CN205047499U - Forced circulation cooling high temperature mechanical seal - Google Patents
Forced circulation cooling high temperature mechanical seal Download PDFInfo
- Publication number
- CN205047499U CN205047499U CN201520799940.1U CN201520799940U CN205047499U CN 205047499 U CN205047499 U CN 205047499U CN 201520799940 U CN201520799940 U CN 201520799940U CN 205047499 U CN205047499 U CN 205047499U
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- China
- Prior art keywords
- ring
- gland
- temperature heat
- rotating ring
- circulation
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- Expired - Fee Related
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Abstract
The utility model discloses a forced circulation cooling high temperature mechanical seal, include the quiet ring, rotating ring, throw -out collar, spring, transmission seat. And the sealed axle sleeve that set gradually from a left side to the right side, it still closes the outside gland at quiet ring, rotating ring, throw -out collar, spring and transmission seat. Including enclosing, and the gland is provided with rapid cooling inlet opening and rapid cooling apopore, and the contact surface of gland and quiet ring still is provided with the cooling bath that communicates rapid cooling inlet opening and rapid cooling apopore, the gland still is provided with circulation inlet opening and circulation apopore, and the inside rotating ring outside that is located of gland is provided with low temperature heat transfer chamber, and the inside circulation wheel outside that is located of gland is provided with high temperature heat transfer chamber, leaves the liquid flow clearance between high temperature heat transfer chamber and the low temperature heat transfer chamber, circulation inlet opening and low temperature heat transfer chamber intercommunication, circulation apopore and high temperature heat transfer chamber intercommunication. The utility model discloses design into two regions of relatively independent high temperature and low temperature with the circulating water, the effectual operating temperature who reduces mechanical seal has strengthened the cooling effect.
Description
Technical field
The utility model relates to a kind of mechanical seal, belongs to mechanical seal field, relates to a kind of compulsory circulative cooling high temp. mechanical sealing in particular.
Background technique
Existing boiler feed water pump mechanical sealing generally adopts cemented carbide to match, the a large amount of frictional heat of extra generation under high temperature operating conditions, rotating ring and axle sleeve are made of one by existing mechanical seal simultaneously, floatability, modulability are poor, the problem producing main frame precise decreasing in vibration and running in pump operation can not be overcome, and the circulating water cooled through heat exchanger and high-temperature boiler circulating water are not effectively isolated by existing mechanical seal, cause mechanical seal cooling effect poor.
Model utility content
The utility model overcomes the deficiencies in the prior art, provides a kind of compulsory circulative cooling high temp. mechanical sealing, solves the problem that mechanical seal cooling effect and modulability are in the past poor.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
Compulsory circulative cooling high temp. mechanical sealing, comprise the stationary ring set gradually from left to right, rotating ring, throw-out collar, spring, retainer and sealing axle sleeve, described sealing axle sleeve is provided with positioning and guiding step, described retainer, spring and throw-out collar are all positioned on this positioning and guiding step, described rotating ring one end to be positioned on positioning and guiding step and to coordinate with throw-out collar, seal clearance is left in the cooperation place of described rotating ring and throw-out collar, be provided with the rotating ring the other end and stationary ring described in baffle ring and seal ring I in seal clearance to fit tightly, also circulation wheel is fixed with by Cock screw outside described retainer, retainer drives circulation wheel to rotate by Cock screw, described circulation wheel arranged outside has several blades, described retainer also drives rotating ring to rotate by driving pin, it also comprises and is enclosed in stationary ring, rotating ring, throw-out collar, the gland of spring and retainer outside, gland is provided with chilling water inlet and chilling osculum, described gland is also provided with the surface of contact of stationary ring the cooling bath being communicated with chilling water inlet and chilling osculum, described gland is also provided with circulation water inlet and recycles water hole, described gland inside is positioned at rotating ring arranged outside low-temperature heat exchange chamber, described gland inside is positioned at circulation wheel arranged outside high temperature heat exchanging chamber, liquid flow gap is left between described high temperature heat exchanging chamber and low-temperature heat exchange chamber, described circulation water inlet is communicated with low-temperature heat exchange chamber, the described water hole that recycles is communicated with high temperature heat exchanging chamber.
As first optimized project of the present utility model, described rotating ring adopts YWN8 cemented carbide to make, and described stationary ring adopts M106D graphite to make.
As second optimized project of the present utility model, described stationary ring is positioned at cooling bath both sides and is also provided with seal ring II.
As the 3rd optimized project of the present utility model, in described sealing axle sleeve, side through hole is provided with seal ring III.
As the 4th optimized project of the present utility model, described rotating ring end face outside is also provided with the collar clamped with retainer.Operationally, the spaced apart certain interval of described rotating ring and collar.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model is by appropriate design cooling water structure, circulating water is designed to relatively independent high temperature and low temperature two regions, effectively reduces the operating temperature of mechanical seal, strengthen cooling effect.
2, rotating ring and sealing axle sleeve are divided into two independently parts by the utility model, can reduce the vibration in pump operation, ensure the precision sealed in pump operation.
