CN203413822U - Heat pump machine set for providing hot water and floor heating through low-temperature air source - Google Patents

Heat pump machine set for providing hot water and floor heating through low-temperature air source Download PDF

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Publication number
CN203413822U
CN203413822U CN201320427679.3U CN201320427679U CN203413822U CN 203413822 U CN203413822 U CN 203413822U CN 201320427679 U CN201320427679 U CN 201320427679U CN 203413822 U CN203413822 U CN 203413822U
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CN
China
Prior art keywords
condenser
heating
pipeline
temperature
water
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Expired - Fee Related
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CN201320427679.3U
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Chinese (zh)
Inventor
丁德华
毛平
王艺静
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SICHUAN SHUANGYI INDUSTRY Co Ltd
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SICHUAN SHUANGYI INDUSTRY Co Ltd
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Abstract

The utility model relates to a heat pump machine set for providing hot water and floor heating through a low-temperature air source. A four-way valve is connected to a pipeline between the outlet end of a compressor and the inlet end of a condenser; a solution storage tank and a filter are connected to a pipeline between the outlet end of the condenser and a system refrigerant inlet of an economizer in sequence; a second thermal expansion valve is arranged on a pipeline between a system refrigerant outlet of the economizer and the inlet end of an evaporator; the four-way valve and a separator are connected to a pipeline between the output end of the evaporator and the inlet end of the compressor in sequence, so that a closed refrigerant circulation system is finally formed; the condenser comprises a first condenser and a second condenser; the first condenser is used for heating cold water in an insulated water tank; the second condenser is used for heating cold water in a heating and radiating pipe. According to the heat pump machine set, the requirements of hot water supply and heating in a low-temperature condition are met, the excessive consumption of primary energy resources when heat energy is required in winter is reduced, the air quality is improved, and the pollution discharge is reduced.

