CN203595285U - Pressure relief device of directly-heated type heat-pump water heater - Google Patents
Pressure relief device of directly-heated type heat-pump water heater Download PDFInfo
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- CN203595285U CN203595285U CN201320738196.5U CN201320738196U CN203595285U CN 203595285 U CN203595285 U CN 203595285U CN 201320738196 U CN201320738196 U CN 201320738196U CN 203595285 U CN203595285 U CN 203595285U
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- pressure
- pressure relief
- directly
- heated type
- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 19
- 239000007788 liquid Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model relates to a pressure relief device of a directly-heated type heat-pump water heater. When a heat-pump water heater in the prior art is in heat conversion and water inlet temperature and water pressure change instantaneously, as a flow adjusting valve gives a response in a certain period, instantaneous flow cannot meet the requirement, system pressure increases, and high pressure protection of a system is caused easily. The pressure relief device of the directly-heated type heat-pump water heater comprises a second heat exchanger, wherein the second heat exchanger is provided with a water inlet pipe and a water outlet pipe. The pressure relief device of the directly-heated type heat-pump water heater is characterized by further comprising a pressure controller, a solenoid valve and a pressure relief pipe, the pressure controller is used for detecting pressure of the second heat exchanger and controlling the solenoid valve to be switched on and switched off, the solenoid valve controls the pressure relief pipe to be opened and closed, the pressure relief pipe is connected to the water inlet pipe in parallel, the solenoid valve is arranged on the pressure relief pipe, and the pressure controller is arranged on a pipeline through which refrigerating fluid flows into the second heat exchanger. The pressure relief device of the directly-heated type heat-pump water heater is simple in structure and reasonable in design, pressure of the system is effectively relieved due to use of the pressure controller, the solenoid valve and the pressure relief pipe, and safety is guaranteed.
Description
Technical field
The utility model relates to a kind of pressure relief device of directly-heated type Teat pump boiler.
Background technology
Teat pump boiler is that a kind of efficient heat energy promotes and transfer device, and it utilizes a small amount of electric energy as power, can, by the transfer of heat of low-temperature heat source in the water of needs heating, realize the heating function to water.When Teat pump boiler is changed in heat, in the time of inflow temperature, hydraulic pressure instantaneous variation, due to the flow control valve reaction needed regular hour, easily cause moment flow not reach requirement, cause system pressure to rise, easily cause system high pressure protection.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, and release is effective, uses the pressure relief device of safe directly-heated type Teat pump boiler.
The technical scheme in the invention for solving the above technical problem is: the pressure relief device of this directly-heated type Teat pump boiler, comprise heat exchanger No. two, described No. two heat exchangers are provided with water inlet pipe and outlet pipe, it is characterized in that: also comprise for detection of No. two heat exchanger pressure and control magnetic valve open and close pressure controller, for control relief tube open and close magnetic valve and relief tube, described relief tube is connected in parallel on water inlet pipe, described magnetic valve is arranged on relief tube, and described pressure controller is arranged on the pipeline of No. two heat exchangers of cold-producing medium inflow.In the time of inflow temperature, hydraulic pressure instantaneous variation, due to the flow control valve reaction needed regular hour, easily cause moment flow not reach requirement, pressure controller will detect the pressure of the pipeline that connects C joint and No. two heat exchangers, in the time that pressure reaches setting value, pressure controller will be opened magnetic valve, makes relief tube circulation, thereby increase water circulation amount, therefore can effectively reduce system pressure; In the time that system pressure drops to recovery value, magnetic valve cuts out automatically.
Water inlet pipe described in the utility model is provided with flow control valve, and relief tube two ends are connected in respectively the both sides of flow control valve.When system pressure change and for reach set value time, the flow of water inlet pipe regulates by flow control valve.
The utility model compared with prior art, has the following advantages and effect: simple in structure, reasonable in design, by the use of pressure controller, magnetic valve and relief tube, can effectively carry out release to system, and guarantee safety.
Accompanying drawing explanation
Fig. 1 is the structure flow chart of the pressure relief device of directly-heated type Teat pump boiler in the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1, the pressure relief device of the directly-heated type Teat pump boiler in the present embodiment comprises compressor 1, cross valve 2, heat exchanger 3, reservoir 4, No. two heat exchangers 5, gas-liquid separator 6, pressure controller 7, magnetic valve 8, relief tube 9, expansion valve 10, blower fan 11 and flow control valves 12.A heat exchanger 3 in the present embodiment is finned heat exchanger, is provided with blower fan 11 on finned heat exchanger.
No. two heat exchangers 5 in the present embodiment are provided with water inlet pipe 51, outlet pipe 52, refrigerant inlet 53, refrigerant outlet 54, reservoir 4 is provided with inlet 41 and liquid outlet 42, cross valve 2 is provided with D interface, C interface, E interface and S interface, D interface is communicated with C interface, S interface is communicated with E interface, compressor 1 is connected with the D interface of cross valve 2, the C joint of cross valve 2 is connected with the refrigerant inlet 53 of No. two heat exchangers 5, the inlet 41 of reservoir 4 is connected with the refrigerant outlet 54 of No. two heat exchangers 5, the water inlet pipe 51 of No. two heat exchangers 5 is provided with flow control valve 12, the liquid outlet 42 of reservoir 4 is connected with a heat exchanger 3, connect the liquid outlet 42 of reservoir 4 and the pipeline of a heat exchanger 3 and be provided with expansion valve 10, No. one heat exchanger 3 is connected with the E interface of cross valve 2, the S interface of cross valve 2 is connected with gas-liquid separator 6, gas-liquid separator 6 is connected with compressor 1, between above-mentioned interconnected structure, all connect by pipeline, form whole cold-producing medium flow process loop, relief tube 9 two ends are connected in respectively the both sides of flow control valve 12 and are communicated with the water inlet pipe 51 of No. two heat exchangers 5, and magnetic valve 8 is arranged on relief tube 9, and pressure controller 7 is arranged on the pipeline that connects C joint and No. two heat exchangers 5.
The operation principle of refrigerant circulation flow process: 1, compressor 1 sucks low-temperature low-pressure refrigerant gas from gas-liquid separator 6, discharges high-temperature high-pressure refrigerant gas through overcompression from compressor 1; 2, high-temperature high-pressure refrigerant gas flows to cross valve 2 and enters heat exchanger 5 No. two, high-temperature high-pressure refrigerant gas is No. two heat exchanger 5 internal condensation Cheng Zhongwen high pressure refrigerant liquid, water enters and flows out from outlet pipe 52 from water inlet pipe 51, and water and No. two exchanger heats 5 exchange during this time; 3, warm high pressure refrigerant liquid flowing out from No. two heat exchangers 5, flows into reservoir 4 inlets 41, then from from the liquid outlet 42 of reservoir 4 flows out, through expansion valve 10 throttlings, becomes low-temperature low-pressure refrigerant liquid; 4, low-temperature low-pressure refrigerant liquid flows into a heat exchanger 3, and now blower fan 11 is in "on" position, and low-temperature low-pressure refrigerant liquid evaporates in a heat exchanger 3, absorbs airborne heat and becomes low-temperature low-pressure refrigerant gas; 5, the low-temperature low-pressure refrigerant gas that heat exchanger 3 flows out, the cross valve 2 of flowing through enters gas-liquid separator 6; Last low-temperature low-pressure refrigerant gas reenters compressor 1, so circulation.
The operation principle of water circulation flow process: cold water enters from the water inlet pipe 51 of No. two heat exchangers 5, flow to heat exchanger 5 No. two, flow out from outlet pipe 52 again, current are in the time of No. two heat exchangers 5, the heat release in the time of No. two heat exchanger 5 internal condensation Cheng Zhongwen high pressure refrigerant liquid of high-temperature high-pressure refrigerant gas, and cold water is heated, thereby flow out hot water for use.
In addition, it should be noted that, the specific embodiment described in this description, shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the utility model structure and the explanation of accompanying drawing example.All equivalence variation or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (2)
1. the pressure relief device of a directly-heated type Teat pump boiler, comprise heat exchanger No. two, described No. two heat exchangers are provided with water inlet pipe and outlet pipe, it is characterized in that: also comprise for detection of No. two heat exchanger pressure and control magnetic valve open and close pressure controller, for control relief tube open and close magnetic valve and relief tube, described relief tube is connected in parallel on water inlet pipe, described magnetic valve is arranged on relief tube, and described pressure controller is arranged on the pipeline of No. two heat exchangers of cold-producing medium inflow.
2. the pressure relief device of directly-heated type Teat pump boiler according to claim 1, is characterized in that: described water inlet pipe is provided with flow control valve, and relief tube two ends are connected in respectively the both sides of flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738196.5U CN203595285U (en) | 2013-11-21 | 2013-11-21 | Pressure relief device of directly-heated type heat-pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738196.5U CN203595285U (en) | 2013-11-21 | 2013-11-21 | Pressure relief device of directly-heated type heat-pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595285U true CN203595285U (en) | 2014-05-14 |
Family
ID=50676163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738196.5U Expired - Lifetime CN203595285U (en) | 2013-11-21 | 2013-11-21 | Pressure relief device of directly-heated type heat-pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595285U (en) |
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2013
- 2013-11-21 CN CN201320738196.5U patent/CN203595285U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Haiyan County, Jiaxing city of Zhejiang Province in 314300 Haicheng Town Road No. 468 Patentee after: ZHEJIANG CHUANGNENG NEW ENERGY CO.,LTD. Address before: 314308 Industrial Park, Haiyan County, Zhejiang, Jiaxing Patentee before: ZHEJIANG CEN NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |