CN219284379U

CN219284379U - Gas flow detection device

Info

Publication number: CN219284379U
Application number: CN202320781041.3U
Authority: CN
Inventors: 闫泳霖; 谢栩; 吴孟; 林铿
Original assignee: Chaozhou Shenneng City Gas Development Co ltd
Current assignee: Chaozhou Shenneng City Gas Development Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-06-30
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a gas flow detection device, which comprises a gas storage tank, a direct flow pipe, a vacuum pump and a purifying tank, wherein a sonic nozzle pipe is arranged on the right side of the gas storage tank, the direct flow pipe is arranged on the left side of the gas storage tank, a steady flow piece is arranged on the inner wall of the direct flow pipe, the vacuum pump is arranged on the left side of the direct flow pipe, the purifying tank is arranged at the top of the vacuum pump, and a filtering piece is fixed on the purifying tank. In the utility model, the arranged steady flow piece is composed of the first honeycomb plate, the connecting pipe and the second honeycomb plate and is of an integrated structure, when in use, fluid can sequentially pass through the first honeycomb plate, the connecting pipe and the second honeycomb plate, a honeycomb-shaped combined straight pipe structure is adopted, a good steady flow effect is achieved, the detection precision can be improved, and then the first filter screen, the second filter screen and the third filter screen of the arranged filter piece can sequentially filter gas, so that the effect of treating the gas can be achieved, the influence of particulate matters on detection can be avoided, and the detection precision is further improved.

Description

Gas flow detection device

Technical Field

The utility model relates to the technical field of gas flow detection, in particular to a gas flow detection device.

Background

In order to ensure the quality of the gas flow meter and the accuracy in use, the metering method comprises the step of putting the gas flowmeter and the steam flowmeter into a forced verification range. Therefore, the gas meter must be tested or certified for its nominal metering performance on a standard device prior to shipment or use. The gas flow standard device adopting the sonic nozzle method is widely applied to verification and calibration of a gas flowmeter due to the characteristics of simple structure, stable performance, high accuracy, convenient maintenance and the like.

Through retrieval, the patent with the bulletin number of CN216925693U discloses a sonic nozzle flow detection device, and the content of the sonic nozzle flow detection device records that the sonic nozzle flow detection device comprises a sonic nozzle pipe, an air inlet pipe I, a stagnation container and a guiding-out component, wherein the air inlet pipe I is arranged on the side surface of the sonic nozzle pipe, one end of the air inlet pipe I is provided with a filtering component, and the air outlet end of the filtering component is provided with an air inlet pipe; the side surface of the stagnation container is communicated with the sonic nozzle pipe, the top end of the stagnation container is fixedly provided with a pump body, and the pump body is connected with the stagnation container through an air duct; the guiding-out component is arranged on the side surface of the sonic nozzle pipe; when the flow detection device is used, air can be effectively filtered, and the flow is detected … … ", and the content shows that the flow detection device of the patent is not provided with a steady flow structure, so that disturbance of fluid flow can have a certain influence on metering, the accuracy is low, and certain defects exist.

Disclosure of Invention

The present utility model is directed to solving the problems of the prior art or related art.

The technical scheme adopted by the utility model is as follows: the utility model provides a gas flow detection device, includes gas storage tank, straight flow pipe, vacuum pump and purifying tank, the right side of gas storage tank is provided with sonic nozzle pipe, the straight flow pipe sets up the left side of gas storage tank, the inner wall of straight flow pipe is provided with the stationary flow spare, the vacuum pump sets up the left side of straight flow pipe, the purifying tank sets up the top of vacuum pump, be fixed with the filter on the purifying tank.

Preferably, the sonic nozzle tubes are equidistantly provided with a plurality of sonic nozzle tubes, and the sonic nozzle tubes are provided with valves.

Preferably, the direct current pipe is provided with a first flowmeter.

Preferably, the steady flow piece comprises a first honeycomb plate arranged on the inner wall of the direct-current pipe, a connecting pipe arranged on the right side of the first honeycomb plate and a second honeycomb plate arranged on the right side of the connecting pipe.

Preferably, the bottom of purifying tank is provided with the conveyer pipe, and the bottom and the vacuum pump fixed connection of conveyer pipe, the inner wall of purifying tank is provided with the dog.

Preferably, the filter element comprises a bracket connected with the inside of the purifying tank through bolts, a first filter screen arranged on the bracket, a second filter screen arranged on the bracket and a third filter screen arranged on the bracket, wherein the bracket is fixedly connected with the purifying tank through bolts, the aperture of the first filter screen is larger than that of the second filter screen, and the aperture of the second filter screen is larger than that of the third filter screen.

Preferably, the air conditioner further comprises an air collection box, wherein the air collection box is arranged on the right side of the sonic nozzle pipe, a discharge pipe is arranged on the right side of the air collection box, and a second flowmeter is arranged on the discharge pipe.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows: the utility model discloses the stationary flow spare of setting comprises first honeycomb panel, connecting pipe and second honeycomb panel, as an organic whole structure, when using, fluid can loop through first honeycomb panel, connecting pipe and second honeycomb panel, honeycomb combination straight tube structure has been adopted, fine stationary flow effect has, can improve the detection precision, then the first filter screen of the filter element of setting, second filter screen and third filter screen can filter gas in proper order, but reach the gaseous effect of handling, can avoid particulate matter to influence and detect, detection precision has further been improved, simultaneously because the support of filter element is through the bolt fastening on purifying tank, can dismantle the support through rotatory bolt, conveniently clear up first filter screen after the dismantlement, second filter screen and third filter screen.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the purification tank of the present utility model;

FIG. 3 is a schematic view of the filter element of FIG. 2 according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a straight flow tube of the present utility model;

FIG. 5 is a schematic diagram of the flow stabilizer of FIG. 4 according to the present utility model.

Reference numerals:

100. a gas storage tank; 110. a sonic nozzle tube; 120. a valve;

200. a straight flow pipe; 210. a first flowmeter; 220. a steady flow member; 221. a first honeycomb panel; 222. a connecting pipe; 223. a second honeycomb panel;

300. a vacuum pump;

400. a purification tank; 410. a stop block; 420. a delivery tube; 430. a filter; 431. a bracket; 432. a first filter screen; 433. a second filter screen; 434. a third filter screen;

500. a gas collection box; 510. a discharge pipe; 520. a second flowmeter.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the present utility model are described below with reference to the accompanying drawings to provide a gas flow detection device.

Embodiment one:

referring to fig. 1 to 5, a first embodiment of the present utility model provides a gas flow rate detecting apparatus including a gas tank 100, a direct flow pipe 200, a vacuum pump 300, a purge tank 400, and a gas collecting tank 500.

Specifically, the right side of the gas storage tank 100 is provided with a sonic nozzle pipe 110, the sonic nozzle pipes 110 are equidistantly provided with a plurality of sonic nozzle pipes 110, the sonic nozzle pipes 110 are provided with valves 120, and the valve 120 shell controls the flow of the sonic nozzle pipes 110 and the switch so as to be convenient for detection.

Specifically, the straight flow pipe 200 is disposed on the left side of the gas storage tank 100, the flow stabilizing piece 220 is disposed on the inner wall of the straight flow pipe 200, the flow stabilizing piece 220 includes a first honeycomb plate 221 disposed on the inner wall of the straight flow pipe 200, a connecting pipe 222 disposed on the right side of the first honeycomb plate 221, and a second honeycomb plate 223 disposed on the right side of the connecting pipe 222, fluid can sequentially pass through the first honeycomb plate 221, the connecting pipe 222 and the second honeycomb plate 223, a honeycomb combined straight pipe structure is adopted, a good flow stabilizing effect is achieved, the detection accuracy is high, the first flowmeter 210 is disposed on the straight flow pipe 200, and fluid in the straight flow pipe 200 can be detected through the first flowmeter 210 so as to be detected.

Specifically, the vacuum pump 300 is disposed at the left side of the direct current pipe 200, and uses advanced vacuum generating equipment instead of high-energy noise equipment such as water ring type or roots type, so as to ensure that the sonic nozzle reaches a critical state during operation, thereby greatly reducing the total energy consumption of the device and saving the operation cost.

Specifically, the purification tank 400 is disposed at the top of the vacuum pump 300, the filtration member 430 is fixed on the purification tank 400, the filtration member 430 comprises a bracket 431 connected to the inside of the purification tank 400 by bolts, a first filter screen 432 disposed on the bracket 431, a second filter screen 433 disposed on the bracket 431, and a third filter screen 434 disposed on the bracket 431, the aperture of the first filter screen 432 is larger than that of the second filter screen 433, and the aperture of the second filter screen 433 is larger than that of the third filter screen 434, the first filter screen 432, the second filter screen 433 and the third filter screen 434 of the filtration member 430 can sequentially filter fluid, the effect of treating gas is achieved, the influence of particulate matters on detection can be avoided, the detection accuracy is improved, meanwhile, since the bracket 431 of the filtration member 430 is fixed on the purification tank 400 by bolts, the bracket 431 can be disassembled by rotating the bolts, the first filter screen 432, the second filter screen 433 and the third filter screen 434 are conveniently cleaned after the bracket 431 is fixedly connected with the purification tank 400 by bolts, the bottom end of the purification tank 400 is provided with the conveying pipe 420, and the bottom end of the conveying pipe 420 is fixedly connected with the vacuum pump 300, the inner wall of the purification tank 400 is provided with the stop 410, and the stop member 410 is used for fixing the filtration member 430.

