CN202328909U - Frostless air source heat pump - Google Patents
Frostless air source heat pump Download PDFInfo
- Publication number
- CN202328909U CN202328909U CN201120452848XU CN201120452848U CN202328909U CN 202328909 U CN202328909 U CN 202328909U CN 201120452848X U CN201120452848X U CN 201120452848XU CN 201120452848 U CN201120452848 U CN 201120452848U CN 202328909 U CN202328909 U CN 202328909U
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- heat exchanger
- air source
- heat pump
- type coil
- pump
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Abstract
A frostless air source heat pump comprises a throttling valve, a compressor and a heat exchanger which are connected through pipelines. The heat exchanger is a copper brazing type heat exchanger provided with an evaporation region and a condensation region. The frostless air source heat pump is characterized by further comprising a hot water pot, and a sinuous coil is arranged in the hot water pot and in parallel connection with a working medium output pipe of the compressor through a temperature control by-pass valve. The frostless air source heat pump further comprises a ventilating coil heat exchanger. A water outlet of the ventilating coil heat exchanger is connected with a circulating water inlet of the heat exchanger, and a circulating water outlet of the heat exchanger is or is not connected with the hot water pot through a temperature control three-way valve and then connected with the ventilating coil heat exchanger through a circulating pump. The frostless air source heat pump is improvement of the invention patent ZL201010041816.0 'heat pump' of the applicant in the application field, and is suitable for the modern heating and refrigerating field.
Description
Technical field
The utility model relates to heat-exchange device, relates in particular to a kind of Frostless air-source heat pump.
Background technology
Air source heat pump is as a kind of energy resource system of clean and effective; Advantages such as, both cooling and heating easy for installation with it, environmental protection and energy saving obtain user's favor; Occupy suitable share in usefulness and the middle-size and small-size heating and ventilation project of being in; Especially China's southern area, owing to there is not central heating, the application of air source heat pump is more extensive.But air source has two apparent in view defectives when heating in the winter time, at first is the reduction with outside air temperature, and heating capacity and COP decay rapidly.For the decay of heating capacity, can prevent through the mode of selecting big unit, for the reduction of COP; Because southern area outside air temperature in winter generally can be too not low, the attenuation of COP is relatively limited, so; Comprehensive, this problem is not sufficient to shake the advantage of air source.Yet the main problem of air source heat pump is embodied in the defrosting of Winter heat supply.Be lower than 0 ℃ when the outdoor evaporator temperature of air source heat pump winter, and humidity is when reaching the air dew point condition, and airborne moisture will be separated out to attach and formed frost on it.The heat transfer resistance of frost layer increase heat exchanger and air has increased the wind collateral resistance simultaneously, and air mass flow reduces, and causes the indoor heating amount to decay significantly.If untimely defrosting, the thickening gradually of frost layer, whole air source heat pump evaporation device can be frozen in, and air source heat pump can't be worked.Existing air source heat pump generally adopts changes in temperature counter-rotatings, defrosts with the exhaust gas heat of compressor, simultaneously in order to ensure the indoor heating effect, all can add electric heater at indoor set.When Defrost moved, heat pump heating also stopped, only if open electrical heating, otherwise will influence indoor thermal comfort, and electrical heating itself had caused bigger energy waste.Especially during frosting was serious, the Defrost operation frequency was high, and the time is long, and air source heat pump nearly all is to lean on the electrical heating heat supply, has weakened its energy-conservation advantage greatly.So, how to solve indoor thermal comfort decline and efficiency reduction problem that air source heat pump defrosting brings, be that air source heat pump further develops the obstacle that must stride across.
Existing patent such as ZL200910098008.5 " frost-free type air source heat pump system "; ZL200610041213.4 " heat pump of Teat pump boiler "; ZL200810029789.8 " a kind of Frostless air source heat pump water heater "; ZL201010572661.3 purposes such as " intelligent air-cooled heat pump defrosting control methods " all is to solve the defrost problem of air source heat pump, but they are of limited application, and effect is desirable not enough.
Summary of the invention
To the defective that prior art exists, the utility model proposes a kind of Frostless air-source heat pump, to solve the problem of air source heat pump defrosting.
