CN205745288U - A kind of movable sealing structure for gas-solid two phase materials - Google Patents
A kind of movable sealing structure for gas-solid two phase materials Download PDFInfo
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- CN205745288U CN205745288U CN201620703579.2U CN201620703579U CN205745288U CN 205745288 U CN205745288 U CN 205745288U CN 201620703579 U CN201620703579 U CN 201620703579U CN 205745288 U CN205745288 U CN 205745288U
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Abstract
The utility model discloses a kind of movable sealing structure for gas-solid two phase materials.The leakage of gas-solid two phase materials in equipment cavity in industrial process at present, is first that Gaseous materials leaks out, and then drives solid material to continue past external leakage, and solid-state material is under the drive of power transmission shaft, and abrasion can produce destruction to sealing structure.The technical solution adopted in the utility model is: described seal receptacle is on high-tension side is internally formed a strength blowback room, being provided with along the circumferentially disposed circumferential weld of power transmission shaft between this strength blowback room and equipment cavity, strength blowback room utilizes its interior compressed gas to be intended in the cavity that equipment is returned in the material blowback of leakage by circumferential weld；Described seal receptacle low-pressure side be internally formed an oil sump, fill grease or lubricating oil in oil sump, between seal receptacle and power transmission shaft, be provided with oil sealing, grease or lubricating oil in preventing oil sump leak out.This utility model can thoroughly solve the movable sealing problem of gas-solid two phase materials, easy to use, can be pressure, will not produce leakage.
Description
Technical field
This utility model relates to movable sealing field, a kind of for gas-solid two phase materials can pressure No leakage
Movable sealing structure.
Background technology
The machinery equipment used in process industrial is generally provided with sealing device, and bad sealing can cause leakage, leaks meeting
Cause damage of the waste of the energy, the loss of logistics, the pollution of environment, the decline of product quality, equipment etc., serious leakage
Accident can affect the healthy of personnel, even leads to fire, sets off an explosion, causes stopping production, bring huge personal safety with
Economic loss.
Most sealing device is directed to the sealing of liquid, gas material, for the sealing of liquid conventional have water pump,
Oil pump, valve etc., have gas compressor, valve etc. for what Gaseous materials sealed, and the kind of sealing has packing seal, machinery close
Envelope and non-contacting seal.In actual application, have the material that gas-solid two-phase is complicated, in such as coal dust pumping procedure, its material
It it is the material that mixes with gas of a kind of coal dust；In some coal dust disintegrating apparatus, also there will be and similar be required for gas-solid two-phase
The dynamic sealing device of material.The leakage of gas-solid two phase materials in equipment cavity, is first that Gaseous materials leaks out, then drives
Solid material continues toward external leakage, and solid material is under the drive of power transmission shaft, destroys because sealing structure can be produced by abrasion.
For the movable sealing of gas-solid two phase materials of this complexity, market lacking the technology of successful Application, current technology all can not
Solve this problem well.Install in " a kind of long-distance pulverized coal conveying equipment " of Patent No. ZL201010260361.1
The sealing structure of the coal powder spiral delivery pump below Pulverized Coal Bin, Patent No. 201310673846.7 " be applied to middle-size and small-size
The pulverized coal preparation system of industrial coal powder boiler " in raw coal is broken and sealing structure for pulverized coal conveying to the helix powder feeding machine of Pulverized Coal Bin
Deng.
Utility model content
Technical problem to be solved in the utility model is the defect overcoming above-mentioned prior art to exist, it is provided that one is used for
Gas-solid two phase materials can pressure No leakage movable sealing structure.
To this end, this utility model adopts the following technical scheme that: a kind of movable sealing structure for gas-solid two phase materials, bag
Including the power transmission shaft on the equipment of being arranged on and the seal receptacle being enclosed within power transmission shaft, one end of seal receptacle is that high-pressure side connects with equipment cavity
Connecing, directly contact the material sealed, the other end of seal receptacle is low-pressure side；Described power transmission shaft is arranged on the center of seal receptacle
Position, it is characterised in that
Described seal receptacle is on high-tension side is internally formed a strength blowback room, is provided with between this strength blowback room and equipment cavity
Along the circumferential weld that power transmission shaft is circumferentially disposed, strength blowback room utilizes its interior compressed gas to be intended to the material blowback of leakage by circumferential weld
In the cavity of the equipment of returning；
Described seal receptacle low-pressure side be internally formed an oil sump, fill grease or lubricating oil, seal receptacle and biography in oil sump
Being provided with oil sealing between moving axis, grease or lubricating oil in preventing oil sump leak out.
