the water outlet pipe (10), and the water inlet pipe is connected with the water inlet pipe through the water inlet pipe (10) through the water inlet pipe and the water outlet pipe; after the combustion heat exchange system (7) enters the first constant temperature combustion, the circulating water pump (9) and the water electromagnetic valve (11) are configured to: when the first flow sensor (4) detects that the flow value is smaller than a first preset value, the internal circulation combustion state is entered, at the moment, the water solenoid valve (11) is opened, and the circulating water pump (9) operates; in the internal circulation combustion state, if the first flow sensor (4) detects that the flow value is larger than the second preset value, the water solenoid valve (11) is closed, and the circulating water pump (9) stops running.
2. The re-outlet thermostatic gas water heater system of claim 1 wherein: the water outlet temperature sensor (12) and the water inlet temperature sensor (13) are also included, the water inlet temperature sensor (13) is arranged near the water inlet of the combustion heat exchange system (7), and the water outlet temperature sensor (12) is arranged at the upstream of the confluence of the water outlet pipe (2) and the inner circulating pipe (10); in an internal circulation combustion state, the combustion heat exchange system (7), the circulating water pump (9) and the water and electricity valve (11) are further configured to: when the first flow sensor (4) detects that the flow value is smaller than a second preset value and the outlet water temperature sensor (12) detects that the temperature value is larger than or equal to the preset temperature value, the combustion heat exchange system (7) stops burning, the water electromagnetic valve (11) is closed, and the circulating water pump (9) stops running; or/and, when the first flow sensor (4) detects that the flow value is smaller than a second preset value, the outlet water temperature sensor (12) detects that the temperature value is smaller than the preset temperature value, and the temperature value detected by the inlet water temperature sensor (13) reaches the set bath temperature, the combustion heat exchange system (7) stops burning, the water electrolysis valve (11) is closed, and the circulating water pump (9) stops running; or/and when the first flow sensor (4) detects that the flow value is smaller than a second preset value and the temperature value detected by the water outlet temperature sensor (12) is smaller than the preset temperature value, the temperature value detected by the water inlet temperature sensor (13) does not reach the set bath temperature, the combustion heat exchange system (7) maintains the minimum load combustion, the water electromagnetic valve (11) is opened, and the circulating water pump (9) operates.
3. The re-outlet thermostatic gas water heater system of claim 1 wherein: the system also comprises a water outlet temperature sensor (12), a water inlet temperature sensor (13) and a second flow sensor (14), wherein the water inlet temperature sensor (13) is arranged near a water inlet of the combustion heat exchange system (7), the water outlet temperature sensor (12) is arranged at the upstream of the confluence of the water outlet pipe (2) and the inner circulating pipe (10), and the second flow sensor (14) is arranged on the inner circulating pipe (10); after the combustion heat exchange system (7) enters the first constant temperature combustion, the combustion heat exchange system (7), the circulating water pump (9) and the water electromagnetic valve (11) are further configured to: when the first flow sensor (4) detects that the flow value is smaller than a first preset value and the second flow sensor (14) detects that the flow value is larger than a second preset value, the internal circulation combustion state is entered, at the moment, the combustion heat exchange system (7) enters a minimum load combustion state, the water solenoid valve (11) is opened, and the circulating water pump (9) operates; if the first flow sensor (4) detects that the flow value is smaller than a first preset value and the second flow sensor (14) detects that the flow value is smaller than or equal to a second preset value, the water solenoid valve (11) is closed, the circulating water pump (9) stops running, and the combustion heat exchange system (7) stops burning.
4. A re-outlet thermostatic gas water heater system as defined in claim 3, wherein: in an internal circulation combustion state, the combustion heat exchange system (7), the circulating water pump (9) and the water and electricity valve (11) are further configured to: when the first flow sensor (4) detects that the flow value is smaller than a second preset value and the outlet water temperature sensor (12) detects that the temperature value is larger than or equal to the preset temperature value, the combustion heat exchange system (7) stops burning, the water electromagnetic valve (11) is closed, and the circulating water pump (9) stops running; or/and, when the first flow sensor (4) detects that the flow value is smaller than a second preset value, the outlet water temperature sensor (12) detects that the temperature value is smaller than the preset temperature value, and the temperature value detected by the inlet water temperature sensor (13) reaches the set bath temperature, the combustion heat exchange system (7) stops burning, the water electrolysis valve (11) is closed, and the circulating water pump (9) stops running; or/and when the first flow sensor (4) detects that the flow value is smaller than a second preset value and the temperature value detected by the water outlet temperature sensor (12) is smaller than the preset temperature value, the temperature value detected by the water inlet temperature sensor (13) does not reach the set bath temperature, the combustion heat exchange system (7) maintains the minimum load combustion, the water electromagnetic valve (11) is opened, and the circulating water pump (9) operates.
5. The re-outlet thermostatic gas water heater system according to claim 1 or 2 or 3 or 4, wherein: the first preset value is 1.5L/min, and the second preset value is 2L/min.
6. The re-outlet thermostatic gas water heater system according to claim 2 or 4, wherein: the preset temperature value is 50 ℃.
7. The re-outlet thermostatic gas water heater system according to claim 1 or 2 or 3 or 4, wherein: the gas heat exchange system is characterized by further comprising a gas pipe (3) and a gas proportional valve (6), wherein the combustion heat exchange system (7) further comprises a gas inlet, the gas proportional valve (6) is communicated with the inlet of the gas pipe (3), and the outlet of the gas pipe (3) is communicated with the gas inlet of the combustion heat exchange system (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223034560.8U CN219415216U (en) | 2022-11-14 | 2022-11-14 | Constant temperature gas heater system with water outlet function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223034560.8U CN219415216U (en) | 2022-11-14 | 2022-11-14 | Constant temperature gas heater system with water outlet function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219415216U true CN219415216U (en) | 2023-07-25 |
Family
ID=87240591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223034560.8U Active CN219415216U (en) | 2022-11-14 | 2022-11-14 | Constant temperature gas heater system with water outlet function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219415216U (en) |
-
2022
- 2022-11-14 CN CN202223034560.8U patent/CN219415216U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108679848B (en) | Water flow property judgment method of hot water supply device and gas heating water heater | |
| CN109297179B (en) | Electric auxiliary preheating circulation gas water heater, preheating circulation system and control method | |
| CN211695444U (en) | Water heater system | |
| CN110220313A (en) | Gas water heater control method and gas water heater | |
| CN105485908A (en) | Hot water system and control method thereof | |
| JPH0714758Y2 (en) | 1 can 3 circuit water heater | |
| CN209459196U (en) | Gas water heater | |
| CN219415216U (en) | Constant temperature gas heater system with water outlet function | |
| CN208751007U (en) | Central hot water gas heater and its application system | |
| CN111089418A (en) | Working system and working method of dual-purpose furnace | |
| CN110513862B (en) | Series-type gas water heater, series-type system, pressurizing method and preheating method | |
| JP3774615B2 (en) | Test run control method for hot water heater | |
| CN115751705A (en) | Go out water constant temperature gas heater system again | |
| JP3773752B2 (en) | Test run control method for hot water heater | |
| JP2012013243A (en) | Hot water supply system | |
| CN110207248A (en) | Water path system of wall-mounted boiler capable of preheating domestic water, wall-mounted boiler and control method of wall-mounted boiler | |
| CN111457597B (en) | Water supply device, water supply system, control method of water supply system and water heater | |
| CN211290575U (en) | External control module of gas water heater and gas water heater system thereof | |
| CN210320676U (en) | Circulating water return device and instant heating water outlet circulating system | |
| CN218480752U (en) | Constant temperature device and gas heater of rethreading | |
| CN219640460U (en) | Water heater system and water heater | |
| KR20140060773A (en) | Boiler for heating and hot-water supply | |
| JP2012013241A (en) | Hot water supply system | |
| CN111121300A (en) | Constant temperature control method for gas heating water heater | |
| CN217274873U (en) | Preheating device of water heater and water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |