Gas supply device for protective gas in leakage area of factory building

Abstract

The utility model discloses a protective gas supply device for a factory building leakage area, and relates to the technical field of leakage treatment. Which comprises a high-pressure gas storage tank, a valve is arranged on the high-pressure gas storage tank, a valve rod is arranged on the valve, a heating mechanism is arranged at the position of the valve rod on the valve, the heating mechanism comprises a protective shell fixed to the valve, a high-frequency heating coil is arranged in the protective shell, the heating mechanism further comprises a positioning ring seat fixed in the protective shell, and the high-frequency heating coil is arranged in the positioning ring seat. A temperature sensor is fixedly installed in the positioning ring seat, a spiral groove is formed in the positioning ring seat, and a switching mechanism is arranged between the protective shell and the valve rod. According to the gas supply device for the protective gas in the plant leakage area, the switching mechanism can control the valve to be opened, the protective gas is introduced into equipment, the equipment is prevented from being oxidized and corroded, after the valve rod is frozen, the valve rod can be heated through the heating mechanism, so that ice blocks freezing the valve rod are melted, and the situation that gas supply cannot be stopped is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage treatment, in particular to a gas supply device for protective gas in a leakage area of a plant. Background Art

[0002] Leakage zone shielding gases are primarily used in specific environments to prevent the loss of materials, products, or equipment due to factors such as oxidation, corrosion, and contamination. The use of shielding gases is particularly critical in leak zones to ensure personnel safety and prevent further environmental damage. Some equipment in a factory is expensive. To prevent damage to these expensive pieces of equipment, shielding gases are introduced into the equipment when hazardous gases leak to prevent oxidation and corrosion. Common shielding gases include nitrogen (N2) and argon (Ar).

[0003] Shielding gas is usually stored in a high-pressure gas tank after being liquefied. The shielding gas can be introduced into the equipment by opening the valve on the gas tank to prevent the equipment from oxidation and corrosion. Sometimes the valve is set in some relatively humid places. When liquid nitrogen or liquid argon is gasified and sprayed out, it will absorb a large amount of heat, causing the valve temperature to drop sharply. The moisture in the humid place will freeze the valve stem, making it impossible to rotate the valve stem and stop the gas supply, resulting in a waste of shielding gas. Therefore, a gas supply device for shielding gas in the leakage area of the plant is proposed. Utility Model Content

[0004] The main purpose of the utility model is to provide a gas supply device for protective gas in a leakage area of a factory building, which can effectively solve the problems mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A gas supply device for protective gas in a leakage area of a factory building, comprising a high-pressure gas storage tank, a valve provided on the high-pressure gas storage tank, a pressure gauge connected to the valve, a valve stem provided on the valve, a handwheel fixedly mounted on the end of the valve stem, a heating mechanism provided at the valve stem on the valve, the heating mechanism comprising a protective shell fixed on the valve, a high-frequency heating coil provided in the protective shell, a positioning ring seat fixed in the protective shell, a temperature sensor fixedly mounted in the positioning ring seat, a spiral groove provided in the positioning ring seat, a switch mechanism provided between the protective shell and the valve stem, the switch mechanism being able to remotely control the valve on the high-pressure gas storage tank to open or close.

[0007] Furthermore, a positioning slot is provided on the protective shell, a power socket is fixedly mounted on the protective shell, and the power socket is connected to the high-frequency heating coil through a wire.

[0008] Furthermore, a through hole is formed at one end of the protective shell, and the valve stem passes through the protective shell through the through hole, and the valve stem can rotate freely in the protective shell.

[0009] Furthermore, the high-frequency heating coil is installed on the positioning ring seat through a spiral groove, the high-frequency heating coil is installed in the protective shell through the positioning ring seat, and the valve stem passes through the high-frequency heating coil, and the temperature sensor is installed in the protective shell through the positioning ring seat. The temperature sensor can monitor the temperature inside the protective shell in real time.

[0010] Furthermore, the switching mechanism includes a positioning sleeve fixed on the protective shell and a driven gear fixed on the valve stem, a threaded hole is provided on the side wall of the positioning sleeve, a fixing screw is provided in the threaded hole, a motor slot is provided on the positioning sleeve, a servo motor is fixedly installed in the motor slot, a driving gear is fixedly installed at the output end of the servo motor, and the driving gear is meshed with the driven gear, and the driving gear drives the driven gear to rotate.

[0011] Furthermore, a positioning groove is provided in the middle of the driven gear, and the driven gear is mounted on the valve stem through the positioning groove, so that the driven gear can drive the valve stem to rotate.

[0012] Furthermore, the servo motor is installed on the positioning sleeve through the motor slot, the fixing screw is connected to the positioning sleeve through the threaded hole, and the positioning sleeve is fixed to the protective housing through the fixing screw. The positioning sleeve can install the servo motor on the protective housing.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The servo motor can be installed on the protective housing through the positioning sleeve. After the servo motor is installed on the protective housing, the servo motor can drive the driving gear to rotate. After the driving gear rotates, it will drive the driven gear to rotate. After the driven gear rotates, it will drive the valve stem to rotate, thereby remotely controlling the opening and closing of the valve and passing the protective gas into the equipment to prevent the equipment from oxidation and corrosion.

[0015] 2. When the valve stem is frozen, power can be supplied to the high-frequency heating coil. After the high-frequency heating coil is powered, the valve stem will be heated. After the valve stem is heated, the ice that freezes the valve stem will melt, so that the switch mechanism can normally control the opening and closing of the valve to prevent the situation where the gas supply cannot be stopped. The temperature sensor can monitor the temperature inside the protective shell in real time and control the high-frequency heating coil to close when the temperature is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the heating mechanism of the present utility model;

[0019] Figure 4 This is a schematic diagram of the switch mechanism of the present utility model.

[0020] In the figure: 1. High-pressure gas storage tank; 2. Pressure gauge; 3. Valve; 4. Valve stem; 5. Handwheel; 6. Heating mechanism; 601. Protective shell; 602. Positioning slot; 603. Positioning ring seat; 604. Temperature sensor; 605. Power socket; 606. Spiral groove; 607. High-frequency heating coil; 7. Switch mechanism; 701. Threaded hole; 702. Fixing screw; 703. Positioning sleeve; 704. Motor slot; 705. Servo motor; 706. Driving gear; 707. Driven gear. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 Figure 2 As shown, a gas supply device for protective gas in a leakage area of a factory building includes a high-pressure gas storage tank 1, a valve 3 is provided on the high-pressure gas storage tank 1, a pressure gauge 2 is connected to the valve 3, a valve stem 4 is provided on the valve 3, and a handwheel 5 is fixedly installed at the end of the valve stem 4. The characteristic is that a heating mechanism 6 is provided at the valve stem 4 on the valve 3, the heating mechanism 6 includes a protective shell 601 fixed on the valve 3, a high-frequency heating coil 607 is provided in the protective shell 601, a switch mechanism 7 is provided between the protective shell 601 and the valve stem 4, and the switch mechanism 7 can control the valve 3 to be opened or closed. When the valve stem 4 is frozen, the valve stem 4 can be heated by the heating mechanism 6 to melt the ice that freezes the valve stem 4, thereby preventing the gas supply from being unable to be stopped.

[0023] like Figure 4 As shown, the switch mechanism 7 includes a positioning sleeve 703 fixed on the protective shell 601 and a driven gear 707 fixed on the valve stem 4. A threaded hole 701 is provided on the side wall of the positioning sleeve 703, and a fixing screw 702 is provided in the threaded hole 701. A motor slot 704 is provided on the positioning sleeve 703, and a servo motor 705 is fixedly installed in the motor slot 704. A driving gear 706 is fixedly installed at the output end of the servo motor 705, and the driving gear 706 is meshed with the driven gear 707.

[0024] Specifically, the user can control the opening and closing of the valve 3 through the handwheel 5, and the servo motor 705 can be installed on the protective shell 601 through the positioning sleeve 703. After the servo motor 705 is installed on the protective shell 601, the servo motor 705 can drive the driving gear 706 to rotate. After the driving gear 706 rotates, it will drive the driven gear 707 to rotate. After the driven gear 707 rotates, it will drive the valve stem 4 to rotate, thereby remotely controlling the opening and closing of the valve 3.

[0025] like Figure 3 As shown, the heating mechanism 6 includes a protective shell 601 fixed on the valve 3, and a high-frequency heating coil 607 is provided in the protective shell 601. The heating mechanism 6 also includes a positioning ring seat 603 fixed in the protective shell 601, and a temperature sensor 604 is fixedly installed in the positioning ring seat 603. A spiral groove 606 is provided in the positioning ring seat 603, a positioning slot 602 is provided on the protective shell 601, and a power socket 605 is fixedly installed on the protective shell 601.

[0026] Specifically, during use, the power cord can be connected to the power socket 605. When the valve stem 4 is frozen, the high-frequency heating coil 607 can be powered. After the high-frequency heating coil 607 is powered, the valve stem 4 will be heated. After the valve stem 4 is heated, the ice that freezes the valve stem 4 will melt, so that the switch mechanism 7 can normally control the opening and closing of the valve 3 to prevent the situation where the gas supply cannot be stopped. The temperature sensor 604 can monitor the temperature inside the protective shell 601 in real time, and control the high-frequency heating coil 607 to close when the temperature is high.

[0027] It should be noted that the present invention is a gas supply device for protective gas in a leakage area of a factory building. In actual use, one end of the pipeline is connected to the valve 3, and the other end is connected to the equipment that needs to be protected. When harmful gas leaks, the servo motor 705 can be started. Since the servo motor 705 is installed on the positioning sleeve 703 through the motor slot 704, the fixing screw 702 is connected to the positioning sleeve 703 through the threaded hole 701, and the positioning sleeve 703 is fixed to the protective shell 601 through the fixing screw 702, the driving gear 706 is meshed with the driven gear 707. After the servo motor 705 is started, it will drive the driving gear 706 to rotate. After the driving gear 706 rotates, it will drive the driven gear 707 to rotate. After the driven gear 707 rotates, it will drive the valve stem 4 to rotate, thereby remotely controlling the valve 3 to open. After the valve 3 is opened, the protective Protective air is passed into the equipment to prevent the equipment from oxidation and corrosion. At the same time, after the valve stem 4 is frozen, power can be supplied to the high-frequency heating coil 607. Since the high-frequency heating coil 607 is installed on the positioning ring seat 603 through the spiral groove 606, the high-frequency heating coil 607 is installed in the protective shell 601 through the positioning ring seat 603, and the valve stem 4 passes through the high-frequency heating coil 607. The temperature sensor 604 is installed in the protective shell 601 through the positioning ring seat 603. Therefore, after power is supplied to the high-frequency heating coil 607, the valve stem 4 will be heated. After the valve stem 4 is heated, the ice that freezes the valve stem 4 will melt, so that the switch mechanism 7 can normally control the opening and closing of the valve 3 to prevent the situation where the gas supply cannot be stopped. During the heating process, the temperature sensor 604 will monitor the temperature inside the protective shell 601. When the temperature inside the protective shell 601 is high, the high-frequency heating coil 607 can be turned off.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gas supply device for protective gas in a leakage zone of a factory building, comprising a high-pressure gas storage tank (1), a valve (3) provided on the high-pressure gas storage tank (1), a pressure gauge (2) connected to the valve (3), a valve stem (4) provided on the valve (3), a hand wheel (5) fixedly mounted at the end of the valve stem (4), characterized in that: A heating mechanism (6) is provided at the valve stem (4) on the valve (3), the heating mechanism (6) comprising a protective shell (601) fixed on the valve (3), a high-frequency heating coil (607) being provided in the protective shell (601), the heating mechanism (6) further comprising a positioning ring seat (603) fixed in the protective shell (601), a temperature sensor (604) being fixedly installed in the positioning ring seat (603), a spiral groove (606) being provided in the positioning ring seat (603), and a switch mechanism (7) being provided between the protective shell (601) and the valve stem (4).

2. The gas supply device for protective gas in a leakage area of a factory building according to claim 1, characterized in that: A positioning slot (602) is provided on the protective shell (601), and a power socket (605) is fixedly mounted on the protective shell (601).

3. The gas supply device for protective gas in a leakage area of a factory building according to claim 2, characterized in that: A through hole is provided at one end of the protective shell (601), and the valve stem (4) passes through the protective shell (601) through the through hole.

4. The gas supply device for protective gas in a leakage area of a factory building according to claim 3, characterized in that: The high-frequency heating coil (607) is installed on the positioning ring seat (603) through the spiral groove (606), the high-frequency heating coil (607) is installed in the protective shell (601) through the positioning ring seat (603), and the valve stem (4) passes through the high-frequency heating coil (607), and the temperature sensor (604) is installed in the protective shell (601) through the positioning ring seat (603).

5. The protective gas supply device for a leakage zone in a factory building according to claim 4, characterized in that: The switch mechanism (7) includes a positioning sleeve (703) fixed on the protective housing (601) and a driven gear (707) fixed on the valve stem (4); a threaded hole (701) is provided on the side wall of the positioning sleeve (703); a fixing screw (702) is provided in the threaded hole (701); a motor slot (704) is provided on the positioning sleeve (703); a servo motor (705) is fixedly installed in the motor slot (704); a driving gear (706) is fixedly installed at the output end of the servo motor (705), and the driving gear (706) is meshed with the driven gear (707).

6. The protective gas supply device for a leakage zone in a factory building according to claim 5, characterized in that: A positioning groove is provided in the middle of the driven gear (707), and the driven gear (707) is mounted on the valve stem (4) through the positioning groove.

7. The protective gas supply device for a leakage zone in a factory building according to claim 6, characterized in that: The servo motor (705) is mounted on the positioning sleeve (703) through the motor slot (704), the fixing screw (702) is connected to the positioning sleeve (703) through the threaded hole (701), and the positioning sleeve (703) is fixed to the protective housing (601) through the fixing screw (702).

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