3, rotating ring of the present utility model and stationary ring adopt cemented carbide and graphite to make respectively, reduce the generation of the two frictional heat, reduce the heat that mechanical seal self produces, protect mechanical seal, also improve the cooling effect of mechanical seal simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model; In figure, arrow represents flow of cooling water direction;
Fig. 2 is the schematic enlarged-scale view at A place in Fig. 1;
Label in figure is expressed as: 1, sealing axle sleeve; 2, seal ring III; 3, retainer; 4, circulation wheel; 5, Cock screw; 6, sealing gasket; 7, spring; 8, water hole is recycled; 9, gland; 10, chilling osculum; 11, seal ring II; 12, stationary ring; 13, low-temperature heat exchange chamber; 14, collar; 15, rotating ring; 16, baffle ring; 17, high temperature heat exchanging chamber; 18, blade; 19, cooling bath; 20, seal ring I; 21, throw-out collar; 22, Cock screw; 23, chilling water inlet; 24, circulation water inlet; 25, driving pin; 26, seal clearance.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Mode of execution of the present utility model includes but not limited to the following example.
Embodiment 1
As Fig. 1, compulsory circulative cooling high temp. mechanical sealing shown in Fig. 2, comprise the stationary ring 12 set gradually from left to right, rotating ring 15, throw-out collar 21, spring 7, retainer 3 and sealing axle sleeve 1, described sealing axle sleeve 1 is provided with positioning and guiding step, described retainer 3, spring 7 and throw-out collar 21 are all positioned on this positioning and guiding step, described rotating ring 15 one end to be positioned on positioning and guiding step and to coordinate with throw-out collar 21, described rotating ring 15 leaves seal clearance 26 with the cooperation place of throw-out collar 21, baffle ring 16 and seal ring I 20 is provided with in seal clearance 26, described rotating ring 15 the other end and stationary ring 12 fit tightly, also circulation wheel 4 is fixed with by Cock screw 5 outside described retainer 3, retainer 3 drives circulation wheel 4 to rotate by Cock screw 5, described circulation wheel 4 arranged outside has several blades 18, described retainer 3 also drives rotating ring 15 to rotate by driving pin 25, it also comprises and is enclosed in stationary ring 12, rotating ring 15, throw-out collar 21, the gland 9 of spring 7 and retainer 3 outside, gland 9 is provided with chilling water inlet 23 and chilling osculum 10, described gland 9 is also provided with the surface of contact of stationary ring 12 cooling bath 19 being communicated with chilling water inlet 23 and chilling osculum 10, described gland 9 is also provided with circulation water inlet 24 and recycles water hole 8, described gland 9 inside is positioned at rotating ring 15 arranged outside low-temperature heat exchange chamber 13, described gland 9 inside is positioned at circulation wheel 4 arranged outside high temperature heat exchanging chamber 17, liquid flow gap is left between described low-temperature heat exchange chamber 13 and high temperature heat exchanging chamber 17, described circulation water inlet 24 is communicated with high temperature heat exchanging chamber 13, the described water hole 8 that recycles is communicated with low-temperature heat exchange chamber 17.
More excellent, described rotating ring 15 adopts YWN8 cemented carbide to make, and described stationary ring 12 adopts M10D graphite to make.
More excellent, the end face that described stationary ring 12 is positioned at cooling bath 19 both sides is also provided with seal ring II 11.
More excellent, in described sealing axle sleeve 1, side through hole is provided with seal ring III 2.
More excellent, described rotating ring 15 end face outside is also provided with the collar 14 clamped with retainer 3.
The present embodiment is arranged on the pump housing of boiler feed pump by gland 9 and fixing bolt when installing, the main shaft of boiler feed pump drive the sealing axle sleeve 1 be contained on axle to rotate by key, sealing axle sleeve 1 drives retainer 3 and circulation wheel 4 to rotate by Cock screw 22, retainer 3 to be coordinated with the cotter way of rotating ring 15 cylindrical by driving pin 25 and drives rotating ring 15 to rotate, stationary ring 12 adopts seal ring II 11 to play sealing and anti-rotation effect, spring 7 follows compensation sealing by throw-out collar 21 pairs of rotating rings 15, ensure the surface of contact laminating of rotating ring 15 and stationary ring 12 closely, baffle ring 16 can prevent seal ring I 20 under high pressure being affected rotating ring floating compensation by axially extruding.Several blades 18 of circulation wheel 4 Excircle machining, during circulation wheel 4 High Rotation Speed, boiler water in high temperature heat exchanging chamber 17 is derived by blade 18 powered rotation, cooled by external cooler, cooled cooling water enters low-temperature heat exchange chamber 13 by circulation water inlet 24, cools the sealing surface of mechanical seal.Meanwhile, the external chilled water (chw) in stationary ring 12 back enters cooling bath 19 pairs of stationary rings 12 by chilling water inlet and cools, then is discharged by chilled water (chw) osculum 10.