The movable sealing structure of the present utility model thing that material is caused by drive axis in the cavity of water-tight equipment
Material leakage.Gas-solid two phase materials in equipment first passes through circumferential weld and enters strength blowback room, in the drive of the compressed gas of blowback
Under, material is returned by blowback in the cavity of equipment again.
Oil sealing in oil sump under the protection of grease, can stop grease to External leakage well, thus play
The sealing function of effect；And use high voltage bearing oil sealing, higher pressure can be born, thereby ensure that anti-in strength blowback room
Blow compressed gas and there is not leakage in the outside of seal receptacle, it is ensured that purge gas is all blown in the cavity of equipment.
Further, forming a packing seal room between strength blowback room and oil sump in described seal receptacle, this is filled out
Filler filled by material closed chamber.A small amount of material is had to be also possible to enter at packing seal room by strength blowback room, now filler
Filler in closed chamber plays the effect that material leaks outward that again cuts off.
Further, it is positioned on the seal receptacle at packing seal room and has a replacement mouth, be provided with at this replacement mouth
One is connected to the sealing lid on seal receptacle outer wall.Filler is changed by replacement mouth.
Further, described filler comprises flexible filler.
Further, described seal receptacle arranges lubricating oil inlet, in filler, inject profit by lubricating oil inlet
Lubricating oil, makes to be formed between filler and power transmission shaft oil film, plays sealing function.
Further, described strength blowback room is provided with a compressed gas access port, and the compressed gas for blowback connects from this
Entrance enters.
Further, the structure of described circumferential weld can also have following two kinds of situations:
1) on the power transmission shaft described in, fixing connection one is positioned at the dynamic ring catch at gas outlet, strength blowback room, near equipment
A plurality of groove is formed on the dynamic ring catch of cavity side；A quiet ring catch it is provided with, this stationary ring shape in the housing of described equipment
Formed on block piece a plurality of with dynamic ring catch on the convex tendon that uses of groove fit, between quiet ring catch and power transmission shaft, groove
And forming described circumferential weld between convex tendon and between dynamic ring catch and seal receptacle, this circumferential weld is labyrinth shape.In seal failure
In the case of, the material flowed out in equipment cavity body is played and stops the effect slowed down by labyrinth shape circumferential weld, reduces the leakage of material.
2) on the power transmission shaft described in, fixing connection one collar stop, forms described ring between collar stop and seal receptacle
Seam, this circumferential weld is in folding shape.In the case of seal failure, the circumferential weld of folding shape also can play and stop the effect slowed down, and reduces material
Leakage.
Further, flange and bolt is used to be connected, between two flanges between end and the housing of equipment of described seal receptacle
It is provided with gasket seal.
In sealing structure of the present utility model, first protection is strength blowback room；Second protection is packing seal room,
A small amount of solid particle is also possible to enter packing seal room by strength blowback room, and now packing seal room is played and again cut off
Material is toward the effect of external leakage.Being filled with flexible filler etc. in packing seal room, and can fill lubricating oil, lubricating oil makes
Form one layer of oil film between filler and power transmission shaft, effectively stop gas-solid two phase materials to continue toward External leakage.
In sealing structure of the present utility model, the 3rd road protection is mounted in the group of the outermost oil sump of seal receptacle and oil sealing
Closing structure, this section of combinative structure is by grease and oil sealing collaborative work, it is ensured that even if also will not with the presence of high pressure in equipment
Produce leakage, in the structure design of whole sealing, be not have solid particle to let out during this oil sump and the combinative structure work of oil sealing
Drain in oil sump, be the most also not result in sealing structural damage.
In sealing structure of the present utility model, the 3rd road protection increases the pressure loss because there being above two roads to protect,
Alleviate the resistance to pressure request of oil sealing, also allow for sealing structure long-time stable work.
This utility model can thoroughly solve the movable sealing problem of gas-solid two phase materials, easy to use, can be pressure, will not produce
Raw leakage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2-3 is that (arrow in figure represents the stream of compressed gas for other two kinds of structural representations of this utility model circumferential weld
Dynamic direction).
Fig. 4 is the enlarged drawing in A portion in Fig. 2.
Fig. 5 is the structural representation of this utility model oil sump and oil sealing.
Fig. 6 is the structural representation of this utility model packing seal room.
In figure, 1-power transmission shaft, 2-seal receptacle, 3-oil sealing, 4-oil sump, 5-packing seal room, 6-strength blowback room, 7-seals
Lid, 8-circumferential weld, 9-compressed gas access port, 10-equipment, 11-filler, 12-collar stop, the quiet ring catch of 13-, 14-rotating ring
Shape block piece.
Detailed description of the invention
Embodiment of the present utility model is provided, to describe technical side of the present utility model in detail below in conjunction with Figure of description
Case.
The movable sealing structure of the coal powder spiral pump as shown in Fig. 1,4-5, in order to ensure pressure be 30kpa fineness be 200 mesh
The gas-solid two-phase material pressure of coal dust and air squeeze into Pulverized Coal Bin or burner by coal dust pump, whole process No leakage,
Pollution-free, the movable sealing structure of whole coal dust pump is made up of three road protection.
Movable sealing structure for gas-solid two phase materials installs power transmission shaft 1 on device 10, power transmission shaft 1 is cased with close
Envelope seat 2, power transmission shaft 1 is arranged on the center of seal receptacle 2, arranges one and be formed close to what equipment 10 cavity was arranged in seal receptacle 2
Strength blowback room 6, there is a compressed gas access port 9 strength blowback room 6, is formed along power transmission shaft between seal receptacle 2 and power transmission shaft 1
Circumferentially disposed circumferential weld 8.Strength blowback room 6 is utilized its interior compressed gas to be returned by the material blowback that circumferential weld 8 is intended to leak and sets
In the cavity of standby 10.
Being formed in described seal receptacle 2 and be positioned at the packing seal room 5 outside strength blowback room 6, this packing seal room 5 is filled
Filler 11.Be positioned on the seal receptacle 2 at packing seal room 5 and have replacement mouth, be provided with at this replacement mouth be connected to close
Sealing lid 7 on envelope seat outer wall.Described filler comprises flexible filler, and seal receptacle 2 arranges lubricating oil inlet, by lubrication
Oil inlet injects lubricating oil in filler 11, makes to be formed between filler 11 and power transmission shaft 1 oil film.
It is provided with one in described seal receptacle 2 and is positioned at the oil sump 4 outside packing seal room 5, in oil sump 4, fill grease or profit
Lubricating oil, is provided with oil sealing 3 between seal receptacle 2 and power transmission shaft 1, grease or lubricating oil in preventing oil sump 4 leak out.
Described circumferential weld can also use following structure: fixes connection on power transmission shaft and is positioned at gas outlet, strength blowback room 6
Dynamic ring catch 12, near equipment cavity side dynamic ring catch 14 on form a plurality of groove；In the housing of described equipment
Being provided with quiet ring catch 13, this quiet ring catch 13 is formed groove fit on a plurality of and dynamic ring catch 14 uses is convex
Muscle, forms circumferential weld between quiet ring catch 13 and power transmission shaft, between groove and convex tendon and between dynamic ring catch 14 and seal receptacle 2
8, this circumferential weld 8 is in labyrinth shape, as shown in Figure 2,4.
Described circumferential weld can also use following structure: fixes on described power transmission shaft and connects a collar stop 12, annular
Forming circumferential weld 8 between block 12 and seal receptacle, this circumferential weld 8 is in folding shape, as shown in Figure 3.
Use flange and bolt to be connected between end and the housing of equipment of described seal receptacle 2, be provided with close between two flanges
Gasket.
The above, be only preferred embodiment of the present utility model, not make any to structure of the present utility model
Pro forma restriction.Every according to technical spirit of the present utility model, above example is made any simple modification, equivalent
Change and modification, each fall within protection domain of the present utility model.
Claims (9)
1. for the movable sealing structure of gas-solid two phase materials, including the power transmission shaft (1) being arranged on equipment (10) be enclosed within
Seal receptacle (2) on power transmission shaft, one end of seal receptacle (2) is that high-pressure side is connected with equipment (10) cavity, and directly contact is sealed
Material, the other end of seal receptacle (2) is low-pressure side；Described power transmission shaft (1) is arranged on the center of seal receptacle (2), its
It is characterised by,
Described seal receptacle (2) is on high-tension side is internally formed a strength blowback room (6), this strength blowback room (6) and equipment (10) chamber
Being provided with between body along the circumferentially disposed circumferential weld (8) of power transmission shaft, strength blowback room (6) utilizes its interior compressed gas to pass through circumferential weld
(8) the material blowback being intended to leak is returned in the cavity of equipment (10)；
Described seal receptacle (2) low-pressure side be internally formed an oil sump (4), fill grease or lubricating oil, seal receptacle in oil sump (4)
(2) and between power transmission shaft (1), be provided with oil sealing (3), it is used for preventing the grease in oil sump (4) or lubricating oil from leaking out.
Movable sealing structure for gas-solid two phase materials the most according to claim 1, it is characterised in that described seal receptacle
(2) forming a packing seal room (5) being positioned between strength blowback room (6) and oil sump (4) in, this packing seal room (5) is filled
Filler (11).
Movable sealing structure for gas-solid two phase materials the most according to claim 2, it is characterised in that be positioned at packing seal
Have a replacement mouth on the seal receptacle (2) at room (5) place, be provided with one at this replacement mouth and be connected on seal receptacle outer wall
Seal lid (7).
Movable sealing structure for gas-solid two phase materials the most according to claim 2, it is characterised in that described filler bag
Containing flexible filler.
Movable sealing structure for gas-solid two phase materials the most according to claim 4, it is characterised in that described seal receptacle
(2) lubricating oil inlet is set on, in filler (11), injects lubricating oil by lubricating oil inlet, make filler (11) and transmission
Oil film is formed between axle (1).
6. according to the movable sealing structure for gas-solid two phase materials described in any one of claim 1-5, it is characterised in that described
Strength blowback room (6) be provided with a compressed gas access port (9).
7. according to the movable sealing structure for gas-solid two phase materials described in any one of claim 1-5, it is characterised in that described
Power transmission shaft on fixing connect one and be positioned at the dynamic ring catch (14) at strength blowback room (6) gas outlet, near equipment cavity one
The dynamic ring catch (14) of side is upper forms a plurality of groove；A quiet ring catch (13), this stationary ring it is provided with in the housing of described equipment
Shape block piece (13) above forms a plurality of convex tendon used with the groove fit on dynamic ring catch (14), quiet ring catch (13) and biography
Described circumferential weld (8), this ring is formed between moving axis, between groove and convex tendon and between dynamic ring catch (14) and seal receptacle (2)
Seam (8) is in labyrinth shape.
8. according to the movable sealing structure for gas-solid two phase materials described in any one of claim 1-5, it is characterised in that described
Power transmission shaft on fixing connect a collar stop (12), form described circumferential weld (8) between collar stop (12) and seal receptacle, should
Circumferential weld (8) is in folding shape.
9. according to the movable sealing structure for gas-solid two phase materials described in any one of claim 1-5, it is characterised in that described
Use flange and bolt to be connected between end and the housing of equipment of seal receptacle (2), between two flanges, be provided with gasket seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620703579.2U CN205745288U (en) | 2016-07-05 | 2016-07-05 | A kind of movable sealing structure for gas-solid two phase materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620703579.2U CN205745288U (en) | 2016-07-05 | 2016-07-05 | A kind of movable sealing structure for gas-solid two phase materials |
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| Publication Number | Publication Date |
|---|---|
| CN205745288U true CN205745288U (en) | 2016-11-30 |
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ID=57378712
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620703579.2U Active CN205745288U (en) | 2016-07-05 | 2016-07-05 | A kind of movable sealing structure for gas-solid two phase materials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972214A (en) * | 2016-07-05 | 2016-09-28 | 杭州全合科技有限公司 | Dynamic sealing structure for gas-solid two-phase materials |
| CN110793588A (en) * | 2019-11-19 | 2020-02-14 | 重庆前卫科技集团有限公司 | Direct drive set and method of assembling same |
-
2016
- 2016-07-05 CN CN201620703579.2U patent/CN205745288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972214A (en) * | 2016-07-05 | 2016-09-28 | 杭州全合科技有限公司 | Dynamic sealing structure for gas-solid two-phase materials |
| CN110793588A (en) * | 2019-11-19 | 2020-02-14 | 重庆前卫科技集团有限公司 | Direct drive set and method of assembling same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190311 Address after: 311815 Dingqiao Village, Ciwu Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Asroad Highway Construction & Maintenance Machinery Co., Ltd. Address before: 310004 Room 106, Building 4, Building 1, No. 5, Third Road, Genshan Branch, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Quanhe Technology Co., Ltd. |