CN108278369B - Single-circulation flow guide plate type double water-cooling butterfly valve - Google Patents
Single-circulation flow guide plate type double water-cooling butterfly valve Download PDFInfo
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- CN108278369B CN108278369B CN201810194982.0A CN201810194982A CN108278369B CN 108278369 B CN108278369 B CN 108278369B CN 201810194982 A CN201810194982 A CN 201810194982A CN 108278369 B CN108278369 B CN 108278369B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/224—Details of bearings for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2268—Sealing means for the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
- F16K27/102—Welded housings for lift-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a single-circulation guide plate type double-water-cooling butterfly valve, which comprises a valve body, a valve plate arranged in the valve body, an upper valve rod and a lower valve rod which are respectively arranged on the valve plate, wherein the valve plate is provided with a valve seat; the valve body is a welded valve body, a jacket fixed on the inner wall of the valve body is arranged in the inner cavity of the valve body, and a first cooling circulation system is formed by a cavity between the jacket and the valve body; the valve body is provided with two water inlets and two water outlets, and a baffle plate for separating the two water inlets and the two water outlets to enable the first cooling circulation system to form a single circulation cooling path is arranged between the two water inlets and the two water outlets. The condition that the whole circle of flange is a leakage point in split connection can be completely avoided by adopting the integrally welded valve body, so that the valve body is ensured to have no leakage; through setting up first cooling circulation system in the valve body, set up the second cooling circulation system in the valve plate, make two water-cooling circulation route exist alone, mutually noninterfere, but the cooling function is mutually supported complementarily, makes the valve carry out the heat exchange fast when high temperature medium passes through, reaches quick refrigerated effect.
Description
Technical Field
The invention relates to a single-circulation guide plate type double water-cooling butterfly valve.
Background
Most water-cooled butterfly valves are valve plates and the inner cavities of valve bodies are cooled by water, the structures are approximately the same, and in order to consider convenient maintenance, the valve bodies are in split structures. The valve belongs to a pressure vessel, and firstly, the safety of the valve, particularly the specificity of a high-temperature medium, must be considered, and the safety in the use process is the most important technical index. The two-half split structure of the valve body adopts flange connection, and the periphery of the flange connection is a leakage point, so that the valve is easy to leak due to the fact that the water-cooling butterfly valve is used for working condition occasions with medium temperature above 700 ℃, and great potential safety hazards exist. In addition, because the design of the internal flow guiding structure of the valve plate is not scientific, cooling water cannot circulate according to an ideal route, the valve plate can deform due to uneven heat exchange with a medium, and in a long term, materials work at a limiting temperature, internal leakage and external leakage are easy to occur, the sealing performance of the valve is poor, and the service life and the stability are not satisfactory. Therefore, the leakage point of the water-cooling butterfly valve is reduced, the circulation route of cooling water is controlled, a good thermal circulation system is provided, the service life and the safety of the valve are improved, and the valve is developed by operators.
In addition, some water-cooling butterfly valves are designed for working conditions such as high-temperature flue gas in the petrochemical industry field in the market at present, the valve body adopts a two-half split structure, and is sealed through flange bolt connection, and metal winding gaskets are easy to detach during maintenance, but because the specificity of working conditions, the medium temperature is more than 700 ℃, leakage points exist on the whole circumference of two flange joints, and materials can deform more or less due to long-term working at high temperature, so that the valve is easy to leak. In addition, the valve plate and the valve body water cooling device are simple cavities, no ideal flow guide structure exists, cooling water directly enters from the valve body or the water inlet pipe of the valve plate and directly flows out from the other direction, the circulation flow path of the cooling water in the valve plate cannot be well controlled, certain parts of the valve inner cavity cannot be effectively circulated due to the cooling water, heat exchange of all parts of the valve inner cavity is uneven, heat exchange between the cooling water and a high-temperature medium is not large, and the heat exchange effect is affected. The valve plate is easier to deform due to uneven heating, and has certain use limitation. Severely affecting the service effect and valve life.
Disclosure of Invention
The invention aims to provide a single-circulation flow guide plate type double-water-cooling butterfly valve, which can improve the cooling effect of the water-cooling butterfly valve, ensure that cold cut water circulates in a valve plate and a valve body inner cavity according to a specified runner, quickly and uniformly take away heat of a high-temperature medium, avoid a great deal of deformation caused by uneven heating of the valve inner cavity, ensure tightness and prolong the service life and safety performance of the valve.
