CN208845370U - A kind of centrifugal pump with water-cooled pump cover and sealing gland - Google Patents

A kind of centrifugal pump with water-cooled pump cover and sealing gland Download PDF

Info

Publication number
CN208845370U
CN208845370U CN201821598985.2U CN201821598985U CN208845370U CN 208845370 U CN208845370 U CN 208845370U CN 201821598985 U CN201821598985 U CN 201821598985U CN 208845370 U CN208845370 U CN 208845370U
Authority
CN
China
Prior art keywords
pump cover
impeller
pump
bearing
housing
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 - Fee Related
Application number
CN201821598985.2U
Other languages
Chinese (zh)
Inventor
赵立盛
杜立安
苏清宵
张骏
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.)
Dalian Shuanglong Pump Group Co ltd
Original Assignee
DALIAN SONGLONE PUMP Manufacturing 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 DALIAN SONGLONE PUMP Manufacturing Co Ltd filed Critical DALIAN SONGLONE PUMP Manufacturing Co Ltd
Priority to CN201821598985.2U priority Critical patent/CN208845370U/en
Application granted granted Critical
Publication of CN208845370U publication Critical patent/CN208845370U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of centrifugal pump with water-cooled pump cover and sealing gland, it is characterized by: the centrifugal pump includes the pump housing, the pump housing is connected with pump cover, pump cover is then connected with bearing housing, rotational support has impeller shaft in bearing housing, one end of impeller shaft is located at outside bearing housing, the other end is then connected with impeller, and the impeller is located at the pump housing and pump cover is formed by cavity, on the shaft part for the impeller shaft being located in bearing housing, it is disposed with seal assembly, the single row angular contact ball bearing of single-row centripetal bearing and two positive and negative settings each other, the adjusting nut to match with described two single row angular contact ball bearings is also threaded in impeller shaft, and cooperated between the adjusting nut and impeller shaft using fine thread, the impeller is connected to the end of impeller shaft by impeller fastening nut and gasket, institute It states and is additionally provided with outside framework oil seal at the bearing gland of bearing housing two ends of the bearing hole.

Description

A kind of centrifugal pump with water-cooled pump cover and sealing gland
Technical field
The utility model relates to centrifugal pump field, especially a kind of centrifugal pump with water-cooled pump cover and sealing gland.
Background technique
In general, it when 120 DEG C of delivery temperature < of liquid medium, is not required to carry out Cooling Design at pump cover.If conveying One cooling jacket structure of special designing is just needed when the liquid of temperature >=120 DEG C, at pump cover.Previous pump cover Cooling Design are as follows: pump Axial seal is realized using surface groove O-ring between lid and bearing housing, radial seal is realized using radial groove O-ring, But it because decrement is big when O-ring radial seal, easily squeezes sealing ring bad, therefore poorly sealed situation occurs;Every dismounting Once just need replacing an O-ring, not only assembly difficulty, but also cost of idleness.
Meanwhile traditional centrifugal pump only considers cooling at pump cover, does not account for the cooling at sealing gland but, actually It cannot achieve sufficient coolant seal.
Summary of the invention
The utility model is to propose that a kind of structure is simple to solve above-mentioned deficiency present in the prior art, and design is skilful It is wonderful, pumping the centrifugal pump that cooling and sealing structure is both provided at this and at sealing gland.
The technical solution of the utility model is: a kind of centrifugal pump with water-cooled pump cover and sealing gland, special Sign is: the centrifugal pump includes the pump housing 1, and the pump housing 1 is connected with pump cover 2, and pump cover 2 is then connected with bearing housing 3, in bearing housing 3 Interior rotational support has impeller shaft 4, and one end of impeller shaft 4 is located at outside bearing housing 3, and the other end is then connected with impeller 5, and described Impeller 5 is located at the pump housing 1 and pump cover 2 is formed by cavity, on the shaft part for the impeller shaft 4 being located in bearing housing 3, sets gradually There is the single row angular contact ball bearing 8 of seal assembly 6, single-row centripetal bearing 7 and two positive and negative settings each other, in impeller shaft 4 Also be threaded with described two single row angular contact ball bearings 8 match adjusting nut 9, and the adjusting nut 9 with Cooperated between impeller shaft 4 using fine thread, the impeller 5 is connected to impeller shaft by impeller fastening nut 10 and gasket 11 4 end is additionally provided with outside framework oil seal at the bearing gland 12 of 3 two ends of the bearing hole of bearing housing,
The first seal groove 13 and the second seal groove 14 are respectively arranged on the two sides of the pump cover 2, described first is close Sealing groove 13 is located at the large end face of pump cover 2, and the second seal groove 14 is then located at the small end face of pump cover 2, and first sealing Rubber o-ring is provided in slot 13 and the second seal groove 14, while first seal groove 13 and the second seal groove 14 has The common center of circle,
Also mutually it is furnished with sealing gland 15 with the pump cover 2, and the sealing gland 15 is located at pump cover 2 towards bearing housing 3 One end, the sealing gland 15 includes gland body 16, and the tail portion of gland body 16 is welded with end plate 17, gland body 16 and end plate 17 The collet chamber of cooling water is collectively formed, is also set up on the circumference of gland body 16 there are three interface 18, these three interfaces 18 are distinguished For flushing interface, cooling water inlet and cooling water outlet, and the interface 18 is connected with the collet chamber of cooling water.
The utility model compared with the existing technology, has the advantages that
The centrifugal pump with water-cooled pump cover and sealing gland of this kind of structure type, the two sides (bearing housing of pump cover Radial positioning hole is in positioning endface) be provided with the seal groove of twice axial direction, and using the O-ring of two rubber material come pair Pump cover collet chamber and bearing housing carry out the sealing of end face, to form closed cooling jacket;
Meanwhile the sealing gland part being connected with pump cover is also equipped with water-cooling structure, in the collet chamber in sealing gland It can be passed through cooling water, be used cooperatively with the cooling system of pump cover, cooling overall length is about that pump cover seal chamber bottom to rear road seals Stationary ring tail portion distance, film-cooled heat is larger, and the circulation face of sealing gland cooling water is located exactly at mechanical seal friction Around pair, the high temperature of sealed friction surface can be effectively quickly cooled down, the possibility of vaporization is eliminated, allows between sealing surface and protect Hold the liquid film of achievable good lubrication, to improve sealing service life.
At the same time, pump cover is cooling and sealing gland is cooling can play heat-insulated effect again, allow and pump intracorporal high temperature The heat of liquid can not pass to bearing housing, cool the lubricating oil in bearing bore indirectly, reduce the temperature of bearing, prolong The service life of bearing is grown.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of pump cover portion in the utility model embodiment.
Fig. 3 is the main view of sealing gland part in the utility model embodiment.
Fig. 4 is the side view of sealing gland part in the utility model embodiment.
Specific embodiment
Below in conjunction with Detailed description of the invention specific embodiment of the present utility model.It is as shown in Figure 1, Figure 2, Figure 3, Figure 4: a kind of Centrifugal pump with water-cooled pump cover and sealing gland, it includes the pump housing 1, and the pump housing 1 is connected with pump cover 2, pump cover 2 then with bearing housing 3 are connected, and rotational support has impeller shaft 4 in bearing housing 3, and one end of impeller shaft 4 is located at outside bearing housing 3, and the other end then connects There is impeller 5, and the impeller 5 is located at the pump housing 1 and pump cover 2 is formed by cavity, in the impeller shaft 4 being located in bearing housing 3 Shaft part on, be disposed with the single row angular contact ball of seal assembly 6, single-row centripetal bearing 7 and two positive and negative settings each other Bearing 8 is also threaded with the adjusting nut 9 to match with described two single row angular contact ball bearings 8 in impeller shaft 4, and Cooperated between the adjusting nut 9 and impeller shaft 4 using fine thread, the impeller 5 passes through impeller fastening nut 10 and close Packing 11 is connected to the end of impeller shaft 4, and skeleton oil is additionally provided at the bearing gland 12 of 3 two ends of the bearing hole of bearing housing Envelope,
The first seal groove 13 and the second seal groove 14 are respectively arranged on the two sides of the pump cover 2, described first is close Sealing groove 13 is located at the large end face of pump cover 2, and the second seal groove 14 is then located at the small end face of pump cover 2, and first sealing Rubber o-ring is provided in slot 13 and the second seal groove 14, while first seal groove 13 and the second seal groove 14 has The common center of circle,
Also mutually it is furnished with sealing gland 15 with the pump cover 2, and the sealing gland 15 is located at pump cover 2 towards bearing housing 3 One end, the sealing gland 15 includes gland body 16, and the tail portion of gland body 16 is welded with end plate 17, gland body 16 and end plate 17 The collet chamber of cooling water is collectively formed, is also set up on the circumference of gland body 16 there are three interface 18, these three interfaces 18 are distinguished For flushing interface, cooling water inlet and cooling water outlet, and the interface 18 is connected with the collet chamber of cooling water.
The utility model embodiment has the centrifugal pump of water-cooled pump cover and sealing gland at work, due to its pump cover 2 are provided with two seals slot (the first seal groove 13 and the second seal groove 14) at the positioning of bearing housing 3, and in seal groove It is provided with rubber o-ring, this structure is revised as axis while realizing end face seal, by traditional second radial seal To the design of sealing, to form closed cooling jacket;
Meanwhile the sealing gland part being connected with pump cover is also equipped with water-cooling structure, in the collet chamber in sealing gland It can be passed through cooling water, be used cooperatively with the cooling system of pump cover, cooling overall length is about that pump cover seal chamber bottom to rear road seals Stationary ring tail portion distance, film-cooled heat is larger, and the circulation face of sealing gland cooling water is located exactly at mechanical seal friction Around pair, the high temperature of sealed friction surface can be effectively quickly cooled down, the possibility of vaporization is eliminated, allows between sealing surface and protect Hold the liquid film of achievable good lubrication, to improve sealing service life.
In the collet chamber that gland body 16 and end plate 17 are collectively formed, cooling water low in and high out can be arranged intracavitary gas Out, while cooling water is also convenient for full of cavity;
The centrifugal pump with water-cooled pump cover and sealing gland of this kind of structure type, design is rationally, easy to assembly, close It is cooling to seal chamber overall length, film-cooled heat is big, in the occasion that pump cover need to cool down, makes by the combination that pump cover is cooling and sealing gland is cooling With, it plays a multiplier role, extends the service life of sealing, thus extend the cycle of oparation of equipment.

Claims (1)

1. a kind of centrifugal pump with water-cooled pump cover and sealing gland, it is characterised in that: the centrifugal pump includes the pump housing (1), the pump housing (1) is connected with pump cover (2), and pump cover (2) is then connected with bearing housing (3), and in bearing housing (3), interior rotational support has impeller Axis (4), one end of impeller shaft (4) are located at bearing housing (3) outside, and the other end is then connected with impeller (5), and the impeller (5) It is formed by cavity positioned at the pump housing (1) and pump cover (2), on the shaft part for the impeller shaft (4) being located in bearing housing (3), successively It is provided with the single row angular contact ball bearing (8) of seal assembly (6), single-row centripetal bearing (7) and two positive and negative settings each other, The adjusting nut (9) to match with described two single row angular contact ball bearings (8), and institute are also threaded in impeller shaft (4) Cooperated between the adjusting nut (9) stated and impeller shaft (4) using fine thread, the impeller (5) passes through impeller fastening nut (10) and gasket (11) is connected to the ends of impeller shaft (4), in the bearing gland (12) of the bearing housing (3) two ends of the bearing hole Place is additionally provided with outside framework oil seal,
It is respectively arranged with the first seal groove (13) and the second seal groove (14) on the two sides of the pump cover (2), described first Seal groove (13) is located at the large end face of pump cover (2), and the second seal groove (14) is then located at the small end face of pump cover (2), and institute It states and is provided with rubber o-ring in the first seal groove (13) and the second seal groove (14), while first seal groove (13) There is the common center of circle with the second seal groove (14),
Also mutually it are furnished with sealing gland (15) with the pump cover (2), and the sealing gland (15) is located at pump cover (2) towards bearing One end of case (3), the sealing gland (15) include gland body (16), and the tail portion of gland body (16) is welded with end plate (17), pressure The collet chamber of cooling water is collectively formed in lid (16) and end plate (17), also sets up that there are three interfaces on the circumference of gland body (16) (18), these three interfaces (18) are respectively flushing interface, cooling water inlet and cooling water outlet, and the interface (18) and cooling The collet chamber of water is connected.
CN201821598985.2U 2018-09-29 2018-09-29 A kind of centrifugal pump with water-cooled pump cover and sealing gland Expired - Fee Related CN208845370U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821598985.2U CN208845370U (en) 2018-09-29 2018-09-29 A kind of centrifugal pump with water-cooled pump cover and sealing gland

