CN204574584U - A kind of novel energy-saving cooling by wind with pressure maintenance device - Google Patents
A kind of novel energy-saving cooling by wind with pressure maintenance device Download PDFInfo
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- CN204574584U CN204574584U CN201520152183.9U CN201520152183U CN204574584U CN 204574584 U CN204574584 U CN 204574584U CN 201520152183 U CN201520152183 U CN 201520152183U CN 204574584 U CN204574584 U CN 204574584U
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Abstract
The utility model discloses a kind of novel energy-saving cooling by wind with pressure maintenance device, belong to refrigeration technology field, the cooling by wind of existing year round cooling is difficult to set up enough height pressure reduction within the unit starting multistage compressor short time, causes the reliability of unit operation to reduce; Cooling by wind of the present utility model comprises and being connected in circulating refrigerant loop and compressor, air-cooled condenser, throttling arrangement, the evaporimeter arranged according to the flow direction of circulating refrigerant, and between compressor and air-cooled condenser, Bonding pressure maintains valve.In the unit starting stage, when particularly winter temperature is very low, unit then relies on pressure maintenance valve to set up rapidly height pressure reduction needed for compressor completely, unit loads rapidly first, freeze faster, second automatically can meet the minimum fuel feeding pressure reduction needed for compressor, guarantee the Effec-tive Function realizing unit under the prerequisite of the annual reliability service of refrigeration mode.
Description
Technical field
The utility model belongs to refrigerating machine technical field, relates to a kind of cooling by wind, is more specifically a kind of novel energy-saving cooling by wind maintaining valve gear with pressure.
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 in when heating.Because novel energy-saving 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 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
For the present situation of prior art, the technical problems to be solved in the utility model is the defect that the cooling by wind height pressure reduction that compressor exists cryogenic refrigeration startup stage is difficult to set up, a kind of novel energy-saving cooling by wind with pressure maintenance device is provided, energy waste is avoided to realize remarkable power saving advantages during to freeze in more low ambient temperature, thus improve cooling by wind reliability of operation and energy saving, expand unit refrigeration low-temperature range of operation.
For achieving the above object, the novel energy-saving cooling by wind of band pressure maintenance device of the present utility model, comprise and being connected in circulating refrigerant loop and compressor, air-cooled condenser, throttling arrangement, the evaporimeter arranged according to the flow direction of circulating refrigerant, described air-cooled condenser is connected to the high-pressure side of described compressor, described evaporimeter is connected to the low-pressure side of described compressor, it is characterized in that: between described compressor and air-cooled condenser, Bonding pressure maintains valve.
As optimization technique means: described pressure maintenance valve is connected by the low-pressure side of balance pipe with described compressor.Concrete, described pressure maintenance valve comprises a valve body, exhaust passage is offered in described valve body, the two ends of described exhaust passage form valve import and valve outlet port respectively, arranging in described valve body can the piston of shutoff exhaust passage, described piston is supported with the spring impelling piston shutoff exhaust passage, described balance pipe communicates with described exhaust passage.
As optimization technique means: be connected with A check valve between described pressure maintenance valve and compressor, described A check valve only allows circulating refrigerant to be flowed to pressure maintenance valve by described compressor.Further, a B check valve in parallel on described compressor, A check valve, pressure maintenance valve, described B check valve only allows circulating refrigerant to be flowed to air-cooled condenser by described evaporimeter.
As optimization technique means: described air-cooled condenser comprises some groups of radiator coil tubes and blower fan.
As optimization technique means: be connected in series with reservoir and device for drying and filtering between described air-cooled condenser outlet and throttling arrangement import, described reservoir is positioned at the front side of device for drying and filtering.
As optimization technique means: described throttling arrangement is parallel with solution pump, described solution pump impels circulating refrigerant to be flowed to evaporimeter by described air-cooled condenser.Further, described throttling arrangement comprises the C check valve being positioned at its inlet side, and described C check valve only allows circulating refrigerant to be flowed to throttling arrangement by described air-cooled condenser.Described solution pump comprises the D check valve being positioned at its outlet side, and described D check valve only allows circulating refrigerant to be flowed to evaporimeter by described solution pump.
