Novel constant-temperature constant-current sampling device

Abstract

The utility model discloses a novel constant-temperature constant-flow sampling device which comprises a sampling tank body and a control panel, the control panel is arranged on the outer wall of the sampling tank body, the sampling tank body is divided into an upper cavity, a middle cavity and a lower cavity by a plurality of partition plates, the upper cavity is provided with a top cover, and the top cover is provided with an air inlet which is communicated up and down and is provided with an air inlet pipe; an elastic sucking disc, a first electromagnetic valve, a first filtering piece, an air inlet pump, a second filtering piece and an air guide pipe which are sequentially communicated through a pipe body are arranged in the upper cavity; a gas storage bottle, a second electromagnetic valve, an exhaust pipe, a pressure sensor, a temperature sensor, a heating plate and a refrigeration plate which are sequentially communicated through a pipe body are arranged in the middle cavity; and a storage battery is arranged in the lower cavity. The device can keep constant temperature and constant current, keeps data the same as that of a collection environment, can filter out irrelevant impurities in gas, improves detection precision and avoids subsequent damage to detection equipment.

Description

Technical Field

[0001] The utility model relates to a gas sampling device, in particular to a novel constant temperature and constant current sampling device. Background Art

[0002] Comprehensive environmental air monitoring can not only improve the supervision and protection of the atmospheric environment, but also provide important data support for air quality management, weather forecasting, health risk assessment and scientific research. Most of the existing gas sampling devices only have the function of air collection. However, in harsh environments or environments with different ambient temperatures, the sampling of gases cannot maintain the same pressure and temperature as the collection environment, resulting in errors between the collected gas and the actual environment. Especially for those who only need to detect the gas, impurities in the gas will affect the detection accuracy and damage the detection equipment. Therefore, it is necessary to design a new sampling device that can maintain constant temperature and constant flow, maintain the same data as the collection environment, and filter out irrelevant impurities in the gas, improve the detection accuracy and avoid subsequent damage to the detection equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a new constant temperature and constant current sampling device

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A novel constant temperature and constant flow sampling device comprises a sampling tank body and a control panel, wherein the control panel is arranged on the outer wall of the sampling tank body, the sampling tank body is divided into an upper cavity, a middle cavity and a lower cavity by a plurality of partitions, the upper cavity is provided with a top cover, the top cover is provided with an air inlet communicating with the upper and lower parts and is provided with an air inlet pipe;

[0006] The upper cavity is provided with an elastic suction cup, a first solenoid valve, a first filter, an air intake pump, a second filter and an air guide pipe which are connected in sequence through a tube body; the elastic suction cup is connected with the air intake port and abuts against the bottom of the top cover; a communication port is provided between the upper cavity and the middle cavity, and the air guide pipe passes through the communication port and enters the middle cavity;

[0007] The middle cavity is provided with a gas storage bottle, a second solenoid valve and an exhaust pipe which are connected in sequence by pipe bodies. The top of the gas storage bottle is connected with the air guide pipe and is provided with a pressure sensor for monitoring air pressure. A heating plate and a cooling plate are arranged around the inner wall of the middle cavity. A temperature sensor is arranged at the bottom for detecting the temperature of the middle cavity. The middle cavity is provided with an opening, and the exhaust pipe passes through the opening.

[0008] The lower chamber is provided with a battery, the battery is connected to a control panel, and the control panel is respectively connected to an air intake pump, a first solenoid valve, a second solenoid valve, a heating plate, a cooling plate, a pressure sensor and a temperature sensor.

[0009] Furthermore, a multi-layer filter mesh group is provided in the first filter element and the second filter element for filtering particulate impurities in the air.

[0010] Furthermore, the top cover is detachably mounted on the top of the sampling tank body, and a threaded structure for threaded connection and mounting is provided at the top cover and the upper cavity of the sampling tank body.

[0011] Furthermore, a bottom cover is detachably mounted on the bottom of the lower cavity, and a threaded structure for threaded connection and mounting is provided at the bottom cover and the lower cavity of the sampling tank body.