Specifically, the gas collecting tank 500 is disposed at the right side of the sonic nozzle tube 110, the discharge tube 510 is disposed at the right side of the gas collecting tank 500, the second flowmeter 520 is disposed on the discharge tube 510, and the gas collecting tank 500 can collect fluid and discharge the fluid through the discharge tube 510 so as to detect the fluid through the second flowmeter 520.

The working principle and the using flow of the utility model are as follows: when the device is used, fluid can be conveyed into the direct flow pipe 200 through the purification tank 400 by the vacuum pump 300, when the fluid passes through the purification tank 400, the first filter screen 432, the second filter screen 433 and the third filter screen 434 of the filter element 430 can sequentially filter the fluid, the effect of treating the gas is achieved, the detection effect is avoided, the detection precision is improved, meanwhile, the bracket 431 of the filter element 430 is fixed on the purification tank 400 through bolts, the bracket 431 can be detached through the rotating bolts, the first filter screen 432, the second filter screen 433 and the third filter screen 434 can be conveniently cleaned after the detachment, when the fluid passes through the direct flow pipe 200, because the flow stabilizing element 220 is formed by the first honeycomb plate 221, the connecting pipe 222 and the second honeycomb plate 223, when the device is used, the fluid can sequentially pass through the first honeycomb plate 221, the connecting pipe 222 and the second honeycomb plate 223, the honeycomb combined straight pipe structure is adopted, the detection precision is high, the fluid in the direct flow pipe 200 can be detected through the first flowmeter 210, the fluid in the direct flow pipe 200 can continuously pass through the box 100, the sonic nozzle pipe 110, the gas collecting box 500 and the second flowmeter 510 can be compared when the fluid can pass through the second flowmeter 510.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A gas flow rate detection device, comprising:

a gas storage tank (100), wherein a sonic nozzle pipe (110) is arranged on the right side of the gas storage tank (100);

a direct current pipe (200), wherein the direct current pipe (200) is arranged at the left side of the gas storage tank (100), and a steady flow piece (220) is arranged on the inner wall of the direct current pipe (200);

a vacuum pump (300), the vacuum pump (300) being arranged on the left side of the straight flow pipe (200);

the purifying tank (400), purifying tank (400) set up the top of vacuum pump (300), purifying tank (400) is last to be fixed with filter (430).

2. A gas flow rate detection apparatus according to claim 1, wherein a plurality of sonic nozzle tubes (110) are equidistantly arranged, and a plurality of valves (120) are arranged on each sonic nozzle tube (110).

3. A gas flow rate detection apparatus according to claim 1, characterized in that the straight flow pipe (200) is provided with a first flow meter (210).

4. A gas flow rate detection apparatus according to claim 1, wherein said flow stabilizing member (220) comprises a first honeycomb plate (221) provided on an inner wall of said straight flow pipe (200), a connection pipe (222) provided on a right side of said first honeycomb plate (221), and a second honeycomb plate (223) provided on a right side of said connection pipe (222).

5. The gas flow detection device according to claim 1, wherein a delivery pipe (420) is provided at the bottom end of the purge tank (400), and the bottom end of the delivery pipe (420) is fixedly connected with the vacuum pump (300), and a stopper (410) is provided at the inner wall of the purge tank (400).

6. The gas flow rate detection apparatus according to claim 1, wherein the filter (430) comprises a bracket (431) screwed to the inside of the purge tank (400), a first filter screen (432) provided on the bracket (431), a second filter screen (433) provided on the bracket (431), and a third filter screen (434) provided on the bracket (431), the bracket (431) is fixedly connected to the purge tank (400) by a bolt, the first filter screen (432) has a larger pore diameter than the second filter screen (433), and the second filter screen (433) has a larger pore diameter than the third filter screen (434).

7. The gas flow rate detection apparatus according to claim 1, further comprising a gas collection tank (500), the gas collection tank (500) being disposed on the right side of the sonic nozzle tube (110), a discharge tube (510) being disposed on the right side of the gas collection tank (500), and a second flowmeter (520) being disposed on the discharge tube (510).