CN202350390U - Automatic oil returning device for centrifugal type cold water or heat pump set - Google Patents

Automatic oil returning device for centrifugal type cold water or heat pump set Download PDF

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Publication number
CN202350390U
CN202350390U CN 201120482443 CN201120482443U CN202350390U CN 202350390 U CN202350390 U CN 202350390U CN 201120482443 CN201120482443 CN 201120482443 CN 201120482443 U CN201120482443 U CN 201120482443U CN 202350390 U CN202350390 U CN 202350390U
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CN
China
Prior art keywords
oil
oil return
cold water
pressure
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201120482443
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Chinese (zh)
Inventor
张中华
罗秋宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing General Industry Group Co Ltd
Original Assignee
Chongqing General Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing General Industry Group Co Ltd filed Critical Chongqing General Industry Group Co Ltd
Priority to CN 201120482443 priority Critical patent/CN202350390U/en
Application granted granted Critical
Publication of CN202350390U publication Critical patent/CN202350390U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an automatic oil returning device for a centrifugal type cold water or heat pump set, comprising a centrifugal type compressor (1), a high-pressure oil tank (2) and a low-pressure oil tank (3) which are arranged on the centrifugal type compressor (1), and an oil-fluorine separator (4), wherein the low-pressure oil tank (3) is provided with a Venturi spraying pipe (5); the Venturi spraying pipe (5) comprises an oil inlet, an oil outlet and an oil returning opening; the oil inlet is communicated with the high-pressure oil tank (2) through an injection pipe (6); the oil returning opening is communicated with the oil-fluorine separator (4) through an oil returning pipe (7); and the oil outlet corresponds to the low-pressure oil tank (3). The automatic oil returning device disclosed by the utility model has the advantages of compact and attractive whole arrangement and convenience for detaching, greatly simplifies the operation and manipulation difficulty of the set, saves the labor cost, improves the reliability and stability of operation of the set, and realizes the automation of operation and manipulation of the set.

Description

A kind of centrifugal cold water or source pump are used the automatic oil return device
Technical field
The utility model relates to a kind of automatic oil return device, and particularly a kind of centrifugal cold water or source pump are used the automatic oil return device.
Background technology
Centrifugal cold water or source pump that industries such as existing refrigeration air-conditioner, chemical industry, medicine are generally used, its oily fluorine separator generally is arranged in the bottom of unit, and the centrifugal compressor of centrifugal cold water or source pump then is arranged in the top of unit.The lubricating oil that oil fluorine separator reclaims can only rely on manual mode of operation utilization from the gases at high pressure that condenser attracts the lubricating oil that reclaims to be pushed back in the fuel tank of centrifugal compressor; Can't realize the fully automatic operation of unit; Need the operation of attendant's on-site manual; And must monitor at any time, thereby the risk of unit operation and unstability are higher relatively.
The utility model content
The purpose of the utility model just provides a kind of centrifugal cold water or source pump that can automatically recovery lubricating oil be pushed back in the centrifugal compressor fuel tank and uses the automatic oil return device,
The purpose of the utility model is to realize through such technical scheme; A kind of centrifugal cold water or source pump are used the automatic oil return device; Comprise centrifugal compressor, be arranged on pressure-oil tank and low-pressure reservoir and oily fluorine separator on the centrifugal compressor; Venturi nozzle is installed on low-pressure reservoir, and said venturi nozzle comprises oil-in, oil-out and oil return opening, and said oil-in is communicated with pressure-oil tank through induction tunnel; Said oil return opening is communicated with oily fluorine separator through oil return pipe, and said oil-out is corresponding with low-pressure reservoir.
In order to prevent that oil from flowing backwards, said oil return pipe is provided with check valve.
For the oil that guarantees to reclaim possesses the rerum natura condition of reusing, said oil return pipe is provided with oil strainer, and said oil strainer is between check valve and oily fluorine separator.
In order to guarantee the high leakproofness of pipeline, between said Wen Qiuli jet pipe and the induction tunnel, between Wen Qiuli jet pipe and the oil return pipe, all adopt flared type between oil return pipe and the oily fluorine separator or/and bite type or/and flange form be connected.
Owing to adopted technique scheme; The utlity model has that the entire arrangement compactness is attractive in appearance, the advantage of easy accessibility, it has simplified the unit operation operation easier greatly, has practiced thrift human cost; Improve the reliability and stability of unit operation, realized the unit operation automation of operation.
Description of drawings
The description of drawings of the utility model is following:
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation; But the utility model is not limited to these embodiments; Any on the present embodiment essence spirit improvement or substitute, still belong to the utility model claim scope required for protection.
Embodiment 1: as shown in Figure 1; A kind of centrifugal cold water or source pump are used the automatic oil return device; Comprise centrifugal compressor 1, be arranged on pressure-oil tank 2 and low-pressure reservoir 3 and oily fluorine separator 4 on the centrifugal compressor 1; Venturi nozzle 5 is installed on low-pressure reservoir 3, and said venturi nozzle 5 comprises oil-in, oil-out and oil return opening, and said oil-in is communicated with pressure-oil tank 2 through induction tunnel 6; Said oil return opening is communicated with oily fluorine separator 4 through oil return pipe 7, and said oil-out is corresponding with low-pressure reservoir 3.
In the utility model, the oil in the pressure-oil tank 2 flows into low-pressure reservoir 3 through venturi nozzle 5, simultaneously; Because the ejector action of venturi nozzle 5 has quickened flowing of oil, has reduced pressure; Make and produce pressure differential between low-pressure reservoir 3 and the oily fluorine separator 4; Pressure in the low-pressure reservoir 3 is higher than the pressure in the oily fluorine separator 4, makes that the recovered oil in the oily fluorine separator 4 flows into low-pressure reservoir 3, has so just realized the purpose of automatic oil return.
Oil return pipe 7 is provided with check valve 8, does like this to guarantee that the oil that reclaims can be recovered in the fuel tank.
Said oil return pipe 7 is provided with oil strainer 9, and said oil strainer 9 does to make the lubricating oil that is recovered in the fuel tank possess the rerum natura condition of reusing like this between check valve 8 and oily fluorine separator 4.
Between said Wen Qiuli jet pipe 5 and the induction tunnel 6, between Wen Qiuli jet pipe 5 and the oil return pipe 7, all adopt flared type between oil return pipe 7 and the oily fluorine separator 4 or/and bite type or/and flange form be connected; Adopt such connected mode, can guarantee the high-seal of pipe-line system.

