CN205448421U - Adopt air conditioner of steam circulation defrosting - Google Patents
Adopt air conditioner of steam circulation defrosting Download PDFInfo
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- CN205448421U CN205448421U CN201620199353.3U CN201620199353U CN205448421U CN 205448421 U CN205448421 U CN 205448421U CN 201620199353 U CN201620199353 U CN 201620199353U CN 205448421 U CN205448421 U CN 205448421U
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Abstract
The utility model relates to an adopt air conditioner of steam circulation defrosting, it includes compressor, cross valve, evaporimeter, condenser, vapour and liquid separator, the compressor has gas vent and return -air mouth, and gas vent department is equipped with first branch road and second branch road, the cross valve has evaporimeter end, the end of breathing in, exhaust end and four ports of condenser end, the condenser is equipped with refrigerant flow path and defrosting flow path, the one end and the second branch road intercommunication of defrosting flow path, the other end of defrosting flow path passes through the pipeline intercommunication between pipeline and second port and the liquid storage pot. The beneficial effects of the utility model are that: the utility model discloses an adopt that high temperature and high pressure coolant is gaseous to realize the defrosting to the condenser, the device can realize the defrosting to the condenser on the basis of not breaking the process of heating, improve the travelling comfort in heat supply room and save electric power.
Description
Technical field
This utility model relates to a kind of air-conditioner using hot gas cycle to defrost.
Background technology
Water chiller/heater system is made up of compressor, cross valve assembly, finned outdoor heat exchanger, heating power expansion valve throttling, shell and tube exchanger and gas-liquid separator.When system enters refrigeration mode, the High Temperature High Pressure cold media gas of compressor compresses arrives finned outdoor heat exchanger through cross valve, and is cooled to the coolant of liquid by finned outdoor heat exchanger.The coolant of liquid throttles into the liquid coolant of low-temp low-pressure again through heating power expansion valve.The liquid coolant of low-temp low-pressure enters shell and tube exchanger and carries out water heat exchange evaporation, returns gas-liquid separator and carry out gas-liquid separation after evaporation, eventually passes back to compressor, forms kind of refrigeration cycle.
The shortcoming of existing water chiller/heater system is: during refrigeration, compressor return air temperature is too high, causes compressor load excessive, thus adds the power consumption of compressor, further such that Energy Efficiency Ratio is too low.On the other hand, system easily occurs that compressor exhaust temperature is too high and shuts down.Additionally, during heating, outdoor heat exchanger fin easily occurs frost, causes heating capacity to decline, and the action that occurs frequently defrosting.
Existing Defrost mode mainly has following several: (1), electric defrosting mode, and its power consumption is high, and Energy harvesting is unreasonable, and defrosting is costly；(2), reverse cycle defrosting mode, defrosting during, switched by four-way change-over valve, indoor set is as vaporizer, take heat from indoor, indoor set is blown a cold wind over, but the method defrosting time is long, indoor comfort is poor, there is also defrost scarce capacity, slow problem simultaneously；(3), hot gas bypass defrosting mode, defrosting energy from the high-temperature exhaust air of compressor, reduce to indoor heating amount, and defrosting time is long, suction superheat is low, and high-temperature exhaust air pressure is high simultaneously, compressor is produced certain impact, the safety of harm compressor.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of air-conditioner using hot gas cycle to defrost, and solves above-mentioned the deficiencies in the prior art.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of air-conditioner using hot gas cycle to defrost, and it includes, compressor, compressor has air vent and gas returning port, and exhaust ports is provided with the first branch road and the second branch road；Cross valve, cross valve has evaporator end, suction end, exhaust end and four ports of condenser end, the exhaust end of cross valve and the connection of the first branch road；Vaporizer, one end of vaporizer is connected with the evaporator end of cross valve by pipeline；Condenser, is provided with refrigerant flow path and defrosting stream in condenser；First port of refrigerant flow path is connected with the other end of vaporizer by pipeline, and the second port of refrigerant flow path is connected with the condenser end of cross valve by pipeline, and the pipeline between the second port and the cross valve of refrigerant flow path is provided with fluid reservoir；One end of defrosting stream connects with the second branch road, and the other end of defrosting stream is by the pipeline communication between pipeline and the second port and fluid reservoir；Gas-liquid separator, gas-liquid separator has entrance and exit；The entrance of gas-liquid separator is connected with the suction end of cross valve by pipeline；The outlet of gas-liquid separator is connected with the gas returning port of compressor by pipeline.
The beneficial effects of the utility model are: this utility model is by arranging the second branch road and the defrosting stream communicated therewith, high-temperature high-pressure refrigerant gas can be used to realize the defrosting to condenser, this device is not on the basis of interrupting heating operations, condenser can be realized defrosting, improve the comfortableness in heat supply room and save electric power.
Further: each fin of condenser includes body and is opened in the installing hole for housing refrigerant flow path in the middle part of body, the both sides of body offer the groove for card dress defrosting stream respectively.
Above-mentioned further scheme provides the benefit that: convenient installation defrosting stream.
Further: for guiding the guiding breach of defrosting stream when being provided with an installation in the groove of each fin.
Above-mentioned further scheme provides the benefit that: guiding breach can defrosting stream more convenient to install.
Further: each fin of condenser includes body, is opened in body side for housing the first installing hole of refrigerant flow path and being opened in body opposite side for housing the second installing hole of defrosting stream.
Above-mentioned further scheme provides the benefit that: structure is more firm.
Further: also to include the electromagnetic valve for controlling a part of high-temperature high-pressure refrigerant gas flow defrosting stream that compressor is discharged；Electromagnetic valve is arranged on the second branch road.
Above-mentioned further scheme provides the benefit that: electromagnetic valve can control the flow direction of a part of high-temperature high-pressure refrigerant gas that compressor is discharged.
Further: also to include pressure loss pipe；Pressure loss pipe is arranged on the pipeline of the pipeline communication between defrosting stream and the second port and fluid reservoir.
Above-mentioned further scheme provides the benefit that: the high-pressure refrigerant that pressure loss pipe is mainly used in flowing out defrosting stream carries out blood pressure lowering, it is ensured that the stability of whole system.
Further: flowing to of refrigerant flow path inner refrigerant is contrary with the flow direction of high-temperature high-pressure refrigerant gas in defrosting stream.
Above-mentioned further scheme provides the benefit that: can improve defrosting effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is that the first structure of fin in this utility model is intended to；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is that the second structure of fin in this utility model is intended to.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this utility model, is not intended to limit scope of the present utility model.
As it is shown in figure 1, this utility model discloses a kind of air-conditioner using hot gas cycle to defrost, it includes,
Compressor 1, compressor 1 has air vent and gas returning port, exhaust ports is provided with the first branch road and the second branch road, draw according to being hereafter easy to, first branch road is sent to vaporizer 3 for the high-temperature high-pressure refrigerant gas discharged by air vent by cross valve 2, and the second branch road is for being sent to, by the high-temperature high-pressure refrigerant gas that air vent is discharged, the stream 4.2 that defrosts.
Cross valve 2, cross valve 2 has evaporator end, suction end, exhaust end and four ports of condenser end, the exhaust end of cross valve 2 and the connection of the first branch road.
Vaporizer 3, one end of vaporizer 3 is connected with the evaporator end of cross valve 2 by pipeline.
Condenser 4, is provided with refrigerant flow path 4.1 and defrosting stream 4.2 in condenser 4, best condenser 4 is fin tube condenser.First port of refrigerant flow path 4.1 is connected with the other end of vaporizer 3 by pipeline, and the second port of refrigerant flow path 4.1 is connected with the condenser end of cross valve 2 by pipeline；Pipeline between second port and the cross valve 2 of refrigerant flow path 4.1 is provided with fluid reservoir 8；One end of defrosting stream 4.2 connects with the second branch road, and the other end of defrosting stream 4.2 is by the pipeline communication between pipeline and the second port and fluid reservoir 8.
