CN203257684U - Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism - Google Patents
Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism Download PDFInfo
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- CN203257684U CN203257684U CN 201220727190 CN201220727190U CN203257684U CN 203257684 U CN203257684 U CN 203257684U CN 201220727190 CN201220727190 CN 201220727190 CN 201220727190 U CN201220727190 U CN 201220727190U CN 203257684 U CN203257684 U CN 203257684U
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- interior volume
- slide valve
- specific ratio
- volume specific
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Abstract
The utility model belongs to a combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism. The adopted technical scheme is that the combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism comprises a mechanism body (4), a gas suction end seat (3) and a gas exhaust end seat (5), and is characterized in that the gas suction end seat (3) is connected with an internal volume ratio adjustment piston cylinder (2), an internal volume ratio adjustment piston (18) is connected with an internal volume ratio adjustment slide valve (15) through one end of a guide rod (16), the gas exhaust end seat (5) is connected with an energy adjustment slide valve piston cylinder (11), an energy adjustment slide valve piston (10) is connected with an energy adjustment slide valve (13) through one end of an energy adjustment guide rod (12), and the energy adjustment slide valve (13) is connected with the internal volume ratio adjustment slide valve (15) through a spring (14). With the combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism, the energy adjustment mechanism can effectively adjust an operation load of the screw compressor so as to adapt to the external working condition, and operation efficiency of the compressor can be increased.
Description
Technical field
The present invention relates to F25B refrigerator on the International Classification of Patents (IPC) through retrieval, and chiller plant or system's classification especially belong to assembled screw rod compressor energy and interior volume specific ratio guiding valve controlling mechanism.
Background technique
At present, in refrigeration and field of air conditioning, the user generally is to select according to maximum operating conditions to the selection of helical-lobe compressor.In the use of reality, because unloading starts or the variation of ambient conditions, the load of helical-lobe compressor can change in a larger scope, if compressor remains under the operating mode of maximum displacement, then can reduce the operational efficiency of compressor, therefore need the displacement of helical-lobe compressor is regulated; Simultaneously, because the factors such as day and night temperature, seasonal variations change ambient temperature, operating conditions to helical-lobe compressor has a huge impact, so that compression end of a period pressure is unequal with external pressure in the helical-lobe compressor, cause overcompression or under-voltage contracting phenomenon, produce to wait hold compression, etc. hold the extra power consumption such as expansions, reduce the operational efficiency of compressor, so be necessary to realize that interior volume specific ratio regulates with working conditions change.
The energy adjustment structure is to change volume flow and interior volume specific ratio by the effective length of adjustment screw rotor and the position of rod radial air vent, to adapt to the operating conditions under the different condition, reaches energy-conservation purpose.At present, energy and internal volume rate regulating mechanism generally adopt hydraulic oil driving-energy guiding valve and interior volume specific ratio guiding valve to realize the adjusting of working conditions of compressor.Its all grease chamber all is arranged in the large oil cylinder, and the cylinder body bosom separates with dividing plate, and cylinder body generally is installed in the suction end base outside of compressor.Because a cylinder has a plurality of grease chambeies, so that the length dimension of cylinder body is larger, poor sealing performance, manufacture difficulty are large.Simultaneously, owing to separate with dividing plate between the different grease chambeies, there is the possibility of mutual oil impregnate between the difference in functionality grease chamber, can accurately do not finish the piston location, affected the precision that guiding valve is regulated.
Summary of the invention
The object of the present invention is to provide a kind of assembled screw rod compressor energy and interior volume specific ratio guiding valve controlling mechanism so that capacity controlling gear effectively the operating load of adjusting screw rod compressor improve the operational efficiency of compressor adapting to outer work condition.
The technical solution used in the present invention is: suction end base (3) and exhausting end base (5) that it comprises body (4) and is arranged on both sides, it is characterized in that: described suction end base (3) links to each other with interior volume specific ratio regulating piston cylinder body (2), interior volume specific ratio regulating piston (18) is separated into ante-chamber (19) and back cavity (17) with interior volume specific ratio regulating piston cylinder body (2), ante-chamber (19) is provided with front accent (22), back cavity (17) is provided with rear accent (23), and interior volume specific ratio regulating piston (18) links to each other with interior volume specific ratio regulating slide valve (15) by an end of guide rod (16); Described exhausting end base (5) links to each other with energy adjustment guiding valve piston/cylinder (11), energy adjustment guiding valve piston (10) is separated into left chamber (6) and right chamber (7) with energy adjustment guiding valve piston/cylinder (11), left chamber (6) is provided with left accent (24), right chamber (7) is provided with right accent (25), and energy adjustment guiding valve piston (10) links to each other with energy adjustment guiding valve (13) by an end of energy adjustment guide rod (12); And energy adjustment guiding valve (13) links to each other with interior volume specific ratio regulating slide valve (15) by spring (14).
Beneficial effect of the present invention is: interior volume specific ratio is regulated cylinder body in the present invention and energy guiding valve adjusting cylinder body is installed in respectively suction end base and the exhausting end base outside, effectively reduced the length of single oil cylinder, thereby reduce its manufacture difficulty, cost and installation requirement, so that the compressor outward appearance is more well-balanced; Each grease chamber is relatively independent, does not exist to interpenetrate, and improves sealability, respectively interior volume specific ratio regulating slide valve and energy adjustment guiding valve is accurately regulated; Effectively the operating load of adjusting screw rod compressor improves the operational efficiency of compressor to adapt to outer work condition.
Description of drawings
Fig. 1 is principle of the invention figure
Wherein: 2, interior volume specific ratio regulating piston cylinder body 3, suction end base 4, body 5, exhausting end base 6, left chamber 7, right chamber 8, energy indicator 9, energy adjustment spiral guide rod 10, energy adjustment guiding valve piston 11, energy adjustment guiding valve piston/cylinder 12, energy adjustment guide rod 13, energy adjustment guiding valve 14, spring 15, interior volume specific ratio regulating slide valve 16, guide rod 17, back cavity 18, interior volume specific ratio regulating piston 19, ante-chamber 20, spiral guide rod 21, interior volume specific ratio indicator 22, front accent 23, rear accent 24, left accent 25, right accent
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Be illustrated in figure 1 as principle of the invention figure, the suction end base (3) and the exhausting end base (5) that the present invention includes body (4) and be arranged on both sides, it is characterized in that: described suction end base (3) links to each other with interior volume specific ratio regulating piston cylinder body (2), interior volume specific ratio regulating piston (18) is separated into ante-chamber (19) and back cavity (17) with interior volume specific ratio regulating piston cylinder body (2), ante-chamber (19) is provided with front accent (22), back cavity (17) is provided with rear accent (23), and interior volume specific ratio regulating piston (18) links to each other with interior volume specific ratio regulating slide valve (15) by an end of guide rod (16); Described exhausting end base (5) links to each other with energy adjustment guiding valve piston/cylinder (11), energy adjustment guiding valve piston (10) is separated into left chamber (6) and right chamber (7) with energy adjustment guiding valve piston/cylinder (11), left chamber (6) is provided with left accent (24), right chamber (7) is provided with right accent (25), and energy adjustment guiding valve piston (10) links to each other with energy adjustment guiding valve (13) by an end of energy adjustment guide rod (12); And energy adjustment guiding valve (13) links to each other with interior volume specific ratio regulating slide valve (15) by spring (14).
The other end of the guide rod described in the present invention (16) is connected with interior volume specific ratio indicator (21) by spiral guide rod (20); The other end of described energy adjustment guide rod (12) links to each other with energy indicator (8) by energy adjustment spiral guide rod (9).
When the present invention uses, when the user need to reduce load, high pressure oil advances left accent (24) by oil and enters into left chamber (6), oil in the right chamber (7) flows back to the low pressure oil pocket by right accent (25), promoting energy adjustment guiding valve (13) moves right, thereby reduce effective active length of screw rotor, thereby reduce compressor load; When needs increase load, high pressure oil enters into right chamber (7) by right accent (25), oil in the left chamber (6) flows back to the low pressure oil pocket by left accent (24), and promote energy adjustment guiding valve (13) and be moved to the left, thus effective active length of increase screw rotor.By energy indicator (8), can get information about the energy adjustment state of helical-lobe compressor.
When the user need to move under large pressure reduction or worst cold case, high pressure oil enters into ante-chamber (19) by front accent (22), oil in the back cavity (17) flows back to the low pressure oil pocket by rear accent (23), promote interior volume specific ratio regulating slide valve (15) and move right, increase the interior volume specific ratio of helical-lobe compressor; When needs reduce interior volume specific ratio, high pressure oil enters into back cavity (17) by rear accent (23), oil in the ante-chamber (19) flows back to the low pressure oil pocket by front accent (22), promotes interior volume specific ratio regulating slide valve (15) and is moved to the left, and reduces the interior volume specific ratio of helical-lobe compressor.The position of interior volume specific ratio regulating slide valve (15) can show accurately by interior volume specific ratio indicator (21).
