Protection device of fuel gas inlet pipe

Abstract

The utility model relates to the field of gas pipe protection, in particular to a protection device of a gas inlet pipe, which comprises a box body, a cylinder, a combustion chamber I and a combustion chamber II, a pressure detection meter is arranged on the surface of the box body, a connecting pipe is arranged on the outer wall of one side of the box body, the cylinder is arranged at the upper end of the connecting pipe, and an alarm is arranged at the upper end of the cylinder. A first combustion chamber is arranged at the lower end in the cylinder, a second combustion chamber is arranged at the upper end of the first combustion chamber, a position sensor is arranged on the inner wall of the upper end of the second combustion chamber, and the alarm is matched with the position sensor. According to the device, the design effects of gas buffering combustion protection, intermittent alarm and manual exhaust are utilized, and the problems that due to the fact that an existing gas protection device lacks effective combustion protection and timely alarm processing effects, gas leakage cannot be perceived by people in a short time during transmission, and safety accidents are likely to be caused are solved.

Description

Technical Field

[0001] The utility model relates to the field of gas pipe protection, in particular to a protection device for a gas introduction pipe. Background Art

[0002] Gas leaks may cause the following hazards:

[0003] 1. Gas leakage will cause the accumulation of high concentrations of combustible gas in the air, which may cause explosion or fire once it encounters open flames or electric sparks;

[0004] 2. Gas is toxic. Inhaling high concentrations of gas may cause suffocation, dizziness, vertigo and other respiratory problems;

[0005] 3. Prolonged exposure to gas environment may cause poisoning symptoms, including headache, nausea, coma, and even life-threatening.

[0006] After searching, the patent announcement number is CN208587653U, which discloses a protective cover for a gas pipeline, including a gas pipeline, an insulation layer, a tracer wire, and a PVC pipe. The insulation layer is wrapped around the outer periphery of the gas pipeline, the tracer wire is wound on the insulation layer, and the PVC pipe is sleeved on the outer periphery of the tracer wire. It also has a protective cover, which is sleeved on the PVC pipe, and an inward flange is provided on the upper part of the protective cover; a sealing ring is provided between the flange of the protective cover and the gas pipeline; and the protective cover is sleeved on the ground exposed section of the gas pipeline. The utility model protects the tracer wire from erosion and prevents the tracer wire from losing its function.

[0007] In the existing technology, although a certain gas leakage protection effect can be achieved during use, there is a defect: the existing gas protection device lacks effective combustion protection and timely processing alarm effect, resulting in gas leakage during transmission cannot be detected in a short time, which is easy to cause safety accidents. In view of this, we propose a protection device for the gas inlet pipe to solve the above problem. Utility Model Content

[0008] The utility model aims to provide a protection device for a gas inlet pipe in view of the problems existing in the background technology.

[0009] The technical solution of the utility model is as follows: a protective device for a gas inlet pipe, comprising a box body, a cylinder, a combustion chamber one and a combustion chamber two, a pressure detection gauge is arranged on the surface of the box body, a connecting pipe is arranged on the outer wall of one side of the box body, the connecting pipe is connected with the cylinder, an alarm is arranged on the upper end of the cylinder, a combustion chamber one is arranged on the lower end of the cylinder, a combustion chamber two is arranged on the upper end of the combustion chamber one, a position sensor is arranged on the inner wall of the upper end of the combustion chamber two, and the alarm is electrically connected to the position sensor.

[0010] When the device is in use, the box can be installed on one side of the main body. When there is a gas leak in the transmission pipe, the gas will be stored inside the box first. At this time, the pressure detection gauge can detect that there is gas overflowing from the box, and then enters from the air inlet. When the pressure reaches a certain level, the one-way valve one is turned on, and the gas enters the combustion chamber one to cooperate with the igniter to burn. Combustion has certain benefits. The gas can be consumed to avoid enrichment and causing a larger explosion. The gas generated after combustion enters the combustion chamber two through the one-way valve two, and pushes the piston to move upward. After touching the position sensor, the alarm senses the alarm. Due to the setting of the one-way valve one and the one-way valve two, this alarm is intermittent, which is convenient for personnel to know the situation.

[0011] Preferably, a one-way valve is provided inside the connecting pipe, and an air inlet hole connecting the connecting pipe and the box body is provided on the box body.

[0012] Preferably, a one-way valve 2 is provided between the combustion chamber 1 and the combustion chamber 2.

[0013] Preferably, an igniter is provided on the outer wall of one side of the second combustion chamber, and a piston is provided inside the second combustion chamber.

[0014] Preferably, a pressure relief valve is provided on the outer wall of the upper end of the box body.

[0015] Preferably, an outer wall on one side of the box is connected to the main body, and a transmission pipe is provided inside the box.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. When the utility model is in use, the box body can be used to achieve a temporary sealing effect of the gas, and the internal gas content can be detected in conjunction with a pressure detector, and the gas can be discharged using a pressure relief valve within a reasonable value range.

[0018] 2. Based on beneficial effect 1, the device can utilize the leaking gas combustion alarm processing method to achieve short-term protection and alarm effects, and has high reliability and safety.

[0019] 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

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 It is a side view schematic diagram of the utility model;

[0022] Figure 3 It is a main schematic diagram of the utility model;

[0023] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0024] Reference numerals:

[0025] 1. Box body; 2. Transmission pipe; 3. Pressure relief valve; 4. Pressure detection gauge; 5. Cylinder; 6. Alarm; 7. Main body; 8. Connecting pipe; 9. One-way valve 1; 10. Ignitor; 11. One-way valve 2; 12. Piston; 13. Position sensor; 14. Combustion chamber 2; 15. Combustion chamber 1; 16. Air inlet. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] See also Figure 1-Figure 4 As shown, this embodiment is a protection device for a gas inlet pipe, comprising a box body 1, a cylinder 5, a combustion chamber 1 15 and a combustion chamber 2 14. A pressure detection gauge 4 is arranged on the surface of the box body 1, a connecting pipe 8 is arranged on the outer wall of one side of the box body 1, the upper end of the connecting pipe 8 is connected to the cylinder 5, an alarm 6 is arranged on the upper end of the cylinder 5, a combustion chamber 15 is arranged at the lower end of the cylinder 5, a combustion chamber 2 14 is arranged at the upper end of the combustion chamber 15, a position sensor 13 is arranged on the inner wall of the upper end of the combustion chamber 2 14, and the alarm 6 is electrically connected to the position sensor 13. The alarm 6 is a common alarm device, and no excessive structural description is made. The position sensor 13 can mainly trigger signal transmission when the piston 12 hits it, and the alarm 6 is controlled by the rear end to emit a sound to remind the approaching person of danger;

[0032] When the device is in use, the box body 1 can be installed on one side of the main body 7. When the transmission tube 2 leaks, the gas will be stored inside the box body 1 first. At this time, the pressure detection gauge 4 can detect that there is gas overflowing from the box body 1, and then enters from the air inlet. When the pressure reaches a certain level, the one-way valve 9 is turned on, and the gas enters the combustion chamber 15 to cooperate with the igniter 10 to burn. Combustion has certain benefits. The gas can be consumed to avoid enrichment and causing a larger explosion. The gas generated after combustion passes through the one-way valve 11 and enters the combustion chamber 14. After pushing the piston 12 to move upward and touch the position sensor 13, the alarm 6 senses the alarm. Due to the setting of the one-way valve 9 and the one-way valve 11, this alarm is intermittent, which is convenient for personnel to know the situation.

[0033] Example 2

[0034] See also Figure 1-Figure 4 As shown, this embodiment is based on the embodiment 1 and also includes: a one-way valve 9 is arranged inside the connecting pipe 8, and an air inlet 16 connecting the connecting pipe 8 and the box body 1 is opened on the box body 1. The one-way valve 9 can guide a part of the gas into the combustion chamber 15 after the gas inside the connecting pipe 8 reaches a certain pressure.

[0035] A one-way valve 11 is provided between the combustion chamber 1 15 and the combustion chamber 2 14 . The one-way valve 11 can generate pressure after the gas in the combustion chamber 1 15 explodes, and release part of the pressure into the combustion chamber 2 14 .

[0036] An igniter 10 is disposed on the outer wall of one side of the combustion chamber 2 14 , and a piston 12 is disposed inside the combustion chamber 2 14 . The igniter 10 can ignite the gas when it enters the combustion chamber 1 15 , causing it to burn.

[0037] A pressure relief valve 3 is provided on the outer wall of the upper end of the box body 1. When the pressure detection gauge 4 is within the controllable value range, the pressure relief valve 3 can be used manually to discharge the gas inside the box body 1.

[0038] The outer wall of one side of the box body 1 is connected to the main body 7. A transmission pipe 2 is arranged inside the box body 1. The box body 1 is connected to the outer wall of the device main body 7, which can reduce the bending of the connecting pipe 8 and play a certain protective effect.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protection device for a gas inlet pipe, comprising a housing (1), a cylinder (5), a first combustion chamber (15) and a second combustion chamber (14), characterized in that: A pressure detection gauge (4) is provided on the surface of the box body (1); a connecting pipe (8) is provided on the outer wall of one side of the box body (1); a cylinder (5) is provided on the upper end of the connecting pipe (8); an alarm (6) is provided on the upper end of the cylinder (5); a combustion chamber 1 (15) is provided at the lower end of the cylinder (5); a combustion chamber 2 (14) is provided at the upper end of the combustion chamber 1 (15); a position sensor (13) is provided on the inner wall of the upper end of the combustion chamber 2 (14); and the alarm (6) is electrically connected to the position sensor (13).

2. A protection device for a gas inlet pipe according to claim 1, characterized in that: A one-way valve (9) is arranged inside the connecting pipe (8), and an air inlet (16) for connecting the connecting pipe (8) and the box body (1) is provided on the box body (1).

3. A protection device for a gas inlet pipe according to claim 1, characterized in that: A one-way valve 2 (11) is provided between the combustion chamber 1 (15) and the combustion chamber 2 (14).

4. A protection device for a gas inlet pipe according to claim 1, characterized in that: An igniter (10) is disposed on an outer wall of one side of the second combustion chamber (14), and a piston (12) is disposed inside the second combustion chamber (14).

5. A protection device for a gas inlet pipe according to claim 1, characterized in that: A pressure relief valve (3) is provided on the outer wall of the upper end of the box body (1).

6. A protection device for a gas inlet pipe according to claim 1, characterized in that: An outer wall on one side of the box body (1) is connected to the main body (7), and a transmission pipe (2) is arranged inside the box body (1).

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