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821598985.2U CN208845370U (en) 2018-09-29 2018-09-29 A kind of centrifugal pump with water-cooled pump cover and sealing gland

Publications (1)

Publication Number Publication Date
CN208845370U true CN208845370U (en) 2019-05-10

Family

ID=66374796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821598985.2U Expired - Fee Related CN208845370U (en) 2018-09-29 2018-09-29 A kind of centrifugal pump with water-cooled pump cover and sealing gland

Country Status (1)

Country Link
CN (1) CN208845370U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113446320A (en) * 2020-03-24 2021-09-28 湖州博洛尼科技有限公司 Water-cooling sealed bearing box

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113446320A (en) * 2020-03-24 2021-09-28 湖州博洛尼科技有限公司 Water-cooling sealed bearing box

Similar Documents

Publication Publication Date Title
US2936715A (en) Seal assembly
JP2544799B2 (en) Centrifugal pump bearing device
CN202659520U (en) High temperature high pressure shield pump
CN208845370U (en) A kind of centrifugal pump with water-cooled pump cover and sealing gland
CN201934389U (en) Boracic acid conveying pump for nuclear power plant
CN110211712A (en) A kind of vertical mixed flow pump for lead bismuth reactor-loop
CN207377813U (en) Centrifugal pump and chemical industry equipment
CN104976133A (en) High temperature water pump of mechanical seal and vortex pump closed type self-circular system
CN106195278B (en) A kind of high speed air-cooler magnetic fluid seal device
KR101064152B1 (en) Screw type vacuum pump having direct cooling device
CN209228638U (en) A kind of horizontal single-stage cantilevered petrochemical process pump
CN110685921A (en) Cooling device used when vertical multistage centrifugal pump conveys high-temperature fluid
CN207554404U (en) A kind of bearing housing for pump drive
CN109372792A (en) Horizontal pump is lubricated from medium
CN205991014U (en) A kind of liquid rotary compressor
CN213125770U (en) Permanent magnet motor of bearing oil-cooled air compressor
CN106678052A (en) Mechanical seal type magnetic pump system
CN208380897U (en) A kind of latent liquid type pipeline type cryogenic pump suitable for high vacuum environment
CN209370085U (en) Centrifugal cryogenic liquid pump
CN208380890U (en) A kind of multiaction motor cooling and lubricating system for the distribution of commodities of centrifugal pump
CN202348682U (en) Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump
CN206522251U (en) A kind of Mechanical Sealed Type magnetic force pumping system
CN106763782B (en) A kind of buffer fluid flowage structure of mechanical seal
CN206860882U (en) A kind of buffer fluid flow path device structure of mechanical seal
CN205977697U (en) Chemical pump is supported at modified two -stage, chopped -off head double suction, radial subdivision, both ends

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: No. 218, Zhuoyue street, sanjianbao street, Lushunkou District, Dalian City, Liaoning Province, 116041

Patentee after: Dalian Shuanglong Pump Group Co.,Ltd.

Address before: No. 218, Zhuoyue street, sanjianbao street, Lushunkou District, Dalian City, Liaoning Province, 116041

Patentee before: DALIAN SONGLONG PUMP MADING Co.,Ltd.

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190510

Termination date: 20210929

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