Gas-liquid separator 6, gas-liquid separator 6 has entrance and exit；The entrance of gas-liquid separator 6 is connected with the suction end of cross valve 2 by pipeline；The outlet of gas-liquid separator 6 is connected by the gas returning port of pipeline with compressor 1.
Condenser 4 of the present utility model can use two kinds of structures, specific as follows:
As shown in Figure 2 and Figure 3, the first, each fin of condenser 4 includes body 4.3 and is opened in the installing hole 4.3.1 for housing refrigerant flow path 4.1 in the middle part of body 4.3, and the both sides of body 4.3 offer the groove 4.3.2 for card dress defrosting stream 4.2 respectively.For guiding the guiding breach 4.3.3 of defrosting stream 4.2 when the groove 4.3.2 of best each fin is provided with an installation.It should be noted that above-mentioned refrigerant flow path 4.1 uses refrigerant pipe to make, defrosting stream 4.2 uses heating pipe to make.
As shown in Figure 4, the second, each fin of condenser 4 includes body 4.3, is opened in body 4.3 side for housing the first installing hole 4.3.4 of refrigerant flow path 4.1 and being opened in body 4.3 opposite side for housing the second installing hole 4.3.5 of defrosting stream 4.2.It should be noted that above-mentioned refrigerant flow path 4.1 uses refrigerant pipe to make, defrosting stream 4.2 uses heating pipe to make.
Above-mentioned compressor the 1, second branch road, the stream 4.2 etc. that defrosts constitute a defrosting system.In order to improve above-mentioned defrosting system further, preferably defrosting system also includes the electromagnetic valve 5 for controlling a part of high-temperature high-pressure refrigerant gas flow defrosting stream 4.2 that compressor 1 is discharged；Electromagnetic valve 5 is arranged on the second branch road.Preferably defrosting system also includes pressure loss pipe 9, the high-pressure refrigerant that pressure loss pipe 9 is mainly used in flowing out defrosting stream 4.2 carries out blood pressure lowering, ensureing the stability of whole system, pressure loss pipe 9 is arranged on the pipeline of the pipeline communication between defrosting stream 4.2 and the second port and fluid reservoir 8.
Preferably defrosting system also includes the temperature sensor for detecting condenser 4 temperature, and temperature sensor electrically connects with electromagnetic valve 5, specifically, is provided with controller in electromagnetic valve 5, and controller controls electromagnetic valve 5 and is turned on and off, and temperature sensor is electrically connected with the controller.When condenser 4 temperature is too low frosting occurs time, temperature sensor controls electromagnetic valve 5 and starts, the defrosting stream 4.2 of a part of high-temperature high-pressure refrigerant gas flow condenser 4 discharged from compressor 1 so that condenser 4 temperature raises, it is achieved defrosting.After defrosting terminates, temperature sensor controls electromagnetic valve 5 and closes.In order to raising defrosting effect, flowing to of best refrigerant stream 4.1 inner refrigerant is contrary with the flow direction of high-temperature high-pressure refrigerant gas in defrosting stream 4.2.
This utility model also includes that choke valve 7, choke valve 7 are arranged on the pipeline between refrigerant flow path 4.1 and vaporizer 3.
This utility model also includes the blower fan 10 being arranged at condenser 4.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is exemplary, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in the range of this utility model, revises, replace and modification by those of ordinary skill in the art.
Claims (10)
1. the air-conditioner using hot gas cycle to defrost, it is characterised in that: include,
Compressor (1), described compressor (1) has air vent and gas returning port, and described exhaust ports is provided with the first branch road and the second branch road；
Cross valve (2), described cross valve (2) has evaporator end, suction end, exhaust end and four ports of condenser end, and the exhaust end of described cross valve (2) connects with described first branch road；
Vaporizer (3), one end of described vaporizer (3) is connected with the evaporator end of described cross valve (2) by pipeline；
Condenser (4), is provided with refrigerant flow path (4.1) and defrosting stream (4.2) in described condenser (4)；First port of described refrigerant flow path (4.1) is connected with the other end of described vaporizer (3) by pipeline, second port of described refrigerant flow path (4.1) is connected with the condenser end of described cross valve (2) by pipeline, and the pipeline between the second port and the described cross valve (2) of described refrigerant flow path (4.1) is provided with fluid reservoir (8)；One end of described defrosting stream (4.2) connects with described second branch road, and the other end of described defrosting stream (4.2) is by the pipeline communication between pipeline and described second port and described fluid reservoir (8)；
Gas-liquid separator (6), described gas-liquid separator (6) has entrance and exit；The entrance of described gas-liquid separator (6) is connected with the suction end of described cross valve (2) by pipeline；The outlet of described gas-liquid separator (6) is connected by the gas returning port of pipeline with described compressor (1).
A kind of air-conditioner using hot gas cycle to defrost, it is characterised in that: described condenser (4) is fin tube condenser.
A kind of air-conditioner using hot gas cycle to defrost, it is characterized in that: each fin of described condenser (4) includes body (4.3) and is opened in the installing hole (4.3.1) being used for housing refrigerant flow path (4.1) at body (4.3) middle part, and the both sides of described body (4.3) offer the groove (4.3.2) for card dress defrosting stream (4.2) respectively.
A kind of air-conditioner using hot gas cycle to defrost, it is characterised in that: for guiding the guiding breach (4.3.3) of described defrosting stream (4.2) when being provided with an installation in the groove (4.3.2) of each described fin.
A kind of air-conditioner using hot gas cycle to defrost, it is characterised in that: each fin of described condenser (4) includes body (4.3), is opened in body (4.3) side and is used for housing first installing hole (4.3.4) of refrigerant flow path (4.1) and is opened in body (4.3) opposite side and is used for housing second installing hole (4.3.5) of defrosting stream (4.2).
6. according to the air-conditioner using hot gas cycle to defrost a kind of described in any one of claim 1 to 5, it is characterised in that: also include the blower fan (10) being arranged on described condenser (4) place.
7. according to the air-conditioner using hot gas cycle to defrost a kind of described in any one of claim 1 to 5, it is characterized in that: also include that choke valve (7), described choke valve (7) are arranged on the pipeline between described refrigerant flow path (4.1) and described vaporizer (3).
8. according to the air-conditioner using hot gas cycle to defrost a kind of described in any one of claim 1 to 5, it is characterised in that: also include for controlling the electromagnetic valve (5) of defrosting stream (4.2) described in a part of high-temperature high-pressure refrigerant gas flow that described compressor (1) is discharged；Described electromagnetic valve (5) is arranged on the second branch road.
9. according to the air-conditioner using hot gas cycle to defrost a kind of described in any one of claim 1 to 5, it is characterised in that: also include pressure loss pipe (9)；Described pressure loss pipe (9) is arranged on the pipeline of the pipeline communication between described defrosting stream (4.2) and described second port and described fluid reservoir (8).
10. according to the air-conditioner using hot gas cycle to defrost a kind of described in any one of claim 1 to 5, it is characterised in that: the flow direction of described refrigerant flow path (4.1) inner refrigerant is contrary with the flow direction of described defrosting stream (4.2) interior high-temperature high-pressure refrigerant gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199353.3U CN205448421U (en) | 2016-03-15 | 2016-03-15 | Adopt air conditioner of steam circulation defrosting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199353.3U CN205448421U (en) | 2016-03-15 | 2016-03-15 | Adopt air conditioner of steam circulation defrosting |
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| Publication Number | Publication Date |
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| CN205448421U true CN205448421U (en) | 2016-08-10 |
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| CN201620199353.3U Active CN205448421U (en) | 2016-03-15 | 2016-03-15 | Adopt air conditioner of steam circulation defrosting |
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