CN216477280U - Isolated independent sand discharge and drainage natural gas desanding system - Google Patents
Isolated independent sand discharge and drainage natural gas desanding system Download PDFInfo
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- CN216477280U CN216477280U CN202123428592.1U CN202123428592U CN216477280U CN 216477280 U CN216477280 U CN 216477280U CN 202123428592 U CN202123428592 U CN 202123428592U CN 216477280 U CN216477280 U CN 216477280U
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Abstract
The utility model discloses an isolated independent sand discharge and drainage natural gas desanding system, which comprises a horizontal gravity separator, wherein a partition plate is arranged in the middle of the horizontal gravity separator and divides the horizontal gravity separator into a sand discharge cavity and a drainage cavity; a first liquid level meter is arranged in the sand discharging cavity, the first liquid level meter is electrically connected with a first liquid level controller, a sand discharging pipeline is arranged at the bottom of the sand discharging cavity, a first regulating valve is arranged on the sand discharging pipeline, and the first liquid level controller is electrically connected with the first regulating valve; and a second liquid level meter is installed in the drainage cavity, a second liquid level controller is electrically connected to the second liquid level meter, a drainage pipeline is installed at the bottom of the drainage cavity, a second regulating valve is installed on the drainage pipeline, and the second liquid level controller is electrically connected with the second regulating valve. The utility model discloses separate horizontal gravity separator for arrange sand chamber and drainage chamber to with the liquid level in two sets of liquid level control system control sand chamber and the drainage intracavity respectively, guaranteed the automatic operation of sediment outflow and drainage.
Description
Technical Field
The utility model relates to a natural gas degritting technical field especially relates to an isolated independent sand discharge water natural gas degritting system.
Background
At present, in the process of exploiting natural gas, natural gas desanding and sand discharging mainly face the following problems:
1. the process of natural gas desanding and sand discharging can not be completely automated, manual regular inspection is needed, and then gravel and water in the horizontal gravity separator are discharged.
2. The natural gas gets into behind the pipeline through the desander sand removal, and the desander separates grit and gas in to the natural gas, and the grit of separation gets into gravity separator, and the deposit can the knot hard piece if untimely clearance in the grit of gravity separator bottom to plug up the sand discharge opening, caused very big trouble for the maintenance.
3. After the natural gas is subjected to the sand removing and sand discharging processes, the water content of the natural gas is higher, the natural gas corrodes equipment in the subsequent flow, and the water content requirement of the commodity gas cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides an isolated independent sand discharge and water discharge natural gas desanding system to solve the problem among the above-mentioned prior art.
The utility model adopts the technical proposal that: the isolated independent sand discharge and water drainage natural gas desanding system comprises a horizontal gravity separator, wherein a partition plate is arranged in the middle of the horizontal gravity separator and divides the horizontal gravity separator into a sand discharge cavity and a water drainage cavity;
a first liquid level meter is installed in the sand discharge cavity, a first liquid level controller is electrically connected to the first liquid level meter, a sand discharge pipeline is installed at the bottom of the sand discharge cavity, a first regulating valve is installed on the sand discharge pipeline, and the first liquid level controller is electrically connected with the first regulating valve;
install the second level gauge in the drainage intracavity, the last electricity of second level gauge is connected with second liquid level controller, drainage chamber installs the drain line in the bottom, install the second governing valve on the drain line, second liquid level controller with the second governing valve electricity is connected.
As an optimal mode of the isolated independent sand discharge and water drainage natural gas desanding system, the system further comprises a vertical desander, and the vertical desander is installed at a first air inlet at the top of the sand discharge cavity.
As a preferable mode of the isolated independent sand-discharging and water-draining natural gas desanding system, the air outlet of the vertical desander is connected to the second air inlet of the horizontal gravity separator through a first air outlet pipeline.
The horizontal gravity separator is characterized by further comprising a baffle plate, wherein the baffle plate is fixedly installed at a second air inlet of the horizontal gravity separator, and the baffle plate guides airflow entering from the first air outlet pipeline to the end part direction of the sand discharge cavity.
As an optimal mode of the isolated independent sand-discharging and water-draining natural gas sand-removing system, the system further comprises a TP plate, wherein the TP plate is installed in the sand-discharging cavity and is installed between the baffle and the partition plate, and the bottom of the TP plate is located below the lowest liquid level controlled by the first liquid level meter and the first liquid level controller.
As a preferable mode of the isolated independent sand-discharging and water-draining natural gas desanding system, the system further comprises a wire mesh foam catcher, wherein the wire mesh foam catcher is installed at an air outlet of the horizontal gravity separator, and an air outlet of the horizontal gravity separator is positioned at the top of the water discharging cavity.
As a preferable mode of the isolated independent sand-discharging and water-draining natural gas desanding system, the system further comprises a two-phase flow meter, wherein the two-phase flow meter is arranged on an air inlet pipeline before entering the vertical desander; still install first electromagnetic flowmeter on the sand discharge pipeline, still install second electromagnetic flowmeter on the drain pipeline.
As a preferable mode of the isolated independent sand-discharging and water-draining natural gas desanding system, an automatic emptying pipeline and a manual emptying pipeline are further installed on the horizontal gravity separator, and a spring full-open type safety valve is installed on the automatic emptying pipeline.
As a preferred mode of the isolated independent sand-discharging and water-draining natural gas sand-removing system, the first liquid level meter adopts a floating ball liquid level meter, and the second liquid level meter adopts a magnetic turning plate liquid level meter.
The beneficial effects of the utility model are that:
(1) the utility model discloses separate horizontal gravity separator for arrange sand chamber and drainage chamber to with the liquid level in two sets of liquid level control system control row sand chamber and the drainage intracavity respectively, guaranteed the automatic operation of sediment outflow and drainage.
(2) The natural gas sequentially passes through a vertical desander, a horizontal gravity separator, a baffle, a TP plate and a silk screen mist eliminator to remove sand and water, so that the natural gas is thoroughly desanded, the water content in the output natural gas is very low, and the water removal cost of subsequent processes is reduced.
Drawings
Fig. 1 is the utility model discloses an isolated flow schematic diagram of independent sand discharge and drainage natural gas desanding system.
Reference numerals: 1. a vertical desander; 101. a sand discharge port of the vertical sand remover; 102. an air outlet of the vertical desander; 2. a horizontal gravity separator; 201. a first air inlet; 202. a second air inlet; 203. an air outlet of the horizontal gravity separator; 204. the end part of the sand discharge cavity; 3. a partition plate; 4. a floating ball liquid level meter; 5. a baffle plate; 6. a magnetic flap level gauge; 7. a TP plate; 8. a wire mesh mist eliminator; 9. a second level controller; 10. a first regulating valve; 11. a first electromagnetic flow meter; 12. a second regulating valve; 13. a second electromagnetic flow meter; 14. a spring full-open type safety valve; 15. a two-phase flow meter; 16. an air intake line; 17. a first vent line; 18. a first gas outlet pipeline; 19. automatically emptying the pipeline; 20. manually emptying the pipeline; 21. a second outlet pipeline; 22. a sand discharge pipeline; 23. a first bypass line; 24. a drain line; 25. a second bypass line; 26. a first liquid level controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example 1:
referring to fig. 1, the embodiment discloses an isolated independent sand discharge and water drainage natural gas desanding system, which comprises a horizontal gravity separator 2, wherein a partition plate 3 is arranged in the middle of the horizontal gravity separator 2, and the horizontal gravity separator 2 is divided into a sand discharge cavity and a water discharge cavity by the partition plate 3.
Install first level gauge, preferably in the sand discharge chamber, first level gauge adopts floater level gauge 4, first level gauge electricity is connected with first liquid level controller 26, sand discharge chamber installs sand discharge pipeline 22 in the bottom, sand discharge pipeline installs first governing valve 10 on 22, first liquid level controller 26 with first governing valve 10 electricity is connected. Install the second level gauge in the drainage intracavity, it is preferred, the second level gauge adopts magnetism to turn over board level gauge 6, be connected with second level controller 9 on the second level gauge, drainage pipeline 24 is installed to drainage chamber bottom, install second governing valve 12 on the drainage pipeline, second level controller 9 with second governing valve 12 electricity is connected. The liquid level in sand discharge cavity and drainage cavity is controlled respectively through two sets of liquid level control systems to this embodiment to realize automated control, need not personnel on duty.
The vertical sand remover 1 is also arranged on the first air inlet 201 of the horizontal gravity separator 2.
Unlike the prior art, the present embodiment connects the air outlet 102 of the vertical desander to the second air inlet 202 of the horizontal gravity separator 2 through the first air outlet pipeline 18. This allows excess water in the natural gas to be removed. Specifically, a baffle 5 is fixedly installed at the second air inlet 202 of the horizontal gravity separator 2, and the baffle 5 guides the air flow entering from the first air outlet pipeline 18 to the end 204 direction of the sand discharge cavity, so that the high-pressure air flow is prevented from directly entering the sand discharge cavity, and the purpose of removing moisture in the natural gas is not achieved sufficiently.
Specifically, still install TP board 7 in the sand discharge chamber of horizontal gravity separator 2, and TP board 7 still need install between baffle 5 and baffle 3, and in addition, TP board 7 bottom is located the minimum liquid level of first level gauge and first liquid level controller 26 control is below to make the natural gas that gets into the sand discharge chamber must pass through TP board 7. The TP board is a mature product, the TP board is a parallel board filler assembled by pressing the surface of a metal thin plate with the thickness of 0.5mm into large corrugations, and the corrugated plate sheets of the filler are punched with curved wave crests and wave troughs, so that the effects of roughly distributing liquid on the plate sheets and strengthening transverse mixing can be achieved. The TP plate packing has the characteristics of small resistance, uniform gas-liquid distribution, high efficiency, large flux, unobvious amplification effect and the like, different plate intervals are selected according to the process calculation requirement, so that when a gas-water mixture passes through, small liquid drops of a dispersion phase are condensed into large liquid masses on the surface of the packing, and when the gas-water mixture reaches a certain size, the gas-water mixture floats to the upper surface of liquid along the surface of the packing, thereby achieving the purpose of separation.
Further, a wire mesh mist eliminator 8 is further installed at the position of the air outlet 203 of the horizontal gravity separator, the air outlet 203 of the horizontal gravity separator is located at the top of the drainage cavity, and the wire mesh mist eliminator 8 can further perform gas-liquid separation on the gas-liquid mixture in the drainage cavity. So far, through this desanding system, with the natural gas in proper order through vertical desander 1, horizontal gravity separator 2, baffle 5, TP board 7, silk screen mist eliminator 8 totally five-stage desanding dewatering to make the natural gas by thorough degritting, and the water content is very low in the natural gas of output, can not lead to the fact harmful effects to follow-up technology.
Further, a two-phase flow meter 15 is installed on the air inlet pipe 16 before entering the vertical sand remover 1, so that the total flow rate is known.
The sand discharge pipeline 22 is further provided with a first electromagnetic flow meter 11, the water discharge pipeline 24 is further provided with a second electromagnetic flow meter 13, the total water discharge can be known by adding the accumulated flow on the first electromagnetic flow meter 11 and the accumulated flow on the second electromagnetic flow meter 13, and the total water discharge can be estimated after the total water discharge is known due to the fact that water needs to be discharged into a sewage disposal pool.
The horizontal gravity separator 2 of the embodiment is also provided with an automatic emptying pipeline 19 and a manual emptying pipeline 20, and the automatic emptying pipeline 19 is provided with a spring full-open type safety valve 14.
The utility model discloses a theory of operation does: the natural gas enters an air inlet pipeline 16 from a natural gas inlet, a first emptying pipeline 17 and a two-phase flow meter 15 are installed on the air inlet pipeline 16, the air inlet pipeline 16 is connected to the air inlet of the vertical desander 1, the natural gas is divided into two paths in the vertical desander 1, one path of the natural gas flows upwards through an air outlet 102 of the vertical desander and enters a first air outlet pipeline 18, and the other end of the first air outlet pipeline 18 is connected to a second air inlet 202 of the horizontal gravity separator 2; the other path of the water flows downwards through the sand outlet 101 of the vertical sand remover and the first air inlet 201 of the horizontal gravity separator 2 to enter the horizontal gravity separator 2. Because the horizontal gravity separator 2 is divided into a sand discharge cavity and a water discharge cavity by the partition plate 3, natural gas sequentially passes through the baffle plate 5, the TP plate 7 and the silk screen mist eliminator 8 and then enters the second gas outlet pipeline 21. The sand-water mixture agitates the gravel at the bottom of the horizontal gravity separator 2 through the hollow road pipe. When the liquid level in the sand discharging cavity exceeds the set highest liquid level, the first liquid level controller 26 controls the first adjusting valve 10 to be opened, the sand-water mixture is discharged through the sand discharging pipeline 22, and when the first adjusting valve 10 is damaged, the first bypass pipeline 23 connected to the sand discharging pipeline 22 can be started manually; when the liquid level in the sand discharging cavity reaches the set lowest liquid level, the first liquid level controller 26 controls the first regulating valve 10 to be closed, so that the automatic control of the liquid level in the sand discharging cavity is realized. When the liquid level in the drainage cavity exceeds the set highest liquid level, the second liquid level controller 9 controls the second regulating valve 12 to be opened, water is drained through the drainage pipeline 24, and when the second regulating valve 12 is damaged, a second bypass pipeline 25 connected to the drainage pipeline 24 can be manually started; when the liquid level in the drainage cavity reaches the set lowest liquid level, the second liquid level controller 9 controls the second regulating valve 12 to close, so that the automatic control of the liquid level in the drainage cavity is realized.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. An isolated independent sand discharge and water drainage natural gas desanding system is characterized by comprising a horizontal gravity separator, wherein a partition plate is arranged in the middle of the horizontal gravity separator and divides the horizontal gravity separator into a sand discharge cavity and a water discharge cavity;
a first liquid level meter is installed in the sand discharge cavity, a first liquid level controller is electrically connected to the first liquid level meter, a sand discharge pipeline is installed at the bottom of the sand discharge cavity, a first regulating valve is installed on the sand discharge pipeline, and the first liquid level controller is electrically connected with the first regulating valve;
install the second level gauge in the drainage intracavity, the last electricity of second level gauge is connected with second liquid level controller, drainage chamber installs the drain line in the bottom, install the second governing valve on the drain line, second liquid level controller with the second governing valve electricity is connected.
2. The isolated independent sand discharge water natural gas desanding system according to claim 1, further comprising a vertical desander mounted at the first air inlet at the top of the sand discharge chamber.
3. The isolated independent sand discharge and water discharge natural gas desanding system according to claim 2, wherein the gas outlet of the vertical desander is connected to the second gas inlet of the horizontal gravity separator through a first gas outlet pipeline.
4. The isolated independent sand discharge and water discharge natural gas desanding system according to claim 3, further comprising a baffle, wherein the baffle is fixedly installed at the second air inlet of the horizontal gravity separator, and the baffle guides the air flow entering from the first air outlet pipeline to the end direction of the sand discharge cavity.
5. The isolated independent sand discharge water natural gas desanding system according to any one of claims 2-4, further comprising a TP plate installed in the sand discharge chamber and between the baffle and the partition, wherein the bottom of the TP plate is located below the first liquid level meter and the lowest liquid level controlled by the first liquid level controller.
6. The isolated independent sand discharge and water discharge natural gas desanding system according to claim 5, further comprising a wire mesh mist eliminator mounted at the gas outlet of the horizontal gravity separator, the gas outlet of the horizontal gravity separator being located at the top of the water discharge chamber.
7. The isolated independent sand discharge and water discharge natural gas desanding system according to claim 6, further comprising a two-phase flow meter mounted on the gas inlet line before entering the vertical desander; still install first electromagnetic flowmeter on the sand discharge pipeline, still install second electromagnetic flowmeter on the drain pipeline.
8. The isolated independent sand discharge and water discharge natural gas desanding system according to claim 1, wherein an automatic emptying pipeline and a manual emptying pipeline are further mounted on the horizontal gravity separator, and a spring full-open safety valve is mounted on the automatic emptying pipeline.
9. The isolated independent sand discharge and drainage natural gas desanding system according to claim 1, wherein the first liquid level meter is a floating ball liquid level meter, and the second liquid level meter is a magnetic turning plate liquid level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123428592.1U CN216477280U (en) | 2021-12-31 | 2021-12-31 | Isolated independent sand discharge and drainage natural gas desanding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123428592.1U CN216477280U (en) | 2021-12-31 | 2021-12-31 | Isolated independent sand discharge and drainage natural gas desanding system |
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| Publication Number | Publication Date |
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| CN216477280U true CN216477280U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123428592.1U Active CN216477280U (en) | 2021-12-31 | 2021-12-31 | Isolated independent sand discharge and drainage natural gas desanding system |
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2021
- 2021-12-31 CN CN202123428592.1U patent/CN216477280U/en active Active
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