Continuous monitoring and sampling equipment for ammonia-containing waste gas of stationary pollution source

Abstract

The utility model discloses continuous monitoring and sampling equipment for stationary pollution source ammonia-containing waste gas, which comprises a sampling box, a sampling mechanism is mounted on the surface of the sampling box and used for detecting and sampling the ammonia-containing waste gas, and the sampling mechanism comprises a monitoring part mounted on the surface of the sampling box and used for continuously sampling and monitoring the waste gas, the utility model relates to the technical field of monitoring sampling equipment. According to the continuous monitoring and sampling equipment for the ammonia-containing waste gas of the stationary pollution source, a sampling pipe is communicated with a sampling box through a connecting pipe and a ventilating pipe at the bottom, a connecting block is fixedly connected to an inner cavity of the sampling pipe, and a monitoring probe is fixedly connected to the surface of the connecting block, so that the problem that during continuous monitoring and sampling of the ammonia-containing waste gas, the sampling efficiency is high is solved; the problems that an existing detection probe needs to be exposed in waste gas for monitoring, the speed of the waste gas in a pipeline is too high, detection of the monitoring probe is unstable, monitoring data is not accurate, errors exist in the monitoring data, and wrong information is provided are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring sampling equipment, in particular to a continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source. Background Art

[0002] According to Chinese patent CN220473118U, an exhaust gas monitoring and sampling device with good sealing effect is disclosed, which relates to the technical field of exhaust gas monitoring and sampling devices. The exhaust gas monitoring and sampling device aims to solve the technical problem that a certain sealing and leak-proof protection mechanism is not arranged at the interface of the exhaust gas monitoring and sampling device in the prior art. The exhaust gas monitoring and sampling device comprises an exhaust gas monitoring and collecting box, a suction fan installed on the exhaust gas monitoring and collecting box, and an air suction duct connected to the suction fan; an adjustable lifting sealing component is arranged inside the exhaust gas monitoring and collecting box, a detachable sealing sampling component is arranged outside the exhaust gas monitoring and collecting box, and the exhaust gas monitoring and collecting box comprises a vertically arranged side sealing sampling outer plate inside. The exhaust gas monitoring and sampling device can adjust and seal the sampling port according to the sampling needs by adjusting the lifting sealing component, so that no secondary leakage occurs after successful sampling, and the detachable sealing sampling component can play the role of sealing and disassembling sampling.

[0003] The utility model can adjust and seal the sampling port according to sampling needs by adjusting the lifting sealing component, so that secondary leakage will not occur after successful sampling, and the detachable sealing sampling component can play the role of sealing and disassembling sampling.

[0004] However, the above technical solution still has the problem that when conducting continuous monitoring and sampling of ammonia-containing waste gas, the gas itself will carry impurities such as residues and dust, and the existing detection probe needs to be exposed to the waste gas. Long-term continuous monitoring will cause dust and impurities to adhere to the probe surface, which will affect the accuracy of the probe detection data. Too fast a waste gas flow rate will also cause errors in data detection, and in order to ensure the timeliness of the data, the gas needs to circulate continuously. When sampling, a fan is used to collect the waste gas. If the wind force is too strong during collection, the waste gas will overflow to the outside, and ammonia is harmful to the human body and can easily cause damage to the human body.

[0005] To this end, the utility model provides a continuous monitoring sampling device for ammonia-containing waste gas from a fixed pollution source. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a continuous monitoring and sampling device for ammonia-containing waste gas from a fixed pollution source, which solves the problem that when performing continuous monitoring and sampling of ammonia-containing waste gas, the gas itself will carry impurities such as residues and dust, and the existing detection probe needs to be exposed to the waste gas. Long-term continuous monitoring will cause dust and impurities to adhere to the surface of the probe, which will affect the accuracy of the probe detection data. Too fast a waste gas flow rate will also cause errors in data detection. In order to ensure the timeliness of the data, the gas needs to be circulated continuously. When sampling, a fan is used to collect the waste gas. If the wind force is too strong during collection, the waste gas will overflow to the outside. Ammonia is harmful to the human body and can easily cause damage to the human body.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a continuous monitoring sampling device for ammonia-containing waste gas from a fixed pollution source, including a sampling box, a sampling mechanism is installed on the surface of the sampling box for detecting and sampling the ammonia-containing waste gas, and the sampling mechanism includes:

[0008] A monitoring unit is installed on the surface of the sampling box for continuous sampling and monitoring of exhaust gas. The monitoring unit includes a sampling tube installed above the sampling box. The sampling tube is connected to the sampling box through a connecting tube and a ventilation tube at the bottom. The inner cavity of the sampling tube is fixedly connected to a connecting block, and the surface of the connecting block is fixedly connected to a monitoring probe.

[0009] A cleaning unit, installed inside the monitoring unit, for cleaning dust inside the monitoring unit;

[0010] The sampling part is installed at one end of the sampling tube and is used for sampling the exhaust gas.

[0011] Preferably, the cleaning unit comprises:

[0012] A spray unit is installed on the surface of the connection block and is used to clean the residue on the surface of the monitoring probe. The spray unit includes a water spray pipe fixedly connected to the surface of the connection block, and the water spray pipe penetrates the surface of the connection block and the sampling tube and extends. The extended end of the water spray pipe is fixedly connected to a water tank, and the inner cavity of the water spray pipe is fixedly connected to a water pump;

[0013] The cleaning unit is installed in the inner cavity of the sampling tube and is used to clean the dust on the surface of the monitoring probe.

[0014] Preferably, the cleaning unit comprises:

[0015] A driving assembly is installed in the inner cavity of the sampling tube for driving operation, the driving assembly includes a cleaning box fixedly connected to the inner cavity of the sampling tube, the inner cavity of the cleaning box is fixedly connected to a motor, and one end of the motor output shaft is fixedly connected to a gear through a coupling;

[0016] The transmission assembly is installed on the surface of the connecting block and is used to clean the monitoring probe.

[0017] Preferably, the transmission assembly includes a support rod fixedly connected to the surface of the connecting block, the surface of the support rod is rotatably connected to the transmission rod, the surface of the gear is fixedly connected to a fixing rod, one end of the fixing rod is rotatably connected to a rotating rod, and the rotating rod is rotatably connected to the transmission rod via a connecting pin.

[0018] Preferably, the sampling part comprises an air outlet pipe installed at one end of the sampling tube, the inner cavity of the air outlet pipe is slidably connected to a sealing block, and the top of the sealing block is fixedly connected to a lifting rod.

[0019] Preferably, one end of the sampling box is fixedly connected to an air inlet pipe, the air inlet pipe is fixedly connected to an exhaust pipe, and the sampling box is connected to the exhaust pipe through the air inlet pipe, the sampling pipe is connected to the exhaust pipe, and a control panel is fixedly connected to the surface of the sampling box, and the control panel is electrically connected to the monitoring probe, water pump and motor respectively.

[0020] Beneficial Effects

[0021] The utility model provides a continuous monitoring sampling device for ammonia-containing waste gas from a fixed pollution source. Compared with the prior art, it has the following beneficial effects:

[0022] (1) The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source is connected to a sampling box through a connecting pipe and a ventilation pipe at the bottom of the sampling tube. The inner cavity of the sampling tube is fixedly connected to a connecting block, and the surface of the connecting block is fixedly connected to a monitoring probe. This solves the problem that when performing continuous monitoring sampling of ammonia-containing waste gas, the existing detection probe needs to be exposed to the waste gas for monitoring, and the speed of the waste gas in the pipeline is too fast, which will cause the detection of the monitoring probe to be unstable, the monitoring data to be inaccurate, and the monitoring data to have errors and provide erroneous information.

[0023] (2) The continuous monitoring sampling equipment for ammonia exhaust gas from a fixed pollution source has a support rod, the surface of which is rotatably connected to a transmission rod, the surface of the gear is fixedly connected to a fixed rod, one end of the fixed rod is rotatably connected to a rotating rod, and the rotating rod is rotatably connected to the transmission rod. This solves the problem that when performing continuous monitoring sampling of ammonia exhaust gas, the gas itself will carry impurities such as residual dust, while the existing detection probe needs to be exposed to the exhaust gas. Long-term continuous monitoring will cause the probe surface to be contaminated with dust and impurities, which will affect the accuracy of the probe detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the appearance diagram of the utility model;

[0025] Figure 2 This is a cross-sectional view of the internal structure of the sampling tube of the utility model;

[0026] Figure 3 It is a cross-sectional view of the cleaning unit of the utility model;

[0027] Figure 4 This is a schematic diagram of the connection relationship of the cleaning part of the utility model;

[0028] Figure 5 It is a schematic diagram of the connection relationship of the sampling part of the utility model.

[0029] In the figure: 1-sampling box, 2-monitoring part, 21-sampling tube, 22-connecting tube, 23-ventilation tube, 24-connecting block, 25-monitoring probe, 3-cleaning part, 31-spray unit, 311-spray pipe, 312-water tank, 313-water pump, 32-cleaning unit, 321-drive assembly, 3212-cleaning box, 3213-motor, 3214-gear, 322-transmission assembly, 3221-support rod, 3222-transmission rod, 3223-fixing rod, 3224-rotating rod, 4-sampling part, 41-exhaust pipe, 42-sealing block, 43-lifting rod, 5-intake pipe, 6-exhaust pipe, 7-control panel. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-5 The utility model provides a technical solution: a continuous monitoring sampling device for ammonia-containing waste gas from a fixed pollution source, comprising a sampling box 1, a sampling mechanism is installed on the surface of the sampling box 1 for detecting and sampling the ammonia-containing waste gas, and the sampling mechanism comprises:

[0032] The monitoring part 2 is installed on the surface of the sampling box 1 for continuous sampling and monitoring of the exhaust gas. The monitoring part 2 includes a sampling tube 21 installed above the sampling box 1. The inner cavity of the sampling tube 21 is fixedly connected with a one-way valve. The sampling tube 21 is connected with the sampling box 1 through a connecting tube 22 and a ventilation tube 23 at the bottom. The inner cavity of the sampling tube 21 is fixedly connected with a connecting block 24. The surface of the connecting block 24 is fixedly connected with a monitoring probe 25.

[0033] The cleaning unit 3 is installed inside the monitoring unit 2 and is used to clean the dust inside the monitoring unit 2;

[0034] The sampling part 4 is installed at one end of the sampling tube 21 and is used for sampling the exhaust gas. It is connected to the sampling box 1 through the connecting tube 22 and the ventilation tube 23 at the bottom of the sampling tube 21. The inner cavity of the sampling tube 21 is fixedly connected with a connecting block 24, and the surface of the connecting block 24 is fixedly connected with a monitoring probe 25. This solves the problem that when performing continuous monitoring sampling of ammonia-containing exhaust gas, the existing detection probe needs to be exposed to the exhaust gas for monitoring, and the exhaust gas speed in the pipeline is too fast, which will cause the detection of the monitoring probe to be unstable, the monitoring data to be inaccurate, and the monitoring data to be erroneous, providing erroneous information.

[0035] In this embodiment, the cleaning unit 3 includes:

[0036] The spray unit 31 is installed on the surface of the connection block 24 and is used to clean the residue on the surface of the monitoring probe 25. The spray unit 31 includes a water spray pipe 311 fixedly connected to the surface of the connection block 24, and the water spray pipe 311 penetrates the surface of the connection block 24 and the sampling tube 21 and extends. The extended end of the water spray pipe 311 is fixedly connected to a water tank 312, and the inner cavity of the water spray pipe 311 is fixedly connected to a water pump 313;

[0037] The cleaning unit 32 is installed in the inner cavity of the sampling tube 21 and is used to clean dust on the surface of the monitoring probe 25 .

[0038] In this embodiment, the cleaning unit 32 includes:

[0039] The driving assembly 321 is installed in the inner cavity of the sampling tube 21 for driving operation. The driving assembly 321 includes a cleaning box 3212 fixedly connected to the inner cavity of the sampling tube 21. The inner cavity of the cleaning box 3212 is fixedly connected to a motor 3213. One end of the output shaft of the motor 3213 is fixedly connected to a gear 3214 through a coupling.

[0040] The transmission assembly 322 is installed on the surface of the connecting block 24 and is used to clean the monitoring probe 25 .

[0041] In this embodiment, the transmission assembly 322 includes a support rod 3221 fixedly connected to the surface of the connecting block 24, the surface of the support rod 3221 is rotatably connected to the transmission rod 3222, the surface of the gear 3214 is fixedly connected to the fixing rod 3223, one end of the fixing rod 3223 is rotatably connected to the rotating rod 3224, and the rotating rod 3224 is rotatably connected to the transmission rod 3222 via a connecting pin.

[0042] In this embodiment, the sampling part 4 includes an air outlet pipe 41 installed at one end of the sampling tube 21 , the inner cavity of the air outlet pipe 41 is slidably connected to a sealing block 42 , and the top of the sealing block 42 is fixedly connected to a lifting rod 43 .

[0043] In this embodiment, one end of the sampling box 1 is fixedly connected to an air inlet pipe 5, the air inlet pipe 5 is fixedly connected to an exhaust pipe 6, and the sampling box 1 is connected to the exhaust pipe 6 through the air inlet pipe 5, the sampling tube 21 is connected to the exhaust pipe 6, and the surface of the sampling box 1 is fixedly connected to a control panel 7, and the control panel 7 is electrically connected to the monitoring probe 25, the water pump 313 and the motor 3213 respectively, and a transmission rod 3222 is rotatably connected to the surface of the support rod 3221, and a fixed rod 3223 is fixedly connected to the surface of the gear 3216, and one end of the fixed rod 3223 is rotatably connected to a rotating rod 3224, and the rotating rod 3224 is rotatably connected to the transmission rod 3222, which solves the problem that when performing continuous monitoring and sampling of ammonia-containing exhaust gas, the gas itself will carry impurities such as residual dust, and the existing detection probe needs to be exposed to the exhaust gas, and long-term continuous monitoring will cause the probe surface to be stained with dust and impurities, which will affect the accuracy of the probe detection data. At the same time, the contents not described in detail in this specification belong to the prior art known to technical personnel in this field.

