CN204535170U - A kind of free refrigeration type cooling by wind with pressure maintenance valve - Google Patents
A kind of free refrigeration type cooling by wind with pressure maintenance valve Download PDFInfo
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- CN204535170U CN204535170U CN201520184648.9U CN201520184648U CN204535170U CN 204535170 U CN204535170 U CN 204535170U CN 201520184648 U CN201520184648 U CN 201520184648U CN 204535170 U CN204535170 U CN 204535170U
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Abstract
The utility model relates to refrigerating machine technical field, be specifically related to a kind of free refrigeration type cooling by wind with pressure maintenance valve, it comprises the compressor be connected in circulating refrigerant loop, air-cooled condenser, throttling arrangement, evaporimeter and is arranged on the electric T-shaped valve in water route, finned free cooler, it is characterized in that: between described compressor and air-cooled condenser, Bonding pressure maintains valve; Described pressure maintenance valve it comprise a valve body, offer exhaust passage in this valve body, the two ends of this exhaust passage form import and outlet respectively; It is in the unit starting stage, and especially when temperature is very low, dependence pressure maintenance valve sets up rapidly the height pressure reduction needed for compressor, ensures reliability of operation, and unit loading rapidly, is freezed faster, and real realization is at the reliable refrigerating operaton of annual energy; Meanwhile, owing to automatically can be guaranteed the minimum fuel feeding pressure reduction needed for compressor by this pressure maintenance valve, therefore be heighten the compression ratio that condensing pressure reduces compressor without the need to people when temperature is lower, thus effectively improve compressor operating efficiency.In addition several radiator coil tubes in air-cooled condenser arrange independently blower fan respectively, reaches the effect of economize energy, and the advantage such as make cooling by wind stable.
Description
[technical field]
The utility model belongs to refrigerating machine technical field, relates to a kind of cooling by wind, is specifically related to a kind of free refrigeration type cooling by wind with pressure maintenance valve.
[background technology]
The course of work of various air-conditioning system is exactly the process of the carrying of an energy in fact: for use side, be that energy is carried away during refrigeration, is energy carrying is come when heating.Because free refrigeration type cooling by wind substantially all requires that year round cooling runs, and environment temperature is very large with seasonal variations, when cryogenic refrigeration runs, condensation temperature due to system after helical-lobe compressor starts is too low, compressor can not set up enough height pressure reduction, compressor can be caused like this to load and compressor oil-supplying deficiency, compressor may be subject to badly damaged because of lubrication, cooling deficiency thus.Existing free refrigeration type cooling by wind refrigeration system comprises compressor, air-cooled condenser, throttling arrangement, evaporimeter, wherein air-cooled condenser is made up of several radiators and condensation fan, operation blower fan number change is relied on to change air quantity during operation thus the condensing capacity of adjustment unit, and this adjustment capability is quite limited at low ambient temperatures, particularly in the unit starting stage, even if condensation fan does not put into operation, because compressor air-discharging amount is little, condensation area seems more than needed under large temperature difference heat exchange, cause being difficult in the compressor short time set up enough height pressure reduction, unit operation reliability is caused greatly to reduce.
[utility model content]
The purpose of this utility model is defect for prior art and deficiency, there is provided a kind of structure simple, a kind of free refrigeration type cooling by wind with pressure maintenance valve reasonable in design, easy to use, it overcomes existing free refrigeration type cooling by wind and is difficult to set up enough height pressure reduction within the unit starting multistage compressor short time, the defect causing free refrigeration type cooling by wind operational reliability to reduce, provides a kind of free refrigeration type cooling by wind with pressure maintenance valve.
A kind of free refrigeration type cooling by wind with pressure maintenance valve described in the utility model, it comprises the compressor be connected in circulating refrigerant loop, air-cooled condenser, throttling arrangement, evaporimeter and is arranged on the electric T-shaped valve in water route, finned free cooler, it is characterized in that: between described compressor and air-cooled condenser, Bonding pressure maintains valve; Described pressure maintenance valve it comprise a valve body, offer exhaust passage in this valve body, the two ends of this exhaust passage form import and outlet respectively; Being provided with in described valve body can the piston of shutoff exhaust passage, and this piston, by spring supporting, communicates with described exhaust passage and is outwards connected balance pipe.
Further, the exhaust outlet that described pressure maintenance valve is installed on described compressor is connected by the low-pressure side of balance pipe with described compressor.
Further, described air-cooled condenser comprises some groups of radiator coil tubes and blower fan.
Further, liquid reservoir and device for drying and filtering is connected with between described air-cooled condenser outlet and throttling arrangement import.
