CN211205409U

CN211205409U - Wet-type micro-flow gas meter

Info

Publication number: CN211205409U
Application number: CN201921842147.XU
Authority: CN
Inventors: 陈学兵; 何洪洋
Original assignee: Beijing Taiyang Technology Co ltd
Current assignee: Beijing Taiyang Technology Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-08-07
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a wet-type micro-flow gas meter, including the shell, open the shell bottom has the air inlet, and air inlet department installs the admission line, and the support is installed to shell cavity bottom, and the support is "protruding" font structure, and first limiting plate and second limiting plate are installed respectively to the support both sides, rotate on the support to be connected with and turn over the board, the utility model discloses simple structure can measure small gas volume flow and intermittent type gas volume flow, has solved the problem that laboratory and specific place can't measure small gas flow, but also can realize long-time accumulative measurement.

Description

Wet-type micro-flow gas meter

Technical Field

The utility model relates to a gas flow detects technical field, specifically is a wet-type micro-flow gas meter.

Background

A gas flow meter is a meter that measures the flow of gas and is installed in a pipeline to record the amount of gas flowing through. Can measure, blast furnace gas flow meter, coke oven gas mass flow meter, gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, nitrogen, liquefied petroleum gas, hydrogen peroxide, flue gas, methane, butane, chlorine, fuel gas, biogas, carbon dioxide, oxygen, compressed air, argon, toluene, benzene, xylene, hydrogen sulfide, sulfur dioxide, ammonia. The gas flowmeter mainly comprises a target flowmeter, a vortex shedding flowmeter, a V-cone flowmeter, an integrated orifice plate flowmeter, a Willebar flowmeter and the like. With the rapid development of modern industry, the measurement accuracy requirements of the gas flow meter for the measurement of gases such as steam, nitrogen, carbon dioxide, hydrogen and the like are increasing, and therefore the calibration requirements of the gas flow meter are also increasing. However, the facilities for large scale calibration with these gases are not numerous, and therefore calibration with another fluid is almost the only option and in many cases a reasonable, alternative option.

In the laboratory and engineering research fields, it is necessary to measure minute gas volume flows in the range of tens to hundreds of ml/h. At present, in practical application, the mass flow is mostly measured by adopting a mass flow measuring mode to measure the gas flow with small flow, so that the mass flow is obtained, and the micro-flow is difficult to measure. The range of the flowmeter capable of directly measuring the volume flow is large, so that the micro flow is difficult to measure.

1. The existing small-flow measurement often adopts a mass flow meter, the mass flow meter obtains mass flow, and the gas flow can be obtained only by knowing the gas composition.

2. The existing wet gas volume flowmeter adopts a hollow rotary drum mode to measure gas flow, but the existing wet gas volume flowmeter needs gas with certain flow to push rotation, cannot achieve miniaturization, and therefore cannot be used for measuring tiny gas flow.

For the foregoing reasons, there is a need for a flowmeter that directly measures minute volumetric flows.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wet-type micro-flow gas meter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a wet-type micro-flow gas meter, includes the shell, open the shell bottom has the air inlet, air inlet department installs the admission line, the support is installed to shell inner chamber bottom, the support is "protruding" font structure, first limiting plate and second limiting plate are installed respectively to the support both sides, it turns over the board to rotate to be connected with on the support.

Preferably, the support includes left protruding edge, right protruding edge and vertical section, vertical section bottom both ends are left protruding edge of fixed connection and right protruding edge respectively, it has first through-hole to open on the protruding edge of a left side, it has the second through-hole to open on the protruding edge of the right side, first through-hole and second through-hole communicate inlet duct respectively.

Preferably, a first bolt hole is formed in the vertical section of the support, a second bolt hole is formed in the turning plate, the support is connected with the turning plate through a rotating shaft, and the rotating shaft is installed between the first bolt hole and the second bolt hole.

Preferably, the top of the shell is open, and the shell is filled with water as a working medium.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure can measure small gas volume flow and intermittent type gas volume flow, has solved the problem that laboratory and specific place can't measure small gas flow, but also can realize long-time accumulative measurement.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a wet-type micro-flow gas meter, includes shell 1, and 1 top of shell is the opening form, 1 interior full water of shell is as working medium, open 1 bottom of shell has the air inlet, air inlet department installs inlet duct 2, support 3 is installed to 1 inner chamber bottom of shell, support 3 is "protruding" font structure, first limiting plate 4 and second limiting plate 5 are installed respectively to 3 both sides of support, it is connected with and turns over board 6 to rotate on the support 3.

The utility model discloses in, support 3 includes left protruding edge 7, right protruding edge 8 and vertical section 9, vertical section 9 bottom both ends are the left protruding edge 7 of fixed connection and the right protruding edge 8 respectively, it has first through-hole 10 to open on the protruding edge 7 in a left side, it has second through-hole 11 to open on the protruding edge 8 in the right side, first through-hole 10 and second through-hole 11 communicate admission line 2 respectively.

The utility model discloses in, it has first bolt hole to open on the vertical section 9 of support 3, it has the second bolt hole to open on turning over board 6, support 3 with turn over and be connected through rotation axis 12 between the board 6, rotation axis 12 is installed between first bolt hole and second bolt hole.

The working principle is as follows: the turning plate is arranged on the bracket by a shaft and can rotate around the shaft, and can only turn left and right by the limit of two sides of the bracket and the dead weight. The flap has two symmetrical spaces and can contain a certain amount of gas in water.

The middle part of the lower part of the shell is provided with an air inlet. The measured gas forms bubbles to float upwards in water after entering the shell, enters a space of the turning plate, buoyancy generated by the gas after the gas on one side is fully stored is larger than gravity borne by the turning plate, the turning plate turns to the other side, meanwhile, the gas is discharged, the other side begins to accumulate the gas again until the buoyancy borne by the turning plate is larger than the gravity, and the gas is discharged. Since the volume of the flap is known, the gas flow through the meter can be obtained by recording the number of times the flap is turned back and forth.

To sum up, the utility model discloses simple structure can measure small gas volume flow and intermittent type gas volume flow, has solved the problem that laboratory and specific place can't measure small gas flow, but also can realize long-time accumulative measurement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A wet micro-flow gas meter comprising a housing (1), characterized in that: open shell (1) bottom has the air inlet, air inlet department installs inlet duct (2), support (3) are installed to shell (1) inner chamber bottom, support (3) are "protruding" font structure, first limiting plate (4) and second limiting plate (5) are installed respectively to support (3) both sides, it turns over board (6) to rotate to be connected with on support (3).

2. A wet micro-flow gas meter according to claim 1, wherein: support (3) are protruding along (7), the right side is protruding along (8) and vertical section (9) including a left side, vertical section (9) bottom both ends are protruding along (8) on (7) and the right side of left side of fixed connection respectively, it has first through-hole (10) to open on protruding edge (7) of a left side, it has second through-hole (11) to open on protruding edge (8) of the right side, first through-hole (10) and second through-hole (11) communicate admission line (2) respectively.

3. A wet micro-flow gas meter according to claim 1, wherein: a first bolt hole is formed in the vertical section (9) of the support (3), a second bolt hole is formed in the turning plate (6), the support (3) and the turning plate (6) are connected through a rotating shaft (12), and the rotating shaft (12) is installed between the first bolt hole and the second bolt hole.

4. A wet micro-flow gas meter according to claim 1, wherein: the top of the shell (1) is open, and the shell (1) is filled with water as a working medium.