Claims (2)
1. an assembled screw rod compressor energy and interior volume specific ratio guiding valve controlling mechanism, suction end base (3) and exhausting end base (5) that it comprises body (4) and is arranged on both sides, it is characterized in that: described suction end base (3) links to each other with interior volume specific ratio regulating piston cylinder body (2), interior volume specific ratio regulating piston (18) is separated into ante-chamber (19) and back cavity (17) with interior volume specific ratio regulating piston cylinder body (2), ante-chamber (19) is provided with front accent (22), back cavity (17) is provided with rear accent (23), and interior volume specific ratio regulating piston (18) links to each other with interior volume specific ratio regulating slide valve (15) by an end of guide rod (16); Described exhausting end base (5) links to each other with energy adjustment guiding valve piston/cylinder (11), energy adjustment guiding valve piston (10) is separated into left chamber (6) and right chamber (7) with energy adjustment guiding valve piston/cylinder (11), left chamber (6) is provided with left accent (24), right chamber (7) is provided with right accent (25), and energy adjustment guiding valve piston (10) links to each other with energy adjustment guiding valve (13) by an end of energy adjustment guide rod (12); And energy adjustment guiding valve (13) links to each other with interior volume specific ratio regulating slide valve (15) by spring (14).
2. assembled screw rod compressor energy according to claim 1 and interior volume specific ratio guiding valve controlling mechanism, it is characterized in that: the other end of described guide rod (16) is connected with interior volume specific ratio indicator (21) by spiral guide rod (20); The other end of described energy adjustment guide rod (12) links to each other with energy indicator (8) by energy adjustment spiral guide rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727190 CN203257684U (en) | 2012-12-26 | 2012-12-26 | Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220727190 CN203257684U (en) | 2012-12-26 | 2012-12-26 | Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257684U true CN203257684U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220727190 Expired - Lifetime CN203257684U (en) | 2012-12-26 | 2012-12-26 | Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257684U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782036A (en) * | 2014-12-25 | 2016-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and internal volume ratio adjusting method for compressor |
| CN107524599A (en) * | 2017-10-13 | 2017-12-29 | 苏州利森空调制冷有限公司 | Single screw compressor internal volume rate regulating mechanism |
| WO2020034520A1 (en) * | 2018-08-13 | 2020-02-20 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjustment mechanism and screw compressor |
| CN110925199A (en) * | 2019-11-08 | 2020-03-27 | 珠海格力电器股份有限公司 | Screw compressor, control method thereof and refrigeration system |
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
-
2012
- 2012-12-26 CN CN 201220727190 patent/CN203257684U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782036A (en) * | 2014-12-25 | 2016-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and internal volume ratio adjusting method for compressor |
| CN107524599A (en) * | 2017-10-13 | 2017-12-29 | 苏州利森空调制冷有限公司 | Single screw compressor internal volume rate regulating mechanism |
| WO2020034520A1 (en) * | 2018-08-13 | 2020-02-20 | 珠海格力电器股份有限公司 | Slide valve, slide valve adjustment mechanism and screw compressor |
| US11365736B2 (en) | 2018-08-13 | 2022-06-21 | Gree Electric Appliances, Inc. Of Zhuhai | Slide valve, slide valve adjustment mechanism and screw compressor |
| WO2021031488A1 (en) * | 2019-08-21 | 2021-02-25 | 珠海格力电器股份有限公司 | Compressor and air-conditioning system |
| CN110925199A (en) * | 2019-11-08 | 2020-03-27 | 珠海格力电器股份有限公司 | Screw compressor, control method thereof and refrigeration system |
| CN110925199B (en) * | 2019-11-08 | 2020-11-06 | 珠海格力电器股份有限公司 | Screw compressor, control method thereof and refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUJIAN SNOWMAN CO., LTD. Free format text: FORMER OWNER: FUJIAN SNOWMAN COMPRESSOR TECHNOLOGY CO., LTD. Effective date: 20150408 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150408 Address after: 350217 Fujian city of Changle Province Li Ren Industrial Zone Patentee after: FUJIAN SNOWMAN Co.,Ltd. Address before: 350217 Fujian city of Fuzhou province Changle city Fuzhou Binhai Industrial Zone (Panasonic town of Changle city) Patentee before: FUJIAN SNOWMAN COMPRESSOR TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |