A positive displacement water gas separator

Abstract

The present application relates to the field of pipeline equipment, and discloses a volumetric water-gas separator, which comprises a shell and a separation plate, the shell is in sealed connection with a pressure relief port of a pipeline, the separation plate is located at the bottom of the shell, the separation plate is located below the inner wall of the pipeline, the separation plate is located above the liquid surface of a water flow cavity, the separation plate and the shell form a shunt cavity, the separation plate is arranged in an inclined downward manner, the lower end of the separation plate and the shell form a shunt air inlet, the shunt air inlet is located at one end of the pressure relief port of the pipeline close to a water inlet of the pipeline, a pressure relief hole is arranged on the shell, and a pressure relief mechanism is installed at the pressure relief hole.The present application divides the airflow in front of the water flow and discharges the airflow from the pressure relief hole, reduces the resistance of the airflow to the water flow, and reduces the air resistance;the present application also intercepts and divides the gas above the water flow, timely discharges the gas in the pipeline, and avoids the occurrence of pipe explosion;with the increase of the air pressure in the shunt cavity, water droplets and impurities are also extruded out of the shunt cavity and re-enter the water flow in the pipeline;and the present application solves the problem that the traditional exhaust valve is easily stuck and cannot effectively discharge air.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipeline equipment, in particular to a volumetric water-air separator. BACKGROUND

[0002] In the process of long-distance water supply, air aggregation is prone to occur in the water pipe when passing through some complex terrains, and if the air is not discharged in time, the water supply pipe may be burst.

[0003] Currently, an air discharge valve (piston type and ball type) is mainly installed on the water pipe, which is easy to be blocked by sundries in the pipeline, such as rust produced by pipe rust, leaves, branches, small stones and the like entering the pipeline after pipe burst, and the air discharge valve is easy to be blocked by these sundries and cannot effectively discharge air. SUMMARY

[0004] The present application aims to provide a volumetric water-air separator to solve the problem that the traditional air discharge valve installed on the water pipe is easy to be blocked and cannot effectively discharge air.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a volumetric water-air separator, comprising a shell and a separation plate, the shell is in close connection with the pressure relief port of the pipeline, the separation plate is located at the bottom of the shell, the separation plate is located below the inner wall of the pipeline, the separation plate is located above the liquid surface of the water flow cavity, the separation plate and the shell form a shunt cavity, the separation plate is inclined downward, the lower end of the separation plate and the shell form a shunt air inlet, the shunt air inlet is located at one end of the pressure relief port of the pipeline close to the water inlet of the pipeline, a pressure relief hole is arranged on the shell, and a pressure relief mechanism is installed at the pressure relief hole.

[0006] The principle of the present application is as follows: initially, the pipeline is filled with gas or contains part of the gas, under the action of the water flow in the pipeline, the air in the pipeline moves in the direction of the water flow, the flow rate of the gas is greater than that of the liquid, part of the gas will enter the shunt cavity and be discharged from the pressure relief port, thereby reducing the resistance of the gas in front of the pipeline to the water flow and accelerating the flow rate of the water; due to the difference in density between the gas and the liquid, the gas will be located above the liquid, when the water flow passes through the separation plate, the separation plate separates the gas and the liquid, and the separation plate guides the gas to the shunt cavity, thereby timely discharging the gas in the water pipeline and avoiding the occurrence of pipe burst.

[0007] The scheme has the advantages that: the air flow in front of the water flow is divided and discharged from the pressure relief hole, the air resistance to the water flow is reduced, and the air resistance is reduced; the air above the water flow is intercepted and divided, and the air in the pipeline is discharged in time to avoid the pipe explosion phenomenon; the separation plate is inclined, the water droplets carried into the diversion chamber will re-enter the water flow in the pipeline under the action of gravity, and the water droplets and impurities will be extruded out of the diversion chamber as the air pressure in the diversion chamber increases, and re-enter the water flow in the pipeline; the problem that the traditional exhaust valve is easily stuck and cannot effectively exhaust is solved, the structure is simple, and the device is convenient and practical.

[0008] Preferably, as an improvement, the separation plate is in sliding connection with the inner wall of the shell, the pressure relief mechanism includes a blocking block and a connecting rod, the blocking block is used for blocking the pressure relief hole, the cross-sectional area of the blocking block gradually decreases from top to bottom, one end of the connecting rod is connected with the blocking block, the other end of the connecting rod is connected with the separation plate, the bottom of the shell is provided with a limiting portion for limiting the separation plate from separating from the shell, and the separation plate slides on the shell with the change of the liquid level in the pipeline. Before the pipeline is filled with water, the separation plate falls under the action of its own gravity to drive the connecting rod and the blocking block to fall, so that the top of the blocking block is located below the pressure relief hole, at this time, the pressure relief hole is completely opened, and the air can be quickly discharged from the pressure relief hole after water enters the pipeline, thereby reducing the resistance to the water flow; when the water flow reaches the separation plate, the separation plate moves upward under the action of the buoyancy of the liquid, the separation plate drives the blocking block to move upward, and the blocking block reduces the size of the space through which the gas in the pressure relief hole passes, so that the air flow is easily gathered in the diversion chamber, the air pressure in the diversion chamber is increased, a pressure difference is formed between the diversion chamber and the outside, the gas in the diversion chamber is continuously discharged, and the pipe explosion phenomenon is reduced.

[0009] Preferably, as an improvement, the blocking block is in the shape of a circular truncated cone, and the bottom of the blocking block is in close contact with the pressure relief hole. The blocking block is arranged in the shape of a circular truncated cone, the pressure relief hole is conveniently blocked, and the impact damage of the air flow to the blocking block is reduced.

[0010] Preferably, as an improvement, the top of the blocking block is provided with an identification rod, and the identification rod is used for displaying the liquid level in the pipeline and the water flow position in the pipeline. Through the identification rod, the staff can know the size of the water flow and the position of the water flow in the pipeline, which is more convenient, and the size change of the water flow can be used to judge the pipeline leakage point.

[0011] Preferably, as an improvement, the separation plate is provided with a plug, and the plug is used for changing the size of the diversion chamber and blocking the pressure relief hole. During the upward movement of the separation plate, the size of the diversion chamber can be changed, the blocking degree of the pressure relief mechanism can be controlled, and the air pressure in the diversion chamber can be conveniently regulated.

[0012] Preferably, as an improvement, the plug head comprises, from top to bottom, a plugging part, a deformation part and a connecting part, the deformation part is connected with the plugging part and the connecting part at two ends respectively, the connecting part is connected with the separation plate, and the deformation part is used for changing the distance between the plugging part and the connecting part. With the increase of the liquid level, the distance between the plugging part and the connecting part is changed through the deformation part, and finally the plugging part blocks the pressure relief hole. When the liquid level is high, the probability of pipe explosion is small, and at this time the pressure relief hole is closed to avoid the entry of external gas and impurities into the pipeline.

[0013] Preferably, as an improvement, the separation plate is arc-shaped at the end of the shunt air inlet. The arc-shaped structure increases the contact area and has a better guiding effect on the airflow.

[0014] Preferably, as an improvement, the thickness of the separation plate at the end of the shunt air inlet is smaller than that of the sealing connection section between the separation plate and the shell. This is more convenient for separating gas and liquid.

[0015] Preferably, as an improvement, the shell and the separation plate are connected in a detachable manner. This is convenient for installation and replacement of the separation plate.

[0016] Preferably, as an improvement, the shell is arc-shaped at the end of the shunt air inlet. The arc-shaped structure increases the contact area and has a better guiding effect on the airflow. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The figure is a structural schematic diagram of an embodiment of the application.

[0018] Figure 2 The figure is a partial structural schematic diagram of the separation plate and the plug of an embodiment of the application. DETAILED DESCRIPTION

[0019] The following will be further described in detail through specific embodiments:

[0020] The reference signs in the drawings of the specification include: pipeline 1, water flow cavity 101, shell 2, shunt cavity 201, separation plate 3, connecting part 4, deformation part 5, plugging part 6, connecting rod 7, plugging block 8, and identification rod 9.

[0021] The embodiment is basically as shown in the accompanying Figure 1 and accompanying Figure 2 drawings:

[0022] A kind of displacement water-gas separator, including shell 2 and separation plate 3, shell 2 is sealed with the pressure relief port of pipeline 1, shell 2 seals pressure relief port, separation plate 3 is located at the bottom of shell 2, the separation plate 3 is located below the inner wall of pipeline 1, the separation plate 3 is located above the liquid level of water flow cavity 101, the separation plate 3 forms shunt cavity 201 with shell 2, the lower end of the separation plate 3 forms shunt air inlet with shell 2, and the shunt air inlet is located at the end of the pressure relief port of pipeline 1 close to the water inlet of pipeline 1.Pipeline 1 is filled with gas or contains part of gas, under the action of water flow in pipeline 1, air in pipeline 1 moves to the front of water flow, the flow rate of gas is greater than the flow rate of liquid, part of gas will enter into shunt cavity 201, and is discharged from pressure relief port, to reduce the resistance of gas in front of pipeline 1 to water flow, and accelerate the flow rate of water.In addition, when water flow passes through separation plate 3, separation plate 3 separates gas and liquid, and separation plate 3 guides gas into shunt cavity 201, to timely discharge gas in pipeline 1, to avoid the occurrence of pipe explosion.

[0023] The separation plate 3 is arranged obliquely downward, and the separation plate 3 is arranged obliquely, so that when water droplets are carried into the shunt cavity 201, the water droplets re-enter the water flow in the pipeline 1 under the action of gravity, and also extrude the water droplets and impurities out of the shunt cavity 201 as the air pressure in the shunt cavity 201 increases, so that the water droplets and impurities re-enter the water flow in the pipeline 1, thereby solving the problem that the traditional exhaust valve is easily stuck and cannot effectively exhaust, and the structure is simple and convenient to use.

[0024] The shell 2 is provided with a pressure relief hole, and a pressure relief mechanism is installed at the pressure relief hole.

[0025] The separation plate 3 is slidably connected with the inner wall of the shell 2, the bottom of the shell 2 is provided with a limiting portion for limiting the separation plate 3 from being separated from the shell 2, and the separation plate 3 slides on the shell 2 as the liquid level in the pipeline 1 changes.The shell 2 and the separation plate 3 are connected in a detachable manner.The separation plate 3 is convenient to install and replace.The limiting portion and the shell 2 are connected in a detachable manner, such as by bolts, and after the limiting portion is removed, the separation plate 3 and the shell 2 can be separated.

[0026] The end of the separation plate 3 at the shunt air inlet is arc-shaped.The arc-shaped structure increases the contact area and is better for guiding the airflow.The thickness of the end of the separation plate 3 at the shunt air inlet is less than the thickness of the sealed connection section of the separation plate 3 and the shell 2, which is more convenient for separating gas and liquid.

[0027] The end of the shell 2 at the shunt air inlet is arc-shaped.The arc-shaped structure increases the contact area and is better for guiding the airflow.

[0028] The pressure relief mechanism comprises a blocking block 8 and a connecting rod 7, the blocking block 8 is used for blocking the pressure relief hole, the cross-sectional area of the blocking block 8 gradually decreases from top to bottom, one end of the connecting rod 7 is connected with the blocking block 8, the other end of the connecting rod 7 is connected with the separation plate 3, before the pipeline 1 is filled with water, the separation plate 3 drives the connecting rod 7 and the blocking block 8 to fall under the action of its own gravity, so that the top of the blocking block 8 is below the pressure relief hole, at this time the pressure relief hole is completely opened, after the water enters the pipeline 1, the gas can be quickly discharged from the pressure relief hole, reducing the resistance to water flow; when the water flow reaches the separation plate 3, under the action of the buoyancy of the liquid, the separation plate 3 moves upward, the separation plate 3 drives the blocking block 8 to move upward, the blocking block 8 reduces the size of the space through which the gas in the pressure relief hole passes, so as to facilitate the airflow to gather in the shunt cavity 201, so that the air pressure in the shunt cavity 201 increases, so that the shunt cavity 201 forms a pressure difference with the outside, continuously discharging the gas in the shunt cavity 201, reducing the occurrence of pipe explosion phenomenon.

[0029] The blocking block 8 is a circular truncated cone, and the bottom of the blocking block 8 is in close contact with the pressure relief hole. The blocking block 8 is arranged in a circular truncated cone shape, which facilitates the blocking of the pressure relief hole and can reduce the impact damage of the airflow to the blocking block 8.

[0030] The top of the blocking block 8 is provided with an identification rod 9, which is used to display the liquid level in the pipeline 1 and the water flow position in the pipeline 1. Through the identification rod 9, the staff can know the size of the water flow and the position of the water flow in the pipeline 1, which is more convenient, and the size of the water flow can be used to judge the leakage point of the pipeline 1. The identification rod 9 is specifically provided with a scale or is differentiated by different colors.

[0031] The separation plate 3 is provided with a plug, which is used to change the size of the shunt cavity 201 and block the pressure relief hole. During the upward movement of the separation plate 3, the size of the shunt cavity 201 can be changed, the blocking degree of the pressure relief mechanism is controlled, and the air pressure in the shunt cavity 201 is conveniently regulated.

[0032] The blocking head comprises a blocking part 6, a deformation part 5 and a connecting part 4 from top to bottom, the two ends of the deformation part 5 are respectively connected with the blocking and connecting parts 4, the connecting part 4 is connected with the separation plate 3, and the deformation part 5 is used to change the distance between the blocking part 6 and the connecting part 4. With the increase of the liquid level, the distance between the blocking part 6 and the connecting part 4 is changed through the deformation part 5, so that the blocking part 6 blocks the pressure relief hole, when the liquid level is high, at this time the internal air is less, the probability of pipe explosion is small, at this time the pressure relief hole is closed, so as to avoid the external gas and impurities from entering the pipeline 1. In the embodiment, the deformation part 5 specifically adopts an air bag, and further comprises a liquid level meter, a controller and an air pump, wherein the air pump and the air bag are communicated, the liquid level meter and the controller are electrically connected, the controller and the air pump are electrically connected, and the controller controls the volume change of the air bag according to the data of the liquid level meter, so as to control the distance between the blocking part 6 and the connecting part 4.

[0033] The specific implementation process is as follows: initially, the pipeline 1 is full of gas or contains part of the gas, before the pipeline 1 is not injected with water, the separation plate 3 drives the connecting rod 7 and the blocking block 8 to fall under the action of its own gravity, so that the top of the blocking block 8 is below the pressure relief hole, at this time the pressure relief hole is completely opened, after the water enters the pipeline 1, the gas can be quickly discharged from the pressure relief hole, reducing the resistance to the water flow; when the water flow reaches the separation plate 3, under the action of the buoyancy of the liquid, the separation plate 3 moves upward, the separation plate 3 drives the blocking block 8 to move upward, the blocking block 8 reduces the size of the gas passing through the space in the pressure relief hole, which facilitates the gathering of the gas flow in the flow distribution cavity 201, so that the gas pressure in the flow distribution cavity 201 increases, so that the flow distribution cavity 201 forms a pressure difference with the outside, continuously discharging the gas in the flow distribution cavity 201, reducing the occurrence of the pipe explosion phenomenon. When the position of the separation plate 3 changes, the indicating rod moves with the separation plate 3, so that the staff can know the size and position of the water flow in the pipeline 1 through the indicating rod 9, which is more convenient, and the size change of the water flow can be used to judge the leakage point of the pipeline 1.

[0034] The scheme divides the gas flow in front of the water flow and discharges it from the pressure relief hole, reduces the resistance of the gas flow to the water flow, and reduces the gas resistance; and intercepts and divides the gas above the water flow, discharges the gas in the pipeline 1 in time, and avoids the pipe explosion phenomenon; the separation plate 3 is inclined to be arranged, when the water droplets are carried into the flow distribution cavity 201, the water droplets will re-enter the water flow in the pipeline 1 under the action of gravity, and as the gas pressure in the flow distribution cavity 201 increases, the water droplets and impurities will also be extruded out of the flow distribution cavity 201 and re-enter the water flow in the pipeline 1; solve the problem that the traditional exhaust valve is easy to be stuck and cannot effectively exhaust, the structure is simple and convenient to use; the staff can know the size and position of the water flow in the pipeline 1 through the indicating rod 9, which is more convenient, and the size change of the water flow can be used to judge the leakage point of the pipeline 1.

[0035] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, in the present application, unless otherwise specified and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A positive displacement water gas separator, characterized by, The utility model relates to a pipeline pressure relief device, including shell and separation plate, shell and pipeline pressure relief mouth are sealedly connected, separation plate is located at the bottom of shell, separation plate is located pipeline inner wall below, separation plate is located water flow cavity liquid level above, separation plate and shell form shunt chamber, separation plate is arranged to be inclined downward, separation plate lower end and shell form shunt air inlet, shunt air inlet is located pipeline pressure relief mouth near pipeline water inlet one end, shell is equipped with pressure relief hole, pressure relief hole installs pressure relief mechanism, The separation plate is slidably connected with the inner wall of the shell, the pressure relief mechanism includes a blocking piece and a connecting rod, the blocking piece is used for blocking the pressure relief hole, the cross-sectional area of the blocking piece gradually decreases from top to bottom, one end of the connecting rod is connected with the blocking piece, the other end of the connecting rod is connected with the separation plate, the bottom of the shell is provided with a limiting portion for limiting the separation plate from separating from the shell, and the separation plate slides on the shell with the change of the liquid level in the pipeline.

2. A positive displacement water gas separator as claimed in claim 1, wherein: The blocking piece is a circular truncated cone, and the bottom of the blocking piece is in close contact with the pressure relief hole.

3. A positive displacement water gas separator as claimed in claim 1, wherein: The top of the blocking piece is provided with an identification rod, and the identification rod is used for displaying the liquid level in the pipeline and the water flow position in the pipeline.

4. A positive displacement water gas separator as claimed in claim 1, wherein: The separation plate is provided with a plug, and the plug is used for changing the size of the shunt chamber and blocking the pressure relief hole.

5. A positive displacement water gas separator as claimed in claim 4, wherein: The plug includes a blocking portion, a deformation portion and a connecting portion from top to bottom, the deformation portion is connected with the blocking portion and the connecting portion at both ends respectively, the connecting portion is connected with the separation plate, and the deformation portion is used for changing the distance between the blocking portion and the connecting portion.

6. A positive displacement water gas separator as claimed in claim 1, wherein: The separation plate is arc-shaped at the shunt air inlet end.

7. A positive displacement water gas separator as claimed in claim 1, wherein: The thickness of the separation plate at the shunt air inlet end is less than that of the sealing connection section of the separation plate and the shell.

8. A positive displacement water gas separator as claimed in claim 1, wherein: The shell and the separation plate are detachably connected.

9. A positive displacement water gas separator as claimed in claim 1, wherein: The shell is arc-shaped at the shunt air inlet end.

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