CN214538416U - Portable point type gas leakage flow measuring device - Google Patents
Portable point type gas leakage flow measuring device Download PDFInfo
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- CN214538416U CN214538416U CN202121049276.0U CN202121049276U CN214538416U CN 214538416 U CN214538416 U CN 214538416U CN 202121049276 U CN202121049276 U CN 202121049276U CN 214538416 U CN214538416 U CN 214538416U
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Abstract
The utility model discloses a portable some type gas leakage flow's measuring device relates to gas leakage and measures technical field. The measuring device comprises a gas collecting hood, a transition pipe, a linear proportional valve, a rotor flow meter and a control device, wherein the gas collecting hood is connected with one end of the transition pipe, the other end of the transition pipe is connected with a gas inlet of the linear proportional valve through a first connecting pipe, a gas outlet of the linear proportional valve is emptied, the other end of the transition pipe is connected with a gas inlet of the rotor flow meter through a second connecting pipe, a gas outlet of the rotor flow meter is emptied, and the linear proportional valve and the rotor flow meter are in signal connection with the control device. The gas collecting hood is used for collecting leaked gas, the flow value is obtained through the rotor flow meter, the ratio of the flow-divided gas is obtained through the linear proportional valve, the total leakage flow is obtained through calculation of the flow value and the flow value, the operation is simple, the data acquisition is rapid, and the field operation is convenient.
Description
Technical Field
The utility model relates to a gas leakage measures technical field, concretely relates to portable some type gas leakage flow's measuring device.
Background
In modern chemical production, process gas media are usually transported by pipelines, and the media have the characteristics of high temperature, high pressure, flammability, explosiveness and toxicity. Equipment can cause the leakage because of reasons such as corruption in the long-term operation process, when appearing leaking especially pipeline leakage, needs in time carry out the rapid survey to the leakage quantity of leaking the leakage point to carry out risk assessment, in time formulate processing scheme, avoid influencing normal production. At present, the gas leakage on site can be detected by the detection probe, the probe is placed at a point to be detected, when the gas leaks, the detection probe (gas sensor) can give an alarm, an operator can judge the leakage point according to the alarm, but the leakage amount of the leakage point cannot be known, and the risk assessment and the appropriate processing scheme cannot be made in time. Therefore, it is necessary to develop a measuring device capable of rapidly obtaining the gas leakage amount of the leakage point.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable some type gas leakage flow's measuring device solves current detection device and can't carry out the measuring problem to the leakage flow.
In order to solve the technical problem, the utility model adopts the following technical scheme: a portable point type gas leakage flow measuring device is characterized in that: the gas collecting hood is connected with one end of the transition pipe, the other end of the transition pipe is connected with a gas inlet of the linear proportional valve through a first connecting pipe, a gas outlet of the linear proportional valve is emptied, the other end of the transition pipe is connected with a gas inlet of the rotameter through a second connecting pipe, a gas outlet of the rotameter is emptied, and the linear proportional valve and the rotameter are in signal connection with the control device.
The gas collecting hood comprises a hood body and a sharp mouth part, wherein the hood body is a hemispherical shell with an opening at the bottom, the top of the hood body is connected with the sharp mouth part, and the sharp mouth part end is fixed on the transition pipe.
The further technical proposal is that the bottom of the cover body extends outwards to form a flexible sealing flange.
The gas collecting hood is externally provided with a reinforcing hood in a sealing mode, the bottom of the reinforcing hood is fixed on the flexible sealing flange, the reinforcing hood is provided with a gas inlet and a gas outlet, the gas inlet is connected with a compressed gas supply device through a first electromagnetic valve, and the gas outlet is provided with a second electromagnetic valve.
The further technical scheme is that an adhesive layer is arranged at the bottom of the flexible sealing flange, and release paper covers the adhesive layer.
The further technical proposal is that the air outlet of the linear proportional valve and the air outlet of the rotor flow meter are both connected with an air storage tank.
