Ambient air and waste gas sampling device

Abstract

The utility model discloses an ambient air and waste gas sampling device in the technical field of sampling devices, which comprises a gas-guide tube assembly, a gas-guide tube assembly and a gas-guide tube assembly, the air inlet is coaxially formed in the top of the air guide pipe; the first water pump connector is arranged on the side, close to the air inlet, of the outer side wall of the air guide pipe; the first water pump is mounted on the water inlet of the air guide pipe assembly; the water drainage mechanism is installed on a water drainage opening of the air guide pipe assembly, water is pumped into an inner cavity of the air guide pipe assembly through a first water pump, and then water in the inner cavity of the air guide pipe assembly is pumped out through the water drainage mechanism. The influence of dust and impurities adhered to the side wall of the inner cavity of the gas guide pipe on the collected gas is avoided, and the gas detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to an ambient air and waste gas sampling device. Background Art

[0002] The pollution of smoke to the air is closely related to meteorological conditions. Wind, atmospheric stability, turbulence, etc. are closely related to the atmospheric pollution status. In addition, photochemistry and biochemistry also have a certain impact on the pollution of flue gas. The sources of flue gas pollutants, aluminum electrolysis flue gas mainly include gaseous pollutants and solid pollutants. Gaseous pollutants mainly include: HF, SO2, CO, CO2, CF4, asphalt smoke, etc., solid pollutants mainly include: alumina, fluoride salt dust, carbon powder, etc.

[0003] When the existing air exhaust sampling device collects gas, dust impurities in the air are easily adhered to the air duct. When collecting gas next time, the collected gas comes into contact with the impurities adhered to the air duct and is collected into the collection device together, which seriously affects the gas detection accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide an ambient air and exhaust gas sampling device to solve the problem that the dust and impurities in the air are easily adhered to the air duct when the existing air and exhaust gas sampling device is used to collect gas. When the gas is collected next time, the collected gas comes into contact with the impurities adhered to the air duct and is collected into the collection device together, which seriously affects the detection accuracy of the gas.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an ambient air and exhaust gas sampling device, comprising:

[0006] Airway tube assembly;

[0007] a first water pump, the first water pump being mounted on a water inlet of the air guide pipe assembly;

[0008] A drainage mechanism is installed on the drainage port of the air guide tube assembly. Water is pumped into the inner cavity of the air guide tube assembly by a first water pump and then the water in the inner cavity of the air guide tube assembly is pumped out by the drainage mechanism to wash the inner cavity of the air guide tube assembly.

[0009] Preferably, the airway tube assembly comprises:

[0010] Airway;

[0011] An air inlet, the air inlet being coaxially arranged at the top of the air guide pipe;

[0012] A first water pump connection port, the first water pump connection port being arranged on a side of the outer wall of the air duct adjacent to the air inlet;

[0013] a second water pump connection port, the second water pump connection port being coaxially disposed on an end of the air guide pipe away from the air inlet;

[0014] An air pump connection port is arranged on the outer side wall of the air guide pipe at a side adjacent to the second water pump connection port.

[0015] Preferably, the drainage mechanism comprises:

[0016] A connecting elbow, the connecting elbow being mounted on an end of the second water pump connecting port away from the air guide pipe;

[0017] A second water pump is installed on an end of the connecting elbow away from the connecting port of the second water pump.

[0018] Preferably, a sampling mechanism is installed on the end of the air pump connection port away from the air guide tube, and the sampling mechanism includes:

[0019] Sampling canister assembly;

[0020] a first air pump, the first air pump being mounted on the air inlet of the sampling canister assembly;

[0021] a second air pump, the second air pump being mounted on the exhaust port of the sampling canister assembly;

[0022] A first temperature sensor is installed on the outer side wall of the sampling canister assembly.

[0023] Preferably, the sampling canister assembly comprises:

[0024] Sampling tank body;

[0025] An air inlet connector, which is arranged on the air inlet of the sampling tank body;

[0026] An exhaust connector, the exhaust connector is arranged on the exhaust port of the sampling tank body;

[0027] A second temperature sensor, the second temperature sensor is installed in the inner cavity of the sampling tank body;

[0028] A cooling plate, the cooling plate is installed on the top of the inner cavity of the sampling tank body;

[0029] A heating plate is installed at the bottom of the inner cavity of the sampling tank body, and the heating plate is symmetrically arranged with the cooling plate.

[0030] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can effectively clean the inner cavity of the airway tube, avoid the dust and impurities adhering to the side wall of the inner cavity of the airway tube from affecting the collected gas, and improve the accuracy of gas detection; the first water pump is detachably mounted on the end of the first water pump connecting port away from the airway tube by bolts; the end of the first water pump away from the first water pump connecting port is connected to clean water through a pipeline; the clean water is pumped into the inner cavity of the first water pump connecting port by the first water pump; the clean water enters the inner cavity of the airway tube through the first water pump connecting port; since the first water pump is connected The opening is set on the raised part of the bend of the air duct and the air inlet. When water enters the air duct, it collides with the connection between the air duct and the air inlet, so that the clean water is divided into two streams, one stream flows into the inner cavity of the air duct to clean the side wall of the air duct, and the other stream enters the inner cavity of the air inlet to clean the inner cavity of the air inlet. The cleaning water for cleaning the air inlet flows out through the end of the air inlet away from the air duct, which can effectively clean the inner cavity of the air duct and the air inlet, avoid the dust and impurities adhering to the side wall of the inner cavity of the air duct to affect the collected gas, and improve the accuracy of gas detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the air guide tube assembly of the utility model;

[0033] Figure 3 This is a schematic diagram of the drainage mechanism structure of the utility model;

[0034] Figure 4 This is a schematic diagram of the sampling mechanism structure of the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the sampling canister assembly of the utility model.

[0036] In the figure: 100 air duct assembly, 110 air duct, 120 air inlet, 130 first water pump connection port, 140 second water pump connection port, 150 air pump connection port, 200 first water pump, 300 drainage mechanism, 310 connecting elbow, 320 second water pump, 400 sampling mechanism, 410 sampling tank assembly, 411 sampling tank body, 412 air inlet connector, 413 exhaust connector, 414 second temperature sensor, 415 cooling plate, 416 heating plate, 420 first air pump, 430 second air pump, 440 first temperature sensor. DETAILED DESCRIPTION

[0037] 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.

[0038] The utility model provides an ambient air and exhaust gas sampling device, which can effectively clean the inner cavity of the airway tube, avoid the dust and impurities adhering to the side wall of the inner cavity of the airway tube from affecting the collected gas, and improve the accuracy of gas detection. Figure 1 , comprising: an air guide tube assembly 100, a first water pump 200, a drainage mechanism 300 and a sampling mechanism 400;

[0039] See also Figure 1-2 , the airway assembly 100 comprises:

[0040] The air guide pipe 110 is used to guide the exhaust air so that the exhaust air enters the collection device;

[0041] The air inlet 120 is coaxially arranged at the top of the air duct 110. The air inlet 120 and the air duct 110 are integrally processed. The inner cavity of the air inlet 120 is connected with the inner cavity of the air duct 110. External air exhaust gas enters the inner cavity of the air duct 110 through the air inlet 120.

[0042] The first water pump connection port 130 is disposed on the outer wall of the air duct 110 on a side adjacent to the air inlet 120. The first water pump connection port 130 is disposed on a raised portion of a bend between the air duct 110 and the air inlet 120. The first water pump connection port 130 and the air duct 110 are integrally processed, and an inner cavity of the first water pump connection port 130 is connected to an inner cavity of the air duct 110.

[0043] The second water pump connection port 140 is coaxially disposed on an end of the air duct 110 away from the air inlet 120. The second water pump connection port 140 and the air duct 110 are integrally processed, and the inner cavity of the second water pump connection port 140 is connected to the inner cavity of the air duct 110.

[0044] The air pump connection port 150 is disposed on the outer wall of the air duct 110 at a side adjacent to the second water pump connection port 140. The air pump connection port 150 and the air duct 110 are integrally processed, and the inner cavity of the air pump connection port 150 is connected to the inner cavity of the air duct 110.

[0045] Please refer again Figure 1-2The first water pump 200 is detachably mounted on the end of the first water pump connection port 130 away from the air duct 110 by bolts. The end of the first water pump 200 away from the first water pump connection port 130 is connected to the clean water through a pipeline. The clean water is pumped into the inner cavity of the first water pump connection port 130 by the first water pump 200. The clean water enters the inner cavity of the air duct 110 through the first water pump connection port 130. Since the first water pump connection port 130 is arranged on the raised part of the bend between the air duct 110 and the air inlet 120, when water enters the air duct 110, it will contact the air duct 110 with the air inlet 120. The connection between the air inlet 120 and the air inlet 10 collides, so that the cleaning water is divided into two streams, one stream flows into the inner cavity of the air guide tube 110 to clean the side wall of the air guide tube 110, and the other stream enters the inner cavity of the air inlet 120 to clean the inner cavity of the air inlet 120. The cleaning water for cleaning the air inlet 120 flows out through the end of the air inlet 120 away from the air guide tube 110, which can effectively clean the inner cavities of the air guide tube 110 and the air inlet 120, avoid the dust and impurities adhering to the side wall of the inner cavity of the air guide tube from affecting the collected gas, and improve the accuracy of gas detection;

[0046] See also Figure 1-3 The drainage mechanism 300 is installed on the drainage port of the airway tube assembly 100. The first water pump 200 pumps water into the inner cavity of the airway tube assembly 100 and then the water in the inner cavity of the airway tube assembly 100 is pumped out through the drainage mechanism 300 to wash the inner cavity of the airway tube assembly 100. The drainage mechanism 300 includes:

[0047] One end of the connecting elbow 310 is detachably mounted on the second water pump connection port 140 away from the end of the air guide pipe 110 by means of bolts, and the inner cavity of the connecting elbow 310 is connected with the inner cavity of the second water pump connection port 140;

[0048] The second water pump 320 is installed on the end of the connecting elbow 310 away from the second water pump connection port 140, and the cleaning water after cleaning the inner cavity side wall of the air guide tube 110 is discharged through the cooperation of the second water pump 320 and the connecting elbow 310;

[0049] See also Figure 1-2 and Figure 4-5 A sampling mechanism 400 is installed on the end of the air pump connection port 150 away from the air guide tube 110, and the sampling mechanism 400 includes:

[0050] The sampling canister assembly 410 includes:

[0051] Sampling tank body 411;

[0052] The air inlet connector 412 is disposed on the air inlet of the sampling tank body 411. The air inlet connector 412 and the sampling tank body 411 are integrated, and the inner cavity of the air inlet connector 412 is connected to the inner cavity of the sampling tank body 411.

[0053] The exhaust connector 413 is disposed on the exhaust port of the sampling tank body 411. The exhaust connector 413 and the sampling tank body 411 are integrated, and the inner cavity of the exhaust connector 413 is connected with the inner cavity of the sampling tank body 411.

[0054] The second temperature sensor 414 is installed in the inner cavity of the sampling tank body 411, and the inner cavity temperature of the sampling tank body 411 is monitored by the second temperature sensor 414;

[0055] The cooling plate 415 is installed on the top of the inner cavity of the sampling tank body 411;

[0056] The heating plate 416 is installed at the bottom of the inner cavity of the sampling tank body 411. The heating plate 416 and the cooling plate 415 are symmetrically arranged. The inner cavity of the cooling plate 415 and the heating plate 416 is cooled or heated to adjust the temperature of the inner cavity of the sampling tank body 411.

[0057] The first air pump 420 is detachably mounted on the end of the air inlet connector 412 away from the sampling tank body 411 by bolts, and the end of the first air pump 420 away from the air inlet connector 412 is detachably mounted on the end of the air guide tube 110 on the air pump connection port 150 by bolts. The inner cavities of the air guide tube 110 and the air pump connection port 150 are evacuated by the first air pump 420, and the external air exhaust gas enters the inner cavity of the air pump connection port 150 through the air guide tube 110, and the air exhaust gas enters the inner cavity of the sampling tank body 411 through the air pump connection port 150 for storage;

[0058] The second air pump 430 is detachably mounted on the exhaust connector 413 at one end away from the sampling tank body 411 by means of bolts. When the collected air waste gas needs to be tested, the air waste gas stored in the inner cavity of the sampling tank body 411 is discharged through the second air pump 430 for testing;

[0059] The first temperature sensor 440 is installed on the outer wall of the sampling tank body 411. The temperature of the external environment is monitored by the first temperature sensor 440. The first temperature sensor 440 is electrically connected to the PLC controller through a wire. The PLC controller is electrically connected to the temperature controller through a wire. The temperature controller is electrically connected to the cooling plate 415 and the heating plate 416. The PLC controller is electrically connected to the second temperature sensor 414. The first temperature sensor 440 monitors the temperature of the external environment and transmits the collected temperature data to the PLC controller. The PLC controller controls the temperature controller to start the cooling plate 415 and the heating plate 416. 6. The inner cavity temperature of the sampling tank body 411 is adjusted, and the inner cavity temperature of the sampling tank body 411 is monitored by the second temperature sensor 414. When the inner cavity temperature of the sampling tank body 411 is consistent with the external ambient temperature, the second temperature sensor 414 transmits a signal to the PLC controller, and the PLC controller controls the temperature controller to disconnect the power supply of the cooling plate 415 and the heating plate 416, so that the inner cavity temperature of the sampling tank body 411 is the same as the external ambient temperature, which can effectively ensure that the properties of the collected gas will not change, effectively solve the problem of changes in the properties of the collected gas due to temperature changes, and ensure the accuracy of air exhaust gas detection.

[0060] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An ambient air and exhaust gas sampling device, characterized in that: include: Airway tube assembly (100); a first water pump (200), the first water pump (200) being installed on the water inlet of the air guide pipe assembly (100); A drainage mechanism (300) is installed on the drainage port of the air guide tube assembly (100), and water is pumped into the inner cavity of the air guide tube assembly (100) by a first water pump (200), and then the water in the inner cavity of the air guide tube assembly (100) is pumped out by the drainage mechanism (300), so as to wash the inner cavity of the air guide tube assembly (100) with water.

2. An ambient air and exhaust gas sampling device according to claim 1, characterized in that: The airway tube assembly (100) comprises: Airway tube (110); An air inlet (120), the air inlet (120) being coaxially arranged at the top of the air guide tube (110); A first water pump connection port (130), the first water pump connection port (130) being arranged on a side of the outer wall of the air guide pipe (110) adjacent to the air inlet (120); A second water pump connection port (140), the second water pump connection port (140) being coaxially arranged on an end of the air guide pipe (110) away from the air inlet (120); An air pump connection port (150), the air pump connection port (150) being arranged on a side of the outer side wall of the air guide pipe (110) adjacent to the second water pump connection port (140).

3. An ambient air and exhaust gas sampling device according to claim 2, characterized in that: The drainage mechanism (300) comprises: A connecting elbow (310), the connecting elbow (310) being mounted on an end of the second water pump connecting port (140) away from the air guide pipe (110); A second water pump (320), wherein the second water pump (320) is installed on an end of the connecting elbow (310) away from the second water pump connecting port (140).

4. An ambient air and exhaust gas sampling device according to claim 3, characterized in that: A sampling mechanism (400) is installed on the end of the air pump connection port (150) away from the air guide tube (110), and the sampling mechanism (400) comprises: Sampling canister assembly (410); A first air pump (420), wherein the first air pump (420) is installed on the air inlet of the sampling canister assembly (410); A second air pump (430), wherein the second air pump (430) is installed on the exhaust port of the sampling canister assembly (410); A first temperature sensor (440), wherein the first temperature sensor (440) is installed on the outer side wall of the sampling canister assembly (410).

5. An ambient air and exhaust gas sampling device according to claim 4, characterized in that: The sampling canister assembly (410) comprises: Sampling tank body (411); An air inlet connector (412), the air inlet connector (412) being arranged on the air inlet of the sampling tank body (411); An exhaust connector (413), wherein the exhaust connector (413) is arranged on the exhaust port of the sampling tank body (411); A second temperature sensor (414), the second temperature sensor (414) being installed in the inner cavity of the sampling tank body (411); A cooling plate (415), wherein the cooling plate (415) is installed at the top of the inner cavity of the sampling tank body (411); A heating plate (416), wherein the heating plate (416) is installed at the bottom of the inner cavity of the sampling tank body (411), and the heating plate (416) and the cooling plate (415) are symmetrically arranged.

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