Ton bucket valve for new energy

Abstract

The invention belongs to the technical field of valves, and particularly relates to a ton barrel valve for new energy. Comprising a valve body and a valve cover, the valve body is provided with a rear-end flange used for installing the valve cover, the valve cover is half embedded in the end face of the rear-end flange, the part, protruding out of the end face, of the valve cover abuts against a flange opening of the ton barrel, and the rear-end flange and the ton barrel flange lock the valve cover and the flange opening of the ton barrel so that the valve cover and the flange opening of the ton barrel can be connected in a sealed mode. A plurality of clamp seats are arranged on the circumferential face of the valve deck, a plurality of limiting clamping grooves are formed in the end face of the rear end flange, the clamp seats are embedded in the limiting clamping grooves in a one-to-one correspondence mode and locked and fixed through bolts and nuts, first through holes penetrating through the rear end flange are formed in the limiting clamping grooves, second through holes are formed in the clamp seats, and the second through holes are communicated with the limiting clamping grooves. The bolt and the nut penetrate through the two through holes to be locked and matched; the number of leakage risk points can be reduced in the vibration process in the horizontal direction and the vertical direction when the ton barrel and the ton barrel valve are transported.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves, and particularly relates to a ton barrel valve for new energy. Background Art

[0002] A ton barrel is a standardized intermediate bulk container widely used in industries such as chemical, food, and medicine, usually with a capacity of 1000 liters or more, and is used for the safe storage and transportation of liquids, semi - fluids, or powdery substances. As one of the core components of the ton barrel, the ton barrel valve undertakes the key functions of controlling the loading and unloading of the medium, sealing, and safe discharge, and its design and performance are directly related to the tightness, operation efficiency, and environmental safety of the ton barrel. A ton barrel valve is also installed on the ton barrel to facilitate the loading and unloading of liquids.

[0003] Generally, the ton barrel valve is a ball valve. The structure of the ball valve generally includes an external valve body and a valve cover. Both ends of the valve body and the valve cover are respectively provided with flanges for connection, as well as an internal valve ball, valve seat, valve stem, etc. The valve body and the valve cover are connected to enclose and fix structures such as the valve ball, valve seat, and valve stem inside the valve body. In order to save space during transportation, generally, the length of the valve cover is shorter, and the length of the valve body is longer to accommodate the valve ball inside. When the ton barrel valve is horizontally connected to the ton barrel, if one end of the valve cover is connected to the ton barrel flange, the weight on one side of the valve body is heavier and there is no support, and the bolts connecting the valve body and the valve cover are subjected to greater stress. Therefore, to ensure the stability of the connection, usually the valve body is connected to the ton barrel to prevent the connection between the valve body and the valve cover from being subjected to a large inertial force due to vibration during the transportation of the ton barrel, thereby causing the bolts at different positions on the valve body and the valve cover to be subjected to uneven tensile forces and dynamic shear forces. On the other hand, the ton barrel valve needs to be frequently connected to external pipelines, and repeated disassembly and assembly easily cause wear of the connecting flanges and need to be replaced regularly. Therefore, by connecting the valve body to the ton barrel and using the valve cover to connect to the external pipeline, it is more convenient to replace the worn valve cover flange. For the above reasons, generally, the front - end flange of the valve body of the ton barrel valve is connected to the ton barrel, and the rear - end flange of the valve body is used to install the valve cover, and this installation method is the front - mounted type. On this basis, since the amount of liquid loaded in the ton barrel is large, the inertial force on the ton barrel valve due to vibration during transportation is large. Therefore, the connection points of the front - end flange of the ton barrel valve connected to the ton barrel and the connection points at the rear end of the valve body connected to the valve cover undergo periodic relative displacement, and there is a probability of leakage, forming two risk points.

[0004] In order to reduce the number of risk points of leakage caused by vibration during the connection of the ton barrel valve to the ton barrel and during transportation, a ton barrel valve for new energy is proposed. Summary of the Invention

[0005] To solve the above problems existing in the prior art, the present invention provides a ton barrel valve for new energy.

[0006] The object of the present invention can be achieved by the following technical solutions:

[0007] A ton barrel valve for a new energy source of the present invention includes a valve body and a valve cover. The valve body is provided with a rear flange for installing the valve cover. The valve cover is semi-embedded in the end face of the rear flange, so that the part of the valve cover protruding from the end face abuts against the flange opening of the ton barrel. The rear flange and the ton barrel flange lock the valve cover and the flange opening of the ton barrel to make the two sealed and connected.

[0008] Furthermore, a plurality of clamp seats are arranged on the circumferential surface of the valve cover, and a plurality of limit card slots are arranged on the end face of the rear flange. The plurality of clamp seats are respectively and correspondingly embedded in the plurality of limit card slots and are locked and fixed by bolts and nuts.

[0009] Furthermore, a first through hole penetrating the rear flange is opened in the limit card slot, a second through hole is opened in the clamp seat, and the bolt and the nut penetrate through the two through holes and are locked and matched.

[0010] Furthermore, an operation assembly is further included. The operation assembly includes a front valve seat, a valve ball and a rear valve seat. A valve cavity is formed in the valve body. The valve ball is rotatably arranged in the valve cavity. The front valve seat and the rear valve seat are respectively symmetrically arranged at the two channel openings on both sides of the valve ball. The front valve seat and the rear valve seat respectively abut against the inner wall of the valve body and the inner wall of the valve cover.

[0011] Furthermore, a first step and a second step are successively surrounded on the inner side wall of the valve body from inside to outside. A third step at the front end of the valve cover and the first step enclose an annular axial extrusion cavity. A gasket is arranged in the axial extrusion cavity. The gasket is axially extruded and stressed in the axial extrusion cavity and expands to fill the axial extrusion cavity.

[0012] Furthermore, the second step and a fourth step at the front end of the valve cover are oppositely arranged, and the second step and the fourth step abut against each other for limiting.

[0013] Furthermore, a plurality of third through holes are arranged on the rear flange. The third through holes and the first through holes are alternately arranged at intervals. The ton barrel flange and the third through holes are connected by bolts and nuts to form double fastening for the valve cover.

[0014] Furthermore, the rear valve seat is embedded in the front end of the valve cover.

[0015] Furthermore, the abutting surfaces of the front valve seat and the rear valve seat with the valve ball are arc-shaped inclined surfaces, and the rear valve seat is made of a soft sealing material.

[0016] The beneficial effects of the present invention are:

[0017] (1) Through the connection between the valve cover and the rear flange of the valve body, and then through the rear flange of the valve body and the flange of the ton barrel, a double-layer sealing structure is formed. On the one hand, it can increase the sealing strength, and on the other hand, it can reduce the leakage risk points, reducing the original two leakage risk points to one. Therefore, during the transportation of the ton barrel, the leakage points can be reduced and the troubleshooting difficulty can be lowered.

[0018] (2) After the valve cover is embedded in the rear flange, the length of the entire ton barrel valve is shortened, and the inertial force generated by vibration during transportation acting on the connecting bolts between the valve body and the valve cover is reduced.

[0019] (3) After the valve cover and the rear flange of the valve body are tightened by bolts and the rear flange and the flange of the ton barrel are tightened by bolts, the axial extrusion force of the third step of the valve cover and the first step of the valve body on the gasket will cause the gasket to expand and fill the axial extrusion cavity, making the gasket abut against all sides of the axial extrusion cavity, increasing the sealing area of the gasket. After passing through the axial extrusion cavity formed by the first step and the third step, the gasket is filled with extrusion force to fill the axial extrusion cavity, forming a filling of the radial clearance between the valve cover and the valve body, which can reduce the radial vibration between the valve cover and the valve body and provide buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the main structure of the present invention;

[0023] Figure 3 is a front view of the exploded view of the present invention;

[0024] Figure 4 is a rear view of the exploded view of the present invention;

[0025] Figure 5 is a schematic sectional view of the ton barrel valve of the present invention;

[0026] Figure 6 is Figure 5 an enlarged schematic view of part A in

[0027] Figure 7 a schematic diagram of the positions of four steps;

[0028] Legend: 1. Valve body; 101. Front flange; 102. Rear flange; 2. Valve cover; 3. Valve ball; 4. Valve seat; 5. Gasket; 6. Flange of ton barrel; 7. First step; 8. Second step; 9. Third step; 10. Fourth step. DETAILED DESCRIPTION OF THE INVENTION

[0029] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0030] As Figure 1 - Figure 7 shown, a ton barrel valve for new energy of the present invention includes a valve body 1 and a valve cover 2. The valve body 1 is provided with a rear flange 102 for installing the valve cover 2. The valve cover 2 is semi-embedded in the end face of the rear flange 102, so that the part of the valve cover 2 protruding from the end face abuts against the ton barrel flange opening. The rear flange 102 and the ton barrel flange 6 lock the valve cover 2 and the ton barrel flange opening to make the two sealed and connected; wherein the ton barrel flange opening is a convex structure on the connection section of the ton barrel flange 6; and the part of the valve cover 2 protruding from the end face of the rear flange 102 is used to replace the original rear flange opening protruding on the rear flange 102. Through the sealed connection between the ton barrel flange opening and the rear flange opening, the sealing effect can be improved;

[0031] Since the ton barrel valve needs to be frequently connected to external pipelines, repeated disassembly and assembly are likely to cause wear of the connecting flanges and require regular replacement. Therefore, by connecting the valve body 1 to the ton barrel and using the valve cover 2 to connect to external pipelines, it is more convenient to replace the worn flange of the valve cover 2. For the above reasons, generally, the front flange 101 of the valve body 1 of the ton barrel valve is connected to the ton barrel, and the rear flange 102 of the valve body 1 is used to install the valve cover 2, and this installation method is the normal installation. On this basis, since the amount of liquid loaded in the ton barrel is large, the inertia on the ton barrel valve due to vibration during transportation is large. Therefore, the connection points of the front flange 101 of the ton barrel valve connected to the ton barrel and the connection points at the rear end of the valve body 1 connected to the valve cover 2 form periodic relative displacements, and there is a probability of causing leakage, forming two risk points;

[0032] In order to reduce the number of leakage risk points after the ton barrel valve is connected to the ton barrel, the installation direction of the ton barrel valve in general cases is adjusted. Generally, the length of the valve cover 2 is short, and the length of the valve body 1 is long in order to set the valve ball 3 inside. When connecting the ton barrel valve to the ton barrel, in order to ensure the connection stability, usually one side of the valve body 1 is connected to the ton barrel to prevent the large inertial force on the connection between the valve body 1 and the valve cover 2 due to vibration during the transportation of the ton barrel, which may lead to uneven tensile force and dynamic shear force on the bolts at different positions on the valve body 1 and the valve cover 2. After adjusting the installation direction of the ton barrel valve on the ton barrel, the valve cover 2 originally attached to the valve body 1 is changed to be embedded in the valve body 1. Generally, flanges are provided at both ends of the valve body 1 and the valve cover 2. After the valve cover 2 is embedded in the valve body 1, a structure similar to a flange is provided on one side of the valve cover 2 for connecting to the rear flange 102 of the valve body 1.

[0033] After the valve cover 2 is embedded in the valve body 1 and connected, due to the connection between the valve cover 2 and the rear flange 102 of the valve body 1, and then through the connection between the rear flange 102 of the valve body 1 and the ton barrel flange 6, a double-layer sealing structure is formed. On the one hand, it can increase the sealing strength, and on the other hand, it can reduce the leakage risk points, reducing the original two leakage risk points to one. Then, during the transportation of the ton barrel, the leakage points can be reduced and the troubleshooting difficulty can be lowered. At the same time, the connection seam between the valve body 1 and the valve cover 2 is clamped between the rear flange 102 of the valve body 1 and the ton barrel flange 6, and the bolts will not be subjected to uneven forces due to vibration during transportation. Moreover, after the valve cover 2 is embedded in the rear flange 102, the length of the entire ton barrel valve is shortened, and the force exerted on the connection bolts of the valve body 1 and the valve cover 2 due to inertia generated by vibration during transportation is reduced.

[0034] Specifically, after the ton barrel valve is flipped and connected to the ton barrel flange 6, the nuts of the bolts on the valve cover 2 and the rear flange 102 will protrude on the valve cover 2, resulting in the inability to connect the rear flange 102 on the valve body 1 to the ton barrel flange 6. Therefore, in one embodiment, a plurality of clamp seats are provided on the circumferential surface of the valve cover 2, and a plurality of limit card slots are provided on the end face of the rear flange 102. The plurality of clamp seats are respectively embedded in the plurality of limit card slots and locked and fixed by bolts and nuts; by embedding the valve cover 2 and the clamp seats on the rear flange 102, the drop between the rear end of the valve cover 2 and the rear flange 102 is reduced, facilitating the connection between the rear flange 102 and the ton barrel flange 6 by bolts. A total of 6 clamp seats are provided on the valve cover 2, and each clamp seat is on the outer circumferential surface of the valve cover 2. The clamp seat includes a bottom base and a clamp structure on the base. When the valve cover 2 is installed on the valve body 1, the clamp seat is limited by the limit card slot, and the base of the clamp seat fits with the first through hole of the rear flange 102. Then, the bolt is passed through the clamp seat and the first through hole, and the outer side wall of the nut of the bolt abuts and cooperates with the inner side wall of the clamp structure of the clamp seat. A second through hole is formed on the clamp structure of the clamp seat, and several surfaces in the second through hole fit with several surfaces of the nut after the bolt is installed. After the bolt extends out from the other end of the rear flange 102, it is tightened by a nut, so that the nut of the bolt will not rotate relative to each other within the clamp structure. During the horizontal and vertical vibrations generated simultaneously during the transportation of the ton barrel and the ton barrel valve, the loosening of the bolt and the nut can be avoided, thereby avoiding the leakage of the ton barrel valve.

[0035] In the prior art, threads are directly tapped on the valve body 1 for connection, and there is a probability that the threads will seize. After seizing, the bolt cannot be directly removed, and it is even difficult to directly saw it off. Only the valve can be scrapped or the whole can be repaired; after optimization, the bolt is not connected to the valve body 1, but to the nut on the back of the rear flange 102. Even if the threads seize, only the nut needs to be sawed off to remove the bolt, avoiding the situation of valve scrapping and repair, and greatly saving the maintenance cost.

[0036] In one embodiment, it further includes an operating component, which includes a front valve seat 4, a valve ball 3 and a rear valve seat 4. A valve cavity is formed in the valve body 1. The valve ball 3 is rotatably arranged in the valve cavity. The front valve seat 4 and the rear valve seat 4 are symmetrically arranged at the two side orifices of the valve ball 3 respectively. The front valve seat 4 and the rear valve seat 4 are respectively abutted against the inner wall of the valve body 1 and the inner wall of the valve cover 2. The valve ball 3 is clamped between the front valve seat 4 and the rear valve seat 4, and a sealing effect is formed between the valve seat 4 and the valve ball 3 under the extrusion of the external valve cover 2. A valve rod penetrates through the side of the valve body 1, and the bottom of the valve rod is connected to the valve ball 3. An anti-flying-out boss is designed between the valve rod and the valve body 1, which can ensure that the valve rod will not be ejected from the valve under pressure, causing an accident.

[0037] During the transportation of the ton barrel, due to external vibrations (such as vehicle bumps and sea wave impacts), a dynamic shear force is generated between the valve body 1 and the valve cover 2 of the ton barrel valve on the ton barrel. Its essence is that mechanical vibration energy is transmitted to the valve through inertial action, resulting in a periodic relative displacement between the two components. When multiple ton barrels are transported in combination, since the ton barrels are filled with liquid inside, the transportation of the ton barrels will cause the liquid inside to slosh, and then cause the ton barrels to collide with each other as the liquid inside sloshes. Therefore, the ton barrels will not only vibrate in the vertical direction due to transportation, but also vibrate in the horizontal direction due to the collision of the ton barrels with each other, and the forces in both directions act simultaneously. There is a small mating gap between the valve body 1 and the valve cover 2, which will cause wear and looseness under the action of multi-directional vibrations for a long time, and other components inside the ton barrel valve will also displace when the valve body 1 and the valve cover 2 vibrate, resulting in leakage of the ton barrel valve. To avoid this problem, on the basis of the above embodiment, further, a first step 7 and a second step 8 are successively formed around the inner side wall of the valve body 1 from inside to outside. The third step 9 at the front end of the valve cover 2 and the first step 7 enclose an annular axial extrusion cavity. A gasket 5 is arranged in the axial extrusion cavity. The gasket 5 is axially extruded and stressed in the axial extrusion cavity and expands to fill the axial extrusion cavity to form a viscous damping.

[0038] The first step 7 and the third step 9 do not directly contact each other, but maintain a certain distance. After the valve cover 2 is connected to the valve body 1 and tightened by bolts, the third step 9 of the valve cover 2 and the first step 7 of the valve body 1 will exert an extrusion force on the gasket 5.

[0039] Since the washer 5 is mainly made of rubber, and rubber has the characteristics of both elastic solids and viscous fluids. The elastic property enables rubber to deform under the action of external forces and partially return to its original state after the external forces are removed (energy storage property); while the viscous property causes rubber to dissipate energy due to the internal friction between molecular chains during the deformation process (energy dissipation property). This viscoelastic property allows rubber to convert mechanical energy into heat energy through the hysteresis effect and internal friction under dynamic loads (such as vibration), thereby reducing the vibration force. When the washer 5 is squeezed and exhibits fluid-like characteristics under high-frequency vibration, the relative movement between molecular chains generates viscous resistance; this resistance is proportional to the deformation rate and further dissipates energy. During the energy dissipation process of the washer 5 during extrusion, when an external force acts on the washer 5 in the extrusion deformation stage, it causes compressive deformation; the rubber molecular chains are stretched and bent, storing elastic potential energy. In the energy dissipation stage, the internal friction and viscous flow between molecular chains convert part of the elastic potential energy into heat energy; the hysteresis effect results in different loading and unloading paths, further dissipating energy. In the recovery stage, after the external force is removed, the washer 5 partially returns to its original state, but part of the energy has been dissipated as heat energy; the remaining elastic potential energy is released in the form of vibration, but the amplitude is significantly reduced due to the damping effect.

[0040] Based on the above principle, when the ton barrel valve is subjected to vibration forces in all directions, the vibration transmission of the force will cause extrusion on the washer 5 through the valve body 1 and the valve cover 2, enabling it to exert its viscous damping characteristics, greatly reducing the vibration amplitude, and ensuring the stability of the inside of the valve body 1 and the connection between the valve body 1 and the valve cover 2 as well as the stability of the installation position. Due to the viscous damping of the washer 5 on the valve cover 2, the extrusion force of the valve cover 2 on the valve seat 4 is more uniform, effectively preventing leakage of the ton barrel valve.

[0041] Generally, the washer 5 of a valve is arranged on the axial abutting surface between the valve body 1 and the valve cover 2, so it can only provide axial buffering and cannot provide radial buffering for the valve body 1 and the valve cover 2 that are sleeved with each other. In this embodiment, after the valve cover 2 and the rear flange 102 of the valve body 1 are tightened by bolts and the rear flange 102 and the ton barrel flange 6 are tightened by bolts, the axial extrusion force of the third step 9 of the valve cover 2 and the first step 7 of the valve body 1 on the washer 5 will cause the washer 5 to expand and fill the axial extrusion cavity, making the washer 5 abut against all sides of the axial extrusion cavity, increasing the sealing area of the washer 5. After passing through the axial extrusion cavity formed by the first step 7 and the third step 9, the washer 5 is filled with extrusion force to fill the axial extrusion cavity, forming a filling of the radial fitting gap between the valve cover 2 and the valve body 1, which can reduce the radial vibration of the valve cover 2 and the valve body 1 and provide buffering.

[0042] It is worth mentioning that the gasket 5 between the valve body 1 and the valve cover 2 can also prevent the bolts and nuts from loosening. The rubber gasket 5 can absorb part of the vibration energy, reduce the vibration transmitted to the bolts and nuts, reduce the risk of loosening, and the vibration will cause the pre-tightening force to gradually lose. The rubber gasket 5 can slow down the loss of the pre-tightening force and maintain the stability of the connection.

[0043] Furthermore, the second step 8 is disposed opposite to the fourth step 10 at the front end of the valve cover 2, and the second step 8 and the fourth step 10 are in contact with each other for limiting; the second step 8 and the fourth step 10 are metal positioning structures inside the valve body 1 and the valve cover 2. Quantitative design has been carried out on the compression amount between the valve seat 4 and the valve ball 3 and the connection compression amount of the valve cover 2. When vibrating or being pressed to the limit position, the second step 8 and the fourth step 10 will be in contact with each other for limiting, effectively ensuring the valve sealing effect and at the same time being able to better control the valve torque.

[0044] Since the valve cover 2 is at one end far from the ton barrel flange 6 in the prior art, the connection and fastening method thereof is single. In this embodiment, a plurality of third through holes are provided on the rear end flange 102, and the third through holes and the first through holes are alternately arranged at intervals. The ton barrel flange 6 and the third through holes are connected to the valve cover 2 by bolts and nuts to form a double-layer fastening; that is, after the valve cover 2 is connected to the first through hole of the rear end flange 102 by bolts, the ton barrel flange 6 on the ton barrel is abutted against the rear end of the valve cover 2, and again, bolts are passed through the ton barrel flange 6 and the third through hole of the rear end flange 102 of the valve body 1, and then connected to the bolts by nuts. The valve cover 2 is connected to the valve body 1 by a double fastening method. The ton barrel flange 6 clamps the valve cover 2 through bolts and the rear end flange 102 of the valve body 1 to form a "sandwich" structure, restricting the lateral displacement and torsion of the middle valve cover 2. Improve the overall bending stiffness and reduce the risk of flange surface separation caused by vibration; at the same time, it can also suppress the bolt pre-tightening force fluctuation caused by high-frequency micro-amplitude vibration (such as > 100 Hz). And multiple connections are respectively formed by connecting the ton barrel flange 6 and the rear end flange 102 of the valve body 1 and the connection between the valve cover 2 and the rear end flange 102 of the valve body 1, so that the load distribution is more uniform and the shear stress of a single bolt is reduced.

[0045] Since the valve cover 2 is connected and fastened to the valve body 1 by double bolts in the above embodiment, it may cause the fastening force of the bolt connection between the ton barrel flange 6 and the rear end flange 102 of the valve body 1 to be too large during the installation process, while the fastening force between the valve cover 2 and the rear end flange 102 of the valve body 1 is small, resulting in the connection bolts between the valve cover 2 and the rear end flange 102 being more likely to loosen. Therefore, a gradient pre-tightening force needs to be formed between the inner bolts on the valve cover 2 and the rear end flange 102 and the outer bolts on the ton barrel flange 6 and the rear end flange 102: inner bolts: main seal, higher pre-tightening force; outer bolts: auxiliary pressing, lower pre-tightening force.

[0046] In order to avoid bolt loosening while tightening the inner bolts and outer bolts to the above-mentioned connection strength, it is necessary to tighten the inner bolts on the valve cover 2 and the rear flange 102 in multiple steps. That is, during connection, first pre-tighten the inner bolts and pause when they are tightened to 50% of the designed tightening force. Then, tighten the outer bolts on the ton barrel flange 6 and the rear flange 102 at one time. Then, tighten the inner bolts again until the designed value is reached. Since the nuts connected to the inner bolts and outer bolts are all exposed, the inner bolts can be tightened in multiple steps.

