A severe process valve

Abstract

The present invention provides a severe working condition process valve, which relates to the field of valve technology, and solves the hidden danger of valve leakage due to excessive wear or temperature alternation in the existing actual application process, thereby causing unreliable sealing and shortening the service life of the valve. Furthermore, it is impossible to prevent particulate media from entering the stuffing box, which in turn affects the sealing of the stuffing. It is impossible to avoid lateral deviation of the valve stem caused by the actuator during operation, which may cause deformation of the sealing stuffing and uneven pressing force causing sealing leakage. The valve comprises a conveying mechanism, which is installed on the inner side of the circulation mechanism. In the present invention, since a dynamic spring is used inside the valve body to provide a continuous and stable pressing force, the hidden danger of leakage due to excessive wear or temperature alternation is eliminated, making the sealing more reliable and the service life longer.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves, and more specifically, particularly relates to a severe working condition process valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems and have functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems.

[0003] For example, the application number is CN202010356395.4. The present invention discloses a rectifying device for the outflow of a process valve. A rectifying device is installed at the outlet of the process valve. The rectifying device includes, from upstream to downstream, an inlet component, a center component and an outlet component. When the fluid is transported in a pipeline, the opening regulation of the process valve will cause non-uniform eccentric turbulent flow near its outlet, accompanied by the generation of vortices, which seriously affects the stability of its outlet flow. The device can converge, disperse, eliminate vortices and integrate the outlet turbulent flow caused by the opening regulation of the process valve, effectively improve the turbulent flow, achieve an effective rectification effect, and thus improve the stability of the outlet flow of the process valve. In addition, the present invention can be used in conjunction with a pipeline fluid measuring device, which is beneficial to the stable flow signal acquisition of the pipeline fluid measuring device and improves the measurement accuracy.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that although the above equipment can be rectified when used, there is a hidden danger of leakage due to excessive wear or temperature alternation in the actual application process, which will lead to unreliable sealing and shorten the service life of the valve. In addition, it is impossible to prevent the particulate medium from entering the stuffing box, which will affect the sealing of the packing. It is impossible to avoid lateral deviation of the valve stem caused by the actuator during operation, which will cause deformation of the sealing packing and uneven clamping force, resulting in sealing leakage. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a severe working condition process valve to solve the hidden danger of leakage of the existing valve due to excessive wear or temperature alternation conditions in the actual application process, which will lead to unreliable sealing and shorten the service life of the valve. Furthermore, it is impossible to prevent particulate media from entering the stuffing box, which will affect the sealing of the packing. It is impossible to avoid lateral deviation of the valve stem caused by the actuator during operation, which will cause deformation of the sealing packing and uneven clamping force to cause sealing leakage.

[0006] The purpose and effect of a severe working condition process valve of the present invention are achieved by the following specific technical means:

[0007] A severe working condition process valve comprises a conveying mechanism, an auxiliary mechanism and an anti-impact mechanism, wherein the conveying mechanism is installed at the inner side of the circulation mechanism; the auxiliary mechanism is installed at the inner bottom side of the circulation mechanism; the anti-impact mechanism is installed at the left side of the circulation mechanism, and a sealing mechanism is screwed on the left side of the anti-impact mechanism; the sealing mechanism comprises a tube body, a top seat and bolts, wherein the bolts are arranged at four locations, and the four bolts are arranged in a circular array to screw the top seat to the left side of the tube body, and the tube body is fixedly connected to the left side of the anti-impact mechanism in the installed state.

[0008] Further, the circulation mechanism includes a valve body, a guide port A, a guide port B and a substrate. Circular through holes are opened on both upper and lower sides of the outer peripheral surface of the valve body, and the through hole on the lower side is larger than the through hole on the upper side. The guide port A and the guide port B are respectively fixedly connected to the outer positions of the upper and lower circular holes opened on the outer peripheral surface of the valve body, and the guide port A and the guide port B are designed with an asymmetric height difference structure. The inner wall flow channel of the valve body is made of high temperature resistant and wear-resistant material, and the substrate is screwed to the right side of the inner wall of the valve body by bolts;

[0009] Furthermore, the conveying mechanism includes a gate valve, a valve stem and a valve plate, the valve stem is provided at two locations, and the two valve stems are respectively installed at upper and lower positions on the outer peripheral surface of the gate valve, and the valve plate is fixedly connected to the top end surface of the valve plug located at the upper side;

[0010] Furthermore, the conveying mechanism also includes a valve plug and a flow tube. The valve plug is provided at two locations, and the two valve plugs are respectively fixedly connected to the top end surface and the bottom end surface of the two valve stems. The flow tube is installed at the left end surface of the gate valve. The gate valve is installed at the inner side of the valve body in the installed state.

[0011] Further, the auxiliary mechanism includes an auxiliary mechanism, a handle, a pump and a splitter head, the handle is designed in an L-shaped structure, and a driving shaft perpendicular to the handle is installed on the right side of the handle, and the driving shaft is connected to the switch of the pump, the splitter head is designed in a cylindrical structure, and the splitter head is installed at the top position of the pump, and the diameter of the splitter head is consistent with the diameter of the pump;

[0012] Furthermore, the auxiliary mechanism also includes an air hole and a block, the air hole is designed as a rectangular structure, and the four air holes are opened longitudinally, and the four air holes are opened in a circular array on the outer peripheral surface of the split head, the block is a split structure design that is a whole cylindrical shape and is equally divided into four pieces, and the inner sides of the four blocks are opened with arc grooves, which together form a circular hole, and the four blocks are installed in a circular array on the outer side of the split head and match the air holes;

[0013] Furthermore, the anti-impact mechanism includes a cover plate, a base, a dynamic spring and a rod assembly. The base is inserted into the center position of the left end surface of the cover plate, and a dynamic spring is also installed on the left side of the base. A circular plate is also installed on the left side of the dynamic spring, and two rod assemblies of the same size are also installed on the left side of the circular plate. In the installed state, the cover plate is screwed to the left side of the valve body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the present invention, since the guide ports A and B are designed with an asymmetric height difference structure, the inner wall flow channel of the valve body is made of high temperature resistant and wear-resistant materials, so the valve can withstand high temperature working conditions of ℃, .Mpa high pressure sealing, and improve the erosion and wear resistance of the valve body, and an auxiliary mechanism is also installed inside the guide port B, wherein the handle is designed with an L-shaped structure, and a driving shaft perpendicular to the handle is installed on the right side of the handle, and the driving shaft is connected to the switch of the pump air machine, the splitter and the closing head is designed with a cylindrical structure, and the splitter and the closing head is installed at the top position of the pump air machine. Therefore, when the valve body needs to be replaced and repaired, the pump air machine can be opened by turning the handle through the driving shaft, and then the block can be pneumatically expanded through the air hole opened on the splitter and the closing head to block the guide port B, thereby preventing the problem of difficulty in replacement due to replacement of the valve body and its components with water.

[0016] On the other hand, since a dynamic spring is used inside the valve body to provide a continuous and stable clamping force, the hidden dangers of leakage due to excessive wear or temperature alternation are eliminated, making the seal more reliable and the service life longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the enlarged structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the main structure of the present invention in a half-section state.

[0019] Figure 3 The present invention Figure 1 Enlarged structural diagram at A in the middle.

[0020] Figure 4 The present invention Figure 1 Enlarged structural diagram at B in the middle.

[0021] Figure 5 The present invention Figure 1 Enlarged structural diagram at point C in the middle.

[0022] Figure 6 The present invention Figure 1 Enlarged structural diagram at D in the middle.

[0023] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0024] 1. Circulation mechanism; 101. Valve body; 102. Port A; 103. Port B; 104. Base plate; 2. Conveying mechanism; 201. Gate valve; 202. Valve stem; 203. Valve plate; 204. Valve plug; 205. Flow tube; 3. Auxiliary mechanism; 301. Handle; 302. Pump; 303. Splitting and closing head; 304. Air hole; 305. Block; 4. Anti-impact mechanism; 401. Cover plate; 402. Base; 403. Dynamic spring; 404. Rod assembly; 5. Sealing mechanism; 501. Tube body; 502. Top seat; 503. Bolt. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example:

[0029] As attached Figure 1 To Attachment Figure 6 As shown:

[0030] The present invention provides a severe working condition process valve, comprising: a conveying mechanism 2, an auxiliary mechanism 3 and an anti-impact mechanism 4, the conveying mechanism 2 is installed at the inner side of the circulation mechanism 1; the auxiliary mechanism 3 is installed at the inner bottom side of the circulation mechanism 1; the anti-impact mechanism 4 is installed at the left side of the circulation mechanism 1, and a sealing mechanism 5 is screwed on the left side of the anti-impact mechanism 4; the sealing mechanism 5 comprises a tube body 501, a top seat 502 and bolts 503, the bolts 503 are arranged at four places, and the four bolts 503 are arranged in a ring array to screw the top seat 502 to the left side of the tube body 501, and the tube body 501 is fixedly connected to the left side of the anti-impact mechanism 4 in the installed state.

[0031] Among them, the circulation mechanism 1 includes a valve body 101, a guide port A102, a guide port B103 and a base plate 104. Circular through holes are provided on both upper and lower sides of the outer peripheral surface of the valve body 101, and the through hole on the lower side is larger than the through hole on the upper side. The guide port A102 and the guide port B103 are respectively fixedly connected to the outer sides of the upper and lower circular holes provided on the outer peripheral surface of the valve body 101, and the guide port A102 and the guide port B103 are designed with an asymmetric height difference structure. The inner wall of the valve body 101 is made of high temperature resistant and wear-resistant material. The base plate 104 is screwed to the right side of the inner wall of the valve body 101 by bolts 503. Since a dynamic spring 403 is used inside the valve body 101 to provide a continuous and stable clamping force, the hidden danger of leakage due to excessive wear or temperature alternation is eliminated, making the seal more reliable and having a longer service life.

[0032] Among them, the conveying mechanism 2 includes a gate valve 201, a valve stem 202 and a valve plate 203. The valve stem 202 is provided at two locations, and the two valve stems 202 are respectively installed at the upper and lower sides of the outer peripheral surface of the gate valve 201, and the valve plate 203 is fixedly connected to the top surface position of the valve plug 204 located on the upper side.

[0033] Among them, the conveying mechanism 2 also includes a valve plug 204 and a flow tube 205. The valve plug 204 is provided at two locations, and the two valve plugs 204 are respectively fixedly connected to the top end surface and the bottom end surface of the two valve stems 202. The flow tube 205 is installed at the left end surface of the gate valve 201. In the installed state, the gate valve 201 is installed at the inner side of the valve body 101.

[0034] Among them, the auxiliary mechanism 3 includes an auxiliary mechanism 3, a handle 301, a pumping machine 302 and a splitting and combining head 303. The handle 301 is designed as an L-shaped structure, and a driving shaft perpendicular to the handle 301 is installed on the right side of the handle, and the driving shaft is connected to the switch of the pumping machine 302. The splitting and combining head 303 is designed as a cylindrical structure, and the splitting and combining head 303 is installed at the top position of the pumping machine 302, and the diameter of the splitting and combining head 303 is consistent with the diameter of the pumping machine 302.

[0035] Among them, the auxiliary mechanism 3 also includes an air hole 304 and a block 305. The air hole 304 is designed as a rectangular structure, and the four air holes 304 are all opened longitudinally, and the four air holes 304 are opened in a circular array on the outer peripheral surface of the split head 303. The block 305 is a split structure design that is a whole cylinder divided into four pieces, and the inner sides of the four block blocks 305 are all provided with arc grooves, which together form a circular hole, and the four block blocks 305 are installed in a circular array on the outside of the split head 303 and match the air holes 304.

[0036] Among them, the anti-impact mechanism 4 includes a cover plate 401, a base 402, a dynamic spring 403 and a rod assembly 404. The base 402 is inserted into the center position of the left end surface of the cover plate 401, and the dynamic spring 403 is also installed on the left side of the base 402, and a circular plate is also installed on the left side of the dynamic spring 403, and two rod assemblies 404 of the same size are also installed on the left side of the circular plate. In the installed state, the cover plate 401 is screwed to the left side of the valve body 101.

[0037] When in use: first install the valve body 101 in the circulation mechanism 1 at a suitable position of the water pipe, and because the outer circumference of the valve body 101 in the circulation mechanism 1 is provided with circular through holes on both upper and lower sides, and the through hole on the lower side is larger than the through hole on the upper side, and the guide port A102 and the guide port B103 are respectively fixedly connected to the outer positions of the upper and lower circular holes opened on the outer circumference of the valve body 101, and the guide port A102 and the guide port B103 are designed with an asymmetric height difference structure, and the inner wall flow channel of the valve body 101 is made of high temperature resistant and wear-resistant materials, so the valve can withstand 400°C high temperature working conditions, 1.0Mpa high pressure sealing, and improves the erosion and wear resistance of the valve body 101, and at the guide port B An auxiliary mechanism 3 is also installed inside 103. The handle 301 is designed as an L-shaped structure, and a driving shaft perpendicular to it is installed on the right side of the handle 301, and the driving shaft is connected to the switch of the pump air machine 302. The separation and combination head 303 is designed as a cylindrical structure, and the separation and combination head 303 is installed at the top position of the pump air machine 302. Therefore, when the valve body 101 needs to be replaced and repaired, the pump air machine 302 can be opened by turning the handle 301 through the driving shaft, and then the block 305 can be pneumatically expanded through the air hole 304 opened on the separation and combination head 303 to block the guide port B103, thereby preventing the problem of difficulty in replacement due to replacement of the valve body 101 and its components with water;