In order to solve the technical problems, the invention provides a single-circulation guide plate type double-water-cooling butterfly valve, which comprises a valve body, a valve plate arranged in the valve body, and an upper valve rod and a lower valve rod respectively arranged on the valve plate; the valve body is a welded valve body; a jacket fixed on the inner wall of the valve body is arranged in the inner cavity of the valve body, and a first cooling circulation system is formed by a cavity between the jacket and the valve body; the valve body is provided with two water inlets and water outlets, a baffle is arranged in a jacket between the two water inlets and water outlets, and the baffle is used for separating the two water inlets and water outlets so that the first cooling circulation system forms a single circulation cooling path.
Further, the upper valve rod, the lower valve rod and the valve plate are all of hollow structures, and inner cavities of the upper valve rod, the lower valve rod and the valve plate are sequentially communicated to form a second cooling circulation system.
Further, a first folded single-circulation guide plate and a second folded single-circulation guide plate are arranged in the inner cavity of the valve plate, and the first folded single-circulation guide plate and the second folded single-circulation guide plate are used for blocking the inner cavity of the valve plate to form an S-shaped single-circulation cooling path.
Further, the first folded single-circulation guide plate is fixed in the inner cavity of the valve plate and comprises a first plate body A, a second plate body A and a third plate body A; the first plate body A and the second plate body A are arranged in parallel with the valve rod, and the second plate body A is connected between the first plate body A and the third plate body A and is obliquely arranged towards one end of the lower valve rod; one end of the first plate body A, which is far away from the second plate body A, is fixed on the upper valve rod, and one end of the third plate body A, which is far away from the second plate body A, is a free end; the second folded single-circulation guide plate is fixed in the inner cavity of the valve plate and comprises a first plate body B, a second plate body B and a third plate body B; the first plate body B and the second plate body B are both arranged in parallel with the valve rod, and the second plate body B is connected between the first plate body B and the third plate body B and is obliquely arranged towards one end of the upper valve rod; one end of the first plate body B, which is far away from the second plate body B, is fixed on the upper valve rod, and one end of the third plate body B, which is far away from the second plate body B, is a free end; the communication hole between the lower valve rod and the inner cavity of the valve plate is arranged at one side of the first folded single-cycle guide plate, which is close to the space between the valve body walls; the communication hole between the upper valve rod and the inner cavity of the valve plate is arranged at one side of the second folded single-circulation guide plate, which is close to the space between the valve body walls.
Further, an included angle formed between the second plate body A and the first plate body A as well as between the second plate body A and the third plate body A is 100-150 degrees; the included angle formed between the second plate body B and the first plate body B and between the second plate body B and the third plate body B is 100-150 degrees.
Further, the upper valve rod and the lower valve rod are respectively fixed on the valve body through valve rod mounting seats, combined packing locked between the upper valve rod and the lower valve rod and between the upper valve rod and the valve rod mounting seats through packing gland is arranged, one end, facing the outer side of the valve body, of the valve rod mounting seat is fixed with a packing gland mounting seat, and one end, extending out of the valve rod mounting seat, of the packing gland is fixed on the packing gland mounting seat through a sixth fastening piece.
Further, one ends of the upper valve rod and the lower valve rod extending into the valve plate are fixed on the valve plate through a fifth fastener.
Further, the fifth fastening piece adopts a cylindrical pin, and the cylindrical pin is fixed with the center of the upper valve rod and the center of the lower valve rod in an offset manner.
The beneficial effects of the invention are as follows: the condition that the whole circle of flange is a leakage point in split type connection can be completely avoided by adopting the valve body with the whole welding type, and the valve body is ensured to have no leakage. Through setting up first cooling circulation system in the valve body, set up the second cooling circulation system in the valve plate, make two water-cooling circulation route exist alone, mutually noninterfere, but the cooling function is mutually supported complementarily, makes the valve carry out the heat exchange fast when high temperature medium passes through, reaches quick refrigerated effect.
Drawings
The accompanying drawings, where like reference numerals refer to identical or similar parts throughout the several views and which are included to provide a further understanding of the present application, are included to illustrate and explain illustrative examples of the present application and do not constitute a limitation on the present application. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
wherein: 1. a water inlet and outlet pipe; 2. a lower bearing cap; 3. a first fastener; 4. a lower bearing; 5. a lower bearing seat; 6. a second fastener; 7. a lower valve rod; 8. a jacket; 9. a baffle; 10. a water inlet and a water outlet; 11. a valve plate; 12. a first folded single circulation baffle; 121. a second folded single circulation deflector; 13. an upper valve rod; 14. a valve body; 17. a packing gland; 18. an upper bearing seat; 19. a key; 20. connecting sleeves; 21. a third fastener; 23. an upper bearing cap; 24. a fourth fastener; 25. an upper bearing; 26. a packing pressing plate; 27. a combined packing 28, a fifth fastener; 29. a combined filler; 30. and a fifth fastener.
Detailed Description
The single-circulation flow guide plate type double water-cooling butterfly valve shown in fig. 1 comprises a valve body 14, a valve plate 11 arranged in the valve body 14, and an upper valve rod 13 and a lower valve rod 7 respectively arranged on the valve plate 11. The valve body 14 is a welded valve body 14, and the integral welded valve body 14 completely avoids the condition that the whole circle of flange is a leakage point in split connection, so that the valve body 14 is ensured to have no leakage. Compared with the split valve body 14 structure, the integral valve body 14 is more uniformly heated, and a large amount of deformation can not be generated due to nonuniform heat transfer; the split valve body 14 may have non-uniform heating and inconsistent deformation of the two connecting parts of the valve body 14, and the deformation of the valve body 14 is larger due to the action force of the bolts, so that the connecting part is easy to leak out due to the time lapse, and a great potential safety hazard exists, so that the use advantage of the integral valve body 14 is particularly obvious in terms of the working condition.
The inner cavity of the valve body 14 is provided with a jacket 8 fixed on the inner wall of the valve body 14, the jacket 8 is welded with the inner wall of the valve body 14, and a cavity between the jacket 8 and the valve body 14 forms a first cooling circulation system; the valve body 14 is provided with two water inlets and outlets 10, a baffle plate 9 is arranged in the jacket 8 between the two water inlets and outlets 10, and the baffle plate 9 is used for separating the two water inlets and outlets 10 so that the first cooling circulation system forms a single circulation cooling path. Cooling water enters the jacket 8 from one water inlet and outlet 10, and as the baffle 9 is arranged in the jacket 8, the cooling water can only flow unidirectionally around the jacket 8 in the arrow direction shown in fig. 1, and finally is discharged through the other water inlet and outlet 10, and heat exchange is rapidly and uniformly carried out on the cooling water and the high-temperature medium in the valve body 14 in the circulating flow process, so that the effect of rapid cooling is achieved, and all parts of the valve body 14 are protected to work under a lower-temperature working condition for a long time. The two water inlets and outlets 10 can be used interchangeably and can be reasonably selected according to the site cooling water source position.
The upper valve rod 13, the lower valve rod 7 and the valve plate 11 are all hollow structures, and the inner cavities of the upper valve rod 13, the lower valve rod 7 and the valve plate 11 are sequentially communicated to form a second cooling circulation system. And, a first folded single circulation deflector 12 and a second folded single circulation deflector 121 are disposed in the inner cavity of the valve plate 11, and the first folded single circulation deflector 12 and the second folded single circulation deflector 121 are used for blocking the inner cavity of the valve plate 11 to form an S-shaped single circulation cooling path. One end of the lower valve rod 7 extending out of the valve body 14 is connected with a water inlet and outlet pipe 1 in a split way with one end of the upper valve rod 13 extending out of the valve body 14.
If the cooling water flows in from the water inlet and outlet pipe 1 connected with the lower valve rod 7, the cooling water enters the inner cavity of the valve plate 11 through the inner hole of the lower valve rod 7, then flows along the arrow direction in figure 1 in an S-shaped route through the partition and guide of the first folded single circulation guide plate 12 and the second folded single circulation guide plate 121, and then is connected and discharged from the water inlet and outlet pipe 1 communicated with the upper valve rod 13 through the inner hole of the upper valve rod 13. The heat in the high-temperature medium is continuously taken away in the circulation process of the cooling water, and the cooling effect reaches the optimal state when the cooling water and the cooling circulation system in the inner cavity of the valve body 14 are matched for use. Similarly, the water inlet and outlet pipe 1 connected with the lower valve rod 7 and the water inlet and outlet 10 of the water inlet and outlet pipe 1 communicated with the upper valve rod 13 can be used interchangeably, and a water cooling circulation system is reasonably designed according to the on-site pipeline arrangement condition and the water source position.
