CN212250639U

CN212250639U - Injection pump for oil-water separation

Info

Publication number: CN212250639U
Application number: CN202020859943.0U
Authority: CN
Inventors: 兰云森; 肖孝强; 徐厚强; 肖世成
Original assignee: Chongqing Xingao Electrical & Mechanical Co ltd
Current assignee: Chongqing Xingao Electrical & Mechanical Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-29
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to an oil-water separation technical field, concretely relates to a jet pump for water oil separating, including the nozzle pipe, the internal thread three-way pipe, the diffuser pipe and benefit core, the nozzle pipe, the diffuser pipe is connected on the internal thread three-way pipe with the mode of mending the core through threaded connection, be equipped with hourglass hopper-shaped high pressure inlet channel in the nozzle pipe, and the nozzle pipe is interior one end of precession internal thread three-way pipe and is the toper, be equipped with the mixed runner of straight channel type and the inflation runner that leaks hopper-shaped in the diffuser pipe, the diffuser pipe is interior one end of precession internal thread three-way pipe and is the toper, this design is followed gaseous and is cut into the position, the gas-liquid mixture runner, mix the liquid and discharge the runner etc. and improve, make the speed that high-pressure draught comes in accelerate, the stirring that gets into bubble generator liquid, the shredding ability is stronger, under the same liquid drives, this design can suck more, Shredding into nanometer bubbles. And split type design, the cost is lower.

Description

Injection pump for oil-water separation

Technical Field

The utility model relates to an oil-water separation technical field, concretely relates to a jet pump for oil-water separation.

Background

Later in the field, the pressure in the natural gas production system is typically much lower than the pressure required at the pipeline or compressor inlet. The low-pressure natural gas is regarded as waste gas and is usually treated by an incineration method, so that resources are wasted and the environment is polluted. With the continuous improvement of the concepts of environmental protection and low carbon emission, the behavior is limited. The most effective way to solve these problems is to pressurize the natural gas using a jet pump.

An article published in the machinery journal of the oil field, the number of which is 100-3482(2011)08-0062-03, and the name of which is application of a jet pump in low-pressure natural gas collection and transportation, discloses a jet pump structure (also called as an ejector or a transmitter), and as shown in fig. 1, the jet pump structure has the function of increasing the pressure of a low-pressure fluid B by using a high-pressure fluid A. When the high-pressure fluid A passes through the nozzle 1, part of potential energy (pressure) is converted into kinetic energy (speed), and the flow speed is fully improved. When the low-pressure fluid B enters the low-pressure area 2, the high-pressure fluid A flowing at a high speed drives the low-pressure fluid B to enter the mixing pipe 3 for energy conversion. The mixed fluid enters the expander 4, the flow rate of the fluid is gradually reduced, and the pressure tends to be stable. The pressure of jet pump outlet mixed fluid C is intermediate between the high pressure fluid and the low pressure fluid.

However, the jet pump disclosed in the above-mentioned article has poor stirring and shredding capabilities of the liquid in the low-pressure chamber due to the narrow channel design of the high-pressure fluid inlet and the direct-flow channel design of the low-pressure fluid inlet, and finally results in that a small amount of liquid is not completely shredded into nano-sized bubbles and is removed, or the grain size of the shredded bubbles is large, and finally results in poor oil-water separation effect by the air floatation method and poor purification treatment effect of the cutting fluid. In addition, the jet pump is formed by integrally processing the inner hole flow passage by adopting the whole three-way pipe, and the processing cost of the inner hole flow passage is high and the processing technology is complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the present invention is to provide an injection pump for oil-water separation.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a jet pump for water oil separating, including nozzle pipe, internal thread three-way pipe, diffuser pipe and benefit core, nozzle pipe, diffuser pipe and benefit core are connected on the internal thread three-way pipe through threaded connection's mode, the intraductal high pressure inlet passageway that leaks hopper-shaped that is equipped with of nozzle to the intraductal one end of nozzle pipe precession internal thread three-way pipe is the toper, be equipped with the mixing channel of straight channel type and the inflation runner that leaks hopper-shaped in the diffuser pipe, the intraductal one end of diffuser pipe and diffuser pipe precession internal thread three-way pipe is the toper to the mixing channel of high pressure inlet passageway and diffuser pipe of nozzle pipe is relative, forms the low-pressure chamber at the inner chamber of internal thread three-way pipe.

Further defined, the high pressure inlet passage extends from the high pressure fluid inlet end of the nozzle tube to the end of the low pressure chamber, and the diameter of the high pressure inlet passage is gradually reduced and is funnel-shaped.

Further limiting, the aperture of the mixing flow channel is the same from top to bottom, the aperture of the mixing flow channel is larger than that of the minimum position of the high-pressure inlet channel, and the aperture of the mixing flow channel is also larger than that of the minimum position of the outer diameter of the nozzle pipe.

Further, a gap of 10mm is left between the end of the nozzle pipe and the end of the diffusion pipe in the low-pressure cavity.

Further limiting, the inner wire three-way pipe is a right-angle three-way pipe, the nozzle pipe and the diffusion pipe are screwed on the inner wire three-way pipe in a straight line, and the supplement core is vertically screwed on a third pipe orifice of the inner wire three-way pipe and used for adjusting the pipe diameter of the third pipe orifice of the inner wire three-way pipe.

Further limiting, when the nozzle pipe, the internal thread three-way pipe, the diffusion pipe and the supplement core are assembled, sealant is coated at an assembly threaded opening of the nozzle pipe, the internal thread three-way pipe, the diffusion pipe and the supplement core.

Further defined, the mixing channel has a length longer than the expansion channel.

Further defined, the length dimension of the mixing flow channel is 180mm, and the length dimension of the expansion flow channel is 81 mm.

Compared with the prior art, the utility model beneficial effect be: this design improves on the basis of original jet pump, improves from aspects such as gas cut-in position, gas-liquid mixture runner, mixed liquid discharge runner, widens the high-pressure inlet channel of nozzle pipe, becomes to leak hopper-shaped for the speed that high-pressure draught came in is accelerated, still lengthens the mixed runner of diffusion tube, makes the stirring of the liquid that gets into bubble generator, shredding ability stronger. Therefore, finally, under the drive of the same liquid, the design can suck more air quantity, and can stir and shred the sucked air into nano-scale bubbles within tens of milliseconds.

On the other hand, the design changes the existing integrated jet pump into an assembled type, and four parts of a nozzle pipe, an internal thread three-way pipe, a diffusion pipe and a supplement core are respectively processed, so that the process is simple, particularly, the internal flow passage inner hole is easier to process, and the overall processing cost is reduced.

Drawings

FIG. 1 is a schematic diagram of a prior art jet pump in full section;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

fig. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic diagram of oil-water separation.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments.

The injection pump for oil-water separation shown in fig. 2 and 3 comprises a nozzle pipe 5, an internal thread three-way pipe 6, a diffusion pipe 7 and a supplement core 8, wherein the nozzle pipe 5, the diffusion pipe 7 and the supplement core 8 are connected to the internal thread three-way pipe 6 in a threaded connection mode, the internal thread three-way pipe 6 is a right-angle three-way pipe, the nozzle pipe 5 and the diffusion pipe 7 are screwed to the internal thread three-way pipe 6 in a straight line, and the supplement core 8 is vertically screwed to a third pipe orifice of the internal thread three-way pipe 6 and used for adjusting the pipe diameter of the third pipe orifice of the internal thread three-way pipe 6. When the nozzle pipe 5, the internal thread three-way pipe 6, the diffusion pipe 7 and the bushing 8 are assembled, sealant is coated at an assembly threaded opening of the nozzle pipe, and thread locking glue cannot be used. The internal thread three-way pipe 6 can adopt a standard part, replaces a machining part mixing section, has lower manufacturing cost and improves the assembly flexibility.

Compared with the design of fig. 2, in the prior art of fig. 1, the slow flow region at the nozzle 1 and the flaring at the right end in the mixing pipe 3 are eliminated, a funnel-shaped high-pressure inlet channel 50 is arranged in the nozzle pipe 5, one end of the nozzle pipe 5 screwed into the internal thread three-way pipe 6 is tapered, a straight channel type mixing channel 70 and a funnel-shaped expansion channel 71 are arranged in the diffusion pipe 7, one ends of the diffusion pipe 7 and the diffusion pipe 7 screwed into the internal thread three-way pipe 6 are tapered, the high-pressure inlet channel 50 of the nozzle pipe 5 and the mixing channel 70 of the diffusion pipe 7 are opposite, and a low-pressure cavity 60 is formed in the inner cavity 6 of the internal thread three-way pipe. The design redesigns the shape of the high pressure inlet channel 50, the shape and length of the mixing channel 70, and the shape and length of the expansion channel 71 according to the flow principle, so that the energy exchange is faster and more sufficient when the high pressure fluid and the low pressure fluid are mixed.

Preferably, the high pressure inlet passage 50 extends from the high pressure fluid inlet end of the nozzle tube 5 to the end of the low pressure chamber (i.e., from right to left as viewed in fig. 2), and has a decreasing diameter and a funnel shape. Like this high-pressure fluid flows from the mouth of pipe to the slot, and the speed that gets into the low-pressure chamber is faster, and when low-pressure fluid got into from the three-way pipe mouth department of mending 6 positions department, it was also accelerated to flow the speed from the mouth of pipe to the slot, and the impact force when high-pressure fluid and low-pressure fluid amalgamate was bigger like this, can fully react, carries out the energy exchange fast, with higher speed with inspiratory air stirring, shredding into nanometer bubble.

Preferably, the aperture of the mixing channel 70 is the same from top to bottom, and the aperture of the mixing channel 70 is larger than the aperture of the minimum position of the high pressure inlet channel 50, and the aperture of the mixing channel 70 is also larger than the diameter of the minimum position of the outer diameter of the nozzle pipe 5.

Preferably, a gap of 10mm is left between the end of the nozzle pipe 5 and the end of the diffuser pipe 7 in the low pressure chamber 60.

The length of the mixing flow channel 70 is longer than that of the expansion flow channel, the length of the mixing flow channel 70 is 180mm, and the length of the expansion flow channel is 81 mm. Compared with the prior art, the length of the mixing flow channel 70 is increased, the reaction time is prolonged, the oil-water separation is more thorough, and the purification treatment effect of the cutting fluid is better.

As shown in fig. 4, when the jet pump for oil-water separation is used for oil-water separation, a large amount of air can be converted into countless nano-scale bubbles in a very short time, and the air is flushed into the bottom of the oil-water separator liquid tank 9 and is emitted upwards, and meanwhile, micro-particle miscellaneous oil in the cutting liquid is adsorbed and taken out of the liquid level, so that on one hand, oil-water separation is realized, and on the other hand, the cutting liquid is oxygenated to promote the purification treatment of the cutting liquid. Because the particle diameter is less and quantity is many, can cover the whole liquid region of cutting fluid completely for liquid in the liquid case forms "boiling" state, and the microbubble is along with cutting fluid circulation "roll" in-process, can carry out the secondary to miscellaneous oil again and adsorb and take over, thereby realizes fabulous oil-water separation effect.

It is right above the utility model provides an injection pump for water oil separating has carried out the detailed introduction. The description of the specific embodiments is only for the purpose of helping understanding the method of the present invention and the core idea thereof, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A jet pump for water oil separating, its characterized in that: including nozzle tube, internal thread three-way pipe, diffuser pipe and benefit core, nozzle tube, diffuser pipe and benefit core are connected on the internal thread three-way pipe through threaded connection's mode, the intraductal high pressure inlet passageway that leaks hopper-shaped that is equipped with of nozzle to the intraductal one end of nozzle tube precession internal thread three-way is the toper, be equipped with the mixing channel of straight channel type and the inflation runner that leaks hopper-shaped in the diffuser pipe, the intraductal one end of diffuser pipe and diffuser pipe precession internal thread three-way is the toper to the high pressure inlet passageway of nozzle tube is relative with the mixing channel of diffuser pipe, forms the low-pressure chamber at the inner chamber of internal thread three-way pipe.

2. The jet pump for oil-water separation according to claim 1, characterized in that: the high-pressure inlet channel extends from the end of the high-pressure fluid inlet end of the nozzle pipe to the end of the low-pressure cavity, the diameter of the high-pressure inlet channel is gradually reduced, and the high-pressure inlet channel is funnel-shaped.

3. The jet pump for oil-water separation according to claim 2, characterized in that: the aperture of the mixing flow channel is the same from top to bottom, the aperture of the mixing flow channel is larger than that of the minimum position of the high-pressure inlet channel, and the aperture of the mixing flow channel is also larger than that of the minimum position of the outer diameter of the nozzle pipe.

4. The jet pump for oil-water separation according to claim 1, characterized in that: in the low pressure cavity, a gap of 10mm is left between the end of the nozzle pipe and the end of the diffusion pipe.

5. The jet pump for oil-water separation according to claim 1, characterized in that: the inner wire three-way pipe is a right-angle three-way pipe, the nozzle pipe and the diffusion pipe are screwed on the inner wire three-way pipe in a straight line, and the complementary core is vertically screwed on a third pipe orifice of the inner wire three-way pipe and is used for adjusting the pipe diameter of the third pipe orifice of the inner wire three-way pipe.

6. The jet pump for oil-water separation according to claim 5, characterized in that: when the nozzle pipe, the internal thread three-way pipe, the diffusion pipe and the bushing are assembled, sealant is coated at an assembly threaded opening of the nozzle pipe, the internal thread three-way pipe, the diffusion pipe and the bushing.

7. The jet pump for oil-water separation according to claim 3, characterized in that: the length of the mixing flow passage is longer than that of the expansion flow passage.

8. The jet pump for oil-water separation according to claim 7, characterized in that: the length of the mixing flow channel is 180mm, and the length of the expansion flow channel is 81 mm.