Waste gas emission monitoring device for industrial upstairs

Abstract

The utility model discloses a waste gas emission monitoring device for industrial upstairs, which comprises a waste gas collecting box and a sampling bottle, a gas suction pipe is arranged on one side of the waste gas collecting box, a pair of sampling ports formed by fixedly assembling gas inlet plates and thread bushings is fixedly mounted on the front side of the waste gas collecting box, and sealing covers are mounted on the sampling ports in a threaded manner. A plurality of air holes communicated with the waste gas collecting box are formed in the air inlet plate, a pressing plate is slidably installed at the position, corresponding to the sampling opening, of the inner side wall of the waste gas collecting box through an elastic component, and rubber plugs are fixedly installed at the positions, corresponding to the air holes, of the side wall of the pressing plate; the pressing plate horizontally moves to the rubber plug through the elastic component to abut against the air hole to block the sampling opening. Through cooperation of the pressing plate, the inserting rod, the spring, the rubber plug and the threaded sleeve, the sampling bottle is screwed on the threaded sleeve in place to drive the retraction air hole to open for air inflow, and compared with an existing tedious plugging structure, the sealing effect of the waste gas monitoring device is optimized, and meanwhile the input cost of equipment is effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas monitoring, specifically a waste gas emission monitoring device for industrial buildings. Background Art

[0002] Industrial relocation to high-rise buildings is a new industrial production model. Its core lies in relocating industrial production activities to high-rise buildings to improve land use efficiency and floor area ratio. With the acceleration of industrialization, industrial waste gas emissions have become increasingly prominent. In order to meet national environmental protection standards, the requirements for waste gas treatment technology in industrial relocation are becoming increasingly stringent. Waste gas sampling is a crucial part of waste gas emission monitoring. After sampling, the concentration of pollutants in the waste gas is determined by gas chromatography, mass spectrometry, and other methods.

[0003] Exhaust gas monitoring and sampling tools should possess sufficient characteristics such as non-pollution, air permeability, sealing, and stability to ensure sampling accuracy. Chinese patent application number 202321484470 discloses an exhaust gas monitoring and sampling device with good sealing performance. This device includes an exhaust gas monitoring and collection box, a suction fan installed on the box, and a suction pipe connected to the fan. An adjustable lifting and sealing assembly is installed inside the box, and a detachable sealing sampling assembly is installed on the outside. The box also includes a vertically arranged side-sealing sampling outer plate. This device allows for adjustable sealing of the sampling port according to sampling needs by adjusting the lifting and sealing assembly.

[0004] The aforementioned document describes how a hydraulic lifting rod is used to improve the sealing effect at the sampling port of the equipment. However, this requires operating a switch button to adjust the lifting of the hydraulic lifting rod, resulting in a complex structure and cumbersome operation, which increases the investment cost and subsequent maintenance of the equipment. Utility Model Content

[0005] The purpose of this utility model is to provide a waste gas emission monitoring device for industrial buildings, so as to solve the problem of cumbersome operation of the sampling port sealing component of the current waste gas emission monitoring equipment mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas emission monitoring device for industrial buildings, comprising a waste gas collection box with an intake pipe on one side and a sampling bottle. A pair of sampling ports, consisting of an air inlet plate and a threaded sleeve, are fixedly installed on the front side of the waste gas collection box. The sampling ports are threaded with caps. The air inlet plate has several air holes communicating with the waste gas collection box. A pressure plate is slidably installed on the inner side wall of the waste gas collection box at a position corresponding to the sampling port via an elastic member. Rubber plugs are fixedly installed on the side wall of the pressure plate at positions corresponding to the air holes, so that the pressure plate can move horizontally via the elastic member until the rubber plugs abut against the air holes to block the sampling port.

[0007] Preferably, a pair of sliding rods are fixedly installed on the inner side wall of the exhaust gas collection box, the pressure plate is slidably installed on the sliding rods, and a plurality of insert rods are fixedly installed on one side of the pressure plate, the ends of the insert rods extending through the air inlet plate.

[0008] Preferably, the elastic member is a spring sleeved on the slide rod, the end of the slide rod is threaded with a nut, and the two ends of the spring are in contact with the nut and the pressure plate, respectively.

[0009] Preferably, the pressure plate has a plurality of countersunk holes on its periphery for accommodating the insertion rod, and the countersunk holes are distributed in a circumferential pattern.

[0010] Preferably, the end of the insertion rod is a hemispherical structure.

[0011] Preferably, the air intake plate is provided with a plurality of circular holes for accommodating the insert rod, and a rubber ring is fixedly installed in the circular holes.

[0012] Preferably, the inner wall of the sampling bottle opening is provided with threads that are compatible with the threaded sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This utility model uses a combination of a pressure plate, a rod, a spring, a rubber plug, and a threaded sleeve to form a leak-proof waste gas sampling port at the waste gas collection box. The sampling bottle is screwed into the threaded sleeve, which causes the retractable air hole to open and allow air to enter. The structure is simple and easy to operate. Compared with the current more cumbersome sealing structure, this application effectively saves the investment cost of equipment while optimizing the sealing effect of the waste gas monitoring device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a partial three-dimensional structural diagram of the exhaust gas collection box of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the assembly of the pressure plate and sampling port of this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the pressure plate and sampling port of this utility model.

[0019] In the diagram: 1. Waste gas collection box; 2. Suction pipe; 3. Sampling bottle; 4. Cap; 5. Pressure plate; 6. Sliding rod; 7. Spring; 8. Insert rod; 9. Air inlet plate; 10. Air hole; 11. Threaded sleeve; 12. Rubber ring; 13. Rubber stopper; 14. Countersunk hole. DETAILED DESCRIPTION

[0020] The following will be combined with the 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.

[0021] Please see Figures 1-4This utility model provides a technical solution: a waste gas emission monitoring device for industrial buildings, including a waste gas collection box 1 with a suction pipe 2 on one side and a sampling bottle 3. A pair of sampling ports, consisting of an air inlet plate 9 and a threaded sleeve 11, are fixedly installed on the front side of the waste gas collection box 1. The inner wall of the sampling bottle 3 has a thread that matches the threaded sleeve 11. By installing the sampling bottle 3 at the sampling port, gas drawn into the waste gas collection box 1 by the suction pipe 2 is collected. The suction pipe 2, being of existing technology, has a check valve at its opening to prevent waste gas leakage when the sampling bottle 3 is removed. A cap 4 is threaded onto the sampling port to protect the sampling port during transportation of the waste gas collection box 1. The air inlet plate 9 has several points that correspond to the waste gas collection box... There are at least four interconnected vents 10. A pressure plate 5 is slidably installed on the inner wall of the waste gas collection box 1 at a position corresponding to the sampling port via an elastic component. A pair of sliding rods 6 are fixedly installed on the inner wall of the waste gas collection box 1, and the pressure plate 5 is slidably installed on the sliding rods 6. Multiple insertion rods 8 are fixedly installed on one side of the pressure plate 5. Multiple countersunk holes 14 for accommodating the insertion rods 8 are provided around the periphery of the pressure plate 5. The countersunk holes 14 are distributed in a circumferential pattern. The end of the insertion rod 8 extends to the through-air inlet plate 9. The end of the insertion rod 8 has a hemispherical structure. This design reduces friction with the sampling bottle 3. The air inlet plate 9 has multiple round holes for accommodating the insertion rods 8, and rubber rings 12 are fixedly installed in the round holes. This design aims to improve the sampling port. To achieve a good sealing effect, the elastic component is a spring 7 sleeved on the slide rod 6. A nut is threaded to the end of the slide rod 6. The two ends of the spring 7 are in contact with the nut and the pressure plate 5, respectively. Rubber plugs 13 are fixedly installed at the corresponding positions of the side wall of the pressure plate 5 and the air hole 10, so that the pressure plate 5 can move horizontally through the elastic component until the rubber plug 13 abuts against the air hole 10 to block the sampling port. In this application, when sampling, the sampling bottle 3 is aligned with the sampling port and screwed onto the threaded sleeve 11. During the installation process, the sampling bottle 3 will abut against the insertion rod 8 extending from the air inlet plate 9, and drive the insertion rod 8 to retract, causing the pressure plate 5 to compress the spring 7 and move horizontally on the slide rod 6 until the rubber plug 13 is away from the air hole 10. At this time, the waste gas collected in the waste gas collection box 1 is then... The sample 10 is inserted into the sampling bottle 3. After sampling is completed, the sampling bottle 3 is removed. The waste gas is stored in the sampling bottle 3 through the check valve itself. The spring 7 releases its elastic potential energy, causing the pressure plate 5 to slide on the slide rod 6 until the rubber stopper 13 contacts the air hole 10, sealing the air hole 10 to prevent waste gas leakage. This application forms a leak-proof waste gas sampling port at the waste gas collection box 1 through the cooperation of the pressure plate 5, the insert rod 8, the spring 7, the rubber stopper 13 and the threaded sleeve 11. The sampling bottle 3 is screwed into place on the threaded sleeve 11, causing the retracted air hole 10 to open and allow air to enter. The structure is simple and the operation is convenient. Compared with the current more cumbersome sealing structure, this application effectively saves the investment cost of equipment while optimizing the sealing effect of the waste gas monitoring device.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste gas emission monitoring device for industrial buildings, comprising a waste gas collection box (1) with a suction pipe (2) on one side and a sampling bottle (3), characterized in that: A pair of sampling ports consisting of an air inlet plate (9) and a threaded sleeve (11) are fixedly installed on the front side of the exhaust gas collection box (1). The sampling ports are threaded with a cap (4). The air inlet plate (9) is provided with several air holes (10) that communicate with the exhaust gas collection box (1). A pressure plate (5) is slidably installed on the inner side wall of the exhaust gas collection box (1) at the position corresponding to the sampling port through an elastic member. A rubber plug (13) is fixedly installed on the side wall of the pressure plate (5) at the position corresponding to the air hole (10) so that the pressure plate (5) can move horizontally through the elastic member until the rubber plug (13) abuts against the air hole (10) to block the sampling port.

2. The waste gas emission monitoring device for industrial buildings according to claim 1, characterized in that: A pair of slide rods (6) are fixedly installed on the inner side wall of the exhaust gas collection box (1). The pressure plate (5) is slidably installed on the slide rods (6). A plurality of insert rods (8) are fixedly installed on one side of the pressure plate (5). The ends of the insert rods (8) extend through the air inlet plate (9).

3. The waste gas emission monitoring device for industrial buildings according to claim 2, characterized in that: The elastic component is a spring (7) sleeved on the slide rod (6). The end of the slide rod (6) is threaded with a nut, and the two ends of the spring (7) are in contact with the nut and the pressure plate (5) respectively.

4. The waste gas emission monitoring device for industrial buildings according to claim 2, characterized in that: The pressure plate (5) has a plurality of countersunk holes (14) on its periphery for accommodating the insert rod (8), and the countersunk holes (14) are distributed in a circumferential pattern.

5. A waste gas emission monitoring device for industrial buildings as described in claim 2, characterized in that: The end of the insertion rod (8) is a hemispherical structure.

6. A waste gas emission monitoring device for industrial buildings as described in claim 2, characterized in that: The air intake plate (9) is provided with a plurality of round holes for accommodating the insert rod (8), and a rubber ring (12) is fixedly installed in the round holes.

7. The waste gas emission monitoring device for industrial buildings according to claim 1, characterized in that: The inner wall of the sampling bottle (3) is provided with a thread that is compatible with the threaded sleeve (11).

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