CN207501480U - A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit - Google Patents
A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit Download PDFInfo
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- CN207501480U CN207501480U CN201721551169.1U CN201721551169U CN207501480U CN 207501480 U CN207501480 U CN 207501480U CN 201721551169 U CN201721551169 U CN 201721551169U CN 207501480 U CN207501480 U CN 207501480U
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Abstract
The utility model provides a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit, including four-way valve module, compressor, check valve assembly, increasing enthalpy pipe, double-tube heat exchanger, compensator, finned heat exchanger, economizer, the four-way valve module is equipped with D interface, C interface, S interfaces, E interface, the left side of the compressor is equipped with increasing enthalpy pipe, the right side upper end connection of the increasing enthalpy pipe and economizer.A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit of the utility model, using air injection enthalpy-increasing frequency-changeable compressor, increasing enthalpy mouth is set in compressor side, major cycle and air injection enthalpy-increasing branch cycle are set, enable the operation that unit at low ambient temperatures can be normally and efficiently, keep indoor heating amount.
Description
【Technical field】
The utility model is related to technical field of air-conditioning heat pumps, more particularly to a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit.
【Background technology】
Air heat pump is widely used as a kind of energy saver, heat pump system summer can provide refrigeration, winter can be with
Heating is provided, it is easy to operate without installing cooling tower, using extensive.
Existing plain edition heat pump system, in the area that Xia Redong is cold, since winter outdoor temperature is relatively low, refrigerant is through supercooling
After condenser heat exchange, evaporator is directly flowed back to by throttle part.In this way with the promotion of condenser temperature, unit performance gradually drops
It is low.When environment of the unit in more low temperature, coolant quantity deficiency, pressure ratio because flowing back to compressor lead to the fortune of compressor due to excessive
Turn very fast raising, but heating effect cannot be met, base of evaporator easily freezes, and chassis ice is caused to block up, and influences system and normally transports
Row.
【Utility model content】
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of air-cooled heat of low temperature frequency conversion increasing enthalpy
Pumping system using air injection enthalpy-increasing frequency-changeable compressor, sets increasing enthalpy mouth in compressor side, sets major cycle and air injection enthalpy-increasing branch
Cycle so that unit can at low ambient temperatures can be normally and efficiently operation, keep indoor heating amount.
To achieve the above object, the utility model proposes a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit, including four-way
Valve module, compressor, check valve assembly, increasing enthalpy pipe, double-tube heat exchanger, compensator, finned heat exchanger, economizer, described four
Port valve component is equipped with D interface, C interface, S interfaces, E interface, and the outlet of the compressor is connect with D interface, the compression
The import of machine is equipped with gas-liquid separator, and the gas-liquid separator is connect with S interfaces, and the left side of the compressor is equipped with increasing enthalpy
The right side upper end of pipe, the increasing enthalpy pipe and economizer connects, and the upper end of the E interface and double-tube heat exchanger connects, described
Double-tube heat exchanger lower end and compensator one end connect, the check valve assembly be equipped with A interfaces and B interface, it is described
The other end of compensator is connected by the left side upper end of A interfaces and economizer, and the left side lower end of the economizer passes through B interface
It is connect with the lower end of finned heat exchanger, the upper end of the finned heat exchanger is connect with C interface.
Preferably, the economizer is brazing plate type heat exchanger, the brazing plate type heat exchanger is divided into condenser
With with the evaporator on the right side of condenser, the increasing enthalpy pipe connect with upper end of evaporator, the evaporator and A interfaces
Between be equipped with electric expansion valve, the upper end of the electric expansion valve is equipped with temperature sensor, the temperature sensor it is upper
End is equipped with pressure sensor, and the pressure sensor is connect with A interfaces.
Preferably, the compressor is DC frequency-changeable compressor, intermediate cavity is equipped in the compressor, it is described
The left side of intermediate cavity is equipped with increasing enthalpy mouth, and the increasing enthalpy mouth is connect with increasing enthalpy pipe, and the right side of the intermediate cavity is equipped with pressure valve.
Preferably, being equipped with shell-side flow path in the double-tube heat exchanger, the right side of the shell-side flow path is equipped with wind turbine
Coil pipe, the fan coil are equipped with several fan blades, and the lower section of the fan blade is equipped with motor, the fan coil
Top is equipped with diversion pipe, the upper end connection of the diversion pipe and shell-side flow path.
The beneficial effects of the utility model：The utility model uses air injection enthalpy-increasing frequency-changeable compressor, is set in compressor side
There is increasing enthalpy mouth, major cycle and air injection enthalpy-increasing branch cycle are set so that the operation that unit at low ambient temperatures can be normally and efficiently,
Play the role of increase heating capacity, reduce delivery temperature and increase unit efficiency, extend the service life of compressor.
The feature and advantage of the utility model will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structure diagram of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit of the utility model；
Fig. 2 is the structure diagram of compressor.
In figure：1- four-ways valve module, 2- compressors, 3- check valve assemblies, 4- increasing enthalpies pipe, 5- double-tube heat exchangers, 6- balances
Tank, 7- finned heat exchangers, 8- economizers, 11-D interfaces, 12-C interfaces, 13-S interfaces, 14-E interfaces, 21- gas-liquid separators,
22- intermediate cavities, 31-A interfaces, 32-B interfaces, 51- shell-side flow paths, 52- fan coils, 81- condensers, 82- evaporators, 83- electricity
Sub- expansion valve, 84- temperature sensors, 85- pressure sensors, 221- increasing enthalpies mouth, 222- pressure valve, 521- fan blades, 522- motors,
523- diversion pipes.
【Specific embodiment】
To make the objectives, technical solutions and advantages of the present invention clearer, below by accompanying drawings and embodiments,
The present invention is further described in detail.However, it should be understood that specific embodiment described herein is only used to solve
The utility model is released, the range being not intended to limit the utility model.In addition, it in the following description, is omitted to known features
With the description of technology, to avoid the concept of the utility model is unnecessarily obscured.
As depicted in figs. 1 and 2, the utility model provides a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit, including four-way valve
Component 1, compressor 2, check valve assembly 3, increasing enthalpy pipe 4, double-tube heat exchanger 5, compensator 6, finned heat exchanger 7, economizer 8, institute
The four-way valve module 1 stated is equipped with D interface 11, C interface 12, S interfaces 13, E interface 14, the outlet of the compressor 2 and D interface
11 connections, the import of the compressor 2 are equipped with gas-liquid separator 21, and the gas-liquid separator 21 is connect with S interfaces 13, institute
The left side of compressor 2 stated is equipped with increasing enthalpy pipe 4, and the increasing enthalpy pipe 4 is connect with the right side upper end of economizer 8, the E interface
14 connect with the upper end of double-tube heat exchanger 5, and the lower end of the double-tube heat exchanger 5 is connect with one end of compensator 6, the list
A interfaces 31 and B interface 32 are equipped with to valve module 3, the other end of the compensator 6 passes through the left side of A interfaces 31 and economizer 8
Upper end connects, and the left side lower end of the economizer 8 is connect by B interface 32 with the lower end of finned heat exchanger 7, the fin
The upper end of heat exchanger 7 is connect with C interface 12；The economizer 8 be brazing plate type heat exchanger, the brazing plate type heat exchanger
It is divided into condenser 81 and is connect with the evaporator 82 positioned at 81 right side of condenser, the increasing enthalpy pipe 4 with the upper end of evaporator 82,
Electric expansion valve 83 is equipped between the evaporator 82 and A interfaces 31, the upper end of the electric expansion valve 83 is equipped with temperature
Sensor 84, the upper end of the temperature sensor 84 are equipped with pressure sensor 85, the pressure sensor 85 and A interfaces 31
Connection；The compressor 2 is DC frequency-changeable compressor, and intermediate cavity 22, the intermediate cavity 22 are equipped in the compressor 2
Left side be equipped with increasing enthalpy mouth 221, the increasing enthalpy mouth 221 connect with increasing enthalpy pipe 4, and the right side of the intermediate cavity 22 is equipped with pressure
Valve 222；Shell-side flow path 51 is equipped in the double-tube heat exchanger 5, the right side of the shell-side flow path 51 is equipped with fan coil 52,
The fan coil 52 is equipped with several fan blades 521, and the lower section of the fan blade 521 is equipped with motor 522, the wind turbine
The top of coil pipe 52 is equipped with diversion pipe 523, and the diversion pipe 523 is connect with the upper end of shell-side flow path 51.
