CN207365276U - A kind of gas-fired heat pump waste heat automatic defrosting system - Google Patents
A kind of gas-fired heat pump waste heat automatic defrosting system Download PDFInfo
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- CN207365276U CN207365276U CN201721405594.XU CN201721405594U CN207365276U CN 207365276 U CN207365276 U CN 207365276U CN 201721405594 U CN201721405594 U CN 201721405594U CN 207365276 U CN207365276 U CN 207365276U
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Abstract
The utility model discloses a kind of gas-fired heat pump waste heat automatic defrosting system, including gas engine, cylinder sleeve waste-heat recoverer, compressor, gas-liquid separator, oil eliminator, evaporator, air heat exchanger, layering heat collection water tank, jacket-cooling water circulating pump, the first four-way valve and the second four-way valve；Cylinder sleeve waste-heat recoverer is connected by pipeline with jacket-cooling water circulating pump, layering heat collection water tank；The smoke outlet of gas engine is connected by pipeline with being layered the motor exhaust heat exchange entrance of heat collection water tank；The outlet of compressor is connected by import of the pipeline sequentially with oil eliminator, expansion valve, evaporator, and the outlet of gas-liquid separator is connected by pipeline with the import of compressor.The present apparatus is simple in structure, easily controllable；During defrosting, indoor heating process is not interrupted, and waste heat wastage is few, realizes the efficient utilization of cylinder sleeve of engine waste heat and waste gas residual heat, there is provided stable domestic hot-water；The time of required defrosting process is short, and defrosting efficiency is high.
Description
Technical field
It the utility model is related to a kind of technical field of gas-fired heat pump manufacture, more particularly to a kind of gas-fired heat pump waste heat is automatic
Except defrosting system.
Background technology
Heat pump type air conditioning system heat in the winter time under operating mode have the characteristics that it is energy-efficient, with energy and environment dual-pressure
Exacerbation, the application of the technology is increasingly taken seriously.Wherein, combustion-gas thermal pump air-conditioning system be one kind using natural gas as fuel,
The important distribution formula energy resource system that compressor in heat pump air conditioner unit works is moved by engine direct tape splicing.Gas-fired heat pump
Air-conditioning system can meet the needs of people are to air conditioning applications well, and possess good energy conservation and environmental protection characteristic.In recent years, with
The accounting that natural gas energy resource utilizes constantly to increase, research of the China to the technology and application also pay attention to day by day.
Heat pump unit is influenced under heating mode by environment temperature in the winter time, and there are the problems such as easy frosting.Traditional heat pump is empty
Unit is adjusted to defrost by the way of reversion, which defrosting efficiency is relatively low, and fluctuations in indoor temperature can be caused larger, reduces
The comfort level of people.It can be defrosted in the gas-fired heat pump course of work using waste heat, and during defrosting, indoor unit is normally transported
OK, fluctuations in indoor temperature is smaller.And existing gas-fired heat pump waste heat defroster deposits waste heat in the process of running and wastes serious, control
The defects of system complexity and excessive used device.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of gas-fired heat pump waste heat automatic defrosting
System.
The utility model is achieved through the following technical solutions：A kind of gas-fired heat pump waste heat automatic defrosting system, bag
The cylinder sleeve waste-heat recoverer that include gas engine, is arranged in gas engine, compressor, gas-liquid separator, oil eliminator, steaming
Send out device, air heat exchanger, layering heat collection water tank, jacket-cooling water circulating pump, the first four-way valve and the second four-way valve；The layering
Heat collection water tank offers refrigerant inlet, refrigerant outlet, motor exhaust heat exchange outlet, motor exhaust heat exchange entrance, cylinder
Jacket water heat exchange outlet, jacket-cooling water heat exchange entrance, domestic hot-water supply outlet, moisturizing entrance；The cylinder sleeve waste heat returns
The import for receiving device is sequentially connected by pipeline with the jacket-cooling water circulating pump, jacket-cooling water heat exchange outlet；It is described
The outlet of cylinder sleeve waste-heat recoverer is connected by pipeline with jacket-cooling water heat exchange entrance；The smoke evacuation of the gas engine
Mouth is connected by pipeline with motor exhaust heat exchange entrance；The jacket-cooling water heat exchange outlet and the jacket-cooling water
The first heat exchanger tube positioned at the layering heat collection water tank, the motor exhaust heat exchange outlet and institute are connected between heat exchange entrance
State motor exhaust heat exchange entrance between be connected with positioned at it is described layering heat collection water tank the second heat exchanger tube, the refrigerant inlet
The 3rd heat exchanger tube positioned at the layering heat collection water tank is connected between the refrigerant outlet；First four-way valve connects
Mouth includes the first end interface, the second end interface, the 3rd end interface and the 4th end interface, and the interface of second four-way valve includes the
Five end interfaces, the 6th end interface, the 7th end interface and the 8th end interface；The outlet of the compressor passes through pipeline and the oil
Import from device connects, and the outlet of the oil eliminator is connected by pipeline with the import of the evaporator, the evaporator
Outlet is connected by the first end interface described in pipeline, and the 3rd end interface connects with the import of the air heat exchanger, described
The outlet of air heat exchanger is connected by pipeline with the refrigerant inlet；The refrigerant outlet passes through pipeline and the described 7th
End interface connects, and the 5th end interface is connected by pipeline with second end interface, and the 4th end interface passes through pipeline
Connect with the 6th end interface, the 8th end interface is connected by pipeline with the import of the gas-liquid separator, the gas
The outlet of liquid/gas separator is connected by pipeline with the import of the compressor；The outlet of the evaporator and first end interface
Between pipeline on be provided with expansion valve.
First heat exchanger tube is used for engine cylinder jacket water and exchanges heat with the water in heat collection water tank；Second heat exchanger tube is used to start
Tail gas exchanges heat with the water in heat collection water tank；3rd heat exchanger tube is used for refrigerant and exchanges heat with the water in heat collection water tank；First four-way
Valve is used cooperatively with the second four-way valve so that the system switches heating mode or defrosting mode according to demand, and controls system
Circulating for cryogen, takes full advantage of waste heat, improves the efficiency of defrosting.
The gas-liquid separator is between the gas engine and the gas-liquid separator.
The water tank small pump that the promising layering heat collection water tank of moisturizing entrance connection supplies water.
The domestic hot-water supply outlet is positioned at the top of the layering heat collection water tank, and the moisturizing entrance is positioned at described point
The bottom of layer heat collection water tank.Moisturizing entrance is located at bottom, from bottom to top charge stratifying heat collection water tank so that between water and heat exchanger tube
Carry out coming into full contact with heat exchange, so that waste heat fully be exchanged, the higher domestic hot-water of temperature is obtained, from stratified set hot water tank top
Supply domestic hot-water.
Under non-defrosting operating condition, first end interface is connected with the 3rd end interface, second end interface with it is described
4th end interface is closed；7th end interface is connected with the 8th end interface, the 5th end interface and the 6th end
Interface is closed.
Under defrosting operating condition, first end interface is connected with the 4th end interface, second end interface and described the
Three end interfaces connect；6th end interface is connected with the 7th end interface, the 5th end interface and the described 8th termination
Mouth connection.
It is compared with the prior art, the utility model has the advantage of：The present apparatus is simple in structure, easily controllable；Defrosting process
In, indoor heating process is not interrupted, and waste heat wastage is few, realizes the efficient utilization of cylinder sleeve of engine waste heat and waste gas residual heat,
Stable domestic hot-water is provided；The time of required defrosting process is short, and defrosting efficiency is high.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment.
Reference numeral implication in figure：01st, gas engine；02nd, cylinder sleeve waste-heat recoverer；03rd, compressor；04th, oil separation
Device；05th, gas-liquid separator；06th, evaporator；07th, the first four-way valve；071st, the first end interface；072nd, the second end interface；073rd,
Three end interfaces；074th, the 4th end interface；08th, air heat exchanger；09th, it is layered heat collection water tank；10th, water tank small pump；11st, cylinder sleeve is cold
But water-circulating pump；12nd, domestic hot-water supply exports；13rd, motor exhaust heat exchange outlet；14th, motor exhaust heat exchange entrance；
15th, jacket-cooling water heat exchange outlet；16th, jacket-cooling water heat exchange entrance；17th, smoke outlet；18th, expansion valve；19th, the second four-way
Valve；191st, the 5th end interface；192nd, the 6th end interface；193rd, the 7th end interface；194th, the 8th end interface；20th, refrigerant inlet；
21st, refrigerant outlet；22nd, moisturizing entrance.
Embodiment
The content of the utility model is described in further details with reference to the accompanying drawings and detailed description.
Embodiment
It is a kind of gas-fired heat pump waste heat automatic defrosting system refering to Fig. 1, including gas engine 01, is arranged on combustion gas hair
Cylinder sleeve waste-heat recoverer 02, compressor 03, gas-liquid separator 05, oil eliminator 04, evaporator 06, air heat-exchange in motivation 01
Device 08, layering heat collection water tank 09, jacket-cooling water circulating pump 11, the first four-way valve 07 and the second four-way valve 19；Stratified set hot water
Case 09 offers refrigerant inlet 20, refrigerant outlet 21, motor exhaust heat exchange outlet 13, motor exhaust heat exchange entrance
14th, jacket-cooling water heat exchange outlet 15, jacket-cooling water heat exchange entrance 16, domestic hot-water supply outlet 12, moisturizing entrance 22；Cylinder
The import for covering waste-heat recoverer 02 sequentially exports 15 phases by pipeline with jacket-cooling water circulating pump 11, jacket-cooling water heat exchange
Connect；The outlet of cylinder sleeve waste-heat recoverer 02 is connected by pipeline with jacket-cooling water heat exchange entrance 16；The row of gas engine 01
Mouth 17 is connected by pipeline with motor exhaust heat exchange entrance 14；Jacket-cooling water heat exchange outlet 15 exchanges heat with jacket-cooling water
The first heat exchanger tube positioned at layering heat collection water tank 09, motor exhaust heat exchange outlet 13 and engines tail are connected between entrance 16
The second heat exchanger tube positioned at layering heat collection water tank 09, refrigerant inlet 20 and refrigerant outlet are connected between gas heat exchange entrance 14
The 3rd heat exchanger tube positioned at layering heat collection water tank 09 is connected between 21；The interface of first four-way valve 07 includes the first end interface
071st, the second end interface 072, the 3rd end interface 073 and the 4th end interface 074, the interface of the second four-way valve 19 include the 5th termination
The 191, the 6th end interface 192 of mouth, the 7th end interface 193 and the 8th end interface 194；The outlet of compressor 03 passes through pipeline and oil
Import from device 04 connects, and the outlet of oil eliminator 04 is connected by pipeline with the import of evaporator 06, the outlet of evaporator 06
Connected by the first end interface of pipeline 071, the 3rd end interface 073 connects with the import of air heat exchanger 08, air heat exchanger 08
Outlet connected by pipeline with refrigerant inlet 20；Refrigerant outlet 21 is connected by pipeline with the 7th end interface 193, and the 5th
End interface 191 is connected by pipeline with the second end interface 072, and the 4th end interface 074 passes through pipeline and 192 phase of the 6th end interface
Connect, the 8th end interface 194 is connected by pipeline with the import of gas-liquid separator 05, the outlet of gas-liquid separator 05 by pipeline with
The import of compressor 03 connects；It is provided with pipeline between the outlet of the evaporator 06 and first end interface 071 swollen
Swollen valve 18.
First heat exchanger tube is used for engine cylinder jacket water and exchanges heat with the water in heat collection water tank；Second heat exchanger tube is used to start
Tail gas exchanges heat with the water in heat collection water tank；3rd heat exchanger tube is used for refrigerant and exchanges heat with the water in heat collection water tank；First four-way
Valve 07 is used cooperatively with the second four-way valve 19 so that the system switches heating mode or defrosting mode according to demand, and controls
Circulating for refrigerant processed, takes full advantage of waste heat, improves the efficiency of defrosting.
Gas-liquid separator 05 is between gas engine 01 and gas-liquid separator 05.
Moisturizing entrance 22 connects the water tank small pump 10 that promising stratified set boiler 09 supplies water.
Domestic hot-water supply outlet 12 is positioned at the top of layering heat collection water tank 09, and moisturizing entrance 22 is positioned at layering heat collection water tank
09 bottom.Moisturizing entrance 22 is located at bottom, from bottom to top charge stratifying heat collection water tank 09 so that is carried out between water and heat exchanger tube
Heat exchange is come into full contact with, so that waste heat fully be exchanged, the higher domestic hot-water of temperature is obtained, is layered from from domestic hot-water mouthful discharge
Heat collection water tank 09.
Under non-defrosting operating condition, the first end interface 071 is connected with the 3rd end interface 073, the second end interface 072 and the 4th termination
Mouth 074 is closed；7th end interface 193 is connected with the 8th end interface 194, and the 5th end interface 191 is closed with the 6th end interface 192.
Under defrosting operating condition, the first end interface 071 is connected with the 4th end interface 074, the second end interface 072 and the 3rd end interface
073 connection；6th end interface 192 is connected with the 7th end interface 193, and the 5th end interface 191 is connected with the 8th end interface 194.
In the present embodiment, layering heat collection water tank 09 is used to recycle cylinder sleeve of engine waste heat and waste heat from tail gas, and can be non-
The refrigerant that overheat comes out from air heat exchanger 08 under defrosting operating condition.When frosting occurs in 08 surface of air heat exchanger, remove automatically
Defrosting system is opened.Specifically, it is exactly by the commutation of the first four-way valve 07, the second four-way valve 19, will be exported from evaporator 06
Refrigerant first import in stratified set boiler 09 and heated, then defrost again into air heat exchanger 08.
The system flow of gas-fired heat pump heating operating mode is as shown in Figure 1.Under normal heating mode, 01 direct band of gas engine
Dynamic compressor 03 works, and compressed refrigerant enters evaporator 06 (as condensation under heating condition after oil eliminator 04
Device use) heat exchange.Enter heat absorption in air heat exchanger 08 after condensed expanded 18 and first four-way valve 07 of valve of refrigerant.This
When the first four-way valve 07 the first end interface 071 connected with the 3rd end interface 073, the second end interface 072 and the 4th end interface 074
Close.Refrigerant after the heat absorption of air heat exchanger 08 enters after the interior overheat of layering heat collection water tank 09 by the second four-way valve 19
7th end interface 193 and the 8th end interface 194 enter gas-liquid separator 05, finally arrive in compressor 03 and are compressed again, complete
Heating circulation.
Under defrosting mode, refrigerant flows out after 18 and first four-way valve 07 of expansion valve from the 4th end interface 074, then
The 6th end interface 192 of the second four-way valve 19, while the second end interface 072 of the first four-way valve 07 and are connected to by pipeline
191 end of the 5th end interface connection of two four-way valves 19.At this time, the first end interface 071 and the 4th end interface of the first four-way valve 07
074 is connected, its 3rd end interface 073 is connected with the second end interface 072, the 6th end interface 192 and the 7th of the second four-way valve 19
End interface 193 is connected, the 5th end interface 191 is connected with the 8th end interface 194.Therefore, in defrost mode, refrigerant is from first
Four-way valve 07 is introduced into the second four-way valve 19 after flowing out, and subsequently into exchanging heat in layering heat collection water tank 09, finally enters sky
Enter gas-liquid separator 05 through the first four-way valve 07 and the second four-way valve 19 after the defrosting of gas heat exchanger 08.
Above-listed detailed description is illustrating for the utility model possible embodiments, which simultaneously is not used to limit
The scope of the claims of the utility model, all equivalence enforcements or change without departing from carried out by the utility model, are intended to be limited solely by this case
In the scope of the claims.
Claims (6)
- A kind of 1. gas-fired heat pump waste heat automatic defrosting system, it is characterised in that：Including gas engine (01), it is arranged on combustion gas hair Cylinder sleeve waste-heat recoverer (02), compressor (03), gas-liquid separator (05), oil eliminator (04), evaporator in motivation (01) (06), air heat exchanger (08), layering heat collection water tank (09), jacket-cooling water circulating pump (11), the first four-way valve (07) and the Two four-way valves (19)；The layering heat collection water tank (09) offers refrigerant inlet (20), refrigerant outlet (21), engines tail Gas heat exchange outlet (13), motor exhaust heat exchange entrance (14), jacket-cooling water heat exchange outlet (15), jacket-cooling water exchange heat into Mouth (16), domestic hot-water supply outlet (12), moisturizing entrance (22)；The import of the cylinder sleeve waste-heat recoverer (02) passes through pipeline Sequentially connect with the jacket-cooling water circulating pump (11), jacket-cooling water heat exchange outlet (15)；The cylinder sleeve waste heat returns The outlet for receiving device (02) is connected by pipeline with jacket-cooling water heat exchange entrance (16)；The row of the gas engine (01) Mouth (17) is connected by pipeline with motor exhaust heat exchange entrance (14)；Jacket-cooling water heat exchange outlet (15) with The first heat exchanger tube positioned at the layering heat collection water tank (09) is connected between the jacket-cooling water heat exchange entrance (16), it is described It is connected between motor exhaust heat exchange outlet (13) and motor exhaust heat exchange entrance (14) positioned at the layering thermal-arrest Second heat exchanger tube of water tank (09), is connected between the refrigerant inlet (20) and the refrigerant outlet (21) positioned at described It is layered the 3rd heat exchanger tube of heat collection water tank (09)；The interface of first four-way valve (07) includes the first end interface (071), second End interface (072), the 3rd end interface (073) and the 4th end interface (074), the interface of second four-way valve (19) include the 5th End interface (191), the 6th end interface (192), the 7th end interface (193) and the 8th end interface (194)；The compressor (03) Outlet is connected by pipeline with the import of the oil eliminator (04), the outlet of the oil eliminator (04) by pipeline with it is described The import of evaporator (06) connects, and the outlet of the evaporator (06) is connected by the first end interface (071) described in pipeline, described 3rd end interface (073) connects with the import of the air heat exchanger (08), and the outlet of the air heat exchanger (08) passes through pipe Road connects with the refrigerant inlet (20)；The refrigerant outlet (21) passes through pipeline and the 7th end interface (193) phase Connect, the 5th end interface (191) is connected by pipeline with second end interface (072), and the 4th end interface (074) is logical Cross pipeline with the 6th end interface (192) to connect, the 8th end interface (194) passes through pipeline and the gas-liquid separator (05) import connects, and the outlet of the gas-liquid separator (05) is connected by pipeline with the import of the compressor (03)；Institute State and expansion valve (18) is provided with the pipeline between the outlet of evaporator (06) and first end interface (071).
- 2. gas-fired heat pump waste heat automatic defrosting system according to claim 1, it is characterised in that：The gas-liquid separator (05) between the gas engine (01) and the gas-liquid separator (05).
- 3. gas-fired heat pump waste heat automatic defrosting system according to claim 1, it is characterised in that：The moisturizing entrance (22) Connect the water tank small pump (10) that the promising layering heat collection water tank (09) is supplied water.
- 4. gas-fired heat pump waste heat automatic defrosting system according to claim 1, it is characterised in that：The domestic hot-water supply Export (12) and be located at the layering heat collection water tank positioned at the top of the layering heat collection water tank (09), the moisturizing entrance (22) (09) bottom.
- 5. gas-fired heat pump waste heat automatic defrosting system according to claim 1, it is characterised in that：Under non-defrosting operating condition, institute State the first end interface (071) to connect with the 3rd end interface (073), second end interface (072) and the described 4th termination Mouth (074) is closed；7th end interface (193) connects with the 8th end interface (194), the 5th end interface (191) Closed with the 6th end interface (192).
- 6. gas-fired heat pump waste heat automatic defrosting system according to claim 1, it is characterised in that：It is described under defrosting operating condition First end interface (071) is connected with the 4th end interface (074), second end interface (072) and the 3rd end interface (073) connect；6th end interface (192) connects with the 7th end interface (193), the 5th end interface (191) with 8th end interface (194) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405594.XU CN207365276U (en) | 2017-10-26 | 2017-10-26 | A kind of gas-fired heat pump waste heat automatic defrosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405594.XU CN207365276U (en) | 2017-10-26 | 2017-10-26 | A kind of gas-fired heat pump waste heat automatic defrosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207365276U true CN207365276U (en) | 2018-05-15 |
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ID=62344339
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721405594.XU Active CN207365276U (en) | 2017-10-26 | 2017-10-26 | A kind of gas-fired heat pump waste heat automatic defrosting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763772A (en) * | 2017-10-26 | 2018-03-06 | 中国科学院广州能源研究所 | A kind of gas-fired heat pump waste heat automatic defrosting system |
| US11833889B2 (en) | 2018-09-13 | 2023-12-05 | Carrier Corporation | Transport refrigeration unit with engine heat for defrosting |
-
2017
- 2017-10-26 CN CN201721405594.XU patent/CN207365276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107763772A (en) * | 2017-10-26 | 2018-03-06 | 中国科学院广州能源研究所 | A kind of gas-fired heat pump waste heat automatic defrosting system |
| US11833889B2 (en) | 2018-09-13 | 2023-12-05 | Carrier Corporation | Transport refrigeration unit with engine heat for defrosting |
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