After adopting said structure, the utility model beneficial effect is: a kind of free refrigeration type cooling by wind with pressure maintenance valve described in the utility model, it is in the unit starting stage, it is special in temperature is very low, unit then relies on pressure maintenance valve to set up rapidly height pressure reduction needed for compressor completely, and its advantage ensures reliability of operation first; Second unit loading rapidly, freezes faster, thus real realization is at the reliable refrigerating operaton of annual energy; Three therefore are heighten the compression ratio that condensing pressure reduces compressor without the need to people when temperature is lower owing to automatically can be guaranteed the minimum fuel feeding pressure reduction needed for compressor by this pressure maintenance valve, thus effectively improve compressor operating efficiency.In addition several radiator coil tubes in air-cooled condenser arrange independently blower fan respectively, when the normal refrigerating operaton of unit, open by controlling blower fan and regulate rotation speed of fan, make air-cooled condenser can regulate condenser heat exchange amount with variation of ambient temperature, reach the effect of economize energy, and make cooling by wind stable.
[accompanying drawing explanation]
Accompanying drawing described herein is used to provide to further understanding of the present utility model, forms a application's part, but does not form improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the refrigeration system schematic flow sheet of the free refrigeration type cooling by wind of the utility model band pressure maintenance valve;
Fig. 2 is the structural representation of the utility model pressure maintenance valve.
Description of reference numerals:
1-compressor, 2-air-cooled condenser, 3-throttling arrangement, 4-evaporimeter, 5-liquid reservoir, 6-device for drying and filtering, 7-electric T-shaped valve, the finned free cooler of 8-, 9-blower fan, 10-pressure is tieed up, 11-balance pipe, 12-coil pipe, 13-valve body, 14-import, 15-exports, 16-piston, 17-spring.
[detailed description of the invention]
The utility model is described in detail, illustrative examples wherein and illustrate and be only used for explaining the utility model below in conjunction with accompanying drawing and specific embodiment, but not as to restriction of the present utility model.
As shown in Figure 1 and Figure 2, a kind of free refrigeration type cooling by wind with pressure maintenance valve described in this detailed description of the invention, it comprises the compressor 1 be connected in circulating refrigerant loop, air-cooled condenser 2, throttling arrangement 3, evaporimeter 4 and is arranged on the electric T-shaped valve 7 in water route, finned free cooler 8, it is characterized in that: between described compressor (1) and air-cooled condenser 2, Bonding pressure maintains valve 10; Described pressure maintenance valve 10 it comprise a valve body 13, offer exhaust passage in this valve body 13, the two ends of this exhaust passage form import 14 and outlet 15 respectively; Being provided with in described valve body 13 can the piston 16 of shutoff exhaust passage, and this piston 16 is supported by spring 17, and communicating with described exhaust passage is outwards connected balance pipe 11.
Preferred as one of the present utility model, the exhaust outlet that described pressure maintenance valve 10 is installed on described compressor 1 is connected by the low-pressure side of balance pipe 11 with described compressor 1.
Preferred as one of the present utility model, described air-cooled condenser 2 comprises some groups of radiator coil tubes 12 and blower fan 9.
Preferred as one of the present utility model, described air-cooled condenser 2 exports and be connected with liquid reservoir 5 and device for drying and filtering 6 between throttling arrangement 3 import.
As shown in Figure 1, the utility model comprises the compressor 1 be connected in circulating refrigerant loop, air-cooled condenser 2, throttling arrangement 3, evaporimeter 4, liquid reservoir 5, device for drying and filtering 6 and the finned free cooler 8, the electric T-shaped valve 7 that are connected to water circuit system.The free refrigeration type cooling by wind of said structure and prior art is similar, therefore no longer launches to describe.The utility model is compared with traditional free refrigeration type cooling by wind refrigeration system, the utility model adds pressure maintenance valve 10, and pressure maintenance valve 10 is installed on compressor air-discharging and exports upper and be directed in pressure maintenance valve by compressor low-pressure lateral pressure signal by balance pipe 11 at pressure maintenance valve top.
As shown in Figure 2, exhaust passage is offered in the valve body 13 of pressure maintenance valve 10, the two ends of exhaust passage are respectively import 14 and outlet 15, arrange in valve body can shutoff exhaust passage piston 16 and supported by spring 17, communicating with exhaust passage is outwards connected balance pipe 11.Before compressor 1 starts, high-low pressure balance in machine set system, exhaust passage is closed by the piston 16 of pressure maintenance valve 10 under the effect of spring 17 pressure, after compressor start, because exhaust passage is closed, pressure at expulsion rises very soon, when system height pressure reduction reaches the valve opening pressure reduction of setting, pressure maintenance valve piston 16 moves, valve open, compressor air-discharging enters condensation in condenser smoothly.After compressor start, rely on pressure maintenance valve that compressor can be made at short notice to set up rapidly enough height pressure reduction, and then it being smooth and easy to ensure that compressor displacement regulating loads, ensureing that compressor does not cause harmful effect because losing oil.
