CN201851394U - Sealing device for centrifugal pump - Google Patents

Sealing device for centrifugal pump Download PDF

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Publication number
CN201851394U
CN201851394U CN2010206210509U CN201020621050U CN201851394U CN 201851394 U CN201851394 U CN 201851394U CN 2010206210509 U CN2010206210509 U CN 2010206210509U CN 201020621050 U CN201020621050 U CN 201020621050U CN 201851394 U CN201851394 U CN 201851394U
Authority
CN
China
Prior art keywords
packing
sealing
gland
housing
centrifugal pump
Prior art date
Application number
CN2010206210509U
Other languages
Chinese (zh)
Inventor
孟强
Original Assignee
潍坊兴潍科技创新咨询服务中心
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 潍坊兴潍科技创新咨询服务中心 filed Critical 潍坊兴潍科技创新咨询服务中心
Priority to CN2010206210509U priority Critical patent/CN201851394U/en
Application granted granted Critical
Publication of CN201851394U publication Critical patent/CN201851394U/en

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Abstract

The utility model provides a sealing device for a centrifugal pump, which comprises a shell, a shaft sleeve and a gland, wherein the shaft sleeve penetrates through the middle of the shell, the gland is arranged at one end of the shell by using a bolt, and a packing chamber is enclosed by the shell, the shaft sleeve and the gland. The sealing device also comprises a gland packing which is a muddy gland packing filled inside the packing chamber, two ends of the muddy gland packing are respectively provided with baffle rings, and the shell is provided with a filling port. The sealing device can reduce friction loss and power consumption, the sealing element is easy to replace, and filling is simple.

Description

The centrifugal pump seal arrangement

Technical field

The utility model relates to a kind of seal arrangement, is specifically related to a kind of seal arrangement that is mainly used on the centrifugal pump.

Background technique

At present, the foam pump that desulfurization post, company cleaning shop is used mostly is IH type one step single sucking chemical centrifugal pump, and flexible graphite packing is generally adopted at the sealing position, and pump inlet pressure is a normal pressure during proper functioning, outlet pressure is no more than 0.5MPa, medium temperature is 40 ℃, and revolution speed is 2900r/min, in the early stage, the operating conditions of pump is more stable, but this seal arrangement also exists obvious defects: 1. have relative movement between graphite packing and the axle sleeve, and frictional loss is bigger, power consumption is higher; 2. packing cavity is subjected to dielectric corrosion and operating mode adjustment influence after long-term the use, the packing seal deleterious, and also packing cavity is difficult for changing after being corroded; 3. the seal arrangement of conventional construction, stuffing box packing need be opened the protecgulum of packing cavity row again and fill when filling, operate cumbersome.

The model utility content

The purpose of this utility model is to provide a kind of can reduce frictional wear, reduces power consumption, and Sealing is changed easily, and filler is filled simple centrifugal pump seal arrangement.

For achieving the above object, the utility model is by the following technical solutions:

The centrifugal pump seal arrangement, comprise housing, axle sleeve and gland, described axle sleeve runs through described housing middle part, described housing one end utilizes bolt that gland is installed, described housing, axle sleeve and gland are surrounded as packing cavity, also comprise stuffing box packing, described stuffing box packing is filled in packing cavity inside, be the stuffing box packing of mud shape, this mud shape stuffing box packing is by the cotton-shaped artificial synthesis fiber of high strength high-purity dispersion, extraordinary sealing compound, oiling agent produces by strict technology is synthetic, it is a kind of black gunk with stickiness, feel is satiny, and can the color of water not exerted an influence after water contacts, and major parameter is: 280 ℃ of maximum temperatures, maximum pressure 2MPa, linear velocity 20m/s, pH value 1~14,17 cubic inches every pound of fill volume.

As a kind of improvement, described mud sealing shape filler two ends are provided with baffle ring respectively, form cavity between the baffle ring, and stuffing box packing then is filled in this cavity, and anterior baffle ring adopts gland to install, and the rear portion baffle ring then is installed on the inner walls.Baffle ring has not only strengthened the sealing of packing cavity, makes stuffing box packing be difficult for leaking, and after being subjected to corrosion damage, changes easily.

As a kind of improvement, on the described housing material feeding port is set, can utilize this material feeding port to fill stuffing box packing.

Owing to adopted said structure, the utlity model has following beneficial effect:

1. frictional wear is little, power consumption is low: when axle rotatablely moves, fiber in the stuffing box packing of mud shape returns to be wrapped on the axle sleeve and with axle sleeve and rotates synchronously, forms a rotating layer, near the packing cavity inwall, muddy packing adheres on it, form motionless layer, the rotation of pump shaft makes the interjacent packing layer of muddy packing do shearing motion like this, and its interfacial friction factor is very little, make frictional wear little, power consumption also reduces;

2. Sealing is changed easily: the utility model is provided with baffle ring in the Seal cage rear and front end, and this baffle ring has not only strengthened the sealing of Seal cage as supporting Sealing, and makes Sealing change very simple and fast;

3. filler is filled simple: the utility model only need adopt the pressure sealing rifle to inject the stuffing box packing of mud shape from material feeding port and get final product.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Shown in 1 figure, the centrifugal pump seal arrangement, comprise housing 1, axle sleeve 2 and gland 3, described axle sleeve 2 runs through described housing 1 middle part, described housing 1 one ends utilize bolt that gland 3 is installed, described housing 1, axle sleeve 2 and gland 3 are surrounded as packing cavity 4, in packing cavity 4, fill stuffing box packing 5, sealing filler 5 is the stuffing box packing of mud shape, and this mud shape stuffing box packing is by the cotton-shaped artificial synthesis fiber of high strength high-purity dispersion, extraordinary sealing compound, oiling agent produces by strict technology is synthetic, it is a kind of black gunk with stickiness, feel is satiny, and can the color of water not exerted an influence after water contacts, and major parameter is: 280 ℃ of maximum temperatures, maximum pressure 2MPa, linear velocity 20m/s, pH value 1~14,17 cubic inches every pound of fill volume; Described mud shape stuffing box packing two ends are provided with baffle ring 6 respectively and form cavity, 5 of stuffing box packing are filled in this cavity, anterior baffle ring adopts gland 3 to install, the rear portion baffle ring then is installed on housing 1 inwall, baffle ring 6 has not only strengthened the sealing of packing cavity, make stuffing box packing 5 be difficult for leaking, and after being subjected to corrosion damage, change easily; On the described housing 1 material feeding port 7 is set, can utilizes this material feeding port 7 to fill stuffing box packing 5.

Principle of the present utility model is as follows:

Mud shape stuffing box packing internal and external layer sticks to respectively on axle sleeve 2 and packing cavity 5 inwalls, pumped medium must puncture muddy packing and just may leak, because filler and the no relative movement of axle, the axle so do not wear and tear, and the friction factor between the packing layer is very little, frictional loss than common fillers and axle sleeve is little, and power consumption is low; Being provided with of baffle ring can strengthen sealing, and can make that maintenance is also very simple only to the part replacement of damage.

Below only be that of the present utility model for example protection domain of the present utility model is as the criterion with the content of claim, any based on modification of the present utility model all within protection domain of the present utility model.

Claims (3)

1. centrifugal pump seal arrangement, comprise housing, axle sleeve and gland, described axle sleeve runs through described housing middle part, described housing one end utilizes bolt that gland is installed, described housing, axle sleeve and gland are surrounded as packing cavity, it is characterized in that: described seal arrangement also comprises the mud shape stuffing box packing that is filled in packing cavity inside.
2. centrifugal pump seal arrangement according to claim 1 is characterized in that: described mud shape stuffing box packing two ends are provided with baffle ring respectively.
3. centrifugal pump seal arrangement according to claim 1 is characterized in that: on the described housing material feeding port is set.
CN2010206210509U 2010-11-14 2010-11-14 Sealing device for centrifugal pump CN201851394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206210509U CN201851394U (en) 2010-11-14 2010-11-14 Sealing device for centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206210509U CN201851394U (en) 2010-11-14 2010-11-14 Sealing device for centrifugal pump

Publications (1)

Publication Number Publication Date
CN201851394U true CN201851394U (en) 2011-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206210509U CN201851394U (en) 2010-11-14 2010-11-14 Sealing device for centrifugal pump

Country Status (1)

Country Link
CN (1) CN201851394U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104165154A (en) * 2014-08-15 2014-11-26 苏州通力电气有限公司 Submerged pump stuffing box capable of displaying amount of residual stuffing
CN104165155A (en) * 2014-08-15 2014-11-26 苏州通力电气有限公司 Stuffing box capable of displaying allowance stepwise
CN104653510A (en) * 2013-11-20 2015-05-27 铜陵市大成轧辊有限责任公司 Double suction pump sealing device
CN104896097A (en) * 2015-05-13 2015-09-09 刘卫东 Muddy shaft seal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104653510A (en) * 2013-11-20 2015-05-27 铜陵市大成轧辊有限责任公司 Double suction pump sealing device
CN104165154A (en) * 2014-08-15 2014-11-26 苏州通力电气有限公司 Submerged pump stuffing box capable of displaying amount of residual stuffing
CN104165155A (en) * 2014-08-15 2014-11-26 苏州通力电气有限公司 Stuffing box capable of displaying allowance stepwise
CN104165154B (en) * 2014-08-15 2016-05-04 苏州赛斯德工程设备有限公司 Immersible pump shows stuffing-box by filler surplus
CN104896097A (en) * 2015-05-13 2015-09-09 刘卫东 Muddy shaft seal

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Weifang Zhenxing Risheng Chemical Co.,Ltd.

Assignor: Weifang Xingwei Technology Innovation Consultation Service Center

Contract record no.: 2011370000407

Denomination of utility model: Centrifugal-pump sealing device

Granted publication date: 20110601

License type: Exclusive License

Record date: 20110830

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110601

Termination date: 20131114

C17 Cessation of patent right