Rapid detection alarm device based on LNG natural gas filling

Abstract

The invention discloses a rapid detection and alarm device based on LNG natural gas filling, and relates to the technical field of natural gas detection and alarm devices.The rapid detection and alarm device comprises a natural gas detection and alarm device body, a connecting cylinder is detachably mounted on one side of the top of the natural gas detection and alarm device body, and a mounting head is detachably mounted on the top of the connecting cylinder; a sealing assembly is arranged in the mounting head, a clamping assembly is arranged on one side of the mounting head, one side of the mounting head is in threaded connection with a limiting bolt, and a push rod movably penetrates through the bottom of the mounting head. According to the rapid detection and alarm device based on LNG natural gas filling, natural gas leaked at the connecting position is bound through the sealing film wrapping the outer side of the connecting position of the LNG natural gas filling pipeline, the natural gas leaked preliminarily can be intercepted, diffusion of the leaked natural gas is relieved, and the safety of the LNG natural gas filling pipeline is improved. And the sealing film is matched with the push rod to mechanically push the button switch to start the natural gas detection alarm device main body.

Description

Technical Field

[0001] The present invention relates to the technical field of natural gas detection and alarm devices, and particularly relates to a rapid detection and alarm device based on LNG natural gas filling. Background Technique

[0002] Liquefied natural gas is abbreviated as LNG, and its main component is methane. It is recognized as the cleanest fossil energy on the earth. It is colorless, odorless, non-toxic and non-corrosive. Its volume is about 1 / 625 of the volume of the same amount of gaseous natural gas, and the mass of liquefied natural gas is only about 45% of that of the same volume of water. Its manufacturing process is to first purify the natural gas produced in the gas field, and after a series of ultra-low temperature liquefaction, it is transported by liquefied natural gas ships. When using LNG natural gas, LNG (liquefied natural gas) filling is an operation of loading liquefied natural gas into a specific filling vehicle or storage tank. During the operation, due to the colorless and odorless characteristics of LNG (liquefied natural gas), a detection and alarm device needs to be equipped to detect whether there is leakage to ensure the safety of the operation process.

[0003] The existing detection and alarm devices for LNG natural gas filling usually use external natural gas detection and alarm devices for leakage detection. The detection devices are not convenient to be installed near the filling pipeline, and it is not convenient to detect leakage in the first time when the filling pipeline leaks, which brings certain adverse effects to people's use process. In order to solve the deficiencies of the existing technology, we propose a rapid detection and alarm device based on LNG natural gas filling. Summary of the Invention

[0004] The main purpose of the present invention is to provide a rapid detection and alarm device based on LNG natural gas filling, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A rapid detection and alarm device based on LNG natural gas filling, including a main body of the natural gas detection and alarm device. A connection cylinder is detachably installed on one side of the top of the main body of the natural gas detection and alarm device. An installation head is detachably installed on the top of the connection cylinder. A sealing component is arranged inside the installation head. A clamping component is arranged on one side of the installation head. A limiting bolt is threadedly connected to one side of the installation head. A push rod movably penetrates through the bottom of the installation head. One end of the push rod is slidably connected to the inside of the connection cylinder. One end of the push rod abuts against a button switch. The sealing component includes a fixing plate, the outside of the fixing plate is detachably installed inside the installation head, one end of the fixing plate is detachably installed with a sealing film, sealing strips are symmetrically and fixedly connected to the outside of the sealing film, a binding belt is fixedly connected to one end of the sealing film, and a limiting strip is detachably installed on one side of the bottom of the binding belt.

[0007] Preferably, the clamping assembly includes a fixed sleeve, one end of the fixed sleeve is detachably installed on one side of the mounting head, a limiting frame is detachably installed on the inner wall of the fixed sleeve, fixing rings are symmetrically and detachably installed on the outer side of the fixed sleeve, and an adjusting bolt is threadedly connected to one end of the fixing ring.

[0008] Preferably, one end of the adjusting bolt is rotatably connected to a clamping plate, the outer side of the clamping plate is slidably connected to the inside of the limiting frame, a rubber pad is detachably installed on one side of the clamping plate, and the outer side of the rubber pad is slidably connected to the inside of the limiting frame.

[0009] Preferably, a sealing gasket is detachably installed at the bottom of the fixing plate, and the outer side of the sealing gasket abuts against the inner wall of the mounting head.

[0010] Preferably, an extension gasket is detachably installed at one end of the fixing plate, and the outer side of the extension gasket abuts against the inner side of the mounting head.

[0011] Preferably, a limiting groove is formed on one side of the top of the fixing plate, the width of the limiting groove formed on the fixing plate is the same as the width of the binding belt, and the width of the binding belt is the same as the width of the limiting strip.

[0012] Preferably, the outer side of the sealing strip is slidably connected to the inside of the mounting head, the inner wall of the mounting head abuts against the outer side of the sealing film, and the width of the sealing film is the same as the width of the binding belt.

[0013] Preferably, a first notch is formed on one side of the mounting head, and the bottom of the inner wall of the first notch formed on the mounting head abuts against one side of the binding belt.

[0014] Preferably, the top of the main body of the natural gas detection and alarm device is connected through the outside of the button switch, and the button switch is electrically connected to the main body of the natural gas detection and alarm device.

[0015] Preferably, a second notch is formed on one side of the fixed sleeve, and a third notch is formed on one side of the limiting frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, through the cooperation of the sealing assembly and the mounting head, it is bound and wrapped around the outside of the connection of the filling pipeline during the LNG natural gas filling, the installation is more convenient and closer to the filling pipeline for faster detection. The elasticity of the sealing film and the sealing strip in the sealing assembly can adapt to the binding installation of the connection of filling pipelines with different diameters, and the scope of application is wide.

[0018] 2. In the present invention, the clamping assembly is provided to assist in fixing the installation head on the outer side of the connection of the filling pipeline during LNG natural gas filling. The clamping of the inner clamping plate of the clamping assembly drives the fixing sleeve to drive the installation head to be more firmly installed on the outer side of the filling pipeline connection, preventing the installation head from sliding after installation, and can also effectively protect the connection of the filling pipeline and prevent the connection of the filling pipeline from being damaged due to excessive bending.

[0019] 3. In the present invention, the sealing film wrapped around the outer side of the connection of the LNG natural gas filling pipeline restrains the leaked natural gas at the connection, can intercept the initially leaked natural gas, slow down the diffusion of the leaked natural gas, and uses the sealing film to cooperate with the push rod to mechanically push the button switch to start the main body of the natural gas detection and alarm device, increasing the mechanical structure for detecting leaks while making the operation safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the overall disassembled structural schematic diagram of the present invention;

[0022] Figure 3 is the disassembled structural schematic diagram of the sealing assembly of the present invention;

[0023] Figure 4 is the front view cross-sectional view of the installation head of the present invention;

[0024] Figure 5 is the disassembled structural schematic diagram of the connecting cylinder of the present invention;

[0025] Figure 6 is the disassembled structural schematic diagram of the clamping assembly of the present invention.

[0026] In the figure: 1. Main body of the natural gas detection and alarm device; 2. Connecting cylinder; 3. Installation head; 4. Sealing assembly; 401. Fixed plate; 402. Sealing film; 403. Sealing strip; 404. Binding belt; 405. Limiting strip; 406. Sealing gasket; 407. Extension gasket; 5. Clamping assembly; 501. Fixed sleeve; 502. Limiting frame; 503. Fixed ring; 504. Adjusting bolt; 505. Clamping plate; 506. Rubber pad; 6. Limiting bolt; 7. Push rod; 8. Button switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Example 1, as Figures 1 - 3As shown in the figure, a rapid detection and alarm device based on LNG natural gas filling. The staff pulls the main body 1 of the natural gas detection and alarm device to drive the connecting cylinder 2 and then drive the mounting head 3. The staff sleeved the mounting head 3 outside the connection of the filling pipeline during LNG natural gas filling through the first notch opened in the mounting head 3. After the mounting head 3 is sleeved outside the LNG natural gas filling pipe through the first notch, the main body 1 of the natural gas detection and alarm device and the mounting head 3 are perpendicular to the ground. The LNG natural gas filling pipeline is abutted against one side of the inner wall of the first notch opened in the mounting head 3. Then, the limiting strip 405 is pulled to drive the binding belt 404. The binding belt 404 stretches the sealing film 402 to drive the sealing strip 403 to wrap outside the LNG natural gas filling pipeline. Then, the binding belt 404 drives the limiting strip 405 to pass through the limiting groove opened in the fixing plate 401. At this time, the fixing plate 401 drives the sealing gasket 406 to cooperate with the sealing film 402 and the sealing strip 403 to wrap outside the connection of the LNG natural gas filling pipeline. The extension pad 407 cooperates with the binding belt 404 to block the gap between the fixing plate 401 and the outside of the binding belt 404 after the binding belt 404 passes through the limiting groove opened in the fixing plate 401. Then, the limiting bolt 6 is screwed. One end of the limiting bolt 6 pushes the extrusion limiting strip 405 outside the fixing plate 401 in the mounting head 3. After the limiting strip 405 is pushed by the extrusion of one end of the limiting bolt 6, it pulls the binding belt 404 to stretch the sealing film 402 to drive the sealing strip 403 to tightly wrap outside the connection of the LNG natural gas filling pipeline. Thus, the fixing plate 401 drives the sealing gasket 406 to cooperate with the sealing film 402, the sealing strip 403, and the binding belt 404 to be bound and fixed outside the connection of the LNG natural gas filling pipeline. The fixing plate 401 drives the mounting head 3 to drive the connecting cylinder 2 to drive the main body 1 of the natural gas detection and alarm device to be fixed outside the connection of the LNG natural gas filling pipeline, completing the installation of the main body 1 of the natural gas detection and alarm device outside the LNG natural gas filling pipeline.

[0029] Embodiment 2, as Figure 2 and Figure 6As shown in the figure, for a rapid detection and alarm device based on LNG natural gas filling, when the fixing plate 401 drives the mounting head 3, the connecting cylinder 2, and the natural gas detection and alarm device main body 1 to be fixed outside the LNG natural gas filling pipeline, the mounting head 3 simultaneously drives the fixing sleeve 501 and the limiting frame 502. The fixing sleeve 501 and the limiting frame 502 are sleeved outside the connection of the LNG natural gas filling pipeline through the second notch opened in the fixing sleeve 501 and the third notch opened in the limiting frame 502. After the fixing sleeve 501 and the limiting frame 502 are sleeved outside the connection of the LNG natural gas filling pipeline, turn the adjusting bolts 504 symmetrically arranged on the outside of the fixing sleeve 501. The adjusting bolts 504 move through the thread on the fixing ring 503 and push the rotatably connected clamping plate 505 to drive the rubber pad 506 to slide within the limiting frame 502. Thus, the clamping plates 505 symmetrically arranged within the fixing sleeve 501 drive the rubber pad 506 to clamp outside the connection of the LNG natural gas filling pipeline, and the clamping plate 505 drives the adjusting bolt 504 to drive the fixing sleeve 501 to drive the mounting head 3 to be more firmly installed outside the connection of the LNG natural gas filling pipeline.

[0030] Embodiment 3, as Figures 2 - 5 As shown in the figure, for a rapid detection and alarm device based on LNG natural gas filling, after the clamping plate 505 drives the adjusting bolt 504 to drive the fixing sleeve 501 to cooperate with the mounting head 3 to be firmly installed outside the connection of the LNG natural gas filling pipeline, when a leakage occurs at the connection of the LNG natural gas filling pipeline, the leaked natural gas jets out from the connection of the filling pipeline and fills the sealing film 402 wrapped outside the connection. The sealing film 402 is propped up by the leaked natural gas under the restraint of the sealing strip 403. After the sealing film 402 is propped up by the leaked natural gas within the mounting head 3, it squeezes and pushes the push rod 7 that movably penetrates through the mounting head 3. After being pushed by the sealing film 402, the push rod 7 squeezes and pushes the button switch 8, and the natural gas detection and alarm device main body 1 is triggered to start through the button switch 8 to prompt that a leakage has occurred at the connection of the LNG natural gas filling pipeline, completing the rapid detection of natural gas leakage at the connection of the LNG natural gas filling pipeline.

[0031] It should be noted that the present invention is a rapid detection and alarm device based on LNG natural gas filling. When in use, the first notch opened by the mounting head 3 is sleeved on the outer side of the LNG natural gas filling pipeline connection, and then the rubber pad 506 is clamped on the outer side of the LNG natural gas filling pipeline connection by driving the clamping plate 505. The clamping plate 505 drives the adjusting bolt 504 to drive the fixing sleeve 501 to drive the mounting head 3 to be more firmly installed on the outer side of the LNG natural gas filling pipeline connection. The mounting head 3 is installed more firmly. At the same time, the fixing plate 401 in the mounting head 3 drives the sealing gasket 406 to be bound and fixed on the outer side of the LNG natural gas filling pipeline connection in cooperation with the sealing film 402, the sealing strip 403, and the binding belt 404. When there is a leakage at the LNG natural gas filling pipeline connection, the leaked natural gas supports the sealing film 402, squeezes and pushes the push rod 7, and squeezes and pushes the button switch 8 to trigger the start of the natural gas detection and alarm device main body 1, completing the rapid detection of natural gas leakage at the LNG natural gas filling pipeline connection. And because the limiting strip 405 drives the binding belt 404 to be limited at one end of the limiting bolt 6 inside the mounting head 3, when the pressure on the sealing film 402 is too large, the binding belt 404 is stretched to drive the limiting strip 405 to disengage from one end of the limiting bolt 6, preventing the sealing film 402 from expanding excessively and damaging the mounting head 3.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid detection and alarm device based on LNG natural gas filling, comprising a main body (1) of the natural gas detection and alarm device, characterized in that: On one side of the top of the main body (1) of the natural gas detection and alarm device, a connecting cylinder (2) is detachably installed. On the top of the connecting cylinder (2), a mounting head (3) is detachably installed. Inside the mounting head (3), a sealing assembly (4) is arranged. On one side of the mounting head (3), a clamping assembly (5) is arranged. On one side of the mounting head (3), a limit bolt (6) is threadedly connected. A push rod (7) movably penetrates through the bottom of the mounting head (3). The outer side of one end of the push rod (7) is slidably connected to the inside of the connecting cylinder (2). One end of the push rod (7) abuts against a button switch (8). The sealing assembly (4) includes a fixing plate (401). The outer side of the fixing plate (401) is detachably installed inside the mounting head (3). One end of the fixing plate (401) is detachably installed with a sealing film (402). On the outer side of the sealing film (402), sealing strips (403) are symmetrically and fixedly connected. One end of the sealing film (402) is fixedly connected with a binding band (404). On one side of the bottom of the binding band (404), a limit strip (405) is detachably installed.

2. The rapid detection and alarm device based on LNG natural gas filling according to claim 1, characterized in that: The clamping assembly (5) includes a fixing sleeve (501). One end of the fixing sleeve (501) is detachably installed on one side of the mounting head (3). Inside the inner wall of the fixing sleeve (501), a limit frame (502) is detachably installed. On the outer side of the fixing sleeve (501), fixing rings (503) are symmetrically and detachably installed. One end of the fixing ring (503) is threadedly connected with an adjusting bolt (504).

3. The rapid detection and alarm device based on LNG natural gas filling according to claim 2, wherein: One end of the adjusting bolt (504) is rotatably connected with a clamping plate (505). The outer side of the clamping plate (505) is slidably connected to the inside of the limit frame (502). On one side of the clamping plate (505), a rubber pad (506) is detachably installed. The outer side of the rubber pad (506) is slidably connected to the inside of the limit frame (502).

4. The rapid detection and alarm device based on LNG natural gas refueling according to claim 1, characterized in that: On the bottom of the fixing plate (401), a sealing pad (406) is detachably installed. The outer side of the sealing pad (406) abuts against the inner wall of the mounting head (3).

5. The rapid detection and alarm device based on LNG natural gas refueling according to claim 1, characterized in that: One end of the fixing plate (401) is detachably installed with an extension pad (407). The outer side of the extension pad (407) abuts against the inner side of the mounting head (3).

6. The rapid detection and alarm device based on LNG natural gas filling according to claim 1, characterized in that: On one side of the top of the fixing plate (401), a limit groove is provided. The width of the limit groove provided on the fixing plate (401) is the same as the width of the binding band (404). The width of the binding band (404) is the same as the width of the limit strip (405).

7. A rapid detection and alarm device based on LNG natural gas filling according to claim 1, characterized in that: The outer side of the sealing strip (403) is slidably connected to the inside of the mounting head (3). The inner wall of the mounting head (3) abuts against the outer side of the sealing film (402). The width of the sealing film (402) is the same as the width of the binding band (404).

8. The rapid detection and alarm device based on LNG natural gas filling according to claim 1, characterized in that: On one side of the mounting head (3), a first notch is provided. The bottom of the inner wall of the first notch provided on the mounting head (3) abuts against one side of the binding band (404).

9. The rapid detection and alarm device based on LNG natural gas filling according to claim 1, characterized in that: The top of the main body (1) of the natural gas detection and alarm device is connected through the outside of the button switch (8). The button switch (8) is electrically connected to the main body (1) of the natural gas detection and alarm device.

10. The rapid detection and alarm device based on LNG natural gas filling according to claim 2, characterized in that: On one side of the fixing sleeve (501), a second notch is provided. On one side of the limit frame (502), a third notch is provided.

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