Operation principle of the present utility model is as follows:
Compressor 1 sucks the low-temperature low-pressure refrigerant steam of flash-pot 4, to the superheated vapor becoming HTHP after the both vapor compression work done of low-temp low-pressure.Then, the refrigerant vapour of high pressure-temperature enters air-cooled condenser 2, and by the forced ventilation of blower fan 8, the surrounding air lower with temperature carries out heat exchange, the heat discharged is passed to air, make gaseous refrigerant be condensed into highly pressurised liquid in condensation process.Highly pressurised liquid is through throttling arrangement 3, and become low-temp low-pressure after reducing pressure by regulating flow and the higher gas-fluid two-phase mixture of content liquid, these gas-fluid two-phase mixtures enter evaporimeter 4.In evaporimeter 4, the cold-producing medium of low-temp low-pressure is by the chilled water generation exchange heat relatively high with temperature, refrigerant liquid, by generating gasification, becomes low-temperature low-pressure refrigerant steam after the heat of absorption refrigerating water, thus the temperature reducing chilled water reaches refrigeration object.Refrigerant vapour after gasification will be inhaled into compressor, circulate and so forth.
The utility model in use, when outside air temperature is lower than chilled water temperature certain value, a part of water imports in fin cooler 8 by electric T-shaped valve 7, make chilled water can directly and outdoor air heat exchange, absorb the cold in air, the cold of this part does not need compressor 1 to consume electric energy to produce, thus reduces energy consumption.Time as enough low in air themperature, can not drive compressor 1, only absorb the cold in air by fin cooler, also can meet the needs of room cooling, system energy consumption declines greatly.
A kind of free refrigeration type cooling by wind with pressure maintenance valve described in the utility model, it is in the unit starting stage, it is special in temperature is very low, unit then relies on pressure maintenance valve to set up rapidly height pressure reduction needed for compressor completely, its advantage ensures reliability of operation first, second unit loads rapidly, freezes faster, thus real realization can reliable refrigerating operaton in the whole year.In addition several radiator coil tubes in air-cooled condenser arrange independently blower fan respectively, when the normal refrigerating operaton of unit, open by controlling blower fan and regulate rotation speed of fan, make air-cooled condenser can regulate condenser heat exchange amount with variation of ambient temperature, reach the effect of economize energy, and make cooling by wind stable.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (4)
1. the free refrigeration type cooling by wind with pressure maintenance valve, electric T-shaped valve (7), finned free cooler (8) that it comprises the compressor (1) be connected in circulating refrigerant loop, air-cooled condenser (2), throttling arrangement (3), evaporimeter (4) and is arranged in water route, is characterized in that: be connected with pressure maintenance valve (10) between described compressor (1) and air-cooled condenser (2); Described pressure maintenance valve (10) it comprise a valve body (13), this valve body offers exhaust passage in (13), and the two ends of this exhaust passage form import (14) and outlet (15) respectively; Being provided with in described valve body (13) can the piston (16) of shutoff exhaust passage, and this piston (16) is supported by spring (17), communicates outwards be connected balance pipe (11) with described exhaust passage.
2. a kind of free refrigeration type cooling by wind with pressure maintenance valve according to claim 1, is characterized in that: the exhaust outlet that described pressure maintenance valve (10) is installed on described compressor (1) is connected by the low-pressure side of balance pipe (11) with described compressor (1).
3. a kind of free refrigeration type cooling by wind with pressure maintenance valve according to claim 1, is characterized in that: described air-cooled condenser (2) comprises some groups of radiator coil tubes (12) and blower fan (9).
4. a kind of free refrigeration type cooling by wind with pressure maintenance valve according to claim 1, is characterized in that: between air-cooled condenser (2) outlet and throttling arrangement (3) import, be connected with liquid reservoir (5) and device for drying and filtering (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184648.9U CN204535170U (en) | 2015-03-27 | 2015-03-27 | A kind of free refrigeration type cooling by wind with pressure maintenance valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520184648.9U CN204535170U (en) | 2015-03-27 | 2015-03-27 | A kind of free refrigeration type cooling by wind with pressure maintenance valve |
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| CN204535170U true CN204535170U (en) | 2015-08-05 |
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| CN201520184648.9U Active CN204535170U (en) | 2015-03-27 | 2015-03-27 | A kind of free refrigeration type cooling by wind with pressure maintenance valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915952A (en) * | 2019-02-25 | 2019-06-21 | 珠海格力电器股份有限公司 | Central air conditioning unit with 0-100% output load adjusting capacity |
-
2015
- 2015-03-27 CN CN201520184648.9U patent/CN204535170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915952A (en) * | 2019-02-25 | 2019-06-21 | 珠海格力电器股份有限公司 | Central air conditioning unit with 0-100% output load adjusting capacity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee after: Zhejiang state auspicious Limited by Share Ltd Address before: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee before: Zhejiang Guo Xiang air-conditioning limited company |