CN205747566U - A kind of Two-stage Compression high temperature heat pump system - Google Patents
A kind of Two-stage Compression high temperature heat pump system Download PDFInfo
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- CN205747566U CN205747566U CN201620654797.1U CN201620654797U CN205747566U CN 205747566 U CN205747566 U CN 205747566U CN 201620654797 U CN201620654797 U CN 201620654797U CN 205747566 U CN205747566 U CN 205747566U
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Abstract
The utility model discloses a kind of Two-stage Compression high temperature heat pump system.nullThe exhaustor of low-pressure stage compressor bank of the present utility model is connected with exhaust header，The bypass duct one of exhaust header is connected with intercooler air inlet pipe，The bypass duct two of exhaust header is connected with preheater refrigerant inlet by electric control valve，Described intercooler refrigerant gas outlet is connected with high pressure stage compressor，The outlet of described high pressure stage compressor is connected with condenser refrigerant inlet，Described preheater refrigerant outlet is divided into branch road one and branch road two with condenser refrigerant outlet after check valve merges，Branch road is connected with the liquid inlet pipeline section of intercooler once the first heating power expansion valve，Branch road two is divided into again two branch roads after sub-cooling coil，Article one, branch road connects through the second heating power expansion valve and the first evaporator refrigerant entrance，Another article branch road connects through the 3rd heating power expansion valve and the second evaporator refrigerant entrance，Described first evaporator refrigerant outlet、Second vaporizer refrigerant outlet after evaporating pressure regulating valve is all connected with suction manifold.This utility model decreases the energy loss of heat exchange, it is possible to save the energy.
Description
Technical field
This utility model relates to high temperature heat pump technical field, particularly relates to a kind of Two-stage Compression high temperature heat pump system.
Background technology
Make full use of waste heat and low-temperature heat source is conducive to saving the energy, the waste water in life and sewage, surface water, subsoil water
Etc. water resource is stored substantial amounts of low-grade heat.People's life and industrial processes need substantial amounts of high-temperature-hot-water, logical
Cross heat pump techniques to produce high-temperature-hot-water and be conducive to saving the utilization of other resources.
At present, use single stage compress to be difficult to obtain the high-temperature-hot-water of ideal temperature, and common two stages of compression can not basis
Hot water demand and be adjusted, therefore, for this problem, it is proposed that a kind of Two-stage Compression high temperature heat pump system, this system can
According to hot water demand, system is automatically adjusted.
Utility model content
The purpose of this utility model is for technological deficiency present in prior art, and provides a kind of being conducive to save
The Two-stage Compression high temperature heat pump system of the energy.
This utility model is achieved through the following technical solutions:
Including low-pressure stage compressor bank and high pressure stage compressor, the exhaustor of described low-pressure stage compressor bank and exhaust header
Connecting, the bypass duct one of exhaust header is connected with intercooler air inlet pipe, and the bypass duct two of exhaust header passes through motorized adjustment
Valve is connected with preheater refrigerant inlet, and described intercooler refrigerant gas outlet is connected with high pressure stage compressor, described
High pressure stage compressor outlet is connected with condenser refrigerant inlet, and described preheater refrigerant outlet is through check valve and condenser system
Cryogen outlet is divided into branch road one and branch road two after merging, and branch road is once the liquid inlet of the first heating power expansion valve Yu intercooler
Pipeline section connects, and branch road two is divided into again two branch roads after sub-cooling coil, and a branch road is through the second heating power expansion valve and the first evaporation
Device refrigerant inlet connects, another article of branch road through the 3rd heating power expansion valve and the connection of the second evaporator refrigerant entrance, described the
One evaporator refrigerant outlet, second vaporizer refrigerant outlet after evaporating pressure regulating valve are all connected with suction manifold；
Cooling watery vomiting stream enters cold-producing medium in condenser, with condenser after preheater and forms adverse current.
Described low-pressure stage compressor bank is composed in parallel by least two compressors, and described high pressure stage compressor uses frequency conversion pressure
Contracting machine, arranges sub-cooling coil in described intercooler.
Described system can utilize Different hypothermia thermal source, described system owing to using the vaporizer of two groups of difference evaporating temperatures
High-temperature-hot-water can be provided, and can automatically adjust according to hot water demand.
Compared with prior art, the beneficial effects of the utility model are:
1, Two-stage Compression high temperature heat pump system of the present utility model passes through hiigh pressure stage frequency-changeable compressor and preheater pipeline
On the interaction of electric control valve can automatically adjust according to the demand of hot water.
