CN206522464U - It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve - Google Patents
It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve Download PDFInfo
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- CN206522464U CN206522464U CN201720207803.3U CN201720207803U CN206522464U CN 206522464 U CN206522464 U CN 206522464U CN 201720207803 U CN201720207803 U CN 201720207803U CN 206522464 U CN206522464 U CN 206522464U
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- coking
- coal slurry
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Abstract
It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, including flange, valve body, bonnet, vavle shelf, valve rod, valve stem seal set, flashboard, valve seat, valve stem seal gland, gate valve Kai He mechanisms, wherein, valve body coordinates with bonnet to be enclosed to form valve-rod cavity in valve, valve body is in the recessed formation valve road chamber of its bottom centre, valve, oil product bet valve of the valve body lower portion provided with outlet insertion valve road chamber are noted on oil product provided with outlet insertion valve-rod cavity in bonnet top.The utility model on wedge-shaped single flashboard valve by adding oil product injection valve, injection is difficult coking and does not influence the high pressure oil product of technique and product quality, oil/coal slurry medium of the wedge-shaped easy coking of single flashboard valve intracavitary is replaced online, reach and eliminate coking conditions, wash away clearing valve road dregs, prevent coking in valve, be allowed to switch purpose that is smooth, closing reliable, extension time between overhauls(TBO) and service life, valve mechanism is simple and practical, easy-to-operate, great application value.
Description
Technical field
The utility model is related to a kind of wedge-shaped single flashboard valve, especially a kind of to prevent the special wedge of oil/coal slurry of coking in valve
Shape single flashboard valve.
Background technology
Slurry oil, coal slurry are the intermediate products in the petrochemical industry such as catalytic cracking, catalytic pyrolysis, carbonization of coal and coalification production process
Or product, belong to heavy oil category.
Slurry oil in petrochemical industry be coal slurry in the mixture of many component heavy oil, asphalitine and colloid etc., coal chemical industry and
Process heavy oil is then the mixing oil plant of high-carbon and high granule content.In production process, slurry oil and coal slurry easily decarburization coking.Oil/
The carbonization coking particulate matter mixed in coal slurry, can the inner-walls of duct flowed through and irregular low flow velocity position precipitation, it is attached
And assemble, hard coke button is formed in metal surface, and continue to aggravate coking on this basis, stop that slurry smoothly flows through.
If coking occurs in the movable joint of valve, valve road and valve rod case, can directly result in valve can not normally-open or pass
Close.
Oil/coal slurry medium system is when there is local leakage or system equipment pipe fitting needs repairing, it is necessary to pass through
Valve reliably cuts off flow, discharged after its internal oil/coal slurry medium temperature is dropped under self-ignition point, could be repaired
Condition.Therefore, it is the safe basic guarantee of oil/coal slurry system that valve, which is reliably closed,.
Because the property of oil/coal slurry is special so that oil/coal slurry system in petrochemical industry or coal chemical industry production
Valve all has two quasi-representatives：One be valve element and valve seat by oil/coal slurry medium erosive wear, between valve element and valve seat
Seal failure；Two be catalyst deposit or coking in valve body, hinders valve core movement, causes valve to close resistance and increases or close
It is not tight.
In view of the above-mentioned problems, prior art provides some corresponding solutions, wherein, the wear-resistant aspect of valve has China
" Special valve for pump mouth of oil slurry pump " that patent CN202152727U is proposed, technical points are：On the slurry oil conduit wall of valve seat, valve seat
With all coated with hard alloy-layer on the contact surface of flashboard, on the contact surface of flashboard and valve seat；Chinese patent CN200952484Y is carried
" high-temperature wear-resisting oil-mud pump valve " gone out, technical points are：Recess increase lining, the valve of valve body in the middle of body cavity and flashboard
Equal pile-up welding hard alloy, is improved the abrasion resistance properties of valve on sealing surface between seat and flashboard, increases the anti-of valve
Erosion；Chinese patent CN204226699U then provides " a kind of Wedge Gate Valves with blowing mechanism "；It is similar clear by purging
Manage sealing surface between valve seat and flashboard, reduce the technology of valve opening and closing resistance also including Chinese patent CN2795576Y propositions
" unloading grey deslagging ball valve ", Chinese patent that " gate valve with blow down valve ", Chinese patent CN203926884U are proposed
" a kind of coal chemical industry is used with purging, the lock slag of flusher, lock hopper valve " that CN202867909U is proposed etc..