The first folded single-circulation guide plate 12 is fixed in the inner cavity of the valve plate 11 and comprises a first plate body A, a second plate body A and a third plate body A; the first plate body A and the second plate body A are both arranged in parallel with the valve rod, and the second plate body A is connected between the first plate body A and the third plate body A and is obliquely arranged towards one end of the lower valve rod 7; one end of the first plate body A, which is far away from the second plate body A, is fixed on the upper valve rod 13, and one end of the third plate body A, which is far away from the second plate body A, is a free end; the second folded single-circulation deflector 121 is fixed in the inner cavity of the valve plate 11, and comprises a first plate body B, a second plate body B and a third plate body B; the first plate body B and the second plate body B are both arranged in parallel with the valve rod, and the second plate body B is connected between the first plate body B and the third plate body B and is obliquely arranged towards one end of the upper valve rod 13; one end of the first plate body B, which is far away from the second plate body B, is fixed on the lower valve rod 7, and one end of the third plate body B, which is far away from the second plate body B, is a free end; the communication hole between the lower valve rod 7 and the inner cavity of the valve plate 11 is arranged at one side of the first folded single-circulation deflector 12, which is close to the wall of the valve body 14; the communication hole between the upper valve rod 13 and the inner cavity of the valve plate 11 is arranged at one side of the second folded single circulation baffle 121, which is close to the wall of the valve body 14. The included angle formed between the second plate body A and the first plate body A as well as between the second plate body A and the third plate body A is 100-150 degrees; the included angle formed between the second plate body B and the first plate body B and between the second plate body B and the third plate body B is 100-150 degrees.
The first folded single-circulation baffle 12 and the second folded single-circulation baffle 121 are novel baffle structures optimally designed according to the existing water-cooled butterfly valve, and the folded single-circulation baffle is folded and welded in the inner cavity of the valve plate 11 to partition the valve plate 11 into three parts, so that the fluid path of the valve plate 11 is in an S shape. The structure ensures that cold cutting water in the double water-cooling butterfly valve flows through the circulating route, no matter which direction cold cutting water enters the inner cavity of the valve plate 11, the cold cutting water can flow through the double water-cooling butterfly valve according to the S-shaped route, so that the inner cavity of the whole valve plate 11 is filled with circulating cooling water at the same time. The structure increases the heat exchange coefficient of the inner cavity of the valve plate 11, can ensure uniform heat exchange inside the valve, and has the effect of rapid cooling; meanwhile, the valve inner cavity is prevented from being heated unevenly to generate a large amount of deformation, the structural components of each part of the valve are guaranteed to work within the allowable temperature range of the material of the valve for a long time, the filling part of the valve cannot lose efficacy due to overhigh temperature, the probability of internal leakage or external leakage is reduced, and the sealing performance and the service life of the valve are guaranteed.
The upper valve rod 13 and the lower valve rod 7 are respectively fixed on the valve body 14 through valve rod mounting seats, combined fillers (27, 39) locked between the upper valve rod 13 and the lower valve rod 7 and the valve rod mounting seats through packing covers (17, 26) are respectively arranged between the upper valve rod 13 and the lower valve rod 7, one end of the valve rod mounting seat, which faces the outer side of the valve body 14, is fixed with a packing cover mounting seat, and one end, extending out of the valve rod mounting seat, of the packing covers (17, 26) is fixed on the packing cover mounting seat through a sixth fastener 30.
One end of the upper valve rod 13 and one end of the lower valve rod 7 extending into the valve plate 11 are fixed on the valve plate 11 through a fifth fastening piece 28, the valve is opened and closed by an actuator to transmit torque to the upper valve rod 13, the upper valve rod 13 is connected with the valve plate 11 through a cylindrical pin to drive the valve plate 11 to open or close, and the valve rod must be of a through hole structure to provide a cooling path due to the structural specificity of the double water cooling butterfly valve. The valve adopts the semi-axis to connect, in order to guarantee better transmissibility and the stability in the transmission process, this application adopts the drift pin transmission structure, and the fifth fastener 28 adopts cylindric lock, cylindric lock and upper and lower valve rod 7 central skew certain distance, makes cylindric lock and upper and lower valve rod 7's area of contact bigger, and transmission performance obtains improving, opens equally or closes valve plate 11, and the moment of torsion value that provides for the valve rod reduces, and the executor can reduce, has reduced manufacturing cost, and valve plate 11 opens or closes in addition and can be more rapid. In addition, as the contact area and the length of the cylindrical pin and the valve rod are increased, the stability of torque transmission in the valve movement process is improved.
The one end of the lower valve rod 7 extending out of the valve body 14 is provided with a lower bearing seat 5, a lower bearing 4 is arranged in the lower bearing seat 5, the lower bearing 4 is fixed in the lower bearing seat 5 through a lower bearing cover 2, and a first fastening piece 3 (such as a bolt) through which the lower bearing cover 2 passes is fixed on the lower bearing seat 5. An upper bearing seat 18 is arranged at one end of the upper valve rod 13 extending out of the valve body 14, an upper bearing 25 is arranged in the upper bearing seat 18, the upper bearing 25 is fixed in the upper bearing seat 18 through an upper bearing cover 23, and the upper bearing cover 23 is fixed on the upper bearing seat 18 through a fourth fastening piece 24. In addition, a connecting sleeve 20 is arranged at the end part of one end of the upper valve rod 13 extending out of the valve body 14, and a key 19 is arranged between the connecting sleeve 20 and the upper valve rod 13.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (8)
1. A single-circulation flow guide plate type double-water-cooling butterfly valve comprises a valve body, a valve plate arranged in the valve body, an upper valve rod and a lower valve rod respectively arranged on the valve plate; the valve is characterized in that the valve body is a welded valve body; a jacket fixed on the inner wall of the valve body is arranged in the inner cavity of the valve body, and a first cooling circulation system is formed by a cavity between the jacket and the valve body; the valve body is provided with two water inlets and water outlets, a baffle is arranged in a jacket between the two water inlets and water outlets, and the baffle is used for separating the two water inlets and water outlets so that the first cooling circulation system forms a single circulation cooling path;
the inner cavities of the upper valve rod, the lower valve rod and the valve plate are sequentially communicated to form a second cooling circulation system; the upper valve rod and the lower valve rod are respectively fixed on the valve body through valve rod mounting seats.
2. The single circulation baffle type double water cooling butterfly valve of claim 1, wherein a first folded single circulation baffle and a second folded single circulation baffle are arranged in the inner cavity of the valve plate, and the first folded single circulation baffle and the second folded single circulation baffle are used for blocking the inner cavity of the valve plate to form an S-shaped single circulation cooling path.
3. The single-circulation diversion plate type double-water-cooling butterfly valve of claim 2, wherein the first folded single-circulation diversion plate is fixed in an inner cavity of the valve plate and comprises a first plate body A, a second plate body A and a third plate body A; the first plate body A and the second plate body A are arranged in parallel with the valve rod, and the second plate body A is connected between the first plate body A and the third plate body A and is obliquely arranged towards one end of the lower valve rod; one end of the first plate body A, which is far away from the second plate body A, is fixed on the upper valve rod, and one end of the third plate body A, which is far away from the second plate body A, is a free end; the second folded single-circulation guide plate is fixed in the inner cavity of the valve plate and comprises a first plate body B, a second plate body B and a third plate body B; the first plate body B and the second plate body B are both arranged in parallel with the valve rod, and the second plate body B is connected between the first plate body B and the third plate body B and is obliquely arranged towards one end of the upper valve rod; one end of the first plate body B, which is far away from the second plate body B, is fixed on the upper valve rod, and one end of the third plate body B, which is far away from the second plate body B, is a free end; the communication hole between the lower valve rod and the inner cavity of the valve plate is arranged at one side of the first folded single-cycle guide plate, which is close to the space between the valve body walls; the communication hole between the upper valve rod and the inner cavity of the valve plate is arranged at one side of the second folded single-circulation guide plate, which is close to the space between the valve body walls.
