CN206930033U - Electric expansion valve hot gas defrosting system Condensing units - Google Patents
Electric expansion valve hot gas defrosting system Condensing units Download PDFInfo
- Publication number
- CN206930033U CN206930033U CN201720548392.4U CN201720548392U CN206930033U CN 206930033 U CN206930033 U CN 206930033U CN 201720548392 U CN201720548392 U CN 201720548392U CN 206930033 U CN206930033 U CN 206930033U
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- electric expansion
- expansion valve
- connects
- heating pipe
- valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses electric expansion valve hot gas defrosting system Condensing units.It includes compressor, feed pipe, muffler, heating pipe and evaporator, oil eliminator is provided with the compressor, oil eliminator connects with condenser and heating pipe, the condenser connects with reservoir, reservoir connects with plate type heat exchanger, the one outlet of plate type heat exchanger connects with feed pipe, another outlet of plate type heat exchanger connects with compressor, electric expansion valve is provided with feed pipe, bypass solenoid valve in parallel on electric expansion valve, electric expansion valve connects with evaporator, heating pipe magnetic valve is provided with heating pipe, heating pipe connects with evaporator, muffler and heating pipe are connected together, return-air magnetic valve is provided with muffler, muffler connects with gas-liquid separator, the gas outlet of gas-liquid separator connects with compressor.The utility model energy-conserving and environment-protective, the aperture of electric expansion valve before evaporator is adjusted flexibly, realizes system matches.
Description
Technical field
Electric expansion valve hot gas defrosting system Condensing units are the utility model is related to, belong to Refrigeration Engineering field.
Background technology
Present conventional refrigerant system is primarily present following several aspect deficiencies：
Throttling arrangement uses heating power expansion valve, and the refrigerant superheat degree that heating power expansion valve is exported by induction evaporation mode device is adjusted
Aperture size is saved, but has that delay, valve body aperture regulation scope are small and degree of regulation is low to response time of the degree of superheat, for end
The freezer that end load changes greatly, heating power expansion valve can not meet use demand.
Evaporator is defrosted using electricity, is defrosted unnet, and defrosting time length directly causes temperature of ice house to fluctuate, and influences freezer and exists
Refrigeration during defrosting.
Utility model content
The purpose of this utility model is to provide electric expansion valve hot gas defrosting system Condensing units, energy-conserving and environment-protective,
In the case of load variations, by gathering the operational factor in each stage in refrigeration system, electronics is swollen before evaporator is adjusted flexibly
The aperture of swollen valve, realizes system matches.
The utility model solves above-mentioned technical problem by following technological means：
Electric expansion valve hot gas defrosting system Condensing units of the present utility model, it includes compressor, feed pipe, returned
Tracheae, heating pipe and evaporator, oil eliminator are provided with the compressor, oil eliminator connects with condenser and heating pipe
Logical, the condenser connects with reservoir, and reservoir connects with plate type heat exchanger, the one outlet and feed pipe of plate type heat exchanger
Connection, another outlet of plate type heat exchanger are connected with compressor, and electric expansion valve, electric expansion valve are provided with feed pipe
Upper in parallel bypass solenoid valve, electric expansion valve connect with evaporator, are provided with heating pipe magnetic valve on heating pipe, heating pipe and
Evaporator is connected, and muffler and heating pipe are connected together, and return-air magnetic valve, muffler and gas-liquid separation are provided with muffler
Device connects, and the gas outlet of gas-liquid separator connects with compressor.
Temp probe and pressure sensor are provided between compressor and oil eliminator, condensating wind is provided with condenser
Machine, condenser are connected with gas-liquid separator, and electric expansion valve is provided between condenser and gas-liquid separator.
Reservoir is provided with a branch road with plate type heat exchanger connectivity part, and jet electric expansion valve is provided with branch road.
Cutoff is provided with the feed pipe, filter is in series with electric expansion valve, is gone here and there on bypass solenoid valve
It is associated with check valve.
Heating pipe stop valve, pressure sensor, temp probe are in series with the heating pipe.
Return-air stop valve is provided with the muffler.
The connectivity part of the muffler and gas-liquid separator is provided with pressure sensor.
The utility model makes system operation more stable reliable using the throttle style of electric expansion valve.Use hot gas defrost
Defrost pattern, make evaporator defrost more thorough, more efficient.
It is of the present utility model mainly to solve deficiency present in former conventional refrigeration device, mainly there is following advantage：
In the case of load variations, by gathering the operational factor in each stage in refrigeration system, evaporator is adjusted flexibly
The aperture of preceding electric expansion valve, realizes system matches.
Compared with routine uses electric heating tube to evaporator defrost outside evaporator, hot gas defrost of the present utility model
It is to make the high-temperature gas of compressor discharge be directly entered inside evaporator copper pipe outwards heat release to carry out defrost, defrost effect to evaporator
Fruit is more notable；What hot gas defrost utilized is the heat for the high-temperature gas that compressor excludes, more energy efficient compared to electrochemical frost；Using hot gas
Defrost, the fluctuation of evaporator internal temperature is small, can ensure temperature, the freshness of food to greatest extent.
In the case of load variations, by gathering the operational factor in each stage in refrigeration system, evaporator is adjusted flexibly
The aperture of preceding electric expansion valve, realizes system matches.
Compared with routine uses electric heating tube to evaporator defrost outside evaporator, hot gas defrost of the invention is to make
The high-temperature gas of compressor discharge is directly entered inside evaporator copper pipe outwards heat release and gives evaporator progress defrost, this defrost side
Method defrost effect is more thorough, and avoid electric heating tube can vitiable situation.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is schematic diagram when the utility model freezes；
Schematic diagram when Fig. 3 is the utility model defrost.
Embodiment
The utility model is described in detail below with reference to accompanying drawing, as shown in Figure 1, 2, 3：The electronics of the present embodiment is swollen
Swollen valve hot gas defrosting system Condensing units, it includes compressor 1, feed pipe 25, muffler 26, heating pipe 27 and evaporator
16, oil eliminator 2 is provided with the compressor 1, and oil eliminator 2 connects with condenser 3 and heating pipe 27, the condenser
3 connect with reservoir 5, and reservoir 5 connects with plate type heat exchanger 6, and the one outlet of plate type heat exchanger 6 connects with feed pipe 25,
Another outlet of plate type heat exchanger 6 is connected with compressor 1, and electric expansion valve 15, electronic expansion are provided with feed pipe 25
In parallel bypass solenoid valve 17, electric expansion valve 15 are connected with evaporator 16 on valve 15, and it is electric that heating pipe is provided with heating pipe 27
Magnet valve 20, heating pipe 27 connect with evaporator 16, and muffler 26 and heating pipe 27 are connected together, and are provided with back on muffler 26
Pneumoelectric magnet valve 22, muffler 26 connect with gas-liquid separator 8, and the gas outlet of gas-liquid separator 8 connects with compressor 1.
Temp probe 11 and pressure sensor 12 are provided between compressor 1 and oil eliminator 2, is provided with condenser 3
Condensation fan 4, condenser 3 are connected with gas-liquid separator 8, and electric expansion valve 9 is provided between condenser 3 and gas-liquid separator 8.
Reservoir 5 is provided with a branch road with the connectivity part of plate type heat exchanger 6, and jet electric expansion valve 7 is provided with branch road.
Cutoff 13 is provided with the feed pipe 25, filter 14, bypass electricity are in series with electric expansion valve 15
Check valve 18 is in series with magnet valve 17.
Heating pipe stop valve 19, pressure sensor 23, temp probe 24 are in series with the heating pipe 27.
Return-air stop valve 21 is provided with the muffler 26.
The connectivity part of the muffler 26 and gas-liquid separator 8 is provided with pressure sensor 10.
As shown in Figures 2 and 3, generator set controller is given according to each temp probe collected, the data of pressure sensor
The magnetic valve of each pipeline provides switching signal, by the different switch combination of several magnetic valves, makes refrigerant move towards to meet refrigeration
Circulation, defrost circulate the demand of two kinds of different operational modes.
Kind of refrigeration cycle：By the compression of compressor 1, the refrigerant of low-temp low-pressure becomes the refrigerant gas of HTHP
Body；In the presence of condenser 3, the refrigerant gas of HTHP is condensed into the refrigerant liquid of high pressure；Before evaporator
The throttling action of electric expansion valve 15, refrigerant become the gas-liquid mixture of low-temp low-pressure, then evaporate and inhale in evaporator 16
Compressor is returned to after heat, while the by-passing part refrigerant liquid of jet electric expansion valve 7 evaporates backward compression through plate type heat exchanger 6
Machine middle pressure chamber body jet.Return-air magnetic valve 22 is opened, and bypass solenoid valve 17, heating pipe magnetic valve 20 are closed.
Defrost circulates：Kind of refrigeration cycle normal operation, it is assumed that 1# evaporators need operation defrost to circulate, corresponding to 1# evaporators
Return-air magnetic valve 22, electric expansion valve 15 are closed, and bypass solenoid valve 17, heating pipe magnetic valve 20 are opened, and are come out from compressor
The refrigerant gas part bypass of HTHP, to 1# evaporators 16, is given evaporator defrost, condensed out by heating pipe
Refrigerant liquid flows to 2# evaporators by feed pipe and participates in refrigeration.
Wherein, default meter in each temp probe, pressure sensor and the control system installed in refrigeration system is passed through
Formula is calculated, adjusts the aperture of electric expansion valve 15 before evaporator, realizes being flexibly matched with for electric expansion valve and different load demand.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (7)
1. electric expansion valve hot gas defrosting system Condensing units, it is characterised in that：Including compressor (1), feed pipe (25),
Muffler (26), heating pipe (27) and evaporator (16), oil eliminator (2), oil eliminator are provided with the compressor (1)
(2) connected with condenser (3) and heating pipe (27), the condenser (3) connects with reservoir (5), reservoir (5) with it is board-like
Heat exchanger (6) connects, and the one outlet of plate type heat exchanger (6) connects with feed pipe (25), plate type heat exchanger (6) another
Outlet connect with compressor (1), is provided with electric expansion valve (15) on feed pipe (25), on electric expansion valve (15) parallel connection by
Three-way electromagnetic valve (17), electric expansion valve (15) connect with evaporator (16), and heating pipe is provided with heating pipe magnetic valve on (27)
(20), heating pipe (27) connects with evaporator (16), and muffler (26) and heating pipe (27) are connected together, on muffler (26)
Return-air magnetic valve (22) is provided with, muffler (26) connects with gas-liquid separator (8), the gas outlet of gas-liquid separator (8) and pressure
Contracting machine (1) connects.
2. electric expansion valve hot gas defrosting system Condensing units according to claim 1, it is characterised in that：Compressor
(1) temp probe (11) and pressure sensor (12) are provided between oil eliminator (2), condenser is provided with condensation on (3)
Blower fan (4), condenser (3) connect with gas-liquid separator (8), and it is swollen to be provided with electronics between condenser (3) and gas-liquid separator (8)
Swollen valve (9).
3. electric expansion valve hot gas defrosting system Condensing units according to claim 2, it is characterised in that：Reservoir
(5) plate type heat exchanger (6) connectivity part is provided with a branch road, jet electric expansion valve 7 is provided with branch road.
4. electric expansion valve hot gas defrosting system Condensing units according to claim 3, it is characterised in that：The confession
Cutoff (13) is provided with liquid pipe (25), filter (14), bypass solenoid valve are in series with electric expansion valve (15)
(17) check valve (18) is in series with.
5. electric expansion valve hot gas defrosting system Condensing units according to claim 4, it is characterised in that：The heat
Heating pipe stop valve (19), pressure sensor (23), temp probe (24) are in series with tracheae (27).
6. electric expansion valve hot gas defrosting system Condensing units according to claim 5, it is characterised in that：Described time
Return-air stop valve (21) is provided with tracheae (26).
7. electric expansion valve hot gas defrosting system Condensing units according to claim 6, it is characterised in that：Described time
The connectivity part of tracheae (26) and gas-liquid separator (8) is provided with pressure sensor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548392.4U CN206930033U (en) | 2017-05-17 | 2017-05-17 | Electric expansion valve hot gas defrosting system Condensing units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548392.4U CN206930033U (en) | 2017-05-17 | 2017-05-17 | Electric expansion valve hot gas defrosting system Condensing units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930033U true CN206930033U (en) | 2018-01-26 |
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ID=61351627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720548392.4U Active CN206930033U (en) | 2017-05-17 | 2017-05-17 | Electric expansion valve hot gas defrosting system Condensing units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206930033U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444183A (en) * | 2018-05-30 | 2018-08-24 | 无锡海核装备科技有限公司 | A kind of accurate temperature controlling cold storage plant peculiar to vessel |
| CN108954999A (en) * | 2017-05-17 | 2018-12-07 | 上海通用富士冷机有限公司 | Electric expansion valve hot gas defrosting system Condensing units |
| CN113833762A (en) * | 2021-09-08 | 2021-12-24 | 青岛海尔空调电子有限公司 | Air supply system and refrigerating system for suspension bearing |
| CN113833762B (en) * | 2021-09-08 | 2024-04-19 | 青岛海尔空调电子有限公司 | Air supply system and refrigerating system for suspension bearing |
-
2017
- 2017-05-17 CN CN201720548392.4U patent/CN206930033U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954999A (en) * | 2017-05-17 | 2018-12-07 | 上海通用富士冷机有限公司 | Electric expansion valve hot gas defrosting system Condensing units |
| CN108444183A (en) * | 2018-05-30 | 2018-08-24 | 无锡海核装备科技有限公司 | A kind of accurate temperature controlling cold storage plant peculiar to vessel |
| CN113833762A (en) * | 2021-09-08 | 2021-12-24 | 青岛海尔空调电子有限公司 | Air supply system and refrigerating system for suspension bearing |
| CN113833762B (en) * | 2021-09-08 | 2024-04-19 | 青岛海尔空调电子有限公司 | Air supply system and refrigerating system for suspension bearing |
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