To achieve these goals, the technical scheme of the utility model is following:
A kind of Frostless air-source heat pump; Comprise choke valve, compressor and heat exchanger; They are connected by pipeline, and said heat exchanger is the copper brazing formula plate type heat exchanger with evaporating area and condensing zone, it is characterized in that also comprising hot-water cylinder; Hot-water cylinder is built-in with snake type coil pipe, and snake type coil pipe is parallelly connected through the temperature control by-passing valve with the working medium efferent duct of said compressor; Also comprise the ventilated type coil heat exchanger; The water outlet of ventilated type coil heat exchanger connects the circulating water intake of said heat exchanger, and the circulating water outlet of said heat exchanger is through the connection of temperature control triple valve or disconnect hot-water cylinder, connects the ventilated type coil heat exchanger through circulating pump again.
The utility model is the applicant's patent of invention ZL201010041816.0 " a kind of heat pump " improving and raising in its utilization field.In ZL201010041816.0 " a kind of heat pump ", introduced copper brazing formula plate type heat exchanger in detail with evaporating area and condensing zone.
Recirculated water is the water that is used to absorb the air low temperature thermal source; Be added with anti-icing fluid in the recirculated water; Recirculated water constantly circulates between ventilated type coil heat exchanger and said heat exchanger in Frostless air-source heat pump; The heat that absorbs air source at the ventilated type coil heat exchanger heats up, and takes heat to heat exchanger from the ventilated type coil heat exchanger, passes to working medium to heat in the evaporating area of heat exchanger; Remove the ventilated type coil heat exchanger after the cooling again, heat up behind the heat in absorbing air source again at the ventilated type coil heat exchanger.
When weather warms up, do not have the frosting problem, the adjusting temperature of temperature control by-passing valve and temperature control triple valve is made as 5 ℃ usually, and temperature is greater than 5 ℃, and the temperature control by-passing valve cuts out the snake type coil pipe towards hot-water cylinder, and recirculated water does not heat up in the hot-water cylinder; The circulating water outlet of heat exchanger is disconnected hot-water cylinder after connecing the temperature control triple valve, directly connects the ventilated type coil heat exchanger through circulating pump, and recirculated water removes the circulating water intake of heat exchanger after the heat in ventilated type coil heat exchanger absorbing air source heats up; When temperature drops to 5 ℃; In the time of might frosting; The temperature control by-passing valve is opened the snake type coil pipe towards hot-water cylinder, and the HTHP working medium of compressor output gets into the coil pipe that hot-water cylinder is built-in with, and gets into heat exchanger again through coil pipe; In hot-water cylinder, pass to the recirculated water in the hot-water cylinder to the part heat, circulating water temperature is raise; The recirculated water that comes out from the circulating water outlet of heat exchanger is in the temperature control triple valve gets into hot-water cylinder, and the recirculated water that temperature raises gets into the ventilated type coil heat exchanger through circulating pump again, so makes the coil pipe frost-free of ventilated type coil heat exchanger.
The advantage of the utility model is:
1. solved the problem of air source heat pump defrosting;
2. pipeline is short, and cost is low; Energy loss is few, and the refrigerant leakage probability is little;
3. simple in structure, heat exchange efficiency is high and volume is little;
A kind of Frostless air-source heat pump that the utility model provides uses proof through reality, has reached predetermined purpose, is applicable to that the modern times heat and refrigerating field.
Description of drawings
Fig. 1 is one of a utility model embodiment structural representation;
Fig. 2 is two structural representations of the utility model embodiment
In more than scheming
1Be compressor,
2Be the temperature control by-passing valve,
3Be water inlet to be heated,
4Be the ventilated type coil heat exchanger,
5Be circulating pump
, 6Be hot-water cylinder,
7Be the temperature control triple valve,
8Be circulating water outlet,
9Be choke valve
, 10Be circulating water intake, 11 is heat exchanger, and 12 is the water out that has heated, 13 working medium efferent ducts, and 14 is snake type coil pipe.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment one:
Accompanying drawing 1 has been illustrated the structure situation of one of the utility model embodiment, and a kind of Frostless air-source heat pump comprises choke valve 9, compressor 1 and heat exchanger 11; They are connected by pipeline; Said heat exchanger 11 is characterized in that also comprising hot-water cylinder 6 for having the copper brazing formula plate type heat exchanger 11 of evaporating area and condensing zone, and hot-water cylinder 6 is built-in with snake type coil pipe 14; The working medium efferent duct 13 of snake type coil pipe 14 and said compressor 1 also connects, and the feed tube of coil pipe 14 is connected to temperature control by-passing valve 2; Also comprise ventilated type coil heat exchanger 4; The water outlet of ventilated type coil heat exchanger 4 connects the circulating water intake 10 of said heat exchanger 11; The circulating water outlet 8 of said heat exchanger 11 connects or does not connect hot-water cylinder 6 through temperature control triple valve 7, connects ventilated type coil heat exchanger 4 through circulating pump 5 again.
The circulating path of working medium:
The working medium (like freon) of compressor 1 output HTHP gets into heat exchangers 11 through working medium efferent duct 13, and when temperature during less than the adjusting temperature of temperature control by-passing valve 2, temperature control by-passing valve 2 is connected the snake type coil pipe 14 that leads to hot-water cylinder; The working medium of part HTHP gets into coil pipe 14; Behind hot-water cylinder 6 heat cycles water, get into heat exchanger 11 again, get into heat exchanger 11 condensing zones liquefaction heat release, come out from the outlet of heat exchanger 11 liquefaction working medium then; After expansion valve 9 decompressions, get into heat exchanger 11 again; In evaporating area evaporation heat absorption, the sender property outlet after the evaporation goes the air entry of compressor 1, circulation so again and again.
Water to be heated gets into heat exchangers 11 from water inlet to be heated 3, absorbs the working medium liberated heat at the condensing zone of heat exchanger 11, after the intensification, from the water out 12 that has heated the end that goes out to make a return journey.
When temperature dropped to the temperature of possible frosting, because temperature control by-passing valve 2 is opened, the HTHP working medium of compressor 1 output got into the coil pipe 14 that hot-water cylinder 6 is built-in with, and in hot-water cylinder 6, passes to recirculated water to the part heat, and circulating water temperature is raise; The recirculated water that comes out from the circulating water outlet 8 of heat exchanger 11 gets in the hot-water cylinders 6 through temperature control triple valve 7; The recirculated water that temperature raises gets into ventilated type coil heat exchanger 4 through circulating pump 5 again; The temperature of ventilated type coil pipe evaporation heat-exchanger 4 is raise, walk around the frosting temperature and realize heating frost-free.
Embodiment two:
Accompanying drawing 2 has been illustrated two the structure situation of the utility model embodiment, and snake type coil pipe 14 is parallelly connected through temperature control by-passing valve 2 with the working medium efferent duct 13 of said compressor 1; Said temperature control by-passing valve 2 is temperature control triple valve 2, and other structure situation with one of embodiment is identical.
Claims (1)
1. Frostless air-source heat pump; Comprise choke valve (9), compressor (1) and heat exchanger (11); They are connected by pipeline, and said heat exchanger (11) is characterized in that also comprising hot-water cylinder (6) for having the copper brazing formula plate type heat exchanger (11) of evaporating area and condensing zone; Hot-water cylinder (6) is built-in with snake type coil pipe (14), and snake type coil pipe (14) is parallelly connected through temperature control by-passing valve (2) with the working medium efferent duct (13) of said compressor (1); Also comprise ventilated type coil heat exchanger (4); The water outlet of ventilated type coil heat exchanger (4) connects the circulating water intake (10) of said heat exchanger (11); The circulating water outlet (8) of said heat exchanger (11) connects or does not connect hot-water cylinder (6) through temperature control triple valve (7), connects ventilated type coil heat exchanger (4) through circulating pump (5) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120452848XU CN202328909U (en) | 2011-11-16 | 2011-11-16 | Frostless air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120452848XU CN202328909U (en) | 2011-11-16 | 2011-11-16 | Frostless air source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202328909U true CN202328909U (en) | 2012-07-11 |
Family
ID=46440890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120452848XU Expired - Fee Related CN202328909U (en) | 2011-11-16 | 2011-11-16 | Frostless air source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202328909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393100A (en) * | 2011-11-16 | 2012-03-28 | 贵州循元生态能源科技有限公司 | Frost-free air source heat pump |
| CN104707440A (en) * | 2013-12-16 | 2015-06-17 | 北京正拓气体科技有限公司 | Gas condensation dehydration device and condensation dehydration method |
-
2011
- 2011-11-16 CN CN201120452848XU patent/CN202328909U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393100A (en) * | 2011-11-16 | 2012-03-28 | 贵州循元生态能源科技有限公司 | Frost-free air source heat pump |
| CN104707440A (en) * | 2013-12-16 | 2015-06-17 | 北京正拓气体科技有限公司 | Gas condensation dehydration device and condensation dehydration method |
| CN104707440B (en) * | 2013-12-16 | 2016-08-31 | 北京正拓气体科技有限公司 | Gas condensation dehydration device and condensation dehydration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |