CN204188422U - A kind of pipeline gas enclosure collects measurement mechanism - Google Patents

Abstract

The utility model relates to a measuring device for the amount of gas contained in a pipeline, in particular to a gas collecting device capable of collecting trace bubbles carried in large flow liquid. Including stop valve, flow meter, measuring barrel, hose, pool, collecting cover, collecting cover tray; the measuring barrel is connected to the collecting cover, the collecting cover is fixed in the pool through the collecting cover tray, and the measured large flow The air-entrained liquid in the pipeline is introduced into the collection cover for collection and measurement, and the shut-off valve and flow meter are connected to the hose. The measuring barrel and the collection cover are sealed by an O-ring. The measuring barrel and the collecting cover are fixed by a fixing hook. The water level in the pool should be higher than the connection position between the excess barrel and the collection cover. Water outlet holes are arranged on the collecting cover tray. The utility model adopts the drainage method to measure the gas inclusion volume of the pipeline, and has the advantages of simple structure, high reliability, simple operation and convenient multiple measurement.

Description

A pipeline entrainment gas collection and measurement device

technical field

The utility model relates to a measuring device for the amount of gas contained in pipelines, in particular to a gas collecting device capable of collecting trace bubbles carried in large flow liquid.

Background technique

The rocket filling method and the existence of PMD in the storage tank are likely to cause air bubbles to be included in the discharged liquid propellant, and the air bubbles will enter the engine with the propellant, which will have a greater impact on the pump engine and may lead to flight failure. Quantitative collection and evaluation of gas properties.

Contents of the invention

The purpose of the utility model is to provide a pipe entrainment gas collection and measurement device to solve the problem of collection and measurement of micro air bubbles carried in large flow liquid.

In order to achieve the above object, the technical scheme adopted by the utility model is:

A pipeline entrainment gas collection and measurement device, including a stop valve, a flow meter, a measuring barrel, a hose, a pool, a collection cover, and a collection cover tray; the measuring barrel is connected to the collection cover, and the collection cover is fixed in the pool through the collection cover tray, A hose is used to introduce the air-entrained liquid in the large-flow pipeline under test into the collection cover for collection and measurement, and the hose is connected with a stop valve and a flow meter.

The measuring barrel and the collection cover are sealed by an O-ring.

The measuring barrel and the collecting cover are fixed by a fixing hook.

The water level in the pool should be higher than the connection position between the excess barrel and the collection cover.

Water outlet holes are arranged on the collecting cover tray.

The working process of the device is as follows: before collecting and measuring, add water to the water pool to the level of the connection between the excess barrel and the collection cover; then fill the measuring barrel with water, invert it in the water, and connect the measuring barrel to the upper opening of the collecting cover , the connection position is sealed by the O-ring, and there is no air bubble in the measuring barrel during the connection process; during the collection and measurement process, extend the hose connected to the large flow pipe under the collection cover, open the stop valve, and the large flow pipe The water mixed with gas flows under the collection cover, and the water flows out along the outlet hole of the collection cover tray, and the trapped gas is collected in the measuring bucket. The flow in the large flow pipeline is measured by the flowmeter, and the volume of the trapped gas is measured by using the measuring bucket. .

The beneficial effects obtained by the utility model are:

The utility model adopts the drainage method to measure the gas inclusion volume of the pipeline, and has the advantages of simple structure, high reliability, simple operation and convenient multiple measurement.

Description of drawings

Fig. 1 is the structural diagram of the pipeline entrainment gas collection and measurement device described in the utility model;

In the figure: 1. Globe valve; 2. Flowmeter; 3. Measuring barrel; 4. Hose; 5. Pool; 6. O-ring; 7. Fixed hook; 8. Collection cover; 9. Collection cover tray, → Indicates the connection of a large-flow entrainment pipeline.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the utility model described a pipeline gas collection and measurement device includes a cut-off valve 1, a flow meter 2, a measuring barrel 3, a hose 4, a pool 5, an O-ring 6, a fixed hook 7, a collection Cover 8, collection cover tray 9; Measuring barrel 3 is connected with collecting cover 8, the interface between the two is sealed by O-ring 6, measuring barrel 3 and collecting cover 8 are fixed by fixing hook 7, and collecting cover tray 9 The collecting cover 8 is fixed in the pool 5, the water level requires a higher connection position between the excess barrel 3 and the collecting cover 8, and the collecting cover tray 9 is provided with a water outlet to facilitate the outflow of water. The hose 4 is used to introduce the air-entrained liquid in the large-flow pipeline to be measured into the collection cover 8 for collection and measurement. The hose 4 is connected with the shut-off valve 1 and the flow meter 2 .

The working process of the present utility model is as follows:

Before collecting and measuring, add water to the pool 5 until the water surface is higher than the connection between the excess barrel 3 and the collection cover 8; then fill the measuring barrel 3 with water, put it upside down in the water, and connect the measuring barrel 3 to the upper opening of the collecting cover 8 , the connection position is sealed by the O-ring 6 . Make sure there are no air bubbles in the measuring barrel during connection. During the collection and measurement process, extend the hose 4 connected to the large-flow pipeline to the bottom of the collection cover 8, open the stop valve 1, the water in the large-flow pipeline flows into the bottom of the collection cover 8, and the water flows along the outlet of the collection cover tray 9. The hole flows out, and the entrained gas is collected in the measuring barrel 3. The flow in the large flow pipeline is measured by the flow meter 2, and the volume of the entrained gas is measured by the measuring barrel 3.

The measuring barrel 3 is used to measure the volume of the entrained gas, and the collecting cover 8 is used to collect the gas entrained in the pipeline to avoid the inflow of a large flow of liquid, and the loss of the entrained gas due to the small collection surface. The measuring barrel 3 is connected with the collection cover 8, and the interface is sealed by the O-ring 6, and the measuring barrel 3 and the collection cover 8 are fixed by the fixing hook 7, so as to avoid the inflow of large flow liquid and cause the collection device to topple over.

The collecting and measuring device is placed in the pool 5, and the water level requires a high connection position between the excess barrel 3 and the collecting cover 8. The collecting cover is fixed in the pool by the collecting cover tray 9, and the collecting cover tray 9 is provided with a water outlet to facilitate the outflow of water. The hose 4 is used to introduce the air-entrained liquid in the large-flow pipeline under test into the collection cover 8 for collection and measurement, and the flow meter 2 is used to measure the fluid flow in the large-flow pipeline.

Claims (6)

1. A pipeline entrained gas collection and measurement device is characterized in that: the device comprises a shut-off valve (1), a flow meter (2), a measuring bucket (3), a flexible pipe (4), a pool (5), a collection cover ( 8), the collection cover tray (9); the measuring barrel (3) is connected with the collection cover (8), the collection cover (8) is fixed in the pool (5) through the collection cover tray (9), and the hose (4) is used to The gas-entrained liquid in the large-flow pipeline to be measured is introduced into the collection cover (8) for collection and measurement, and the shut-off valve (1) and the flow meter (2) are connected to the hose (4). 2. The pipeline gas collection and measuring device according to claim 1, characterized in that: the measuring barrel (3) and the collection cover (8) are sealed by an O-ring (6). 3. The device for collecting and measuring air entrained in pipelines according to claim 1, characterized in that: the measuring barrel (3) and the collecting cover (8) are fixed by a fixing hook (7). 4. The pipeline entrained gas collection and measuring device according to claim 1, characterized in that: the water level in the pool (5) is higher than the connection position between the excess barrel (3) and the collection cover (8). 5. The device for collecting and measuring air entrained in pipelines according to claim 1, characterized in that: a water outlet hole is set on the collecting cover tray (9). 6. The device for collecting and measuring air entrained in pipelines according to claim 1, characterized in that: the working process of the device is as follows: before collecting and measuring, add water to the pool (5) until the water surface is higher than the excess barrel (3) and the collecting cover (8) ) connection part; then fill the measuring barrel (3) with water, put it upside down in the water, and connect the measuring barrel (3) to the upper opening of the collecting cover (8), and connect the connecting position through the O-ring (6). Make sure that there are no air bubbles in the measuring barrel during the connection process; during the collection and measurement process, extend the hose (4) connected to the large flow pipeline under the collection cover (8), open the shut-off valve (1), and enter the large flow pipeline The water mixed with air flows under the collection cover (8), and the water flows out along the outlet hole of the collection cover tray (9), and the air contained is collected in the measuring barrel (3), and is measured by the flow meter (2) in the large flow pipe. Use the measuring barrel (3) to measure the volume of the entrained gas.