CN208238297U - Four-pipe system air-cooled unit - Google Patents
Four-pipe system air-cooled unit Download PDFInfo
- Publication number
- CN208238297U CN208238297U CN201820781184.3U CN201820781184U CN208238297U CN 208238297 U CN208238297 U CN 208238297U CN 201820781184 U CN201820781184 U CN 201820781184U CN 208238297 U CN208238297 U CN 208238297U
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- CN
- China
- Prior art keywords
- way valve
- valve port
- heat
- pipe system
- evaporator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000005057 refrigeration Methods 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a kind of four-pipe system air-cooled unit, compressor outlet, four-way valve port A, four-way valve port B, surface air cooler, check valve two, heat-recovery condenser, individual event valve three, refrigeration expansion valve, evaporator, four-way valve port D, four-way valve port C, gas-liquid separator, compressor inlet are sequentially connected in series to form refrigerating circuit by refrigerant line；Compressor outlet, four-way valve port A, four-way valve port D, evaporator, check valve four, heat-recovery condenser, check valve one, heating expansion valve, surface air cooler, four-way valve port B, four-way valve port C, gas-liquid separator, compressor inlet are sequentially connected in series to form heating circuit by refrigerant line；The side of surface air cooler is provided with condensation fan.The hot water of the four-pipe system air-cooled unit of the utility model is provided by heat recovering heat exchanger, and cold water is provided by evaporator, and refrigerating circuit and heating circuit are independent mutually, is not needed to install valve again and be converted, convenient for the installation of unit.
Description
Technical field
The utility model belongs to air-conditioner set equipment technical field, and in particular to a kind of four-pipe system air-cooled unit.
Background technique
Four-pipe system uses individual hot and cold water water supplying pipe and return water guard system, and inlet and outlet pipes install switchover control valve, mainly
It is the air-conditioning system used for whole year, i.e., has cold source and heat source to use at any time, conversion valve regulation is controlled by temperature control valve (TCV)
Hot and cold water.
Air-cooled modular cold and hot water unit is with air for cold (heat) source, using water as the central air conditioning of cooling supply (heat) medium
Group.As the integration apparatus of hot and cold dual-purpose type, cooling tower, water pump, boiler and phase is omitted in air-cooled modular cold and hot water unit
Many auxiliaries such as pipe-line system are answered, system structure is simple, and installation space is small, and maintenance management is convenient and energy saving, widely applicable.
Centralization composed by the end equipments such as host and fan coil, air-conditioning box, half traditional central air-conditioning system tool
There is the features such as flexible arrangement, control mode is various, being particularly suitable for the occasions such as market, hospital, hotel, factory, office block makes
With.It installs, connects with the mains, water route can be used.Therefore, air-cooled modular cold and hot water unit is commonly available to both without heat supply
Boiler, but without heating network or other reliable and stable heat sources, but the heating and ventilation project of annual air-conditioning is required, it is preferentially to be selected in design
Scheme.
Conventional modules unit is made of several big elements such as compressor, condenser, condensation fan, throttle valve, evaporator, this
The evaporator of unit provides cold water in summer；Hot water is provided in winter, hot water or cold water shares a heat exchanger, to meet different fields
Demand.
In refrigeration, heating mode conversion, it is necessary to valve be installed from engineering and converted, the installation of converting system is more
It is complicated.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of four-pipe system air-cooled units, are able to use same machine
Group is freezed independently of each other or is heated, and is easily installed.
In order to solve the above technical problems, the technical solution of the utility model is: four-pipe system air-cooled unit, the four-pipe system wind
Cold group includes: compressor, four-way valve, surface air cooler, heat-recovery condenser, evaporator, gas-liquid separator；The compressor goes out
Mouth, the four-way valve port A, the four-way valve port B, the surface air cooler, check valve two, the heat-recovery condenser, individual event
Valve three, refrigeration expansion valve, the evaporator, the four-way valve port D, the four-way valve port C, the gas-liquid separator, institute
Compressor inlet is stated to be sequentially connected in series to form refrigerating circuit by refrigerant line；The compressor outlet, the four-way valve port
A, the four-way valve port D, the evaporator, check valve four, the heat-recovery condenser, check valve one, heating expansion valve, institute
It states surface air cooler, the four-way valve port B, the four-way valve port C, the gas-liquid separator, the compressor inlet and passes through system
Refrigerant circuit is sequentially connected in series to form heating circuit；The side of the surface air cooler is provided with condensation fan.
Further, fluid reservoir is provided between the heat-recovery condenser and the check valve three.
Further, the heat-recovery condenser is finned cooler or evaporative condenser.
Further, the surface air cooler is finned heat exchanger.
After adopting the above technical scheme, the beneficial effects of the utility model are:
Compressor outlet, four-way valve port A, four-way valve port B, surface air cooler, check valve two, heat-recovery condenser, individual event
Valve three, refrigeration expansion valve, evaporator, four-way valve port D, four-way valve port C, gas-liquid separator, compressor inlet pass through refrigeration
Agent pipeline is sequentially connected in series to form refrigerating circuit；Compressor outlet, four-way valve port A, four-way valve port D, evaporator, check valve
Four, heat-recovery condenser, check valve one, heating expansion valve, surface air cooler, four-way valve port B, four-way valve port C, gas-liquid separation
Device, compressor inlet are sequentially connected in series to form heating circuit by refrigerant line；The side of surface air cooler is provided with condensation fan.This
The hot water of the four-pipe system air-cooled unit of utility model is provided by heat recovering heat exchanger, and cold water is provided by evaporator, is freezed back
Road and heating circuit are independent mutually, do not need to install valve again and be converted, convenient for the installation of unit.
Detailed description of the invention
Fig. 1 is that the four-pipe system air-cooled unit of the utility model is used for structural schematic diagram when freezing；
Fig. 2 is that the four-pipe system air-cooled unit of the utility model is used for structural schematic diagram when heating；
In figure, the direction of arrow represents the flow direction of refrigerant；
In figure, 1- compressor, E- compressor inlet, F- compressor outlet, 2- four-way valve, A, B, C, D respectively represent four-way
Four ports of valve, 3- surface air cooler, 4- heat expansion valve, 5- check valve one, 6- check valve two, 7- heat-recovery condenser, 8- storage
Flow container, 9- check valve three, 10- refrigeration expansion valve, 11- check valve four, 12- evaporator, 13- gas-liquid separator, 14- condensating wind
Machine, 15- refrigerant line.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
A kind of four-pipe system air-cooled unit, it includes compressor 1, the compressor inlet E and compressor outlet F of compressor 1 it
Between by refrigerant line 15 be connected with four-way valve 2, surface air cooler 3, check valve 26, heating expansion valve 4, check valve 1, heat return
Receive condenser 7, check valve 39, refrigeration expansion valve 10, evaporator 12, check valve 4 11 and gas-liquid separator 13, surface air cooler 3 one
Side is equipped with condensation fan 14.
The fluid reservoir 8 for being contained with refrigerant is provided between heat-recovery condenser 7 and check valve 39, fluid reservoir 8 is serially connected in
In the refrigerant circuit that refrigerant line 15 is formed.
Heat-recovery condenser 7 is preferably finned cooler or evaporative condenser.
Surface air cooler 3 is preferably finned heat exchanger.
As shown in connection with fig. 1, compressor outlet F, four-way valve port A, four-way valve port B, surface air cooler 3, check valve 26, heat
Recycle condenser 7, individual event valve 39, refrigeration expansion valve 10, evaporator 12, four-way valve port D, four-way valve port C, gas-liquid separation
Device 13, compressor inlet E are sequentially connected in series to form refrigerating circuit by refrigerant line 15.
The air intake duct of compressor 1 draws the refrigerant gas of low-temp low-pressure by compressor inlet E, from the row of compressor 1
The refrigerant gas of high temperature and pressure is discharged by compressor outlet F for tracheae, and refrigerant gas passes through the four-way valve port of four-way valve 2
AA enters four-way valve 2, four-way valve 2 is discharged by four-way valve port B, then refrigerant gas enters in surface air cooler 3, by unidirectional
Valve 26 enters in heat-recovery condenser 7, releases partial heat in heat-recovery condenser 7, becomes medium temperature highly pressurised liquid, makes
Cryogen enters in fluid reservoir 8 after exchanging heat in heat-recovery condenser 7, then, enters refrigeration expansion valve 10 by check valve 39,
Expansion decompression is low temperature and low pressure liquid in refrigeration expansion valve 10, and low temperature and low pressure liquid enters in evaporator 12, in evaporator 12
Middle absorption heat becomes low temperature low pressure gas, then enters four-way valve 2 by the four-way valve port D of four-way valve 2, passes through four-way valve
Port C is discharged four-way valve 2 and enters compressor 1 by compressor inlet E by the air intake duct of compressor 1 into gas-liquid separator 13
In, carry out refrigeration cycle next time.
As shown in connection with fig. 2, compressor outlet F, four-way valve port A, four-way valve port D, evaporator 12, check valve 4 11,
Heat-recovery condenser 7, check valve 1, heating expansion valve 4, surface air cooler 3, four-way valve port B, four-way valve port C, gas-liquid separation
Device 13, compressor inlet E are sequentially connected in series to form heating circuit by refrigerant line 15.
