CN101514845A - Novel efficient high temperature air-source heat pump hot water unit - Google Patents
Novel efficient high temperature air-source heat pump hot water unit Download PDFInfo
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- CN101514845A CN101514845A CNA2009101164050A CN200910116405A CN101514845A CN 101514845 A CN101514845 A CN 101514845A CN A2009101164050 A CNA2009101164050 A CN A2009101164050A CN 200910116405 A CN200910116405 A CN 200910116405A CN 101514845 A CN101514845 A CN 101514845A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000008400 supply water Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The invention discloses a novel efficient high temperature air-source heat pump hot water unit, comprising a refrigeration system consisting of a compressor, a wind-side heat exchanger, a fan, a capillary and a water-side heat exchanger. The medium of the refrigeration system can exchange heat with the circulating water in the water system in the water-side heat exchanger. The water system includes a water inlet pipe communicating with the water-side heat exchanger, a water outlet pipe and a water tank. The refrigeration system is further provided with a backheat exchanger, two solenoid valves and a check valve so as to achieve the independent operation of the wind-side heat exchanger or the serial operation between the wind-side heat exchanger and the backheat exchanger via the switching operation of the two solenoid valves. The invention has advantages of wide work range, rapid temperature regulation, stable operation, high water heating efficiency; high water supply temperature, stability, convenience and reliability; compact water storage tank, low cost and less energy consumption for keeping temperature.
Description
Technical field:
The present invention relates to a kind of new and effective temperature air-source heat pump hot water group, particularly relate to a kind of energy high temperature and heat water, reliable heat supply water, low capacity high temperature water storage and circulation insulation, the low directly-heated type air-source heat pump hot water group of encircling warm stable operation.
Background technology:
Mostly existing air-source heat pump hot water group is to be made up of compressor, air side heat exchanger, blower fan, water-side heat, restricting element, cold-producing medium R22, intelligence control system and corresponding water system.Its operation principle is that cold-producing medium R22 evaporates the airborne heat of absorption in air side heat exchanger, and compressed machine compression back condensation heat release in water-side heat is discharged into the heat that absorbs in the water system, provides the domestic hot-water to the user.This water mode COP value that heats is high, energy-conserving and environment-protective, and overall economic efficiency is good.
According to the difference of water system mode of heating, existing air-source heat pump hot water group roughly is divided into two kinds of circulation heated type and directly-heated types: the operation principle of circulation heated type as shown in Figure 2; Heaterless operation principle as shown in Figure 3.
The advantage of circulation heated type air-source heat pump hot water group is to supply water simply, reliable, and storage tank adopts the pressure-bearing type structure, relies on the pressure of running water that the hot water in the water tank is extruded during use, and running water is consistent with the heat hydraulic pressure, and it is easy to mix the water capacity; Saved supply-water pump and control system thereof, reduced the design cost of unit and used energy consumption.But because there is following outstanding problem in existing R22 refrigeration system self:
One, leaving water temperature is limited, can not satisfy high water temperature requirement
Existing circulation heated type refrigeration system has a limit value to condensation temperature, so the water tank final temperature of circulation heated type air-source heat pump hot water group can not surpass a certain limiting value (being generally 55 ℃), when temperature surpasses this value, the pressure and temperature of unit sharply raises, unit cisco unity malfunction even cause the accident.
Two, the water tank temperature fluctuation is big, reduces the dischargeable capacity of water tank, the comfortableness that influence is used
The moisturizing of circulation heated type air-source heat pump hot water group is directly in water tank, make water temperature reach instructions for use gradually through unit circulation heating again, when this just causes unit just to open, the water tank water temperature is very low, along with the operation water temperature of unit raises gradually, reach instructions for use up to water temperature, thereby the stand-by period is longer.In addition, in use be the guaranteed water level requirement, cold water is directly mended water tank and is mixed with high-temperature water in the water tank, makes the decline of water tank water temperature, finally can not use.Existing water tank available heat water use efficiency has only about 50%, the comfortableness that influence is used.
What directly-heated type air-source heat pump hot water group adopted is that cold water advances the mode of heating that hot water goes out, and by electronic expansion valve regulation discharge, it is exactly that high-temperature-hot-water directly arrives attemperater that cold water comes out through unit, so there is not circulating above-mentioned drawback.And under identical leaving water temperature, the condensing pressure of unit is low, and efficient is higher.But this mode also has its inadequate natural endowment:
One, storage tank is an open architecture, and the heat hydraulic pressure in the water tank is an atmospheric pressure; Through the unit heating, the high-temperature-hot-water that comes out directly arrives attemperater to running water earlier; During use, the hot water that extracts in the attemperater by supply-water pump mixes with running water to the use side, and the benefit of this mode is the temperature of hot water side, stability of flow; The rate of thermal water utilization height can reach 100% in theory.But in use there is major defect:
1, the supply-water pump of existing unit mostly is the constant speed booster pump, and lift is bigger, and the water supply state is unadjustable, and mixed water difficulty even hot water pour in down a chimney into the running water pipe network when tap water pressure is low.As adopt variable frequency pump, and then control is complicated, and cost is too high.
2, existing unit is only by the opening/stop of a pressure switch control supply-water pump, particularly: when exit of pump pressure is lower than certain value, water pump is opened; When exit of pump pressure is higher than certain value, water pump is shut down.This force value can not be changed, so adaptability is very poor once determining.If it is higher that the high-voltage value that the control water pump is shut down is set, water pump (, water pump low such as user's voltage uses decrease in efficiency of a specified duration etc.) pump of may not cutting off the water in some cases then; As control high-voltage value that water pump shuts down and set on the low sidely, indefinite because of the grid resistance of user side, then water pump may frequent start-stop, can not normal water supply.
3, the volume of supply-water pump, weight, power consumption are all bigger, the design cost of unit and use cost height.
Two, under low in the winter time ring temperature, the low water temperature condition, because it is the decay of the heating capacity of unit is bigger,, very little through the discharge of unit for obtaining high water temperature, degree of regulation to electric expansion valve has proposed requirements at the higher level, and machine can not reach the stable water state that goes out at short notice.In the start-up course, for avoiding machine pressure excessive, the discharge amplitude of accommodation is big, adds the heat loss of cold machine, can sneak into a large amount of cold water in the water tank, influences follow-up water storage process; The leaving water temperature fluctuation is big, the cycle is long, even water temperature does not also reach setting value when water tank system full water.
For satisfying instructions for use, above-mentioned two kinds of form air-source heat pump hot water groups all need to be equipped with large water tank, and adopt the heat pump cycle heating to be incubated, and the drawback of bringing thus is: 1, cost height; 2, installing space is limited; 3, water storage is temperature limited; 4, water tank heat preserving need consume more energy.
Summary of the invention:
For overcoming the defective of prior art, the object of the present invention is to provide a kind of new and effective temperature air-source heat pump hot water group, realize that the high temperature of unit heats water, reliable heat supply water, the warm stable operation of low ring, low capacity high temperature water storage and circulation insulation.
Technical solution problem of the present invention adopts following technical scheme:
A kind of new and effective temperature air-source heat pump hot water group, comprise the refrigeration system of forming by compressor, air side heat exchanger, blower fan, capillary one, water-side heat, the medium of refrigeration system and the recirculated water of water system are finished heat exchange in water-side heat, described water system comprises water inlet pipe, outlet pipe and the water tank that is communicated with water-side heat, Returning heat-exchanger, two magnetic valves and check valve are set in described refrigeration system, realize the tandem working of working independently of air side heat exchanger or air side heat exchanger and Returning heat-exchanger with the conversion work of two magnetic valves.
Be provided with the pressure at expulsion switch in the described refrigeration system,, send the work that instruction stops compressor to system when the pressure at expulsion switch reaches when setting value at system pressure.
Described water tank is a bearing type water tank, and the water inlet and the delivery port of water tank are respectively arranged with temperature sensor, the compressor in described temperature sensor and the refrigeration system and two magnetic valve interlocks.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The invention has the advantages that: 1, the unit working range is wide, and leaving water temperature can be set arbitrarily; 2, stable and reliable operation under the condition of low in the winter time water temperature, low ring temperature: can obtain high leaving water temperature rapidly, the compression ratio that can keep compressor is in normal range (NR) again, prolonged unit service life; 3, adopt the novel pressure-bearing water tank, utilize the tap water pressure hot-water supply, cold/hot water can mix arbitrarily, the rate of thermal water utilization height, and system cost is low; 4, the high water temperature circulation of storage tank insulation, storage tank Miniaturizable, the insulation energy consumption that help reducing cost, save installing space, reduces storage tank have been realized.
Description of drawings:
Fig. 1 is working principle of said set figure of the present invention.
Fig. 2 is the fundamental diagram of existing circulation heated type unit.
Fig. 3 is the fundamental diagram of existing directly-heated type unit.
Fig. 4 is the structural representation of baffle plate type water tank.
The structural representation of Fig. 5 spiral plate type water tank.
Fig. 6 is the control program flow chart of unit of the present invention.
Number in the figure: 1 compressor, 2 air side heat exchangers, 3 blower fans, 4 capillaries one, 44, capillary two, 5 water-side heats, 6 water inlet pipes, 7 outlet pipes, 8 water tanks, 9 Returning heat-exchangers, 10 magnetic valves, one, 11 magnetic valve, two, 12 check valves, 13 pressure at expulsion switches, 14 temperature sensors, one, 15 temperature sensor, two, 16 water circulating pumps, 17 flow control valves, 18 inner water tanks, 19 heat-insulation layers, 20 cold water pipes, 21 hot-water lines, 22 fixed bars, 23 deflection plates, 24 deflectors.
Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.
The specific embodiment,
Non-limiting examples is as described below:
Embodiment: Fig. 1, shown in 6, the air-source heat pump hot water group of present embodiment, comprise by compressor 1, air side heat exchanger 2, blower fan 3, capillary 1, the refrigeration system that water-side heat 5 is formed, the medium of refrigeration system and the recirculated water of water system are finished heat exchange in water-side heat 5, described water system comprises the water inlet pipe 6 that is communicated with water-side heat 5, outlet pipe 7 and water tank 8, Returning heat-exchanger 9 is set in described refrigeration system, magnetic valve 1, magnetic valve 2 11 and check valve 12, under the normal temperature operating mode, magnetic valve 1 cuts out, magnetic valve 2 11 is opened, high temperature, the cold-producing medium R22 of high pressure is discharged by compressor 1, condensation heat release in water-side heat 5 through evaporating after capillary 1 and capillary 2 44 step-downs, absorbs airborne heat in air side heat exchanger 2, return compressor 1 recompression, form a circulation; Under worst cold case, high water temperature circulate situations such as being incubated, needing high leaving water temperature, magnetic valve 1 is opened, magnetic valve 2 11 cuts out, the cold-producing medium R22 of high temperature, high pressure is discharged by compressor 1, heat release in water-side heat 5 and Returning heat-exchanger 9, through after the heat absorption, returning compressor 1 recompression in air side heat exchanger 2 and the Returning heat-exchanger 9 after capillary one 4 step-downs, form a circulation.
Shown in Figure 1, between compressor 1 and water-side heat 5, be provided with pressure at expulsion switch 13, when the pressure at expulsion switch reaches when setting value at system pressure, send the work that instruction stops compressor to system.
In specifically being provided with, water tank 8 is a bearing type water tank, and the water inlet of water tank and delivery port are respectively arranged with temperature sensor 1 and temperature sensor 2 15, during use, unit open/stop and water tank heat preserving by two temperature sensors and the design temperature control of water tank; Water circulating pump 16 on the water inlet pipe and compressor interlock; The flow control valve 17 in water circulating pump exit enters discharge in the water-side heat in order to control.
Shown in Fig. 4,5, water tank adopts pressure-bearing type, is divided into two kinds of baffle plate type and spiral plate types, and the baffle plate type water tank in the inner water tank 18 with heat-insulation layer 19, is provided with the bottom that cold water outlet is positioned at inner water tank as shown in Figure 4, and the hot water mouth is positioned at the top of inner water tank; On the sidewall of the left and right sides of inner water tank, deflection plate 23 is set respectively, two neighbouring deflection plates divide on the position that is in the first from left right side in inner water tank, water stream channel is formed between two adjacent deflection plates, and is formed on the circuitous type runner between the sidewall of the outward flange of deflection plate and inner water tank.The corresponding structure setting also comprises: in order to impel the even propelling of current in water stream channel, by hot water mouth and cold water outlet, level is inserted with hot-water line 21 and cold water pipe 20 in inner water tank respectively, along the axial distribution gully-hole of described hot-water line 21, along the axial distribution tapping hole of described cold water pipe 20.
For the ease of fixing, in inner water tank, vertical fixed bar 22 is set respectively corresponding to the deflection plate of the left and right sides, deflection plate 23 is able to axial location on fixed bar 22, avoid play.
The spiral plate type water tank as shown in Figure 5, press-bearing water tank inner bag 18 is set for having the cylinder of heat-insulation layer 19, in the press-bearing water tank inner bag of cylinder, around the axis of cylinder in the shape of a spiral shape deflector 24 is set, cold water outlet is arranged on the bottom sidewall of press-bearing water tank inner bag, be arranged in the bottom of deflector; The hot water mouth is arranged on the top sidewall of press-bearing water tank inner bag, be arranged in the top layer of deflector; Between cold water outlet and hot water mouth, form the spirality water stream channel along deflector.The corresponding structure setting also comprises: in order to impel the even propelling of current in water stream channel, in hot water mouth and cold water outlet, radially be inserted with hot-water line 21 and cold water pipe 20 along the press-bearing water tank inner bag, and, along the axial distribution gully-hole of described hot-water line 21, along the axial distribution tapping hole of described cold water pipe 20.For the ease of fixing, in the central authorities of press-bearing water tank inner bag, vertical fixed bar 22 is set, deflector 24 forms axial location around fixed bar 18, avoids play.
Claims (3)
1, a kind of new and effective temperature air-source heat pump hot water group, comprise by compressor (1), air side heat exchanger (2), blower fan (3), capillary one (4), the refrigeration system that water-side heat (5) is formed, the medium of refrigeration system and the recirculated water of water system are finished heat exchange in water-side heat (5), described water system comprises the water inlet pipe (6) that is communicated with water-side heat (5), outlet pipe (7) and water tank (8), it is characterized in that, Returning heat-exchanger (9) is set in described refrigeration system, two magnetic valves (10,11) and check valve (12), realize the tandem working of working independently of air side heat exchanger (2) or air side heat exchanger (2) and Returning heat-exchanger (9) with the conversion work of two magnetic valves.
2, a kind of new and effective temperature air-source heat pump hot water group according to claim 1, it is characterized in that, be provided with pressure at expulsion switch (13) in the described refrigeration system,, send instruction to system and stop the work of compressor (1) when the pressure at expulsion switch reaches when setting value at system pressure.
3, a kind of new and effective temperature air-source heat pump hot water group according to claim 1, it is characterized in that, described water tank (8) is a bearing type water tank, the water inlet of water tank and delivery port are respectively arranged with temperature sensor (14,15), the compressor in described temperature sensor and the refrigeration system (1) and two magnetic valves (10,11) interlock.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101164050A CN101514845B (en) | 2009-03-25 | 2009-03-25 | Novel efficient high temperature air-source heat pump hot water unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101164050A CN101514845B (en) | 2009-03-25 | 2009-03-25 | Novel efficient high temperature air-source heat pump hot water unit |
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| CN101514845A true CN101514845A (en) | 2009-08-26 |
| CN101514845B CN101514845B (en) | 2011-11-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109220A (en) * | 2011-04-06 | 2011-06-29 | 张伟 | Instant-heating air source water heater and control method thereof |
| CN102235746A (en) * | 2010-04-30 | 2011-11-09 | 浙江康泉电器有限公司 | Quick water heating device for heat pump |
| CN106895586A (en) * | 2015-12-21 | 2017-06-27 | 上海沃迪自动化装备股份有限公司 | A kind of hot water manufactures temperature-controlling system |
| CN111336721A (en) * | 2020-02-29 | 2020-06-26 | 同济大学 | Air source heat pump air conditioner and heat pump water heater combined operation system |
| CN112902512A (en) * | 2021-02-07 | 2021-06-04 | 中国地质科学院水文地质环境地质研究所 | Sleeve type condenser low-temperature constant-temperature system and using method thereof |
-
2009
- 2009-03-25 CN CN2009101164050A patent/CN101514845B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235746A (en) * | 2010-04-30 | 2011-11-09 | 浙江康泉电器有限公司 | Quick water heating device for heat pump |
| CN102235746B (en) * | 2010-04-30 | 2014-05-21 | 浙江康泉电器有限公司 | Quick water heating device for heat pump |
| CN102109220A (en) * | 2011-04-06 | 2011-06-29 | 张伟 | Instant-heating air source water heater and control method thereof |
| CN102109220B (en) * | 2011-04-06 | 2013-06-12 | 张伟 | Instant-heating air source water heater and control method thereof |
| CN106895586A (en) * | 2015-12-21 | 2017-06-27 | 上海沃迪自动化装备股份有限公司 | A kind of hot water manufactures temperature-controlling system |
| CN111336721A (en) * | 2020-02-29 | 2020-06-26 | 同济大学 | Air source heat pump air conditioner and heat pump water heater combined operation system |
| CN112902512A (en) * | 2021-02-07 | 2021-06-04 | 中国地质科学院水文地质环境地质研究所 | Sleeve type condenser low-temperature constant-temperature system and using method thereof |
| CN112902512B (en) * | 2021-02-07 | 2022-09-23 | 中国地质科学院水文地质环境地质研究所 | Sleeve type condenser low-temperature constant-temperature system and using method thereof |
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| Publication number | Publication date |
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| CN101514845B (en) | 2011-11-23 |
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Effective date of registration: 20190916 Address after: 239000 No. 588, Shanghai Road, Chengdong Industrial Park, Anhui, Chuzhou Patentee after: CHINA YANGZI GROUP CHUZHOU YANGZI AIR CONDITIONER Co.,Ltd. Address before: 239000 Chengdong Industrial Zone, Anhui City, Chuzhou Province Patentee before: Chuzhou Yangzi Biwei Central Air Conditioning Co.,Ltd. |
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Address after: 239000 No. 588, Shanghai Road, Chengdong Industrial Park, Anhui, Chuzhou Patentee after: Anhui Yangzi Air Conditioning Co.,Ltd. Address before: 239000 No. 588, Shanghai Road, Chengdong Industrial Park, Anhui, Chuzhou Patentee before: CHINA YANGZI GROUP CHUZHOU YANGZI AIR CONDITIONER Co.,Ltd. |
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Effective date of registration: 20240423 Address after: No. 180 Langya Road, Chuzhou City, Anhui Province, 239000 (West 4th Floor, Chuzhou Grand Theater) Patentee after: Chuzhou Modern Industry Investment and Development Co.,Ltd. Country or region after: China Address before: 239000 Shanghai Road, Chengdong Industrial Park, Chuzhou, Anhui, 588 Patentee before: Anhui Yangzi Air Conditioning Co.,Ltd. Country or region before: China |
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