CN208431935U - The two second compression level-ones throttling Teat pump boiler of step coupling heating - Google Patents
The two second compression level-ones throttling Teat pump boiler of step coupling heating Download PDFInfo
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- CN208431935U CN208431935U CN201820956325.0U CN201820956325U CN208431935U CN 208431935 U CN208431935 U CN 208431935U CN 201820956325 U CN201820956325 U CN 201820956325U CN 208431935 U CN208431935 U CN 208431935U
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Abstract
A kind of two second compression level-ones throttling Teat pump boiler of step coupling heating, the outlet of high pressure compressor is connected to the refrigerant inlet of the first condenser, first condensator outlet is connected to by first throttling device and subcooler with the entrance of high pressure compressor all the way, another way is connected to through subcooler, third throttling set, check valve with liquid storage device entrance, reservoir outlet is connected to the entrance of second throttling device, and the outlet of second throttling device is connected to the entrance of evaporator；The outlet of evaporator, the entrance of low pressure compressor, the outlet of low pressure compressor, the first shut-off valve and the second shut-off valve respectively with four orifices of four-way reversing valve；Total cooling water inlet is respectively communicated with by third shut-off valve and pump entrance and the 4th cut-off valve outlet, and exit of pump is connected to by the second, first condenser with water tank, the inlet communication of the first outlet of water tank and the 4th shut-off valve.The utility model is effectively reduced energy consumption, improving energy efficiency, increases operation temperature area.
Description
Technical field
The utility model relates to field of water heaters, especially a kind of Teat pump boiler.
Background technique
As environment and energy problem are got worse, the Teat pump boiler with effects of energy conservation and environmental protection has become research and answers
Hot spot is widely used to the occasions such as hotel, hospital, school, domestic hot-water, industrial production, and market is constantly expanding.
However existing Teat pump boiler, when environment temperature declines or hot water preparing temperature rises, efficiency substantially reduces, heating
Amount quickly reduces again, constrains its energy-saving effect and application range.Therefore efficiency, the operation for improving air source hot pump water heater are steady
Qualitative and working range is also a key issues.
Summary of the invention
Energy consumption in order to overcome the shortcomings of existing Teat pump boiler is larger, efficiency is lower, operation temperature area is not wide enough, this is practical
It is novel that a kind of two second compression level-one sections that the step coupling that energy consumption, improving energy efficiency, increase operation temperature area is effectively reduced is heated are provided
Flow Teat pump boiler.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of two second compression level-ones throttling Teat pump boiler of step coupling heating, including the compression of high pressure compressor, low pressure
Machine, four-way reversing valve, first throttling device, second throttling device, the first condenser, the second condenser, subcooler, liquid storage device,
The outlet of evaporator, water pump and water tank, the high pressure compressor is connected to the refrigerant inlet of first condenser, and described
The refrigerant outlet of one condenser is connected to by first throttling device with the first entrance of the subcooler all the way, the supercooling
The gas vent of device is connected to the entrance of the high pressure compressor, the another way of the refrigerant outlet of first condenser and institute
The second entrance connection of subcooler is stated, the liquid outlet of the subcooler enters by third throttling set, check valve and liquid storage device
Mouth connection, reservoir outlet are connected to the entrance of second throttling device, the outlet of the second throttling device and the evaporator
Entrance connection, the outlet of the evaporator is connected to the first entrance of the four-way reversing valve, and the first of four-way reversing valve goes out
Mouth is connected to the entrance of low pressure compressor, and the outlet of the low pressure compressor is connected to the second entrance of four-way reversing valve, four-way
The second outlet of reversal valve is divided into two strands, one is connected to by the first shut-off valve with the refrigerant inlet of the second condenser, described
The refrigerant outlet of second condenser is connected to liquid storage device entrance；Another stock-traders' know-how crosses the entrance of the second shut-off valve and high pressure compressor
Connection；
Total cooling water inlet ends valve outlet by third shut-off valve and pump entrance and the 4th and is respectively communicated with, exit of pump and
The cooling water inlet of second condenser is connected to, and the cooling water inlet of the hot water outlet of second condenser and first condenser connects
It is logical, the hot water outlet of first condenser and the inlet communication of water tank, the import of the first outlet of water tank and the 4th shut-off valve
Connection, the second outlet of water tank are total hot water outlet.
Further, the outlet of the high pressure compressor is connect with the entrance of the first oil eliminator, first oil eliminator
Oil export be connected to the entrance of the high pressure compressor, the refrigerant outlet of first oil eliminator and it is described first condensation
The refrigerant inlet of device is connected to；The outlet of the low pressure compressor is connect with the entrance of the second oil eliminator, second oil
It is connected to from the oil export of device with the entrance of the low pressure compressor, the refrigerant outlet and four-way of second oil eliminator commutate
The entrance of valve connects.
The beneficial effects of the utility model are mainly manifested in:
1, use scope is greatly expanded compared with single-stage heat pump, improves efficiency；
2, existing two stages of compression heat pump is compared, dexterously using two-step heating hot water can when hot water temperature rise is larger
To greatly reduce the wasted work of high pressure compressor, that is, further improve system energy efficiency.
3, it can choose most suitable mode under different seasons, different external condition, promote season to the maximum extent
Energy conservation effect, and guarantee the stable operation of system.
4, the method defrost that can use antikinesis, improves defrost efficiency.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the two second compression level-ones throttling Teat pump boiler of step coupling heating.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Referring to Fig.1, the two second compression level-ones throttling Teat pump boiler of a kind of step coupling heating, including high pressure compressor 1,
Low pressure compressor 10, four-way reversing valve 18, first throttling device 4, second throttling device 7, third throttling set 19, first condense
Device 3 and the second condenser 13, subcooler 5, liquid storage device 9, evaporator 8, water pump 15 and water tank 20, the high pressure compressor 1 go out
Mouth is connected to the refrigerant inlet of first condenser 3, and 3 refrigerant outlets of first condenser pass through first all the way
Throttling set 4 is connected to the first entrance of the subcooler 5, the gas vent of the subcooler 5 and the high pressure compressor 1
Entrance connection, the another way of the refrigerant outlet of first condenser 3 is connected to the second entrance of the subcooler 5, described
The liquid outlet of subcooler 5 be connected to by third throttling set 19, check valve 6 with 9 entrance of liquid storage device, and liquid storage device 9 exports and the
The entrance of two throttling sets 7 is connected to, and the outlet of the second throttling device 7 is connected to the entrance of the evaporator 8, the evaporation
The outlet of device 8 is connected to the first entrance of the four-way reversing valve 18, the first outlet and low pressure compressor of four-way reversing valve 18
10 entrance connection, the outlet of the low pressure compressor 10 are connected to the second entrance of four-way reversing valve 18, four-way reversing valve 18
Second outlet be divided into two strands, one is connected to by the first shut-off valve 12 with the refrigerant inlet of the second condenser 13, described the
The refrigerant outlet of two condensers 13 is connected to 9 entrance of liquid storage device；Another stock-traders' know-how crosses the second shut-off valve 14 and high pressure compressor
Entrance connection；
Total cooling water inlet is respectively communicated with by third shut-off valve 16 and 15 entrance of water pump and the outlet of the 4th shut-off valve 17, water pump
15 outlets are connected to the cooling water inlet of the second condenser 13, the hot water outlet of second condenser 13 and first condenser
3 cooling water inlet connection, the hot water outlet of first condenser 3 and the inlet communication of water tank 20, the first outlet of water tank 20
With the inlet communication of the 4th shut-off valve 17, the second outlet of water tank 20 is total hot water outlet.
The rated power of the low-pressure stage compressor 10 is greater than the rated power of high pressure stage compressor 1 under normal circumstances.
Further, the outlet of the high pressure compressor 1 is connect with the entrance of the first oil eliminator 2, the first oil separation
The oil export of device 2 is connected to the entrance of the high pressure compressor 1, the refrigerant outlet of first oil eliminator 2 and described the
The refrigerant inlet of one condenser 3 is connected to；The outlet of the low pressure compressor 10 is connect with the entrance of the second oil eliminator 11, institute
The oil export for stating the second oil eliminator 11 is connected to the entrance of the low pressure compressor 10, the refrigeration of second oil eliminator 11
Agent outlet is connect with the second entrance of four-way reversing valve 18.
Referring to Fig.1, the working process of this embodiment is as follows:
Two stages of compression two-step heating mode: when environment temperature is lower, required hot water temperature is again higher, and inlet water temperature
The mode is used when lower, the first shut-off valve 12 is opened with the second shut-off valve 14, and high pressure compressor 1, low pressure compressor 10 are equal
Operation, water pump 15 are run.The oil-containing gaseous refrigerant of high temperature and pressure enters the first oil eliminator from the outlet of high pressure compressor 1 outflow
2, the lubricating oil in refrigerating agent containing oil is separated in the first oil eliminator and flows out back from the oil export of the first oil eliminator 2
Refrigerant to suction port of compressor, high temperature and pressure enters 3 refrigerant of the first condenser from the outflow of the refrigerant outlet of oil eliminator
The liquid refrigerant of entry exotherm condensation, high pressure is divided into two-way from the outflow of the refrigerant outlet of the first condenser 3, and the first via is passed through
Become the gas-liquid mixed refrigerant of middle pressure after first throttling device 4 and enter the first entrance of subcooler 5, evaporation endothermic becomes gas
State, gaseous refrigerant are flowed out from the gas vent of subcooler 5, and the second tunnel enters the second entrance of subcooler and is too cold, and are subcooled
Liquid refrigerant afterwards is flowed out from the liquid outlet of subcooler 5 after third throttling set 19 and check valve 6 and from second
Become the refrigerant gas of low-temp low-pressure after the liquid refrigerant mixing of condenser 13 after liquid storage device 9 and second throttling device 7
Liquid mixture enters evaporator 8 and absorbs amount of heat, and the low-temp low-pressure gaseous refrigerant after heat absorption evaporation passes through four-way reversing valve
18 are then drawn into the entrance of low pressure compressor 10, the refrigerating agent containing oil of medium temperature and medium pressure from the outlet of low pressure compressor 10 be discharged into
Enter the second oil eliminator 11, lubricating oil therein is flowed out from the oil export of the second oil eliminator 11 returns to entering for low pressure compressor 10
Mouthful, and the refrigerant of medium temperature and medium pressure is then divided into two strands from the outflow of the refrigerant outlet of the second oil eliminator 11, one passes through first
Shut-off valve 12 enters the liquid refrigerant that condensation heat release in the second condenser 13 becomes middle pressure, from the refrigerant of the second condenser 13
It is mixed after outlet outflow with the refrigerant exported from check valve 6, another way is by the second shut-off valve 14 and comes from 5 gas of subcooler
The entrance of high pressure compressor 1 is returned after the refrigerant mixing of body outlet.Third shut-off valve 16 is opened, and the 4th shut-off valve 17 is closed,
Cold water by third shut-off valve 16 with after water pump 15 enter the second condenser 13 in tentatively heated, become middle warm water, then
It enters back into the first condenser 3 to be further heated, enters water tank 20, second outlet of the hot water from water tank 20 after becoming high-temperature-hot-water
Outflow supply user.
Reverse circulation defrost pattern: the first shut-off valve 12 is opened, the second shut-off valve 14 is closed, third shut-off valve 16 is closed,
4th shut-off valve 17 is opened, and high pressure compressor 1 is closed, and low pressure compressor 10 is run, and water pump 15 is opened, and four-way reversing valve is switched to
Countercurrent fashion, makes its inner port and third orifice, and outlet is connected to second interface.The gaseous state oil-containing of high temperature and pressure freezes
Agent is discharged into the second oil eliminator 11, oil of the lubricating oil therein from the second oil eliminator 11 from the outlet of low pressure compressor 10
Outlet outflow returns to the entrance of low pressure compressor 10, and high temperature liquid refrigerant is then from the refrigerant outlet of the second oil eliminator 11
Outflow enters evaporator 8 (evaporator 8 actually plays the role of condenser at this time) by four-way reversing valve 18, by heat transfer
To the frost that evaporator air side is tied, frost is heated to be melted, and releases the refrigerant after heat is condensed by 7 He of second throttling device
Liquid storage device 9 absorbs into the second condenser 13 (the second condenser 13 actually plays the role of evaporator at this time) and comes from hot water
Heat and evaporate and become low-pressure steam, compressor air suction mouth is then returned to four-way reversing valve 18 by the first shut-off valve 12.