The working principle is as follows: when the gas collecting hood is used, the gas collecting hood is fixed at a leakage point, leaked gas is divided after passing through the transition pipe, one part of the leaked gas enters the rotor flow meter, the other part of the leaked gas enters the linear proportional valve, the rotor flow meter and the linear proportional valve feed measured data back to the control device, and an operator obtains total leakage flow through the obtained data.
Compared with the prior art, the beneficial effects of the utility model are that: the portable point-type gas leakage flow measuring device is simple in structure, collects leaked gas through the gas collecting hood, obtains a flow value through the rotor flow meter, obtains a ratio of the split gas through the linear proportional valve, obtains total leakage flow through calculation of the flow value and the flow value, is simple to operate, obtains data quickly, and facilitates field operation. In order to facilitate the collection of gas, the gas collecting hood is divided into a hood body and a sharp mouth part, the hood body is hemispherical so as to facilitate the hood body to cover a leakage point, and the sharp mouth part facilitates the gas output and the fixation of the hood body; in order to enable the cover body to more tightly cover the leakage point, the bottom of the cover body is provided with a flexible sealing flange which is sealed and fixed with the periphery of the leakage point in an adhesive mode; by arranging the reinforcing cover, compressed air is added into a cavity between the reinforcing cover and the gas collecting cover, and the flexible sealing flange is compressed by gas pressure to realize the sealing and fixing with the periphery of the leakage point; in order to prevent harmful gas from leaking through the measuring device and threatening the safety of operators, the gas outlet of the linear proportional valve and the gas outlet of the rotor flow meter are both connected with the gas storage tank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle gas-collecting hood of the present invention.
In the figure: 1-gas collecting hood, 101-hood body, 102-tip part, 103-flexible sealing flange, 2-transition pipe, 3-linear proportional valve, 4-rotor flow meter, 5-first connecting pipe, 6-second connecting pipe, 7-reinforcing hood, 701-gas inlet, 702-gas outlet, 8-first electromagnetic valve and 9-second electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
Fig. 1 shows a portable point-type gas leakage flow measuring device, which comprises a gas collecting hood 1, a transition pipe 2, a linear proportional valve 3, a rotor flow meter 4 and a control device, wherein the gas collecting hood 1 is connected with one end of the transition pipe 2, the other end of the transition pipe 2 is connected with a gas inlet of the linear proportional valve 3 through a first connecting pipe 5, a gas outlet of the linear proportional valve 3 is emptied, the other end of the transition pipe 2 is connected with a gas inlet of the rotor flow meter 4 through a second connecting pipe 6, a gas outlet of the rotor flow meter 4 is emptied, and the linear proportional valve 3 and the rotor flow meter 4 are in signal connection with the control device.
When the gas collecting hood is used, the gas collecting hood 1 is fixed at a leakage point, leaked gas is divided after passing through the transition pipe 2, one part of the leaked gas enters the rotor flow meter 4, the other part of the leaked gas enters the linear proportional valve 3, the measured data is fed back to the control device by the rotor flow meter 4 and the linear proportional valve 3, and an operator obtains the total leakage flow through the obtained data.
In order to facilitate the collection of gas, the gas collecting hood 1 comprises a hood body 101 and a sharp mouth part 102, the hood body 101 is a hemispherical shell with an opening at the bottom, the top of the hood body 101 is connected with the sharp mouth part 102, and the end part of the sharp mouth part 102 is fixed on the transition pipe 2. Transition pipe 2 adopts the rigid pipe, and first connecting pipe 5 and second connecting pipe 6 all can adopt flexible trachea, are convenient for accomodate and use. As shown in fig. 2, the gas collecting channel 1 is divided into a cover body 101 and a tip part 102, the cover body 101 being hemispherical to facilitate its covering of the leak, and the tip part 102 facilitating the gas output and the fixing of the cover body 101.
In order to make the cover 101 cover the leakage point more tightly, a flexible sealing flange 103, which may be made of rubber, extends outward from the bottom of the cover. To the fixed of the cover body 101, can be provided with the adhesive layer in flexible sealing flange 103 bottom, the adhesive layer coats and is stamped from type paper, tears off from type paper during the use, makes cover body 101 and leak point peripheral seal fixed through sticky form. In another form, a reinforcing cover 7 is provided, the bottom of the reinforcing cover 7 is fixed on the flexible sealing flange 103, an air inlet 701 and an air outlet 702 are provided on the reinforcing cover 7, the air inlet 701 is connected with a compressed air supply device through a first electromagnetic valve 8, and a second electromagnetic valve 9 is provided on the air outlet 702. When the gas-collecting hood is used, the flexible sealing flange 103 at the bottom of the gas-collecting hood 1 is placed on a leakage point, the first electromagnetic valve 8 is opened, compressed air is added into a cavity between the reinforcing hood 7 and the gas-collecting hood 1, the flexible sealing flange 103 is compressed by gas pressure, and the sealing and fixing of the flexible sealing flange 103 and the periphery of the leakage point are realized. After the measurement is finished, the second electromagnetic valve 9 is opened, the gas escapes, and the gas-collecting hood 1 is taken down.
In order to prevent harmful gas from leaking through the measuring device and threatening the safety of operators, the gas outlet of the linear proportional valve 3 and the gas outlet of the rotor flow meter 4 are both connected with a gas storage tank, and the leaked gas is temporarily collected through the gas storage tank to avoid the diffusion of the leaked gas.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More particularly, various variations and modifications are possible in the component parts and/or arrangements within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. A portable point type gas leakage flow measuring device is characterized in that: including gas collecting channel (1), transition pipe (2), linear proportional valve (3), rotameter (4) and controlling means, gas collecting channel (1) is connected with transition pipe (2) one end, and the transition pipe (2) other end is connected with linear proportional valve (3) air inlet through first connecting pipe (5), and linear proportional valve (3) gas outlet evacuation, transition pipe (2) other end pass through second connecting pipe (6) and are connected with rotameter (4) air inlet, and rotameter (4) gas outlet evacuation, linear proportional valve (3) and rotameter (4) all with controlling means signal connection.
2. A portable point type gas leak flow rate measuring apparatus according to claim 1, wherein: the gas-collecting hood (1) comprises a hood body (101) and a sharp mouth part (102), the hood body (101) is a hemispherical shell with an opening at the bottom, the top of the hood body (101) is connected with the sharp mouth part (102), and the end part of the sharp mouth part (102) is fixed on the transition pipe (2).
3. A portable point type gas leak flow rate measuring apparatus according to claim 2, wherein: a flexible sealing flange (103) extends outwards from the bottom of the cover body (101).
4. A portable point type gas leak flow rate measuring apparatus according to claim 3, wherein: the gas collecting channel (1) is externally provided with a reinforcing channel (7) in a sealing mode, the bottom of the reinforcing channel (7) is fixed to the flexible sealing flange (103), the reinforcing channel (7) is provided with a gas inlet (701) and a gas outlet (702), the gas inlet (701) is connected with a compressed gas supply device through a first electromagnetic valve (8), and the gas outlet (702) is provided with a second electromagnetic valve (9).
5. A portable point type gas leak flow rate measuring apparatus according to claim 3, wherein: the bottom of the flexible sealing flange (103) is provided with an adhesive layer, and the adhesive layer is covered with release paper.
6. A portable point type gas leak flow rate measuring apparatus according to claim 1, wherein: and the air outlet of the linear proportional valve (3) and the air outlet of the rotor flow meter (4) are both connected with an air storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049276.0U CN214538416U (en) | 2021-05-17 | 2021-05-17 | Portable point type gas leakage flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121049276.0U CN214538416U (en) | 2021-05-17 | 2021-05-17 | Portable point type gas leakage flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214538416U true CN214538416U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121049276.0U Active CN214538416U (en) | 2021-05-17 | 2021-05-17 | Portable point type gas leakage flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214538416U (en) |
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2021
- 2021-05-17 CN CN202121049276.0U patent/CN214538416U/en active Active
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