[0047] Furthermore, the contact surface of the ton barrel flange 6 on the valve cover 2 protrudes from the plane of the rear flange 102. In order to prevent the valve cover 2 from being recessed into the valve body 1 after being connected to the valve body 1, resulting in insufficient connection sealing strength between the ton barrel flange 6 and the ton barrel valve, the valve cover 2 protrudes from the plane of the rear flange 102, so that when the ton barrel flange 6 is connected to the ton barrel valve, the rear end of the valve cover 2 directly abuts against the ton barrel flange 6, which can effectively extend the leakage path and reduce the leakage rate and leakage risk.

[0048] Furthermore, the rear valve seat 4 is embedded in the front end of the valve cover 2. The contact surfaces of the front valve seat 4 and the rear valve seat 4 with the valve ball 3 are arc-shaped inclined surfaces, and the rear valve seat 4 is made of soft sealing material. Since the rear valve seat 4 is embedded in the front end of the valve cover 2, and the valve cover 2 will form an inward compression action under the action of external vibration and extrusion. In order to prevent this compression action from causing the displacement of the valve ball 3 and resulting in leakage, a certain amount of compression is required for the rear valve seat 4. Therefore, in this embodiment, the rear valve seat 4 is made of soft sealing material, which can expand and contract with the valve cover 2 during the telescopic movement of the valve cover 2. At the same time, the soft sealing material of the rear valve seat 4 can also improve the sealing effect with the valve cover 2.

[0049] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A ton barrel valve for new energy, characterized in that: It includes a valve body and a valve cover. The valve body is provided with a rear flange for installing the valve cover. The valve cover is semi-embedded in the end face of the rear flange, so that the part of the valve cover protruding from the end face abuts against the flange opening of the ton barrel. The rear flange and the ton barrel flange lock the valve cover and the flange opening of the ton barrel to make the two sealed and connected.

2. The ton barrel valve for new energy according to claim 1, wherein: A number of clamp seats are arranged on the circumferential surface of the valve cover. A number of limit card slots are arranged on the end face of the rear flange. A number of clamp seats are respectively and correspondingly embedded in a number of limit card slots and are locked and fixed by bolts and nuts.

3. The ton barrel valve for new energy according to claim 2, characterized in that: A first through hole penetrating the rear flange is opened in the limit card slot. A second through hole is opened in the clamp seat. The bolt and the nut penetrate through the two through holes and are locked and matched.

4. The ton barrel valve for new energy according to claim 3, wherein: It further includes an operation component. The operation component includes a front valve seat, a valve ball and a rear valve seat. A valve cavity is formed in the valve body. The valve ball is rotatably arranged in the valve cavity. The front valve seat and the rear valve seat are respectively symmetrically arranged at the two side channel openings of the valve ball. The front valve seat and the rear valve seat respectively abut against the inner wall of the valve body and the inner wall of the valve cover.

5. The ton barrel valve for new energy according to claim 1, characterized in that: A first step and a second step are successively and circumferentially arranged on the inner side wall of the valve body from inside to outside. The third step at the front end of the valve cover and the first step enclose an annular axial extrusion cavity. A gasket is arranged in the axial extrusion cavity. The gasket is axially extruded and stressed in the axial extrusion cavity and expands to fill the axial extrusion cavity.

6. The ton barrel valve for new energy according to claim 5, characterized in that: The second step is arranged opposite to the fourth step at the front end of the valve cover. The second step and the fourth step abut against each other for limiting.

7. The ton barrel valve for new energy according to claim 3, characterized in that: A number of third through holes are arranged on the rear flange. The third through holes and the first through holes are arranged at intervals alternately. The ton barrel flange and the third through holes are connected by bolts and nuts to form double-layer fastening for the valve cover.

8. A ton barrel valve for new energy according to claim 4, characterized in that: The rear valve seat is embedded in the front end of the valve cover.

9. The ton barrel valve for new energy according to claim 4, wherein: The abutting surfaces of the front valve seat and the rear valve seat with the valve ball are arc-shaped inclined surfaces. The rear valve seat is made of soft sealing material.

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