The rotating ring 15 of the present embodiment and the faying surface of stationary ring 12, seal ring I 20, seal ring II 11, seal ring III 2 and sealing gasket 6 are while playing sealing respectively, jointly constitute a complete sealing system, strengthen the sealing of mechanical seal entirety, ensure that mechanical seal seals completely, good sealing effect
The rotating ring 15 of the present embodiment adopts YWN8 cemented carbide to make, stationary ring 12 adopts M106D graphite to make, the frictional force that the two surface of contact produces is little, the frictional heat of corresponding generation diminishes, decrease the heat that mechanical seal oneself produces, make cooling water can the sealing surface of better cooling mechanical seal, and rotating ring 15 and stationary ring 12 more rub resistance, the latter two sealing surface of permanent use all can closely, completely be fitted, and reaches good sealing effect.
Rotating ring 15 and retainer 3, back-up ring 16, sealing seat 20, throw-out collar 21, spring seat 7 can fit together by the collar 14 of the present embodiment in advance; Thus ensure that the assembly precision of mechanical seal.
Be embodiment of the present utility model as mentioned above.The utility model is not limited to above-mentioned mode of execution, and anyone should learn the structural change made under enlightenment of the present utility model, and every have identical or close technological scheme with the utility model, all falls within protection domain of the present utility model.
Claims (5)
1. compulsory circulative cooling high temp. mechanical sealing, it is characterized in that: comprise the stationary ring (12) set gradually from left to right, rotating ring (15), throw-out collar (21), spring (7), retainer (3) and sealing axle sleeve (1), described sealing axle sleeve (1) is provided with positioning and guiding step, described retainer (3), spring (7) and throw-out collar (21) are all positioned on this positioning and guiding step, described rotating ring (15) one end to be positioned on positioning and guiding step and to coordinate with throw-out collar (21), described rotating ring (15) leaves seal clearance (26) with the cooperation place of throw-out collar (21), baffle ring (16) and seal ring I (20) is provided with in seal clearance (26), described rotating ring (15) the other end and stationary ring (12) fit tightly, described retainer (3) outside is also fixed with circulation wheel (4) by Cock screw (5), retainer (3) drives circulation wheel (4) to rotate by Cock screw (5), described circulation wheel (4) arranged outside has several blades (18), described retainer (3) also drives rotating ring (15) to rotate by driving pin (25), it also comprises and is enclosed in stationary ring (12), rotating ring (15), throw-out collar (21), the gland (9) of spring (7) and retainer (3) outside, gland (9) is provided with chilling water inlet (23) and chilling osculum (10), described gland (9) and the surface of contact of stationary ring (12) are also provided with the cooling bath (19) being communicated with chilling water inlet (23) and chilling osculum (10), described gland (9) is also provided with circulation water inlet (24) and recycles water hole (8), described gland (9) inside is positioned at rotating ring (15) arranged outside low-temperature heat exchange chamber (13), described gland (9) inside is positioned at circulation wheel (4) arranged outside high temperature heat exchanging chamber (17), liquid flow gap is left between described high temperature heat exchanging chamber (17) and low-temperature heat exchange chamber (13), described circulation water inlet (24) is communicated with low-temperature heat exchange chamber (13), the described water hole (8) that recycles is communicated with high temperature heat exchanging chamber (17).
2. compulsory circulative cooling high temp. mechanical sealing according to claim 1, is characterized in that: described rotating ring (15) adopts YWN8 cemented carbide to make, and described stationary ring (12) adopts M106D graphite to make.
3. compulsory circulative cooling high temp. mechanical sealing according to claim 1, is characterized in that: described stationary ring (12) is positioned at cooling bath (19) both sides and is also provided with seal ring II (11).
4. compulsory circulative cooling high temp. mechanical sealing according to claim 1, is characterized in that: described sealing axle sleeve (1) interior side through hole is provided with seal ring III (2).
5. compulsory circulative cooling high temp. mechanical sealing according to claim 1, is characterized in that: described rotating ring (15) end face outside is also provided with the collar (14) clamped with retainer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799940.1U CN205047499U (en) | 2015-10-17 | 2015-10-17 | Forced circulation cooling high temperature mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799940.1U CN205047499U (en) | 2015-10-17 | 2015-10-17 | Forced circulation cooling high temperature mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047499U true CN205047499U (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520799940.1U Expired - Fee Related CN205047499U (en) | 2015-10-17 | 2015-10-17 | Forced circulation cooling high temperature mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681437A (en) * | 2018-12-21 | 2019-04-26 | 吉首长潭泵业有限公司 | A kind of mortar pump using low hydraulic pressure circulating cooling axle envelope |
| CN109983263A (en) * | 2016-11-22 | 2019-07-05 | 株式会社华尔卡 | Construction practices device, Construction practices method, Construction practices system and the mechanical sealing member of mechanical sealing member |
-
2015
- 2015-10-17 CN CN201520799940.1U patent/CN205047499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109983263A (en) * | 2016-11-22 | 2019-07-05 | 株式会社华尔卡 | Construction practices device, Construction practices method, Construction practices system and the mechanical sealing member of mechanical sealing member |
| CN109681437A (en) * | 2018-12-21 | 2019-04-26 | 吉首长潭泵业有限公司 | A kind of mortar pump using low hydraulic pressure circulating cooling axle envelope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Xikai Inventor before: Tang Xinwei |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20211017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |