CN102927057A - Cooling structure of mechanical seal of centrifugal pump - Google Patents

Cooling structure of mechanical seal of centrifugal pump Download PDF

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Publication number
CN102927057A
CN102927057A CN2012104990035A CN201210499003A CN102927057A CN 102927057 A CN102927057 A CN 102927057A CN 2012104990035 A CN2012104990035 A CN 2012104990035A CN 201210499003 A CN201210499003 A CN 201210499003A CN 102927057 A CN102927057 A CN 102927057A
Authority
CN
China
Prior art keywords
mechanical seal
pump
cooling
cover
centrifugal pump
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.)
Pending
Application number
CN2012104990035A
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Chinese (zh)
Inventor
杜志高
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.)
WUXI AIBIDE PUMP INDUSTRY Co Ltd
Original Assignee
WUXI AIBIDE PUMP INDUSTRY 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 WUXI AIBIDE PUMP INDUSTRY Co Ltd filed Critical WUXI AIBIDE PUMP INDUSTRY Co Ltd
Priority to CN2012104990035A priority Critical patent/CN102927057A/en
Publication of CN102927057A publication Critical patent/CN102927057A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a cooling structure of a mechanical seal of a centrifugal pump. The cooling structure comprises a pump cover and a mechanical seal gland which are arranged on a shaft, wherein the mechanical seal gland is fixed to the outer side of the pump cover; a mechanical seal chamber in the shape of a horn mouth and used for mounting the mechanical seal is arranged between the pump cover and the shaft; and the large end of the mechanical seal chamber is positioned on one side of a centrifugal pump body. According to the cooling structure of the mechanical seal of the centrifugal pump, the mechanical seal chamber is in the shape of the horn mouth, so that the flushing water in the pump body can easily flow into the mechanical seal chamber to cool and lubricate the mechanical seal, and a device for guiding the water out from an outlet of the pump for flushing can be saved, and as a result, the cost is saved, and the centrifugal pump cover can be simply and conveniently mounted; and furthermore, the space of the mechanical seal chamber is enlarged due to the shape of the horn mouth, and once particles are contained in the medium when the mechanical seal is used, the friction between the particles and the mechanical seal is difficultly generated, and the mechanical seal cannot be damaged.

Description

The cooling structure of mechanical face seals of centrifugal pumps
Technical field
The present invention relates to centrifugal pump, specifically a kind of cooling structure of mechanical face seals of centrifugal pumps.
Background technique
Horizontal single-stage centrifugal pump as shown in Figure 1, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in the suspension 5 by bearing and an end of axle 6 stretches in the pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and the axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
Above-mentioned centrifugal pump is for cooling and lubrication mechanical seal, between the outlet of the pump housing 1 and machine sealed cover 4, Rinsing unit is installed, wash mechanical seal from outlet diversion to the machine sealed cover 4 of the pump housing 1, this structure has not only increased the manufacture cost of centrifugal pump, and installs loaded down with trivial details; In addition, the machine sealing chamber 7 of pump cover 3 is cylindrical, and the space is less, if when containing particulate matter in the medium in use, cause easily the friction of particulate matter and mechanical seal, causes the damage of mechanical seal, and centrifugal pump is leaked.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of cooling structure of simple in structure, mechanical face seals of centrifugal pumps that cost is low is provided.
According to technological scheme of the present invention: a kind of cooling structure of mechanical face seals of centrifugal pumps, comprise the pump cover and the machine sealed cover that are installed on the axle, described machine sealed cover is fixed on the outside of described pump cover, be provided with the machine sealing chamber that mechanical seal is installed between described pump cover and the described axle, described machine sealing chamber is toroidal, and the large end of described machine sealing chamber is positioned at a side of described centrifugal pump body.
The cone angle of described machine sealing chamber is 30 °.
Technique effect of the present invention is: the machine sealing chamber among the present invention is toroidal, the sparge water of self can be easy to enter in the machine sealing chamber in the pump housing, cooling and lubricating mechanical seal, so just can save from the device of pump discharge diversion flushing, not only saved cost, but also made installation easier; In addition, the machine sealing chamber of toroidal has strengthened the space, if in use contain particulate matter in the medium, also is not easy to occur the friction between particulate matter and the mechanical seal, can not cause the infringement of mechanical seal.
Description of drawings
Fig. 1 is the structural representation of centrifugal pump of the prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the structure cross-sectional schematic of the pump cover 3 among the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Among Fig. 1~Fig. 3, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5, axle 6, machine sealing chamber 7, central through bore 8 etc.
As shown in Figure 2, it is a kind of use centrifugal pump of the present invention, comprise the pump housing 1, impeller 2, pump cover 3, machine sealed cover 4, suspension 5 and axle 6, pump cover 3 is fixed on a side of the pump housing 1, form the pump chamber that impeller 2 is installed between pump cover 3 and the pump housing 1, suspension 5 is fixed on a side of pump cover 3, axle 6 is bearing in the suspension 5 by bearing and an end of axle 6 stretches in the pump chamber, impeller 2 is arranged in the pump chamber of the pump housing 1 and is fixed on the end of axle 6, be provided with the machine sealing chamber 7 that mechanical seal is installed between pump cover 3 and the axle 6, the outside of pump cover 3 is equipped with the machine sealed cover 4 of positioning mechanical sealing.
As shown in Figure 3, pump cover 3 in the above-mentioned centrifugal pump, comprise the central through bore 8 that is arranged on the pump cover 3, be provided with the machine sealing chamber 7 that links to each other with central through bore 8 at central through bore 8 towards a side of centrifugal pump body 1, this machine sealing chamber 7 is toroidal, and the large end of machine sealing chamber 7 is positioned at a side of centrifugal pump body 1.The cone angle of machine sealing chamber 7 is preferably 30 °.
Machine sealing chamber 7 among the present invention is toroidal, the sparge water of self can be easy to enter in the machine sealing chamber 7 in the pump housing 1, and cooling and lubricating mechanical seal so just can be saved from the device of pump discharge diversion flushing, not only saved cost, but also made installation easier; In addition, the machine sealing chamber 7 of toroidal has strengthened the space, if in use contain particulate matter in the medium, also is not easy to occur the friction between particulate matter and the mechanical seal, can not cause the infringement of mechanical seal.

Claims (2)

1. the cooling structure of a mechanical face seals of centrifugal pumps, comprise the pump cover (3) and the machine sealed cover (4) that are installed on the axle (6), described machine sealed cover (4) is fixed on the outside of described pump cover (3), be provided with the machine sealing chamber (7) that mechanical seal is installed between described pump cover (3) and the described axle (6), it is characterized in that: described machine sealing chamber (7) is toroidal, and the large end of described machine sealing chamber (7) is positioned at a side of centrifugal pump body (1).
2. according to the cooling structure of mechanical face seals of centrifugal pumps claimed in claim 1, it is characterized in that: the cone angle of described machine sealing chamber (7) is 30 °.
CN2012104990035A 2012-11-29 2012-11-29 Cooling structure of mechanical seal of centrifugal pump Pending CN102927057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104990035A CN102927057A (en) 2012-11-29 2012-11-29 Cooling structure of mechanical seal of centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104990035A CN102927057A (en) 2012-11-29 2012-11-29 Cooling structure of mechanical seal of centrifugal pump

Publications (1)

Publication Number Publication Date
CN102927057A true CN102927057A (en) 2013-02-13

Family

ID=47641952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012104990035A Pending CN102927057A (en) 2012-11-29 2012-11-29 Cooling structure of mechanical seal of centrifugal pump

Country Status (1)

Country Link
CN (1) CN102927057A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671227A (en) * 2013-12-09 2014-03-26 无锡艾比德泵业有限公司 Dyeing pump with mechanical seal cavity
CN109098973A (en) * 2018-08-13 2018-12-28 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump that noise is small
CN109236661A (en) * 2018-08-13 2019-01-18 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump of abrasion-proof corrosion-proof
CN109236662A (en) * 2018-08-13 2019-01-18 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump that failure rate is low
CN109268275A (en) * 2018-08-13 2019-01-25 安徽卧龙泵阀股份有限公司 It is a kind of to use the centrifugal pump stablized, the service life is long

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1693716A (en) * 2005-04-13 2005-11-09 陈银灿 Pump shaft sealing cavity
GB2438702A (en) * 2006-05-31 2007-12-05 Weir Pumps Ltd Efficiency maintenance apparatus for a mechanical assembly
CN201705715U (en) * 2010-06-04 2011-01-12 杭州振兴工业泵制造有限公司 Shaft sealing cover of centrifugal pump with flow guide vane
CN102748323A (en) * 2012-06-29 2012-10-24 江苏国泉泵业制造有限公司 High specific speed helical centrifugal pump
CN202971340U (en) * 2012-11-29 2013-06-05 无锡艾比德泵业有限公司 Cooling structure of centrifugal pump mechanical seal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1693716A (en) * 2005-04-13 2005-11-09 陈银灿 Pump shaft sealing cavity
GB2438702A (en) * 2006-05-31 2007-12-05 Weir Pumps Ltd Efficiency maintenance apparatus for a mechanical assembly
CN201705715U (en) * 2010-06-04 2011-01-12 杭州振兴工业泵制造有限公司 Shaft sealing cover of centrifugal pump with flow guide vane
CN102748323A (en) * 2012-06-29 2012-10-24 江苏国泉泵业制造有限公司 High specific speed helical centrifugal pump
CN202971340U (en) * 2012-11-29 2013-06-05 无锡艾比德泵业有限公司 Cooling structure of centrifugal pump mechanical seal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671227A (en) * 2013-12-09 2014-03-26 无锡艾比德泵业有限公司 Dyeing pump with mechanical seal cavity
CN109098973A (en) * 2018-08-13 2018-12-28 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump that noise is small
CN109236661A (en) * 2018-08-13 2019-01-18 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump of abrasion-proof corrosion-proof
CN109236662A (en) * 2018-08-13 2019-01-18 安徽卧龙泵阀股份有限公司 A kind of centrifugal pump that failure rate is low
CN109268275A (en) * 2018-08-13 2019-01-25 安徽卧龙泵阀股份有限公司 It is a kind of to use the centrifugal pump stablized, the service life is long
CN109098973B (en) * 2018-08-13 2020-12-29 安徽卧龙泵阀股份有限公司 Centrifugal pump with low noise
CN109236662B (en) * 2018-08-13 2020-12-29 安徽卧龙泵阀股份有限公司 Centrifugal pump with low failure rate
CN109236661B (en) * 2018-08-13 2020-12-29 安徽卧龙泵阀股份有限公司 Wear-resisting corrosion resistant centrifugal pump

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Application publication date: 20130213