4. The single-circulation diversion plate type double-water-cooling butterfly valve of claim 3, wherein an included angle formed between the second plate body A and the first plate body A and the third plate body A is 100-150 degrees; the included angle formed between the second plate body B and the first plate body B and between the second plate body B and the third plate body B is 100-150 degrees.
5. The single-circulation flow guide plate type double-water-cooling butterfly valve according to claim 1, wherein combined packing locked between the upper valve rod and the lower valve rod and the valve rod mounting seat through packing covers is arranged between the upper valve rod and the lower valve rod, one end, facing the outer side of the valve body, of the valve rod mounting seat is fixed with a packing cover mounting seat, and one end, extending out of the valve rod mounting seat, of the packing cover is fixed on the packing cover mounting seat through a sixth fastening piece.
6. The single-cycle baffle-type double water-cooled butterfly valve of claim 5, wherein the ends of the upper and lower valve stems extending into the valve plate are secured to the valve plate by a fifth fastener.
7. The single-cycle deflector-type double water-cooled butterfly valve of claim 6, wherein the valve stem mount is fixedly connected to the valve body by welding.
8. The single-cycle baffle-type double water-cooled butterfly valve of claim 6, wherein the fifth fastener employs a cylindrical pin that is offset fixed from the center of the upper stem and the center of the lower stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194982.0A CN108278369B (en) | 2018-03-09 | 2018-03-09 | Single-circulation flow guide plate type double water-cooling butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194982.0A CN108278369B (en) | 2018-03-09 | 2018-03-09 | Single-circulation flow guide plate type double water-cooling butterfly valve |
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| CN108278369B true CN108278369B (en) | 2024-03-12 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716550B (en) * | 2018-07-27 | 2024-03-01 | 沈阳乐贝真空技术有限公司 | Novel vacuum isolation door valve |
| CN109027267B (en) * | 2018-08-22 | 2020-07-31 | 江西昌西环保设备有限公司 | Shaft locking prevention device for cremation smoke exhaust system |
| CN112032317B (en) * | 2020-07-21 | 2022-04-22 | 北京航天石化技术装备工程有限公司 | Jacket type cam deflection regulating valve |
| CN111911941A (en) * | 2020-08-07 | 2020-11-10 | 华夏碧水环保科技有限公司 | Comprehensive utilization system for waste gas treatment heat energy |
| CN112361070A (en) * | 2020-11-25 | 2021-02-12 | 浙江石化阀门有限公司 | Cooling structure of quick-opening high-temperature spherical sealing cut-off valve |
| CN115388182A (en) * | 2022-09-13 | 2022-11-25 | 重庆南坪自动化仪表厂有限公司 | A water-cooled butterfly valve |
| CN118775581B (en) * | 2024-09-03 | 2024-12-06 | 缔德阀门集团有限公司 | A high temperature fluid transport ball valve |
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| JP2004132190A (en) * | 2002-10-08 | 2004-04-30 | Ebara Corp | Pump with guide vane in combination use as valve |
| CN201420867Y (en) * | 2008-12-29 | 2010-03-10 | 杭州展德软件技术有限公司 | Single wing distribution plate |
| CN102252101A (en) * | 2010-05-21 | 2011-11-23 | 辽宁凯隆阀门有限公司 | Wedge type butterfly valve |
| CN202338676U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Breather valve for gear box |
| CN203717961U (en) * | 2013-12-25 | 2014-07-16 | 秦皇岛中青冶金阀门有限公司 | Novel water-cooled high-temperature regulation butterfly valve |
| CN207975266U (en) * | 2018-03-09 | 2018-10-16 | 重庆川仪调节阀有限公司 | Double water cooling butterfly valves |
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| JP2004132190A (en) * | 2002-10-08 | 2004-04-30 | Ebara Corp | Pump with guide vane in combination use as valve |
| CN201420867Y (en) * | 2008-12-29 | 2010-03-10 | 杭州展德软件技术有限公司 | Single wing distribution plate |
| CN102252101A (en) * | 2010-05-21 | 2011-11-23 | 辽宁凯隆阀门有限公司 | Wedge type butterfly valve |
| CN202338676U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | Breather valve for gear box |
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| CN207975266U (en) * | 2018-03-09 | 2018-10-16 | 重庆川仪调节阀有限公司 | Double water cooling butterfly valves |
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| CN108278369A (en) | 2018-07-13 |
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