Above technology by spraying, built-up welding high strength alloy material or set up wear resistance lining come strengthen valve resist fluid
Medium erosive wear ability, or introduce external high pressure water, steam or gas to purge valve internal from the fixed interface of valve body
In the presence of the material for hindering valve part to move, or the grey amylaceous substance deposited in valve is given off from valve body interface, these technologies should
With having certain effect on the valve in common slurry or dust medium system really, still, for the special stone of character
Change and still had some deficits with oil/coal slurry medium in coal chemical industry, above-mentioned technology, particularly compressed gas, steam and water under high pressure etc. are equal
To forbid the material being blown into oil/coal slurry, so, by introducing above-mentioned material purge the technology of cleaning can not apply；
There is very strong decarburization coking tendency within the temperature range of being additionally, since oil/coal slurry in process of production, that is, participate in chemistry anti-
The slurry answered easily is carbonized coking, and the burnt matter caking of hard strong adhesive force can be formed in valve interior surface, therefore only to valve inner sealing surface
It is purged to produce little effect.
Utility model content
To solve drawbacks described above of the prior art, it is special that the utility model provides a kind of oil/coal slurry for preventing coking in valve
Wedge-shaped single flashboard valve is used, by adding oil product injection valve on wedge-shaped single flashboard valve, is injected not into wedge-shaped single flashboard valve with this
Easy coking does not influence the high pressure oil product of technique and product quality again, and oil/coal slurry of the wedge-shaped easy coking of single flashboard valve intracavitary is situated between
Matter is replaced online, reach elimination coking conditions, wash away clearing valve road dregs, prevent coking in valve, switch it is smooth, close can
Lean on, extend the purpose of valve time between overhauls(TBO) and service life.
For up to above-mentioned purpose, the utility model is adopted the following technical scheme that：
It is this to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, including flange, valve body, bonnet, vavle shelf, valve
Bar, valve stem seal set, flashboard, valve seat, valve stem seal gland, gate valve Kai He mechanisms, the valve body coordinate in valve with the bonnet
Inside enclose to form valve-rod cavity, the valve body is in the recessed formation valve road chamber of its bottom centre, it is characterised in that：The bonnet top is set
Have and valve is noted on the oil product in outlet insertion valve-rod cavity, oil product bet valve of the valve body lower portion provided with outlet insertion valve road intracavitary.
Preferably, valve is noted on the oil product to be had 2~8 and is symmetrically distributed on bonnet.
Preferably, the oil product bet valve has 1~4 and is sequentially distributed on the valve body of valve road chamber bottom.
Note valve is any one in hand control valve, motor-operated control valve, pneumatic control valve, hydraulic control valve on the oil product
Kind.
The oil product bet valve is any one in hand control valve, motor-operated control valve, pneumatic control valve, hydraulic control valve
Kind.
The gate valve Kai He mechanisms are any one in handwheel, YE, pneumatic actuator, hydraulic actuator.
Compared with prior art, the utility model its advantage and marked improvement are：
1) the utility model is on the wedge-shaped single flashboard valve of usually used oil/coal slurry by adding oil product injection valve, can be with
Into wedge-shaped single flashboard valve, injection is difficult coking and does not influence the high pressure oil product of technique and product quality indicator, to wedge-shaped single lock
The oil of the easy coking of plate valve intracavitary/coal slurry medium is replaced online, reach elimination coking conditions, wash away clearing valve road dregs,
Prevent the purpose that coking in valve, switch are smooth, close reliable, extension valve time between overhauls(TBO) and service life.
2) the utility model is simple in construction, simple to operate, it is only necessary on the wedge-shaped single flashboard valve of existing oil/coal slurry slightly
Transformation, the operation that pre- anti-coking oil product is injected into wedge-shaped single flashboard valve by oil product injection valve, which can reach, prevents coking in valve
Purpose, be not only easy in production application realize, and safe and reliable, practical, great application value.
