Chemical tail gas detection sensor and equipment

Abstract

The utility model relates to the technical field of sensors, in particular to a chemical tail gas detection sensor and equipment, which comprises a detection cylinder and a gas inlet pipe fixedly mounted at the lower part of the left side of the side wall of the detection cylinder, a gas outlet pipe is fixedly mounted at the upper part of the right side of the side wall of the detection cylinder, and a filter screen hopper is fixedly mounted in the middle of an inner cavity of the detection cylinder. An air detection unit is arranged at the position, located above the filter screen hopper, of an inner cavity of the detection barrel, a slag discharging pipe is slidably installed in the middle of the bottom face of the inner cavity of the detection barrel, a cleaning assembly is arranged in an inner cavity of the slag discharging pipe, and a sealing assembly is arranged on the side wall of an air inlet pipe. The sensor has the beneficial effects that particulate matters in chemical tail gas can be intercepted through the arrangement of the filter screen hopper, and meanwhile, the cleaning assembly is additionally arranged, so that the filter screen hopper can be automatically cleaned, holes of the filter screen hopper are prevented from being blocked by the particulate matters, and the detection quality and the service life of the air detection unit on the chemical tail gas are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a chemical tail gas detection sensor and equipment. Background Art

[0002] Chemical engineering is a science that studies the common laws of the production process of chemical products. Human beings have a close relationship with chemical industry. Some chemical products have played an epoch-making and important role in the history of human development. Their production and application even represent a certain historical stage of human civilization. Chemical tail gas, also known as chemical waste gas, refers to the toxic and harmful gases discharged by chemical plants during chemical production. In the process of treating chemical tail gas, it is necessary to wash it with alkali, so an alkali washing tower is needed. The alkali washing tower is a kind of equipment for environmentally purifying the waste gas generated by industrial production, and it is one of the waste gas purification tower products.

[0003] In the prior art, since the composition of chemical exhaust gas is complex and changeable, including a variety of gases and particulate matter, among which solid particulate matter, SO2, CO2, NO2 and other pollutants are the main pollutants, when detecting chemical exhaust gas, particulate matter can easily cause blockage of the air inlet and outlet of the detection device, thereby requiring workers to clean it regularly and frequently, resulting in poor use effect. Utility Model Content

[0004] The purpose of the utility model is to provide a chemical tail gas detection sensor and equipment to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Preferably, it includes a detection cylinder, and an air inlet pipe fixedly installed on the lower left part of the side wall of the detection cylinder, an air outlet pipe fixedly installed on the upper right part of the side wall of the detection cylinder, and is characterized in that: a filter net bucket is fixedly installed in the middle part of the inner cavity of the detection cylinder, an air detection unit is arranged above the filter net bucket in the inner cavity of the detection cylinder, a slag discharge pipe is slidably installed in the middle part of the bottom surface of the inner cavity of the detection cylinder, a cleaning assembly is arranged in the inner cavity of the slag discharge pipe, and a sealing assembly is arranged on the side wall of the air inlet pipe.

[0007] Preferably, the air inlet pipe is arranged below the filter net bucket, the air outlet pipe is arranged above the filter net bucket, the side wall and the bottom of the filter net bucket are provided with a plurality of groups of filter holes, and the outer side wall of the filter net bucket is fixedly mounted with guide blades.

[0008] Preferably, the guide blade is arranged in a conical vortex shape, the filter net bucket is arranged in a cup shape, a display unit electrically connected to the air detection unit is fixedly mounted on the upper end surface of the detection cylinder, and the filter net bucket is made of alloy steel.

[0009] Preferably, the cleaning assembly includes a rubber seat fixedly mounted on the upper end surface of the slag discharge pipe, and a load-bearing spring fixedly mounted on the lower end surface of the rubber seat, the other end of the load-bearing spring is fixedly mounted on the inner cavity bottom surface of the detection cylinder, and the inner cavity bottom surface of the detection cylinder is arranged in an inwardly concave shape.

[0010] Preferably, a filter residue groove is opened on the side wall of the slag discharge pipe, a conical blade is movably installed in the inner cavity of the slag discharge pipe, a hollow tube is fixedly installed on the outer side of the lower end surface of the detection cylinder through a bracket, the outer diameter of the hollow tube is smaller than the inner diameter of the slag discharge pipe, and the center of the hollow tube and the slag discharge pipe are on the same axis.

[0011] Preferably, the sealing assembly includes a sealing ring movably mounted on the side wall of the intake pipe, and fastening rings placed on the upper and lower sides of the side wall of the intake pipe, and the two sets of fastening rings are fixed by fasteners.

[0012] A chemical tail gas detection device comprises the chemical tail gas detection sensor mentioned above.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, when the chemical exhaust gas enters the inner cavity of the detection cylinder through the air inlet pipe, the particulate matter in the chemical exhaust gas will be intercepted by the filter net bucket, which effectively prevents the particulate matter in the chemical exhaust gas from clogging the exhaust pipe, and at the same time ensures a good detection environment and service life of the air detection unit; by fixing the vortex-shaped guide blades on the side wall of the filter net bucket, an upward vortex airflow can be formed when the chemical exhaust gas enters the detection cylinder, which reduces the impact force of the chemical exhaust gas on the filter net bucket to a certain extent, and effectively prevents the particulate matter from clogging the filter holes on the filter net bucket, thereby ensuring the quality of the whole equipment in intercepting particulate matter and reducing the frequency of workers' regular maintenance of the equipment.

[0015] In the utility model, as the particles are continuously intercepted by the filter mesh bucket, the particles will continuously roll toward the middle of the detection cylinder and be collected in the inner cavity of the slag discharge pipe through the filter residue groove. As the overall mass of the slag discharge pipe continues to increase, the slag discharge pipe can be continuously moved downward until the hollow tube enters the slag discharge pipe and contacts and presses against the conical blades, the conical blades will expand outward, and the particles collected in the slag discharge pipe can be quickly discharged from the hollow tube. As a large amount of particles are continuously discharged, the overall mass of the slag discharge pipe decreases, the bearing spring will be recovered, and the slag discharge pipe drives the rubber seat to rise. At this time, the rubber seat can impact the filter mesh bucket, causing the surface wall of the filter mesh bucket to vibrate, and the particles embedded in the holes of the filter mesh bucket are impacted and knocked down, thereby ensuring the quality of the filter mesh bucket in intercepting particles in chemical exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side view schematic diagram of the partial structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the detection cylinder of the utility model;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the slag discharge pipe of the utility model.

[0021] In the figure: 1. detection cylinder; 2. air inlet pipe; 3. air outlet pipe; 4. filter net bucket; 41. guide blade; 5. air detection unit; 51. display unit; 6. slag discharge pipe; 61. filter residue tank; 7. cleaning assembly; 71. rubber seat; 72. load-bearing spring; 73. conical blade; 74. hollow tube; 8. sealing assembly; 81. sealing ring; 82. fastening ring; 83. fastener. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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. Embodiment 1

[0023] See also Figures 1 to 5 The utility model provides a technical solution: it includes a detection cylinder 1, and an air inlet pipe 2 fixedly installed on the lower left part of the side wall of the detection cylinder 1, an air outlet pipe 3 fixedly installed on the upper right part of the side wall of the detection cylinder 1, a filter net bucket 4 fixedly installed in the middle part of the inner cavity of the detection cylinder 1, an air detection unit 5 is arranged above the filter net bucket 4 in the inner cavity of the detection cylinder 1, a slag discharge pipe 6 is slidably installed in the middle part of the bottom surface of the inner cavity of the detection cylinder 1, a cleaning component 7 is arranged in the inner cavity of the slag discharge pipe 6, and a sealing component 8 is arranged on the side wall of the air inlet pipe 2. Embodiment 2

[0024] Furthermore, the air inlet pipe 2 is arranged below the filter net bucket 4, the air outlet pipe 3 is arranged above the filter net bucket 4, the side wall and the bottom of the filter net bucket 4 are provided with a plurality of filter holes, and the outer side wall of the filter net bucket 4 is fixedly provided with a guide blade 41;

[0025] The guide blade 41 is arranged in a conical vortex shape, the filter net 4 is arranged in a cup shape, a display unit 51 electrically connected to the air detection unit 5 is fixedly mounted on the upper end surface of the detection cylinder 1, and the filter net 4 is made of alloy steel. Embodiment 3

[0026] Furthermore, the cleaning assembly 7 includes a rubber seat 71 fixedly mounted on the upper end surface of the slag discharge pipe 6, and a load-bearing spring 72 fixedly mounted on the lower end surface of the rubber seat 71, and the other end of the load-bearing spring 72 is fixedly mounted on the bottom surface of the inner cavity of the detection cylinder 1, and the bottom surface of the inner cavity of the detection cylinder 1 is arranged in an inwardly concave shape;

[0027] A filter slag groove 61 is provided on the side wall of the slag discharge pipe 6, a conical blade 73 is movably installed in the inner cavity of the slag discharge pipe 6, and a hollow tube 74 is fixedly installed on the outer side of the lower end surface of the detection cylinder 1 through a bracket, the outer diameter of the hollow tube 74 is smaller than the inner diameter of the slag discharge pipe 6, and the center of the hollow tube 74 and the slag discharge pipe 6 are on the same axis;

[0028] The sealing assembly 8 includes a sealing ring 81 movably mounted on the side wall of the intake pipe 2 , and fastening rings 82 placed on the upper and lower sides of the side wall of the intake pipe 2 . The two sets of fastening rings 82 are fixed to each other by fasteners 83 . Embodiment 4

[0029] A chemical tail gas detection device comprises a chemical tail gas detection sensor.

[0030] In actual use, the worker sleeves the sealing ring 81 on the end of the intake pipe 2, and then uses the fastener 83 to cooperate with the fastener 83 to connect the intake pipe 2 with the tail pipe of the chemical emission, and then starts to discharge the chemical exhaust gas. At this time, the chemical exhaust gas can enter the inner cavity of the detection cylinder 1 through the intake pipe 2. Through the setting of the filter net bucket 4, the filter net bucket 4 can divide the inner cavity of the detection cylinder 1 into two cavities. When the chemical exhaust gas enters the lower cavity of the detection cylinder 1, the particulate matter in the chemical exhaust gas will be intercepted by the filter net bucket 4, which effectively avoids the chemical exhaust gas. The particles block the air outlet pipe 3, while ensuring a good detection environment and service life of the air detection unit 5; the vortex-shaped guide blades 41 are fixedly installed on the side wall of the filter net bucket 4, and when the chemical exhaust gas enters the detection cylinder 1, an upward vortex airflow can be formed, which reduces the impact of the chemical exhaust gas on the filter net bucket 4 to a certain extent, effectively avoiding the particles from blocking the filter holes on the filter net bucket 4, ensuring the quality of the whole equipment to intercept particles, thereby reducing the frequency of workers' regular maintenance of the equipment;

[0031] As the particles are continuously intercepted by the filter net bucket 4, the particles will be deposited on the bottom surface of the inner cavity of the detection cylinder 1. The bottom surface of the inner cavity of the detection cylinder 1 is set inwardly concave. At this time, the particles will continue to roll toward the middle and be collected in the inner cavity of the slag discharge pipe 6 through the filter residue groove 61. At this time, the mass of the entire slag discharge pipe 6 is continuously increased, and the bearing spring 72 is compressed to make the slag discharge pipe 6 move downward continuously until the hollow tube 74 enters the slag discharge pipe 6 and contacts and presses against the conical blades 73. The conical blades 73 will expand outward. At this time, the particles collected in the slag discharge pipe 6 can be quickly discharged from the hollow tube 74. Due to the continuous discharge of a large amount of particles, the overall mass of the slag discharge pipe 6 decreases, the bearing spring 72 will be recovered, and the slag discharge pipe 6 drives the rubber seat 71 to rise. At this time, the rubber seat 71 can impact the filter net bucket 4, causing the surface wall of the filter net bucket 4 to vibrate, and the particles embedded in the holes of the filter net bucket 4 can be impacted and knocked down, so as to ensure the quality of the filter net bucket 4 in intercepting particles in the chemical exhaust gas.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical tail gas detection sensor, comprising a detection cylinder (1), and an air inlet pipe (2) fixedly mounted on the lower left side of the side wall of the detection cylinder (1), and an air outlet pipe (3) fixedly mounted on the upper right side of the side wall of the detection cylinder (1), characterized in that: A filter net bucket (4) is fixedly mounted in the middle of the inner cavity of the detection cylinder (1); an air detection unit (5) is arranged above the filter net bucket (4) in the inner cavity of the detection cylinder (1); a slag discharge pipe (6) is slidably mounted in the middle of the bottom surface of the inner cavity of the detection cylinder (1); a cleaning component (7) is arranged in the inner cavity of the slag discharge pipe (6); and a sealing component (8) is arranged on the side wall of the air inlet pipe (2).

2. A chemical tail gas detection sensor according to claim 1, characterized in that: The air inlet pipe (2) is arranged below the filter net bucket (4), and the air outlet pipe (3) is arranged above the filter net bucket (4). The side wall and the bottom of the filter net bucket (4) are provided with a plurality of groups of filter holes, and the outer side wall of the filter net bucket (4) is fixedly mounted with a guide blade (41).

3. A chemical tail gas detection sensor according to claim 2, characterized in that: The guide blade (41) is arranged in a conical vortex shape, the filter net bucket (4) is arranged in a cup shape, a display unit (51) electrically connected to the air detection unit (5) is fixedly mounted on the upper end surface of the detection cylinder (1), and the filter net bucket (4) is made of alloy steel.

4. A chemical tail gas detection sensor according to claim 1, characterized in that: The cleaning assembly (7) comprises a rubber seat (71) fixedly mounted on the upper end surface of the slag discharge pipe (6), and a load-bearing spring (72) fixedly mounted on the lower end surface of the rubber seat (71); the other end of the load-bearing spring (72) is fixedly mounted on the bottom surface of the inner cavity of the detection cylinder (1); and the bottom surface of the inner cavity of the detection cylinder (1) is arranged in an inwardly concave shape.

5. A chemical tail gas detection sensor according to claim 4, characterized in that: A filter slag groove (61) is provided on the side wall of the slag discharge pipe (6), a conical blade (73) is movably mounted in the inner cavity of the slag discharge pipe (6), and a hollow tube (74) is fixedly mounted on the outer side of the lower end surface of the detection cylinder (1) via a bracket, the outer diameter of the hollow tube (74) is smaller than the inner diameter of the slag discharge pipe (6), and the center of the hollow tube (74) and the slag discharge pipe (6) are located on the same axis.

6. A chemical tail gas detection sensor according to claim 1, characterized in that: The sealing assembly (8) comprises a sealing ring (81) movably mounted on the side wall of the air intake pipe (2), and fastening rings (82) placed on the upper and lower sides of the side wall of the air intake pipe (2), and the two sets of fastening rings (82) are fixed to each other via fasteners (83).

7. A chemical tail gas detection device, characterized in that: A chemical tail gas detection sensor comprising any one of claims 1 to 6.

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