CN217961597U - Cleaning device for drain valve of oil-gas field separator - Google Patents

Abstract

The utility model provides a cleaning device for oil gas field separator trap, the barrel includes the entry of being connected with separator discharge line exit end, delivery port with trap entrance connection and the sand outlet of being connected with storage sand tank entry end, entry and sand outlet are located the both ends that the barrel is relative, be equipped with the filter screen in the barrel, the filter screen both ends respectively with the entrance with be close to the interior wall connection of sand outlet one end, the one end that is close to sand outlet on the filter screen is the blind end, thereby separate into sand setting chamber and filter chamber with the barrel, the delivery port is located the lateral part of barrel and communicates with the filter chamber. The utility model relates to a cleaning device, in solid, the liquid in the separator flow to the trap barrel under gravity during the use, the solid is intercepted by the filter screen and stays in the filter screen, and the liquid after the filtration gets into the trap barrel and realizes automatic flowing back, and the flow that adopts artifical emission discharges the solid in the filter screen, realizes that two passageways of solid and liquid discharge, effectively eliminates because of the problem that damages sealed face behind the impurity entering trap.

Description

Cleaning device for drain valve of oil-gas field separator

Technical Field

The utility model relates to a petroleum and petrochemical industry system fortune shape technical field, concretely relates to a cleaning device for oil gas field separator trap.

Background

The gravity separator is a solid-liquid separator widely used in a station, and is used for separating liquid and solid in natural gas to obtain qualified natural gas. The principle is that the flow rate of the natural gas coming out from the well bottom is reduced after the natural gas enters the separator, because the density of liquid and solid is far greater than that of the natural gas, the liquid and the solid with high density can be deposited in a liquid accumulation bag below a separator cylinder body according to the gravity principle to be stored. After a certain amount of liquid and solid are collected, a drain valve is manually opened according to the liquid level, and the liquid is discharged into the storage tank by utilizing the pressure difference between the inside and the outside of the cylinder.

In order to improve the automatic management capability, reduce the manual emission frequency and reduce the manual emission risk. The trap valve with automatic sewage discharge is mounted on a part of separators in a matched mode, accumulated liquid and solid impurities in a liquid accumulation bag of the separators are drained into a trap valve cylinder through a pipeline, a floating ball is mounted in the cylinder, when a certain amount of accumulated liquid in the cylinder is collected, the floating ball floats upwards by utilizing a buoyancy principle to drive a valve core on a connecting rod to move upwards, the valve core leaves a valve seat, and liquid in the cylinder is discharged into a storage tank through the pipeline under the action of pressure difference. In situ, formation water contains partial impurities, and particularly, a large amount of impurities comprise ceramsite sand for fracturing. When the trap is used for automatic pollution discharge, under the condition of high-speed flow, impurities easily puncture sealing surfaces of a valve seat and a valve core or deposited fracturing sand is arranged on the sealing surfaces of the valve seat and the valve core after accumulated liquid discharge is completed, sealing failure can be caused, sealing is not tight, natural gas in a separator leaks through a discharge channel of the trap under the pressure difference to cause natural gas waste, and therefore the risks of environmental pollution, flammability and explosiveness are caused. To eliminate leakage, the trap seal needs to be frequently checked and repaired.

At present, when the drain valve is used, a filter is installed on the drain valve to filter impurities in liquid, the impurities need to be checked and cleaned regularly, no filter equipment is provided, solid impurities in the liquid can be intercepted, and the filtered liquid can enter the drain valve to be collected without disassembling the equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art not enough, a cleaning device for oil gas field separator trap is provided, solid in the separator during use, liquid flows to in the trap barrel under gravity, the solid is installed the filter screen interception in the barrel and is stayed in the filter screen, liquid after the filtration gets into the trap barrel, realize automatic flowing back, the flow that adopts artifical emission discharges the solid entering storage tank in the filter screen, realize that two passageways of solid and liquid discharge, effectively eliminate because of the problem of damage sealed face behind the impurity entering trap.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a cleaning device for oil gas field separator trap, the novel nipple rectifier comprises a cylindrical shel, wherein, the barrel includes the entry of being connected with separator discharge line exit end, delivery port with trap entrance connection and the sand outlet of being connected with storage sand jar entry end, entry and sand outlet are located the both ends that the barrel is relative, be equipped with the filter screen in the barrel, the filter screen both ends respectively with the entrance with be close to the interior wall connection of sand outlet one end, the one end that is close to sand outlet on the filter screen is the blind end, thereby separate into sand setting chamber and filter chamber with the barrel, the delivery port is located the lateral part of barrel and communicates with the filter chamber.

According to the utility model discloses a cleaning device for oil gas field separator trap, the entry at barrel both ends, the delivery port of sand outlet and lateral part forms the tee bend of a similar "T" shape structure, the trap during operation, liquid gets into in the pipeline reachs the trap barrel through the filter screen under the action of gravity, the case that floater in the water valve barrel drove on the connecting rod under buoyancy shifts up, case and disk seat passageway are opened, realize automatic flowing back under the pressure difference in the water valve barrel, solid impurity is under the interception of filter screen, the gathering is at the filter screen inner wall, adopt artifical manual flowing back mode with solid impurity in discharging the storage sand jar from the pipeline that the sand outlet is connected, effectively eliminate because of the problem of impurity gets into the sealed face of damage behind the trap, and do not influence the normal work of trap, still be favorable to discharging the solid particle in the setting sand intracavity.

With respect to the above technical solution, further improvements as described below can be made.

According to the utility model discloses a cleaning device for oil gas field separator trap, in a preferred embodiment, the filter screen adopts the toper frame to fix on the inner wall of barrel.

Through the fixed filter screen of conical frame, ensure that the shape of filter screen does not change and fixed filter screen separates into the sand setting chamber in the barrel and filters by force, can form the toper filter screen structure, take little advance and go out, when carrying out artifical manual emission, solid particle can not the direct impact filter screen, but can move along filter screen inner wall surface, drive the solid particle who remains on the filter screen, play the effect of clearance filter screen, behind the interception solid particle, solid particle stays in the sand setting intracavity of filter screen inner wall, because the filter screen sectional area of toper structure is greater than the pipeline sectional area far away, be difficult to block up the filter screen.

Specifically, the filter screen is fixed on the conical frame through bonding or welding, and the fixed mode is that the conical frame filters inwards outside, and the combination forms a conical filter element that has the support, and when the liquid that contains solid particle passes through the conical filter element, liquid passes through the conical filter element smoothly, and solid particle is intercepted on the filter element, and after intercepting solid particle, solid particle stays in the sand setting intracavity of filter screen inner wall, plays the effect of filtering liquid.

Specifically, in a preferred embodiment, the conical shelf is made of steel with a taper of 1 to 1:5.

Above-mentioned structural style toper frame can guarantee to a great extent to the fixed of filter screen and support reliable and stable.

Further, in a preferred embodiment, a sealing part is arranged between one end of the filter screen close to the sand outlet and the inner wall of the cylinder body.

Through setting up sealed part, can effectively guarantee the sealed effect of blind end, effectively avoid solid particle to get into influences the filter effect in the filter chamber.

Further, in a preferred embodiment, a swirl tube is provided at the inlet.

The drain valve drainage effect can not be influenced when the cyclone tube is used, and only when manual draining is adopted, the cyclone tube can guide liquid to flow in the tangential direction when the liquid flows, so that solid particles intercepted on the filter screen are driven, and the sand discharging effect is improved.

Further, in a preferred embodiment, the swirl tube comprises a seamless tube and more than two sets of helical blades arranged on the inner wall of the seamless tube.

When flowing liquid and natural gas pass through the rotational flow pipeline, the flow velocity is increased, and under the guidance of the plurality of helical blades, the liquid and the natural gas can rotate and flow in the filter screen supported by the conical frame to drive solid particle flow intercepted on the filter screen, and then the solid particle flow enters the storage tank along with the discharged liquid, so that the aim of cleaning impurities can be achieved without dismounting the device.

Further, in a preferred embodiment, the diameters of the two ends of the cylinder body are respectively consistent with the diameter of the outlet end of the discharge pipeline of the separator and the diameter of the pipeline connected with the inlet end of the sand storage tank, the diameter of the middle part of the cylinder body is larger than the diameters of the two ends of the cylinder body, and the two ends of the cylinder body are in transition connection with the middle part of the cylinder body in a gradually expanding arc structure.

The cylinder body adopts a structure with two sections of small outer diameters and a large middle diameter, so that the diameters of the filter screen inlet and the sand outlet are consistent with the diameter of the connecting pipeline, the filter element is prevented from being damaged due to pipeline reducing or flow velocity, the interception area of the filter screen entering the drain valve is increased, and the volume of solid impurities remained on the inner surface of the filter element is increased. And can satisfy the installation of barrel, conical frame, can form enough space filter chamber, sand setting chamber in the barrel again.

In particular, in a preferred embodiment, the middle of the barrel is of cylindrical configuration.

The cylinder body with the cylindrical structure is easy to process and manufacture and convenient to install and arrange.

Specifically, in a preferred embodiment, the screen is an 80-300 mesh screen.

The filter screen of above-mentioned structural style can satisfy the clearance demand of oil gas field separator trap to a great extent.

Further, in a preferred embodiment, the inlet, the water outlet and the sand outlet are provided with mounting flanges.

Through the entry at above-mentioned "tee bend" structure, set up mounting flange on delivery port and the sand outlet, can improve the convenience of whole cleaning device's installation maintenance and operation to a great extent.

Compared with the prior art, the utility model has the advantages of: during the use in solid, the liquid in the separator flow to the trap barrel under gravity, the solid is installed the filter screen interception in the barrel and is stayed in the filter screen, and the liquid after the filtration gets into the trap barrel, realizes automatic flowing back, and the flow that adopts artifical emission discharges and gets into the storage tank solid in the filter screen, realizes two passageways of solid and liquid and discharges, effectively eliminates because of the problem that sealed face is damaged after impurity gets into the trap.

Drawings

The present invention will be described in more detail hereinafter based on embodiments and with reference to the accompanying drawings. Wherein:

FIG. 1 schematically illustrates the mounting structure of a cleaning apparatus 10 for an oil and gas field separator trap in accordance with an embodiment of the present invention;

fig. 2 schematically shows the overall structure of a cleaning device 10 for an oil and gas field separator trap in accordance with an embodiment of the present invention.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples, without thereby limiting the scope of the invention.

Fig. 1 schematically shows a mounting arrangement for a cleaning device 10 for an oil and gas field separator trap in accordance with an embodiment of the present invention. Fig. 2 schematically shows the overall structure of a cleaning device 10 for an oil and gas field separator trap in accordance with an embodiment of the present invention.

As shown in fig. 1 and 2, the utility model discloses a cleaning device 10 for oil gas field separator trap, including barrel 1, wherein, barrel 1 includes the entry 11 of being connected with separator 100 discharge line exit end, delivery port 12 with trap 200 entrance connection and the sand outlet 13 of being connected with sand storage tank 300 entry end, entry 11 and sand outlet 13 are located the both ends that barrel 1 is relative, be equipped with filter screen 2 in barrel 1, filter screen 2 both ends respectively with entry 11 department with be close to the interior wall connection of sand outlet 13 one end, the one end that is close to sand outlet 13 on the filter screen 2 is the blind end, thereby separate into sand setting chamber 14 and filter chamber 15 with barrel 1, delivery port 12 is located the lateral part of barrel 1 and is close to the position of middle part and communicates with filter chamber 15. Preferably, the water outlet 12 is arranged in a vertically downward direction.

According to the utility model discloses a cleaning device for oil gas field separator trap, the entry at barrel both ends, the delivery port of sand outlet and lateral part forms the tee bend of a similar "T" shape structure, the trap during operation, liquid gets into in the pipeline reachs the trap barrel through the filter screen under the action of gravity, the case that the floater in the trap barrel drove on the connecting rod under buoyancy shifts up, case and disk seat passageway are opened, realize automatic flowing back under the pressure difference in the trap barrel, solid impurity is under the interception of filter screen, the gathering is at the filter screen inner wall, adopt artifical manual flowing back mode with solid impurity from the pipeline discharge to the sand storage jar that sand outlet is connected, effectively eliminate because of the problem of impurity gets into the sealed face of damage behind the trap, and do not influence the normal work of trap, still do benefit to the solid particle of discharge in the sand setting intracavity.

Specifically, in the present embodiment, the screen 2 is a screen of 80 to 300 meshes. The filter screen with the structure can meet the cleaning requirement of the drain valve of the oil-gas field separator to a great extent. Further, in this embodiment, the inlet 11, the water outlet 12 and the sand outlet 13 are all provided with mounting flanges 4. Through the entry at above-mentioned "tee bend" structure, set up mounting flange on delivery port and the sand outlet, can improve the convenience of whole cleaning device's installation maintenance and operation to a great extent.

Further, in the present embodiment, as shown in fig. 2, the screen 2 is fixed to the inner wall of the cylinder 1 using a conical frame 3. Through the fixed filter screen of toper frame, it separates into the sand setting chamber and filters by force in the barrel with fixed filter screen not to ensure that the shape of filter screen changes, can form toper filter screen structure, take little advance and go out, when carrying out artifical manual emission, solid particle can not the direct impact filter screen, can be on the contrary along filter screen inner wall surface displacement, drive the solid particle who remains on the filter screen, play the effect of clearance filter screen, behind the interception solid particle, solid particle stays in the sand setting intracavity of filter screen inner wall, because the filter screen sectional area of toper structure is greater than the pipeline sectional area far away, be difficult to block up the filter screen. Specifically, the filter screen 2 is fixed on the conical frame 3 in a bonding or welding mode, the conical frame 3 is arranged inside the outer filter screen 2 and combined to form a conical filter element with a support, when liquid containing solid particles passes through the conical filter element, the liquid smoothly passes through the conical filter element, the solid particles are intercepted on the filter element, and after the solid particles are intercepted, the solid particles are left in a sand setting cavity on the inner wall of the filter screen to play a role in filtering the liquid. Specifically, in this embodiment, the conical shelf 3 is made of steel with a taper of 1. Above-mentioned structural style toper frame can guarantee to a great extent to the fixed of filter screen and support reliable and stable.

As shown in fig. 2, in the present embodiment, a sealing member 5 is disposed between one end of the screen 2 close to the sand outlet 13 and the inner wall of the cylinder 2. Specifically, 3 entry ends of the conical frame are welded on the cyclone tube 6, the exit end adopts a bonding sealing rubber strip, and the sealing effect of the closed end can be effectively guaranteed by arranging a sealing part, so that the solid particles are effectively prevented from entering the filter cavity to influence the filtering effect.

Further, as shown in fig. 2, in the present embodiment, a swirl tube 6 is provided at the inlet 11. The drain valve drainage effect can not be influenced when the cyclone tube is used, and only when manual draining is adopted, the cyclone tube can guide liquid to flow in the tangential direction when the liquid flows, so that solid particles intercepted on the filter screen are driven, and the sand discharging effect is improved. Further, in the present embodiment, the swirl tube 6 includes a seamless tube and two or more sets of spiral blades arranged on the inner wall of the seamless tube. The spiral-flow tube 6 adopts the seamless tube inner wall on welded multichannel helical blade and 3 entry connections of toper frame, its internal diameter slightly is less than the inlet pipeline internal diameter, and when liquid and the natural gas that flow passed through the whirl pipeline, the velocity of flow increased, and under the guide of multichannel helical blade, liquid and natural gas can be at the filter screen internal rotation that the toper frame supported and flow, drive the solid particle stream of interception on the filter screen, and in the liquid entering storage tank along with the emission, reach the purpose that does not need dismounting device just can clear up impurity.

Further, in this embodiment, the diameters of the two ends of the cylinder 1 are respectively consistent with the diameter of the outlet end of the discharge pipeline of the separator 100 and the diameter of the pipeline connected with the inlet end of the sand storage tank 300, the diameter of the middle part of the cylinder 1 is larger than the diameters of the two ends of the cylinder 1, and the two ends of the cylinder 1 are in transition connection with the middle part of the cylinder 1 by adopting a gradually expanding arc structure. The cylinder body adopts a structure with two sections of small outer diameters and a large middle diameter, so that the diameters of the filter screen inlet and the sand outlet are consistent with the diameter of the connecting pipeline, the filter element is prevented from being damaged due to pipeline reducing or flow velocity, the interception area of the filter screen entering the drain valve is increased, and the volume of solid impurities remained on the inner surface of the filter element is increased. And can satisfy the installation of barrel, conical frame, can form enough space filter chamber, sand setting chamber in the barrel again. Specifically, in a preferred embodiment, the middle of the barrel is of a cylindrical structure. The cylinder body with the cylindrical structure is easy to process and manufacture and convenient to install and arrange.

According to the above-mentioned embodiment, it is visible, the utility model relates to a cleaning device for oil gas field separator trap, solid in the separator during use, liquid flow direction under gravity in the trap barrel, the solid is installed in the filter screen interception of barrel and is stayed in the filter screen, liquid after the filtration gets into the trap barrel, realize automatic flowing back, the flow that adopts artifical emission discharges the solid entering storage tank in the filter screen, realize that two passageways of solid and liquid discharge, effectively eliminate because of the problem of impurity damage sealed face behind the entering trap.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A cleaning device for a drain valve of an oil-gas field separator is characterized by comprising a cylinder body; wherein the content of the first and second substances,

the cylinder comprises an inlet connected with the outlet end of a discharge pipeline of the separator, a water outlet connected with the inlet end of the drain valve and a sand outlet connected with the inlet end of the sand storage tank;

the inlet and the sand outlet are positioned at two opposite ends of the cylinder body;

a filter screen is arranged in the cylinder body, two ends of the filter screen are respectively connected with the inlet and the inner wall close to one end of the sand outlet, and one end of the filter screen close to the sand outlet is a closed end, so that the cylinder body is divided into a sand settling cavity and a filter cavity;

the water outlet is positioned on the side part of the cylinder body and communicated with the filtering cavity.

2. The cleaning device for the trap of an oil and gas field separator as claimed in claim 1, wherein the strainer is fixed on the inner wall of the cylinder using a conical frame.

3. The cleaning device for the trap of the oil-gas field separator according to claim 2, wherein the conical frame is made of steel with the taper of 1 to 1:5.

4. The cleaning device for the oil and gas field separator drain valve according to any one of claims 1 to 3, wherein a sealing member is provided between one end of the screen close to the sand outlet and the inner wall of the cylinder.

5. Cleaning device for oil and gas field separator traps according to any of claims 1 to 3, characterized in that said inlet is provided with a swirl tube.

6. The cleaning device for oil and gas field separator trap of claim 5, wherein said cyclone tube comprises a seamless tube and more than two sets of helical blades arranged on the inner wall of said seamless tube.

7. The cleaning device for the oil-gas field separator drain valve according to any one of claims 1 to 3, characterized in that the diameters of the two ends of the cylinder are respectively consistent with the diameter of the outlet end of the separator discharge pipeline and the diameter of the pipeline connected with the inlet end of the sand storage tank, the diameter of the middle part of the cylinder is larger than the diameters of the two ends of the cylinder, and the two ends of the cylinder and the middle part of the cylinder are in transition connection by adopting a gradually expanding arc structure.

8. The cleaning device for an oil and gas field separator trap as claimed in claim 7, wherein the middle portion of the cylinder is of cylindrical configuration.

9. The cleaning device for the oil and gas field separator drain valve according to any one of claims 1 to 3, characterized in that the screen is 80-300 mesh.

10. The cleaning device for an oil and gas field separator trap as claimed in any one of claims 1 to 3, wherein the inlet, the water outlet and the sand outlet are provided with mounting flanges.

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