The air intake duct of compressor 1 draws the refrigerant gas of low-temp low-pressure by compressor inlet E, from the row of compressor 1
The refrigerant gas of high temperature and pressure is discharged by compressor outlet F for tracheae.The refrigerant gas of high temperature and pressure passes through four-way valve 2
Four-way valve port A enters four-way valve 2, four-way valve 2 is discharged by four-way valve port D, subsequently into evaporator 12, by unidirectional
Valve 4 11, which enters in heat-recovery condenser 7, releases heat, becomes medium temperature highly pressurised liquid, medium temperature highly pressurised liquid enters fluid reservoir 8
Entered in heating expansion valve 4 by check valve 1 again later, expansion decompression is low temperature and low pressure liquid, and low temperature and low pressure liquid enters table
In cooler 3, the heat of air is absorbed in surface air cooler 3, becomes low-pressure low-temperature gas, then pass through the four-way valve port B of four-way valve 2
Into four-way valve 2, four-way valve 2 is then discharged by four-way valve port C, subsequently into gas-liquid separator 13, by the suction of compressor 1
Tracheae is entered in compressor 1 by compressor inlet E, carries out heating circulation next time.
The hot water of this unit is provided by heat-recovery condenser 7, and cold water is provided by evaporator 12；Hot water or cold water mentions
For being provided by different heat exchangers.Refrigerating circuit and heating circuit are independent mutually, do not need additionally to install valve again and are turned
It changes, convenient for the installation of four-pipe system air-cooled unit.
Technical characteristic (such as check valve one, check valve two, check valve with serial number name being related in this specification
Three, check valve four etc.), it is only for each technical characteristic is distinguished, the positional relationship between each technical characteristic is not represented, installs
Sequence and job order etc..
Although the foregoing describe specific embodiment of the present utility model, it should be appreciated by those skilled in the art,
Described embodiment is only a part of the embodiment of the utility model, and instead of all the embodiments, these are only to lift
Example explanation, the protection scope of the utility model is to be defined by the appended claims.Those skilled in the art is without departing substantially from this
It, can be to these embodiments under any creative labor of no process under the premise of the principle and essence of utility model
Various changes or modifications are made, but these change and modification each fall within the protection scope of the utility model.
Claims (4)
1. four-pipe system air-cooled unit, which is characterized in that the four-pipe system air-cooled unit include: compressor, four-way valve, surface air cooler,
Heat-recovery condenser, evaporator, gas-liquid separator；
The compressor outlet, the four-way valve port A, the four-way valve port B, the surface air cooler, check valve two, the heat
Recycle condenser, individual event valve three, refrigeration expansion valve, the evaporator, the four-way valve port D, the four-way valve port C, institute
State gas-liquid separator, the compressor inlet is sequentially connected in series to form refrigerating circuit by refrigerant line；
The compressor outlet, the four-way valve port A, the four-way valve port D, the evaporator, check valve four, the heat
Recycle condenser, check valve one, heating expansion valve, the surface air cooler, the four-way valve port B, the four-way valve port C, institute
State gas-liquid separator, the compressor inlet is sequentially connected in series to form heating circuit by refrigerant line；
The side of the surface air cooler is provided with condensation fan.
2. four-pipe system air-cooled unit according to claim 1, which is characterized in that the heat-recovery condenser and described unidirectional
Fluid reservoir is provided between valve three.
3. four-pipe system air-cooled unit according to claim 1, which is characterized in that the heat-recovery condenser is finned cold
Condenser or evaporative condenser.
4. four-pipe system air-cooled unit according to claim 1, which is characterized in that the surface air cooler is finned heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781184.3U CN208238297U (en) | 2018-05-24 | 2018-05-24 | Four-pipe system air-cooled unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820781184.3U CN208238297U (en) | 2018-05-24 | 2018-05-24 | Four-pipe system air-cooled unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208238297U true CN208238297U (en) | 2018-12-14 |
Family
ID=64581192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820781184.3U Expired - Fee Related CN208238297U (en) | 2018-05-24 | 2018-05-24 | Four-pipe system air-cooled unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208238297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829149A (en) * | 2020-07-21 | 2020-10-27 | 山东雅士股份有限公司 | Four-pipe heating unit recovery system and control method thereof |
| CN114198941A (en) * | 2021-12-16 | 2022-03-18 | 广东纽恩泰新能源科技发展有限公司 | Triple co-generation unit |
-
2018
- 2018-05-24 CN CN201820781184.3U patent/CN208238297U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829149A (en) * | 2020-07-21 | 2020-10-27 | 山东雅士股份有限公司 | Four-pipe heating unit recovery system and control method thereof |
| CN111829149B (en) * | 2020-07-21 | 2021-11-09 | 山东雅士股份有限公司 | Four-pipe heating unit recovery system and control method thereof |
| CN114198941A (en) * | 2021-12-16 | 2022-03-18 | 广东纽恩泰新能源科技发展有限公司 | Triple co-generation unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 |