CN110906543B - Water-saving temperature control system of heat pump water heater - Google Patents
Water-saving temperature control system of heat pump water heater Download PDFInfo
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- CN110906543B CN110906543B CN201911260548.9A CN201911260548A CN110906543B CN 110906543 B CN110906543 B CN 110906543B CN 201911260548 A CN201911260548 A CN 201911260548A CN 110906543 B CN110906543 B CN 110906543B
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- sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention relates to the field of water heating equipment, in particular to a water-saving temperature control system of a heat pump water heater. It includes: the water tank, the sleeve, the water outlet pipeline I, the hot water pipeline, the water return pipeline I, the water outlet pipeline II, the cold water pipeline, the water return pipeline II and the water outlet end; a sleeve is arranged at the axis inside the water tank, and a condenser is arranged inside the sleeve; the lower end and the middle part of the sleeve are respectively provided with a plurality of through holes; after the water heater is stopped for a period of time, water flows in the water return pipeline quickly through hydraulic pressure in the water tank, and water in the water outlet pipeline I, the hot water pipeline and the water outlet pipeline II is absorbed through negative pressure formed by the Venturi tube, so that waste of water resources caused by the fact that cold water is needed first when the water heater is started next time is avoided.
Description
Technical Field
The invention relates to the field of water heating equipment, in particular to a water-saving temperature control system of a heat pump water heater.
Background
When a user uses the water heater, hot water cannot be discharged immediately, the user can use the water heater only by discharging residual cold water in a pipeline first, on one hand, a long waiting time is needed, and on the other hand, water resource waste can be caused.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a water saving and temperature controlling system for a heat pump water heater, which absorbs residual water in a pipe after the water heater stops operating by negative pressure, and reduces the amount of water to be fed when the temperature of the water is lower than a predetermined value, so that a heating device can rapidly heat the water in a tank.
Heat pump water heater water conservation and control system includes: the water tank, the sleeve, the water outlet pipeline I, the hot water pipeline, the water return pipeline I, the water outlet pipeline II, the cold water pipeline, the water return pipeline II and the water outlet end;
a sleeve is arranged at the axis inside the water tank, and a condenser is arranged inside the sleeve;
the lower end and the middle part of the sleeve are respectively provided with a plurality of through holes; one end of the water outlet pipeline is communicated with the upper end of the water tank, the middle part of the water outlet pipeline is provided with a first temperature sensor, and the other end of the water outlet pipeline is provided with a port of a three-way ball valve; the hot water pipeline is communicated with a second port of the three-way ball valve, the other end of the three-way ball valve is communicated with the plurality of mixers through branch pipelines, and the hot water pipeline supplies hot water to the water outlet end through the mixers; a second temperature sensor is arranged on the hot water pipeline; one end of the water return pipeline is connected with the three-way ball valve, and the other end of the water return pipeline is connected to the bottom surface of the water tank through the one-way valve; one end of the water outlet pipeline II penetrates through the water tank and extends inwards to be communicated with the middle part of the sleeve, and the other end of the water outlet pipeline II is communicated with the hot water pipeline; a first electromagnetic valve is arranged at the joint of the second water outlet pipeline and the water tank, and a second one-way valve is arranged at the joint of the second water outlet pipeline and the hot water pipeline; the cold water pipeline transmits cold water to the mixers and is provided with cold water branch pipes; and one end of the second water return pipeline is communicated with the lower end of the water tank, the other end of the second water return pipeline is communicated with the cold water branch pipe, a third electromagnetic valve is arranged at the communication position of the second water return pipeline and the water tank, a Venturi tube is arranged at the middle part of the second water return pipeline, an air inlet of the Venturi tube is communicated with a water return branch pipeline, the water return branch pipeline extends and is communicated with the hot water pipeline, and a fourth electromagnetic valve is arranged.
Advantageous effects
According to the invention, when the water temperature does not reach the preset value, the first water outlet pipeline 3 is closed, the high-temperature hot water in the sleeve 2 is supplemented, and meanwhile, the water pressure in the water tank 1 is reduced by the second water outlet pipeline 6, so that the water in the first water outlet pipeline 3 flows out slowly, the retention time of the low-temperature hot water in the water tank 1 is prolonged, the heating efficiency of the low-temperature hot water for the second time is accelerated, and the problems that the user feels uncomfortable after the water temperature is lower than the preset value and the waste is caused by the fact that the water cannot be used and the water runs off are avoided.
