CN202993635U - Heat pump unit with gravity self-circulation oil cooler - Google Patents
Heat pump unit with gravity self-circulation oil cooler Download PDFInfo
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- CN202993635U CN202993635U CN 201220688219 CN201220688219U CN202993635U CN 202993635 U CN202993635 U CN 202993635U CN 201220688219 CN201220688219 CN 201220688219 CN 201220688219 U CN201220688219 U CN 201220688219U CN 202993635 U CN202993635 U CN 202993635U
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- oil cooler
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Abstract
The utility model belongs to refrigerating machinery technologies, discloses a heat pump unit with a gravity self-circulation oil cooler, and aims to solve the problem that the existing water (ground) source heat pump unit leads to decrease of the energy efficiency ratio of the unit when performing liquid injection cooling on the motor room and the compression room of the compressor during heating or heat recovery operations. The heat pump unit includes an evaporator, a compressor, an oil separator, a condenser, a throttling device and the like that are all connected to a refrigerant circulation circuit, and further, is characterized in that the gravity self-circulation liquid supply oil cooler is connected between the compressor and the condenser, and the oil cooler, an electromagnetic valve and a temperature sensor together form an oil cooling circuit. Due to cooling by the gravity self-circulation liquid refrigerant, the overhigh temperature of the motor and the lubricating oil of the unit can be efficiently lowered and the operation efficiency of the unit is remarkably improved on the premise that the refrigerating capability and the power of the unit are not affected.
Description
Technical field
The utility model belongs to the refrigerating machine technical field, relate to a kind of water () the source source pump, be more specifically a kind of source pump with natural circulation formula oil cooler.
Background technology
Along with the contradiction between expanding economy and energy resource supply, energy problem is just becoming the Chinese bottleneck of completing industrialization, Urbanization Progress stage and national economy high speed development of restriction, and energy-saving and emission-reduction have become the fundamental state policy that realizes economic security of the country and sustainable development.Water () the source source pump is compared with traditional water-cooled handpiece Water Chilling Units has two advantages: the one, water () the source source pump can satisfy refrigeration demand summer, can satisfy the demand of heating (alternative a part of boiler heating system winter, meet national energy-saving and reduce discharging requirement), so range of application is wider than single cold water unit; The 2nd, water () the source source pump utilizes underground water and the relatively stable and suitable characteristics of the soil moisture, when refrigeration and heating mode operation, unit all is in comparatively desirable condensation and evaporates working condition, therefore unit operation efficiency is higher.Because of its energy saving, water () the source source pump also is called as " one of the 21 century green air conditioner technology that has development prospect most take energy-conservation and environmental protection as feature ".Including at present " 12 " ENERGY PLANNING in, is that energy field is first developed theme, and its application meets the long-term energy policy of country, and is subject to concerned countries or local policy encouragement.
Water () when the source source pump heats winter, high during condenser leaving water temperature ratio refrigeration, the condensation temperature when condensation temperature when therefore heating is also freezed far above unit, the condensation temperature height can cause compressor electric motor to be in for a long time the high loaded process state, thereby unit delivery temperature and motor temperature are raise.For the protection compressor electric motor is not burned, must reduce the temperature of motor cavity.Usually solution is to carry out Liquid injection cooling to suction side and discharge chambe.During to the suction side Liquid injection cooling, liquid refrigerant is vaporized into gas and sucks discharge chambe after cooling to motor, the effective capacity of compressor will descend, and during to the discharge chambe hydrojet, the liquid cooling matchmaker is absorbed heat, and evaporation is rear to be continued compressed at compression chamber, the compressor power consumption will increase, these two kinds of hydrojet modes all can cause the decline of unit performance, and namely to improve to sacrifice unit performance be cost to unit reliability.
The utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition be overcome existing water () defective that Liquid injection cooling causes the decline of unit eer is carried out in compressor electric motor chamber and discharge chambe during the source pump heating operation of source, a kind of source pump with natural circulation formula oil cooler is provided.
For achieving the above object, source pump with natural circulation formula oil cooler of the present utility model, comprise the evaporimeter, compressor, oil eliminator, condenser, the throttling arrangement that are connected in refrigerant circulation loop, it is characterized in that: be connected a natural circulation formula oil cooler between described compressor and condenser.
As the optimization technique means, described oil cooler and a magnetic valve, a temperature sensor form an oil cooling loop, described magnetic valve is between described condenser and oil cooler, and described temperature sensor is between described compressor and oil cooler.
As the optimization technique means, described unit is the single compressor cooling cycle system or is Multi-compressor parallel cooling cycle system or the multi-compressor unit that is comprised of a plurality of independent coolings loops.
As the optimization technique means, the position of described oil cooler is lower than the position of condenser.
The beneficial effects of the utility model are: by being connected a natural circulation formula oil cooler between compressor and condenser, utilize the cooling of natural circulation liquid refrigerant, under the prerequisite that does not affect unit refrigerating capacity and power, can effectively reduce the too high motor temperature of unit and lubricating oil temperature, unit operation efficiency obviously improves.
Description of drawings
Fig. 1 be the utility model band natural circulation formula oil cooler water () the simple schematic diagram of refrigerating of source source pump;
Fig. 2 is that oil cooling loop of the present utility model consists of schematic diagram;
The number in the figure explanation: the 1-evaporimeter, the 2-compressor, the 3-oil eliminator, the 4-condenser, the 5-throttling arrangement, the 6-oil cooler, the 7-magnetic valve, the 8-temperature sensor, the 9-cooling water outlet and inlet, the 10-chilled water is taken over.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described further.
Source pump with natural circulation formula oil cooler of the present utility model, as shown in Figure 1, it comprises evaporimeter 1, compressor 2, oil eliminator 3, condenser 4, the throttling arrangement 5 that is connected in refrigerant circulation loop, the structure of above-mentioned unit and the water of prior art () the source source pump is similar, therefore no longer launch to describe, characteristics of the present utility model are compressors 2 with condenser 4 between be connected a natural circulation formula oil cooler 6.
Concrete: oil cooler 6 and a magnetic valve 7, a temperature sensor 8 form an oil cooling loop, and magnetic valve 7 is between condenser 4 and oil cooler 6, and temperature sensor 8 is between compressor 2 and oil cooler 6.Unit is the single compressor cooling cycle system or is Multi-compressor parallel cooling cycle system or the multi-compressor unit that is comprised of a plurality of independent coolings loops.The position of oil cooler is lower than the position of condenser.
As shown in Figure 2: oil cooler 6, magnetic valve 7, oil cooling loop of temperature sensor 8 common compositions, the oil cooler position should be lower than condenser, and when unit was opened, oil cooling loop was moved automatically, effectively reduce too high motor temperature and the lubricating oil temperature of unit, guarantee that unit normally moves.
Water with natural circulation formula oil cooler of the present utility model () source source pump characteristics be with traditional water () liquid of source source pump spray cooling device changes oil cooling loop into.During the unit heating operation, draw the excessively cold liquid refrigerant of a part and enter oil cooling loop 6 from condenser, the temperature of temperature sensor 9 sensing compressor oil-outs, if the temperature that senses is lower than setting value, magnetic valve 8 cuts out, and the refrigeration oil in compressor directly is back to the compressor oil return opening through oil cooler (this moment refrigeration oil not with liquid refrigerant heat exchange); If the temperature that senses is higher than setting value, magnetic valve 8 is opened, from condenser liquid refrigerant process oil cooler out, carry out heat exchange with refrigeration oil, after the heat of liquid refrigerant absorption high temperature refrigeration oil, gasification is gas, get back to condenser overhead and again carry out condensation, spray into the compressor compresses chamber after the refrigeration oil temperature descends, so iterative cycles.Thereby reach the reduction delivery temperature, the purpose of protection compressor electric motor.The driving force of oil cooler cold-producing medium is oil cooler import liquid refrigerant and the poor caused gravitational difference of exit gas refrigerant density.Adopt this mode, namely can not reduce heating capacity by unit, also can not increase the unit power consumption, unit efficiency obviously improves.
Claims (4)
1. source pump with natural circulation formula oil cooler, comprise the evaporimeter (1), compressor (2), oil eliminator (3), condenser (4), the throttling arrangement (5) that are connected in refrigerant circulation loop, it is characterized in that: be connected a natural circulation formula oil cooler (6) between described compressor (2) and condenser (4).
2. the source pump with natural circulation formula oil cooler according to claim 1, it is characterized in that: described oil cooler (6) forms an oil cooling loop with a magnetic valve (7), a temperature sensor (8), described magnetic valve (7) is between described condenser (4) and oil cooler (6), and described temperature sensor (8) is between described compressor (2) and oil cooler (6).
3. the source pump with natural circulation formula oil cooler according to claim 1 is characterized in that: described unit is the single compressor cooling cycle system or is Multi-compressor parallel cooling cycle system or the multi-compressor unit that is comprised of a plurality of independent coolings loops.
4. the source pump with natural circulation formula oil cooler according to claim 1, it is characterized in that: the position of described oil cooler is lower than the position of condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688219 CN202993635U (en) | 2012-12-11 | 2012-12-11 | Heat pump unit with gravity self-circulation oil cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220688219 CN202993635U (en) | 2012-12-11 | 2012-12-11 | Heat pump unit with gravity self-circulation oil cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993635U true CN202993635U (en) | 2013-06-12 |
Family
ID=48564809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220688219 Expired - Lifetime CN202993635U (en) | 2012-12-11 | 2012-12-11 | Heat pump unit with gravity self-circulation oil cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423624A (en) * | 2015-11-19 | 2016-03-23 | 珠海格力电器股份有限公司 | Oil cooling system, refrigerating system and refrigerating unit |
| CN106066101A (en) * | 2016-06-03 | 2016-11-02 | 济南欧菲特制冷设备有限公司 | A kind of double-effect heat pump unit |
-
2012
- 2012-12-11 CN CN 201220688219 patent/CN202993635U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423624A (en) * | 2015-11-19 | 2016-03-23 | 珠海格力电器股份有限公司 | Oil cooling system, refrigerating system and refrigerating unit |
| CN106066101A (en) * | 2016-06-03 | 2016-11-02 | 济南欧菲特制冷设备有限公司 | A kind of double-effect heat pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG KING AIR CONDITIONER CO., LTD. Free format text: FORMER NAME: ZHEJIANG KING AIR CONDITIONING EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee after: ZHEJIANG KING AIR CONDITIONER CO.,LTD. Address before: 312300 Hongxing Village, Shangyu Economic Development Zone (Cao E street, Shaoxing, Zhejiang) Patentee before: ZHEJIANG KING AIR CONDITIONING EQUIPMENT Co.,Ltd. |
|
| 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 KING Co.,Ltd. Address before: 312300 Zhejiang city of Shaoxing province Shangyu city street high road No. 18 Patentee before: ZHEJIANG KING AIR CONDITIONER CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |