Integrated full-lining ceramic heat preservation jacket ball valve

Abstract

The utility model relates to the technical field of ceramic ball valves, in particular to an integrated full-lining ceramic heat preservation jacket ball valve which comprises an integrated flange valve body, a valve body lining is installed in a cavity of the integrated flange valve body, a valve element piece is installed in the center of the interior of the valve body lining, and the valve element piece is connected with the valve body lining. A left valve seat and a right valve seat are detachably and fixedly installed in the positions, on the left side and the right side of the valve element piece, of an inner cavity of the valve body lining in a sealing fit mode respectively, a valve rod cavity is formed in the top of the middle section of the integrated flange valve body, a valve rod piece is installed in the valve rod cavity in a matched mode, and the lower end of the valve rod piece is connected with the bottom of the valve element piece. The upper end of the valve rod piece penetrates through the valve rod limiting sealing unit in the valve rod cavity and extends to the position above the valve rod limiting sealing unit. The whole flow channel in the ball valve is made of structural ceramics, a medium in the ball valve can only make contact with the surface of a ceramic piece and cannot make contact with a metal piece, and therefore the problem that an existing heat preservation jacket ball valve cannot be used under the working conditions of abrasion and corrosion can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic ball valves, in particular to an integrated fully lined ceramic insulation jacket ball valve. Background Art

[0002] In today's chemical, metallurgical, petroleum, pharmaceutical, food and other industries, due to the particularity of the process, insulated jacketed ball valves are used to transport high-viscosity media that will solidify at room temperature. However, in the above industries, many media have the characteristics of corrosion and wear. High temperature conditions will also accelerate the corrosion and wear of ordinary insulated jacketed ball valves, greatly shortening the service life of the valve.

[0003] At present, there are many solutions for improving ordinary insulation jacket ball valves in the prior art. For example, a insulation jacket ball valve is disclosed in the patent document with the patent authorization announcement number CN214889012U, which mainly includes a valve body, an upper valve stem, a lower valve stem, a valve core, a valve seat, an extension part, a first sealing ring, a spring, a first shaft sleeve, a second shaft sleeve, an insulation jacket and multiple sets of sealing ring structures.

[0004] It can be seen from its structure that the valve core of the above-mentioned insulation jacket ball valve adopts a hemisphere, and the inlet of the medium contacts metal. This structure cannot be used under highly corrosive conditions; in addition, the valve is a one-way valve, which greatly limits its use conditions.

[0005] In addition, the prior art also provides a patent document with a patent authorization announcement number of CN204785032U and a patent name of a thermal insulation jacket ball valve, the main structure of which includes a valve body, a thermal insulation jacket surrounding the valve body and fixed on the valve body, the thermal insulation jacket and the outer surface of the valve body form a thermal insulation cavity, and the thermal insulation jacket is provided with a heat source inlet and a heat source outlet. It can be seen that the thermal insulation jacket ball valve in the above patent document is also an ordinary thermal insulation jacket ball valve, which can only be used in ordinary working conditions and is not suitable for use in wear and corrosion conditions.

[0006] To this end, the present invention optimizes the deficiencies in the valve structure in the chemical, metallurgical, petroleum, pharmaceutical, food and other industries in the prior art, and proposes an integrated thermal insulation jacketed ceramic ball valve and an assembly method thereof to better solve the problems existing in the prior art. Utility Model Content

[0007] The utility model is to solve one of the above-mentioned technical problems, and the technical solution adopted is: an integrated fully lined ceramic insulated jacketed ball valve, including an integrated flange valve body, a valve body lining is installed in the cavity of the integrated flange valve body, a valve core member is installed at the inner center position of the valve body lining, and a left valve seat and a right valve seat that are detachably fixedly installed are respectively sealed and installed in the inner cavity of the valve body lining on the left and right sides of the valve core member, a valve stem cavity is opened at the top of the middle section of the integrated flange valve body, a valve stem member is installed in the valve stem cavity, the lower end of the valve stem member is connected to the bottom of the valve core member, the upper end of the valve stem member passes through the valve stem limiting sealing unit in the valve stem cavity and extends above it, and the integrated flange valve body is insulated by the insulation medium flowing into its insulation cavity.

[0008] In any of the above schemes, it is preferred that the valve core component includes a ball core installed at the internal center position of the valve body lining, a through hole is horizontally arranged at the center of the ball core, and the outer side walls on both sides of the ball core are sealed against the corresponding sealing surface of the left valve seat and the corresponding sealing surface of the right valve seat.

[0009] In any of the above schemes, preferably, the left valve seat and the valve body lining are sealed by a left valve seat sealing ring, and the right valve seat and the valve body lining are sealed by a right valve seat sealing ring;

[0010] The left valve seat and the liner flange are sealed by a left graphite gasket, and the right valve seat and the liner flange are sealed by a right graphite gasket.

[0011] In any of the above schemes, it is preferred that the valve stem member includes a vertical valve stem, the lower end of the valve stem passes through the valve body lining and is connected to the top of the ball core, and the upper end of the valve stem passes through the valve stem cavity and extends above the integrated flange valve body.

[0012] In any of the above schemes, preferably, the valve stem limiting sealing unit includes an annular packing group which is installed in the valve stem cavity outside the valve stem, the bottom of the packing group abuts against the top of the valve body lining, the top of the packing group is flush with the top of the valve stem cavity, a packing pressure ring is sleeved on the outer side wall of the valve stem above the valve stem cavity, a packing pressure plate is installed on the outer side wall of the valve stem above the packing pressure ring, the packing pressure plate is fixed to the one-piece flange valve body by a plurality of fixing screws and its bottom abuts against the top of the packing pressure ring.

[0013] In any of the above schemes, preferably, a thermal insulation shell is welded to the outer side of the integrated flange valve body, a thermal insulation cavity is formed between the thermal insulation shell and the valve body flange, a thermal insulation medium outlet pipe is integrally formed at the bottom of the thermal insulation cavity, and a thermal insulation medium inlet pipe is integrally formed on one side of the upper part of the thermal insulation cavity, the thermal insulation medium inlet pipe and the thermal insulation medium outlet pipe are both connected to the interior of the thermal insulation cavity, and a 90° angle is formed between the thermal insulation medium inlet pipe and the thermal insulation medium outlet pipe.

[0014] In any of the above schemes, it is preferred that the left valve seat and the right valve seat are valve seat bodies with the same structure and the two valve seat bodies are symmetrically arranged, valve seat fixing rings are respectively installed at the ends of the two valve seat bodies, each valve seat body and the valve seat fixing ring on the corresponding side are fixed by gluing, and each valve seat fixing ring is fixed to the lining flange at the corresponding position by corresponding connecting screws.

[0015] In any of the above schemes, preferably, a gap is provided between the outer side wall of the ball core and the corresponding sealing surfaces of the left valve seat and the right valve seat, and the gap can be blocked under pressure to form a one-way seal.

[0016] In any of the above solutions, preferably, the one-piece flange valve body is manufactured by one-piece processing and molding.

[0017] In any of the above solutions, it is preferred that the ball core, the left valve seat, the right valve seat and the valve body lining are all made of structural ceramics.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] The ball valve structure in the utility model can effectively reduce the number of leakage points by relying on the sealing of the left valve seat, the right valve seat and the sealing ring and the graphite gasket on the corresponding side. At the same time, due to the preset gap, one-way sealing can be achieved under the medium pressure delivery state while reducing excessive wear caused by excessive pressure.

[0020] The entire flow channel (ball core, left and right valve seats, and valve body lining) in the utility model is made of structural ceramics. The medium in the ball valve can only contact the surface of the ceramic parts and cannot contact the metal parts. Therefore, it can effectively solve the problem that the current insulation jacket ball valve cannot be used under wear and corrosion conditions.

[0021] The insulation medium of the ball valve is circulated through the insulation medium inlet pipe and the insulation medium outlet pipe to achieve the purpose of insulation; forming a 90° angle between the insulation medium inlet pipe and the insulation medium outlet pipe can better ensure that the medium entering the insulation chamber can be better circulated, effectively improving the conduction effect of the insulation medium inside the insulation chamber.

[0022] The left valve seat and the right valve seat are both removable, easy to install and have no flow direction restrictions. Both the left and right valve seats can be used. After using for a period of time, the positions of the left and right valve seats can be quickly swapped as needed without being restricted by the flow direction, thus greatly improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0025] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0026] Figure 3 It is a side structural schematic diagram of the utility model.

[0027] Figure 4 It is a schematic diagram of the top structure of the utility model.

[0028] In the figure, 1. one-piece flange valve body; 2. valve body lining; 3. left valve seat fixing ring; 4. left valve seat; 5. left graphite gasket; 6. left valve seat sealing ring; 7. right valve seat fixing ring; 8. right valve seat; 9. right graphite gasket; 10. right valve seat sealing ring; 11. ball core; 12. valve stem cavity; 13. valve stem; 14. packing group; 15. packing pressure ring; 16. packing pressure plate; 17. fixing screw; 18. connecting screw; 19. insulation shell; 20. insulation medium inlet pipe; 21. insulation medium outlet pipe. DETAILED DESCRIPTION

[0029] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 4 as shown in .

[0030] An integrated fully lined ceramic insulated jacketed ball valve comprises an integrated flange valve body 1, a valve body liner 2 is installed in the cavity of the integrated flange valve body 1, a valve core component is installed at the inner center position of the valve body liner 2, and a left valve seat 4 and a right valve seat 8 are detachably fixedly installed and sealed in the inner cavity of the valve body liner 2 on the left and right sides of the valve core component, a valve stem 13 cavity 12 is opened at the top of the middle section of the integrated flange valve body 1, a valve stem 13 component is installed in the valve stem 13 cavity 12, the lower end of the valve stem 13 component is connected to the bottom of the valve core component, and the upper end of the valve stem 13 component passes through the valve stem 13 limiting sealing unit in the valve stem 13 cavity 12 and extends above it, and the integrated flange valve body 1 is insulated by the insulation medium flowing into its insulation cavity.

[0031] The left valve seat 4 and the right valve seat 8 of the one-piece fully lined ceramic insulation jacketed ball valve designed in the utility model are both detachable, easy to install and have no flow direction restriction. Both the left and right valve seats can be used. After being used for a period of time, the positions of the left valve seat 4 and the right valve seat 8 can be quickly replaced as needed without being restricted by the flow direction. Therefore, the service life can be greatly improved, and the service life is invisibly increased by 1 times.

[0032] In any of the above schemes, it is preferred that the valve core component includes a ball core 11 installed at the internal center position of the valve body lining 2, and a through hole is horizontally arranged at the center of the ball core 11, and the outer walls on both sides of the ball core 11 are sealed against the corresponding sealing surfaces of the left valve seat 4 and the corresponding sealing surfaces of the right valve seat 8.

[0033] In any of the above schemes, preferably, a gap is provided between the outer side wall of the ball core 11 and the corresponding sealing surfaces of the left valve seat 4 and the right valve seat 8, and the gap can be blocked under pressure to form a one-way seal.

[0034] When in a state of pressure delivery, the ball core 11 can be pushed to move slightly in the axial direction under the action of the medium pressure, so that the reserved gap can be completely blocked, and at the same time, excessive wear can be reduced during use.