According to the invention, after the water heater is stopped for a period of time, water flows in the water return pipeline quickly through the hydraulic pressure in the water tank 1, and the water in the water outlet pipeline I3, the hot water pipeline 4 and the water outlet pipeline II 6 is absorbed through the negative pressure formed by the Venturi tube 82, so that the waste of water resources caused by the fact that cold water flows out first when the water heater is started next time is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the water tank of the present invention.
FIG. 3 is a schematic view showing a flow direction of water according to the first embodiment of the present invention.
FIG. 4 is a schematic view showing the direction of water flow according to the present invention.
As shown in the figure: the water-saving control system comprises a water tank 1, a sleeve 2, a water outlet pipeline 3, a hot water pipeline 4, a water return pipeline 5, a water outlet pipeline 6, a cold water pipeline 7, a water return pipeline 8, a water outlet end 9, a temperature sensor 31, a three-way ball valve 32, a temperature sensor 41, a one-way valve 51, an electromagnetic valve 61, an electromagnetic valve 62, a cold water branch pipe 71, an electromagnetic valve 72, an electromagnetic valve 81, a venturi pipe 82, a return branch pipe 83 and an electromagnetic valve 84.
Detailed Description
The present invention is further illustrated in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from the description herein, and it will be readily appreciated by those skilled in the art that the present invention can be embodied in many different forms without departing from the spirit and scope of the invention.
As shown in fig. 1, the water saving control system of the heat pump water heater comprises: the water-saving device comprises a water tank 1, a sleeve 2, a water outlet pipeline I3, a hot water pipeline 4, a water return pipeline I5, a water outlet pipeline II 6, a cold water pipeline 7, a water return pipeline II 8 and a water outlet end 9;
as shown in fig. 1, a sleeve 2 is arranged at the axis inside the water tank 1, and a condenser is arranged inside the sleeve 2, wherein a refrigerant flows upwards and downwards in the condenser;
the lower end and the middle part of the sleeve 2 are respectively provided with a plurality of through holes, wherein the width of the plurality of through holes at the lower end of the sleeve 2 is larger than that of the plurality of through holes at the middle part, firstly, part of cold water enters along the plurality of through holes at the lower end of the sleeve 2, the cold water is heated by a condenser and then is discharged from the plurality of through holes at the middle part of the sleeve 2, the discharged hot water and the cold water in the water tank 1 are mixed and flow to the upper end of the water tank 1, and the condenser can fully heat the water due to the fact that the plurality of through holes at the middle part of the;
one end of the first water outlet pipeline 3 is communicated with the upper end of the water tank 1, the middle of the first water outlet pipeline 3 is provided with a first temperature sensor 31, the other end of the first water outlet pipeline 3 is provided with a port of a three-way ball valve 32, the first temperature sensor 31 sets a preset temperature value to detect the temperature of water in the first water outlet pipeline 3, and the second temperature sensor 41 is opened when water is discharged from the water outlet end 9;
the hot water pipeline 4 is communicated with a second port of the three-way ball valve 32, the other end of the hot water pipeline is communicated with a plurality of mixers through branch pipelines, and the hot water pipeline 4 supplies hot water to the water outlet end 9 through the mixers;
the second temperature sensor 41 is arranged on the hot water pipeline 4, the second temperature sensor 41 sets a preset temperature value so as to detect the temperature of water in the hot water pipeline 4, wherein the preset temperature value of the second temperature sensor 41 is lower than the preset temperature value of the first temperature sensor 31, and the second temperature sensor 41 is in a closed state when water is discharged from the water outlet end 9;
two ends of the first water return pipeline 5 are respectively communicated with a third port of the three-way ball valve 32 and the axis of the bottom surface of the water tank 1, wherein a one-way valve 51 is arranged at the communication position of the first water return pipeline 5 and the bottom surface of the water tank 1;
a water outlet pipeline I3, a hot water pipeline 4 and a water return pipeline I5 are connected through three ports of the three-way ball valve 32;
one end of the water outlet pipeline II 6 penetrates through the water tank 1 and extends inwards to be communicated with the middle part of the sleeve 2, the other end of the water outlet pipeline II is communicated with the hot water pipeline 4 and is specifically positioned in front of the three-way ball valve 32, a first electromagnetic valve 61 is arranged at the joint of the water outlet pipeline II 6 and the water tank 2, and a second one-way valve 62 is arranged at the joint of the water outlet pipeline II 6 and the hot water pipeline 4;
the first electromagnetic valve 61 is in a half-open state after being opened, and the purpose is to reduce the water yield;
the cold water pipeline 7 transmits cold water to the plurality of mixers, the cold water pipeline 7 is provided with a cold water branch pipe 71, the cold water branch pipe 71 supplies water to the water tank 1, and a second electromagnetic valve 72 is arranged at the position where the cold water branch pipe 71 is communicated with the water tank 1;
one end of the second water return pipeline 8 is communicated with the lower end of the water tank 1, the other end of the second water return pipeline 8 is communicated with the cold water branch pipe 71, a third electromagnetic valve 81 is arranged at the communication position of the second water return pipeline 8 and the water tank 1, the middle of the second water return pipeline 8 is communicated with a venturi pipe 82, an air inlet of the venturi pipe 82 is communicated with a second water return pipeline 83, the second water return pipeline 83 extends to be communicated with the hot water pipeline 4, and a fourth electromagnetic valve 84 is arranged at the communication position of the second water return.
Preferably, as an implementation mode, the diameter of the second outlet pipe 6 is smaller than that of the first outlet pipe 3, and due to the higher temperature of the hot water in the sleeve 2, the water outlet quantity of the second outlet pipe 6 is reduced to be mixed with the cold water, so that the proper water temperature is achieved to flow out from the water outlet end 9.
Preferably, as an implementation mode, the plurality of through holes at the lower end of the sleeve 2 have a width larger than that of the plurality of through holes at the middle part, and the purpose is to make the water inlet amount of the sleeve 2 larger than the water outlet amount, so that cold water can be sufficiently heated in the sleeve 2.
The working principle of the invention is as follows:
when a user uses the water heater, hot water flows out along the first water outlet pipeline 3, flows to the hot water pipeline 4 through the three-way ball valve 32, enters the mixer to be mixed with cold water conveyed by the cold water pipeline 7, is discharged from the water outlet end 9, when the first temperature sensor 31 detects that the temperature of the water in the first water outlet pipeline 3 cannot reach a preset value, as shown in figure 3, the first electromagnetic valve 61 is controlled to be opened through the controller, high-temperature hot water in the sleeve 2 flows out along the second water outlet pipeline 6, enters the hot water pipeline 4, is mixed with the cold water conveyed by the cold water pipeline 7, and is discharged along the water outlet end 9, as the water pressure in the water tank 1 is reduced by the water flowing through the second water outlet pipeline 6, the flow rate of the water in the first water outlet pipeline 3 is reduced, the three-way ball valve 32 is used for communicating the first water outlet pipeline 3 with the water return pipeline 5, the low-temperature hot water is, when the first electromagnetic valve 61 is closed, the three-way ball valve 32 is communicated with the first water outlet pipeline 3 and the hot water pipeline 4 again, hot water flows to the hot water pipeline 4 along the first water outlet pipeline 3, the water outlet end 9 is closed after the use of a user is finished, the second electromagnetic valve 72 is closed, the second temperature sensor 41 is opened, when the temperature of the water in the hot water pipeline 4 is lower than the preset temperature of the second temperature sensor 41 after a period of time, as shown in fig. 4, the third electromagnetic valve 81 and the fourth electromagnetic valve 84 are opened, because the second water return pipeline 8 is communicated with the lower end of the water tank 1, the hydraulic pressure is high, the water in the water tank 1 quickly flows along the second water return pipeline 8, the air inlet of the venturi 82 forms negative pressure through the venturi 82, the water in the first water outlet pipeline 3, the hot water pipeline 4 and the second water outlet pipeline 6 is absorbed through the branch water return pipeline 83, and then enters the, and water in the water return pipeline II 8 is guided to be injected into the water tank 1 through negative pressure.
Claims (3)
1. Heat pump water heater water conservation temperature control system includes: the water-saving device comprises a water tank (1), a sleeve (2), a water outlet pipeline I (3), a hot water pipeline (4), a water return pipeline I (5), a water outlet pipeline II (6), a cold water pipeline (7), a water return pipeline II (8) and a water outlet end (9);
a sleeve (2) is arranged at the axis inside the water tank (1), and a condenser is arranged inside the sleeve (2);
the method is characterized in that: the lower end and the middle part of the sleeve (2) are respectively provided with a plurality of through holes; one end of the first water outlet pipeline (3) is communicated with the upper end of the water tank (1), a first temperature sensor (31) is arranged in the middle of the first water outlet pipeline (3), and one port of a three-way ball valve (32) is arranged at the other end of the first water outlet pipeline (3); the hot water pipeline (4) is communicated with a second port of the three-way ball valve (32), the other end of the hot water pipeline is communicated with the plurality of mixers through branch pipelines, and the hot water pipeline (4) supplies hot water to the water outlet end (9) through the mixers; a second temperature sensor (41) is arranged on the hot water pipeline (4); one end of the water return pipeline I (5) is connected with the three-way ball valve (32), and the other end of the water return pipeline I is connected to the bottom surface of the water tank (1) through the one-way valve I (51); one end of the water outlet pipeline II (6) penetrates through the water tank (1) and extends inwards to be communicated with the middle part of the sleeve (2), and the other end of the water outlet pipeline II is communicated with the hot water pipeline (4); a first electromagnetic valve (61) is arranged at the joint of the second water outlet pipeline (6) and the water tank (1), and a second one-way valve (62) is arranged at the joint of the second water outlet pipeline (6) and the hot water pipeline (4); the cold water pipeline (7) transmits cold water to the mixers, and the cold water pipeline (7) is provided with cold water branch pipes (71); one end of the second water return pipeline (8) is communicated with the lower end of the water tank (1), the other end of the second water return pipeline (8) is communicated with the cold water branch pipe (71), a third electromagnetic valve (81) is arranged at the communication position of the second water return pipeline (8) and the water tank (1), a Venturi tube (82) is arranged at the middle of the second water return pipeline, an air inlet of the Venturi tube (82) is communicated with a water return branch pipeline (83), the water return branch pipeline (83) extends to be communicated with the hot water pipeline (4), and a fourth electromagnetic valve (84) is arranged at the communication position.
2. The heat pump water heater water-saving temperature control system according to claim 1, characterized in that: the width of a plurality of through holes at the lower end of the sleeve (2) is larger than that of a plurality of through holes at the middle part.
3. The heat pump water heater water-saving temperature control system according to claim 1, characterized in that: the diameter of the water outlet pipe II (6) is smaller than that of the water outlet pipe I (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260548.9A CN110906543B (en) | 2019-12-10 | 2019-12-10 | Water-saving temperature control system of heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260548.9A CN110906543B (en) | 2019-12-10 | 2019-12-10 | Water-saving temperature control system of heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110906543A CN110906543A (en) | 2020-03-24 |
| CN110906543B true CN110906543B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911260548.9A Active CN110906543B (en) | 2019-12-10 | 2019-12-10 | Water-saving temperature control system of heat pump water heater |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5556476B2 (en) * | 2010-07-28 | 2014-07-23 | パナソニック株式会社 | Hot water storage water heater |
| CN102419001A (en) * | 2011-08-30 | 2012-04-18 | 海尔集团公司 | Heat pump water heater |
| CN103216869B (en) * | 2013-04-25 | 2015-08-12 | 华北电力大学（保定） | Hot-water pipeline system |
| CN104279758A (en) * | 2014-09-28 | 2015-01-14 | 延安市琥灵节水有限公司 | System for automatically recovering cold water in hot water pipeline |
| CN104939684A (en) * | 2015-07-29 | 2015-09-30 | 重庆市亚特蓝电器有限责任公司 | Intelligent water dispenser control method |
| CN106247627B (en) * | 2016-08-11 | 2019-02-05 | 江苏大学 | A kind of high-efficiency water-saving temperature regulating device |
| CN207610415U (en) * | 2017-11-28 | 2018-07-13 | 郑州大学 | A kind of water-saving return water recycling intelligence system of pot-type boiler |
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2019
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Address after: 334000, 1st floor, Building 2, No. 66 Chuangye Avenue, Chating Economic Development Zone, Guangxin District, Shangrao City, Jiangxi Province Patentee after: HAIPU ELECTRICAL APPLIANCE Co.,Ltd. Address before: 225775 room 122, No.9 standard workshop, area a, south of Meilan West Road and west of taixiang Road, Taizhou Economic Development Zone, Jiangsu Province Patentee before: HAIPU ELECTRICAL APPLIANCE Co.,Ltd. |