Brief description of the drawings
Fig. 1 faces knot for a kind of special wedge-shaped single flashboard valve of oil/coal slurry for preventing coking in valve that the utility model is provided
Structure schematic diagram；
Fig. 2 a kind of prevents the special wedge-shaped single flashboard valve side view knot of oil/coal slurry of coking in valve for what the utility model was provided
Structure schematic diagram；
Fig. 3 overlooks knot for a kind of special wedge-shaped single flashboard valve of oil/coal slurry for preventing coking in valve that the utility model is provided
Structure schematic diagram；
When Fig. 4 opens for the special wedge-shaped single flashboard valve of a kind of oil/coal slurry for preventing coking in valve that the utility model is provided
Internal structure schematic diagram；
When Fig. 5 closes for the special wedge-shaped single flashboard valve of a kind of oil/coal slurry for preventing coking in valve that the utility model is provided
Internal structure schematic diagram；
In figure：
1- flanges, 2- valve bodies, 3- bonnets, 4- vavle shelves, 5- valve rods, 6- valve stem seal sets, 7- flashboards, 8- valve seats, 9- valve rods
Valve, 12- oil products bet valve, A- valve-rod cavities, B- valve road chambers are noted on sealing gland, 10- gate valve Kai He mechanisms, 11- oil products.
Embodiment
Below, with reference to accompanying drawing and brief description of the drawings and embodiment, coking in valve is prevented to one kind that the utility model is provided
The technical scheme of the special wedge-shaped single flashboard valve of oil/coal slurry be described in further details.
Embodiment
A kind of special wedge-shaped single flashboard valve of oil/coal slurry for preventing coking in valve provided such as the utility model of Fig. 1~3 is just
A kind of the special wedge of oil/coal slurry of coking in valve is prevented depending on what the utility model of, side view, overlooking the structure diagram and Fig. 4~5 was provided
Shown in internal structure schematic diagram when shape single flashboard valve is opened, closed：
It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, including flange 1, valve body 2, bonnet 3, vavle shelf
4th, valve rod 5, valve stem seal set 6, flashboard 7, valve seat 8, valve stem seal gland 9, gate valve Kai He mechanisms 10, wherein, valve body 2 and bonnet
3 cooperations enclose to form valve-rod cavity A in valve, and valve body 2 is in the recessed formation valve road chamber B of its bottom centre, and the top of bonnet 3 is provided with outlet
Insert and valve 11 is noted on the oil product in valve-rod cavity A, the bottom of valve body 2 is provided with the oil product bet valve 12 in outlet insertion valve road chamber B.
Valve 11 is noted on oil product can have 2~8 and be symmetrically distributed on bonnet 3, and noting valve 11 in the present embodiment, on oil product has
2, skew symmetry is distributed in the front and rear sides that on bonnet 3 and outlet is located at flashboard 7 respectively.
Oil product bet valve 12 can have 1~4 and be sequentially distributed on the valve body 2 of valve road chamber B bottoms, in the present embodiment,
Oil product bet valve 12 is on 1, the valve body 2 for being arranged on valve road chamber B lower centrals.
It can be hand control valve, motor-operated control valve, pneumatic control valve, hydraulic pressure that valve 11 and oil product bet valve 12 are noted on oil product
Any one in control valve, notes valve 11 in the present embodiment, on oil product and oil product bet valve 12 all uses hand control valve.
Gate valve Kai He mechanisms 10 can be any one in handwheel, YE, pneumatic actuator, hydraulic actuator
Kind, in the present embodiment, gate valve Kai He mechanisms 10 are handwheel.
The utility model eliminates the special wedge-shaped single flashboard valve coking conditions of oil/coal slurry, washes away dregs in cleaning valve road, prevents
Coking in valve, reaches what the purpose for switching reliable smooth, closing, extension valve time between overhauls(TBO) and service life was realized in：
First, by the utility model by way of flange is connected or is welded, by the special wedge-shaped single disc of the oil/coal slurry
The valve body of valve is connected with oil/coal slurry pipe material in stone/coal chemical industry production on relevant apparatus, in the present embodiment, is employed
Flange 1 is connected；
Then, it will export and insert note valve 11 and the oil product bet valve in outlet insertion valve road chamber B on the oil product in valve-rod cavity A
12 entrance is connected with external injection oil product pipeline respectively, or will both suction lines it is in parallel after again with external injection oil product pipe
Line is connected, and completes the connection of injection oil product pipeline；
When the utility model is in opening, as shown in figure 4, flashboard 7 is hung in valve-rod cavity A through the dragging of valve rod 5,
Valve is opened, and oil/coal slurry can pass through wedge-shaped single flashboard valve；Now, the oil in valve-rod cavity A/coal slurry medium is in relative
Oil/coal slurry medium in inactive state, valve road chamber B is also at geo-stationary or slow flow state；Because oil/coal slurry is in phase
To decarburization coking easily occurs under static or low flow velocity, therefore, it will be periodically difficult by noting valve 11 and oil product bet valve 12 on oil product
The oil product of coking is injected into valve-rod cavity A and valve road chamber B, the easy coking oil/coal slurry being detained in valve-rod cavity A and valve road chamber B
Medium is squeezed into crossing in flow medium in valve and flowed out, so as to eliminate the coking conditions in valve-rod cavity A and valve road chamber B；
When the utility model is closed, falls into valve seat 8, block as shown in figure 5, flashboard 7 is promoted through valve rod 5
Flow through oil/coal slurry medium of valve；Now, valve-rod cavity A and valve road chamber B form the cavity of closing, and slurry therein is in
Inactive state；Oil/coal slurry, which remains static easily, occurs progressively decarburization coking；Therefore, eve is closed to valve in valve
Door was completely closed in this period, and the oil product for being difficult coking is injected into valve rod by note valve 11 on oil product and oil product bet valve 12
In chamber A and valve road chamber B, easy coking oil/coal slurry medium therein is squeezed into crossing in flow medium in valve and flowed out, valve is closed
Full of the additional oil product for being difficult coking in valve-rod cavity A and valve road chamber B after closing, the coking bar of wedge-shaped single flashboard valve just can be eliminated
Part；In the process, the outside oil product for being difficult coking is injected to valve road chamber B by oil product bet valve 12, moreover it is possible to play cleaning valve
The effect in road, is conducive to flashboard 7 to be fully contemplated in valve seat 8, realizes reliable close.
In summary：The utility model on the wedge-shaped single flashboard valve of oil/coal slurry by adding oil product injection valve, to wedge-shaped list
Injection is difficult coking and does not influence the high pressure oil product of technique and product quality indicator in slide valve, to wedge-shaped single flashboard valve intracavitary
Oil/coal slurry medium of easy coking is replaced online, is reached elimination coking conditions, is washed away clearing valve road dregs, prevents in valve
Coking, the purpose for being allowed to switch reliable smooth, closing, extension valve time between overhauls(TBO) and service life；The utility model is not only tied
Structure is simple and convenient to operate, safe and reliable and practical, great application value.
Finally, it is necessary to which explanation is：The above is only used for help and understands the technical solution of the utility model, it is impossible to manage
Solve as the limitation to the utility model protection domain；Those skilled in the art according to the above of the present utility model make it is non-
Essential modifications and adaptations, belong to the protection domain required by the utility model.
Claims (6)
- Prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve 1. a kind of, including flange (1), valve body (2), bonnet (3), Vavle shelf (4), valve rod (5), valve stem seal set (6), flashboard (7), valve seat (8), valve stem seal gland (9), gate valve Kai He mechanisms (10), the valve body (2) coordinates with the bonnet (3) and encloses to form valve-rod cavity (A) in valve, and the valve body (2) is in its bottom Central dip formation valve road chamber (B), it is characterised in that：Bonnet (3) top is provided with the oil product in outlet insertion valve-rod cavity (A) Upper note valve (11), valve body (2) bottom is provided with the oil product bet valve (12) in outlet insertion valve road chamber (B).
- 2. a kind of as claimed in claim 1 prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, it is characterised in that： Valve (11) is noted on the oil product to be had 2~8 and is symmetrically distributed on bonnet (3).
- 3. a kind of as claimed in claim 1 prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, it is characterised in that： The oil product bet valve (12) has 1~4 and is sequentially distributed on the valve body (2) of valve road chamber (B) bottom.
- 4. a kind of as claimed in claim 1 prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, it is characterised in that： It is any one in hand control valve, motor-operated control valve, pneumatic control valve, hydraulic control valve that valve (11) is noted on the oil product.
- 5. a kind of as claimed in claim 1 prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, it is characterised in that： The oil product bet valve (12) is any one in hand control valve, motor-operated control valve, pneumatic control valve, hydraulic control valve.
- 6. a kind of as claimed in claim 1 prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve, it is characterised in that： The gate valve Kai He mechanisms (10) are any one in handwheel, YE, pneumatic actuator, hydraulic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207803.3U CN206522464U (en) | 2017-03-06 | 2017-03-06 | It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720207803.3U CN206522464U (en) | 2017-03-06 | 2017-03-06 | It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522464U true CN206522464U (en) | 2017-09-26 |
Family
ID=59902224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720207803.3U Active CN206522464U (en) | 2017-03-06 | 2017-03-06 | It is a kind of to prevent the special wedge-shaped single flashboard valve of oil/coal slurry of coking in valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522464U (en) |
-
2017
- 2017-03-06 CN CN201720207803.3U patent/CN206522464U/en active Active
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