[0035] In any of the above schemes, preferably, the left valve seat 4 and the valve body liner 2 are sealed by a left valve seat sealing ring 6, and the right valve seat 8 and the valve body liner 2 are sealed by a right valve seat 8 sealing ring;

[0036] The left valve seat 4 and the liner flange are sealed by a left graphite gasket 5 , and the right valve seat 8 and the liner flange are sealed by a right graphite gasket 9 .

[0037] When the left valve seat 4 and the right valve seat 8 are sealed, the dual functions of the left valve seat sealing ring 6, the right valve seat 8 sealing ring and the corresponding graphite gasket can effectively improve the sealing effect.

[0038] In any of the above schemes, it is preferred that the valve stem 13 comprises a vertical valve stem 13, the lower end of the valve stem 13 passes through the valve body lining 2 and is connected to the top of the ball core 11, and the upper end of the valve stem 13 passes through the valve stem 13 cavity 12 and extends above the one-piece flange valve body 1.

[0039] In any of the above schemes, it is preferred that the valve stem 13 limiting sealing unit includes an annular packing group 14 which is cooperatively installed in the valve stem 13 cavity 12 outside the valve stem 13, the bottom of the packing group 14 abuts against the top of the valve body lining 2, the top of the packing group 14 is flush with the top of the valve stem 13 cavity 12, a packing pressure ring 15 is sleeved on the outer side wall of the valve stem 13 above the valve stem 13 cavity 12, a packing pressure plate 16 is installed on the outer side wall of the valve stem 13 above the packing pressure ring 15, the packing pressure plate 16 is fixed to the one-piece flange valve body 1 by a plurality of fixing screws 17 and its bottom abuts against the top of the packing pressure ring 15.

[0040] The arrangement of the packing group 14 can effectively ensure the sealing of the valve stem 13 , and the packing pressure ring 15 cooperates with the packing pressure ring 15 to limit the internal packing ring.

[0041] In any of the above schemes, it is preferred that an insulation shell 19 is welded to the outer side of the integrated flange valve body 1, an insulation cavity is formed between the insulation shell 19 and the valve body flange, an insulation medium outlet pipe 21 is integrally formed at the bottom of the insulation cavity, and an insulation medium inlet pipe is integrally formed on one side of the upper part of the insulation cavity, the insulation medium inlet pipe and the insulation medium outlet pipe 21 are both connected to the interior of the insulation cavity, and a 90° angle is formed between the insulation medium inlet pipe and the insulation medium outlet pipe 21.

[0042] The insulation medium circulates through the insulation medium inlet pipe and the insulation medium outlet pipe 21 to achieve the purpose of insulation; forming a 90° angle between the insulation medium inlet pipe and the insulation medium outlet pipe 21 can better ensure that the medium entering the insulation chamber can be better circulated, effectively improving the conduction effect of the insulation medium inside the insulation chamber.

[0043] In any of the above schemes, it is preferred that the left valve seat 4 and the right valve seat 8 are valve seat bodies with the same structure and the two valve seat bodies are symmetrically arranged, valve seat fixing rings are respectively installed at the ends of the two valve seat bodies, each valve seat body and the valve seat fixing ring on the corresponding side are fixed by gluing, and each valve seat fixing ring is fixed to the lining flange at the corresponding position by a corresponding connecting screw 18.

[0044] The left valve seat 4 and the right valve seat 8 set here use the valve seat body with the same structure, which can effectively ensure that the left and right parts of the valve seat body are not affected by the flow direction when conveying the medium during use; therefore, after the two valve seat bodies have been used for a period of time, when the valve seat body at one end is worn, both can be quickly replaced, thereby effectively extending the overall service life.

[0045] In addition, the valve seat body and the valve seat fixing ring are fixed by gluing to ensure the firmness of the fixation. At the same time, there is no need to destroy the overall structure of the valve seat body, and a non-destructive installation method is used to ensure its overall service life.

[0046] In any of the above solutions, it is preferred that the one-piece flange valve body 1 is manufactured by one-piece processing and molding.

[0047] The one-piece flange valve body 1 is integrally formed and entirely made of structural ceramics, which can effectively ensure the wear resistance of the entire structure.

[0048] In any of the above solutions, it is preferred that the ball core 11, the left valve seat 4, the right valve seat 8 and the valve body inner lining 2 are all made of structural ceramics.

[0049] The entire flow channel (ball core 11, left and right valve seats 8, valve body lining 2) in the utility model is structural ceramics, and the medium can only contact the surface of the ceramic parts in the ball valve, and cannot contact the metal parts. Therefore, it can effectively solve the problem that the current insulation jacket ball valve cannot be used under wear and corrosion conditions.

[0050] The assembly method of the integrated fully lined ceramic insulation jacketed ball valve in the utility model is as follows:

[0051] 1. The one-piece flange valve body 1 and the valve body inner liner 2 are installed by heat fitting;

[0052] 2. The left valve seat 4 is bonded to the left valve seat fixing ring 3 by gluing, the left valve seat sealing ring 6 is put on the left valve seat 4, and a graphite gasket is placed on the left valve seat 4 and inserted into the valve body lining 2;

[0053] 3. The valve seat fixing ring connecting screw 18 passes through the left valve seat fixing ring 3 and is screwed onto the integrated flange valve body 1;

[0054] 4. The ball core 11 is placed in the middle of the valve body liner 2, and the valve stem 13 passes through the valve stem 13 cavity 12 and the valve body liner 2 and is inserted into the ball core 11;

[0055] 5. The right valve seat 8 is bonded to the right valve seat 8 fixing ring 7 by gluing, the right valve seat 8 sealing ring is put on the right valve seat 8, and a graphite gasket is placed on the right valve seat 8 and inserted into the valve body lining 2;

[0056] 6. The connecting screw 18 passes through the fixing ring 7 of the right valve seat 8 and is screwed onto the integrated flange valve body 1;

[0057] 7. Pass the packing set 14 through the valve stem 13 and place it into the cavity 12 of the valve stem 13;

[0058] 8. The packing press ring 15 passes through the valve stem 13 and is pressed on the packing group 14;

[0059] 9. The packing pressure plate 16 passes through the valve stem 13 and is pressed on the packing pressure ring 15, and is fixed to the one-piece flange valve body 1 by the fixing screws 17;

[0060] 10. The heat-insulating housing 19 is welded to the one-piece flange valve body 1;

[0061] The heat-insulating medium inlet and the heat-insulating medium outlet are welded to the heat-insulating outer shell 19 .

[0062] From the above, it can be seen that the ball valve structure in the utility model can effectively reduce the number of leakage points by relying on the left valve seat 4, the right valve seat 8 and the sealing ring and the graphite gasket on the corresponding side. At the same time, due to the preset gap, one-way sealing can be achieved under the medium pressure delivery state while reducing excessive wear caused by excessive pressure; the entire flow channel (ball core 11, left and right valve seats 8, valve body lining 2) are all structural ceramics, and the medium in the ball valve can only contact the surface of the ceramic parts but not the metal parts. Therefore, it can effectively solve the problem that the current insulation jacket ball valve cannot be used under wear and corrosion conditions.

[0063] During operation, the insulation medium circulates through the insulation medium inlet pipe and the insulation medium outlet pipe 21 to achieve the purpose of insulation; forming a 90° angle between the insulation medium inlet pipe and the insulation medium outlet pipe 21 can better ensure that the medium entering the insulation chamber can be better circulated, effectively improving the conduction effect of the insulation medium inside the insulation chamber.

[0064] In addition, since the left valve seat 4 and the right valve seat 8 are both removable, easy to install and have no flow direction restrictions, both left and right can be used. After using them for a period of time, the positions of the left valve seat 4 and the right valve seat 8 can be quickly swapped as needed without being restricted by flow direction, thereby greatly improving their service life.

[0065] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model. For technicians in this technical field, any replacement improvements or changes made to the implementation methods of the utility model fall within the protection scope of the utility model.

[0066] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. One-piece fully lined ceramic insulation jacketed ball valve, characterized by: The invention comprises an integrated flange valve body, a valve body liner is installed in the cavity of the integrated flange valve body, a valve core member is installed at the inner center position of the valve body liner, a left valve seat and a right valve seat which are detachably fixedly installed are respectively sealed and fitted in the inner cavity of the valve body liner on the left and right sides of the valve core member, a valve stem cavity is opened at the top of the middle section of the integrated flange valve body, a valve stem member is fitted in the valve stem cavity, the lower end of the valve stem member is connected to the bottom of the valve core member, the upper end of the valve stem member passes through the valve stem limiting sealing unit in the valve stem cavity and extends above it, and the integrated flange valve body is insulated by the insulation medium flowing into its insulation cavity.

2. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 1 is characterized in that: The valve core component includes a ball core installed at the inner center position of the valve body lining, a through hole is horizontally arranged at the center of the ball core, and the outer side walls on both sides of the ball core are sealed against the corresponding sealing surfaces of the left valve seat and the corresponding sealing surfaces of the right valve seat.

3. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 2 is characterized in that: The left valve seat and the valve body lining are sealed by a left valve seat sealing ring, and the right valve seat and the valve body lining are sealed by a right valve seat sealing ring; The left valve seat and the liner flange at the corresponding position are sealed by a left graphite gasket, and the right valve seat and the liner flange at the corresponding position are sealed by a right graphite gasket.

4. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 3 is characterized by: The valve stem member comprises a vertical valve stem, the lower end of which passes through the valve body inner lining and is connected to the top of the ball core, and the upper end of which passes through the valve stem cavity and extends above the integrated flange valve body.

5. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 4 is characterized in that: The valve stem limiting sealing unit includes an annular packing group which is installed in the valve stem cavity outside the valve stem, the bottom of the packing group abuts against the top of the valve body lining, the top of the packing group is flush with the top of the valve stem cavity, a packing pressure ring is sleeved on the outer side wall of the valve stem above the valve stem cavity, a packing pressure plate is installed on the outer side wall of the valve stem above the packing pressure ring, the packing pressure plate is fixed to the one-piece flange valve body by a plurality of fixing screws and the bottom thereof abuts against the top of the packing pressure ring.

6. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 5 is characterized in that: An insulation shell is welded on the outer side of the integrated flange valve body, and an insulation cavity is formed between the insulation shell and the valve body flange. An insulation medium outlet pipe is integrally formed at the bottom of the insulation cavity, and an insulation medium inlet pipe is integrally formed on one side of the upper part of the insulation cavity. The insulation medium inlet pipe and the insulation medium outlet pipe are both connected to the interior of the insulation cavity, and a 90° angle is formed between the insulation medium inlet pipe and the insulation medium outlet pipe.

7. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 6 is characterized in that: The left valve seat and the right valve seat are valve seat bodies with the same structure and the two valve seat bodies are symmetrically arranged. Valve seat fixing rings are respectively installed at the ends of the two valve seat bodies. Each valve seat body and the valve seat fixing ring on the corresponding side are fixed by gluing, and each valve seat fixing ring is fixedly connected to the lining flange at the corresponding position by corresponding connecting screws.

8. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 7 is characterized in that: A gap is provided between the outer side wall of the ball core and the corresponding sealing surfaces of the left valve seat and the right valve seat, and the gap can be blocked under pressure to form a one-way seal.

9. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 8 is characterized in that: The one-piece flange valve body is manufactured by one-piece processing and molding.

10. The one-piece fully lined ceramic insulation jacketed ball valve according to claim 9, characterized in that: The ball core, the left valve seat, the right valve seat and the valve body lining are all made of structural ceramics.

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