Description

A kind of low-temperature air source provides the source pump of hot water and floor heating
Technical field
The utility model relates to a kind of source pump, especially relates to a kind of source pump of carrying out hot water and floor heating by low-temperature air source.
Background technology
In the northern area of China, heating and domestic hot-water are a kind of most basic demands during people live, in the winter time under low temperature environment, people's heating generally provides thermal source by municipal boiler combustion coal, namely so-called central heating, domestic hot-water obtains by burnt gas wall hanging furnace, coal furnace, electric heater, and some local employing solar energy+electric heater supports the use and obtains domestic hot-water.The relatively low radiator heat supply of heating most of use cost in the north, is switched in radiator by the hot water that municipal pipeline is carried, and hot water, when radiator internal flow, reaches the requirement of heating by the cast iron appearance heat loss through radiation of radiator.Generally, to the having relatively high expectations of water temperature, minimum temperature is difficult for lower than 65 ℃.Just can reach the requirement of local heat supply.
The winter in the north, hot water was by coal burning water heater under low temperature environment, and gas heater, electric heater, solar water heater provide domestic hot-water, and heating also provides by municipal central heating mode, and this mode has following weak point in northern heat supply:
1, by coal combustion, combustion gas, obtain hot water and heating consumes a large amount of primary energy, produce CO simultaneously 2isothermal chamber gas, is the arch-criminal of greenhouse effects, produces nitride and sulfide and causes the disasters such as acid rain, and mist despot weather, can often appear northerly winter in serious environment pollution, and people's life has been produced to direct impact.
2, by electric heater, obtain hot water or heating, the calorific value producing due to the every degree electricity of electric energy is 860 kilocalories, and the effective thermal efficiency of electric heater is up to 95%, and the calorific value that every degree electricity produces is too small, thereby adopting electric energy to obtain domestic hot-water at low temperature environment, energy consumption is very large.It is water heater processing hot water that family adopts, and almost can take the over half of whole power consumption.On the other hand, a large amount of employings of electric heater can cause the load of national grid to be difficult to meet.Affect the benign development of whole national economy.
3, adopt solar water heater to obtain hot water or heating, because the principle of solar energy processing hot water is that silicon by solar pipe inwall absorbs sunshine and carrys out processing hot water, because solar energy is easily affected by environment, at cloudy day, rainy day, night, without sunshine in the situation that, solar energy can not provide stable hot water.Under low temperature environment, because nocturnal temperature is lower, the water for cooling in solar pipe congeals into ice, and volume increases, and just easily causes solar energy booster.Thereby solar water heater generally all can adopt and increase auxiliary heating equipment, if boiler, electric heater etc. are as standby.
Summary of the invention
The utility model has designed the source pump that a kind of low-temperature air source provides hot water and floor heating, and the technical problem of its solution is that existing source pump cannot have under cryogenic conditions and not only provides hot water but also provide heating function.
In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:
A kind of source pump of carrying out hot water and floor heating by low-temperature air source, on pipeline between the port of export of compressor (1) and condenser inlet end, be connected cross valve (2), between the system refrigerant import (171) of condensator outlet end and economizer (17), on pipeline, be connected with fluid reservoir (13) and filter (14) in turn, pipeline between the system refrigerant exit (172) of economizer (17) and evaporimeter (21) arrival end is provided with the second heating power expansion valve (19), between the hydrojet import (173) of filter (14) output and economizer (17), by hydrojet, enter pipeline communication, and enter and on pipeline, establish the 5th magnetic valve (16) and the first heating power expansion valve (18) in hydrojet, the hydrojet outlet (174) of economizer (17) is connected with compressor (1) by hydrojet output channel, on pipeline between evaporimeter (21) output and compressor (1) arrival end, be connected with described cross valve (2) and separator (22) the final refrigerant-cycle systems that forms enclosed in turn, it is characterized in that: described condenser comprises the first condenser (4) and the second condenser (9), the first condenser (4) is the cool water heating in attemperater (6), and the second condenser (9) is the cool water heating in heating radiating tube (12).
Further, the first condenser (4) and the second condenser (9) are connected in parallel, the first condenser (4) cold-producing medium is imported and exported on pipeline and is respectively equipped with the first magnetic valve (3) and the second magnetic valve (7), and the cold water in attemperater (6) carries out heat exchange by circulating line and first condenser (4) of the first water circulating pump (5) is housed; The second condenser (9) cold-producing medium is imported and exported on pipeline and is respectively equipped with the 3rd magnetic valve (8) and the 4th magnetic valve (10), and the cold water in heating radiating tube (12) carries out heat exchange by circulating line and second condenser (9) of the second water circulating pump (11) is housed.
Further, between filter (14) output and compressor (1), be also provided with and heat pipeline, on pipeline, be provided with electric expansion valve (15) heating.
This low-temperature air source provides the source pump of hot water and floor heating to compare with conventional heat pump unit, has following beneficial effect:
(1) the utility model has met under cryogenic conditions the needs hot water demand of needs heating again, reduce winter when heat energy demand to the transition consumption of the disposable energy, improve the quality of air, reduce blowdown.
(2) the utility model obtains hot water and heating, does not need to consume the primary energy such as coal, combustion gas, without the discharge of the harmful toxins such as carbon dioxide, sulfur monoxide, dust, flue gas.Do not affect the environment of atmosphere, directly reduce the generation of North City mist despot weather.
