CN212299352U - Closed water charging system of air energy heat pump - Google Patents
Closed water charging system of air energy heat pump Download PDFInfo
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- CN212299352U CN212299352U CN202020818214.0U CN202020818214U CN212299352U CN 212299352 U CN212299352 U CN 212299352U CN 202020818214 U CN202020818214 U CN 202020818214U CN 212299352 U CN212299352 U CN 212299352U
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Abstract
The utility model belongs to the technical field of air energy heat pump, concretely relates to air energy heat pump closed water charging system, including closed water charging box and dress structure, the closed water charging box is connected on air energy heat pump circulation system through the dress structure, air energy heat pump circulation system includes circulating water pump, be provided with antifreeze in the closed water charging box, the closed water charging box is connected at circulating water pump's the water inlet end and is used for replenishing the fluid loss during air energy heat pump circulation system operation; the utility model discloses an air can heat pump closed water charging system simple structure is reasonable, can supply anti-icing fluid to air can heat pump circulation system, not only can supply the loss of circulation system in service, can also prevent to use the system scale deposit that hard water such as running water caused, replaces and has improved the system and set up open moisturizing box and the condition of the moisturizing difficulty that causes in the highest department, adds anti-icing fluid and still has anti-freezing effect.
Description
Technical Field
The utility model belongs to the technical field of the air energy heat pump, concretely relates to air energy heat pump closed water charging system.
Background
Heating and refrigeration are necessary living conditions in daily life, as shown in fig. 1-4, the household split type, integrated type and commercial systems of the air energy heat pump in the current market usually adopt tap water for water supplement or an open type water supplement tank is arranged at the highest position of the system for water supplement of a circulating system of the air energy heat pump, so that no matter in the household and commercial systems, the system is scaled by adopting the tap water for water supplement, the energy efficiency of the system is gradually reduced or damaged, and the system adopting the open type water supplement tank is very difficult to realize and maintain, so the system is rarely adopted. The air energy heat pump system utilizes the heat pump technology to absorb the energy in the air to heat water, overcomes the defect that the traditional solar heating technology is influenced by weather, and is more energy-saving compared with an electric heating mode, so that the air energy heat pump system has the advantages that the heating and the refrigeration are increasingly favored by consumers and has the tendency of replacing an air conditioner.
In current heating of air energy heat pump system, refrigeration product, mostly adopt the running water as the heat transfer medium, in order to solve the system operation lack of water problem, insert the running water heat pump system wet return and mend water. Tap water is hard water and contains a large amount of calcium and magnesium ions, after the water is heated by a heat pump system, the calcium and magnesium ions in the water can form scale inside the system, the scale can be slowly adsorbed on the inner surface of the water system, and the scale can become thicker and thicker due to the balanced migration tendency of the calcium and magnesium ions in the water. Scale can also be adsorbed on critical parts within the system, such as the internal surfaces of the water pump and heat exchanger. Thus, the use of tap water has the following inherent disadvantages:
1) the energy efficiency of the system is reduced: when the scale is adsorbed on the inner surface of the water pump, the circulation efficiency of the water channel is reduced, and the water pump is blocked as the scale becomes thicker gradually;
2) when the scale is adsorbed on the inner wall of the heat exchanger, the heat exchange energy efficiency is gradually reduced along with the gradual accumulation of the scale;
3) after the system operates for a period of time, water flow gaps of the plate heat exchangers are partially filled with more and more accumulated water scale, when the system defrosts, the plate heat exchangers serving as evaporators expand due to expansion of the water scale at the positions filled with the water scale and damage the plate heat exchangers at the temperature greatly lower than-4 ℃ in the plate heat exchangers of the evaporators, so that the plate heat exchangers leak water, and the system is scrapped;
4) when the temperature is suddenly reduced or the power is cut off temporarily in winter, water in the system is frozen, and the unit is reported for repair or scrapped.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that prior art exists, the utility model provides an air can heat pump closed water charging system, to traditional open moisturizing case to the interior condition such as system efficiency gradual change reduction, moisturizing difficulty and the system scale deposit that leads to the fact of replenishing the running water of circulation system, simple structure is reasonable, has advantages such as difficult scale deposit, system efficiency height and moisturizing are easy, has effectively solved the drawback that traditional open moisturizing case replenished the running water.