[0012] Furthermore, the connection port and the opening are both blocked with sealing annular plugs, and the sealing annular plugs are sleeved on the air guide pipe of the connection port and the exhaust pipe of the opening.

[0013] Furthermore, the upper cavity is provided with a support plate for supporting the top cover.

[0014] After adopting the above technical solution, the utility model has the following advantages compared with the background technology:

[0015] The utility model filters impurities in the air by arranging a first filter element and a second filter element, retains only the gas components in the air, filters out irrelevant impurities in the gas, improves detection accuracy and avoids subsequent damage to detection equipment, and then detects temperature and pressure changes by arranging a heating plate, a cooling plate, a pressure sensor and a temperature sensor, and utilizes the control switch and flow of the first solenoid valve and the second solenoid valve to maintain a constant temperature and flow of the gas storage bottle, thereby maintaining the same gas temperature and content data as those in the collection environment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 This is a schematic diagram of the utility model without an air intake pipe;

[0019] Figure 4 This is a schematic diagram of a sampling tank without a top cover of the utility model;

[0020] Figure 5 This is a schematic diagram of another angle of the sampling tank without a top cover of the utility model.

[0021] Description of reference numerals:

[0022] Sampling tank body 1; control panel 2; top cover 3; bottom cover 4; upper cavity 11; middle cavity 12; lower cavity 13; connecting port 14; elastic suction cup 111; first solenoid valve 112; first filter element 113; air intake pump 114; second filter element 115; air guide tube 116; support plate 117; gas storage bottle 121; second solenoid valve 122; exhaust pipe 123; heating plate 124; cooling plate 125; temperature sensor 126; opening 127; battery 131; air inlet 31; air intake pipe 32. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Example

[0026] Cooperate Figures 1 to 5 As shown, the utility model discloses a novel constant temperature and constant current sampling device, including a sampling tank body 1 and a control panel 2, wherein the control panel 1 is arranged on its outer wall, and the sampling tank body 1 is divided into an upper chamber 11, a middle chamber 12 and a lower chamber 13 by a plurality of partitions, and the upper chamber 11 is provided with a top cover 3, and the top cover 3 is provided with an air inlet 31 communicating with each other from top to bottom and an air inlet pipe 32 is installed.

[0027] The air inlet pipe 32 is provided with a filter at its top opening.

[0028] In this embodiment, a pressure sensor and a temperature sensor may be further provided on the outer wall of the sampling tank body 1 for detecting the temperature and air pressure of the current environment, so that the temperature and air pressure in the sampling tank body remain consistent.

[0029] The pressure sensor in this embodiment is a gas pressure sensor.

[0030] The upper chamber 11 is provided with an elastic suction cup 111, a first solenoid valve 112, a first filter element 113, an air intake pump 114, a second filter element 115 and an air guide tube 116 which are connected in sequence through a tube body. The elastic suction cup 111 is connected to the air inlet 31 and abuts against the bottom of the top cover 3. A connecting port 14 is provided between the upper chamber 11 and the middle chamber 12. The air guide tube 116 passes through the connecting port 14 and enters the middle chamber 12.

[0031] The middle cavity 12 is provided with a gas cylinder 121, a second solenoid valve 122 and an exhaust pipe 123 which are connected in sequence by pipe bodies. The top of the gas cylinder 121 is connected to the air guide pipe 116 and is provided with a pressure sensor for monitoring the air pressure. A heating plate 124 and a cooling plate 125 are provided around the inner wall of the middle cavity 12. A temperature sensor 126 is provided at the bottom for detecting the temperature of the middle cavity 12. The middle cavity 12 is provided with an opening 127, and the exhaust pipe 123 passes through the opening 127.

[0032] The lower chamber 13 is provided with a battery 131 , and the battery 131 is connected to the control panel 2 , and the control panel 2 is respectively connected to the air intake pump 114 , the first solenoid valve 112 , the second solenoid valve 122 , the heating plate 124 , the cooling plate 125 , the pressure sensor and the temperature sensor 126 .

[0033] The first filter element 113 and the second filter element 115 are provided with a multi-layer filter mesh group for filtering particulate impurities in the air.

[0034] The top cover 3 is detachably mounted on the top of the sampling tank body 1 , and a threaded structure for threaded connection and installation is provided between the top cover 3 and the upper cavity 11 of the sampling tank body 1 .

[0035] A bottom cover 4 is detachably mounted on the bottom of the lower chamber 13 , and a threaded structure for threaded connection and mounting is provided at the bottom cover 4 and the lower chamber 13 of the sampling tank body 1 .

[0036] The connection port 14 and the opening 127 are both blocked with sealing annular plugs, and the sealing annular plugs are sleeved on the air guide pipe 116 of the connection port and the exhaust pipe 123 of the opening.

[0037] The upper chamber 11 is provided with a support plate 117 for supporting the top cover 3 .

[0038] In this embodiment, the first filter element 113 and the second filter element 115 are arranged to filter impurities in the air, retain only the gas components in the air, filter out irrelevant impurities in the gas, improve the detection accuracy and avoid subsequent damage to the detection equipment, and then set a heating plate 124, a cooling plate 125, a pressure sensor and a temperature sensor 126 to detect temperature and pressure changes, and use the control switch and flow of the first solenoid valve and the second solenoid valve to maintain a constant temperature and flow of the gas storage bottle 121, thereby maintaining the same gas temperature and content data as the collection environment.

[0039] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A new type of constant temperature and constant current sampling device, characterized in that: It includes a sampling tank body and a control panel, wherein the control panel is arranged on the outer wall thereof, the sampling tank body is divided into an upper cavity, a middle cavity and a lower cavity by a plurality of partitions, the upper cavity is provided with a top cover, the top cover is provided with an air inlet communicating with the upper and lower parts and is provided with an air inlet pipe; The upper cavity is provided with an elastic suction cup, a first solenoid valve, a first filter, an air intake pump, a second filter and an air guide pipe which are connected in sequence through a tube body; the elastic suction cup is connected with the air intake port and abuts against the bottom of the top cover; a communication port is provided between the upper cavity and the middle cavity, and the air guide pipe passes through the communication port and enters the middle cavity; The middle cavity is provided with a gas storage bottle, a second solenoid valve and an exhaust pipe which are connected in sequence by pipe bodies. The top of the gas storage bottle is connected with the air guide pipe and is provided with a pressure sensor for monitoring air pressure. A heating plate and a cooling plate are arranged around the inner wall of the middle cavity. A temperature sensor is arranged at the bottom for detecting the temperature of the middle cavity. The middle cavity is provided with an opening, and the exhaust pipe passes through the opening. The lower chamber is provided with a battery, the battery is connected to a control panel, and the control panel is respectively connected to an air intake pump, a first solenoid valve, a second solenoid valve, a heating plate, a cooling plate, a pressure sensor and a temperature sensor.

2. A novel constant temperature and constant current sampling device as claimed in claim 1, characterized in that: The first filter element and the second filter element are provided with a multi-layer filter mesh group for filtering particulate impurities in the air.

3. A novel constant temperature and constant current sampling device as claimed in claim 1, characterized in that: The top cover is detachably mounted on the top of the sampling tank body, and a threaded structure for threaded connection and mounting is provided at the top cover and the upper cavity of the sampling tank body.

4. A novel constant temperature and constant current sampling device as claimed in claim 1, characterized in that: A bottom cover is detachably mounted on the bottom of the lower cavity, and a threaded structure for threaded connection and mounting is provided at the bottom cover and the lower cavity of the sampling tank body.

5. A novel constant temperature and constant current sampling device as claimed in claim 1, characterized in that: The connection port and the opening are both blocked with sealing annular plugs, and the sealing annular plugs are sleeved on the air guide pipe of the connection port and the exhaust pipe of the opening.

6. A novel constant temperature and constant current sampling device as claimed in claim 1, characterized in that: The upper cavity is provided with a support plate for supporting the top cover.

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