On-site detection device and method for air leakage of civil air defense protection equipment

Abstract

The present invention discloses an on-site detection device for air leakage of protective equipment for civil air defense projects, comprising: a left sealed box and a right sealed box, the left sealed box and the right sealed box are open on one side close to the sealed door, a circle of sealing frames are fixedly arranged on the edge of one side close to the sealed door of the left sealed box and the right sealed box, and a circle of sealing strips are fixedly arranged on the side close to the sealed door of the sealing frame; an air inlet is provided on the top of the left sealed box, and an air outlet is provided on the left bottom of the left sealed box, and the air outlet is connected to an air suction mechanism. The present invention generates a smoke ball of red smoke by burning, and the red smoke particles that pass through the sealed door are melted into water and collected, and the water is evaporated and the weight of the red smoke is detected, so that the air leakage of the sealed door can be detected. The present invention has a compact structure, a small overall size, a low cost, and is suitable for promotion.

Description

Technical Field

[0001] The present invention relates to the field of civil air defense protection equipment detection, and in particular to an on-site detection device and method for air leakage of civil air defense engineering protection equipment. Background Art

[0002] Civil air defense protection equipment refers to various opening protection equipment for civil air defense projects to resist the destructive effects of weapons, including closed doors. When testing the sealing of closed doors, civil air defense protection closed door sealing performance detection devices are often used. According to market inquiries, the price of a civil air defense protection closed door sealing performance detection device is about 70,000 yuan, which is very expensive and has a large size. For example, a civil air defense protection closed door sealing performance detection device produced by a certain company has an overall size (length × width × height) of 6800mm × 3000mm × 4050mm, and requires a crane of ≥5T, which is inconvenient to use. Summary of the invention

[0003] The purpose of the present invention is to provide an on-site detection device and method for air leakage of civil air defense engineering protective equipment to solve the above-mentioned technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An on-site detection device for air leakage of protective equipment for civil air defense projects comprises: a left sealed box and a right sealed box, wherein the left sealed box and the right sealed box are open on one side close to a closed door, a circle of sealing frames are fixedly arranged on the edge of the side close to the closed door of the left sealed box and the right sealed box, and a circle of sealing strips are fixedly arranged on the side close to the closed door of the sealing frame; an air inlet is arranged on the top of the left sealed box, an air outlet is arranged on the left bottom of the left sealed box, and the air outlet is connected to an air suction mechanism.

[0006] Preferably, the air suction mechanism includes a suction fan, which is fixedly connected to the left sealing box, the air inlet end of the suction fan is fixedly connected and connected to the air outlet, the air outlet end of the suction fan is fixedly connected and connected to the upper end of the air outlet pipe, an evaporator cylinder is fixedly provided on the left side of the suction fan, the lower end of the air outlet pipe extends into the evaporator cylinder, and a heater is installed at the bottom of the evaporator cylinder.

[0007] Preferably, a filter tube is threadedly connected to the lower end of the air outlet pipe, a plurality of water seepage holes are opened on the side of the filter tube, a first cover plate is threadedly connected to the top of the filter tube, a filter cloth is fixed to the bottom of the first cover plate, and a plurality of ventilation holes are opened on the first cover plate.

[0008] Preferably, a rotating shaft is fixedly provided at the center of the top surface of the first cover plate.

[0009] Preferably, a second cover plate is threadedly connected to the top of the evaporating tube, an air outlet pipe is fixedly provided through the center of the second cover plate, the upper end of the air outlet pipe is fixedly connected to the lower end of the hose, the upper end of the hose is fixedly connected to and communicated with the middle of the slide tube, a third cover plate is fixedly provided on the top of the slide tube, the third cover plate is connected to the left sealing box through a first hinge, a pressure relief hole is opened through the center of the third cover plate, a sliding rod is slidably connected in the slide tube, the lower end of the sliding rod is connected to the bottom plate through a second hinge, and the bottom plate is connected to the ground through a plurality of screws.

[0010] Preferably, a combustion box is fixedly provided in the right sealed box.

[0011] Preferably, the bottom of the left sealed box and the bottom of the right sealed box are both fixedly provided with a base, and the bottom of the base is equipped with a plurality of universal wheels.

[0012] Preferably, the slide cylinder and the slide rod have the same length.

[0013] A detection method for an on-site detection device for air leakage of civil air defense protection equipment comprises the following steps:

[0014] Step 1: Place the left sealed box and the right sealed box on the inside and outside of the closed door respectively, fill the evaporator with water, light the smoke ball that can produce red smoke, and then place it in the combustion box, press the right sealed box against the wall from the right to cover the closed door, and press the left sealed box against the wall from the left to cover the closed door;

[0015] Step 2: The red smoke generated by the burning of the smoke ball is transmitted from the right side to the left side through the leakage point on the sealed door, and the suction fan is started. The suction fan extracts the air in the left sealed box from the air outlet and discharges it into the evaporation tube. The external air is replenished into the left sealed box from the air inlet. The filter cloth intercepts the red smoke particles in the extracted air and dissolves them into water. At the same time, the heater is started to evaporate the water in the evaporation tube, leaving the red smoke particles.

[0016] Step 3: Determine the tightness of the closed door based on the amount of red smoke particles.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention generates a smoke ball of red smoke by burning, and collects the red smoke particles that pass through the sealed door by melting into water. The water is evaporated and the weight of the red smoke is detected, so that the leakage of the sealed door can be detected. The present invention has a compact structure, a small overall size, a low cost, and is suitable for promotion.

[0019] 2. The present invention has good sealing performance and high detection accuracy. First, the smoke ball consumes oxygen when burning in the right sealed box 12, so that negative pressure is generated in the right sealed box, so that the right sealed box is firmly adsorbed on the wall. Secondly, the steam generated by heating the water in the evaporator enters the slide cylinder, driving the slide rod in the slide cylinder to move, so that the slide cylinder drives the left sealed box to press against the wall. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0022] Figure 3 for Figure 1 A magnified schematic diagram of part B;

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of the C portion;

[0024] Figure numerals: 1. sealing strip; 2. sealing frame; 3. air inlet; 4. left sealing box; 5. airtight door; 6. screw; 7. slide tube; 8. hose; 9. slide rod; 10. bottom plate; 11. wall; 12. right sealing box; 13. combustion box; 14. base; 15. universal wheel; 16. air outlet; 17. suction fan; 18. filter cloth; 19. air outlet pipe; 20. second cover plate; 21. evaporating tube; 22. air outlet pipe; 23. first hinge; 24. pressure relief hole; 25. third cover plate; 26. rotating shaft; 27. air vent; 28. filter tube; 29. ​​water seepage hole; 30. first cover plate; 31. heater. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0026] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1-4As shown, an on-site detection device for air leakage of civil air defense engineering protective equipment includes: a left sealed box 4 and a right sealed box 12, the bottom of the left sealed box 4 and the right sealed box 12 are fixedly provided with a base 14, the bottom of the base 14 is installed with a plurality of universal wheels 15, a combustion box 13 is fixedly provided in the right sealed box 12, the left sealed box 4 and the right sealed box 12 are open on one side close to the closed door 5, a circle of sealing frame 2 is fixedly provided on the edge of one side close to the closed door 5 of the left sealed box 4 and the right sealed box 12, and a circle of sealing strip 1 is fixedly provided on the side close to the closed door 5 of the sealing frame 2; an air inlet 3 is opened on the top of the left sealed box 4, an air outlet 16 is opened on the left bottom of the left side of the left sealed box 4, and the air outlet 16 is connected to the air suction mechanism.

[0029] The air suction mechanism includes a suction fan 17, which is fixedly connected to the left sealed box 4, an air inlet end of the suction fan 17 is fixedly connected and communicated with the air outlet 16, and an air outlet end of the suction fan 17 is fixedly connected and communicated with the upper end of the air outlet pipe 22. An evaporator tube 21 is fixedly arranged on the left side of the suction fan 17, and the lower end of the air outlet pipe 22 extends into the evaporator tube 21, and a heater 31 is installed at the bottom of the evaporator tube 21; a filter tube 28 is threadedly connected to the lower end of the air outlet pipe 22, a plurality of water seepage holes 29 are opened on the side of the filter tube 28, a first cover plate 30 is threadedly connected to the top of the filter tube 28, a filter cloth 18 is fixedly arranged at the bottom of the first cover plate 30, and a plurality of ventilation holes 27 are opened on the first cover plate 30; a rotating shaft 26 is fixedly arranged at the center of the top surface of the first cover plate 30.

[0030] Working principle: the left sealed box 4 and the right sealed box 12 are placed on the inner and outer sides of the closed door 5 respectively, the evaporation tube 21 is filled with water, the smoke ball that can generate red smoke is ignited and then placed in the combustion box 13, the right sealed box 12 is pressed against the wall 11 from the right side to cover the closed door 5, and the left sealed box 4 is pressed against the wall from the left side to cover the closed door 5. The red smoke generated by the burning of the smoke ball is transmitted from the right side to the left side through the leakage point on the closed door 5, and the suction fan 17 is started. The suction fan 17 draws the air in the left sealed box 4 from the air outlet 16 and discharges it into the evaporation tube 21 (external air is supplemented into the left sealed box 4 from the air inlet 3), the filter cloth 18 intercepts the red smoke particles in the extracted air and dissolves them in water, and at the same time, the heater 31 is started to evaporate the water in the evaporation tube 21, leaving red smoke particles, and the sealing of the closed door 5 is judged according to the number of red smoke particles.

[0031] Example 2

[0032] like Figure 1-4As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that: the top of the evaporating tube 21 is threadedly connected with a second cover plate 20, and an air outlet pipe 19 is fixedly provided in the center of the second cover plate 20, and the upper end of the air outlet pipe 19 is fixedly connected to the lower end of the hose 8, and the upper end of the hose 8 is fixedly connected to and communicated with the middle of the slide 7, and a third cover plate 25 is fixedly provided on the top of the slide 7, and the third cover plate 25 is connected to the left sealed box 4 through a first hinge 23, and a pressure relief hole 24 is provided through the center of the third cover plate 25, and a slide bar 9 is slidably connected in the slide 7, and the lower end of the slide bar 9 is connected to the bottom plate 10 through a second hinge, and the bottom plate 10 is connected to the ground through a plurality of screws 6, and the slide 7 is the same length as the slide bar 9. When the water in the evaporating tube 21 is heated, the generated steam enters the slide 7 through the air outlet pipe 19 and the hose 8, so that the air pressure in the slide 7 increases, and the slide bar 9 in the slide 7 is driven to move, so that the slide 7 drives the left sealed box 4 to press against the wall 11. The pressure relief hole 24 is provided for exhausting the gas, so as to prevent the air pressure in the slide cylinder 7 from being too high.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] 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. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An on-site detection device for air leakage of civil air defense protection equipment, characterized in that: include: A left sealed box (4) and a right sealed box (12), wherein the left sealed box (4) and the right sealed box (12) are open at one side close to the sealed door (5), a circle of sealing frames (2) are fixedly provided at the edge of one side close to the sealed door (5), and a circle of sealing strips (1) are fixedly provided at one side of the sealing frame (2) close to the sealed door (5); The top of the left sealed box (4) is provided with an air inlet (3), the bottom of the left side of the left sealed box (4) is provided with an air outlet (16), and the air outlet (16) is connected to an air suction mechanism; The air suction mechanism comprises a suction fan (17), the suction fan (17) is fixedly connected to the left sealing box (4), the air inlet end of the suction fan (17) is fixedly connected to and communicated with the air outlet (16), the air outlet end of the suction fan (17) is fixedly connected to and communicated with the upper end of the air outlet pipe (22), an evaporation cylinder (21) is fixedly arranged on the left side of the suction fan (17), the lower end of the air outlet pipe (22) extends into the evaporation cylinder (21), and a heater (31) is installed at the bottom of the evaporation cylinder (21); The lower end of the air outlet pipe (22) is threadedly connected to a filter pipe (28), a side of the filter pipe (28) is provided with a plurality of water seepage holes (29), the top of the filter pipe (28) is threadedly connected to a first cover plate (30), a filter cloth (18) is fixedly arranged at the bottom of the first cover plate (30), and a plurality of ventilation holes (27) are provided on the first cover plate (30); The top of the evaporating cylinder (21) is threadedly connected with a second cover plate (20), and an air outlet pipe (19) is fixedly provided through the center of the second cover plate (20), and the upper end of the air outlet pipe (19) is fixedly connected to the lower end of the hose (8), and the upper end of the hose (8) is fixedly connected to and communicated with the middle of the slide cylinder (7). A third cover plate (25) is fixedly provided on the top of the slide cylinder (7), and the third cover plate (25) is connected to the left sealing box (4) through a first hinge (23). A pressure relief hole (24) is opened through the center of the third cover plate (25), and a sliding rod (9) is slidably connected in the slide cylinder (7), and the lower end of the sliding rod (9) is connected to the bottom plate (10) through a second hinge, and the bottom plate (10) is connected to the ground through a plurality of screws (6); A combustion box (13) is fixedly arranged in the right sealed box (12).

2. According to claim 1, a device for detecting air leakage on site of protective equipment for civil air defense projects, characterized in that: A rotating shaft (26) is fixedly provided at the center of the top surface of the first cover plate (30).

3. The on-site detection device for air leakage of civil air defense protection equipment according to claim 2 is characterized in that: The bottoms of the left sealed box (4) and the right sealed box (12) are both fixedly provided with bases (14), and the bottoms of the bases (14) are provided with a plurality of universal wheels (15).

4. The on-site detection device for air leakage of civil air defense protection equipment according to claim 3 is characterized in that: The slide cylinder (7) and the slide rod (9) have the same length.

5. The detection method of the on-site detection device for air leakage of civil air defense protection equipment according to claim 4 is characterized by: The steps include: Step 1: Place the left sealed box (4) and the right sealed box (12) on the inner and outer sides of the sealed door (5), fill the evaporation tube (21) with water, ignite the smoke ball that can generate red smoke when burned, and then place it in the combustion box (13), press the right sealed box (12) against the wall (11) from the right side to cover the sealed door (5), and press the left sealed box (4) against the wall from the left side to cover the sealed door (5); Step 2: The red smoke generated by the burning of the smoke ball is transmitted from the right side to the left side through the leakage point on the sealed door (5), and the suction fan (17) is started. The suction fan (17) draws the air in the left sealed box (4) from the air outlet (16) and discharges it into the evaporation tube (21). The external air is replenished into the left sealed box (4) from the air inlet (3). The filter cloth (18) intercepts the red smoke particles in the drawn air and dissolves them into water. At the same time, the heater (31) is started to evaporate the water in the evaporation tube (21), leaving the red smoke particles. Step 3: Determine the tightness of the sealed door (5) based on the amount of red smoke particles.

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