CN210287248U

CN210287248U - Improved supersonic speed natural gas dehydration and dealkylation separator

Info

Publication number: CN210287248U
Application number: CN201920797306.2U
Authority: CN
Inventors: 刘新哲
Original assignee: 刘新哲; 詹露茜
Current assignee: JINYI CHUANGDIAN (TIANJIN) TECHNOLOGY Co.,Ltd.
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-10
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses an improve supersonic speed natural gas dehydration and dealkylation separator, include: natural gas line, the edulcoration case, the filter screen, the valve, the sewage pipes, the connecting pipe, condensing equipment, first venlafel pipe, second venlafel pipe, third venlafel pipe, the diffuser pipe, cyclone, the fluid-discharge tube, the flowing back house steward, hydrocarbon water separator, the velocity of flow regulating plate, first dry gas passageway, gas control valve, second dry gas passageway and gas collection device, have the advantages such as small investment, high efficiency, the energy consumption is low, pollution-free, small, whole process does not use any chemical raw materials promptly pollution-free simultaneously, and dehydration efficiency is high, environmental protection and energy saving's purpose has been reached, better comdenstion water and the velocity of flow of the natural gas after controlling the purification, the fine natural gas after the purification of while is collected.

Description

Improved supersonic speed natural gas dehydration and dealkylation separator

Technical Field

The utility model belongs to the technical field of the natural gas is handled, concretely relates to improve supersonic speed natural gas dehydration and dealkylation separator.

Background

As is well known, the demand of natural gas is increasing, the improvement of the production and processing technology of natural gas is also greatly demanded, and natural gas is not pure when being mined from the underground, and contains various hydrocarbons, moisture, sand and stone particles and the like. If the natural gas is not processed before being delivered to the transportation pipeline, the transportation equipment is greatly damaged.

The current chinese patent application number is: CN201710468051.0 is a self-injection circulating reflux supersonic cyclone separator and a separation method thereof, belonging to the technical field of supersonic condensation separation devices. According to the method, a backflow pipe structure is additionally arranged at the centers of a liquid discharge cavity and a flow guide cone, and moisture-containing gas is injected into a backflow pipe by self-injection by utilizing the pressure difference of the moisture-containing gas at the outlet of the liquid discharge cavity and the flow guide cone to form external backflow circulation. The backflow gas can promote the condensation process in the diffusion section of the Laval pipe, can realize secondary cyclone separation, reduce the flow of fluid entering the pressure recovery section, and improve the separation efficiency of the supersonic separator and the adaptability to the gas flow. The guide cone with the return flow channel has two types of tangential openings and non-tangential openings, and can be respectively suitable for high-pressure systems and low-pressure systems. The invention can be widely applied to the fields of dehydration, hydrocarbon removal and the like of gas containing water and hydrocarbon such as natural gas, coal bed gas, shale gas, dense gas and the like. However, no improved supersonic natural gas dehydration and dealkylation separator has been proposed.

In addition, the Chinese patent application numbers are: CN201520956252.1 discloses a supersonic speed natural gas dehydration and dealkylation separator, including natural gas line, the edulcoration case, the filter screen, sewage pipes, the valve, the return bend, first LAVAL pipe, the diffuser pipe, the swirler, the fluid-discharge tube, the flowing back house steward, hydrocarbon water separator, guide plate and dry gas passageway, natural gas line is connected with the edulcoration case, be equipped with vertical filter screen in the edulcoration incasement, impurity removal bottom of the case end connection sewage pipes, be equipped with the valve on the sewage pipes, edulcoration case side portion upwards sets up the return bend, the return bend exit end is connected first LAVAL pipe, first LAVAL pipe connection diffuser pipe, the diffuser pipe front end sets up the swirler, the bottom of swirler rear portion sets up the fluid-discharge tube, the fluid-discharge tube is connected the flowing back house steward, the flowing back house steward is connected hydrocarbon water separator, the rear. Has the advantages of low investment, high efficiency, low energy consumption, no pollution, small volume and the like, and has good environmental protection effect. But again does not suggest an improved supersonic natural gas dehydration and de-hydrocarbon separator.

SUMMERY OF THE UTILITY MODEL

To the blank and the defect that prior art exists, the utility model provides an improve supersonic speed natural gas dehydration and dealkylation separator.

The separator, comprising: the system comprises a natural gas pipeline, an impurity removal box, a filter screen, a valve, a sewage discharge pipeline, a connecting pipe, a condensing device, a first Laval pipe, a second Laval pipe, a third Laval pipe, a diffuser pipe, a cyclone separator, a liquid discharge pipe, a liquid discharge main pipe, a hydrocarbon-water separator, a flow velocity adjusting plate, a first dry gas channel, a gas adjusting valve, a second dry gas channel and a gas collecting device; the natural gas pipeline is connected with the connecting pipe through the impurity removing box, a filter screen is arranged in the impurity removing box, the bottom of the impurity removing box is connected with a sewage discharge pipeline, and a valve is arranged on the sewage discharge pipeline; the outlet of the connecting pipe, the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe are sequentially connected; the front end of the diffuser pipe is provided with a cyclone separator, the bottom end of the rear part of the cyclone separator is provided with a liquid discharge pipe, the liquid discharge pipe is connected with a liquid discharge main pipe, and the liquid discharge main pipe is connected with a hydrocarbon-water separator; the rear end of the liquid discharge pipe is provided with flow velocity adjusting plates, and each flow velocity adjusting plate is provided with holes with different sizes; the rear end of the flow velocity adjusting plate is connected with a first dry gas channel, the first dry gas channel is connected with a second dry gas channel through a gas adjusting valve, and the second dry gas channel is connected with a gas collecting device; condensing devices are arranged outside the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe.

Furthermore, the condensing device consists of a shell, a spiral pipeline, an external pipeline, a water inlet pump, a water outlet pump and a cooling water pool;

a spiral pipeline is laid in the shell and sequentially wound outside the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe; the front end of the spiral pipeline is sequentially connected with the water inlet pump and the cooling water tank through external pipelines, and the rear end of the spiral pipeline is sequentially connected with the water outlet pump and the cooling water tank through external pipelines.

Further, the gas regulating valve includes: a cushion seat and an adjusting rod;

the cushion seat is provided with a first cavity and a second cavity, the openings of the first cavity and the second cavity are different, the first cavity is connected with the first dry gas channel, and the second cavity is connected with the second dry gas channel; the adjustment rod passes through the area between the first cavity and the second cavity.

Furthermore, the end part of the adjusting rod is provided with a screwing pipe with a circular section, and the outer surface of the screwing pipe is of a continuous wave-shaped structure.

Furthermore, liquid discharge pipes are arranged at the connecting positions of the outlet of the connecting pipe, the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe which are sequentially connected in sequence.

Furthermore, a groove is formed in the pipe wall at the rear end of the cyclone separator.

The beneficial effects of separator are:

the separator not only has the advantages of less investment, high efficiency, low energy consumption, no pollution and small volume, but also can conveniently adjust the gas flow rate and effectively collect the gas into the gas collecting device by arranging the gas adjusting valve. Meanwhile, the natural gas can be well cooled and the redundant moisture can be condensed by arranging the condensing device; holes with different sizes are formed in different flow velocity adjusting plates, so that the effect of reducing the influence of vortex formed by a swirler on purified natural gas can be realized; the whole process is pollution-free without using any chemical raw materials, and the dehydration efficiency is high, thereby achieving the purposes of environmental protection and energy saving.

The separator utilizes a three-section Laval pipe to better expand and cool the natural gas until the water and heavy hydrocarbon in the natural gas are condensed, and then utilizes a swirler to centrifuge the condensed water and heavy hydrocarbon to the surface of the pipe wall of the diffuser pipe and remove the condensed water and heavy hydrocarbon through a liquid discharge pipe; the edulcoration case that sets up can be with the solid impurity composition desorption in advance in the natural gas, prevents to block the pipeline.

Drawings

Fig. 1 is a schematic view of the overall structure of the separator of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of the wave structure of the separator twisting tube in a top view.

The labels in the figures show: 1-natural gas pipeline, 2-impurity removal tank, 3-filter screen, 4-blow-off pipe, 5-valve, 6-connecting pipe, 7-condensing device, 8-first Laval pipe, 9-second Laval pipe, 10-third Laval pipe, 11-diffuser pipe, 12-cyclone separator, 13-groove, 14-flow rate adjusting plate, 15-first dry gas channel, 16-second dry gas channel, 17-gas adjusting valve, 18-liquid discharge pipe, 19-liquid discharge main pipe, 20-hydrocarbon water separator, 21-gas collecting device, 71-water inlet pump, 72-water outlet pump, 73-cooling water tank, 74-external pipeline, 171-twist pipe, 172-adjusting rod, 173-second cavity, 174-first leather pad, 175-second leather pad, 176-first cavity, 177-wave structure.

Detailed Description

The following description will further describe a specific embodiment of the separator according to the present invention with reference to the accompanying drawings.

As shown in fig. 1-3, the separator includes: the system comprises a natural gas pipeline 1, an impurity removing box 2, a filter screen 3, a valve 5, a sewage discharge pipeline 4, a connecting pipe 6, a condensing device 7, a first Laval pipe 8, a second Laval pipe 9, a third Laval pipe 10, a diffuser pipe 11, a cyclone separator 12, a liquid discharge pipe 18, a liquid discharge header pipe 19, a hydrocarbon-water separator 20, a flow rate adjusting plate 14, a first dry gas channel 15, a gas adjusting valve 17, a second dry gas channel 16 and a gas collecting device 21; the natural gas pipeline 1 is connected with a connecting pipe 6 through an impurity removing box 2, a filter screen 3 is arranged in the impurity removing box 2, the bottom of the impurity removing box 2 is connected with a sewage discharge pipeline 4, and a valve 5 is arranged on the sewage discharge pipeline 4; impurities are removed before the natural gas enters the Laval tube, so that the Laval tube is prevented from being blocked by the impurities. An outlet of the connecting pipe 6, a first Laval pipe 8, a second Laval pipe 9, a third Laval pipe 10 and a diffuser pipe 11 are sequentially connected; the purpose of arranging a plurality of groups of the Laval pipes is to enable the natural gas to be subjected to compression and expansion processes, so that moisture is condensed and heavy hydrocarbon is better separated out. The front end of the diffuser pipe 11 is provided with a cyclone separator 12, the bottom end of the rear part of the cyclone separator 12 is provided with a liquid discharge pipe 18, the liquid discharge pipe 18 is connected with a liquid discharge main pipe 19, and the liquid discharge main pipe 19 is connected with a hydrocarbon-water separator 20; flow rate adjusting plates 14 are arranged at the rear ends of the liquid discharge pipes 18, and holes (not numbered in the figure) with different sizes are arranged on each flow rate adjusting plate 14; the purpose of arranging the different large and small holes is to reduce the influence of the vortex formed by the cyclone on the purified natural gas. The rear end of the flow velocity adjusting plate 14 is connected with a first dry gas channel 15, the first dry gas channel 15 is connected with a second dry gas channel 16 through a gas adjusting valve 17, and the second dry gas channel 16 is connected with a gas collecting device 21; the condensing device 7 is arranged outside the first, second, third and

diffusion pipes

8, 9, 10 and 11.

Further, as shown in fig. 1, the condensing device 7 is composed of a housing (not numbered in the figure), a spiral pipeline (not numbered in the figure), an external pipeline 74, a water inlet pump 71, a water outlet pump 72, and a cooling water tank 73;

a spiral pipeline is laid in the shell and sequentially wound outside the first Laval pipe 8, the second Laval pipe 9, the third Laval pipe 10 and the diffuser pipe 11; the front end of the spiral pipeline is sequentially connected with the water inlet pump 71 and the cooling water tank 73 through the external pipeline 74, and the rear end of the spiral pipeline is sequentially connected with the water outlet pump 72 and the cooling water tank 73 through the external pipeline 74.

Further, as shown in fig. 2, the gas regulating valve 17 includes: a pad (not numbered), an adjustment lever 172;

the cushion seat is provided with a first cavity 176 and a second cavity 173 with different openings, the first cavity 176 is connected with the first dry gas channel 15, and the second cavity 173 is connected with the second dry gas channel 16; the adjustment rod 172 passes through the area between the first cavity 176 and the second cavity 173; the adjustment lever 172 is fixed between the first cavity 176 and the second cavity 173 by the first leather pad 174 and the second leather pad 175.

Further, as shown in fig. 2 and 3, the end of the adjustment rod 172 has a screwing tube 171 with a circular cross section, and the outer surface of the screwing tube 171 is in a continuous wave-shaped structure 177.

Further, as shown in fig. 1, a drain pipe 18 is provided at a connection point where the outlet of the connection pipe 6, the first and second

laval pipes

8 and 9, the third laval pipe 10, and the diffuser pipe 11 are sequentially connected in this order.

Further, as shown in fig. 1, a groove 13 is provided on the pipe wall at the rear end of the cyclone separator 12, so that the water and hydrocarbons which are swirled on the pipe wall by the cyclone separator 12 can be collected in the groove 13 and further enter the liquid discharge pipe 10, so that the water and hydrocarbons are guided to the hydrocarbon-water separator 12 for further separation treatment.

The present invention is not limited to the above embodiments, and any variations, modifications, and substitutions that may occur to those skilled in the art may be made without departing from the spirit of the present invention.

Claims

1. An improved supersonic natural gas dehydration and de-hydrocarbon separator, comprising: the system comprises a natural gas pipeline, an impurity removal box, a filter screen, a valve, a sewage discharge pipeline, a connecting pipe, a condensing device, a first Laval pipe, a second Laval pipe, a third Laval pipe, a diffuser pipe, a cyclone separator, a liquid discharge pipe, a liquid discharge main pipe, a hydrocarbon-water separator, a flow velocity adjusting plate, a first dry gas channel, a gas adjusting valve, a second dry gas channel and a gas collecting device; the natural gas pipeline is connected with the connecting pipe through the impurity removing box, a filter screen is arranged in the impurity removing box, the bottom of the impurity removing box is connected with a sewage discharge pipeline, and a valve is arranged on the sewage discharge pipeline; the outlet of the connecting pipe, the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe are sequentially connected; the front end of the diffuser pipe is provided with a cyclone separator, the bottom end of the rear part of the cyclone separator is provided with a liquid discharge pipe, the liquid discharge pipe is connected with a liquid discharge main pipe, and the liquid discharge main pipe is connected with a hydrocarbon-water separator; the rear end of the liquid discharge pipe is provided with flow velocity adjusting plates, and each flow velocity adjusting plate is provided with holes with different sizes; the rear end of the flow velocity adjusting plate is connected with a first dry gas channel, the first dry gas channel is connected with a second dry gas channel through a gas adjusting valve, and the second dry gas channel is connected with a gas collecting device; condensing devices are arranged outside the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe.

2. The improved supersonic natural gas dehydration and hydrocarbon removal separator of claim 1, wherein said condensing means is comprised of a housing, a spiral conduit, an external conduit, a water intake pump, a water outlet pump, a water cooling basin;

the spiral pipeline is laid in the shell and sequentially wound outside the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe; the spiral pipeline front end is connected with the water inlet pump and the cooling water tank in sequence through external pipelines, and the spiral pipeline rear end is connected with the water outlet pump and the cooling water tank in sequence through external pipelines.

3. The improved supersonic natural gas dehydration and hydrocarbon removal separator of claim 1, wherein said gas regulating valve comprises: a cushion seat and an adjusting rod;

the cushion seat is provided with a first cavity and a second cavity, the openings of the first cavity and the second cavity are different, the first cavity is connected with the first dry gas channel, and the second cavity is connected with the second dry gas channel; the adjustment rod passes through a region between the first cavity and the second cavity.

4. The improved supersonic natural gas dehydration and hydrocarbon removal separator of claim 3, wherein said adjusting rod end has a screwing tube with a circular cross section, and the outer surface of said screwing tube has a continuous wave structure.

5. The improved supersonic natural gas dehydration and hydrocarbon removal separator according to claim 1, wherein a drain pipe is arranged at the connection position where the connecting pipe outlet, the first Laval pipe, the second Laval pipe, the third Laval pipe and the diffuser pipe are sequentially connected in sequence.

6. The improved supersonic natural gas dehydration and dealkylation separator of claim 5, wherein said cyclone separator back end tube wall is provided with a groove.