The hot water of water tank is pumped into the second condenser 13 and provides heat to refrigerant by water pump, and returns to water tank, and water tank temperature is declined.
Claims (2)
- The Teat pump boiler 1. a kind of two second compression level-ones of step coupling heating throttle, it is characterised in that: including high pressure compressor, Low pressure compressor, four-way reversing valve, first throttling device, second throttling device, the first condenser, the second condenser, subcooler, Liquid storage device, evaporator, water pump and water tank, the outlet of the high pressure compressor connect with the refrigerant inlet of first condenser Logical, the refrigerant outlet of first condenser connects by first throttling device and the first entrance of the subcooler all the way Logical, the gas vent of the subcooler is connected to the entrance of the high pressure compressor, the refrigerant outlet of first condenser Another way be connected to the second entrance of the subcooler, the liquid outlet of the subcooler is by third throttling set, unidirectional Valve is connected to liquid storage device entrance, and reservoir outlet is connected to the entrance of second throttling device, the outlet of the second throttling device It is connected to the entrance of the evaporator, the outlet of the evaporator is connected to the first entrance of the four-way reversing valve, and four-way changes The entrance of first outlet and low pressure compressor to valve is connected to, and the outlet of the low pressure compressor and the second of four-way reversing valve enter Mouth connection, the second outlet of four-way reversing valve are divided into two strands, one enters by refrigerant of the first shut-off valve and the second condenser Mouth connection, the refrigerant outlet of second condenser are connected to liquid storage device entrance；Another stock-traders' know-how crosses the second shut-off valve and high pressure The entrance of compressor is connected to；Total cooling water inlet is respectively communicated with by third shut-off valve and pump entrance and the 4th cut-off valve outlet, exit of pump and second The cooling water inlet of condenser is connected to, and the hot water outlet of second condenser is connected to the cooling water inlet of first condenser, The import of the hot water outlet of first condenser and the inlet communication of water tank, the first outlet of water tank and the 4th shut-off valve connects Logical, the second outlet of water tank is total hot water outlet.
- The Teat pump boiler 2. two second compression level-ones of step coupling heating as described in claim 1 throttle, it is characterised in that: institute The outlet for stating high pressure compressor is connect with the entrance of the first oil eliminator, the oil export of first oil eliminator and the high pressure The entrance of compressor is connected to, and the refrigerant inlet of the refrigerant outlet of first oil eliminator and first condenser connects It is logical；The outlet of the low pressure compressor is connect with the entrance of the second oil eliminator, the oil export of second oil eliminator and institute The entrance connection of low pressure compressor is stated, the refrigerant outlet of second oil eliminator and the entrance of four-way reversing valve connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956325.0U CN208431935U (en) | 2018-06-21 | 2018-06-21 | The two second compression level-ones throttling Teat pump boiler of step coupling heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956325.0U CN208431935U (en) | 2018-06-21 | 2018-06-21 | The two second compression level-ones throttling Teat pump boiler of step coupling heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431935U true CN208431935U (en) | 2019-01-25 |
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ID=65101757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820956325.0U Expired - Fee Related CN208431935U (en) | 2018-06-21 | 2018-06-21 | The two second compression level-ones throttling Teat pump boiler of step coupling heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208431935U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023227A (en) * | 2019-11-21 | 2020-04-17 | 东南大学 | Double-stage compression heat source tower heat pump system suitable for cold areas |
| CN115371289A (en) * | 2022-07-19 | 2022-11-22 | 日出东方控股股份有限公司 | Variable-pressure-ratio coupling heat pump system and control method thereof |
-
2018
- 2018-06-21 CN CN201820956325.0U patent/CN208431935U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023227A (en) * | 2019-11-21 | 2020-04-17 | 东南大学 | Double-stage compression heat source tower heat pump system suitable for cold areas |
| CN111023227B (en) * | 2019-11-21 | 2021-06-25 | 东南大学 | Double-stage compression heat source tower heat pump system suitable for cold areas |
| CN115371289A (en) * | 2022-07-19 | 2022-11-22 | 日出东方控股股份有限公司 | Variable-pressure-ratio coupling heat pump system and control method thereof |
| CN115371289B (en) * | 2022-07-19 | 2023-11-03 | 日出东方控股股份有限公司 | Variable-pressure ratio coupling heat pump system and control method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20210621 |