Liquefied gas valve airtightness detection auxiliary device

Abstract

The utility model discloses a liquefied gas valve air tightness detection auxiliary device, which comprises a detection ring and two groups of sealing rings, the inner wall of the detection ring is provided with an air inlet groove, the front surface of the detection ring is provided with a second plug cover, the peripheral side surface of the detection ring is provided with a first plug cover, the detection ring is connected with a connecting frame, and an insertion block is arranged in the connecting frame. Mounting grooves are formed in the upper surfaces of the inserting blocks and connected with springs, the springs are connected with clamping blocks, and clamping grooves are formed in the upper surfaces of the connecting frames. According to the utility model, the detection ring and the gas inlet groove are arranged, so that when a user uses the device and when liquefied gas leaks, the liquefied gas enters the detection ring through the gas inlet groove, and before detection, the second plug cover is opened, a potassium permanganate solution is dropped into the detection ring, and whether the liquefied gas leaks or not can be observed by observing whether the potassium permanganate solution fades or not; detection is timely, low-concentration liquefied gas can also be detected, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of air filtration, in particular to an auxiliary device for detecting air tightness of a liquefied gas valve. Background Art

[0002] Liquefied petroleum gas (LPG) is a kind of petroleum tail gas left over from the process of refining petroleum into gasoline, kerosene, diesel, heavy oil and other oil products. Through a certain procedure, the petroleum tail gas is recycled and reused, and pressurized measures are taken to turn it into liquid and store it in a pressurized container. The name of liquefied gas comes from this.

[0003] Liquefied gas leakage can cause major safety hazards. Therefore, in order to ensure the safe use of users, it is necessary to detect the sealing of liquefied gas valves, which requires the leakage of liquefied gas at the valve position to be detected. The existing liquefied gas leakage detection is usually carried out through a liquefied gas detector, but this detection method has certain defects: this device needs to be fixed at a certain position, and there is a certain height difference from the liquefied gas tank. Since the liquefied gas detector needs the liquefied gas to reach a certain concentration to detect the liquefied gas, there is a certain delay in the detection, and the detection cannot be carried out in time, thereby reducing the practicality of the device. In order to solve the above problems, a liquefied gas valve airtightness detection auxiliary device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary device for detecting air tightness of liquefied gas valves, so as to solve the problem that the existing liquefied gas leakage detection is usually carried out through a liquefied gas detector, but this detection method has certain defects: this device needs to be fixed at a certain position, and there is a certain height difference with the liquefied gas tank. Since the liquefied gas detector needs the liquefied gas to reach a certain concentration to detect the liquefied gas, there is a certain delay in the detection, and the detection cannot be carried out in time, thereby reducing the practicality of the device.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is an auxiliary device for detecting air tightness of a liquefied gas valve, comprising a detection ring and two sets of sealing rings, an air inlet groove is provided on the circumferential side surface of the inner wall of the detection ring, a liquid inlet is provided on the front surface of the detection ring, a second plug cover is installed in the liquid inlet, a liquid discharge port is provided on the circumferential side surface of the detection ring, a first plug cover is installed in the liquid discharge port, the front and rear surfaces of the detection ring are fixedly connected to a connecting frame, an insert block is installed in the connecting frame, the insert block is fixedly connected to the sealing ring, an installation groove is provided on the upper surface of the insert block, a spring is fixedly connected in the installation groove, a clamping block is fixedly connected to the upper end of the spring, and a clamping groove is provided on the upper surface of the connecting frame.

[0007] Preferably, a plurality of fixing brackets are fixedly connected to the peripheral side surface of the detection ring, and a threaded groove is formed on the upper surface of the fixing bracket, and a screw rod is installed in the threaded groove.

[0008] Preferably, one end of the card block is installed in the card slot, and the card block and the card slot are slidably matched.

[0009] Preferably, the inserting block is in sliding engagement with the connecting frame, and the clamping block is in sliding engagement with the mounting slot.

[0010] Preferably, the first plug cover is threadedly matched with the liquid discharge port, and the second plug cover is threadedly matched with the liquid inlet.

[0011] Preferably, the detection ring is entirely made of transparent material.

[0012] Preferably, the screw rod is threadably matched with the fixing frame, and the screw rod is rotatably connected to the fixing ring.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a detection ring, a sealing ring and an air inlet groove. When the user uses it, the detection ring is sleeved on the position of the valve and the gas pipe, the card block is pressed down, and then the plug block is inserted into the connecting frame. The spring resets and the card block is inserted into the card groove to complete the fixation of the sealing ring. The position of the valve and the gas pipe is sealed by the sealing ring to prevent the liquefied gas from continuing to leak. When there is a leak in the liquefied gas, the liquefied gas enters the detection ring through the air inlet groove. Before testing, the second plug cover is opened and potassium permanganate solution is dripped into the detection ring. Since the liquefied gas contains butene, butene reacts with potassium permanganate. Since butene contains a carbon-carbon double bond and has reducing properties, it can be oxidized by potassium permanganate, thereby causing the potassium permanganate solution to fade. By observing whether the potassium permanganate solution fades, it can be observed whether there is a liquefied gas leak. The detection is timely, and low-concentration liquefied gas can also be detected, which is highly practical.

[0015] 2. The utility model facilitates the installation and fixation of the detection ring by providing a fixing frame and a screw rod.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a second cross-sectional structural diagram of the present invention;

[0021] Figure 4 for Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0022] In the accompanying drawings, the parts represented by each number are listed as follows: 1. Detection ring; 2. Air inlet groove; 3. Sealing ring; 4. Connecting frame; 5. Insert block; 6. Card slot; 7. Fixing frame; 8. Screw; 9. First plug cover; 10. Second plug cover; 11. Mounting groove; 12. Spring; 13. Card block. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] See also Figure 1-Figure 4As shown, the utility model is an auxiliary device for detecting air tightness of a liquefied gas valve, comprising a detection ring 1 and two sets of sealing rings 3. An air inlet groove 2 is provided on the circumferential side surface of the inner wall of the detection ring 1, a liquid inlet is provided on the front surface of the detection ring 1, a second plug cover 10 is installed in the liquid inlet, a liquid discharge port is provided on the circumferential side surface of the detection ring 1, a first plug cover 9 is installed in the liquid discharge port, a connecting frame 4 is fixedly connected to the front and rear surfaces of the detection ring 1, an insert block 5 is installed in the connecting frame 4, the insert block 5 is fixedly connected to the sealing ring 3, a mounting groove 11 is provided on the upper surface of the insert block 5, a spring 12 is fixedly connected in the mounting groove 11, a clamping block 13 is fixedly connected to the upper end of the spring 12, a clamping groove 6 is provided on the upper surface of the connecting frame 4, by arranging the detection ring 1, the sealing ring 3 and the air inlet groove 2, when the user uses it, the detection ring 1 is sheathed on the valve and the gas pipe. , press the card block 13 downward, then insert the plug 5 into the connecting frame 4, the spring 12 resets, and the card block 13 is inserted into the card slot 6 to complete the fixation of the sealing ring 3. The sealing ring 3 is used to seal the position of the valve and the gas pipe to prevent the liquefied gas from continuing to leak. When there is a leak in the liquefied gas, the liquefied gas enters the detection ring 1 through the air inlet groove 2. Before the test, open the second plug cover 10 and drip potassium permanganate solution into the detection ring 1. Since the liquefied gas contains butene, butene reacts with potassium permanganate. Because butene contains carbon-carbon double bonds, it has reducing properties and can be oxidized by potassium permanganate, thereby causing the potassium permanganate solution to fade. By observing whether the potassium permanganate solution fades, it can be observed whether there is a leak of liquefied gas. The detection is timely, and low-concentration liquefied gas can also be detected, which is highly practical.

[0026] Several fixing frames 7 are fixedly connected to the peripheral side of the detection ring 1. The upper surface of the fixing frame 7 is provided with a threaded groove, and a screw rod 8 is installed in the threaded groove. By setting the fixing frame 7 and the screw rod 8, the detection ring 1 can be easily installed and fixed.