The beneficial effects of the utility model are: in the unit starting stage, it is special in temperature is very low, unit then relies on pressure maintenance valve (pressure maintenance device) to set up rapidly height pressure reduction needed for compressor completely, ensure reliability of operation first, second unit loads rapidly, freeze faster, thus real realization can reliable refrigerating operaton in the whole year.Several radiator coil tubes has 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
Fig. 1 is the refrigeration system schematic flow sheet of cooling by wind of the present utility model;
Fig. 2 is the structural representation of the utility model pressure maintenance valve;
Number in the figure illustrates:
1-compressor, 2-A check valve, 3-B check valve, 4-air-cooled condenser, 5-blower fan, 6-reservoir, 7-device for drying and filtering, 8-solution pump, 9-C check valve, 10-throttling arrangement, 11-D check valve, 12-evaporimeter, 13-pressure maintenance valve, 14-balance pipe;
131-valve body, the import of 132-valve, 133-valve outlet port, 134-piston, 135-spring.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described further.
As shown in Figure 1, the novel energy-saving cooling by wind of the utility model band pressure maintenance device, comprise and being connected in circulating refrigerant loop and compressor 1, air-cooled condenser 4, throttling arrangement 10, the evaporimeter 12 arranged according to the flow direction of circulating refrigerant, air-cooled condenser 4 is connected to the high-pressure side of compressor 1, evaporimeter 12 is connected to the low-pressure side of compressor 1, and between compressor 1 and air-cooled condenser 4, Bonding pressure maintains valve 13.
Further, pressure maintenance valve 13 is connected by the low-pressure side of balance pipe 14 with compressor 1, compressor low-pressure lateral pressure signal can be directed in pressure maintenance valve by balance pipe 14.Concrete, see Fig. 2, pressure maintenance valve 13 comprises a valve body 131, exhaust passage is offered in valve body 131, the two ends of exhaust passage form valve import 132 and valve outlet port 133 respectively, arranging in valve body 131 can the piston 134 of shutoff exhaust passage, and piston is supported with the spring 135 impelling piston shutoff exhaust passage, balance pipe 14 communicates with exhaust passage.Before compressor 1 starts, high-low pressure balance in machine set system, exhaust passage is closed by the piston 134 of pressure maintenance valve 13 under the effect of spring 135 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 134 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.
Being connected with A check valve 2, A check valve 2 between pressure maintenance valve 13 and compressor 1 only allows circulating refrigerant to be flowed to pressure maintenance valve 13 by compressor 1.On compressor 1, A check valve 2, pressure maintenance valve 13, B check valve 3, a B check valve 3 in parallel only allows circulating refrigerant to be flowed to air-cooled condenser 4 by evaporimeter 12.Air-cooled condenser 4 comprises some groups of radiator coil tubes and blower fan 5.
Air-cooled condenser 4 exports and be connected in series with reservoir 6 and device for drying and filtering 7 between throttling arrangement 10 import, and reservoir 6 is positioned at the front side of device for drying and filtering 7.
Throttling arrangement 10 is parallel with solution pump 8, described solution pump 8 impels circulating refrigerant to be flowed to evaporimeter 12 by described air-cooled condenser 4.Throttling arrangement 10 comprises C check valve 9, the C check valve 9 being positioned at its inlet side and only allows circulating refrigerant to be flowed to throttling arrangement 10 by air-cooled condenser 4.Solution pump 8 comprises D check valve 11, the D check valve 11 being positioned at its outlet side and only allows circulating refrigerant to be flowed to evaporimeter 12 by solution pump 8.
The operation principle of the utility model cooling by wind is: compressor 1 sucks the low-temperature low-pressure refrigerant steam of flash-pot 12, 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 4, and by the forced ventilation of blower fan 5, 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 10, 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 12.In evaporimeter 12, 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 1, circulate and so forth.
If when air themperature is enough low, compressor 1 can not be driven, by solution pump 8 startup optimization, cold-producing medium is driven to circulate between the heat exchanger that temperature is different, the cold absorbed in air is transferred in chilled water, also also can realize refrigeration, and system energy consumption will decline greatly.
Claims (9)
1. the novel energy-saving cooling by wind with pressure maintenance device, comprise and being connected in circulating refrigerant loop and compressor (1), air-cooled condenser (4), throttling arrangement (10), the evaporimeter (12) arranged according to the flow direction of circulating refrigerant, described air-cooled condenser (4) is connected to the high-pressure side of described compressor (1), described evaporimeter (12) is connected to the low-pressure side of described compressor (1), it is characterized in that: between described compressor (1) and air-cooled condenser (4), Bonding pressure maintains valve (13); Be connected with A check valve (2) between described pressure maintenance valve (13) and compressor (1), described A check valve (2) only allows circulating refrigerant to be flowed to pressure maintenance valve (13) by described compressor (1).
2. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 1, is characterized in that: described pressure maintenance valve (13) is connected by the low-pressure side of balance pipe (14) with described compressor (1).
3. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 2, it is characterized in that: described pressure maintenance valve (13) comprises a valve body (131), described valve body offers exhaust passage in (131), the two ends of described exhaust passage form valve import (132) and valve outlet port (133) respectively, arranging in described valve body (131) can the piston (134) of shutoff exhaust passage, described piston is supported with the spring (135) impelling piston shutoff exhaust passage, described balance pipe (14) communicates with described exhaust passage.
4. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 1, it is characterized in that: the upper B check valve (3) in parallel of described compressor (1), A check valve (2), pressure maintenance valve (13), described B check valve (3) only allows circulating refrigerant to be flowed to air-cooled condenser (4) by described evaporimeter (12).
5. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 1, is characterized in that: described air-cooled condenser (4) comprises some groups of radiator coil tubes and blower fan (5).
6. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 1, it is characterized in that: be connected in series with reservoir (6) and device for drying and filtering (7) between described air-cooled condenser (4) outlet and throttling arrangement (10) import, described reservoir (6) is positioned at the front side of device for drying and filtering (7).
7. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 1, it is characterized in that: described throttling arrangement (10) is parallel with solution pump (8), described solution pump (8) impels circulating refrigerant to be flowed to evaporimeter (12) by described air-cooled condenser (4).
8. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 7, it is characterized in that: described throttling arrangement (10) comprises the C check valve (9) being positioned at its inlet side, described C check valve (9) only allows circulating refrigerant to be flowed to throttling arrangement (10) by described air-cooled condenser (4).
9. the novel energy-saving cooling by wind of band pressure maintenance device according to claim 7, it is characterized in that: described solution pump (8) comprises the D check valve (11) being positioned at its outlet side, described D check valve (11) only allows circulating refrigerant to be flowed to evaporimeter (12) by described solution pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520152183.9U CN204574584U (en) | 2015-03-17 | 2015-03-17 | A kind of novel energy-saving cooling by wind with pressure maintenance device |
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| CN201520152183.9U CN204574584U (en) | 2015-03-17 | 2015-03-17 | A kind of novel energy-saving cooling by wind with pressure maintenance device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222230A (en) * | 2015-10-16 | 2016-01-06 | 珠海格力电器股份有限公司 | Inter-row air conditioner, pressure regulating method of inter-row air conditioner and inter-row air conditioning system |
| CN105841375A (en) * | 2016-05-31 | 2016-08-10 | 昆山台佳机电有限公司 | Energy-saving type full-year refrigerating unit |
| CN112923635A (en) * | 2019-12-05 | 2021-06-08 | 博西华电器（江苏）有限公司 | Refrigeration device and method for a refrigeration device |
-
2015
- 2015-03-17 CN CN201520152183.9U patent/CN204574584U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222230A (en) * | 2015-10-16 | 2016-01-06 | 珠海格力电器股份有限公司 | Inter-row air conditioner, pressure regulating method of inter-row air conditioner and inter-row air conditioning system |
| CN105841375A (en) * | 2016-05-31 | 2016-08-10 | 昆山台佳机电有限公司 | Energy-saving type full-year refrigerating unit |
| CN112923635A (en) * | 2019-12-05 | 2021-06-08 | 博西华电器（江苏）有限公司 | Refrigeration device and method for a refrigeration device |
| CN112923635B (en) * | 2019-12-05 | 2024-03-05 | 博西华电器（江苏）有限公司 | Refrigeration appliance and method for a refrigeration appliance |
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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 Guo Xiang air-conditioning limited company Address before: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee before: Zhejiang Guo Xiang Air Conditioner Equipment Co., Ltd |
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| 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 |