Replacement of valve pressure test dummy

Abstract

The present invention relates to the technical field of connecting valves, and discloses a replacement valve pressure test dummy, including a connecting pipe, a connecting assembly is arranged on the outside of the connecting pipe, and a splicing mechanism is arranged on the outer surface of the connecting pipe and on the side close to the connecting assembly. The replacement valve pressure test dummy, by setting the connecting assembly, fits the necked butt welding flange and the opposite side of the flat welding flange together during the valve installation process, then puts a gasket between them, and twists the bolt to fix the screw, and by setting an external threaded hose, when installing the valve, only the external threaded hose needs to be twisted to lose the connection of the inner and outer pipes twisted into the flat welding flange, and a structure that can be quickly assembled is adopted, so that the replacement valve pressure test dummy can be used for pressure testing of different pipeline systems, and has the advantages of being easy to carry and disassemble, and can be reused and used in different chemical projects.

Description

Technical Field

[0001] The invention relates to the technical field of connecting valves, in particular to a dummy component for replacing a valve pressure test. Background Art

[0002] Pressure test dummies are commonly used workpieces to replace valves in light industry, chemical industry, petrochemical industry, coal chemical industry and marine engineering industries. Every manufacturer will encounter the situation that the customer's valves or the valves purchased by the manufacturer themselves do not arrive at the factory during the equipment process. In order to meet the deadline, it is necessary to install the pressure pipe or skid to install the valve for pressure test according to the plan, and reserve the size and position of the valve in advance.

[0003] In the prior art, if the pressure test valve is not delivered to the factory, it will affect the delivery time. The traditional single fixed type is used as a pipeline pressure test component, which is relatively bulky and cannot be reused. It can only be used for specific projects. The pressure test of a new project needs to be remade, which has high production costs, wastes materials and labor, and has a long cycle. It often takes two people to complete the installation at the same time, and the disassembly needs to start from the pipeline flange, which is time-consuming. It is very difficult to adjust the length locally. Therefore, it is proposed to replace the valve pressure test dummy to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a replacement for the valve pressure test dummy, which has the advantages of convenient installation, disassembly and reuse, and solves the problems of the traditional single fixed type, which is used as a pipeline pressure test component, is relatively bulky, cannot be reused, and can only be applied to specific projects. The pressure test of new projects has to be remade, with high production costs, waste of materials and labor, and a long cycle. The installation often requires two people to complete it at the same time, and the disassembly needs to start from the pipeline flange, which is time-consuming, and it is very difficult to adjust the length locally.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of convenient installation, disassembly and reuse, the present invention provides the following technical solution: replacing the valve pressure test dummy, comprising a connecting pipe, the outer side of which is provided with a connecting assembly, and the outer surface of the connecting pipe and the side close to the connecting assembly is provided with a splicing mechanism;

[0008] The connection assembly includes a necked butt-welding flange located on the outer surface of the connecting pipe, a flat welding flange is fixedly installed on the right side of the necked butt-welding flange, an internally threaded pipe is fixedly installed on the right side of the flat welding flange, a screw threadedly connected between the necked butt-welding flange and the flat welding flange, and a gasket is fixedly installed at the connection between the necked butt-welding flange and the flat welding flange;

[0009] The splicing mechanism includes an externally threaded hose located on the right side of the internally threaded pipe, a mounting sleeve is fixedly installed on the outer surface of the flat welding flange, support rods are movably installed on the top and bottom of the mounting sleeve, and blocks are fixedly installed on the opposite sides of the two support rods, a connecting shaft is fixedly installed on the top and bottom of the mounting sleeve, a return spring is fixedly installed between the left end of the connecting shaft and the mounting sleeve, a sliding groove is opened on the right side of the mounting sleeve, and the right side of the sliding groove is slidably connected to a driving wheel, and rotating blocks arranged at equal distances are fixedly installed on the outer surface of the driving wheel, and driving teeth arranged at equal distances are fixedly installed on the inner wall of the driving wheel and the outer surface of the externally threaded hose.

[0010] Preferably, the left and right ends of the screw rod are threadedly connected with bolts, and the opposite sides of the necked butt welding flange and the flat welding flange fit each other.

[0011] Preferably, the gasket is a rubber gasket, and the left end of the external threaded hose is inserted into the interior of the flat welding flange and is threadedly connected thereto.

[0012] Preferably, the right end of the support rod is located on the outer surface of the external threaded hose, and the top and bottom of the external threaded hose are both provided with a card slot, and the end of the card block away from the support rod is carded into the inside of the card slot.

[0013] Preferably, the left end of the support rod is movably connected to the connecting shaft, and the driving wheel is sleeved on the outside of the external threaded hose.

[0014] Preferably, the driving teeth inside the driving wheel and the driving teeth on the outer surface of the externally threaded hose are meshed with each other, and the number of teeth of the driving teeth inside the driving wheel is less than the number of teeth of the externally threaded hose.

[0015] Preferably, the support rod is located outside the driving wheel, and the left end of the driving wheel is clamped inside the slide groove.

[0016] Preferably, the right end of the connecting pipe is welded to the neck butt welding flange, and the right end of the externally threaded hose is welded to the connecting pipe.

[0017] Preferably, the inner wall of the flat welding flange is provided with a thread matched with the external threaded hose, and the left side of the outer surface of the external threaded hose is a slope.

[0018] Three beneficial effects

[0019] Compared with the prior art, the present invention provides a dummy for replacing a valve pressure test, which has the following beneficial effects:

[0020] 1. The replacement valve pressure test dummy is provided with a connection component. During the valve installation process, the necked butt welding flange and the opposite side of the flat welding flange are fitted together, and then a gasket is placed between them. The bolt is twisted to fix the screw. In addition, by providing an external threaded hose, only the external threaded hose needs to be twisted when installing the valve, and the connection between the inner and outer pipes of the flat welding flange is lost. The structure that can be quickly assembled is adopted, so that the replacement valve pressure test dummy can be used for pressure testing of different pipeline systems. It has the advantages of easy carrying and convenient disassembly, and can be reused and can be used in different chemical projects, which changes the disadvantages of the prior art that only fixed-size pipeline valve length components are made, which are disposable and cannot be reused.

[0021] 2. The replacement valve pressure test dummy can be equipped with a splicing mechanism. When the flat welding flange and the external threaded hose are disassembled, the support rod can be pressed outward to make the support rod detach from the surface of the external threaded hose. At this time, the driving wheel is rotated to make the driving wheel rotate on the surface of the external threaded hose, so that the driving teeth inside the driving wheel drive the external threaded hose to rotate, and the rotation makes it detach from the inside of the flat welding flange. During the rotation, due to the different numbers of teeth of the mutually meshing outer driving teeth, one circle of the driving wheel will drive the external threaded hose to rotate multiple circles, thereby achieving a labor-saving effect and realizing that one worker can install and disassemble the replacement valve pressure test dummy. The dummy is easy to disassemble and carry, has a wide spectrum of versatility, and is reused frequently. It has changed the previous clumsy pressure test history of customizing pipeline pressure tests according to valve lengths, and has created a convenient threaded connection. On the basis of not disassembling the flange, it can adjust the valve pressure test spacing, improve the work efficiency of workers, and advance the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a front cross-sectional view of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified view of the structure at center;

[0026] Figure 5 It is a right side sectional view of the driving wheel of the present invention.

[0027] In the figure: 1 connecting pipe, 2 connecting assembly, 201 neck butt welding flange, 202 flat welding flange, 203 internal threaded pipe, 205 screw, 206 gasket, 3 splicing mechanism, 301 external threaded hose, 302 mounting sleeve, 303 support rod, 304 clamping block, 305 connecting shaft, 306 return spring, 307 slide groove, 308 driving wheel, 309 rotating block, 310 driving tooth. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-5 , replacing the valve pressure test dummy, comprising a connecting pipe 1, a connecting assembly 2 is arranged on the outside of the connecting pipe 1, and a splicing mechanism 3 is arranged on the outer surface of the connecting pipe 1 and on a side close to the connecting assembly 2;

[0030] The connecting assembly 2 includes a necked butt-welding flange 201 located on the outer surface of the connecting pipe 1, a flat welding flange 202 is fixedly installed on the right side of the necked butt-welding flange 201, an internal threaded pipe 203 is fixedly installed on the right side of the flat welding flange 202, a screw 205 threadedly connected between the necked butt-welding flange 201 and the flat welding flange 202, and a gasket 206 is fixedly installed at the connection between the necked butt-welding flange 201 and the flat welding flange 202.

[0031] In this embodiment, by providing the connection assembly 2, the necked butt welding flange 201 and the opposite side of the flat welding flange 202 are attached together during the valve installation process, and then the gasket 206 is placed between them, and the bolt is twisted to fix the screw 205. In addition, by providing the external threaded hose 301, when installing the valve, only the external threaded hose 301 needs to be twisted, and the connection of the inner and outer pipes twisted into the flat welding flange 202 is lost. The structure that can be quickly assembled is adopted, so that the replacement valve pressure test dummy can be used for pressure testing of different pipeline systems, which has the advantages of easy carrying and convenient disassembly, and can be reused and can be used in different chemical projects, which changes the disadvantages of the prior art that only fixed-size pipeline valve length components are made, which are disposable and cannot be reused;

[0032] The splicing mechanism 3 includes an externally threaded hose 301 located on the right side of the internally threaded tube 203, a mounting sleeve 302 is fixedly installed on the outer surface of the flat welding flange 202, support rods 303 are movably installed on the top and bottom of the mounting sleeve 302, and blocks 304 are fixedly installed on the opposite sides of the two support rods 303, connecting shafts 305 are fixedly installed on the top and bottom of the mounting sleeve 302, a return spring 306 is fixedly installed between the left end of the connecting shaft 305 and the mounting sleeve 302, a slide groove 307 is opened on the right side of the mounting sleeve 302, and the right side of the slide groove 307 is slidably connected to a driving wheel 308, and the outer surface of the driving wheel 308 is fixedly installed with rotating blocks 309 arranged at equal distances, and the inner wall of the driving wheel 308 and the outer surface of the externally threaded hose 301 are fixedly installed with driving teeth 310 arranged at equal distances.

[0033] In this embodiment, by setting the splicing mechanism 3, when the flat welding flange 202 and the external threaded hose 301 are disassembled, the support rod 303 can be pressed outwardly to make the support rod 303 detach from the surface of the external threaded hose 301. At this time, the driving wheel 308 is rotated to make the driving wheel 308 rotate on the surface of the external threaded hose 301, so that the driving gear 310 inside the driving wheel 308 drives the external threaded hose 301 to rotate, and the rotation makes it detach from the inside of the flat welding flange 202. During the rotation process, due to the different numbers of teeth of the mutually meshing outer driving teeth 310, rotating the driving wheel 308 once will drive the external threaded hose 301 to rotate multiple times, thereby achieving a labor-saving effect, realizing that one worker can install and disassemble the valve pressure test dummy, which is convenient to disassemble and carry, has a wide spectrum of versatility, and has a high frequency of repeated use. It has changed the previous clumsy pressure test history of customizing the pipeline pressure test according to the valve length, and created a convenient threaded connection. On the basis of not disassembling the flange, it can adjust the valve pressure test spacing, improve the work efficiency of the workers, and advance the construction period.

[0034] To summarize, the replacement valve pressure test dummy, by setting the connection component 2 and the external threaded hose 301, only needs to twist the external threaded hose 301 when installing the valve, and loses the connection between the inner and outer pipes of the flat welding flange 202. The structure that can be quickly assembled is adopted, so that the replacement valve pressure test dummy can be used for pressure testing of different pipeline systems, and has the advantages of easy carrying and convenient disassembly. At the same time, it can be reused and can be used in different chemical projects, which changes the disadvantage of the prior art that only fixed-size pipeline valve length components are made, which are disposable and cannot be reused.

