Switching valve structure special for high-temperature sintering

Abstract

The utility model discloses a special switching valve structure for high-temperature sintering, which comprises a main body mechanism, the main body mechanism comprises a gate valve shell, the outer wall of the gate valve shell is fixedly connected with a push rod seat, the outer wall of the push rod seat is fixedly connected with two supports at equal intervals, and the outer walls of the supports are fixedly connected with pipe clamps. An electric push rod is fixedly connected to the inner wall of the pipe clamp, a flashboard is fixedly connected to the movable end of the electric push rod, and a connector is fixedly connected to the outer wall of the movable end of the electric push rod; the water cooling mechanism comprises a flow groove formed in the gate plate, the movable end of the electric push rod is hollow, a connecting groove is formed in the position, corresponding to the movable end, of the top of the gate plate in a penetrating mode, and an interlayer is arranged on the inner wall of the gate valve shell. The problems that an existing switching valve special for high-temperature sintering is free of water cooling, free of water cooling design, prone to deformation when the temperature of a valve body is too high, free of sliding positioning design, poor in stability, incapable of achieving a 1400-DEG C high-temperature continuous test and prone to getting stuck are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of a special switching valve for high-temperature sintering, in particular to a special switching valve structure for high-temperature sintering. Background Art

[0002] The switching valve is a pneumatic switch valve installed at the hot end of the switching heat exchanger. The connecting rod structure principle is used to open and close the valve plate. The switch of the switching valve is controlled by the signal compressed air through the solenoid valve. According to the different roles in the process, there are air and dirty nitrogen switching valves, pure nitrogen suppression valves, dirty nitrogen three-way valves, etc. The high-temperature sintering switching valve is a regulating valve specially designed for high-temperature environments.

[0003] The existing high-temperature sintering special switching valve structure has no water cooling and no water cooling design. When the valve body temperature is too high, it is easy to deform. There is no positioning design for sliding, and the stability is poor. It is impossible to achieve 1400℃ high-temperature continuous testing and it is easy to get stuck. Utility Model Content

[0004] The purpose of the utility model is to provide a switching valve structure dedicated to high-temperature sintering to solve the problems raised in the above-mentioned background technology, that is, the existing switching valve structure dedicated to high-temperature sintering has no water cooling, no water cooling design, is easy to deform when the valve body temperature is too high, has no positioning design for sliding, has poor stability, cannot realize 1400℃ high-temperature continuous testing, and is easy to get stuck.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model is a special switching valve structure for high-temperature sintering, which comprises a main body mechanism, the main body mechanism comprises a gate valve housing, the outer wall of the gate valve housing is fixedly connected with a push rod seat, the outer wall of the push rod seat is equidistantly fixedly connected with two supports, the outer wall of the support is fixedly connected with a pipe clamp, the inner wall of the pipe clamp is fixedly connected with an electric push rod, the movable end of the electric push rod is fixedly connected with a gate plate, and the outer wall of the movable end of the electric push rod is fixedly connected with a joint;

[0007] The water cooling mechanism includes a flow groove opened in the gate plate, the movable end of the electric push rod is hollow and an input hole is opened on the outer wall, a connecting groove is opened through the corresponding movable end of the top of the gate plate, and a partition is opened on the inner wall of the gate valve housing.

[0008] Furthermore, the first insulation layer and the second insulation layer are symmetrically fixedly connected to the inner wall of the gate valve housing, a gasket is fixedly connected between the movable end of the electric push rod and the gate plate, sealing plates are symmetrically fixedly connected to the top of the gate valve housing, a driven shaft is slidably connected to the inner wall of the gland, and the driven shaft is fixedly connected to the gate plate;

[0009] Furthermore, a sealing ring is fixedly connected to the top of the sealing plate, a spacer is fixedly connected to the inner cavity of the sealing ring, four seamless pipes are fixedly connected to the top of the sealing plate at equal intervals around the circumference, a gland is fixedly connected to the top of the seamless pipe, a bearing seat is fixedly connected to the top of the gland, and a bearing is fixedly connected to the top of the bearing seat;

[0010] Furthermore, it also includes a shock absorbing mechanism, which includes a support frame fixedly connected to the bottom of the gate valve housing, a movable plate slidably connected to the inner wall of the support frame, the movable plate is fixedly connected to the outer wall of the gate valve housing, a damper is fixedly connected to the bottom of the movable plate and the inner wall of the support frame, and a shock absorbing spring is fixedly connected between the two dampers;

[0011] Furthermore, it also includes a fixing mechanism, the fixing mechanism includes a fixing frame fixedly connected to the outer wall of the inlet and outlet ends of the gate valve housing, the fixing frame is fixedly connected to the pipe to be connected, and the fixing frame penetrates and enters the inner cavity of the gate valve housing to open a mounting hole;

[0012] Furthermore, the inner cavity of the mounting hole is fixedly connected with a fixing cylinder, the inner wall of the fixing cylinder is threadedly connected with a rotating rack, the outer wall of the rotating rack is fixedly connected with a spring, the end of the spring is fixedly connected with a pushing rack, a limiting hole is provided at the end of the fixing cylinder, and a limiting ball is slidably connected with the inner wall of the limiting hole;

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. Input cooling water into the inner cavity of the active end through the input hole of the active end of the electric push rod, input cooling water into the flow groove in the gate plate through the connecting groove, and cool the gate plate by circulating cooling water in the gate plate. Open the sealing structure at the top of the interlayer, input cooling liquid into the interlayer, and the cooling liquid cools the inner cavity of the gate valve shell to ensure that the valve body temperature is not too high, reduce the efficiency of gate plate jamming, and realize high temperature test. The cavity structure will basically not deform. When the electric push rod drives the gate plate to move, the driven shaft is used to improve the accuracy of gate plate movement and the sealing of the valve body.

[0015] 2. Through the support frame, movable plate and shock-absorbing spring, when the whole device is in use, the fluid will exert external force on the valve body when passing through. The external force acts on the gate valve shell, driving the gate valve shell to vibrate. The gate valve shell drives the movable plate to move along the support frame. The movable plate moves up and down through the damper and shock-absorbing spring combination to provide shock-absorbing protection for the whole device, reduce the impact effect of external force on the valve body, and extend the service life of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model Figure 1 .

[0018] Figure 3 This is a cross-sectional view of the overall structure of the utility model Figure 2 .

[0019] Figure 4 It is a cross-sectional view of the fixing mechanism of the utility model.

[0020] Figure 5 It is a cross-sectional view of the shock absorbing mechanism of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Main body; 101. Gate; 102. Gasket; 103. Sealing plate; 104. Sealing ring; 105. Bearing; 106. Electric push rod; 107. Push rod seat; 108. First insulation layer; 109. Gate valve body; 110. Seamless pipe; 111. Pipe clamp; 112. Second insulation layer; 113. Spacer; 114. Pressure cover; 115. Bearing seat; 116. Joint; 117. Support; 2. Water cooling mechanism; 201. Flow slot; 202. Connecting slot; 203. Interlayer; 3. Shock-absorbing mechanism; 301. Support frame; 302. Movable plate; 303. Shock-absorbing spring; 4. Fixing mechanism; 401. Fixing frame; 402. Fixing cylinder; 403. Rotating frame; 404. Spring; 405. Pushing frame; 406. Limiting ball. DETAILED DESCRIPTION

[0023] See also Figure 1-5 As shown, this embodiment is a special switching valve structure for high-temperature sintering, including a main body mechanism 1, a water cooling mechanism 2, a shock absorbing mechanism 3, and a fixing mechanism 4. The main body mechanism 1 includes a gate valve housing 109, the outer wall of the gate valve housing 109 is fixedly connected to a push rod seat 107, the outer wall of the push rod seat 107 is equidistantly fixedly connected to two supports 117, the outer wall of the support 117 is fixedly connected to a pipe clamp 111, the inner wall of the pipe clamp 111 is fixedly connected to an electric push rod 106, the movable end of the electric push rod 106 is fixedly connected to a gate plate 101, and the outer wall of the movable end of the electric push rod 106 is fixedly connected to a joint 116;

[0024] The sealing plate 103 and the push rod seat 107 are supported by the gate valve housing 109, the support 117 and the pipe clamp 111 are supported by the push rod seat 107, the electric push rod 106 is supported by the pipe clamp 111, the gate plate 101 and the entire device are opened or closed by the electric push rod 106, and the electric push rod 106 and the movable end are connected by the joint 116;

[0025] The first insulation layer 108 and the second insulation layer 112 are symmetrically fixedly connected to the inner wall of the gate valve housing 109, a gasket 102 is fixedly connected between the movable end of the electric push rod 106 and the gate plate 101, and the sealing plates 103 are symmetrically fixedly connected to the top of the gate valve housing 109. The inner wall of the pressure cover 114 is slidably connected to the driven shaft, and the driven shaft is fixedly connected to the gate plate 101;

[0026] The inside of the gate valve housing 109 is insulated by the first insulation layer 108 and the second insulation layer 112, the movable end is connected to the gate plate 101 by the gasket 102, the seamless pipe 110 is supported by the sealing plate 103, and the moving accuracy of the gate plate 101 is improved by the synchronous movement of the driven shaft and the electric push rod 106;

[0027] A sealing ring 104 is fixedly connected to the top of the sealing plate 103, a spacer 113 is fixedly connected to the inner cavity of the sealing ring 104, four seamless pipes 110 are fixedly connected to the top of the sealing plate 103 at equal intervals around the circumference, a gland 114 is fixedly connected to the top of the seamless pipe 110, a bearing seat 115 is fixedly connected to the top of the gland 114, and a bearing 105 is fixedly connected to the top of the bearing seat 115;

[0028] The connection is sealed by the sealing ring 104, the shaft is protected by the spacer 113, the gland 114 is supported by the seamless tube 110, and the bearing seat 115 is supported by the gland 114;

[0029] The water cooling mechanism 2 includes a flow slot 201 provided on the gate plate 101, a hollow movable end of the electric push rod 106, an input hole provided on the outer wall, a connecting slot 202 provided through the top of the gate plate 101 corresponding to the movable end, and a partition 203 provided on the inner wall of the gate valve housing 109;

[0030] The liquid is circulated through the circulation groove 201, the liquid is input into the movable end through the input hole, the liquid enters the circulation groove 201 through the connecting groove 202, and the liquid is input into the interlayer 203 to cool the gate valve housing 109;

[0031] The cooling water is input into the inner cavity of the movable end through the input hole of the movable end of the electric push rod 106, and the cooling water is input into the flow groove 201 in the gate plate 101 through the connecting groove 202. The cooling water is circulated in the gate plate 101 for water cooling. The sealing structure at the top of the interlayer 203 is opened, and the cooling liquid is input into the interlayer 203. The cooling liquid cools the inner cavity of the gate valve housing 109.

[0032] This step can ensure that the temperature of the valve body is not too high, reduce the efficiency of the gate plate 101 getting stuck, and realize high temperature testing. The cavity structure will basically not be deformed. When the electric push rod 106 drives the gate plate 101 to move, the driven shaft is used to improve the movement accuracy of the gate plate 101 and the sealing of the valve body.

[0033] The shock absorbing mechanism 3 includes a support frame 301 fixedly connected to the bottom of the gate valve housing 109, a movable plate 302 is slidably connected to the inner wall of the support frame 301, the movable plate 302 is fixedly connected to the outer wall of the gate valve housing 109, a damper is fixedly connected to the bottom of the movable plate 302 and the inner wall of the support frame 301, and a shock absorbing spring 303 is fixedly connected between the two dampers;

[0034] The entire device is supported by the support frame 301, the shock absorbing spring 303 is driven to expand and contract by the movement of the movable plate 302, and the shock absorbing spring 303 and the damper are combined to provide shock absorbing protection for the movable plate 302;

[0035] The fixing mechanism 4 includes a fixing frame 401 fixedly connected to the outer wall of the inlet and outlet ends of the gate valve housing 109, the fixing frame 401 is fixedly connected to the pipe to be connected, and the fixing frame 401 penetrates and enters the inner cavity of the gate valve housing 109 to open a mounting hole;

[0036] The connecting pipe is driven to connect the inlet and outlet ends of the gate valve housing 109 through the fixing frame 401;

[0037] A fixing cylinder 402 is fixedly connected to the inner cavity of the mounting hole, a rotating frame 403 is threadedly connected to the inner wall of the fixing cylinder 402, a spring 404 is fixedly connected to the outer wall of the rotating frame 403, a push frame 405 is fixedly connected to the end of the spring 404, a limiting hole is provided at the end of the fixing cylinder 402, and a limiting ball 406 is slidably connected to the inner wall of the limiting hole;

[0038] The rotating frame 403 is manually rotated to compress the spring 404, and the spring 404 extends to the other end to drive the push frame 405 to move. The push frame 405 makes the limiting ball 406 extend from the limiting hole and contact the inner cavity of the gate valve housing 109 to limit the fixed frame 401;

[0039] By means of the support frame 301, the movable plate 302 and the shock absorbing spring 303, when the whole device is used, the fluid will exert an external force on the valve body when passing through, and the external force acts on the gate valve housing 109, driving the gate valve housing 109 to vibrate, and the gate valve housing 109 drives the movable plate 302 to move along the support frame 301, and the movable plate 302 moves up and down to provide shock absorbing protection for the whole device through the combination of the damper and the shock absorbing spring 303, and the rotating frame 403 is manually rotated to drive the spring 404 to be compressed, and the spring 404 extends to the other end to drive the push frame 405 to move, and the push frame 405 makes the limiting ball 406 extend from the limiting hole to contact the inner cavity of the gate valve housing 109 to limit the fixed frame 401;

[0040] This step can reduce the impact effect of external force on the valve body and extend the service life of the valve body.

Claims

1. A switching valve structure for high temperature sintering, characterized in that: It comprises a main body mechanism (1) and a water cooling mechanism (2), wherein the main body mechanism (1) comprises a gate valve housing (109), the outer wall of the gate valve housing (109) being fixedly connected to a push rod seat (107), the outer wall of the push rod seat (107) being fixedly connected to two supports (117) at equal intervals, the outer wall of the support (117) being fixedly connected to a pipe clamp (111), the inner wall of the pipe clamp (111) being fixedly connected to an electric push rod (106), the movable end of the electric push rod (106) being fixedly connected to a gate plate (101), and the outer wall of the movable end of the electric push rod (106) being fixedly connected to a joint (116); The water cooling mechanism (2) comprises a flow groove (201) provided in the gate plate (101); the movable end of the electric push rod (106) is hollow and an input hole is provided on the outer wall; a connection groove (202) is provided through the top of the gate plate (101) corresponding to the movable end; and a partition (203) is provided on the inner wall of the gate valve housing (109).

2. A high temperature sintering dedicated switching valve structure according to claim 1, characterized in that: A first thermal insulation layer (108) and a second thermal insulation layer (112) are symmetrically fixedly connected to the inner wall of the gate valve housing (109), a gasket (102) is fixedly connected between the movable end of the electric push rod (106) and the gate plate (101), a sealing plate (103) is symmetrically fixedly connected to the top of the gate valve housing (109), a driven shaft is slidably connected to the inner wall of the gland (114), and the driven shaft is fixedly connected to the gate plate (101).

3. A high temperature sintering dedicated switching valve structure according to claim 2, characterized in that: The top of the sealing plate (103) is fixedly connected to a sealing ring (104), the inner cavity of the sealing ring (104) is fixedly connected to a spacer (113), the top of the sealing plate (103) is fixedly connected to four seamless tubes (110) at equal intervals around the circumference, the top of the seamless tube (110) is fixedly connected to a pressure cover (114), the top of the pressure cover (114) is fixedly connected to a bearing seat (115), and the top of the bearing seat (115) is fixedly connected to a bearing (105).

4. A high temperature sintering dedicated switching valve structure according to claim 1, characterized in that: The switching valve structure also includes a shock absorbing mechanism (3), the shock absorbing mechanism (3) including a support frame (301) fixedly connected to the bottom of the gate valve housing (109), a movable plate (302) slidably connected to the inner wall of the support frame (301), the movable plate (302) being fixedly connected to the outer wall of the gate valve housing (109), a damper being fixedly connected to the bottom of the movable plate (302) and the inner wall of the support frame (301), and a shock absorbing spring (303) being fixedly connected between the two dampers.

5. The high temperature sintering dedicated switching valve structure according to claim 1, characterized in that: The switching valve structure also includes a fixing mechanism (4), the fixing mechanism (4) including a fixing frame (401) fixedly connected to the outer wall of the inlet and outlet ends of the gate valve housing (109), the fixing frame (401) being fixedly connected to the pipe to be connected, and the fixing frame (401) passing through and entering the inner cavity of the gate valve housing (109) to open a mounting hole.

6. A high temperature sintering dedicated switching valve structure according to claim 5, characterized in that: The inner cavity of the mounting hole is fixedly connected to a fixing cylinder (402), the inner circumferential wall of the fixing cylinder (402) is threadedly connected to a rotating frame (403), the outer wall of the rotating frame (403) is fixedly connected to a spring (404), the end of the spring (404) is fixedly connected to a pushing frame (405), a limiting hole is provided at the end of the fixing cylinder (402), and a limiting ball (406) is slidably connected to the inner wall of the limiting hole.

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