Claims (4)

1. centrifugal cold water or source pump are used the automatic oil return device; Comprise centrifugal compressor (1), be arranged on pressure-oil tank (2) and low-pressure reservoir (3) and oily fluorine separator (4) on the centrifugal compressor (1); It is characterized in that: venturi nozzle (5) is installed on low-pressure reservoir (3); Said venturi nozzle (5) comprises oil-in, oil-out and oil return opening; Said oil-in is communicated with pressure-oil tank (2) through induction tunnel (6), and said oil return opening is communicated with oily fluorine separator (4) through oil return pipe (7), and said oil-out is corresponding with low-pressure reservoir (3).
2. centrifugal cold water as claimed in claim 1 or source pump are used the automatic oil return device, it is characterized in that: said oil return pipe (7) is provided with check valve (8).
3. centrifugal cold water as claimed in claim 2 or source pump are used the automatic oil return device; It is characterized in that: said oil return pipe (7) is provided with oil strainer (9), and said oil strainer (9) is positioned between check valve (8) and the oily fluorine separator (4).
4. centrifugal cold water as claimed in claim 2 or source pump are used the automatic oil return device, it is characterized in that: between said Wen Qiuli jet pipe (5) and the induction tunnel (6), between Wen Qiuli jet pipe (5) and the oil return pipe (7), all adopt flared type between oil return pipe (7) and the oily fluorine separator (4) or/and bite type or/and flange form be connected.
CN 201120482443 2011-11-29 2011-11-29 Automatic oil returning device for centrifugal type cold water or heat pump set Expired - Lifetime CN202350390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120482443 CN202350390U (en) 2011-11-29 2011-11-29 Automatic oil returning device for centrifugal type cold water or heat pump set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120482443 CN202350390U (en) 2011-11-29 2011-11-29 Automatic oil returning device for centrifugal type cold water or heat pump set

Publications (1)

Publication Number Publication Date
CN202350390U true CN202350390U (en) 2012-07-25

Family

ID=46539389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120482443 Expired - Lifetime CN202350390U (en) 2011-11-29 2011-11-29 Automatic oil returning device for centrifugal type cold water or heat pump set

Country Status (1)

Country Link
CN (1) CN202350390U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225323A (en) * 2016-09-05 2016-12-14 珠海格力电器股份有限公司 Refrigeration unit and oil return apparatus thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225323A (en) * 2016-09-05 2016-12-14 珠海格力电器股份有限公司 Refrigeration unit and oil return apparatus thereof
CN106225323B (en) * 2016-09-05 2018-10-19 珠海格力电器股份有限公司 Refrigeration unit and its oil return apparatus

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CX01 Expiry of patent term

Granted publication date: 20120725

CX01 Expiry of patent term