[0027] One end of the clamping block 13 is installed in the clamping slot 6 , and the clamping block 13 and the clamping slot 6 are slidably matched.

[0028] The inserting block 5 is in sliding engagement with the connecting frame 4 , and the clamping block 13 is in sliding engagement with the mounting groove 11 .

[0029] The first plug cover 9 is threadedly matched with the liquid discharge port, and the second plug cover 10 is threadedly matched with the liquid inlet.

[0030] The detection ring 1 is made of transparent material as a whole.

[0031] The screw rod 8 is threadably matched with the fixing frame 7 , and the screw rod 8 is rotatably connected to the fixing ring 14 .

[0032] Example:

[0033] like Figure 1-Figure 4As shown, the method of using the auxiliary device for detecting air tightness of a liquefied gas valve of the present invention is as follows: when using the present invention, first, the detection ring 1 is set on the position of the valve and the gas pipe, and the screw rod 8 cooperates with the fixing ring 14 to fix the detection ring 1 on the peripheral side of the gas pipe. Before the detection, the second plug cover 10 is opened, and the potassium permanganate solution is dripped into the detection ring 1, and the block 13 is pressed down, and then the plug 5 is inserted into the connecting frame 4. The spring 12 is reset, and the block 13 is inserted into the card slot 6 to complete the fixation of the sealing ring 3. The position of the valve and the gas pipe is sealed by the sealing ring 3 to prevent the liquefied gas from continuing to leak. When there is leakage of liquefied gas, When exposed to water, the liquefied gas enters the detection ring 1 through the air inlet groove 2. Since the liquefied gas contains butene, butene reacts with potassium permanganate. Since butene contains carbon-carbon double bonds, it has reducing properties and can be oxidized by potassium permanganate, thereby causing the potassium permanganate solution to fade. By observing whether the potassium permanganate solution fades, it can be observed whether there is a leakage of liquefied gas. The detection is timely, and low-concentration liquefied gas can also be detected. If the potassium permanganate solution fades, it means that there is a leakage at the connection between the valve and the pipeline, and there is a problem with its airtightness, which needs to be repaired in time. After the detection is completed, the first plug cover 9 can be opened to discharge the detected solution.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A liquefied gas valve air tightness detection auxiliary device, comprising a detection ring (1) and two sets of sealing rings (3), characterized in that: An air inlet groove (2) is provided on the circumferential side surface of the inner wall of the detection ring (1), a liquid inlet is provided on the front surface of the detection ring (1), a second plug cover (10) is installed in the liquid inlet, a liquid discharge port is provided on the circumferential side surface of the detection ring (1), a first plug cover (9) is installed in the liquid discharge port, the front and rear surfaces of the detection ring (1) are fixedly connected to a connecting frame (4), an insert block (5) is installed in the connecting frame (4), the insert block (5) is fixedly connected to the sealing ring (3), an installation groove (11) is provided on the upper surface of the insert block (5), a spring (12) is fixedly connected in the installation groove (11), a clamping block (13) is fixedly connected to the upper end of the spring (12), and a clamping groove (6) is provided on the upper surface of the connection frame (4).

2. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 1, characterized in that: The front surface of the detection ring (1) is connected to a plurality of fixing frames (7), the upper surface of the fixing frames (7) is provided with a threaded groove, a screw rod (8) is installed in the threaded groove, and one end of the screw rod (8) is connected to a fixing ring (14).

3. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 1, characterized in that: One end of the card block (13) is installed in the card slot (6), and the card block (13) and the card slot (6) are slidably matched.

4. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 1, characterized in that: The insert block (5) is in sliding engagement with the connecting frame (4), and the clamping block (13) is in sliding engagement with the mounting groove (11).

5. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 1, characterized in that: The first plug cover (9) is threadedly engaged with the liquid discharge port, and the second plug cover (10) is threadedly engaged with the liquid inlet port.

6. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 1, characterized in that: The detection ring (1) is entirely made of transparent material.

7. The auxiliary device for detecting air tightness of a liquefied gas valve according to claim 2, characterized in that: The screw rod (8) is threadably engaged with the fixing frame (7), and the screw rod (8) is rotationally connected to the fixing ring (14).

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