2, Two-stage Compression high temperature heat pump system of the present utility model subtracts owing to cooling water first passes through after preheater heats
Lack cooling water and the heat transfer temperature difference of condenser, decreased the energy loss of heat exchange, it is possible to save the energy.
3, Two-stage Compression high temperature heat pump system of the present utility model is by using the vaporizer of different evaporating temperature, therefore may be used
With the heat in the low-temperature heat source of recovery different temperatures.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model a kind of Two-stage Compression high temperature heat pump system.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
The system diagram of this utility model a kind of Two-stage Compression high temperature heat pump system is as it is shown in figure 1, a kind of Two-stage Compression high temperature
Heat pump, including low-pressure stage compressor bank and high pressure stage compressor, the exhaustor of described low-pressure stage compressor bank 1 and aerofluxus collection
Pipe 2 connects, and the bypass duct one of exhaust header is connected with intercooler 8 air inlet pipe, and the bypass duct two of another exhaust header is by electricity
Dynamic regulation valve 3 is connected with preheater 6 refrigerant inlet, described intercooler 8 refrigerant gas outlet and high pressure stage compressor 4
Connecting, the outlet of described high pressure stage compressor 4 is connected with condenser 5 refrigerant inlet, and described preheater 6 refrigerant outlet is through unidirectional
Valve 7 is divided into branch road one and branch road two with condenser 5 refrigerant outlet after merging, branch road is once the first heating power expansion valve 9 and centre
The liquid inlet pipeline section of cooler 8 connects, and branch road two is divided into again two branch roads after sub-cooling coil 10, and a branch road is through the second warm
Power expansion valve 12 is connected with the first vaporizer 11 refrigerant inlet, and another article of branch road is through the 3rd heating power expansion valve 13 and the second evaporation
Device 16 refrigerant inlet connects, and described first vaporizer 11 refrigerant outlet, the second vaporizer 16 adjust 14 joint valves through evaporating pressure
After refrigerant outlet be all connected with suction manifold 15；Described cooling watery vomiting stream enters condenser 5 after preheater 6, with cold
In condenser 5, cold-producing medium forms adverse current.
Described low-pressure stage compressor bank 1 is composed in parallel by two or multiple compressors, and described high pressure stage compressor 4 uses
Variable ratio frequency changer compressor, described sub-cooling coil 10 is as in intercooler 8.
Pass through the refrigerant vapour of first vaporizer the 11, second vaporizer 16 generation of different evaporating temperatures through air-breathing collection
After pipe 15 mixing after low-pressure stage compressor bank 1 is compressed, a part of supercharging refrigerant vapour enters intercooler 8 and the first heat
It is full that the refrigerant liquid produced after power expansion valve 9 throttling generates after mixing and mixing heat with the refrigerant liquid carrying out condenser 5
Entering high pressure stage compressor 4 with gas, the high-temperature high-pressure refrigerant after high pressure stage compressor 4 compresses enters condenser 5 and occurs
Condensation, another part refrigerant vapour enters preheater 6 through electric control valve 3 and condenses, and heat is passed to cooling water, rises
Cooling water after temperature travels further into condenser and carries out the generation high-temperature-hot-water that heats up.When required hot water amount reduces, and condensation is negative
When lotus changes, high pressure stage compressor 4 can be according to Load Regulation rotating speed, and electric control valve 3 regulation simultaneously enters preheater 6
In refrigerant flow, the effect in conjunction with both makes the pressure in interconderser between the two be in energy consumption minimum.
Described Two-stage Compression high temperature heat pump system is by the electric adjustable on hiigh pressure stage frequency-changeable compressor and preheater pipeline
The interaction of joint valve can automatically adjust according to the demand of hot water.Described system first passes through preheater due to cooling water
Decrease cooling water and the heat transfer temperature difference of condenser after heating, decrease the energy loss of heat exchange, it is possible to save the energy.Institute
System of stating, by using the vaporizer of different evaporating temperature, therefore can reclaim the heat in the low-temperature heat source of different temperatures.
Described system can utilize Different hypothermia thermal source, described system owing to using the vaporizer of two groups of difference evaporating temperatures
High-temperature-hot-water can be provided, and can automatically adjust according to hot water demand.
The above is only preferred implementation of the present utility model, it is noted that general for the art
For logical technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection domain of the present utility model.