Utility model works process：
During the work time, unit is equipped with major cycle and spray to a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit of the utility model
Gas increasing enthalpy branch recycles, on the one hand, the gas of low-temp low-pressure enters in compressor 2 in major cycle, and high temperature is compressed into through compressor 2
The gas of high pressure carries out heat exchange through D interface 11 and 14 sleeve pipe heat exchanger 5 of E interface, and the gas of high temperature and pressure is cooled shape
Into the liquid refrigerants of cryogenic high pressure, while the heat released of the gas of high temperature and pressure is used for the flow in heating muff heat exchanger 5,
Water heating is made to become hot water, hot water flows into fan coil 52 by shell-side flow path 51 and carries out heat exchange, and hot water, which is put into, becomes cold water
It is returned in double-tube heat exchanger 5 by diversion pipe 523, the cold wind in fan coil 52 absorbs heat and becomes hot wind, passes through fan blade 521
Effect blow to interior and heated；The liquid refrigerants of cryogenic high pressure flows into the pressure balance that compensator 6 carries out liquid, Ran Houjing
The condenser 81 for crossing A interfaces 31 into economizer 8 carries out the liquid refrigerants that heat exchange forms low-temp low-pressure, and the liquid of low-temp low-pressure is cold
Matchmaker enters by B interface 32 in finned heat exchanger 7, itself is evaporated after the heat in the liquid refrigerants absorption air of low-temp low-pressure,
Become the gaseous coolant of low-temp low-pressure, the gaseous coolant of low-temp low-pressure returns to compressor 2 and complete by C interface 12 and S interfaces 13
Major cycle；On the other hand, be divided into two branch when refrigerant flows through economizer 8, a branch be above-mentioned major cycle, another branch
It is recycled for air injection enthalpy-increasing branch, a part of refrigerant first passes around pressure sensor 85, temperature sensor 84 is measured, and will measure
Numeric feedback electron expansion valve 83, electric expansion valve 83 control the degree of superheat and emitted dose of the liquid refrigerants of cryogenic high pressure
System forms the liquid refrigerants of low-temp low-pressure, and the liquid refrigerants of low-temp low-pressure exchanges heat through evaporator 82, forms low-temp low-pressure
Gaseous coolant flows into intermediate cavity 22 through increasing enthalpy pipe 4, and the control through pressure valve 222 is ready to carry out tonifying Qi to compressor 2.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification, equivalent replacement or improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit, it is characterised in that：Including four-way valve module (1), compressor (2), list
It is described to valve module (3), increasing enthalpy pipe (4), double-tube heat exchanger (5), compensator (6), finned heat exchanger (7), economizer (8)
Equipped with D interface (11), C interface (12), S interfaces (13), E interface (14), the compressor (2) go out four-way valve module (1)
Mouth is connect with D interface (11), and the import of the compressor (2) is equipped with gas-liquid separator (21), the gas-liquid separator
(21) it is connect with S interfaces (13), the left side of the compressor (2) is equipped with increasing enthalpy pipe (4), the increasing enthalpy pipe (4) and economy
The right side upper end connection of device (8), the E interface (14) are connect with the upper end of double-tube heat exchanger (5), the double-tube heat exchanger
(5) lower end is connect with the one end of compensator (6), and the check valve assembly (3) is equipped with A interfaces (31) and B interface (32), institute
The other end of compensator (6) stated is connect by A interfaces (31) with the left side upper end of economizer (8), the economizer (8)
Left side lower end is connect by B interface (32) with the lower end of finned heat exchanger (7), and the upper end of the finned heat exchanger (7) connects with C
Mouth (12) connection.
2. a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit as described in claim 1, it is characterised in that：The economizer
(8) it is brazing plate type heat exchanger, the brazing plate type heat exchanger is divided into condenser (81) and on the right side of condenser (81)
Evaporator (82), the increasing enthalpy pipe (4) are connect with the upper end of evaporator (82), the evaporator (82) and A interfaces (31)
Between be equipped with electric expansion valve (83), the upper end of the electric expansion valve (83) is equipped with temperature sensor (84), the temperature
The upper end for spending sensor (84) is equipped with pressure sensor (85), and the pressure sensor (85) is connect with A interfaces (31).
3. a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit as described in claim 1, it is characterised in that：The compressor
(2) it is DC frequency-changeable compressor, intermediate cavity (22) is equipped in the compressor (2), the intermediate cavity is set on the left of (22)
There is increasing enthalpy mouth (221), the increasing enthalpy mouth (221) is connect with increasing enthalpy pipe (4), and the right side of the intermediate cavity (22) is equipped with pressure
Valve (222).
4. a kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit as described in claim 1, it is characterised in that：The sleeve heat exchange
Shell-side flow path (51) is equipped in device (5), the right side of the shell-side flow path (51) is equipped with fan coil (52), the fan unit
It manages (52) and is equipped with several fan blades (521), the lower section of the fan blade (521) is equipped with motor (522), the fan coil
(52) top is equipped with diversion pipe (523), and the diversion pipe (523) is connect with the upper end of shell-side flow path (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551169.1U CN207501480U (en) | 2017-11-20 | 2017-11-20 | A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721551169.1U CN207501480U (en) | 2017-11-20 | 2017-11-20 | A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit |
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| Publication Number | Publication Date |
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| CN207501480U true CN207501480U (en) | 2018-06-15 |
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| CN201721551169.1U Active CN207501480U (en) | 2017-11-20 | 2017-11-20 | A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386993A (en) * | 2018-09-17 | 2019-02-26 | 合肥伽帝芙环境设备科技有限公司 | A kind of wieldy heat pump apparatus of air source |
-
2017
- 2017-11-20 CN CN201721551169.1U patent/CN207501480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386993A (en) * | 2018-09-17 | 2019-02-26 | 合肥伽帝芙环境设备科技有限公司 | A kind of wieldy heat pump apparatus of air source |
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