Boiler gas leakage detection device

Abstract

The utility model discloses a boiler gas leakage detection device, which relates to the technical field of boiler equipment, and comprises a boiler body, one side of the boiler body is provided with a one-way valve, the one-way valve is connected with a connecting pipe, the connecting pipe is sleeved with a gas pipeline, an air bag is connected between the gas pipeline and the connecting pipe, and the air bag is connected with the connecting pipe. The joint of the gas pipeline and the connecting pipe is located in the air bag, and the top end and the bottom end of the one-way valve are both in threaded connection with wrenches. According to the utility model, when the one-way valve is loosened to cause gas leakage, leaked gas enters the air bag to expand the air bag, and the air bag expands to push the wrench to be automatically tightened, so that the gas is prevented from continuously leaking, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to a boiler gas leakage detection device. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy.

[0003] Many boilers use gas as their main fuel, which is transported to the boiler through a dedicated gas pipeline to support its combustion process. In order to ensure that the gas can be smoothly and stably transported to the boiler and prevent gas backflow or leakage, a one-way valve is usually installed on the gas pipeline to allow the gas to flow freely in one direction in the pipeline and prevent the gas from flowing in the opposite direction.

[0004] However, the boiler will generate vibration and stress during operation. These vibrations and stresses will act on the connection between the one-way valve and the gas pipeline for a long time, causing the connection to loosen. If the staff fails to find and retighten these loose connections in time, gas leakage may occur.

[0005] The existing solution relies on gas detectors to monitor the gas concentration in the air. Once a gas leak is detected, these detectors will immediately sound an alarm to remind staff to take appropriate measures. Although the warning effect is achieved, the gas will continue to leak into the air before the staff arrives at the scene and takes measures, which undoubtedly increases the potential safety risks. Utility Model Content

[0006] The purpose of the utility model is to provide a boiler gas leakage detection device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model provides a boiler gas leakage detection device, including a boiler body, a one-way valve is arranged on one side of the boiler body, the one-way valve is connected to a connecting pipe, the connecting pipe is sleeved with a gas pipeline, an air bag is connected between the gas pipeline and the connecting pipe, the connection between the gas pipeline and the connecting pipe is located inside the air bag, and the top and bottom ends of the one-way valve are both threadedly connected with a wrench.

[0008] Furthermore, the outer wall of the airbag is connected with a wire ring, and the inner wall of the airbag is in close contact with the outer wall of the connecting pipe and the gas pipeline.

[0009] Furthermore, a connecting plate is provided on one side of the wrench, and the connecting plate corresponds to the airbag.

[0010] Furthermore, the outer walls of the gas pipeline and the connecting pipe are both installed with fixing rings, mounting plates are provided on both sides of the fixing rings, a spring is connected between the fixing rings and the mounting plates, and the spring corresponds to the connecting plate.

[0011] Furthermore, a fixing block is installed at the bottom of one of the wrenches and the top of the other wrench, and the connecting plate is installed on the outer wall of the fixing block.

[0012] Furthermore, the outer wall and the inner wall of the airbag are both provided with wear-resistant and pressure-resistant layers, and the wear-resistant and pressure-resistant layers are located below the wire ring.

[0013] Furthermore, a wear-resistant layer is installed on the outer wall of the airbag, and the wear-resistant layer is located in a part of the area of ​​the airbag.

[0014] Furthermore, the diameter of the wire ring on the outer wall of the gas pipeline is smaller than the diameter of the wire ring on the outer wall of the connecting pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, when the one-way valve is loose and causes gas leakage, the leaked gas will enter the airbag to expand it. The expansion of the airbag pushes the wrench to automatically tighten it, preventing the gas from continuing to leak, thereby reducing safety risks.

[0017] 2. In the utility model, the fixing ring fixes the spring and the mounting plate. When the airbag expands, it is not easy to directly drive the wrench due to the small contact area. However, the mounting plate is pushed by the airbag, thereby pushing the wrench to rotate, ensuring that the wrench can be effectively driven. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the connection structure between the spring and the mounting plate in the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the air bag and the wire ring in the utility model;

[0021] Figure 4 for Figure 1 A magnified view of the structure at center A;

[0022] Figure 5 for Figure 2 A magnified view of the structure at B in the middle;

[0023] Figure 6 for Figure 3 Enlarged view of the structure at C in the middle.

[0024] In the figure: 1. Boiler body;

[0025] 2. Gas pipeline; 3. Check valve; 4. Wrench; 5. Fixing ring; 6. Spring; 7. Mounting plate; 8. Connecting pipe; 9. Air bag; 10. Wire ring; 11. Connecting plate; 12. Wear-resistant layer; 13. Wear-resistant and pressure-resistant layer; 14. Fixing block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0028] See also Figure 1-Figure 6 As shown, a boiler gas leakage detection device includes a boiler body 1, a one-way valve 3 is arranged on one side of the boiler body 1, the one-way valve 3 is fixedly connected to a connecting pipe 8, the connecting pipe 8 is sleeved with a gas pipeline 2, one end of the gas pipeline 2 extends to the inside of the boiler body 1, an air bag 9 is connected between the gas pipeline 2 and the connecting pipe 8, the connection between the gas pipeline 2 and the connecting pipe 8 is located inside the air bag 9, and the top and bottom ends of the one-way valve 3 are both threadedly connected with a wrench 4.

[0029] The one-way valve 3 is connected to the gas pipeline 2 through the connecting pipe 8. The gas is transmitted to the gas pipeline 2 through the one-way valve 3 and the connecting pipe 8. When the one-way valve 3 is loosened, the gas will leak from the connection between the connecting pipe 8 and the gas pipeline 2. After the gas enters the airbag 9, the airbag 9 will slowly expand. After the airbag 9 expands, it will resist the two wrenches 4, causing the wrenches 4 to be twisted to one side, thereby achieving the purpose of automatically tightening the wrenches 4, thereby preventing the gas from continuing to leak.

[0030] The upper wrench 4 is tightened by rotating counterclockwise, while the lower wrench 4 is tightened by rotating clockwise. The tightening position is first close to the airbag 9. If the two wrenches 4 are loose, they will only slightly deviate in the direction of the airbag 9. Then, when the airbag 9 expands, the wrench 4 can be pushed back to the original tightening position. Because the one-way valve 3 and the wrench 4 are loose, the wrench 4 will only slightly deviate and will not deviate significantly. Moreover, as long as the wrench 4 deviates, it will be close to the airbag 9, which makes it easier for the airbag 9 to resist the wrench 4.

[0031] See also Figure 2 The outer wall of the airbag 9 is fixedly connected with a wire ring 10, and the inner wall of the airbag 9 is in close contact with the outer wall of the connecting pipe 8 and the gas pipeline 2.

[0032] In order to prevent the gas from leaking from both ends of the airbag 9 after entering the airbag 9, the two ends of the airbag 9 are respectively fixed to the connecting pipe 8 and the gas pipeline 2 through a wire ring 10. The wire ring 10 is tightened to shrink the wire ring 10, so that the airbag 9 is tightly attached to the connecting pipe 8 and the gas pipeline 2, so that a seal is formed inside the airbag 9.

[0033] See also Figure 5 A connecting plate 11 is provided on one side of the wrench 4 , and the connecting plate 11 corresponds to the airbag 9 .

[0034] Timely tightening of the loosened one-way valve 3 connection is indeed an important emergency response measure, which can slow down or prevent further leakage to a certain extent. However, merely tightening the one-way valve 3 itself may not be enough to completely prevent further leakage, because the one-way valve 3 itself may be damaged. Therefore, when the airbag 9 expands and squeezes the wrench 4, the airbag 9 will first contact the connecting plate 11 and press the connecting plate 11. The squeezing of the connecting plate 11 will sound an alarm, reminding the surrounding staff that gas is leaking, so that the staff can discover and check it in time to distinguish whether the one-way valve 3 is loose or damaged.

[0035] See also Figure 2 and Figure 5 A fixing ring 5 is fixedly installed on the outer wall of the gas pipeline 2 and the connecting pipe 8, and mounting plates 7 are arranged on both sides of the fixing ring 5. A spring 6 is fixedly connected between the fixing ring 5 and the mounting plate 7, and the spring 6 corresponds to the connecting plate 11.

[0036] The fixing ring 5 fixes the spring 6 and the mounting plate 7 on the connecting pipe 8 and the gas pipeline 2. Since the wrench 4 is facing sideways to the corresponding airbag 9, the airbag 9 contacts the edge of the wrench 4 after expansion. Since the contact area is small, the wrench 4 is not easily moved. The mounting plate 7 blocks one side of the airbag 9. After the airbag 9 expands, the mounting plate 7 is pushed away from the airbag 9. The mounting plate 7 is used to push the wrench 4 to rotate, ensuring that the wrench 4 can be driven.

[0037] See also Figure 2 A fixing block 14 is fixedly mounted on the bottom of one wrench 4 and the top of the other wrench 4 , and the connecting plate 11 is fixedly mounted on the outer wall of the fixing block 14 .

[0038] The fixing block 14 is fixed on the wrench 4 and fixes the connecting plate 11 . The fixing block 14 enables the connecting plate 11 to be aligned with the mounting plate 7 , so that the mounting plate 7 can squeeze the connecting plate 11 .

[0039] See also Figure 6 The outer wall and the inner wall of the airbag 9 are fixedly mounted with a wear-resistant and pressure-resistant layer 13 , and the wear-resistant and pressure-resistant layer 13 is located below the wire ring 10 .

[0040] Since the wire ring 10 will squeeze one side of the airbag 9 after being tightened to make the airbag 9 fit with the gas pipeline 2 and the connecting pipe 8, the area of ​​the airbag 9 squeezed by the wire ring 10 is prone to wear. Therefore, the wear resistance is enhanced by the wear-resistant and pressure-resistant layer 13. The wear-resistant and pressure-resistant layer 13 adopts polyester fiber. First of all, the wear-resistant and pressure-resistant layer 13 made of polyester fiber has high tensile strength and toughness, and can be quickly unfolded and form a buffer during collision. At the same time, it also has good heat resistance and corrosion resistance. The wear-resistant and pressure-resistant layer 13 is a polymer compound made of organic dibasic acid and diol through condensation reaction. The molecular chain structure is stable and not easily destroyed by external factors, thereby giving the wear-resistant and pressure-resistant layer 13 excellent wear resistance.

[0041] See also Figure 6 A wear-resistant layer 12 is fixedly mounted on the outer wall of the airbag 9 , and the wear-resistant layer 12 is located in a part of the airbag 9 .

[0042] Since the outer wall of the airbag 9 needs to contact the mounting plate 7, friction will be generated during the contact process. Therefore, the outermost layer of the airbag 9 is connected to the wear-resistant layer 12. The wear-resistant layer 12 is made of polypropylene, which has high hardness and elastic modulus, which enables it to effectively resist the intrusion of foreign objects and reduce surface wear. In addition, the wear-resistant layer 12 also has good lubricity, which can reduce the friction coefficient and further reduce wear.

[0043] See also Figure 3 The diameter of the wire ring 10 on the outer wall of the gas pipeline 2 is smaller than the diameter of the wire ring 10 on the outer wall of the connecting pipe 8.

[0044] Since the diameter of the connecting pipe 8 is larger than the gas pipeline 2, the diameters of the two wire rings 10 are also different. The purpose is that the wire rings 10 can match the connecting pipe 8 and the gas pipeline 2 so that both ends of the airbag 9 can be fixed more tightly.

[0045] Working principle:

[0046] The one-way valve 3 is connected to the gas pipeline 2 through the connecting pipe 8. The gas is transmitted to the gas pipeline 2 through the one-way valve 3 and the connecting pipe 8. When the one-way valve 3 is loosened, the gas will leak from the connection between the connecting pipe 8 and the gas pipeline 2. After the gas enters the airbag 9, the airbag 9 will slowly expand. After the airbag 9 expands, it will resist the two wrenches 4, causing the wrenches 4 to be twisted to one side, thereby achieving the purpose of automatically tightening the wrenches 4, thereby preventing the gas from continuing to leak.

[0047] The upper wrench 4 is tightened by rotating counterclockwise, while the lower wrench 4 is tightened by rotating clockwise. The tightening position is first close to the airbag 9. If the two wrenches 4 are loose, they will only slightly deviate in the direction of the airbag 9. Then, when the airbag 9 expands, the wrench 4 can be pushed back to the original tightening position. Because the one-way valve 3 and the wrench 4 are loose, the wrench 4 will only slightly deviate and will not deviate significantly. Moreover, as long as the wrench 4 deviates, it will be close to the airbag 9, which makes it easier for the airbag 9 to resist the wrench 4.

[0048] The fixing ring 5 fixes the spring 6 and the mounting plate 7 on the connecting pipe 8 and the gas pipeline 2. Since the wrench 4 is facing sideways to the corresponding airbag 9, the airbag 9 contacts the edge of the wrench 4 after expansion. Since the contact area is small, the wrench 4 is not easily moved. The mounting plate 7 blocks one side of the airbag 9. After the airbag 9 expands, the mounting plate 7 is pushed away from the airbag 9. The mounting plate 7 is used to push the wrench 4 to rotate, ensuring that the wrench 4 can be driven.

Claims

1. A boiler gas leak detection device, comprising a boiler body (1), characterized in that: A one-way valve (3) is provided on one side of the boiler body (1); the one-way valve (3) is connected to a connecting pipe (8); the connecting pipe (8) is sleeved with a gas pipeline (2); an air bag (9) is connected between the gas pipeline (2) and the connecting pipe (8); the connection between the gas pipeline (2) and the connecting pipe (8) is located inside the air bag (9); and a wrench (4) is threadedly connected to the top and bottom ends of the one-way valve (3).

2. A boiler gas leak detection device as claimed in claim 1, characterized in that: The outer wall of the airbag (9) is connected to a wire ring (10), and the inner wall of the airbag (9) is in close contact with the outer walls of the connecting pipe (8) and the gas pipeline (2).

3. A boiler gas leak detection device as claimed in claim 2, characterized in that: A connecting plate (11) is provided on one side of the wrench (4), and the connecting plate (11) corresponds to the airbag (9).

4. A boiler gas leak detection device as claimed in claim 3, characterized in that: The outer walls of the gas pipeline (2) and the connecting pipe (8) are both installed with fixing rings (5), and mounting plates (7) are provided on both sides of the fixing ring (5). A spring (6) is connected between the fixing ring (5) and the mounting plate (7), and the spring (6) corresponds to the connecting plate (11).

5. A boiler gas leak detection device as claimed in claim 4, characterized in that: A fixing block (14) is installed at the bottom of one of the wrenches (4) and the top of the other wrench (4), and the connecting plate (11) is installed on the outer wall of the fixing block (14).

6. A boiler gas leak detection device as claimed in claim 5, characterized in that: The outer wall and the inner wall of the air bag (9) are both provided with a wear-resistant and pressure-resistant layer (13), and the wear-resistant and pressure-resistant layer (13) is located below the wire ring (10).

7. A boiler gas leak detection device as claimed in claim 6, characterized in that: The outer wall of the airbag (9) is provided with a wear-resistant layer (12), and the wear-resistant layer (12) is located in a part of the area of ​​the airbag (9).

8. A boiler gas leak detection device as claimed in claim 7, characterized in that: The diameter of the wire ring (10) on the outer wall of the gas pipeline (2) is smaller than the diameter of the wire ring (10) on the outer wall of the connecting pipe (8).

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