CN201896782U - Combined seal device of high-pressure low-temperature light hydrocarbon pump - Google Patents

Combined seal device of high-pressure low-temperature light hydrocarbon pump Download PDF

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Publication number
CN201896782U
CN201896782U CN2011200177179U CN201120017717U CN201896782U CN 201896782 U CN201896782 U CN 201896782U CN 2011200177179 U CN2011200177179 U CN 2011200177179U CN 201120017717 U CN201120017717 U CN 201120017717U CN 201896782 U CN201896782 U CN 201896782U
Authority
CN
China
Prior art keywords
ring
rotating ring
moving
shape circle
spring
Prior art date
Application number
CN2011200177179U
Other languages
Chinese (zh)
Inventor
张宝君
Original Assignee
大连华阳光大密封有限公司
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 大连华阳光大密封有限公司 filed Critical 大连华阳光大密封有限公司
Priority to CN2011200177179U priority Critical patent/CN201896782U/en
Application granted granted Critical
Publication of CN201896782U publication Critical patent/CN201896782U/en

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Abstract

The utility model discloses a combined seal device of a high-pressure low-temperature light hydrocarbon pump and relates to the technical field of mechanical seal. The seal device comprises a static ring O-shaped ring, a static ring, a moving ring, a snap ring, a moving ring O-shaped ring, a push ring, a spring, a top thread and a transmission sleeve, wherein the static ring O-shaped ring is connected with the static ring, one end of the moving ring is in sliding contact with the end surface of the static ring, and a sealing surface is formed; the moving ring O-shaped ring is arranged at the other end of the moving ring, and the common end surface of the moving ring and the moving ring O-shaped ring is contacted with the push ring; the transmission sleeve is fixed on a pump shaft through the top thread, the snap ring is fixed on the transmission sleeve, a cavity is formed between the snap ring and the pump shaft, and the spring and the push ring are arranged in the cavity; and the moving ring, the snap ring, the moving ring O-shaped ring, the push ring, the spring, the top thread and the transmission sleeve together constitute a rotating device which is sleeved on the pump shaft. The seal device disclosed by the utility model effectively controls the pressure deformation and the temperature deformation of the static ring and the moving ring under high pressure and low temperature, and the heat dissipation performance of the device is improved.

Description

The combination sealing arrangement of high pressure low temperature light hydrocarbon pump
Technical field
The utility model relates to the mechanical sealing technology field, relates in particular to a kind of combination sealing arrangement of high pressure low temperature light hydrocarbon pump.
Background technique
As everyone knows, the light hydrocarbon medium is broad-spectrum organic chemical industry's basic material.Liquefied hydrocarbon has the remarkable characteristic of high pressure, low temperature, so in the petrochemical industry course of conveying be and important.
At present, known mechanical seal device mainly is made up of rotating ring, stationary ring, spring, auxiliary seal ring and transmitting assemblies.Under the effect of spring force and pressure medium, the sealing surface of rotating ring, stationary ring is fitted, and between its end face, form the thin liquid film of one deck, play lubrication when rotating relatively to guarantee rotating ring, stationary ring.But in the light hydrocarbon medium of high pressure, low temperature and since the compressive deformation of seal ring during with temperature distortion and running the temperature of generation can influence liquid film between end face, and make liquid film to form.The end face of mechanical seal device just is in dry condition like this, can't satisfy macrocyclic running requirements.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, improve, a kind of combination sealing arrangement of high pressure low temperature light hydrocarbon pump is provided, can control pressure distortion and the temperature deformation under high pressure, low temperature of rotating ring, stationary ring effectively, and improve the structure of stationary ring, its thermal diffusivity is effectively improved.
To achieve these goals, the technical solution of the utility model is as follows:
The combination sealing arrangement of high pressure low temperature light hydrocarbon pump comprises stationary ring O shape circle, stationary ring, rotating ring, snap ring, rotating ring O shape circle, throw-out collar, spring, jackscrew and drive sleeve; Stationary ring O shape circle is connected with stationary ring, and an end of rotating ring and the end face sliding contact of stationary ring also form sealing surface; Rotating ring O shape circle is located at the other end of rotating ring, and rotating ring contacts with throw-out collar with the common end face of rotating ring O shape circle; Drive sleeve is fixed on the pump shaft by jackscrew, and snap ring is fixed on the drive sleeve, and and pump shaft between form a cavity, spring and throw-out collar place in the cavity; Rotating ring, snap ring, rotating ring O shape circle, throw-out collar, spring, jackscrew and drive sleeve constitute whirligig jointly, and are enclosed within on the pump shaft.
Have the heat radiation groove on the end face of above-mentioned stationary ring; Described rotating ring is provided with step at its front end, and described step is corresponding with described heat radiation groove.
The beneficial effects of the utility model are: the sealing device has been controlled the rotating ring under the cryogenic high pressure working condition and the coupling amount of deformation of stationary ring effectively, makes that this device can the reliable running in long period ground.
Description of drawings
Fig. 1 is the combination sealing arrangement structural representation of the utility model high pressure low temperature light hydrocarbon pump.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1, stationary ring O shape circle, 2, stationary ring, 20, the heat radiation groove, 3, rotating ring, 30, step, 4, snap ring, 5, rotating ring O shape circle, 6, throw-out collar, 7, spring, 8, jackscrew, 9, drive sleeve.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, the combination sealing arrangement of high pressure low temperature light hydrocarbon pump of the present utility model comprises stationary ring O shape circle 1, stationary ring 2, rotating ring 3, snap ring 4, rotating ring O shape circle 5, throw-out collar 6, spring 7, jackscrew 8 and drive sleeve 9; Stationary ring O shape circle 1 is connected with stationary ring 2, and an end of rotating ring 3 and the end face sliding contact of stationary ring 2 also form sealing surface; Rotating ring O shape circle 5 is located at the other end of rotating ring 3, and rotating ring 3 contacts with throw-out collar 6 with the common end face of rotating ring O shape circle 5; Drive sleeve 9 is fixed on the pump shaft by jackscrew 8, and snap ring 4 is fixed on the drive sleeve 9, and and pump shaft between form a cavity, spring 7 and throw-out collar 6 place in the cavity; Rotating ring 3, snap ring 4, rotating ring O shape circle 5, throw-out collar 6, spring 7, jackscrew 8 and drive sleeve 9 common formation whirligigs, and be enclosed within on the pump shaft.
Seal arrangement of the present utility model is formed stationary apparatus by stationary ring O shape circle 1, stationary ring 2, forms whirligig by rotating ring 3, snap ring 4, rotating ring O shape circle 5, throw-out collar 6, spring 7, jackscrew 8 and drive sleeve 9.In the running, drive sleeve 9 is locked on pump shaft by jackscrew 8, and drive drive sleeve 9 rotations, drive sleeve 9 drives rotating ring O shape circle 5, throw-out collar 6, spring 7 and rotating ring 3 and rotates together, along with long running, sealing surface wear, spring 7 promote rotating ring O shape circle, throw-out collar 6 and rotating ring 3 together along the pump shaft axial motion, play compensating action.
Front end at rotating ring 3 is provided with step 30, and pilot pressure is to rotating ring 3 caused distortion effectively.When rotating ring 3 because of stressed when causing bending deflection, the step 30 of front end has increased rotating ring 3 heads thickness radially, the ability of resistance to deformation strengthens.
Have corresponding heat radiation groove 20 on the end face of stationary ring 2, the quantity of heat radiation groove 20 is in 4 ~ 30 scopes, and groove width promotes the heat radiation of stationary ring 2 effectively in 3 ~ 10mm scope.

Claims (3)

1. the combination sealing arrangement of high pressure low temperature light hydrocarbon pump, it is characterized in that the sealing device comprises stationary ring O shape circle (1), stationary ring (2), rotating ring (3), snap ring (4), rotating ring O shape circle (5), throw-out collar (6), spring (7), jackscrew (8) and drive sleeve (9); Stationary ring O shape circle (1) is connected with stationary ring (2), and the end face sliding contact of an end of rotating ring (3) and stationary ring (2) also forms sealing surface; Rotating ring O shape circle (5) is located at the other end of rotating ring (3), and rotating ring (3) contacts with throw-out collar (6) with the common end face of rotating ring O shape circle (5); Drive sleeve (9) is fixed on the pump shaft by jackscrew (8), and snap ring (4) is fixed on the drive sleeve (9), and and pump shaft between form a cavity, spring (7) and throw-out collar (6) place in the cavity; Rotating ring (3), snap ring (4), rotating ring O shape circle (5), throw-out collar (6), spring (7), jackscrew (8) and drive sleeve (9) constitute whirligig jointly, and are enclosed within on the pump shaft.
2. the combination sealing arrangement of high pressure low temperature light hydrocarbon pump as claimed in claim 1 is characterized in that, has heat radiation groove (20) on the end face of described stationary ring (2).
3. the combination sealing arrangement of high pressure low temperature light hydrocarbon pump as claimed in claim 1 or 2 is characterized in that, described rotating ring (3) is provided with step (30) at its front end, and described step (30) is corresponding with described heat radiation groove (20).
CN2011200177179U 2011-01-20 2011-01-20 Combined seal device of high-pressure low-temperature light hydrocarbon pump CN201896782U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200177179U CN201896782U (en) 2011-01-20 2011-01-20 Combined seal device of high-pressure low-temperature light hydrocarbon pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200177179U CN201896782U (en) 2011-01-20 2011-01-20 Combined seal device of high-pressure low-temperature light hydrocarbon pump

Publications (1)

Publication Number Publication Date
CN201896782U true CN201896782U (en) 2011-07-13

Family

ID=44254690

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200177179U CN201896782U (en) 2011-01-20 2011-01-20 Combined seal device of high-pressure low-temperature light hydrocarbon pump

Country Status (1)

Country Link
CN (1) CN201896782U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518810A (en) * 2011-12-29 2012-06-27 大连华阳光大密封有限公司 Mechanical seal capable of enduring forward and reverse pressures
CN102518601A (en) * 2011-12-29 2012-06-27 大连华阳光大密封有限公司 Mechanical sealing structure for light hydrocarbons
CN102563078A (en) * 2012-03-08 2012-07-11 大连华阳光大密封有限公司 Bidirectional pressure-bearing mechanical seal structure applied to medium containing solid particles
CN102606743A (en) * 2012-03-28 2012-07-25 大连华阳光大密封有限公司 Anti-detrusion structure of O-shaped ring
CN102606742A (en) * 2012-03-08 2012-07-25 大连华阳光大密封有限公司 Mechanical seal transmission device applied to high-pressure working conditions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518810A (en) * 2011-12-29 2012-06-27 大连华阳光大密封有限公司 Mechanical seal capable of enduring forward and reverse pressures
CN102518601A (en) * 2011-12-29 2012-06-27 大连华阳光大密封有限公司 Mechanical sealing structure for light hydrocarbons
CN102563078A (en) * 2012-03-08 2012-07-11 大连华阳光大密封有限公司 Bidirectional pressure-bearing mechanical seal structure applied to medium containing solid particles
CN102606742A (en) * 2012-03-08 2012-07-25 大连华阳光大密封有限公司 Mechanical seal transmission device applied to high-pressure working conditions
CN102606743A (en) * 2012-03-28 2012-07-25 大连华阳光大密封有限公司 Anti-detrusion structure of O-shaped ring

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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: DALIAN HUAYANG SEALS CO., LTD.

Free format text: FORMER NAME: DALIAN HUAYANG GUANGDA SEALING CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning

Patentee after: DALIAN HUAYANG SEALS CO., LTD.

Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning

Patentee before: Dalian Huayang Seals Co., Ltd.

Address after: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning

Patentee after: DALIAN HUAYANG SEALS CO., LTD.

Address before: 116036, 25, Xu Xu Road, Dalian, Ganjingzi, Liaoning

Patentee before: Dalian Huayang Seals Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110713