Gas flow detection device

Abstract

The utility model belongs to the technical field of gas flow detection, and discloses a gas flow detection device which comprises an installation assembly used for double-seal installation, a detection assembly installed at the bottom of the installation assembly and used for extending into a pipeline to detect gas flow, and a switching assembly used for bridging, bypassing and isolating an overhaul position. The number of the installation assemblies and the number of the detection assemblies are both two, and the installation assemblies are installed on the switching assembly in a front-back symmetry mode. According to the gas flow detection device provided by the utility model, through the arrangement of bypassing and isolating the overhaul position through the bridging pipe, the gas flow bypasses the overhaul position through the bridging pipe, and the detection head can be overhauled without stopping conveying gas; through the arrangement of front and back dual detection, when one detection head is overhauled, the gas flow is detected through the other detection head, so that the influence of overhauling on gas flow detection is reduced; and through the arrangement of front and back dual detection, the detection precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas flow detection, and particularly relates to a gas flow detection device. Background Technique

[0002] Gas flow detection is a very important link in the fields of industry, scientific research and environmental monitoring, etc. It involves the accurate measurement of the gas flow rate; gas flow detection mainly measures the volume or mass of gas passing through a certain cross-section per unit time through specific instruments and methods. This measurement process is of great significance for ensuring the stability of the production process, improving product quality, protecting the environment and conducting scientific research, etc.; gas flow detection is widely used in the fields of industrial process control, environmental protection monitoring, research experiments, etc.

[0003] Comparing with the Chinese patent with the authorization announcement number of CN212567566U, it discloses a gas flow detection device including a flowmeter body and a connection component; a connecting pipe is sleeved and fixed at the bottom of the flowmeter body, an external thread is provided on the outer surface of the connecting pipe, a sealing ring is provided between the flowmeter body and the connecting pipe, one end of the connecting pipe is fixedly communicated with an intermediate pipe, the connection component includes a movable pipe, the connecting pipe is externally sleeved on the movable pipe, and an internal thread is provided inside the movable pipe, and the internal thread and the external thread are correspondingly arranged.

[0004] When overhauling the detection head of the above patent, it is necessary to stop the gas transmission. Therefore, a new device needs to be designed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a gas flow detection device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gas flow detection device includes an installation component for double-sealed installation, a detection component installed at the bottom of the installation component for extending into the pipeline to detect the gas flow, and a switching component for bridging around and isolating the overhaul position. There are two installation components and two detection components, and the installation components are symmetrically installed on the switching component before and after;

[0008] The installation component includes a connecting pipe, two bridging structures are symmetrically arranged on the front and back sides of the connecting pipe, the bridging structure includes a bridging pipe, two three-way valves are symmetrically arranged at both ends of the bridging pipe, a synchronous wheel is arranged at the top of the three-way valve, and a synchronous belt is installed between the two synchronous wheels.

[0009] Further: The detection component includes a dashboard, on which a fixing rod is provided, a detection head is arranged inside the fixing rod, and a pressing plate is arranged on the fixing rod.

[0010] Further: The installation component includes an installation structure, a connecting sleeve is arranged at the bottom of the installation structure, a first sealing gasket is arranged inside the connecting sleeve, and a second sealing gasket is arranged below the connecting sleeve.

[0011] Further: The three-way valve includes a valve body, a valve rod is arranged at the top of the valve body, a valve handle is arranged at the top of the valve rod, and the synchronous pulley is installed on the valve rod.

[0012] Further: The pressing plate is circular in shape and is stepped.

[0013] Further: The installation structure includes a detection pipe, and an installation pipe is arranged below the detection pipe.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] 1. Through the setting of bridging and bypassing and isolating the maintenance position, the air flow bypasses the maintenance position through the bridging pipe, and the detection head can be maintained without stopping the gas transportation;

[0016] 2. Through the setting of double detection before and after, when maintaining one detection head, the gas flow is detected by the other detection head, reducing the impact of maintenance on gas flow detection;

[0017] 3. Through the setting of double detection before and after, the detection accuracy is improved. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a gas flow detection device according to the present utility model;

[0019] Figure 2 is a schematic diagram of a switching component of a gas flow detection device according to the present utility model;

[0020] Figure 3 is a schematic diagram of a detection component of a gas flow detection device according to the present utility model;

[0021] Figure 4 is a right sectional view of an installation component of a gas flow detection device according to the present utility model.

[0022] In the attached drawing reference numerals: 101, connecting pipe; 102, bridging pipe; 103, valve body; 104, valve stem; 105, synchronous pulley; 106, synchronous belt; 107, valve handle; 201, instrument panel; 202, fixing rod; 203, pressing plate; 204, detection head; 301, detection pipe; 302, installation pipe; 303, connecting sleeve; 304, first gasket; 305, second gasket. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 4 , a gas flow detection device, including an installation component for double-sealed installation, a detection component installed at the bottom of the installation component for extending into the pipeline to detect the gas flow, and a switching component for bridging and bypassing and isolating the maintenance position. There are two installation components and two detection components. The installation components are symmetrically installed on the front and rear of the switching component.

[0025] In this embodiment: The installation component includes a connecting pipe 101. There are two bridging structures symmetrically arranged on the front and rear sides of the connecting pipe 101. The bridging structure includes a bridging pipe 102. There are two three-way valves symmetrically arranged at both ends of the bridging pipe 102. A synchronous pulley 105 is arranged at the top of the three-way valve. A synchronous belt 106 is installed between the two synchronous pulleys 105. The three-way valve includes a valve body 103. A valve stem 104 is arranged at the top of the valve body 103. A valve handle 107 is arranged at the top of the valve stem 104. The synchronous pulley 105 is installed on the valve stem 104. When a fault occurs in the front detection head 204, the valve handle 107 on either side of the detection head 204 rotates the valve stem 104, so that it drives the valve stem 104 on the other side to rotate through the synchronous pulley 105 and the synchronous belt 106, thereby simultaneously switching the gears of the two valve bodies 103 before and after, connecting the bridging pipe 102 to the gas path, and disconnecting the detection pipe 301 from the gas path at the same time, without stopping the gas transmission;

[0026] In this embodiment: The detection component includes an instrument panel 201. A fixing rod 202 is arranged on the instrument panel 201. A detection head 204 is arranged inside the fixing rod 202. A pressing plate 203 is arranged on the fixing rod 202. The pressing plate 203 is circular in shape and is stepped. The detection head 204 detects the gas flow and displays the reading through the instrument panel 201. The fixing rod 202 and the pressing plate 203 are used for sealed installation;

[0027] In this embodiment: The installation component includes an installation structure. A connecting sleeve 303 is provided at the bottom of the installation structure. A first sealing gasket 304 is provided inside the connecting sleeve 303, and a second sealing gasket 305 is provided below the connecting sleeve 303. The installation structure includes a detection pipe 301, and an installation pipe 302 is provided below the detection pipe 301. Four three-way valves connect two detection pipes 301 and a connecting pipe 101 to form an air path. At this time, the air flow sequentially passes through the two detection pipes 301 for detection. When the detection head 204 needs to be repaired, the fixing rod 202 is screwed out of the installation pipe 302, and the detection head 204 is repaired. After the repair is completed, the fixing rod 202 is screwed in again, and the pressing plate 203 presses the first sealing gasket 304 and the second sealing gasket 305, and cooperates with the connecting sleeve 303 to perform double sealing on the installation position.

[0028] Working principle: When in use, the device is installed on the detection pipe 301 path. Four three-way valves connect two detection pipes 301 and a connecting pipe 101 to form an air path. At this time, the air flow sequentially passes through the two detection pipes 301, so that the front and rear detection heads 204 perform double detection on the gas flow, and the readings are displayed through the instrument panel 201; when a failure occurs in the front detection head 204, the valve stem 104 is rotated by rotating the valve handle 107 on either side of the detection head 204, so that it drives the valve stem 104 on the other side to rotate through the synchronous pulley 105 and the synchronous belt 106, thereby simultaneously switching the gears of the front and rear valve bodies 103, connecting the bridge connecting pipe 102 to the air path, and disconnecting the detection pipe 301 from the air path at the same time. Without stopping the gas transmission, the fixing rod 202 can be unscrewed from the installation pipe 302, and the detection head 204 can be repaired. After the repair is completed, the fixing rod 202 is screwed back on, and the pressing plate 203 presses the first sealing gasket 304 and the second sealing gasket 305, and cooperates with the connecting sleeve 303 to perform double sealing on the installation position. The same applies when a failure occurs in the rear detection head 204.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas flow detection device, comprising an installation component for double-sealed installation, and a detection component installed at the bottom of the installation component for extending into a pipeline to detect gas flow, characterized in that: It further includes a switching component for bridging and bypassing and isolating the maintenance position. There are two installation components and two detection components respectively. The installation components are symmetrically installed on the switching component front and back. The installation component includes a connecting pipe (101). Two bridging structures are symmetrically arranged on the front and back sides of the connecting pipe (101). The bridging structure includes a bridging pipe (102). Two three-way valves are symmetrically arranged at both ends of the bridging pipe (102). A synchronous pulley (105) is arranged at the top of the three-way valve. A synchronous belt (106) is installed between the two synchronous pulleys (105).

2. The gas flow detection device according to claim 1, characterized in that: The detection component includes a dashboard (201). A fixing rod (202) is arranged on the dashboard (201). A detection head (204) is arranged in the fixing rod (202). A pressing plate (203) is arranged on the fixing rod (202).

3. A gas flow detection device according to claim 1, characterized in that: The installation component includes an installation structure. A connecting sleeve (303) is arranged at the bottom of the installation structure. A first sealing gasket (304) is arranged in the connecting sleeve (303). A second sealing gasket (305) is arranged below the connecting sleeve (303).

4. A gas flow detection device according to claim 1, characterized in that: The three-way valve includes a valve body (103). A valve stem (104) is arranged at the top of the valve body (103). A valve handle (107) is arranged at the top of the valve stem (104). The synchronous pulley (105) is installed on the valve stem (104).

5. The gas flow detection device according to claim 2, characterized in that: The pressing plate (203) is circular in shape and is stepped.

6. The gas flow detection device according to claim 3, characterized in that: The installation structure includes a detection pipe (301). An installation pipe (302) is arranged below the detection pipe (301).

Images