Hydraulic sub-control type split gate valve

Abstract

The utility model discloses a hydraulic sub-control type split gate valve which comprises a valve body which is of a frame structure and comprises a discharging pipe located in the center of the valve body and two valve plate waiting areas located on the two sides of the discharging pipe respectively. A supporting pipe is arranged in the center of the interior of the discharging pipe in the radial direction, a baffle is fixedly arranged below the supporting pipe, and two guide grooves are formed in the inner wall of the discharging pipe in the direction facing the valve plate waiting area. Valve plates in one-to-one correspondence with the guide grooves are clamped in the two valve plate waiting areas, the arrangement positions of the two valve plates are matched with the horizontal directions of the corresponding guide grooves respectively, and the two valve plates can freely move in the guide grooves by being connected with a reciprocating power mechanism; and the two valve plates can be opened and closed at the same time or any valve plate can be opened and closed under the driving of the reciprocating power mechanism. According to the utility model, the gate valve can be opened unilaterally or bilaterally when the single-side or double-side blanking of the partition bin is realized, the actual blanking requirement is met, the occupied space is smaller, and different working condition sites can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of separating bin coal bunker anti -blocking, specifically relates to a hydraulic control formula split -gate valve. BACKGROUND

[0002] Due to the thermal power plant in order to adapt to the demand of flexible coal blending fast peak regulation, through setting the partition in the middle of coal bunker, make the bunker become the form of separating bin, one side into high -quality coal, one side into inferior coal, use inferior coal to generate electricity usually, realize the diversification of coal material, when encountering power grid dispatching needs to reduce the power generation, in order to guarantee not to extinguish fire, combustion stability, when burning high -quality coal, open the valve of one side, burn inferior coal and open the valve of the other side, the separating bin not only can add different kinds of coal on both sides of the partition, realize the diversification of coal material, and in the production peak period, if one side bunker occurs congestion, the other bunker can realize normal work, can guarantee the normal production work of production peak period. The realization of the above function needs to rely on a new type of valve to realize, for example, if the bunker of one side does not occur congestion, can open the valve plate of the side to realize smooth discharge alone, or if need to use a kind of coal material, can open the valve plate of one side alone, do not need to open all valve plates, reduce the waste of resources.

[0003] But the existing split gate valve can only open or close simultaneously, cannot realize the single -sided opening or single -sided closure of separating bin, in addition, the existing split gate valve is controlled through electric push rod or hydraulic cylinder, but the electric push rod or hydraulic cylinder is arranged at the outside two ends of the split gate valve body, when using, the space is large, cannot completely apply to the space smaller site. UTILITY MODEL CONTENTS

[0004] To solve the above technical problem, the utility model aims at providing a hydraulic control formula split -gate valve, which can realize single -sided opening or double -sided opening of the split gate valve, meet the discharging demand of one side or both sides of the separating bin, and has smaller space occupation and can meet different working condition sites.

[0005] To achieve the above object, the utility model adopts the technical scheme of a hydraulic control formula split -gate valve, which comprises a valve body, the valve body is a frame structure, comprising a discharging pipe in the center of the valve body, two valve plate waiting areas respectively located on both sides of the discharging pipe, a supporting pipe is arranged radially in the center of the discharging pipe, a baffle is fixedly arranged below the supporting pipe, two guide grooves are arranged on the inner wall of the discharging pipe towards the valve plate waiting area direction.

[0006] Two valve plates are arranged in each of the valve plate waiting areas and correspond to the guide grooves; the two valve plates are arranged horizontally in the corresponding guide grooves; the two valve plates can move freely in the guide grooves through the connection of the reciprocating power mechanism.

[0007] Further, the reciprocating power mechanism comprises hydraulic stations arranged on the inner sides of the two ends of the valve body respectively and hydraulic cylinders arranged on the two sides of the valve plate waiting area and connected with the hydraulic stations; each hydraulic station is connected with two hydraulic cylinders, and the two hydraulic cylinders are connected with one valve plate; the extension and retraction of the hydraulic cylinders are controlled by the hydraulic stations to make the valve plates extend and retract in the guide grooves; the two hydraulic stations in the valve plate waiting area can work independently or simultaneously to meet the requirements of opening and closing or semi-opening and closing of the plug valve.

[0008] Two sealing plates are arranged above the valve plates in the valve plate waiting areas, and the hydraulic stations are arranged on the surfaces of the sealing plates.

[0009] The valve body is welded by a plurality of cross beams and longitudinal beams; the hydraulic cylinder extension rod is connected with the valve plate through an L-shaped plate; a long groove is arranged on the inner side of the longitudinal beam along the length direction to facilitate the L-shaped plate to pass through; and the L-shaped plate moves back and forth along the long groove during the extension and retraction of the valve plate.

[0010] The outer wall of the blanking pipe is tangent to the inner side of the longitudinal beam, so that the inner side of the longitudinal beam is prevented from being clamped by materials and the free movement of the valve plate is met.

[0011] A guide wheel is arranged on the surface of the valve plate and tangent to the inner side of the longitudinal beam; the guide wheel slides freely along the inner side of the longitudinal beam when the valve plate moves; and the long groove is arranged below the tangent position of the guide wheel and the inner side of the longitudinal beam.

[0012] A distal end limit switch and a proximal end limit switch are further arranged on the inner side of the longitudinal beam below the long groove; a limit rod is fixed on the bottom surface of the valve plate and has a length that can touch the distal end limit switch or the proximal end limit switch; when the plug valve needs to be opened, the valve plate moves to the valve plate waiting area, the limit rod touches the distal end limit switch, and the valve plate stops moving, indicating that the valve plate is retracted to the position; conversely, when the plug valve needs to be closed, the valve plate moves to the blanking pipe, the limit rod touches the proximal end limit switch, and the valve plate stops moving, indicating that the valve plate is extended to the position.

[0013] Each hydraulic station has the function of independently or simultaneously controlling the work of the two valve plates.

[0014] The plug-in valve provided by the utility model is in the retracted state when the hydraulic cylinder telescopic rod is closed, at this time, the two end valve plates are closed for the blanking pipe; when in use, if one side needs to be used, the hydraulic station on this side is started, the hydraulic cylinder telescopic rod on this side is extended, the valve plate from the valve plate waiting area is moved out alone, and the one side use is met; if both sides need to be used, the hydraulic stations on both sides are started, the hydraulic cylinder telescopic rods on both sides are extended, and the valve plates on both sides are moved out, and the production demand is met.

[0015] The utility model discloses the beneficial effect is: through setting up hydraulic station respectively on the surface of valve plate waiting area, the two hydraulic cylinders of driving valve plate are placed on the both sides of valve body frame structure, changes the design that the hydraulic station or electric push rod used under the transmission state is placed on the both ends of plug-in valve outside, and the new design reduces the length of valve body, can effectively save the production space, and it is convenient to adapt to the production of different working conditions, for such large valve, transportation installation and later maintenance will become convenient.

[0016] The utility model discloses the application of the separated warehouse, and the existing plug-in valve can only realize complete closure or complete opening, cannot realize single side opening or closure, the plug-in valve designed in the utility model can realize two valve plates separate opening and closure or complete opening and closure, so that the separated warehouse can freely select to open or close the valve plate on one side when plugging or when using other kinds of materials, realizes the flexible deployment of material, guarantees the continuity of production, in addition, the hydraulic station arranged at the both ends of the valve body can be used as backup for each other, when one side fails, only needs to switch the hydraulic pipeline and connects another side, so that the hydraulic station on another side can work normally.

[0017] The utility model sets up the baffle below the supporting pipe in the center of blanking pipe, can effectively prevent when one valve plate out of control, can resist the valve plate, also can avoid the phenomenon of two valve plates when two valve plates close simultaneously, and the two valve plates are dead.

[0018] The utility model sets up the guide wheel on the surface of valve plate, takes the inside surface of longitudinal beam as slide rail, in addition, the inside surface of longitudinal beam is tangent with the outer wall of blanking pipe, not only can ensure that the inside surface of longitudinal beam does not jam coal, and the guide wheel slides along the inside surface of longitudinal beam, can ensure that the valve plate does not deviate, and the resistance when reciprocating is small. ACCURACY OF DRAWINGS

[0019] The structure and features of the utility model will be further described below in combination with the drawings and examples.

[0020] Figure 1 It is the structure schematic diagram of the utility model.

[0021] Figure 2 It is Figure 1 It is the local section schematic diagram of A direction.

[0022] Figure 3 It isFigure 1 The structure diagram of the valve body surface seal plate and the hydraulic station.

[0023] Figure 4 The structure diagram of the valve body surface seal plate and the hydraulic station. Figure 1

[0024] Figure 5 The structure diagram of the valve body surface seal plate and the hydraulic station. Figure 4 The structure diagram of the valve body surface seal plate and the hydraulic station.

[0025] Figure 6 The structure diagram of the valve body surface seal plate and the hydraulic station. Figure 5 The structure diagram of the valve body surface seal plate and the hydraulic station.

[0026] The structure diagram of the valve body surface seal plate and the hydraulic station. Figures 1-6 Wherein, 1. Valve plate waiting area, 2. Guide groove, 3. Support pipe, 4. Downcomer, 5. Support table, 6. Hydraulic station, 7. Hydraulic cylinder, 8. Valve plate, 9. Bottom plate, 10. Long groove, 11. Baffle, 12. Longitudinal beam, 13. Cross beam, 14. Limiting rod, 15. Remote limit switch, 16. Near limit switch, 17. Seal plate, 18. L-shaped plate, 19. Guide wheel. DETAILED DESCRIPTION

[0027] The structure diagram of the valve body surface seal plate and the hydraulic station. Figures 1-6 It is an embodiment of the utility model, discloses a hydraulic control formula split plug valve, including a valve body, and the valve body is the frame structure, including the downcomer 4 in the valve body center, two valve plate waiting areas 1 in the downcomer 4 both sides respectively, namely the temporary storage area when valve plate is waiting to extend and close the valve or retract and open the valve, the downcomer 4 center is close to the top radially and is equipped with the support pipe 3, and the support pipe 3 helps the stability of whole downcomer 4, the baffle 11 is fixed below the support pipe 3, and the inner wall of downcomer 4 is equipped with two guide grooves 2 in the direction of valve plate waiting area 1, which facilitates the movement of valve plate.

[0028] Two valve plate waiting areas 1 are all equipped with valve plates 8 corresponding to guide grooves 2, and the two valve plates 8 are arranged at positions respectively matched with the horizontal directions of the respective guide grooves 2, and the two valve plates 8 can move freely in the guide grooves 2 by being connected with reciprocating power mechanisms; the two valve plates 8 can be opened or closed simultaneously or any one valve plate 8 can be opened or closed under the driving of the reciprocating power mechanisms, and the two valve plates 8 are close to the baffle 11 simultaneously or a single valve plate is close to the baffle 11 after being opened or closed in place.

[0029] ​The reciprocating power mechanism includes hydraulic stations 6 located on the inner sides near both ends of the valve body and hydraulic cylinders 7 located on both sides of the valve plate waiting area 1 and connected to the hydraulic stations 6 via hydraulic oil pipes. The two valve plate waiting areas 1 are also provided with sealing plates 17 above the valve plates 8, and the hydraulic stations 6 are located on the surface of the sealing plates 17. There are two hydraulic stations 6, each connected to two hydraulic cylinders 7. The two hydraulic cylinders 7 are connected to one valve plate 8 respectively. By controlling the extension and retraction of the extension rod of the hydraulic cylinders 7 through the hydraulic stations 6, the valve plates 8 can extend and retract along the inside of the guide groove 2. When in use, the two hydraulic stations 6 located in the valve plate waiting area can work independently or simultaneously to meet the requirements of opening and closing or half-opening of the slide valve 4.

[0030] Appendix Figures 4-6 The connection method between the hydraulic station and the hydraulic cylinder is not shown. Specifically, each hydraulic station 6 is equipped with multiple actuators, and each actuator is connected to a hydraulic cylinder 7. Both the actuator and the hydraulic cylinder 7 have two interfaces, which are connected through two hydraulic oil pipes. One hydraulic oil pipe is the inlet pipe, and the other is the return pipe. The two hydraulic stations 6 can serve as backups for each other. When one hydraulic station fails, it is only necessary to switch the hydraulic pipeline of that side to the other hydraulic station. The other hydraulic station is equipped with multiple actuators, which can fully meet the connection of the hydraulic oil pipes. Ultimately, the two valve plates can work normally even with a single hydraulic station.

[0031] The valve body is a frame structure, which is welded together by multiple cross beams 13 and longitudinal beams 12. The hydraulic cylinder 7 telescopic rod is connected to the valve plate 8 through an L-shaped plate 18. The inner side of the longitudinal beam 12 is provided with a long groove 10 along the length direction to facilitate the passage of the L-shaped plate 18. During the extension and retraction of the valve plate 8, the L-shaped plate 18 moves back and forth along the long groove 10.

[0032] The outer wall of the feed pipe 4 is tangent to the inner side of the longitudinal beam 12, so that the inner side of the longitudinal beam 12 is prevented from being jammed by materials, and the valve plate 8 is allowed to move freely. The valve plate 8 is provided with a support platform 5, which is used to support the guide wheel 19 which is tangent to the inner side of the longitudinal beam 12 in the valve plate waiting area 1. When the valve plate 8 moves, the guide wheel slides freely along the inner side of the longitudinal beam 12. The long groove 10 is located below the point where the guide wheel 19 is tangent to the inner side of the longitudinal beam 12.

[0033] The inside of the longitudinal beam 12 is further provided with a distal end limit switch 15 and a proximal end limit switch 16 below the long slot 10; the bottom surface of the valve plate 8 is fixedly provided with a limit rod 14, the limit rod 14 is extended to touch the distal end limit switch 15 or the proximal end limit switch 16; when the plug valve needs to be opened, the valve plate 8 moves to the valve plate waiting area 1, the limit rod 14 touches the distal end limit switch 15, and the valve plate 8 stops moving, indicating that the valve plate is retracted to the position, and vice versa, when the plug valve needs to be closed, the valve plate 8 moves to the direction of the downcomer 4, the limit rod 14 touches the proximal end limit switch 16, and the valve plate 8 stops moving, indicating that the valve plate is extended to the position.