[0038] On the other hand, a base 402 is inserted into the center position of the left end face of the cover plate 401 in the anti-impact mechanism 4, and a dynamic spring 403 is installed on the left side of the base 402, and a circular plate is installed on the left side of the dynamic spring 403, and two group rods 404 of the same size are installed on the left side of the circular plate. Since the dynamic spring 403 is used inside the valve body 101 to provide a continuous and stable clamping force, the hidden dangers of leakage due to excessive wear or temperature alternation conditions are eliminated, making the seal more reliable and the service life longer.

[0039] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A severe working condition process valve, characterized by: The invention comprises a conveying mechanism (2), an auxiliary mechanism (3) and an anti-impact mechanism (4), wherein the conveying mechanism (2) is installed at an inner side of the circulation mechanism (1); the auxiliary mechanism (3) is installed at an inner bottom side of the circulation mechanism (1); the anti-impact mechanism (4) is installed at a left side of the circulation mechanism (1), and a sealing mechanism (5) is screwed to the left side of the anti-impact mechanism (4); the sealing mechanism (5) comprises a tube body (501), a top seat (502) and bolts (503), wherein the bolts (503) are arranged at four locations, and the four bolts (503) are screwed to the top seat (502) at the left side of the tube body (501) in a circular array, and the tube body (501) is fixedly connected to the left side of the anti-impact mechanism (4) in the installed state; The circulation mechanism (1) comprises a valve body (101), a guide port A (102), a guide port B (103) and a base plate (104); the outer circumference of the valve body (101) is provided with circular through holes on both upper and lower sides, and the through hole on the lower side is larger than the through hole on the upper side; the guide port A (102) and the guide port B (103) are respectively fixedly connected to the outer sides of the upper and lower circular holes on the outer circumference of the valve body (101); the guide port A (102) and the guide port B (103) are designed with an asymmetric height difference structure; the inner wall flow channel of the valve body (101) is made of high temperature resistant and wear-resistant material; the base plate (104) is screwed to the right side of the inner wall of the valve body (101) by bolts (503); The conveying mechanism (2) comprises a gate valve (201), a valve stem (202) and a valve plate (203); the valve stem (202) is provided at two locations, and the two valve stems (202) are respectively installed at upper and lower positions of the outer peripheral surface of the gate valve (201); and the valve plate (203) is fixedly connected to the top end surface of the valve plug (204) located at the upper side; The auxiliary mechanism (3) comprises an auxiliary mechanism (3), a handle (301), an air pump (302) and a splitter head (303); the handle (301) is designed as an L-shaped structure, and a driving shaft perpendicular to the handle (301) is installed on the right side of the handle, and the driving shaft is connected to the switch of the air pump (302); the splitter head (303) is designed as a cylindrical structure, and the splitter head (303) is installed at the top position of the air pump (302), and the diameter of the splitter head (303) is consistent with the diameter of the air pump (302); The anti-impact mechanism (4) comprises a cover plate (401), a base (402), a dynamic spring (403) and a rod assembly (404); the base (402) is plugged into the center of the left end surface of the cover plate (401), and the dynamic spring (403) is also installed on the left side of the base (402); a circular plate is also installed on the left side of the dynamic spring (403), and two rod assemblies (404) of the same size are also installed on the left side of the circular plate; in the installed state, the cover plate (401) is screwed to the left side of the valve body (101).

2. A severe process valve as claimed in claim 1, characterized in that: The conveying mechanism (2) further comprises a valve plug (204) and a flow tube (205). The valve plug (204) is provided at two locations, and the two valve plugs (204) are respectively fixedly connected to the top end surface and the bottom end surface of the two valve stems (202). The flow tube (205) is installed at the left end surface of the gate valve (201). In the installed state, the gate valve (201) is installed at the inner side of the valve body (101).

3. A severe process valve as claimed in claim 1, characterized in that: The auxiliary mechanism (3) further comprises an air hole (304) and a block (305); the air hole (304) is designed as a rectangular structure, and the four air holes (304) are all opened longitudinally, and the four air holes (304) are opened in a ring array on the outer peripheral surface of the split head (303); the block (305) is designed as a split structure in which a whole cylindrical shape is equally divided into four pieces, and the inner sides of the four block (305) are all opened with arc grooves, which together form a circular hole, and the four block (305) are installed in a ring array on the outer side of the split head (303) and match the air holes (304).

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