Fireproof and anti-static high-pressure ball valve

Abstract

The fireproof and anti-static high-pressure ball valve comprises a valve shell, a valve element is movably arranged in the middle of the inner side of the valve shell in a clamped mode, a conductive mechanism used for guiding out static electricity of the valve element is arranged at the lower end of the valve shell, the conductive mechanism comprises a conductive column, a connecting groove, a spring and a conductive piece, and the conductive column is fixedly arranged in the middle of the lower end of the inner side of the valve shell. A connecting groove is formed in the middle of the lower end of the valve element, the conductive column is movably arranged in the connecting groove in a clamped mode, a spring is fixedly arranged at the upper end of the conductive column, and a conductive piece is fixedly arranged at the upper end of the spring. The static electricity release valve is good in using effect, provides an additional grounding circuit for the valve element, and can always ensure the contact stability, so that static electricity of the valve element can be effectively released, and the using effect of the valve body can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field, concretely is a kind of fireproof static electricity prevention high pressure ball valve. BACKGROUND

[0002] The anti-static ball valve is a special kind of ball valve, which is mainly used to prevent static electricity discharge in liquid or gas pipelines, and to ensure the safety and stability of industrial production. The following is a detailed introduction of the anti-static ball valve:

[0003] The anti-static ball valve generally utilizes the good conductivity of the internal metal material to form an electric circuit with the external pipeline system, and leads the static electricity to the ground, thereby achieving the purpose of eliminating static electricity. In the design of the valve, an anti-static device such as a conductive spring or a metal element is usually provided between the valve stem, the ball and the valve body to form a reliable static electricity discharge channel.

[0004] However, the ball valve in the prior art has the following problems: in order to ensure the sealing between the valve core and the shell, a non-metallic sealing element is present on the inner side of the shell, and the valve stem and the valve core are not integrally formed, but the valve stem is inserted into the connecting groove on the upper end of the valve core, so that the rotation of the valve stem can drive the rotation of the valve core. This easily causes assembly gaps and the valve stem and the valve core may not be in contact with each other, so that the static electricity of the valve core is not easily discharged through the valve stem or the shell. Therefore, a fireproof and static electricity prevention high pressure ball valve needs to be improved. SUMMARY

[0005] The utility model aims at providing a fireproof and static electricity prevention high pressure ball valve to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fireproof and static electricity prevention high pressure ball valve, comprising a valve shell, a valve core movably clamped in the middle of the inner side of the valve shell, an electric conduction mechanism for discharging static electricity of the valve core arranged at the lower end of the valve shell, the electric conduction mechanism comprising an electric conduction column, a connecting groove, a spring and an electric conduction sheet, the electric conduction column fixedly arranged at the middle of the lower end of the inner side of the valve shell, the connecting groove opened at the middle of the lower end of the valve core, the electric conduction column movably clamped in the connecting groove, the spring fixedly arranged at the upper end of the electric conduction column, and the electric conduction sheet fixedly arranged at the upper end of the spring.

[0007] Preferably, the valve stem is movably arranged at the upper end of the valve shell through a bearing, a sealing ring is arranged between the valve stem and the valve shell, the valve stem is connected with the valve core through clamping connection between the valve stem and the valve core, and the rotation of the valve stem can drive the rotation of the valve core; thereby the valve can be opened or closed.

[0008] Preferably, the upper end of the valve shell is fixedly provided with a temperature insulation shell, the temperature insulation shell is sleeved on the outer surface of the valve rod, and the temperature insulation shell can play a certain temperature insulation role in case of fire, thereby preventing high temperature from damaging the sealing ring and causing the valve to leak.

[0009] Preferably, the upper end of the valve rod is fixedly provided with a handle, and the upper end of the temperature insulation shell is fixedly provided with a limiting rod; the handle can conveniently rotate the valve rod, thereby conveniently rotating the valve core; and the limiting rod can limit the rotation angle of the valve rod, thereby facilitating the staff to judge the opening and closing conditions of the valve core.

[0010] Preferably, the electrically conductive column, the spring and the electrically conductive sheet are all conductors; in this way, the spring can always push the electrically conductive sheet to tightly adhere to the valve core, so that the static electricity of the valve core can be released through the electrically conductive sheet, the spring and the electrically conductive column.

[0011] Preferably, the lower end of the electrically conductive column is fixedly provided with a connecting ring; the connecting ring can conveniently connect a wire to ground the electrically conductive column, and the electrically conductive column can release the static electricity in the valve core once grounded; it should be noted that the connecting ring of the device should also be made of a conductor material.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model can be contacted through the wire and the connecting ring, and then the wire can be grounded; at this time, the wire is contacted through the connecting ring, the electrically conductive column, the spring, the electrically conductive sheet and the valve core; at this time, the electrically conductive sheet can be ensured to always contact the valve core under the action of the spring and will not be virtually connected; in this way, the static electricity of the valve core can be effectively and conveniently transmitted; in this way, an additional grounding circuit is provided for the valve core, and the contact stability can be always ensured, thereby the static electricity of the valve core can be effectively released, and the use effect of the valve body can be improved.

[0014] 2. The utility model is further provided with the temperature insulation shell outside the valve rod during use, and the temperature insulation shell can insulate temperature to a certain extent; in this way, the sealing ring can be protected within the threshold temperature, so that the high temperature of fire does not damage the sealing ring and cause the valve to leak. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the fireproof and anti-static high-pressure ball valve.

[0016] Figure 2 It is a bottom view of the fireproof and anti-static high-pressure ball valve.

[0017] Figure 3 It is a sectional view of the fireproof and anti-static high-pressure ball valve.

[0018] Figure 4The utility model discloses a fireproof and anti-static high pressure ball valve Figure 3 An enlarged view of area A in the figure.

[0019] In the figure: 1, valve shell;2, valve core;3, conductive column;4, connecting groove;5, spring;6, conductive sheet;7, valve rod;8, sealing ring;9, temperature isolation casing;10, handle;11, limiting rod;12, connecting ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides a technical scheme: a fireproof and anti-static high pressure ball valve, including valve shell 1, the inside middle part of valve shell 1 is movably clamped and is provided with valve core 2, valve shell 1 lower extreme is provided with the conductive mechanism for the electrostatic discharge of valve core 2, the conductive mechanism includes conductive column 3, connecting groove 4, spring 5, conductive sheet 6, the inside lower middle part of valve shell 1 is fixedly provided with conductive column 3, the lower middle part of valve core 2 is provided with connecting groove 4, and conductive column 3 is movably clamped and is arranged in connecting groove 4, and the upper end of conductive column 3 is fixedly provided with spring 5, and the upper end of spring 5 is fixedly provided with conductive sheet 6.

[0022] The inside upper end of valve shell 1 is movably provided with valve rod 7 through bearing, sealing ring 8 is arranged between valve rod 7 and valve shell 1, and valve rod 7 is clamped and connected between the valve core 2 through the clamping groove, and the rotation of valve rod 7 can drive valve core 2 to rotate, so that the valve can be opened or closed.

[0023] The upper end of valve shell 1 is fixedly provided with temperature isolation casing 9, temperature isolation casing 9 is sleeved on the outer surface of valve rod 7, and temperature isolation casing 9 can play a certain temperature isolation role when fire occurs, so as to prevent high temperature from damaging sealing ring 8 and causing the valve to leak.

[0024] The upper end of valve rod 7 is fixedly provided with handle 10, and the upper end of temperature isolation casing 9 is fixedly provided with limiting rod 11. Handle 10 can conveniently rotate valve rod 7, so that valve core 2 can be conveniently rotated. Limiting rod 11 can limit the rotation angle of valve rod 7, and the opening and closing condition of valve core 2 can be conveniently judged by the staff.

[0025] The conductive column 3, the spring 5 and the conductive sheet 6 are all conductors, so that the conductive sheet 6 can be pushed by the spring 5 to always adhere to the valve core 2, so that the static electricity of the valve core 2 can be released through the conductive sheet 6, the spring 5 and the conductive column 3;

[0026] The lower end of the conductive column 3 is fixedly provided with a connecting ring 12, and the conductive column 3 can be grounded through the connecting ring 12 and the wire, and the static electricity in the valve core 2 can be released once the conductive column 3 is grounded, and it should be noted that the connecting ring 12 of the device should also be made of a conductor material;

[0027] Working principle: when the device is used, after the valve shell 1 is installed, the wire can be contacted through the connecting ring 12, and then the wire is grounded, at this time, the wire is contacted through the connecting ring 12, the conductive column 3, the spring 5, the conductive sheet 6 and the valve core 2, at this time, the conductive sheet 6 can be ensured to always contact the valve core 2 under the action of the spring 5 and will not be virtually connected, so that the static electricity of the valve core 2 can be effectively and conveniently transmitted, so that an additional grounding line is provided for the valve core 2, and the contact stability can be always ensured, so that the static electricity of the valve core 2 can be effectively released, and the use effect of the valve body can be improved;

[0028] And the device is further provided with a temperature isolation shell 9 outside the valve rod 7, which can isolate temperature to a certain extent, so that the sealing ring 8 can be protected within the threshold temperature, so as to prevent the sealing ring 8 from being damaged by fire and high temperature, and the valve from being leaked.

[0029] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fireproof and antistatic high-pressure ball valve, comprising a valve body (1), characterized in that: The valve core (2) is movably engaged in the middle of the inner side of the valve housing (1). A conductive mechanism for discharging static electricity from the valve core (2) is provided at the lower end of the valve housing (1). The conductive mechanism includes a conductive post (3), a connecting groove (4), a spring (5), and a conductive sheet (6). A conductive post (3) is fixedly provided in the middle of the lower end of the inner side of the valve housing (1). A connecting groove (4) is opened in the middle of the lower end of the valve core (2). The conductive post (3) is movably engaged in the connecting groove (4). A spring (5) is fixedly provided at the upper end of the conductive post (3). A conductive sheet (6) is fixedly provided at the upper end of the spring (5).

2. The fireproof and antistatic high-pressure ball valve according to claim 1, characterized in that: A valve stem (7) is movably mounted on the upper part of the valve housing (1) via a bearing. A sealing ring (8) is provided between the valve stem (7) and the valve housing (1). The valve stem (7) is engaged with the valve core (2) via a slot.

3. The fireproof and antistatic high-pressure ball valve according to claim 1, characterized in that: A heat insulation shell (9) is fixedly installed on the upper end of the valve body (1), and the heat insulation shell (9) is sleeved on the outer surface of the valve stem (7).

4. A fireproof and antistatic high-pressure ball valve according to claim 3, characterized in that: A handle (10) is fixedly provided at the upper end of the valve stem (7), and a limit rod (11) is fixedly provided at the upper end of the heat insulation housing (9).

5. A fireproof and antistatic high-pressure ball valve according to claim 1, characterized in that: The conductive post (3), spring (5), and conductive sheet (6) are all conductors.

6. A fireproof and antistatic high-pressure ball valve according to claim 1, characterized in that: A connecting ring (12) is fixedly provided at the lower end of the conductive post (3).

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