[0034] In the plug valve, when the plug valve is closed, the hydraulic cylinder 7 telescopic rod is in the retracted state, at this time, the two end valve plates 8 are closed to the downcomer 4; when in use, when the separated bin needs to be used on one side, the hydraulic station 6 on the side is started, the hydraulic cylinder 7 telescopic rod on the side is extended, the valve plate 8 from the valve plate waiting area is moved alone, and the single side use is met; when the separated bin needs to be used on both sides, the two sides of the hydraulic station 6 are started, the two sides of the hydraulic cylinder telescopic rod 7 are extended, and the two sides of the valve plate 8 move to the respective valve plate waiting area 1 along the inside of the longitudinal beam 12 through the guide wheel, and the production demand is met.

Claims

1. A hydraulic split control opposed plug valve comprising a valve body, characterized in that: The valve body is a frame structure, comprising a blanking pipe in the center of the valve body, two valve plate waiting areas respectively on both sides of the blanking pipe, and a support pipe radially arranged at the center of the blanking pipe, a baffle fixedly arranged below the support pipe, and two guide grooves arranged on the inner wall of the blanking pipe towards the valve plate waiting areas; Two valve plates are respectively arranged in the two valve plate waiting areas and correspond to the guide grooves, the two valve plates are arranged at positions respectively matched with the horizontal directions of the corresponding guide grooves, and the two valve plates can freely move in the guide grooves through a reciprocating power mechanism; the two valve plates can be simultaneously opened or closed or any one of the valve plates can be opened or closed under the driving of the reciprocating power mechanism, and the two valve plates are simultaneously close to the baffle or only one valve plate is close to the baffle after being opened or closed.

2. The hydraulic split control opposed plug valve of claim 1, wherein: The reciprocating power mechanism comprises two hydraulic stations respectively arranged on the inner sides close to both ends of the valve body and two hydraulic cylinders respectively arranged on both sides of the valve plate waiting areas and connected with the hydraulic stations, the hydraulic stations are arranged in pairs, each hydraulic station is connected with two hydraulic cylinders, the two hydraulic cylinders are correspondingly connected with one valve plate, and the extension and retraction of the hydraulic cylinders are controlled by the hydraulic stations to make the valve plate extend and retract along the guide groove; the two hydraulic stations arranged in the valve plate waiting areas can be independently operated or simultaneously operated to meet the requirements of opening or semi-opening of the plug valve.

3. The hydraulic split control opposed plug valve of claim 2, wherein: Two sealing plates are further arranged above the valve plates in the valve plate waiting areas, and the hydraulic stations are arranged on the surfaces of the sealing plates.

4. The hydraulic split control opposed plug valve of claim 2, wherein: The valve body is welded by a plurality of cross beams and longitudinal beams; the hydraulic cylinder extension and retraction rod is connected with the valve plate through an L-shaped plate, a long groove is formed in the length direction of the inner side of the longitudinal beam to facilitate the L-shaped plate to pass through, and the L-shaped plate moves back and forth along the long groove during the extension and retraction of the valve plate.

5. The hydraulic control type split plug valve according to claim 4, characterized in that: The outer wall of the blanking pipe is tangent to the inner side of the longitudinal beam, so that the inner side of the longitudinal beam avoids being blocked by materials and meets the requirement of free movement of the valve plate.

6. The hydraulic split control opposed plug valve of claim 4, wherein: A guide wheel is arranged on the surface of the valve plate and is tangent to the inner side of the longitudinal beam, the guide wheel freely slides along the inner side of the longitudinal beam when the valve plate moves, and the long groove is arranged below the tangent position of the guide wheel and the inner side of the longitudinal beam.

7. The hydraulic split control opposed plug valve of claim 5, wherein: A distal end limit switch and a proximal end limit switch are further fixedly arranged below the long groove on the inner side of the longitudinal beam; a limit rod is fixedly arranged on the bottom surface of the valve plate, and the extension length of the limit rod meets the requirement of touching the distal end limit switch or the proximal end limit switch; when the plug valve needs to be opened, the valve plate moves towards the valve plate waiting area, the limit rod touches the distal end limit switch, and the valve plate stops moving, indicating that the valve plate is retracted to the position, and vice versa, when the plug valve needs to be closed, the valve plate moves towards the blanking pipe, the limit rod touches the proximal end limit switch, and the valve plate stops moving, indicating that the valve plate is extended to the position.

8. The hydraulic split control opposed plug valve as claimed in claim 2, wherein: Any hydraulic station has the function of independently or simultaneously controlling the operation of the two valve plates.

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