Claims (2)
1. a Two-stage Compression high temperature heat pump system, it is characterised in that include low-pressure stage compressor bank and high pressure stage compressor, institute
The exhaustor stating low-pressure stage compressor bank is connected with exhaust header, and the bypass duct one of exhaust header is with intercooler air inlet pipe even
Connecing, the bypass duct two of exhaust header is connected with preheater refrigerant inlet by electric control valve, and described intercooler freezes
Agent gas outlet is connected with high pressure stage compressor, and the outlet of described high pressure stage compressor is connected with condenser refrigerant inlet, described
Preheater refrigerant outlet is divided into branch road one and branch road two with condenser refrigerant outlet after check valve merges, and branch road is once
One heating power expansion valve is connected with the liquid inlet pipeline section of intercooler, and branch road two is divided into again two branch roads after sub-cooling coil,
Article one, branch road connects through the second heating power expansion valve and the first evaporator refrigerant entrance, and another article of branch road is through the 3rd heating power expansion valve
Being connected with the second evaporator refrigerant entrance, described first evaporator refrigerant outlet, the second vaporizer regulate through evaporating pressure
Refrigerant outlet after valve is all connected with suction manifold；Cooling watery vomiting stream enters in condenser, with condenser after preheater
Cold-producing medium forms adverse current.
Two-stage Compression high temperature heat pump system the most according to claim 1, it is characterised in that described low-pressure stage compressor bank by
At least two compressors compose in parallel, and described high pressure stage compressor uses frequency-changeable compressor, arranges in described intercooler
Cooling coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654797.1U CN205747566U (en) | 2016-06-28 | 2016-06-28 | A kind of Two-stage Compression high temperature heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620654797.1U CN205747566U (en) | 2016-06-28 | 2016-06-28 | A kind of Two-stage Compression high temperature heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205747566U true CN205747566U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620654797.1U Expired - Fee Related CN205747566U (en) | 2016-06-28 | 2016-06-28 | A kind of Two-stage Compression high temperature heat pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144040A (en) * | 2017-05-26 | 2017-09-08 | 天津大学 | Multi-stage compression double parallel piston type carbon dioxide heat pump system |
| CN109177691A (en) * | 2018-10-16 | 2019-01-11 | 西安交通大学 | A kind of electric automobile heat-pump air-conditioning system and its control method |
| CN109210658A (en) * | 2018-11-02 | 2019-01-15 | 广东欧亚制冷设备制造有限公司 | A kind of water source heat pump units and its control method with cold recovery function |
| CN109724293A (en) * | 2019-02-26 | 2019-05-07 | 天津商业大学 | The CO of the absorption supercooling of Driven by Solar Energy2Trans-critical cycle double-stage compressive refrigerating system |
| CN112503787A (en) * | 2020-12-14 | 2021-03-16 | 广州兰石技术开发有限公司 | Refrigerant supply system |
| CN113251698A (en) * | 2021-04-29 | 2021-08-13 | 太原理工大学 | Large-temperature-difference multistage compression mixed working medium heat pump system suitable for recovering waste heat of power plant |
-
2016
- 2016-06-28 CN CN201620654797.1U patent/CN205747566U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144040A (en) * | 2017-05-26 | 2017-09-08 | 天津大学 | Multi-stage compression double parallel piston type carbon dioxide heat pump system |
| CN107144040B (en) * | 2017-05-26 | 2023-09-08 | 天津大学 | Multistage compression double-compressor parallel piston type carbon dioxide heat pump system |
| CN109177691A (en) * | 2018-10-16 | 2019-01-11 | 西安交通大学 | A kind of electric automobile heat-pump air-conditioning system and its control method |
| CN109177691B (en) * | 2018-10-16 | 2024-01-09 | 西安交通大学 | Electric automobile heat pump air conditioning system and control method thereof |
| CN109210658A (en) * | 2018-11-02 | 2019-01-15 | 广东欧亚制冷设备制造有限公司 | A kind of water source heat pump units and its control method with cold recovery function |
| CN109724293A (en) * | 2019-02-26 | 2019-05-07 | 天津商业大学 | The CO of the absorption supercooling of Driven by Solar Energy2Trans-critical cycle double-stage compressive refrigerating system |
| CN112503787A (en) * | 2020-12-14 | 2021-03-16 | 广州兰石技术开发有限公司 | Refrigerant supply system |
| CN113251698A (en) * | 2021-04-29 | 2021-08-13 | 太原理工大学 | Large-temperature-difference multistage compression mixed working medium heat pump system suitable for recovering waste heat of power plant |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170628 |