[0044] During operation, the exhaust gas flows upward through the exhaust pipe 6 and flows into the sampling box 1 through the air inlet pipe 5. The exhaust gas flows into the sampling pipe 21 through the ventilation pipe 23 and the connecting pipe 22 in the sampling box 1. The exhaust gas input from the connecting pipe 22 needs to push the one-way valve and then flow to the inside of the exhaust pipe 6, so that the exhaust gas flow speed in the connecting pipe 22 is slowed down. At this time, the monitoring probe 25 above the connecting pipe 22 can be accurately monitored. The water pump 313 can be started through the control panel 7 at regular intervals. The water pump 313 sprays the water inside the water tank 312 to the monitoring probe 25 through the water spray pipe 311. Because ammonia is soluble in water, the monitoring probe 25 can be better cleaned. Then the motor 3213 is started through the control panel 7. One end of the output shaft of the motor 3213 is connected to the coupling. The device drives the gear 3214 to rotate, and the gear 3216 drives the rotating rod 3224 to rotate through the fixed rod 3223, and the rotating rod 3224 drives the transmission rod 3222 to rotate around the support rod 3221, so that the transmission rod 3222 drives the cleaning brush to clean the surface of the monitoring probe 25, and the cleaned wastewater flows into the bottom of the sampling box 1 through the connecting pipe 22. The cleaning operation is performed by opening the sampling box 1. When sampling, the push-pull rod is pulled, and the push-pull rod drives the sealing block 42 to slide. The sliding of the sealing block 42 makes the exhaust gas slowly flow out from the exhaust pipe 41 to the outside, avoiding the overflow of the exhaust gas caused by excessive airflow. After taking the sample, the push-pull rod is pressed, and the push-pull rod drives the sealing block 42 to slide to complete the sealing. After completing the above operations, the exhaust gas will be re-merged into the exhaust pipe 6 from the sampling tube 21.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although the 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 continuous monitoring sampling device for ammonia-containing waste gas from a fixed pollution source, comprising a sampling box (1), characterized in that: The surface of the sampling box (1) is provided with a sampling mechanism for sampling the ammonia-containing waste gas. The sampling mechanism comprises: A monitoring unit (2) is installed on the surface of the sampling box (1) for continuous sampling and monitoring of exhaust gas, the monitoring unit (2) comprising a sampling tube (21) installed above the sampling box (1), the sampling tube (21) being connected to the sampling box (1) via a connecting tube (22) and a ventilation tube (23) at the bottom, the inner cavity of the sampling tube (21) being fixedly connected to a connecting block (24), and the surface of the connecting block (24) being fixedly connected to a monitoring probe (25); A cleaning unit (3) is installed inside the monitoring unit (2) and is used for cleaning dust inside the monitoring unit (2); The sampling part (4) is installed at one end of the sampling tube (21) and is used for sampling the exhaust gas.

2. The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source according to claim 1 is characterized by: The cleaning unit (3) comprises: A spray unit (31) is installed on the surface of the connection block (24) and is used to clean the monitoring probe (25). The spray unit (31) comprises a water spray pipe (311) fixedly connected to the surface of the connection block (24). An extended end of the water spray pipe (311) is fixedly connected to a water tank (312). An inner cavity of the water spray pipe (311) is fixedly connected to a water pump (313). A cleaning unit (32) is installed in the inner cavity of the sampling tube (21) and is used for cleaning the monitoring probe (25).

3. The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source according to claim 2 is characterized by: The cleaning unit (32) comprises: A driving assembly (321) is installed in the inner cavity of the sampling tube (21) for driving, the driving assembly (321) comprising a cleaning box (3212) fixedly connected to the inner cavity of the sampling tube (21), the inner cavity of the cleaning box (3212) is fixedly connected to a motor (3213), and one end of the output shaft of the motor (3213) is fixedly connected to a gear (3214) via a coupling; The transmission assembly (322) is mounted on the surface of the connecting block (24) for cleaning operation.

4. The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source according to claim 3 is characterized by: The transmission assembly (322) comprises a support rod (3221) fixedly connected to the surface of the connection block (24); the surface of the support rod (3221) is rotatably connected to a transmission rod (3222); the surface of the gear (3214) is fixedly connected to a fixing rod (3223); the fixing rod (3223) is rotatably connected to a rotating rod (3224); the rotating rod (3224) is rotatably connected to the transmission rod (3222) via a connecting pin.

5. The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source according to claim 1 is characterized by: The sampling part (4) comprises an air outlet pipe (41) installed at one end of the sampling tube (21), the inner cavity of the air outlet pipe (41) is slidably connected to a sealing block (42), and the top of the sealing block (42) is fixedly connected to a lifting rod (43).

6. The continuous monitoring sampling equipment for ammonia-containing waste gas from a fixed pollution source according to claim 3 is characterized by: One end of the sampling box (1) is fixedly connected to an air intake pipe (5), the air intake pipe (5) is fixedly connected to an exhaust pipe (6), the sampling pipe (21) is in communication with the exhaust pipe (6), the surface of the sampling box (1) is fixedly connected to a control panel (7), and the control panel (7) is electrically connected to a monitoring probe (25), a water pump (313) and a motor (3213), respectively.

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