[0035] Furthermore, by setting the support rod 303, the support rod 303 is separated from the surface of the external threaded hose 301, and the driving wheel 308 is rotated at this time, so that the driving wheel 308 rotates on the surface of the external threaded hose 301, and the driving teeth 310 inside the driving wheel 308 drive the external threaded hose 301 to rotate, and the rotation makes it separate from the inside of the flat welding flange 202. During the rotation process, due to the different numbers of teeth of the mutually meshing outer driving teeth 310, one rotation of the driving wheel 308 will drive the external threaded hose 301 to rotate multiple times, thereby achieving a labor-saving effect, realizing that one worker can install and disassemble to replace the problem of valve pressure test fake parts, and the disassembly is convenient and portable. It is easy to carry, has a wide spectrum of versatility, and a high frequency of reuse. It has changed the previous history of clumsy pipeline pressure testing that was customized according to the valve length, and has created a convenient threaded connection. On the basis of not disassembling the flange, it can adjust the valve pressure test spacing, improve the work efficiency of workers, advance the construction period, and solve the traditional single fixed type. The pipeline pressure test component is relatively bulky and cannot be reused. It can only be used for specific projects. The pressure test of new projects has to be re-made, the production cost is high, and materials and labor are wasted. The cycle is long, and the installation often requires two people to complete it at the same time. Disassembly needs to start from the pipe flange, which is time-consuming, and local adjustment of the length is very difficult.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dummy component for replacing a valve pressure test, comprising a connecting pipe (1), characterized in that: A connecting assembly (2) is arranged on the outside of the connecting pipe (1), and a splicing mechanism (3) is arranged on the outer surface of the connecting pipe (1) and on a side close to the connecting assembly (2); The connection assembly (2) comprises a necked butt-welding flange (201) located on the outer surface of the connection pipe (1), a flat welding flange (202) is fixedly installed on the right side of the necked butt-welding flange (201), an internally threaded pipe (203) is fixedly installed on the right side of the flat welding flange (202), a screw (205) threadedly connected between the necked butt-welding flange (201) and the flat welding flange (202), and a gasket (206) is fixedly installed at the connection between the necked butt-welding flange (201) and the flat welding flange (202); The splicing mechanism (3) comprises an externally threaded hose (301) located on the right side of the internally threaded pipe (203); a mounting sleeve (302) is fixedly mounted on the outer surface of the flat welding flange (202); support rods (303) are movably mounted on the top and bottom of the mounting sleeve (302); blocks (304) are fixedly mounted on opposite sides of the two support rods (303); connecting shafts (305) are fixedly mounted on the top and bottom of the mounting sleeve (302); and the connecting shafts (305) are fixedly mounted on the top and bottom of the mounting sleeve (302). A return spring (306) is fixedly installed between the left end of the outer sleeve (305) and the mounting sleeve (302), a slide groove (307) is provided on the right side of the mounting sleeve (302), the right side of the slide groove (307) is slidably connected to a driving wheel (308), the outer surface of the driving wheel (308) is fixedly installed with rotating blocks (309) arranged at equal distances, and the inner wall of the driving wheel (308) and the outer surface of the external threaded hose (301) are both fixedly installed with driving teeth (310) arranged at equal distances, The right end of the support rod (303) is located on the outer surface of the externally threaded hose (301), and a slot is provided at the top and the bottom of the externally threaded hose (301), and one end of the clamping block (304) away from the support rod (303) is clamped inside the slot. The left end of the support rod (303) is movably connected to the connecting shaft (305), and the driving wheel (308) is sleeved on the outside of the external threaded hose (301). The driving teeth (310) inside the driving wheel (308) and the driving teeth (310) on the outer surface of the externally threaded hose (301) are meshed with each other, and the number of teeth of the driving teeth (310) inside the driving wheel (308) is smaller than the number of teeth of the externally threaded hose (301).

2. The valve pressure test dummy according to claim 1, characterized in that: The left and right ends of the screw rod (205) are threadedly connected with bolts, and the opposite sides of the necked butt welding flange (201) and the flat welding flange (202) are in contact with each other.

3. The valve replacement pressure test dummy according to claim 1, characterized in that: The gasket (206) is a rubber cushion, and the left end of the external threaded hose (301) is inserted into the interior of the flat welding flange (202) and is threadedly connected thereto.

4. The valve replacement pressure test dummy according to claim 1, characterized in that: The support rod (303) is located outside the driving wheel (308), and the left end of the driving wheel (308) is clamped inside the sliding groove (307).

5. The valve replacement pressure test dummy according to claim 1, characterized in that: The right end of the connecting pipe (1) is welded to the necked butt-welding flange (201), and the right end of the externally threaded hose (301) is welded to the connecting pipe (1).

6. The valve replacement pressure test dummy according to claim 1, characterized in that: The inner wall of the flat welding flange (202) is provided with a thread matching the external thread hose (301), and the left side of the outer surface of the external thread hose (301) is an inclined surface.

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