Airtightness detection tool for smoke collection module

Abstract

The utility model relates to the technical field of air tightness detection, and discloses a smoke collection module air tightness detection tool which comprises an outer shell, one end of the outer shell is a connector opening of a smoke transmission pipeline, a sealing cover is embedded in one end of the connector opening, a hand-screwing bolt is arranged on the inner side of the sealing cover in a penetrating mode, and the hand-screwing bolt is connected with the connector opening. A fixing support is fixedly installed in the outer shell, and a smoke collecting module body is fixedly installed in the fixing support. According to the utility model, the joint port at one end of the outer shell can be quickly sealed through the sealing cover and the hand-screwing bolt, and the sealing effect is good; after the threaded plug is detached, the air extracting pump and the pressure gauge are connected with the external threaded port, so that whether the tool leaks air or not can be detected, and the detection is simple, convenient and rapid; and the sealing performance between the external threaded opening and the threaded plug can be improved through the sealing ring, so that the phenomenon of air leakage at the external threaded opening is avoided during normal smoke detection.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to an air tightness detection tooling for a smoke collection module. Background Art

[0002] The flue gas sampling module is a device used to collect and analyze pollutants in flue gas. It introduces flue gas samples, and after pretreatment and sampling, finally obtains samples that need to be analyzed and tested; this facilitates environmental monitoring and pollutant analysis, thereby evaluating the degree of flue gas pollution and taking corresponding control measures.

[0003] Since the sampling module of the flue gas online monitoring system is used at the pollution source site for a long time, the pollution source site environment is relatively harsh and is easily corroded. It is likely that the gas transmission pipelines and joints will age and be poorly sealed and leaky, so airtightness testing is required.

[0004] However, the current smoke sampling module is inconvenient to detect, and it is common to quickly seal the joint port connected to the smoke transmission pipeline, and the sealing effect is poor. Utility Model Content

[0005] The utility model aims to provide a smoke extraction module airtightness detection tool to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A smoke collection module airtightness detection tool comprises an outer shell, one end of which is a joint port of a smoke transmission pipeline, one end of which is embedded with a sealing cover, an inner side of which is penetrated by a hand-tightened bolt, a fixing bracket is fixedly installed inside the outer shell, and a smoke collection module body is fixedly installed inside the fixing bracket.

[0008] As a further solution of the utility model: an external threaded opening is opened on one end of the outer shell away from the sealing cover, the inner side of the external threaded opening is engaged with a threaded plug, and a sealing ring is arranged between the external threaded opening and the threaded plug.

[0009] As a further solution of the utility model: the sealing cover is a component made of polytetrafluoroethylene.

[0010] As a further solution of the utility model: the fixed bracket includes a clamp and a fastening sleeve located at one end of the inner side of the clamp, a plurality of connecting rods are fixedly connected between the clamp and the fastening sleeve, the inner side of the fastening sleeve is provided with an internal thread groove matching the hand-tightened bolts, and the front and rear ends of the outer side of the clamp are fixedly connected with a group of fixing rods, and the fixing rods are provided with mounting holes.

[0011] As a further solution of the utility model: the upper end of the inner side of the clamp is meshed and connected with a screw, and the clamp is sleeved on the smoke collection module body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can quickly seal the joint port at one end of the outer shell body through the sealing cover and the hand-tightened bolt, and the sealing effect is good; after removing the threaded plug, the vacuum pump and the pressure gauge are connected to the external threaded port, so that whether the tool is leaking can be detected, and the detection is simple, convenient and fast; and the sealing between the external threaded port and the threaded plug can be improved by the sealing ring, so that when the smoke is normally detected, no leakage will occur at the external threaded port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial cross-sectional schematic diagram of a smoke collection module airtightness detection tooling;

[0015] Figure 2 This is a schematic diagram of the exploded structure of a smoke collection module airtightness detection tooling;

[0016] Figure 3 The figure is a schematic diagram of the structure of a fixed bracket in a smoke collection module airtightness detection tooling.

[0017] In the figure: 1. outer shell; 2. fixing bracket; 21. clamp; 22. fastening sleeve; 23. screw; 24. mounting hole; 25. connecting rod; 26. internal thread groove; 27. fixing rod; 3. sealing cover; 4. hand-tightening bolt; 5. smoke extraction module body; 6. external threaded port; 7. sealing ring; 8. threaded plug. DETAILED DESCRIPTION

[0018] See also Figures 1 to 3 In the embodiment of the utility model, a smoke collection module airtight detection tooling includes an outer shell 1, one end of the outer shell 1 is a joint port of the smoke transmission pipeline, one end of the joint port is embedded with a sealing cover 3, the inner side of the sealing cover 3 is penetrated by a hand screw 4, a fixing bracket 2 is fixedly installed inside the outer shell 1, and a smoke collection module body 5 is fixedly installed inside the fixing bracket 2. When monitoring the smoke, unscrew the hand screw 4, remove the sealing cover 3, connect the joint port with the external smoke transmission pipeline, and the smoke in the smoke transmission pipeline enters the outer shell 1, and the composition and concentration of the smoke are detected through the smoke collection module body 5.

[0019] exist Figure 1 and Figure 2In the embodiment, an external threaded opening 6 is provided on one end of the outer shell 1 away from the sealing cover 3, and the inner side of the external threaded opening 6 is meshedly connected to a threaded plug 8, and a sealing ring 7 is provided between the external threaded opening 6 and the threaded plug 8, and the sealing ring 7 is used to improve the sealing between the external threaded opening 6 and the threaded plug 8, so that when the smoke is normally detected, the external threaded opening 6 does not leak; when it is necessary to detect the sealing of the tooling, the joint opening is sealed by the sealing cover 3 and the hand-tightening bolt 4; after unscrewing the threaded plug 8 counterclockwise, the vacuum pump is connected to the external threaded opening 6 through the air pipe, and a pressure gauge is installed on the air pipe, and the interior of the outer shell 1 is evacuated by the vacuum pump, and the change value of the pressure gauge is observed within the set time to see whether it meets the requirements, so as to detect whether the tooling is leaking.

[0020] Preferably, the sealing cover 3 is a component made of polytetrafluoroethylene, so as to improve the sealing effect between the joint port at one end of the outer shell 1 and the sealing cover 3 .

[0021] exist Figure 1 and Figure 3 In the embodiment, the fixing bracket 2 includes a clamp 21 and a fastening sleeve 22 located at one end of the inner side of the clamp 21, and a plurality of connecting rods 25 are fixedly connected between the clamp 21 and the fastening sleeve 22. An internal thread groove 26 matching the hand screw 4 is provided on the inner side of the fastening sleeve 22, and a group of fixing rods 27 are fixedly connected to the front and rear ends of the outer side of the clamp 21. The fixing rods 27 are provided with mounting holes 24. The screws are inserted into the mounting holes 24 and meshed with the inner side wall of the outer shell 1, so that the fixing bracket 2 can be firmly fixed in the outer shell 1; by meshing the hand screw 4 with the inner side of the internal thread groove 26, the sealing cover 3 can be firmly fixed on the joint port, and the upper end of the inner side of the clamp 21 is meshed with a screw 23, and the clamp 21 is sleeved on the smoke collecting module body 5. By tightening the screw 23, the smoke collecting module body 5 can be firmly fixed in the clamp 21, thereby keeping the smoke collecting module body 5 stable.

[0022] Working principle of the utility model: when it is necessary to detect whether the tooling is leaking, first, remove the tooling from the gas transmission pipeline; then embed the sealing cover 3 into the interface at one end of the outer shell 1; then pass the hand screw 4 through the inner side of the sealing cover 3, and make one end of the hand screw 4 embedded in the internal thread groove 26, then, turn the hand screw 4 clockwise, one end of the hand screw 4 continues to enter the internal thread groove 26, and at the same time, the other end of the hand screw 4 squeezes the sealing cover 3, and the sealing cover 3 is firmly fixed on the joint port;

[0023] Next, unscrew the threaded plug 8 counterclockwise, connect the vacuum pump to the external threaded port 6 through the air pipe, and install a pressure gauge on the air pipe; then use the vacuum pump to evacuate the interior of the outer shell 1, and observe whether the change value of the pressure gauge meets the requirements within the set time, so as to detect whether the tooling is leaking.

[0024] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A smoke collection module airtightness detection tool, comprising an outer shell (1), characterized in that: One end of the outer shell (1) is a joint port of a smoke transmission pipeline, one end of the joint port is embedded with a sealing cover (3), the inner side of the sealing cover (3) is penetrated by a hand-tightened bolt (4), the interior of the outer shell (1) is fixedly installed with a fixing bracket (2), and the interior of the fixing bracket (2) is fixedly installed with a smoke extraction module body (5).

2. The airtightness detection tool for smoke extraction module according to claim 1 is characterized in that: An external threaded opening (6) is provided on one end of the outer shell (1) away from the sealing cover (3); the inner side of the external threaded opening (6) is meshedly connected to a threaded plug (8); and a sealing ring (7) is provided between the external threaded opening (6) and the threaded plug (8).

3. The airtightness detection tool for smoke extraction module according to claim 1 is characterized in that: The sealing cover (3) is a component made of polytetrafluoroethylene.

4. The airtightness detection tool for smoke extraction module according to claim 1, characterized in that: The fixing bracket (2) comprises a clamp (21) and a fastening sleeve (22) located at one end of the inner side of the clamp (21); a plurality of connecting rods (25) are fixedly connected between the clamp (21) and the fastening sleeve (22); an inner thread groove (26) matching the hand-tightening bolt (4) is provided on the inner side of the fastening sleeve (22); a group of fixing rods (27) are fixedly connected at the front and rear ends of the outer side of the clamp (21); and mounting holes (24) are provided on the fixing rods (27).

5. The airtightness detection tool for smoke extraction module according to claim 4 is characterized in that: The upper end of the inner side of the clamp (21) is meshedly connected with a screw (23), and the clamp (21) is sleeved on the smoke extraction module body (5).

Images