High-temperature carbon salt regulating valve

Abstract

The invention discloses a high-temperature carbon salt regulating valve, and relates to the technical field of regulating valves. A high-temperature carbon salt regulating valve comprises a valve body, the valve body comprises an internal flow channel, one port of the flow channel is an inlet, and the other port of the flow channel is an outlet; the valve body further comprises an internal containing hole, the containing hole is communicated with the flow channel, a valve rod is arranged in the containing hole in a penetrating mode, a control mechanism connected with the valve rod is installed on the valve body, and the control mechanism is configured to be capable of controlling the valve rod to move in a reciprocating mode so as to open and close the flow channel. A guide sleeve and a pressing sleeve are detachably installed in the containing hole, a filling gap is formed among the guide sleeve, the pressing sleeve and the valve rod, and the filling gap is filled with abrasion-resistant sealing filler. During use, fluid overflow can be prevented as much as possible.

Description

Technical Field

[0001] The present application relates to the technical field of regulating valves, and in particular to a high-temperature carbon salt regulating valve. Background Art

[0002] High temperature carbon salt regulating valve is a valve used in catalytic cracking hydrogen production system. This system uses molten metal as a catalyst to allow natural gas to pass through the molten metal catalyst and crack into hydrogen and carbon products in the reactor. In this system, the valve's fluid medium includes 62% molten salt, 30% solid carbon powder and 8% bismuth metal. This medium is a mixture of solid and liquid.

[0003] A regulating valve is disclosed, which includes a valve body, a flow channel for fluid flow inside the valve body, and a receiving hole connected to the flow channel. A sleeve is installed in the receiving hole, and a valve stem for opening / closing the flow channel is installed on the inner wall of the sleeve. The fluid is turned on / off based on the reciprocating movement of the valve stem in the sleeve.

[0004] With respect to the above-mentioned related solutions, the inventors believe that the following defects exist: the multiple reciprocating movements of the valve stem may cause the sleeve to be worn, which may subsequently cause the fluid to overflow through the gap between the valve stem and the sleeve, which may lead to the occurrence of safety accidents. Summary of the invention

[0005] In order to prevent fluid overflow as much as possible, the present application provides a high-temperature carbon salt regulating valve.

[0006] The high-temperature carbon salt regulating valve provided in this application adopts the following technical solution: A high-temperature carbon salt regulating valve comprises a valve body, the valve body comprises an internal flow channel, one port of the flow channel is an inlet, and the other port is an outlet; the valve body also comprises an internal receiving hole, the receiving hole is communicated with the flow channel, a valve stem is passed through the receiving hole, a control mechanism connected to the valve stem is installed on the valve body, the control mechanism is configured to control the reciprocating movement of the valve stem to open and close the flow channel; a guide sleeve and a pressing sleeve are detachably installed in the receiving hole, a filling gap is formed between the guide sleeve, the pressing sleeve and the valve stem, and the filling gap is filled with wear-resistant sealing filler.

[0007] By adopting the above technical solution, the control mechanism can drive the valve stem to move back and forth to open and close the flow channel to realize the on and off of the fluid; the wear-resistant sealing packing can seal the valve stem and the receiving hole to prevent the fluid from leaking through the gap between the valve stem and the receiving hole, and based on the characteristics of the wear-resistant sealing packing, the wear-resistant sealing packing can still effectively seal the valve stem and the receiving hole after the valve stem moves multiple times; in addition, if the wear-resistant sealing packing is also worn and reduced in amount, the guide sleeve or the compression sleeve can be removed to add the wear-resistant sealing packing. This application can prevent fluid overflow as much as possible.

[0008] Preferably, the control mechanism comprises a frame, the frame is mounted on the valve body, a reciprocating drive member connected to the valve stem is mounted on the frame, and the reciprocating drive member is used to drive the valve stem to move reciprocally.

[0009] By adopting the above technical solution, the reciprocating drive member can be driven to drive the valve stem to reciprocate reliably.

[0010] Preferably, a guide column is also installed on the valve body, the valve stem is connected to a guide block, and the guide column is slidably connected to the guide block.

[0011] By adopting the above technical solution, the sliding connection between the guide block and the guide member can prevent the valve stem from rotating when it moves. This design is used to prevent the valve stem from rotating and causing fluid overflow.

[0012] Preferably, the valve stem comprises a sub-rod 1, a heat insulating pad and a sub-rod 2 which are fixedly connected in sequence, and the sub-rod 1 is connected to the control mechanism.

[0013] By adopting the above technical solution, the fluid may be a high-temperature fluid, and the thermal insulation pad can prevent the heat of the high-temperature fluid from being transferred through the sub-rod one to the sub-rod two and finally to the reciprocating drive member.

[0014] Preferably, the pressing sleeve is configured to be able to slide in the receiving hole; a pressing mechanism is also detachably mounted on the valve body, the pressing mechanism is connected to the pressing sleeve, and the pressing mechanism is configured to be able to press the pressing sleeve against the wear-resistant sealing packing.

[0015] By adopting the above technical solution, when the valve stem moves, the pressing mechanism can always make the compression sleeve press against the sealing packing. This structure is used to prevent the compression sleeve from moving significantly when the valve stem moves. In addition, the pressing mechanism can be disassembled to remove the compression sleeve.

[0016] Preferably, the pressing mechanism includes a connecting frame, which is detachably connected to the valve body. A disc spring is provided between the connecting frame and the pressing sleeve. One end of the disc spring is connected to the connecting frame, and the other end is connected to the pressing sleeve. The disc spring is in a compressed state, and the disc spring is configured to be able to resist the pressing sleeve and provide micro-motion capability for the pressing sleeve.

[0017] By adopting the above technical solution, when the valve stem moves, the disc spring will always provide the compression sleeve with a force to press against the wear-resistant sealing packing so that the wear-resistant sealing packing can always fully contact the valve stem; Based on the micro-motion ability provided by the disc spring for the compression sleeve, when the wear-resistant sealing packing rubs against the valve stem for many times and wears, resulting in a reduction in the amount of the wear-resistant sealing packing, the disc spring will always press the compression sleeve, so the wear-resistant sealing packing itself will flow and adaptively continue to fully contact the valve stem. The adaptive shape adjustment of the wear-resistant sealing packing itself will be carried out slowly along with the reciprocating movement of the valve stem. This design is used to ensure that even if the wear-resistant sealing packing is reduced, the wear-resistant sealing packing can still meet the sealing requirements; of course, if the wear-resistant sealing packing is reduced too much, it is necessary to remove the compression sleeve to replenish the wear-resistant sealing packing.

[0018] Preferably, the guide sleeve comprises a packing pad close to one end of the wear-resistant sealing packing, and the packing pad is slidably attached to the valve stem.

[0019] By adopting the above technical solution, the packing pad can expand and contract with heat to ensure the fit to the valve stem and prevent fluid from overflowing.

[0020] Preferably, the valve stem includes an abutment portion on the side wall, the flow channel has a step portion, and the abutment portion is configured to be movable and abut against the step portion to limit the movement stroke of the valve stem.

[0021] By adopting the above technical solution, the valve stem can be prevented from over-moving.

[0022] Preferably, the outlet is a bell mouth.

[0023] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The control mechanism can drive the valve stem to move back and forth to open and close the flow channel to realize the on and off of the fluid; the wear-resistant sealing packing can seal the valve stem and the receiving hole to prevent the fluid from leaking through the gap between the valve stem and the receiving hole, and based on the characteristics of the wear-resistant sealing packing, the wear-resistant sealing packing can still effectively seal the valve stem and the receiving hole after the valve stem moves multiple times; in addition, if the wear-resistant sealing packing is also worn and reduced, the guide sleeve or the compression sleeve can be removed to add the wear-resistant sealing packing. This application can prevent fluid overflow as much as possible; 2. When the valve stem moves, the disc spring will always provide the pressure sleeve with a force to press against the wear-resistant sealing packing so that the wear-resistant sealing packing can always fully contact the valve stem; and based on the micro-motion ability provided by the disc spring to the pressure sleeve, when the wear-resistant sealing packing rubs against the valve stem for many times and wears, resulting in a reduction in the amount of the wear-resistant sealing packing, the disc spring will always press the pressure sleeve, so the wear-resistant sealing packing itself will flow and adaptively continue to fully contact the valve stem. This adaptive shape adjustment of the wear-resistant sealing packing itself will be carried out slowly along with the reciprocating movement of the valve stem. This design is used to ensure that even if the wear-resistant sealing packing is reduced, the wear-resistant sealing packing can still meet the sealing requirements; of course, if the wear-resistant sealing packing is reduced too much, it is necessary to remove the pressure sleeve to replenish the wear-resistant sealing packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a high-temperature carbon salt regulating valve in an embodiment of the present application; Figure 2 is a cross-sectional view of a high-temperature carbon salt regulating valve in an embodiment of the present application; Figure 3 yes Figure 2 Enlarged view of part A.

[0025] Markings in the accompanying drawings: 1. valve body; 11. flow channel; 111. inlet; 112. outlet; 113. step portion; 12. receiving hole; 121. filling gap; 2. valve stem; 21. sub-rod one; 22. thermal insulation pad; 23. sub-rod two; 231. abutment portion; 3. control mechanism; 31. frame; 32. reciprocating drive member; 33. guide column; 34. guide block; 341. connecting hole; 4. guide sleeve; 41. packing pad; 5. pressing sleeve; 6. wear-resistant sealing packing; 7. pressing mechanism; 71. connecting frame; 711. connecting ring; 712. stud; 72. disc spring. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The embodiment of the present application discloses a high-temperature carbon salt regulating valve, which is used to realize reliable on-off of high-temperature fluid.

[0029] Reference Figure 1 and Figure 2The high-temperature carbon salt regulating valve includes a valve body 1, which includes an internal flow channel 11, one end of the flow channel 11 is an inlet 111, and the other end is an outlet 112, wherein the outlet 112 is a bell mouth for facilitating the outflow of the fluid; the valve body 1 also includes an internal receiving hole 12, the receiving hole 12 is vertically arranged, the receiving hole 12 is connected with the flow channel 11, a valve stem 2 is vertically penetrated through the receiving hole 12, a control mechanism 3 connected with the valve stem 2 is installed on the valve body 1, and the control mechanism 3 can control the valve stem 2 to move up and down to open and close the flow channel 11.

[0030] Reference Figure 2 and Figure 3 The receiving hole 12 is detachably installed with a guide sleeve 4 and a pressing sleeve 5. A filling gap 121 is formed between the guide sleeve 4, the pressing sleeve 5 and the valve stem 2. The filling gap 121 is filled with a wear-resistant sealing filler 6. The wear-resistant sealing filler 6 adopts a flowable mixture of vermiculite + ceramic components. Its structure is that ceramic fibers and vermiculite particles are combined by a special process. Both ceramics and vermiculite themselves have the characteristics of high temperature resistance and salt corrosion resistance. The wear-resistant sealing filler 6 can remain stable and not oxidized at 1000°C, meeting the high-temperature use requirements of this application.

[0031] Reference Figure 2 and Figure 3 In order to further ensure the sealing performance, the guide sleeve 4 includes a packing pad 41 near one end of the wear-resistant sealing packing 6. The material of the packing pad 41 is graphite, for example. The packing pad 41 is slidably attached to the valve stem 2. The packing pad 41 can expand and contract with heat to ensure the fit with the valve stem 2, thereby further preventing the fluid from overflowing.

[0032] In the present application, the control mechanism 3 is used to drive the valve stem 2 to move back and forth to open and close the flow channel 11 to realize the on and off of the fluid. When the valve stem 2 is working, the wear-resistant sealing packing 6 can seal the valve stem 2 and the receiving hole 12 to prevent the fluid from leaking through the gap between the valve stem 2 and the receiving hole 12. Based on the characteristics of the wear-resistant sealing packing 6, the wear-resistant sealing packing 6 can still effectively seal the valve stem 2 and the receiving hole 12 after the valve stem 2 moves multiple times; in addition, if the wear-resistant sealing packing 6 is also worn and reduced in volume, the guide sleeve 4 or the compression sleeve 5 can be removed to add the wear-resistant sealing packing 6.

[0033] Reference Figure 1 The control mechanism 3 includes a frame 31, which is mounted on the valve body 1. The frame 31 is equipped with a reciprocating drive 32 connected to the valve stem 2. The reciprocating drive 32 is preferably an electric reciprocating actuator for a valve. Its structure is a prior art and will not be described here. The reciprocating drive 32 is used to drive the valve stem 2 to move up and down. Figure 1In order to guide the movement of the valve stem 2 and prevent the valve stem 2 from rotating when moving, two guide posts 33 are also installed on the valve body 1. The valve stem 2 is connected to a guide block 34. The two guide posts 33 are respectively located on both sides of the guide block 34. Both guide posts 33 are slidably connected to the guide block 34. Figure 2 In order to prevent the valve stem 2 from over-moving, the valve stem 2 includes an abutment portion 231 on the side wall, and the flow channel 11 has a step portion 113. The abutment portion 231 is configured to be movable and abut against the step portion 113 to limit the movement stroke of the valve stem 2.

[0034] Reference Figure 2 and Figure 3 In order to prevent the heat in the fluid from being transferred to the reciprocating drive member 32 through the valve stem 2 and causing damage to the reciprocating drive member 32, the valve stem 2 includes a sub-rod 1 21, an insulation pad 22 and a sub-rod 23 fixedly connected in sequence from top to bottom. The insulation pad 22 is, for example, an insulation block made of a ceramic fiber matrix. The sub-rod 1 21 is connected to the reciprocating drive member 32; a connecting hole 341 is formed through the guide block 34, and the insulation pad 22 is located in the connecting hole 341.

[0035] Reference Figure 1 , Figure 2 and Figure 3 , the pressing sleeve 5 is configured to be able to slide in the receiving hole 12; the valve body 1 can also be detachably mounted with a pressing mechanism 7, which is connected to the pressing sleeve 5, and can press the pressing sleeve 5 against the sealing packing. Specifically, the pressing mechanism 7 includes a connecting frame 71, which is detachably connected to the valve body 1, and a disc spring 72 is provided between the connecting frame 71 and the pressing sleeve 5, one end of the disc spring 72 is connected to the connecting frame 71, and the other end is connected to the pressing sleeve 5, and the disc spring 72 is always in a compressed state, and the disc spring 72 can resist the pressing sleeve 5 and can provide micro-motion capability for the pressing sleeve 5. More specifically, the connecting frame 71 includes a connecting ring 711, and the sub-rod 23 is passed through the connecting ring 711, and a plurality of studs 712 are connected to the connecting ring 711, and the connecting ring 711 is detachably connected to the valve body 1 through the plurality of studs 712.

[0036] When the valve stem 2 moves, the disc spring 72 will always provide the pressing sleeve 5 with a force to press against the wear-resistant sealing packing 6 so that the wear-resistant sealing packing 6 can always fully contact the valve stem 2 to ensure the sealing performance.

[0037] In addition, based on the micro-motion ability provided by the disc spring 72 to the pressing sleeve 5, when the wear-resistant sealing packing 6 rubs against the valve stem 2 for many times and wears, thereby causing the wear-resistant sealing packing 6 to decrease in amount, since the disc spring 72 will always press the pressing sleeve 5, the wear-resistant sealing packing 6 itself will flow and adaptively continue to fully contact the valve stem 2. This adaptive shape adjustment of the wear-resistant sealing packing 6 itself will be carried out slowly along with the reciprocating movement of the valve stem 2. This design is used to ensure that even if the wear-resistant sealing packing 6 is reduced in amount, the wear-resistant sealing packing 6 can still meet the sealing requirements; of course, if the wear-resistant sealing packing 6 is reduced too much, it is necessary to disassemble the connecting ring 711, the disc spring 72 and the pressing sleeve 5 to replenish the wear-resistant sealing packing 6.

[0038] The implementation principle of the high temperature carbon salt regulating valve in the embodiment of the present application is: The reciprocating drive member 32 is driven to drive the valve stem 2 to move back and forth to open and close the flow channel 11 to achieve the flow of the fluid. When the valve stem 2 moves back and forth, the disc spring 72 will press against the compression sleeve 5 so that the wear-resistant sealing packing 6 is always in close contact with the valve stem 2. The wear-resistant sealing packing 6 can still effectively seal the valve stem 2 and the receiving hole 12.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature carbon salt regulating valve, characterized in that: The invention comprises a valve body (1), wherein the valve body (1) comprises an internal flow channel (11), wherein one end of the flow channel (11) is an inlet (111) and the other end is an outlet (112); the valve body (1) also comprises an internal receiving hole (12), wherein the receiving hole (12) is communicated with the flow channel (11), wherein a valve stem (2) is passed through the receiving hole (12), wherein a control mechanism (3) connected to the valve stem (2) is installed on the valve body (1), wherein the control mechanism (3) is configured to be able to control the reciprocating movement of the valve stem (2) so as to open and close the flow channel (11); wherein a guide sleeve (4) and a pressing sleeve (5) are detachably installed in the receiving hole (12), wherein a filling gap (121) is formed between the guide sleeve (4), the pressing sleeve (5) and the valve stem (2), wherein the filling gap (121) is filled with a wear-resistant sealing filler (6).

2. The high temperature carbon salt regulating valve according to claim 1, characterized in that: The control mechanism (3) comprises a frame (31), wherein the frame (31) is mounted on the valve body (1), and the frame (31) is provided with a reciprocating drive member (32) connected to the valve stem (2), wherein the reciprocating drive member (32) is used to drive the valve stem (2) to move reciprocatingly.

3. The high temperature carbon salt regulating valve according to claim 2, characterized in that: A guide column (33) is also installed on the valve body (1), and the valve stem (2) is connected to a guide block (34), and the guide column (33) is slidably connected to the guide block (34).

4. The high temperature carbon salt regulating valve according to claim 3 is characterized in that: The valve stem (2) comprises a sub-stem 1 (21), a heat insulation pad (22) and a sub-stem 2 (23) which are fixedly connected in sequence, and the sub-stem 1 (21) is connected to the control mechanism (3).

5. The high temperature carbon salt regulating valve according to claim 1, characterized in that: The pressing sleeve (5) is configured to be able to slide in the receiving hole (12); the valve body (1) is also provided with a pressing mechanism (7) which can be detachably mounted thereon, the pressing mechanism (7) being connected to the pressing sleeve (5), and the pressing mechanism (7) being configured to be able to press the pressing sleeve (5) against the wear-resistant sealing packing (6).

6. The high temperature carbon salt regulating valve according to claim 5, characterized in that: The pressing mechanism (7) comprises a connecting frame (71), wherein the connecting frame (71) is detachably connected to the valve body (1), and a disc spring (72) is provided between the connecting frame (71) and the pressing sleeve (5), wherein one end of the disc spring (72) is connected to the connecting frame (71), and the other end is connected to the pressing sleeve (5), and the disc spring (72) is in a compressed state, and the disc spring (72) is configured to be able to press against the pressing sleeve (5) and to provide micro-motion capability for the pressing sleeve (5).

7. The high temperature carbon salt regulating valve according to claim 1, characterized in that: The guide sleeve (4) comprises a packing pad (41) close to one end of the wear-resistant sealing packing (6), and the packing pad (41) is slidably attached to the valve stem (2).

8. The high temperature carbon salt regulating valve according to claim 1, characterized in that: The valve stem (2) comprises an abutment portion (231) on a side wall, the flow channel (11) has a step portion (113), and the abutment portion (231) is configured to be movable and abut against the step portion (113) so as to limit the movement stroke of the valve stem (2).

9. The high temperature carbon salt regulating valve according to claim 1, characterized in that: The outlet (112) is a bell mouth.

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