阅读说明：本技术 一种气体流量标定装置 (Gas flow calibration device ) 是由 徐蠡 于 2019-08-22 设计创作，主要内容包括：本发明公开了一种气体流量标定装置,具体为气体流量标定领域,包括所述气体标定计、标定显示器、通电管、放置柱,所述气体标定计侧面的底部固定连接有标定通气管,所述标定通气管的外表面固定套接有测压管,所述测压管的内腔放置有测压液,所述测压管的内腔固定安装有测压板。本发明通过设置防干扰装置,使得在气体流量计工作时,由于需要把标定的气体通入到标定管中,在通入过程中会把外界的空气也带入进去,这些气体会带入一些其他气体杂质,从而会影响标定数据,此时防干扰装置在标定管的顶部进行过滤,把通入进来的气体先过滤,然后再进行标定,既避免气体标定不准确的问题,又解决了实验数据的问题。(The invention discloses a gas flow calibration device, in particular to the field of gas flow calibration, which comprises a gas calibration meter, a calibration display, an electrifying pipe and a placing column, wherein the bottom of the side surface of the gas calibration meter is fixedly connected with a calibration vent pipe, the outer surface of the calibration vent pipe is fixedly sleeved with a pressure measuring pipe, pressure measuring liquid is placed in the inner cavity of the pressure measuring pipe, and a pressure measuring plate is fixedly installed in the inner cavity of the pressure measuring pipe. According to the invention, the anti-interference device is arranged, so that when the gas flowmeter works, since the calibrated gas needs to be introduced into the calibration pipe, external air can be brought in during the introduction process, and the gas can bring other gas impurities, so that calibration data can be influenced.)

1. The utility model provides a gas flow calibration device, includes gas calibration meter (1), demarcation display (2), circular telegram pipe (3), place post (4), its characterized in that: the gas calibrator comprises a gas calibrator (1), a calibrating vent pipe (5) and a pressure measuring pipe (6), wherein the bottom of the side surface of the gas calibrator (1) is fixedly connected with the calibrating vent pipe (5), the outer surface of the calibrating vent pipe (5) is fixedly connected with the pressure measuring pipe (6), pressure measuring liquid (7) is placed in the inner cavity of the pressure measuring pipe (6), a pressure measuring plate (8) is fixedly installed in the inner cavity of the pressure measuring pipe (6), a dismounting groove (9) is formed in the inner cavity of the pressure measuring pipe (6), a dismounting frame (10) is fixedly installed on one side of the dismounting groove (9), an activated carbon filter (11) is fixedly installed on the other side of the dismounting groove (9), a Suda ash filter (12) is fixedly installed on the bottom of the activated carbon filter (11), a sealing plate (13) is fixedly installed on the top of the pressure measuring pipe (6), a pipe (14) is communicated with, the other side of the sensor (15) is fixedly connected with a sensing line (16), and the other end of the sensing line (16) is fixedly connected with a control box (17).

2. A gas flow calibration device according to claim 1, wherein: survey the bottom fixed mounting of clamp plate (8) inner chamber and have filter screen (81), survey the bottom fixed mounting of clamp plate (8) inner chamber one side and have infrared inductor (82), one side fixed mounting of infrared inductor (82) has infrared induction head (83).

3. A gas flow calibration device according to claim 1, wherein: the bottom fixed mounting of control box (17) inner chamber has controller (171), one side fixedly connected with control line (172) of controller (171).

4. A gas flow calibration device according to claim 1, wherein: gaseous calibration meter (1) one side fixed mounting at inner chamber top has fuse (18), the bottom fixed mounting of fuse (18) has fusing block (19), fusing hole (20) have been seted up to the both sides of fusing block (19), the both sides fixedly connected with circular telegram line (21) of fusing hole (20), the one end fixedly connected with work ware (22) of circular telegram line (21).

5. A gas flow calibration device according to claim 1, wherein: one side of an inner cavity working device (22) of the gas calibration meter (1) is fixedly connected with one end of a calibration vent pipe (5), and the working device (22) is connected with a power-on pipe (3) through a power-on wire (21).

6. A gas flow calibration device according to claim 1, wherein: the other end of the control box (17) inner cavity control wire (172) is connected with the fuse (18), and the controller (171) is connected with the fuse (18) through the control wire (172).

7. A gas flow calibration device according to claim 1, wherein: the sensing line (16) is fixedly connected with an inner cavity controller (171) of the control box (17) through the control box (17).

8. A gas flow calibration device according to claim 1, wherein: two dismounting grooves (9) are formed, and two ends of one side of the dismounting frame (10) are respectively connected with the activated carbon filter (11) and the soda ash filter (12) through the dismounting grooves (9).

Technical Field

The invention relates to the technical field of gas flow calibration, in particular to a gas flow calibration device.

Background

The gas flowmeter has been used as a volumetric metering instrument for over one hundred years, and has the characteristics of high precision, wide range, small volume, light weight, convenience in installation and maintenance, reliability in use, durable service life and the like.

The existing instruments for calibrating gas flow are various, a gas waist wheel flowmeter and a wet gas flowmeter are commonly used, most of gas calibration is used in laboratories and research institutions at present, the wet gas flowmeter is basically used in the laboratories, gas is usually introduced into a calibration pipe when the gas is calibrated, then detection and calibration are carried out, and the introduced gas can carry some air to enter, the air contains various trace carbon monoxide and carbon dioxide, the gas can interfere the detection of flow calibration, so that the inaccuracy of the gas calibration is caused, and experimental data is influenced.

In addition, when demarcating gas flow, all can use pressure and temperature effect etc. to increase the precision and the accuracy of measurement, nevertheless when letting in gas too much sometimes, can make temperature and pressure too high too big to lead to the gas in the calibration pipe to rush out, thereby damage gas flowmeter, also can influence experimental efficiency.

Therefore, it is desirable to provide a device for calibrating a gas flow that is tamper-proof, precise in calibration, and damage-proof.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a gas flow calibration device, in which an anti-interference device and an anti-damage device are provided, so that when a trace amount of other gas enters a gas flow meter, the anti-interference device is used to adsorb and decompose the other gas, thereby introducing the gas to be calibrated.

In addition, when the gas in the calibration pipe is flushed out by pressure and temperature, the flowmeter is closed in time by using the damage prevention device, so that the gas is prevented from being flushed out to damage the flowmeter, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a gas flow calibration device comprises a gas calibration meter, a calibration display, an electrifying pipe and a placing column, the bottom of the side surface of the gas calibration meter is fixedly connected with a calibration vent pipe, the outer surface of the calibration vent pipe is fixedly sleeved with a piezometer pipe, the inner cavity of the pressure measuring pipe is provided with pressure measuring liquid, the inner cavity of the pressure measuring pipe is fixedly provided with a pressure measuring plate, the inner cavity of the piezometric tube is provided with a disassembly groove, one side of the disassembly groove is fixedly provided with a disassembly frame, the other side of the disassembly groove is fixedly provided with an activated carbon filter, the bottom of the activated carbon filter is fixedly provided with a Sodak ash filter, the top of the piezometric tube is fixedly provided with a sealing plate, the top of the sealing plate is fixedly connected with an inlet tube, the other side of the pressure measuring plate is fixedly provided with a sensor, the other side of the sensor is fixedly connected with a sensing line, and the other end of the sensing line is fixedly connected with a control box.

In a preferred embodiment, a filter screen is fixedly installed at the bottom of an inner cavity of the pressure measuring plate, an infrared sensor is fixedly installed at the bottom of one side of the inner cavity of the pressure measuring plate, and an infrared sensing head is fixedly installed at one side of the infrared sensor.

In a preferred embodiment, a controller is fixedly mounted at the bottom of the inner cavity of the control box, and a control line is fixedly connected to one side of the controller.

In a preferred embodiment, a fuse is fixedly mounted on one side of the top of the inner cavity of the gas calibration gauge, a fusing block is fixedly mounted on the bottom of the fuse, fusing holes are formed in two sides of the fusing block, live wires are fixedly connected to two sides of the fusing holes, and a working device is fixedly connected to one end of each live wire.

In a preferred embodiment, one side of the gas calibration meter inner cavity working device is fixedly connected with one end of the calibration vent pipe, and the working device is connected with the electrifying pipe through an electrifying wire.

In a preferred embodiment, the other end of the control box cavity control wire is connected with the fuse, and the controller is connected with the fuse through the control wire.

In a preferred embodiment, the sensing wire is fixedly connected with the control box inner cavity controller through the control box.

In a preferred embodiment, the detaching slots are opened in two, and both ends of one side of the detaching frame are respectively connected with the activated carbon filter and the soda ash filter through the detaching slots.

The invention has the technical effects and advantages that:

1. the anti-interference device is arranged, so that when the gas flowmeter works, the calibrated gas is required to be introduced into the calibration pipe, external air can be introduced into the calibration pipe in the introduction process, and the gas can be introduced into other gas impurities to influence calibration data;

2. according to the invention, the damage prevention device is arranged, so that when the pressure and temperature effects are used to increase the precision and accuracy of metering, when too much gas is introduced, the temperature and pressure are too high, so that the gas rushes out, at the moment, the damage prevention device can perform monitoring induction on one side of the calibration pipe, and when the gas reaches a certain value, the flowmeter is timely closed, so that the problem of damage of the flowmeter is avoided, and the problem of experiment efficiency is also solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the inner cavity structure of the pressure plate of the present invention.

Fig. 3 is a schematic diagram of the structure of the inner cavity of the control box of the invention.

Fig. 4 is a schematic structural diagram of the inner cavity of the gas calibration meter of the invention.

The reference signs are: 1. a gas calibration meter; 2. calibrating a display; 3. a power-on tube; 4. placing the column; 5. calibrating the vent pipe; 6. a piezometric tube; 7. measuring pressure liquid; 8. measuring a pressure plate; 9. disassembling the groove; 10. disassembling the frame; 11. An activated carbon filter; 12. a soda ash filter; 13. a sealing plate; 14. introducing a pipe; 15. a sensor; 16. a sensing line; 17. a control box; 81. a filter screen; 82. an infrared sensor; 83. an infrared sensor head; 171. a controller; 172. a control line; 18. a fuse; 19. fusing the block; 20. a fuse hole; 21. electrifying the wire; 22. a working device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The gas flow calibration device shown in the attached figures 1-4 comprises a gas calibration meter 1, a calibration display 2, an electrifying pipe 3 and a placing column 4, wherein the bottom of the side surface of the gas calibration meter 1 is fixedly connected with a calibration vent pipe 5, the outer surface of the calibration vent pipe 5 is fixedly sleeved with a pressure measuring pipe 6, pressure measuring liquid 7 is placed in the inner cavity of the pressure measuring pipe 6, a pressure measuring plate 8 is fixedly installed in the inner cavity of the pressure measuring pipe 6, a dismounting groove 9 is formed in the inner cavity of the pressure measuring pipe 6, a dismounting frame 10 is fixedly installed on one side of the dismounting groove 9, an active carbon filter 11 is fixedly installed on the other side of the dismounting groove 9, a Suda ash filter 12 is fixedly installed at the bottom of the active carbon filter 11, a sealing plate 13 is fixedly installed at the top of the pressure measuring pipe 6, an inlet pipe 14 is fixedly connected with the top of the sealing plate 13, a sensor 15 is fixedly installed, the other end of the sensing line 16 is fixedly connected with a control box 17.

As shown in fig. 2, a filter screen 81 is fixedly installed at the bottom of the inner cavity of the pressure measuring plate 8, an infrared sensor 82 is fixedly installed at the bottom of one side of the inner cavity of the pressure measuring plate 8, and an infrared sensor head 83 is fixedly installed at one side of the infrared sensor 82.

The implementation mode is specifically as follows: by arranging the pressure measuring plate 8, when liquid enters the inner cavity of the pressure measuring plate 8, the liquid is filtered and reduced by the filter screen 81, and when the liquid reaches the induction line of the infrared induction head 83, the liquid is conducted to the sensor 15 through the infrared inductor 82;

as shown in fig. 3, a controller 171 is fixedly mounted at the bottom of the inner cavity of the control box 17, and a control wire 172 is fixedly connected to one side of the controller 171.

The implementation mode is specifically as follows: by arranging the control box 17, when the sensor 15 is conducted to the controller 171 by using the sensing wire 16, the controller 171 is controlled to generate electricity through the control wire 172;

as shown in fig. 4, a fuse 18 is fixedly mounted on one side of the top of the inner cavity of the gas calibration gauge 1, a fuse block 19 is fixedly mounted on the bottom of the fuse 18, fuse holes 20 are formed in two sides of the fuse block 19, live wires 21 are fixedly connected to two sides of the fuse holes 20, and a working device 22 is fixedly connected to one ends of the live wires 21.

The implementation mode is specifically as follows: by arranging the gas gauge 1, when the control line 172 conducts power into the fuse 18, the fuse 18 drives the fusing block 19 to heat, so that the power line 21 in the fusing hole 20 is fused, and finally the working device 22 is turned off;

the working principle of the invention is as follows:

a preparation stage: firstly, a calibration vent pipe 5 is connected and installed at the bottom of one side of a gas calibration meter 1, a pressure measuring pipe 6 is sleeved on the outer surface of the calibration vent pipe 5, meanwhile, some pressure measuring liquid 7 is injected into the pressure measuring pipe 6, a pressure measuring plate 8 is installed at one section of the pressure measuring pipe 6, two detaching grooves 9 are formed in the top section of the pressure measuring pipe 6, a detaching frame 10 is connected with an active carbon filter 11 and a soda ash filter 12 through the detaching grooves 9, a sealing plate 13 is installed at the tops of the pressure measuring pipe 6 and the calibration vent pipe 5, a lead-in pipe 14 is connected and installed at the top of the sealing plate 13, a sensor 15 is installed at one side of the pressure measuring plate 8, a sensing line 16 is connected at one side of the sensor 15, and a control box 17 is connected at the other side of the sensing line 16.

The working stage is as follows: firstly, gas is introduced into the calibration vent pipe 5 through the inlet pipe 14, the gas passes through the activated carbon filter 11 and the Sodada ash filter 12 in the process of entering the calibration vent pipe 5, so that other gas is filtered by the activated carbon filter 11 and the Sodada ash filter 12, the gas for detecting calibration is left, after the gas is filtered, the activated carbon filter 11 and the Sodada ash filter 12 can be detached by the detaching frame 10, so that the gas is replaced and cleaned, meanwhile, when too much gas enters the gas calibration meter 1, the pressure is increased, so that the pressure measuring liquid 7 is pressed, when the pressure measuring liquid 7 enters the pressure measuring plate 8, the infrared induction head 83 senses the gas, so that the gas is conducted to the sensor 15 through the infrared inductor 82, and then conducted to the controller 171 from the sensor 15 through the sensing wire 16, and then the controller 171 generates electricity to the fuse 18 through the control wire 172, so as to heat the fuse 18 and the fusing block 19, thereby blowing the electrifying wire 21.

And (5) finishing: firstly, the electrifying wire 21 is pulled out, the pressure measuring liquid 7 slowly descends and stops to a certain degree, the sensor 15 and the controller 171 stop working, and the activated carbon filter 11 and the soda ash filter 12 are detached by the detaching frame 10 for cleaning.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.