Sealed gas leakage prevention gas gate valve

Abstract

The utility model discloses a sealed gas leakage prevention gas gate valve, and relates to the field of gas gate valves. According to the sealing gas leakage prevention gas gate valve, the self-adjusting gas gate valve comprises a valve bin, a connecting flange, a valve body sealing ring, a valve body rotating rod, a rotating valve plate, a contact type detector, a transmission line, a driving stand column, a driving motor, a driver and a manual valve ring; during use, the gas gate valve can be controlled manually and automatically, the use efficiency is high, meanwhile, the closing condition can be detected, the situation of gas leakage caused by gap closing is avoided, and the safety is high. By arranging the gate valve anti-leakage sealing connection assembly which comprises a bottom concave type covering ring, a top concave type covering ring, an internal thread connection block, a connection bolt, a concave type sealing ring and a gas leakage early warning device, sealing type protection work can be conducted on the connection position of the gas gate valve in the using process, and the situation that gas leaks out of the connection position is avoided; and the gas leakage position can be found in time.

Description

Technical Field

[0001] The utility model relates to the field of gas gate valves, in particular to a sealed gas gate valve that prevents gas leakage. Background Art

[0002] The gas gate valve is a device used to open and close pipeline passages or adjust the flow of media in the pipeline. It is the main cutting and regulating device on the gas pipeline. In order to ensure the safety of the use of the gas gate valve, it must be ensured that the gas gate valve can be tightly closed without leakage.

[0003] The existing gas gate valve has certain disadvantages when in use. The existing gas gate valve cannot complete automatic closing when in use and requires manual rotation adjustment. It is also impossible to detect the closing position of the gas gate valve and cannot ensure whether the gas gate valve is closed in place. At the same time, the existing gas gate valve cannot protect the gate valve connection when in use, and long-term use is prone to gas leakage due to loose connections.

[0004] Therefore, it is necessary to propose a sealed and leak-proof gas gate valve to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a sealed and leak-proof gas gate valve, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A sealed and leak-proof gas gate valve comprises a self-regulating gas gate valve, both ends of the outer surfaces of which are provided with gate valve leak-proof sealing connection components, the self-regulating gas gate valve comprises a valve chamber, a connecting flange, a valve body sealing ring, a valve body rotating rod, a rotating valve plate, a contact detector, a transmission line, a driving column, a driving motor, a transmission and a manual valve ring, the gate valve leak-proof sealing connection component comprises a bottom concave covering ring, a top concave covering ring, an internal threaded connection fastener, a connecting bolt, a concave sealing ring and a gas leakage early warning device.

[0008] Preferably, connecting flanges are provided on the outer surfaces of both ends of the valve bin, a valve body sealing ring is provided on the inner wall of the valve bin, a rotating valve plate is provided on the inner wall of the valve body sealing ring, a valve body rotating rod is provided in the middle of the rotating valve plate, contact detectors are provided on the outer surfaces of both sides of the rotating valve plate, a transmission line is provided between the valve body rotating rod and the contact detector, a driving column is provided on the outer surface of one end of the valve body rotating rod, a driving motor is provided on the outer wall of the driving column, a transmission device is provided on the outer surfaces of one end of the driving column and the driving motor, and a manual valve ring is provided on the upper outer surface of the transmission.

[0009] Preferably, the outer surfaces of both ends of the valve bin are fixedly connected to the outer surface of one end of the connecting flange, the inner wall of the valve bin is fixedly connected to the outer wall of the valve body sealing ring, the inner wall of the valve body sealing ring is movably connected to the outer surfaces of the rotating valve plate, the middle part of the rotating valve plate is fixedly connected to the outer wall of the valve body rotating rod, and the outer surfaces of both sides of the rotating valve plate are fixedly connected to the outer surface of one side of the contact detector.

[0010] Preferably, the middle part of the valve body rotating rod is fixedly connected to the middle part of one side of the contact detector through a transmission line, the outer surface of one end of the valve body rotating rod is detachably connected to the outer surface of the other end of the driving column, the outer wall of the driving column is detachably connected to the outer wall of the driving motor, the outer surfaces of one end of the driving column and the driving motor are both detachably connected to the lower outer surface of the transmission, and the upper outer surface of the transmission is detachably connected to the middle part of the manual valve ring.

[0011] Preferably, a top concave covering ring is provided on the outer surface of the upper end of the bottom concave covering ring, inner threaded connecting rings are provided on the outer surfaces of both sides of the bottom concave covering ring and the top concave covering ring, concave sealing rings are provided on the inner surfaces of both sides of the bottom concave covering ring and the top concave covering ring, connecting bolts are provided in the middle of the inner threaded connecting ring, and a gas leakage alarm is provided in the middle of the upper end of the top concave covering ring.

[0012] Preferably, the upper outer surface of the bottom concave covering ring is detachably connected to the lower outer surface of the top concave covering ring, and both side outer surfaces of the bottom concave covering ring and the top concave covering ring are fixedly connected to the outer surface of one side of the internal thread connection.

[0013] Preferably, the inner surfaces on both sides of the bottom concave covering ring and the top concave covering ring are fixedly connected to the outer surfaces on both sides of the concave sealing ring, the middle part of the internal thread connection is detachably connected to the outer wall of the connecting bolt, and the middle part of the upper end of the top concave covering ring is fixedly connected to the middle part of the gas leak alarm.

[0014] Preferably, the outer surfaces at both ends of the self-regulating gas gate valve are detachably connected to the inner wall of the gate valve anti-leakage sealing connection assembly. Beneficial Effects

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. This kind of sealed and leak-proof gas gate valve, through the self-adjusting gas gate valve including a valve chamber, a connecting flange, a valve body sealing ring, a valve body rotating rod, a rotating valve plate, a contact detector, a transmission line, a driving column, a driving motor, a transmission and a manual valve ring, can be used to manually and automatically control the gas gate valve, has good use efficiency, and can detect the closing condition at the same time to avoid leakage caused by closing gaps.

[0017] 2. This kind of sealed and leak-proof gas gate valve, through the gate valve leak-proof sealing connection assembly including a bottom recessed covering ring, a top recessed covering ring, an internal threaded connection fastener, a connecting bolt, a recessed sealing ring and a gas leakage alarm, can perform sealing protection work on the gas gate valve connection when in use to avoid gas leakage at the connection and can promptly detect the gas leakage location. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a sealed and leak-proof gas gate valve of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of a sealed and leak-proof gas gate valve of the utility model;

[0020] Figure 3 The utility model is a sealed and leak-proof gas gate valve Figure 1 A schematic diagram of the structure of the self-regulating gas gate valve 1;

[0021] Figure 4 The utility model is a sealed and leak-proof gas gate valve Figure 2 Schematic diagram of the structure of the anti-leakage sealing connection component 2 of the middle gate valve.

[0022] In the figure: 1. Self-regulating gas gate valve; 2. Anti-leakage sealing connection assembly of gate valve; 101. Valve chamber; 102. Connecting flange; 103. Valve body sealing ring; 104. Valve body rotating rod; 105. Rotating valve plate; 106. Contact detector; 107. Transmission line; 108. Driving column; 109. Driving motor; 110. Transmission; 111. Manual valve ring; 201. Bottom concave covering ring; 202. Top concave covering ring; 203. Internal threaded connection fastener; 204. Connecting bolt; 205. Concave sealing ring; 206. Gas leakage early warning device. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-4As shown, a sealed and leak-proof gas gate valve comprises a self-regulating gas gate valve 1. The outer surfaces of both ends of the self-regulating gas gate valve 1 are provided with a gate valve leak-proof sealing connection assembly 2. The self-regulating gas gate valve 1 comprises a valve chamber 101, a connecting flange 102, a valve body sealing ring 103, a valve body rotating rod 104, a rotating valve plate 105, a contact detector 106, a transmission line 107, a driving column 108, a driving motor 109, a transmission 110 and a manual valve ring 111. The gate valve leak-proof sealing connection assembly 2 comprises a bottom concave covering ring 201, a top concave covering ring 202, an internal threaded connection fastener 203, a connecting bolt 204, a concave sealing ring 205 and a gas leakage early warning device 206.

[0025] It should be noted that the utility model is a sealed and leak-proof gas gate valve. The self-adjusting gas gate valve 1 includes a valve chamber 101, a connecting flange 102, a valve body sealing ring 103, a valve body rotating rod 104, a rotating valve plate 105, a contact detector 106, a transmission line 107, a driving column 108, a driving motor 109, a transmission device 110 and a manual valve ring 111. When the gas gate valve is closed, the driving motor 109 can be controlled by a controller to rotate the valve body rotating rod 104 inside the driving column 108 through the transmission device 110, and the valve body rotates. The rod 104 drives the rotary valve plate 105 to rotate, and the rotary valve plate 105 detects the middle closing point of the valve chamber 101 through the contact detectors 106 on both sides. After the contact detector 106 is aligned with the middle closing point of the valve chamber 101, the information is transmitted to the drive motor 109 through the transmission line 107 to stop the motor function. When an accident occurs to the equipment, the opening and closing of the gas gate valve can be completed through the manual valve ring 111. When in use, the control work of the gas gate valve can be completed manually and automatically, which has good use efficiency and can also control the closing situation. The condition is detected to avoid leakage caused by closing the gap. The gate valve anti-leakage sealing connection component 2 includes a bottom concave covering ring 201, a top concave covering ring 202, an internal thread connection fastener 203, a connecting bolt 204, a concave sealing ring 205 and a gas leakage alarm 206. When in use, the bottom concave covering ring 201 is first covered with the top concave covering ring 202 at the connecting flange 102 of the gas gate valve through the concave sealing ring 205. After covering, the connecting bolt 204 is passed through the bottom concave covering ring 201 and the top concave covering ring 202. The internal thread connection fastener 203 connects the bottom recessed covering ring 201 and the top recessed covering ring 202, and at the same time, the two sets of recessed sealing rings 205 are in sealing contact to form an independent space. If there is a gas leak at the connection of the gas gate valve, the gas will appear in the independent space to prevent gas leakage. The gas leakage alarm 206 can be used to detect gas in the independent space to find the leakage position in time. When in use, the connection of the gas gate valve can be sealed and protected to avoid gas leakage at the connection and find the gas leakage position in time.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sealed and leak-proof gas gate valve, comprising a self-regulating gas gate valve (1), characterized in that: The outer surfaces of both ends of the self-regulating gas gate valve (1) are provided with a gate valve anti-leakage sealing connection assembly (2). The self-regulating gas gate valve (1) comprises a valve chamber (101), a connecting flange (102), a valve body sealing ring (103), a valve body rotating rod (104), a rotating valve plate (105), a contact detector (106), a transmission line (107), a driving column (108), a driving motor (109), a transmission device (110) and a manual valve ring (111). The gate valve anti-leakage sealing connection assembly (2) comprises a bottom concave covering ring (201), a top concave covering ring (202), an internal threaded connection fastener (203), a connecting bolt (204), a concave sealing ring (205) and a gas leakage alarm (206).

2. A sealed and leak-proof gas gate valve according to claim 1, characterized in that: The outer surfaces of both ends of the valve chamber (101) are provided with connecting flanges (102), the inner wall of the valve chamber (101) is provided with a valve body sealing ring (103), the inner wall of the valve body sealing ring (103) is provided with a rotating valve plate (105), a valve body rotating rod (104) is provided in the middle of the rotating valve plate (105), contact detectors (106) are provided on the outer surfaces of both sides of the rotating valve plate (105), a transmission line (107) is provided between the valve body rotating rod (104) and the contact detector (106), a driving column (108) is provided on the outer surface of one end of the valve body rotating rod (104), a driving motor (109) is provided on the outer wall of the driving column (108), a transmission device (110) is provided on the outer surface of one end of the driving column (108) and the driving motor (109), and a manual valve ring (111) is provided on the outer surface of the upper end of the transmission device (110).

3. A sealed and leak-proof gas gate valve according to claim 1, characterized in that: The outer surfaces at both ends of the valve chamber (101) are fixedly connected to the outer surface of one end of the connecting flange (102), the inner wall of the valve chamber (101) is fixedly connected to the outer wall of the valve body sealing ring (103), the inner wall of the valve body sealing ring (103) is movably connected to the outer surfaces of the rotating valve plate (105) on all sides, the middle part of the rotating valve plate (105) is fixedly connected to the outer wall of the valve body rotating rod (104), and the outer surfaces on both sides of the rotating valve plate (105) are fixedly connected to the outer surface of one side of the contact detector (106).

4. A sealed and leak-proof gas gate valve according to claim 1, characterized in that: The middle part of the valve body rotating rod (104) is fixedly connected to the middle part of one side of the contact detector (106) through a transmission line (107); the outer surface of one end of the valve body rotating rod (104) is detachably connected to the outer surface of the other end of the driving column (108); the outer wall of the driving column (108) is detachably connected to the outer wall of the driving motor (109); the outer surfaces of one end of the driving column (108) and the driving motor (109) are detachably connected to the lower outer surface of the transmission (110); and the upper outer surface of the transmission (110) is detachably connected to the middle part of the manual valve ring (111).

5. The sealed and leak-proof gas gate valve according to claim 1, characterized in that: The upper outer surface of the bottom concave covering ring (201) is provided with a top concave covering ring (202), the outer surfaces on both sides of the bottom concave covering ring (201) and the top concave covering ring (202) are provided with internal threaded connection fasteners (203), the inner surfaces on both sides of the bottom concave covering ring (201) and the top concave covering ring (202) are provided with concave sealing rings (205), the middle of the internal threaded connection fastener (203) is provided with a connecting bolt (204), and the middle of the upper end of the top concave covering ring (202) is provided with a gas leakage alarm (206).

6. A sealed and leak-proof gas gate valve according to claim 1, characterized in that: The upper outer surface of the bottom concave covering ring (201) is detachably connected to the lower outer surface of the top concave covering ring (202), and both side outer surfaces of the bottom concave covering ring (201) and the top concave covering ring (202) are fixedly connected to one side outer surface of the internal thread connection fastener (203).

7. A sealed and leak-proof gas gate valve according to claim 1, characterized in that: The inner surfaces on both sides of the bottom concave covering ring (201) and the top concave covering ring (202) are fixedly connected to the outer surfaces on both sides of the concave sealing ring (205); the middle part of the internal threaded connection fastener (203) is detachably connected to the outer wall of the connecting bolt (204); and the middle part of the upper end of the top concave covering ring (202) is fixedly connected to the middle part of the gas leakage alarm (206).

8. The sealed and leak-proof gas gate valve according to claim 1, characterized in that: The outer surfaces of both ends of the self-regulating gas gate valve (1) are detachably connected to the inner wall of the gate valve anti-leakage sealing connection assembly (2).

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