(3) the utility model can be realized multiple spot water supply under low temperature environment, the function that water temperature is constant, under low temperature ring feelings, use floor heating, adopt heat superconducting floor heating module, water temperature only needs indoor temperature to be raised to 25 degree below 45 degree, room temperature rises fast, and start only needs 30 minutes, and the heating of traditional approach is more energy-conservation relatively.Use more comfortable.The ability that equipment heats is the more than 2 times of electric heating, also stop solar energy simultaneously because the low booster causing of temperature, water temperature can not continuous heating etc. scarce limit.
(4) the utility model is because the hydrojet outlet of economizer is connected with compressor by hydrojet output channel, low-temperature low-pressure refrigerant through the first heating power expansion valve is exported and is directly got back to compressor by hydrojet after economizer carries out heat exchange, control the temperature of compressor secondary exhaust, avoid excessive discharge temperature, and by the exhaust of constant compression machine, improve the heat exchanger effectiveness of condenser.
(5) the utility model is by economizer and the second heating power expansion valve reducing temperature twice, reduces the temperature of cold-producing medium, realizes cold-producing medium and enters after outdoor evaporimeter the high efficiency with air heat-exchange.
(6) the utility model, owing to being also provided with and heating pipeline between filter output and compressor, allows a part of high-temperature refrigeration directly get back to the delivery temperature that compressor improves second-compressed, increases secondary heat exchange efficiency.
Accompanying drawing explanation
Fig. 1: the utility model low-temperature air source provides the systematic schematic diagram of the source pump of hot water and floor heating.
Description of reference numerals:
1-compressor; 2-cross valve; The 3-the first magnetic valve; The 4-the first condenser; The 5-the first water circulating pump; 6-attemperater; The 7-the second magnetic valve; The 8-the three magnetic valve; The 9-the second condenser; The 10-the four magnetic valve; The 11-the second water circulating pump; 12-heating radiating tube; 13-fluid reservoir; 14-filter; 15-electric expansion valve; The 16-the five magnetic valve; 17-economizer; The import of 171-system refrigerant; 172-system refrigerant exit; The import of 173-hydrojet; The outlet of 174-hydrojet; The 18-the first heating power expansion valve; The 19-the second heating power expansion valve; 20-blower fan; 21-evaporimeter; 22-separator.
The specific embodiment
Below in conjunction with Fig. 1, the utility model is described further:
Low-temperature air source hot water+floor heating source pump, mainly contains the critical pieces such as compressor 1, cross valve 2, the first magnetic valve 3, the first condenser 4, circulating pump 5, attemperater 6, the second magnetic valve 7, the 3rd magnetic valve 8, the second condenser 9, the 4th magnetic valve 10, the second water circulating pump 11, heating radiating tube 12, fluid reservoir 13, filter 14, electric expansion valve 15, the 5th magnetic valve 16, economizer 17, the first heating power expansion valve 18, the second heating power expansion valve 19, blower fan 20, evaporimeter 21 and separator 22 and forms.
All critical pieces connect to form the refrigerant-cycle systems of an enclosed by copper pipe, the operational mode of equipment has two kinds of different modes: 1, water heating.2, floor heating.
Respectively the operation of two kinds of different modes is described:
1, the operation principle of water heating pattern:
During in low temperature environment-25 ℃, operational process during main frame processing hot water is followed successively by: the 3rd magnetic valve 8, the 4th magnetic valve 10 power-off are normally closed, the first magnetic valve 3, the second magnetic valve 7 energisings are opened, the first water circulating pump 5 starts operation, blower fan 20 starts operation, compressor 1 brings into operation, refrigerant compression is become to the gaseous state of HTHP, its refrigerant temperature can reach 130 degree, the cold-producing medium of HTHP starts release heat while flowing through the first condenser 4 by cross valve 2, attemperater 6 stores cold water, by the first water circulating pump 5, constantly cold water is extracted in condenser, the temperature that cold water absorbs high temperature refrigerant in the first condenser 4 is constantly pressed onto attemperater 6 by the first water circulating pump 5 again after heating, water temperature raises.
After high-temperature high-pressure refrigerant release heat in the first condenser 4 there is gas-liquid mixed state in temperature reduction, when cold-producing medium is flowed through fluid reservoir 13, fraction liquid refrigeration device is stored, most of gaseous refrigerant is when flowing through filter 14, impurity in cold-producing medium further cleans, and strengthens the stability of system.
Now high temperature refrigerant can be divided into the stability that three roads flow to automatic regulating system according to environment temperature.One road cold-producing medium can pass through electric expansion valve 15, electric expansion valve 15 can be opened according to the variation adjustment of temperature the caliber size of phase, temperature is lower, the angle that electric expansion valve is opened is just larger, allow a part of high-temperature refrigeration directly get back to the delivery temperature that compressor 1 improves second-compressed, increase secondary heat exchange efficiency.Another road high-temperature high-pressure refrigerant can be got back to economizer 17 by hydrojet import 173 by becoming the gas-liquid state of low-temp low-pressure after damming by the first heating power expansion valve 18 after the 5th magnetic valve 16, also has the cold-producing medium of a road HTHP directly by system refrigerant import 171, to flow to economizer 17.The different cold and hot cold-producing medium of two-way carries out after heat exchange, through the low-temperature low-pressure refrigerant of the first heating power expansion valve 18, after economizer carries out heat exchange, by hydrojet, export 174 and directly get back to compressor 1, control the excess Temperature of compressor 1 secondary exhaust, systems stabilisation operation.The high-temperature high-pressure refrigerant that enters economizer from system refrigerant import 171 through filter 14 carries out heat exchange, and cold-producing medium minimum temperature becomes-10 ℃.High pressure low temperature cold-producing medium is reducing temperature twice after the second heating power expansion valve 19 dams, and now the temperature of cold-producing medium is minimum reaches-60 ℃.
When low-temperature refrigerant-60 ℃ enter evaporimeter 20; there is the temperature difference of 35 degree with ambient temperature-25 ℃; by blower fan 20, drive the air of-25 ℃ to carry out heat exchange with the agent of-60 ℃ of evaporimeter internal refrigeration storage; the temperature of air further reduces discharge, and low-temperature refrigerant heat absorption forms liquid state, by cross valve 2, gets back to separator 22; sub-fraction liquid refrigerant is stored; most of cryogenic gaseous cold-producing medium is got back to compressor 1 again, iterative cycles like this, and the temperature of hot water reaches design temperature and shuts down.
This system is in the process of operation, and electric expansion valve 15, the five magnetic valves 16 are the unlatching of having ready conditions, and under low temperature environment, just can open, and its Main Function mainly contains 2 points: the one, by the exhaust of constant compression machine 1, improve the heat exchanger effectiveness of the first condenser 4.The 2nd, by the second heating power expansion valve 19 Second Interceptions, lower the temperature to reduce the efficiency that the temperature of cold-producing medium enters the rear raising of evaporimeter 21 and air heat-exchange.This is to guarantee that main frame uses the higher decisive factor of acquisition Energy Efficiency Ratio under low temperature environment.
2, the operation principle of floor heating pattern:
During in low temperature environment-25 ℃, operational process when main frame provides floor heating is followed successively by: the 3rd magnetic valve 8 and the 4th magnetic valve 10 energisings are often opened, the first magnetic valve 3 and the second magnetic valve 7 power-off are normally closed, the second water circulating pump 11 starts operation, blower fan 20 starts operation, compressor 1 brings into operation, refrigerant compression is become to the gaseous state of HTHP, its refrigerant temperature can reach 130 ℃, the cold-producing medium of HTHP starts release heat while flowing through the second condenser 9 by cross valve 2, heating radiating tube 12 is positioned over indoor, interior reservoir has cold water, by the second water circulating pump 11, constantly cold water is extracted in the second condenser 9, in cold water absorptive condenser 8, the temperature of high temperature refrigerant is constantly taken in heating radiating tube 12 by the second water circulating pump 11 again after heating, along with the water temperature in heating radiating tube 12 raises, indoor temperature also synchronously raises.
After high-temperature high-pressure refrigerant release heat in the second condenser 9 there is gas-liquid mixed state in temperature reduction, when cold-producing medium is flowed through fluid reservoir 13, fraction liquid refrigeration device is stored, most of gaseous refrigerant is when flowing through filter 14, impurity in cold-producing medium further cleans, and strengthens the stability of system.
Now high temperature refrigerant can be divided into the stability that three roads flow to automatic regulating system according to environment temperature.One road cold-producing medium can pass through electric expansion valve 15, electric expansion valve 15 can be opened according to the variation adjustment of temperature the caliber size of phase, temperature is lower, the angle that electric expansion valve is opened is just larger, allow a part of high-temperature refrigeration directly get back to the delivery temperature that compressor 1 improves second-compressed, increase secondary heat exchange efficiency.Another road high-temperature high-pressure refrigerant can be got back to economizer 17 by hydrojet import by becoming the gas-liquid state of low-temp low-pressure after damming by the first heating power expansion valve 18 after the 5th magnetic valve 16, also has the cold-producing medium of a road HTHP directly by the import of system refrigerant, to flow to economizer 17.The different cold and hot cold-producing medium of two-way carries out after heat exchange, low-temperature low-pressure refrigerant through the first heating power expansion valve 18 is exported and is directly got back to compressor 1 by hydrojet after economizer carries out heat exchange, control the excess Temperature of compressor secondary exhaust, systems stabilisation operation.The high-temperature high-pressure refrigerant that enters economizer from the import of system refrigerant through filter 14 carries out heat exchange, and cold-producing medium minimum temperature becomes-10 ℃.High pressure low temperature cold-producing medium is reducing temperature twice after the second heating power expansion valve 19 dams, and now the temperature of cold-producing medium is minimum reaches-60 ℃.
When low-temperature refrigerant-60 ℃ enter evaporimeter 20; there is the temperature difference of 35 degree with ambient temperature-25 ℃; by blower fan 20, drive the air of-25 ℃ to carry out heat exchange with the agent of-60 ℃ of evaporimeter internal refrigeration storage; the temperature of air further reduces discharge; low-temperature refrigerant heat absorption forms liquid state; by cross valve 2, get back to separator 22; sub-fraction liquid refrigerant is stored; most of cryogenic gaseous cold-producing medium is got back to compressor 1 again; iterative cycles like this, main shut-down system when indoor temperature reaches design temperature.
This system is in the process of operation, some is identical with the mode of water heating, in actual application, when we set on the control panel of main frame, make with the preferential heating of hot water, to be as the criterion eventually, for example, when heating, equipment first processes hot water, is controlled at running time in 20 minutes, then proceed to floor heating, so just be beneficial to main frame domestic hot-water can be provided, can realize floor heating again, improve the peak use rate of main frame, only when pressing hot water pattern, system is controlled hot water is only provided, and main frame just can single water heating, does not carry out the function of heating.For example, when weather is warm, now can select water heating function.
Adopt low-temperature air source hot water+floor heating source pump technology, solved the demand that needs hot water to need again heating under cryogenic conditions, reduce winter when heat energy demand to the transition consumption of primary energy, improve the quality of air, reduce blowdown.
By reference to the accompanying drawings the utility model has been carried out to exemplary description above; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technical scheme to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all in protection domain of the present utility model.

Claims (3)

1. a source pump of carrying out hot water and floor heating by low-temperature air source, on pipeline between the port of export of compressor (1) and condenser inlet end, be connected cross valve (2), between the system refrigerant import (171) of condensator outlet end and economizer (17), on pipeline, be connected with fluid reservoir (13) and filter (14) in turn, pipeline between the system refrigerant exit (172) of economizer (17) and evaporimeter (21) arrival end is provided with the second heating power expansion valve (19), between the hydrojet import (173) of filter (14) output and economizer (17), by hydrojet, enter pipeline communication, and enter and on pipeline, establish the 5th magnetic valve (16) and the first heating power expansion valve (18) in hydrojet, the hydrojet outlet (174) of economizer (17) is connected with compressor (1) by hydrojet output channel, on pipeline between evaporimeter (21) output and compressor (1) arrival end, be connected with described cross valve (2) and separator (22) the final refrigerant-cycle systems that forms enclosed in turn, it is characterized in that: described condenser comprises the first condenser (4) and the second condenser (9), the first condenser (4) is the cool water heating in attemperater (6), and the second condenser (9) is the cool water heating in heating radiating tube (12).
2. by low-temperature air source, carry out according to claim 1 the source pump of hot water and floor heating, it is characterized in that: the first condenser (4) and the second condenser (9) are connected in parallel, the first condenser (4) cold-producing medium is imported and exported on pipeline and is respectively equipped with the first magnetic valve (3) and the second magnetic valve (7), and the cold water in attemperater (6) carries out heat exchange by circulating line and first condenser (4) of the first water circulating pump (5) is housed; The second condenser (9) cold-producing medium is imported and exported on pipeline and is respectively equipped with the 3rd magnetic valve (8) and the 4th magnetic valve (10), and the cold water in heating radiating tube (12) carries out heat exchange by circulating line and second condenser (9) of the second water circulating pump (11) is housed.
3. according to carry out the source pump of hot water and floor heating described in claim 1 or 2 by low-temperature air source, it is characterized in that: between filter (14) output and compressor (1), be also provided with and heat pipeline, on pipeline, be provided with electric expansion valve (15) heating.
CN201320427679.3U 2013-07-18 2013-07-18 Heat pump machine set for providing hot water and floor heating through low-temperature air source Expired - Fee Related CN203413822U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320427679.3U CN203413822U (en) 2013-07-18 2013-07-18 Heat pump machine set for providing hot water and floor heating through low-temperature air source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320427679.3U CN203413822U (en) 2013-07-18 2013-07-18 Heat pump machine set for providing hot water and floor heating through low-temperature air source

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103851828A (en) * 2014-03-28 2014-06-11 佛山市顺德区华天成电器有限公司 Enhanced vapor injection combined system
CN107436054A (en) * 2017-08-25 2017-12-05 广东美的暖通设备有限公司 Air source heat pump and its control method
CN112797547A (en) * 2020-12-30 2021-05-14 北京燃气能源发展有限公司 Civil residence fresh air waste heat utilization system and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103851828A (en) * 2014-03-28 2014-06-11 佛山市顺德区华天成电器有限公司 Enhanced vapor injection combined system
CN103851828B (en) * 2014-03-28 2016-08-17 广东华天成新能源科技股份有限公司 A kind of air injection enthalpy-increasing co-feeding system
CN107436054A (en) * 2017-08-25 2017-12-05 广东美的暖通设备有限公司 Air source heat pump and its control method
CN112797547A (en) * 2020-12-30 2021-05-14 北京燃气能源发展有限公司 Civil residence fresh air waste heat utilization system and method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140129

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CF01 Termination of patent right due to non-payment of annual fee