The utility model discloses a following technical scheme specifically realizes:
the utility model discloses an air can heat pump closed water charging system, connect the structure including closed moisturizing case and dress, the closed moisturizing case passes through connect the structure connection on air can heat pump circulation system, air can heat pump circulation system includes circulating water pump, be provided with antifreeze in the closed moisturizing case, the closed moisturizing case is connected circulating water pump's the end of intaking is used for supplementing air can heat pump circulation system fluid loss during the operation.
Furthermore, an automatic exhaust valve is arranged at the top of the closed water replenishing tank.
Furthermore, a water level meter is arranged in the closed water replenishing tank.
Further, the antifreeze is an ethylene glycol aqueous solution.
Further, the air energy heat pump circulating system comprises a heat exchanger and a circulating water pump which are sequentially connected through a circulating water pipe.
The water inlet end of the heat exchanger is connected with a water return pipeline through a tee joint, the two ends of the water return pipeline are respectively a water distributor return water end and an air disc return water end, the water distributor return water end is provided with a water distributor return water ball valve, and the air disc return water end is provided with an air disc return water ball valve.
The water outlet end of the circulating water pump is connected with a water inlet pipeline through a tee joint, the two ends of the water inlet pipeline are respectively the water inlet end of the water separator and the water inlet end of the air disc, the water inlet end of the water separator is provided with a water inlet ball valve of the water separator, and the water inlet end of the air disc is provided with an air inlet ball valve of the air disc.
Further, the dress connects the structure and includes the moisturizing pipe, the upper end of moisturizing pipe with the closed moisturizing case is connected, the lower extreme of moisturizing pipe is connected the circulating water pipe, be provided with on the moisturizing pipe and be used for opening or close the moisturizing ball valve of moisturizing pipe.
Furthermore, the lower end of the water replenishing pipe is connected between the circulating water pump and the heat exchanger, and the bottom of the closed water replenishing tank is higher than the water inlet end of the circulating water pump.
Furthermore, the lower end of the water replenishing pipe is connected to the water inlet end of the heat exchanger, and the bottom of the closed water replenishing tank is higher than the upper edge of the heat exchanger.
Based on above technical scheme, the utility model discloses a technological effect does:
the utility model discloses an air can heat pump closed water charging system simple structure is reasonable, through closed moisturizing case to air can heat pump circulation system in supply antifreeze, antifreeze adopts the ethylene glycol aqueous solution, can supply circulation system fluid loss during operation, can also prevent system's scale deposit and freezing damage, has effectively guaranteed the heat transfer efficiency of system, has prolonged the life of air can heat pump.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a split air-source heat pump connected with tap water in the prior art;
FIG. 2 is a schematic structural diagram of an integrated air-source heat pump connected with tap water in the prior art;
FIG. 3 is a schematic structural diagram of a split air-source heat pump connected open makeup tank in the prior art;
FIG. 4 is a schematic structural diagram of an integrated air-source heat pump connection open-type makeup tank in the prior art;
fig. 5 is a schematic structural diagram of an air-source heat pump closed water charging system according to embodiment 1 of the present invention;
fig. 6 is a schematic structural diagram of an air-source heat pump closed water charging system according to embodiment 2 of the present invention;
fig. 7 is a schematic structural diagram of an air-source heat pump closed water charging system of embodiment 3 of the present invention.
In the figure:
1-closed water replenishing tank; 2-a circulating water pump; 3-automatic exhaust valve; 4-a water level meter; 5-a circulating water pipe; 6-a heat exchanger; 7-an internal machine; 8-a tee joint; 9-a water return pipeline; 10-a water separator return water ball valve; 11-wind disk backwater ball valve; 12-a water inlet pipeline; 13-water separator water inlet ball valve; 14-wind plate water inlet ball valve; 15-water replenishing pipe; 16-a water replenishing ball valve; 17-a water filter; 18-an outdoor unit; 19-tap water connecting pipe; 20-open water replenishing tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 5, in this embodiment, the air-source heat pump closed water replenishing system is provided, in this embodiment, the air-source heat pump is a split-type air-source heat pump, the split-type air-source heat pump includes an inner unit 7 and an outer unit 18, the air-source heat pump closed water replenishing system includes a closed water replenishing tank 1 and an attaching structure, the closed water replenishing tank 1 is connected to an air-source heat pump circulation system through the attaching structure, the air-source heat pump circulation system includes a circulating water pump 2, and an antifreeze solution is provided in the closed water replenishing tank 1, in this embodiment, the antifreeze solution is an ethylene glycol aqueous solution, and the closed water replenishing tank 1 is connected to a water inlet end of the circulating water pump 2 and is used for supplementing fluid loss during.
In this embodiment, an automatic exhaust valve 3 is disposed at the top of the closed water replenishing tank 1, a water level gauge 4 is disposed in the closed water replenishing tank 1, correspondingly, a fixing hole for installing the automatic exhaust valve 3 is disposed on the closed water replenishing tank 1, and a specific method for adding an antifreeze into the closed water replenishing tank 3 is as follows: the automatic exhaust valve 3 is unscrewed, a funnel is inserted into the fixing hole, the ethylene glycol aqueous solution is slowly poured into the funnel, and the water level gauge 4 is observed to confirm the amount of the added ethylene glycol aqueous solution.
In this embodiment, the air-source heat pump circulating system includes a heat exchanger 6 and a circulating water pump 2 connected in sequence through a circulating water pipe 5, and the heat exchanger 6 and the circulating water pump 2 are both located in the internal unit 7.
The water inlet end of the heat exchanger 6 is connected with a water return pipeline 9 through a tee joint 8, the two ends of the water return pipeline 9 are respectively a water separator water return end and an air disc water return end, the water separator water return end is provided with a water separator water return ball valve 10, and the air disc water return end is provided with an air disc water return ball valve 11.
The water outlet end of the circulating water pump 2 is connected with a water inlet pipeline 12 through a tee joint 8, the two ends of the water inlet pipeline 12 are respectively a water inlet end of a water separator and a water inlet end of an air disc, the water inlet end of the water separator is provided with a water inlet ball valve 13 of the water separator, and the water inlet end of the air disc is provided with an air inlet ball valve 14 of the air disc.
The assembly structure comprises a water replenishing pipe 15, the upper end of the water replenishing pipe 15 is connected with the closed water replenishing tank 1, the lower end of the water replenishing pipe 15 is connected with the circulating water pipe 5, and a water replenishing ball valve 16 used for opening or closing the water replenishing pipe 15 is arranged on the water replenishing pipe 15.
Optionally, the lower end of the water replenishing pipe 15 is connected between the circulating water pump 2 and the heat exchanger 6, and the bottom of the closed water replenishing tank 1 is higher than the water inlet end of the circulating water pump 2.
As a further improvement of the embodiment, a water filter 17 is further arranged at the water return end of the circulating water pipe 5, and impurities in the circulating system can be filtered.
Based on above-mentioned structure, the air energy heat pump closed water charging system of this embodiment is when specifically using:
filling antifreeze into a heating loop (a water separator loop):
1) opening a water inlet ball valve 13 and a water return ball valve 10 of the water separator, opening a water supplementing ball valve 16, and closing an air disc water inlet ball valve 14 and an air disc water return ball valve 11;
2) adding the glycol solution into the closed water replenishing tank 1 in the above manner, and suspending the addition when the liquid level reaches 4/5 of the height of the water tank;
3) starting the circulating water pump 2, lowering the liquid level in the closed water replenishing tank 1 at the moment, continuously and slowly filling the ethylene glycol solution into the closed water replenishing tank 1, stopping adding the antifreeze solution when the liquid level is basically stabilized at the height of 4/5 of the water tank, and closing the water replenishing ball valve 16, the water distributor water inlet ball valve 13 and the water distributor water return ball valve 10;
the refrigeration circuit (air disc circuit) is filled with antifreeze:
1) opening an air disc water inlet ball valve 14, keeping the air disc water return ball valve 11 closed, closing a water separator water inlet ball valve 13 and a water separator water return ball valve 10, and opening all exhaust valves of the air disc;
2) at the moment, the liquid level of the closed water replenishing tank 1 is lowered, the anti-freezing solution is continuously added into the closed water replenishing tank 1, the circulating water pump 2 is started when the liquid level is basically stabilized at the height of 4/5 of the water tank, the liquid level in the closed water replenishing tank 1 is lowered at the moment, the anti-freezing solution is continuously and slowly added into the closed water replenishing tank 1, and the anti-freezing solution is stopped when the liquid level is basically stabilized at the height of 4/5 of the water tank;
3) observing an exhaust valve of the air disc, and closing the exhaust valve of the air disc and closing the circulating water pump 2 when air is exhausted completely (water is discharged from an exhaust port of the air disc);
4) and (3) opening the fullness of the return valve 11 of the wind disk, observing the liquid level of the closed water replenishing tank 1, and indicating that the filling is finished when the liquid level of the closed water replenishing tank 1 rises within a range value due to a siphon principle.
Exhausting air in the circulating system:
1) opening the water inlet ball valve 13 of the water separator and the water return ball valve 10 of the water separator, starting the circulating water pump 2, unscrewing an exhaust bolt of the circulating water pump 2, and completely exhausting an air port in a circulating system and then screwing the exhaust bolt;
2) observing the liquid level height in the closed water replenishing tank 1, wherein the liquid level height is kept above 1/2 of the height of the water tank, and if the liquid level is lower than 1/2 of the height of the water tank, adding an anti-freezing solution into the closed water replenishing tank 1 until the liquid level height is above 1/2 of the height of the water tank;
3) the automatic exhaust valve 3 is inserted into the closed water replenishing tank 1 and screwed, and the exhaust hole of the automatic exhaust valve 3 is opened, so that liquid overflow under an unexpected condition (such as opening the exhaust hole of the air disc by mistake) can be prevented, and the automatic exhaust valve has an exhaust function.
Based on above technical scheme, the beneficial effect of the air energy heat pump closed water charging system of this embodiment is:
firstly, the closed water replenishing system of the air energy heat pump can replenish antifreeze solution into the circulating system of the air energy heat pump to replenish the loss of the circulating system in the operation;
secondly, the ethylene glycol aqueous solution is supplemented into the circulating system, so that system scaling caused by using hard water such as tap water and the like can be avoided, and the system can be scrapped after the system runs for a long time;
thirdly, compared with the situation that the highest position of the whole system needs to be arranged, which causes difficulty in implementation and water supplement addition, of the traditional open type water supplement tank, the closed type water supplement tank 1 is adopted for supplementing the water solution for the circulating system, and only the bottom of the closed type water supplement tank 1 is higher than a water inlet end of the circulating system for water supplement, so that the height requirement is reduced, the implementation is more convenient, and the water supplement is convenient;
fourthly, the added antifreeze has an antifreezing effect, and the condition that the water solution in the circulating system is frozen due to sudden temperature reduction or power failure in winter to cause system scrapping failure is avoided.
Example 2
As shown in fig. 6, in the present embodiment, the air-source heat pump is a split-type air-source heat pump, and optionally, the lower end of the water replenishing pipe 15 is connected to the water inlet end of the water separator.
Example 3
As shown in fig. 7, in the embodiment, the air-source heat pump is an integrated air-source heat pump, optionally, the lower end of the water replenishing pipe 15 is connected to a water return end of the circulation system, that is, a water inlet end of the heat exchanger 6, and the bottom of the closed water replenishing tank 1 is higher than the upper edge of the heat exchanger 6.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides an air can heat pump closed water charging system which characterized in that: the air energy heat pump circulation system comprises a closed water replenishing tank (1) and a mounting structure, wherein the closed water replenishing tank (1) is connected to the air energy heat pump circulation system through the mounting structure, the air energy heat pump circulation system comprises a circulating water pump (2), an antifreezing solution is arranged in the closed water replenishing tank (1), and the closed water replenishing tank (1) is connected to the water inlet end of the circulating water pump (2) and used for replenishing fluid loss during operation of the air energy heat pump circulation system.
2. The closed water replenishing system of the air-source heat pump according to claim 1, characterized in that: and an automatic exhaust valve (3) is arranged at the top of the closed water replenishing tank (1).
3. The closed water replenishing system of the air-source heat pump according to claim 2, characterized in that: a water level meter (4) is arranged in the closed water replenishing tank (1).
4. The closed water replenishing system of the air-source heat pump according to claim 3, characterized in that: the antifreeze is an ethylene glycol aqueous solution.
5. The closed water replenishing system of the air energy heat pump according to any one of claims 1 to 4, characterized in that: the air energy heat pump circulating system comprises a heat exchanger (6) and a circulating water pump (2) which are sequentially connected through a circulating water pipe (5);
the water inlet end of the heat exchanger (6) is connected with a water return pipeline (9) through a tee joint (8), the two ends of the water return pipeline (9) are respectively a water distributor water return end and an air disc water return end, the water distributor water return end is provided with a water distributor water return ball valve (10), and the air disc water return end is provided with an air disc water return ball valve (11);
the water outlet end of the circulating water pump (2) is connected with a water inlet pipeline (12) through a tee joint (8), the two ends of the water inlet pipeline (12) are respectively a water inlet end of a water separator and a water inlet end of an air disc, the water inlet end of the water separator is provided with a water inlet ball valve (13) of the water separator, and the water inlet end of the air disc is provided with an air inlet ball valve (14).
6. The closed water replenishing system of the air-source heat pump according to claim 5, wherein: the mounting structure comprises a water replenishing pipe (15), the upper end of the water replenishing pipe (15) is connected with the closed water replenishing tank (1), the lower end of the water replenishing pipe (15) is connected with the circulating water pipe (5), and a water replenishing ball valve (16) used for opening or closing the water replenishing pipe (15) is arranged on the water replenishing pipe (15).
7. The closed water replenishing system of the air-source heat pump according to claim 6, wherein: the lower end of the water replenishing pipe (15) is connected between the circulating water pump (2) and the heat exchanger (6), and the bottom of the closed water replenishing tank (1) is higher than the water inlet end of the circulating water pump (2).
8. The closed water replenishing system of the air-source heat pump according to claim 6, wherein: the lower end of the water replenishing pipe (15) is connected to the water inlet end of the heat exchanger (6), and the bottom of the closed water replenishing tank (1) is higher than the upper edge of the heat exchanger (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020818214.0U CN212299352U (en) | 2020-05-18 | 2020-05-18 | Closed water charging system of air energy heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020818214.0U CN212299352U (en) | 2020-05-18 | 2020-05-18 | Closed water charging system of air energy heat pump |
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| CN212299352U true CN212299352U (en) | 2021-01-05 |
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| CN202020818214.0U Active CN212299352U (en) | 2020-05-18 | 2020-05-18 | Closed water charging system of air energy heat pump |
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- 2020-05-18 CN CN202020818214.0U patent/CN212299352U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211130 Address after: 266000 No. 779, Qingwei Road, Jimo District, Qingdao City, Shandong Province Patentee after: Qingdao Zhongke Nengjiang Technology Co.,Ltd. Address before: 266000 102 households, building 1, 457 Tianjia village, Shinan District, Qingdao City, Shandong Province Patentee before: Gong Chuanan |
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| TR01 | Transfer of patent right |