Auxiliary valve opening tool and auxiliary valve opening system

Abstract

The utility model provides a valve auxiliary opening tool and a valve auxiliary opening system, comprising: a valve opening block assembly comprising a first valve opening block and a second valve opening block which can be buckled with each other, and a hooping hole formed between the first valve opening block and the second valve opening block and arranged on a valve rod of a valve in a hooping manner; and the lower supporting block is provided with a mounting caulking groove, the lower supporting block is mounted on a sealing filler device of the valve, the lower supporting block is used for supporting the jacking device, and the jacking device is used for jacking the valve opening block assembly. When the valve needs to be opened in an auxiliary mode, the first valve opening block and the second valve opening block are buckled on the valve rod, connection with the valve rod is achieved, and therefore force can act on the valve rod through the valve opening block assembly. The lower supporting block is installed on the sealing packing device and buckled on the packing bolt, then the jacking device is installed on the lower supporting block, and the upper end of the jacking device abuts against the valve opening block assembly. Jacking force of the jacking device is used for driving the valve rod to act to assist in opening of the valve.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate valves, and particularly relates to a valve auxiliary opening tool and a valve auxiliary opening system. Background Art

[0002] The gate valve is one of the commonly used shut-off valves, which is mainly used to connect and cut off the medium in the pipeline. Its main features are small flow resistance, labor-saving opening and closing, and unrestricted medium flow direction. In nuclear power plants, due to the high requirements for valve safety and stability, gate valves are generally used as isolation valves.

[0003] like Figure 1 As shown, the gate valve in the prior art includes a valve stem 03, one end of which is used to connect to a valve plate, which is arranged in a valve cavity to cut off and connect the valve cavity by moving the valve plate. The other end of the valve stem 03 is connected to a drive rod 01 through a coupling 02, and the drive rod 01 drives the valve stem 03 through a driving mechanism to drive the valve plate to move, so as to realize the opening and closing action of the gate valve.

[0004] As the gate valve in the prior art is used for a long time, it may become stuck during the opening process. In serious cases, it may cause the driving mechanism to be unable to open the gate valve.

[0005] Therefore, how to assist in opening the gate valve when the gate valve cannot be opened is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a valve auxiliary opening tool, which can assist in opening the valve when the valve cannot be opened;

[0007] Another object of the present invention is to provide a valve auxiliary opening system having the above-mentioned valve auxiliary opening tool.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A valve auxiliary opening tool, comprising:

[0010] The valve opening block assembly comprises a first valve opening block and a second valve opening block, wherein the first valve opening block and the second valve opening block are buckled together, and a clamp hole for embracing a valve stem of a valve is formed between the first valve opening block and the second valve opening block;

[0011] A lower support block is provided with an installation groove, the lower support block is installed on the sealing packing device of the valve, the packing bolts of the sealing packing device extend into the installation groove, the lower support block is used to support the lifting device, and the lifting device is used to lift the valve opening block assembly.

[0012] Optionally, in the above-mentioned valve auxiliary opening tool, the first valve opening block is provided with a first hinged portion, the second valve opening block is provided with a second hinged portion, and the first hinged portion and the second valve opening block are hingedly connected through a hinge shaft, so that the first valve opening block and the second valve opening block can rotate along the hinge shaft to switch between a buckled state and an open state;

[0013] When the first valve opening block and the second valve opening block are in a snap-fit ​​state, they can be mounted on the valve stem. When the first valve opening block and the second valve opening block are in an open state, an opening is formed between the two for the valve stem to enter and leave the clamping hole.

[0014] Optionally, in the above-mentioned valve auxiliary opening tool, the valve opening block assembly also includes a clamping piece, and when the first valve opening block and the second valve opening block are in a buckled state, the clamping piece is used to clamp the opening and closing ends of the first valve opening block and the second valve opening block.

[0015] Optionally, in the above-mentioned valve auxiliary opening tool, the clamping component includes a clamping main body and a clamping limit part arranged at both ends of the clamping main body, and a clamping groove for clamping the first valve opening block and the second valve opening block is formed between the two clamping limit parts.

[0016] Optionally, in the above-mentioned valve auxiliary opening tool, the first valve opening block is provided with a first hoop-set half hole, and the second valve opening block is provided with a second hoop-set half hole, and the first hoop-set half hole and the second hoop-set half hole constitute the hoop-set hole.

[0017] Optionally, in the above-mentioned valve auxiliary opening tool, the valve stem is provided with an annular groove, the first hoop half hole comprises a first upper hoop half hole and a first lower hoop half hole which are coaxially arranged, the aperture of the first upper hoop half hole is smaller than the aperture of the first lower hoop half hole, and the first upper hoop half hole corresponds to the slide groove of the valve stem;

[0018] The second hoop-set half hole comprises a coaxially arranged second upper hoop-set half hole and a second lower hoop-set half hole, the aperture of the second upper hoop-set half hole is smaller than the aperture of the second lower hoop-set half hole, and the second upper hoop-set half hole corresponds to the slide groove of the valve stem.

[0019] Optionally, in the above-mentioned valve auxiliary opening tool, the first hoop half hole and the second hoop half hole have the same shape, and when the first valve opening block and the second valve opening block are buckled, the first hoop half hole and the second hoop half hole are symmetrically arranged.

[0020] Optionally, in the above-mentioned valve auxiliary opening tool, the length of the first upper hoop half hole in the axial direction is greater than the length of the first lower hoop half hole in the axial direction;

[0021] The length of the second upper hoop half hole in the axial direction is greater than the length of the second lower hoop half hole in the axial direction.

[0022] The valve auxiliary opening tool provided by the utility model, when it is necessary to assist the valve opening, snaps the first valve opening block and the second valve opening block onto the valve stem, so that the first valve opening block and the second valve opening block are tightly clamped on the valve stem, specifically, they can be tightly clamped below the coupling connecting the valve stem and the driving rod. The valve opening block assembly composed of the first valve opening block and the second valve opening block is connected to the valve stem by being tightly clamped on the valve stem, so that force can be applied to the valve stem through the valve opening block assembly. The lower support block is installed on the sealing packing device and snapped on the packing bolts, and the packing bolts are used to position the lower support block. Then the jacking device is installed on the lower support block, and the upper end of the jacking device is pushed onto the valve opening block assembly. The jacking force of the jacking device is used to drive the valve stem to move and assist the valve opening.

[0023] A valve auxiliary opening system, comprising:

[0024] Lifting device;

[0025] The valve-assisted opening tool is a valve-assisted opening tool as described in any one of the above items, wherein the lifting device is supported on the lower support block.

[0026] Optionally, in the above-mentioned valve auxiliary opening system, the lifting device is a jack.

[0027] The valve auxiliary opening system provided by the utility model has all the technical effects of the above-mentioned valve auxiliary opening tool, and will not be described in detail in this article. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 A partial cross-sectional view of a valve provided in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the structure of the valve auxiliary opening system during the opening process provided by an embodiment of the utility model;

[0031] Figure 3 A front view of a first valve opening block provided in an embodiment of the utility model;

[0032] Figure 4 A top view of a first valve opening block provided in an embodiment of the utility model;

[0033] Figure 5 A front view of a second valve opening block provided in an embodiment of the utility model;

[0034] Figure 6 A top view of a second valve opening block provided in an embodiment of the utility model;

[0035] Figure 7 A front view of a clamping member provided in an embodiment of the utility model;

[0036] Figure 8 A top view of a clamping member provided in an embodiment of the utility model;

[0037] Fig. 9 A side view of a clamping member provided in an embodiment of the utility model;

[0038] Fig.10 A front view of a lower support block provided by an embodiment of the utility model;

[0039] Fig.11 A top view of the lower support block provided in an embodiment of the utility model.

[0040] The meanings of the reference numerals in the figures are as follows:

[0041] 01-driving rod; 02-coupling; 03-valve stem;

[0042] 100-valve block assembly; 200-lower support block; 201-installation groove; 300-lifting device;

[0043] 110-first valve opening block; 111-first valve opening block main body; 112-first hinged portion; 113-first upper hoop half hole; 114-first lower hoop half hole; 115-first hinged hole;

[0044] 120-second valve opening block; 121-second valve opening block main body; 122-second hinged portion; 123-second upper hoop half hole; 124-second lower hoop half hole; 125-second hinged hole;

[0045] 130 - snap-fitting piece; 131 - snap-fitting main body; 132 - snap-fitting limiting portion. DETAILED DESCRIPTION

[0046] The core of the utility model is to provide a valve auxiliary opening tool, which can assist in opening the valve when the valve cannot be opened;

[0047] Another core of the utility model is to provide a valve auxiliary opening system having the above-mentioned valve auxiliary opening tool.

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] The utility model discloses a valve auxiliary opening tool, which can assist the valve in opening when the valve is stuck during opening and affects the normal opening. Specifically, the valve auxiliary opening tool includes a valve opening block assembly (such as Figure 3-Figure 6 As shown) and the lower support block 200 (as Fig.10 and Fig.11 shown).

[0050] Please refer to Figure 2-Figure 6 In the present embodiment, the valve opening block assembly 100 includes a first valve opening block 110 and a second valve opening block 120, and the first valve opening block 110 and the second valve opening block 120 are buckled together. Specifically, the main parts of the first valve opening block 110 and the second valve opening block 120 can be designed as a symmetrical structure. A clamping hole that is arranged on the valve stem 03 of the valve is formed between the first valve opening block 110 and the second valve opening block 120. The first valve opening block 110 and the second valve opening block 120 can be arranged on the valve stem 03 along the radial direction of the valve stem 03. The valve opening block assembly 100 can be limited on the valve stem 03 along the axial direction of the valve stem 03 by utilizing the clamping force between the first valve opening block 110 and the second valve opening block 120 and the valve stem 03, or by utilizing some limiting structures. Therefore, the force generated by the lifting device 300 can be used to act on the valve opening block assembly 100 in the later stage, and the force is applied to the valve stem 03 through the valve opening block assembly 100 to drive the valve stem to move axially, thereby achieving the effect of auxiliary valve opening.

[0051] like Fig.10 and Fig.11 As shown, the lower support block 200 is provided with an installation groove 201, and the lower support block 200 is installed on the sealing packing device of the valve, and the packing bolts of the sealing packing device extend into the installation groove 201. It can be understood by those skilled in the art that the part of the valve stem 03 that can provide a support basis for the jacking device 300 is the sealing packing device, and the sealing packing device is provided with a packing bolt, and the upper end of the packing bolt protrudes from the upper surface of the sealing packing device, so that the packing bolt will affect the placement of the jacking device 300.

[0052] Based on this, the present embodiment adds a lower support block 200, and uses the mounting groove 201 on the lower support block 200 so that the lower support block 200 can be buckled on the packing bolts, so that the lifting device 300 can be supported on the lower support block 200, eliminating the influence of the packing bolts, and the packing bolts also have a positioning effect on the lower support block 200, which can prevent the lower support block 200 from moving on the sealing packing device. The lifting device 300 is used to lift the valve block assembly 100, and by lifting the valve block assembly 100, the valve stem 03 can be lifted, thereby assisting in driving the valve stem 03 to move.

[0053] The utility model provides a valve auxiliary opening tool. When the valve needs to be assisted in opening, the first valve opening block 110 and the second valve opening block 120 are buckled on the valve stem 03, so that the first valve opening block 110 and the second valve opening block 120 are tightly held on the valve stem 03, specifically, they can be tightly held under the coupling 02 connecting the valve stem 03 and the driving rod. When the lifting device 300 lifts the valve opening block assembly 100, even if the valve opening block assembly 100 and the valve stem 03 are in clearance, the valve opening block assembly 100 can be prevented from sliding along the valve stem 03 under the abutment of the coupling 02, so that the lifting force can act on the valve stem 03.

[0054] The valve opening block assembly 100 composed of the first valve opening block 110 and the second valve opening block 120 is connected to the valve stem 03 by hugging it tightly, so that force can be applied to the valve stem 03 through the valve opening block assembly 100. The lower support block 200 is installed on the sealing packing device and buckled on the packing bolts, and the packing bolts are used to position the lower support block 200. Then the lifting device 300 is installed on the lower support block 200, and the upper end of the lifting device 300 is pushed onto the valve opening block assembly 100. The lifting force of the lifting device 300 is used to drive the valve stem 03 to move and assist the valve to open.

[0055] In a specific embodiment of the present invention, the first valve opening block 110 is provided with a first hinged portion 112, that is, the first valve opening block 110 includes a first valve opening block main body 111 and a first hinged portion 112 arranged at one end of the first valve opening block main body 111, and a first hinged hole 115 is opened on the first hinged portion 112.

[0056] The second valve opening block 120 is provided with a second hinged portion 122 , that is, the second valve opening block 120 includes a second valve opening block main body 121 and a second hinged portion 122 arranged at one end of the second valve opening block main body 121 , and a second hinged hole 125 is opened on the second hinged portion 122 .

[0057] The first hinged portion 112 and the second valve opening block 120 are hinged by a hinge shaft, so that the first valve opening block 110 and the second valve opening block 120 can rotate along the hinge shaft to switch between a snap-fit ​​state and an open state. In this embodiment, the first valve opening block 110 and the second valve opening block 120 are connected by a hinge, which can facilitate the first valve opening block 110 and the second valve opening block 120 to switch between a snap-fit ​​state and an open state. It should be noted that the first valve opening block 110 and the second valve opening block 120 may not be connected by a hinge, but the two may be designed as two independent components, which are snapped together when needed, and can be fixed by some components (such as fasteners) after snapping together.

[0058] When the first valve opening block 110 and the second valve opening block 120 are in a snap-fitting state, they can be mounted on the valve stem 03. When the first valve opening block 110 and the second valve opening block 120 are in an open state, an opening is formed therebetween for the valve stem 03 to enter and leave the clamping hole.

[0059] Further, such as Figure 7-Figure 9 As shown, since one end of the first valve opening block 110 and the second valve opening block 120 are hinged, and the other end is a free end, for ease of understanding, the free end is named as an outer support arm. Since the outer support arm is not fixed, there is a risk that the outer support arm opens during the auxiliary valve opening process, causing the valve opening block assembly 100 to separate from the valve stem 03.

[0060] Based on this, in this embodiment, the valve opening block assembly 100 also includes a clamping member 130. When the first valve opening block 110 and the second valve opening block 120 are in a snap-fit ​​state, the clamping member 130 is used to clamp the opening and closing ends of the first valve opening block 110 and the second valve opening block 120, that is, it is clamped on the outer support arms of the first valve opening block 110 and the second valve opening block 120 to prevent the outer support arms from opening.

[0061] Furthermore, the clamping member 130 includes a clamping main body 131 and a clamping limiter 132 disposed at both ends of the clamping main body 131, and a clamping groove for clamping the first valve opening block 110 and the second valve opening block 120 is formed between the two clamping limiters 132. That is, in this embodiment, the clamping member 130 is a U-shaped structure, and the distance between the two clamping limiters 132 should be adapted to the width of the two outer arms after the first valve opening block 110 and the second valve opening block 120 are engaged, so that after the outer arms are embedded in the clamping groove of the clamping member 130, they can be limited by the clamping limiter 132 to prevent the outer arms from opening. It should be noted that the clamping member 130 needs to be engaged above the outer arms to avoid detaching from the outer arms under the action of gravity.

[0062] Of course, the clamping member 130 can also be designed as a closed annular sleeve structure, as long as the end of the outer arm is inserted into the outer arm.

[0063] In a specific embodiment of the utility model, the first valve opening block 110 is provided with a first hoop-set half hole, and the second valve opening block 120 is provided with a second hoop-set half hole, and the first hoop-set half hole and the second hoop-set half hole constitute a hoop-set hole. Specifically, the first hoop-set half hole is a semicircular hole, and the second hoop-set half hole is also a semicircular hole, and the two can constitute a circular hole. Specifically, the first hoop-set half hole and the second hoop-set half hole have the same shape, and when the first valve opening block 110 and the second valve opening block 120 are buckled, the first hoop-set half hole and the second hoop-set half hole are symmetrically arranged.

[0064] Furthermore, an annular groove is provided on the valve stem 03, and the annular groove is located below the coupling 02. The first hoop-set half hole includes a coaxially arranged first upper hoop-set half hole 113 and a first lower hoop-set half hole 114. The aperture of the first upper hoop-set half hole 113 is smaller than the aperture of the first lower hoop-set half hole 114, and the first upper hoop-set half hole 113 corresponds to the slide groove of the valve stem 03.

[0065] Correspondingly, the second hoop half hole includes a coaxially arranged second upper hoop half hole 123 and a second lower hoop half hole 124, the aperture of the second upper hoop half hole 123 is smaller than the aperture of the second lower hoop half hole 124, and the second upper hoop half hole 123 corresponds to the slide groove of the valve stem 03.

[0066] For ease of understanding, the shaft section with an annular groove on the valve stem 03 is defined as the clamping shaft section, and the other shaft sections are defined as the main shaft section. Since the clamping shaft section is provided with a slide groove, the diameter of the clamping shaft section is smaller than the diameter of the main shaft section. The hole surrounded by the first upper hoop half hole 113 and the second upper hoop half hole 123 is the upper hoop hole, and the hole surrounded by the first lower hoop half hole 114 and the second lower hoop half hole 124 is the lower hoop hole. The upper hoop hole is sleeved on the clamping shaft section, and the diameter of the upper hoop hole is larger than the diameter of the clamping shaft section and smaller than the diameter of the main shaft section; the lower hoop hole is sleeved on the main shaft section. In this embodiment, since the diameter of the upper hoop hole is larger than the diameter of the clamping shaft section and smaller than the diameter of the main shaft section, the valve opening block assembly 100 is limited on the valve stem 03 to stably apply the lifting force to the valve stem 03 to assist in controlling the valve opening action.

[0067] Furthermore, the length of the first upper hoop half hole 113 in the axial direction is greater than the length of the first lower hoop half hole 114 in the axial direction; correspondingly, the length of the second upper hoop half hole 123 in the axial direction is greater than the length of the second lower hoop half hole 124 in the axial direction. In this way, the portion embedded in the annular groove can be kept thicker, thereby improving the strength of the valve block assembly 100 to better withstand the lifting force of the lifting device 300.

[0068] The embodiment of the utility model discloses a valve auxiliary opening system, including a lifting device 300 and a valve auxiliary opening tool, wherein the valve auxiliary opening tool is the valve auxiliary opening tool disclosed in the above embodiment, and the lifting device 300 is supported on the lower support block 200. The lifting device 300 can be a jack or other hydraulic lifting devices. The valve auxiliary opening system disclosed in the embodiment of the utility model has all the technical effects of the valve auxiliary opening tool because it has the above valve auxiliary opening tool, which will not be described in detail herein.

[0069] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0070] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0071] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0072] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A valve auxiliary opening tool, characterized in that: include: The valve opening block assembly (100) comprises a first valve opening block (110) and a second valve opening block (120), wherein the first valve opening block (110) and the second valve opening block (120) are engaged with each other, and a clamping hole for embracing a valve stem (03) of a valve is formed between the first valve opening block (110) and the second valve opening block (120); A lower support block (200), wherein the lower support block (200) is provided with an installation groove (201), wherein the lower support block (200) is installed on the sealing packing device of the valve, wherein the packing bolts of the sealing packing device extend into the installation groove (201), and wherein the lower support block (200) is used to support a lifting device (300), wherein the lifting device (300) is used to lift the valve opening block assembly (100).

2. The valve auxiliary opening tool according to claim 1, characterized in that: The first valve opening block (110) is provided with a first hinged portion (112), and the second valve opening block (120) is provided with a second hinged portion (122); the first hinged portion (112) and the second valve opening block (120) are hingedly connected via a hinge shaft, so that the first valve opening block (110) and the second valve opening block (120) can rotate along the hinge shaft to switch between a closed state and an open state; When the first valve opening block (110) and the second valve opening block (120) are in a snap-fitting state, they can be mounted on the valve stem (03); when the first valve opening block (110) and the second valve opening block (120) are in an open state, an opening is formed between the two for the valve stem (03) to enter and leave the clamping hole.

3. The valve auxiliary opening tool according to claim 2, characterized in that: The valve opening block assembly (100) further comprises a clamping member (130), and when the first valve opening block (110) and the second valve opening block (120) are in a snap-fit ​​state, the clamping member (130) is used to be clamped on the opening and closing ends of the first valve opening block (110) and the second valve opening block (120).

4. The valve auxiliary opening tool according to claim 3, characterized in that: The clamping member (130) comprises a clamping main body (131) and clamping limit parts (132) arranged at two ends of the clamping main body (131), and a clamping groove for clamping the first valve opening block (110) and the second valve opening block (120) is formed between the two clamping limit parts (132).

5. The valve auxiliary opening tool according to any one of claims 1 to 4, characterized in that: The first valve opening block (110) is provided with a first hoop-set half hole, and the second valve opening block (120) is provided with a second hoop-set half hole, and the first hoop-set half hole and the second hoop-set half hole constitute the hoop-set hole.

6. The valve auxiliary opening tool according to claim 5, characterized in that: The valve stem (03) is provided with an annular groove, the first hoop-set half hole comprises a first upper hoop-set half hole (113) and a first lower hoop-set half hole (114) which are coaxially arranged, the aperture of the first upper hoop-set half hole (113) is smaller than the aperture of the first lower hoop-set half hole (114), and the first upper hoop-set half hole (113) corresponds to the sliding groove of the valve stem (03); The second hoop-set half hole comprises a second upper hoop-set half hole (123) and a second lower hoop-set half hole (124) which are coaxially arranged, the aperture of the second upper hoop-set half hole (123) is smaller than the aperture of the second lower hoop-set half hole (124), and the second upper hoop-set half hole (123) corresponds to the slide groove of the valve stem (03).

7. The valve auxiliary opening tool according to claim 6, characterized in that: The first hoop-set half hole and the second hoop-set half hole have the same shape, and when the first valve opening block (110) and the second valve opening block (120) are buckled together, the first hoop-set half hole and the second hoop-set half hole are symmetrically arranged.

8. The valve auxiliary opening tool according to claim 6, characterized in that: The length of the first upper hoop half hole (113) in the axial direction is greater than the length of the first lower hoop half hole (114) in the axial direction; The length of the second upper hoop half hole (123) in the axial direction is greater than the length of the second lower hoop half hole (124) in the axial direction.

9. A valve auxiliary opening system, characterized in that: include: Lifting device (300); The valve auxiliary opening tool is the valve auxiliary opening tool as described in any one of claims 1 to 8, wherein the lifting device (300) is supported on the lower support block (200).

10. The valve auxiliary opening system according to claim 9, characterized in that: The lifting device (300) is a jack.

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