A high pressure jet pump

Abstract

The present invention belongs to the technical field of jet pumps, and specifically is a high-pressure jet pump, comprising a body, a nozzle and a mixing chamber. In the prior art, when the jet pump is working in an oil well, due to the influence of the working environment, there are impurities in the oil well and it is relatively viscous. When the jet pump is working, the impurities in the transported liquid are accumulated in the water inlet pipe, so that the water inlet pipe cannot be kept unobstructed, and the impurities are stuck in the body. The transported liquid is sucked through the water inlet pipe, and the transported liquid is input into the suction pipe. Through the action of the sieve plate, large impurities in the transported liquid are effectively screened out. By providing a toggle plate, the toggle plate is driven to rotate during the flow of the transported liquid, so that the toggle plate stirs and dilutes the transported liquid, and the toggle plate drives the impurities screened out on the sieve plate to rotate. When the toggle plate rotates, the cutting blade can pass through the groove to cut and crush the screened impurities, so that the impurities can pass through the sieve plate, thereby entering the body, and then discharged from the mixing chamber.

Description

Technical Field

[0001] The invention belongs to the technical field of jet pumps, in particular to a high-pressure jet pump. Background Art

[0002] A jet pump is a fluid power pump. A fluid power pump has no mechanical transmission or mechanical working components. It uses the energy of another working fluid as a power source to transport low-energy liquids. It has good safety when used to pump flammable and explosive materials. A jet vacuum pump is a device that uses a high-speed jet through a nozzle to remove gas from a container to obtain a vacuum. It is also called a jet vacuum pump. In chemical production, the purpose is often to create a vacuum.

[0003] For example, a Chinese patent with application number CN201710992385.8 discloses a hydraulic jet pump, including a pump core, a pump barrel, a nozzle, a guide seat and a spiral. The spiral is arranged in the first elastic tube of the pump core so that the spiral is fixed in the pump core. When the high-pressure fluid flows into the first elastic tube from the second through hole at the top of the pump core and contacts the spiral surface of the spiral, the high-pressure fluid is accelerated by the spiral and then ejected from the first elastic tube from the nozzle to eject a swirling jet stream. Since the surface turbulence of the swirling jet stream is stronger than the surface turbulence of the linear turbulent jet stream, the swirling jet stream has a stronger liquid carrying capacity. The swirling jet stream is mixed with the formation fluid flowing into the liquid inlet channel opened at the bottom of the pump core, so that more formation fluid is carried by the high-pressure fluid and flows out from the liquid outlet channel opened at the bottom of the pump core, and finally flows out of the pump through the third through hole on the wall of the pump barrel, thereby enhancing the liquid carrying effect of the pump.

[0004] However, in this technical solution, when the jet pump is working in an oil well, due to the influence of the working environment, there are impurities in the oil well and it is relatively viscous. When the jet pump is working, the impurities in the transported liquid accumulate in the water inlet pipe, making it impossible to keep the water inlet pipe unobstructed, causing the impurities to get stuck in the device body, thereby reducing the working efficiency of the jet pump. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a high-pressure jet pump, which inputs the transported liquid into a straw and, through the action of a sieve plate, effectively screens out large impurities in the transported liquid, so that impurities in the transported liquid entering the body are not stuck inside the body, thereby maintaining the working efficiency of the jet pump; through a support rod provided on the sieve plate, a toggle plate connected to the support rod by a bearing is driven to rotate during the flow of the transported liquid, so that the toggle plate stirs and dilutes the transported liquid, and the toggle plate drives the impurities screened out on the sieve plate to rotate, and through a cutting blade provided on the water inlet pipe, when the toggle plate rotates, the cutting blade can pass through the groove to cut and crush the screened impurities, so that the impurities can pass through the sieve plate.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a high-pressure jet pump described in the present invention comprises a body, a nozzle and a mixing chamber; a suction pipe is fixedly connected to the top of the body, a No. 1 sealing ring is provided on the top of the suction pipe, and a water inlet pipe is provided on the top of the No. 1 sealing ring; a positioning groove is provided at the bottom of the water inlet pipe and the top of the suction pipe; a sieve plate is fixedly connected to the bottom of the inner wall of the water inlet pipe, and a circular hole is provided on the sieve plate; a support rod is fixedly connected to the middle of the top of the sieve plate, a bearing is fixedly connected to the support rod, the bearing is sealed, and a group of toggle plates are fixedly connected to the outer surface of the bearing, the toggle plates are inclined, and the toggle plates are located above the sieve plates; a group of grooves are provided on the toggle plate in the direction away from the support rod, and the top and bottom of the grooves are parallel to the sieve plate; a group of cutting blades are provided at the corresponding positions of the water inlet pipe and the grooves, so that when the toggle plate rotates, the cutting blades pass through the grooves;

[0007] In the prior art, when the jet pump works in the oil well, due to the influence of the working environment, the oil well contains impurities and is relatively viscous. When the jet pump works, the impurities in the transported liquid accumulate in the water inlet pipe, making the water inlet pipe unobstructed, causing the impurities to get stuck in the body, thereby reducing the working efficiency of the jet pump.

[0008] Therefore, the present invention sprays the working fluid into the mixing chamber from the nozzle at a very high speed, forms a low pressure in the device body, and causes the transported liquid to be sucked into the device body through the straw, and then enters the mixing chamber, where the high-energy working fluid and the low-energy transported liquid are fully mixed, so that the energy is exchanged with each other to achieve the purpose of transporting the liquid; the transported liquid is sucked into the water inlet pipe, the No. 1 sealing ring plays a sealing role, the positioning groove positions the No. 1 sealing ring to ensure the sealing of the No. 1 sealing ring, and the transported liquid enters the straw. Through the action of the sieve plate, impurities in the transported liquid are effectively screened out, and the transported liquid enters the device body from the circular small hole, so that the impurities in the transported liquid entering the device body are not stuck inside the device body; through the support rod provided on the sieve plate, the support rod is passed through The toggle plate connected by the bearing drives the toggle plate to rotate during the flow of the transported liquid, so that the toggle plate stirs and dilutes the transported liquid, and the toggle plate drives the impurities screened out on the sieve plate to rotate. Through the cutting blade arranged on the water inlet pipe, when the toggle plate rotates, the cutting blade can pass through the groove, and the top and bottom of the groove are parallel to the sieve plate, reducing the gap between the grooves. The cutting blade cuts and crushes the screened impurities, so that the impurities can pass through the sieve plate and enter the device body, and then be discharged from the mixing chamber. When the jet pump is working, it can extract impurities in the working environment, so that impurities in the transported liquid are not accumulated in the water inlet pipe, so that the water inlet pipe remains unobstructed, and the impurities are crushed so that the impurities are not stuck in the device body, thereby maintaining the working efficiency of the jet pump.

[0009] Preferably, an exhaust pipe is fixedly connected to the water inlet pipe, and the exhaust pipe is bent, with one end of the exhaust pipe extending out of the water inlet pipe and the other end extending to the top of the support rod with a gap left; by rotating the toggle plate, bubbles in the transported liquid are gathered toward the direction of the support rod under the action of centrifugal force, and the bubbles are discharged from the exhaust pipe to the outside of the water inlet pipe through the exhaust pipe provided at the top of the support rod, thereby reducing the gas entering the device body, and the one-way valve allows the gas to be discharged only to the outside of the water inlet pipe, so that the vacuum degree in the device body remains stable, thereby maintaining the working efficiency of the jet pump.

[0010] Preferably, the water inlet pipe is provided with a buckle; the straw is fixedly connected with a slot block; the buckle is flipped to disengage from the slot block, so that the water inlet pipe is separated from the straw; when there are too many impurities in the water inlet pipe and cannot enter the device body from the sieve plate, the buckle is loosened from the slot block by squeezing the No. 1 sealing ring between the water inlet pipe and the straw, and the buckle is flipped, so that the water inlet pipe is separated from the straw, which makes it more convenient for the staff to clean the inside of the water inlet pipe. After cleaning, the water inlet pipe is installed on the straw. Since the No. 1 sealing ring between the water inlet pipe and the straw is made of elastic material, the No. 1 sealing ring between the water inlet pipe and the straw is squeezed, the buckle is flipped, and the buckle is fixed to the slot block, so that the sealing between the water inlet pipe and the straw is better, so that the water inlet efficiency of the water inlet pipe will not be affected by the blockage at the sieve plate, thereby increasing the working efficiency of the jet pump.

[0011] Preferably, the nozzle is made of rubber, and an elastic tube is fixedly connected to the nozzle neck, and the elastic tube has a triangular cross-section; when the pressure of the working fluid increases, the port of the nozzle expands due to the increased pressure of the working fluid, so that the speed of the working fluid entering the body is reduced, the pressure is increased, and the pressure inside the body is reduced due to the sudden increase in the pressure of the working fluid, thereby keeping the vacuum inside the body stable; when the pressure of the working fluid decreases, the port of the nozzle contracts due to the reduced pressure of the working fluid, so that the speed of the working fluid entering the body is increased, the pressure is reduced, and the pressure inside the body is reduced due to the sudden decrease in the pressure of the working fluid. The elastic tube arranged on the neck of the nozzle is affected by the working fluid, thereby keeping the vacuum degree inside the device body stable; when the pressure of the working fluid increases, the elastic tube is squeezed and enlarged by the working fluid, and the cross-sectional area of ​​the elastic tube is increased, thereby reducing the pressure of the working fluid inside the nozzle and reducing the working fluid flow rate inside the nozzle; when the pressure of the working fluid decreases, the elastic tube shrinks, reducing the cross-sectional area of ​​the elastic tube, increasing the pressure of the working fluid inside the nozzle, and increasing the working fluid flow rate inside the nozzle, thereby achieving the function of stabilizing the flow and pressure of the nozzle, keeping the pressure inside the device body stable, making the vacuum degree inside the device body stable, and maintaining the working efficiency of the jet pump.

[0012] Preferably, a flow valve and a No. 1 threaded block are provided on the mixing chamber, a drain pipe is provided in the mixing chamber in the direction opposite to the device body, the mixing chamber and the drain pipe are connected by threads, and a No. 2 sealing ring is provided between the mixing chamber and the drain pipe; a No. 2 threaded block is fixedly connected to the drain pipe, and the No. 2 threaded block and the No. 1 threaded block are connected by bolts; after the jet pump has been working for a period of time, some impurities accumulated inside the device body and on the sieve plate are not easy to be discharged from the mixing chamber, and by closing the flow valve, the working fluid sprayed from the nozzle cleans the impurities inside the device body and inlet pipe, and the impurities are discharged from the inlet pipe to the outside, thereby cleaning the jet pump. Clean and maintain the working efficiency of the jet pump; when the jet pump works for a long time, the drain pipe will be worn under the impact of the working fluid and the transported liquid. By rotating the bolt, the bolt is rotated out of the No. 2 thread block, and then the drain pipe is rotated to separate the drain pipe from the mixing chamber, and the No. 2 sealing ring plays a sealing role; by tightening the new drain pipe through the thread, and then screwing the bolt from the No. 1 thread block into the No. 2 thread block, the bolt is tightened, so that when the jet pump vibrates during operation, the drain pipe will not fall off from the mixing chamber due to vibration, making the replacement of the drain pipe more convenient and increasing the work efficiency of the maintenance personnel.

[0013] Preferably, a group of conical baffle rings are fixedly connected to the inner wall of the end of the body, and the conical surface of the conical baffle rings faces the center of the body; through the conical baffle rings arranged inside the body, the flow direction of the inside of the body is guided when the transported liquid enters the body, thereby reducing the energy loss caused by the forward collision of the transported liquid with the inner wall of the body, thereby increasing the working efficiency of the jet pump; and impurities in the transported liquid will not remain in the corners of the body when entering the body, making it difficult to clean the inside of the body, thereby making it more convenient for maintenance personnel to clean the body and increasing the work efficiency of maintenance personnel.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The high-pressure jet pump described in the present invention sucks in the conveyed liquid through the water inlet pipe, inputs the conveyed liquid into the suction tube, and effectively screens out large impurities in the conveyed liquid through the action of the sieve plate; a toggle plate is provided, which drives the toggle plate to rotate during the flow of the conveyed liquid, so that the toggle plate stirs and dilutes the conveyed liquid, and drives the toggle plate to rotate the impurities screened out on the sieve plate. When the toggle plate rotates, the cutting blade can pass through the groove to cut and crush the screened impurities, so that the impurities can pass through the sieve plate, thereby entering the device body and then being discharged from the mixing chamber.

[0016] 2. The high-pressure jet pump described in the present invention, through the rotation of the toggle plate, causes the bubbles in the transported liquid to gather toward the direction of the support rod under the action of centrifugal force, and through the exhaust pipe provided on the top of the support rod, the bubbles are discharged from the exhaust pipe to the outside of the water inlet pipe, thereby reducing the gas entering the body, keeping the vacuum degree in the body stable, and maintaining the working efficiency of the jet pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a stereogram of the present invention;

[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0020] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0021] Figure 4 is a three-dimensional diagram of the connection between the mixing chamber component and the drain pipe component of the present invention;

[0022] In the figure: body 1, nozzle 11, mixing chamber 12, straw 13, No. 1 sealing ring 14, water inlet pipe 15, sieve plate 16, support rod 17, bearing 18, toggle plate 19, groove 110, cutting piece 111, circular hole 112, positioning groove 113, exhaust pipe 2, one-way valve 21, buckle 3, slot block 31, elastic tube 4, flow valve 5, No. 1 thread block 51, drain pipe 52, No. 2 sealing ring 53, No. 2 thread block 54, bolt 55, conical retaining ring 6. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4As shown, a high-pressure jet pump according to the present invention comprises a body 1, a nozzle 11 and a mixing chamber 12; a suction pipe 13 is fixedly connected to the top of the body 1, a No. 1 sealing ring 14 is provided on the top of the suction pipe 13, and a water inlet pipe 15 is provided on the top of the No. 1 sealing ring 14; a positioning groove 113 is provided at the bottom of the water inlet pipe 15 and the top of the suction pipe 13; a sieve plate 16 is fixedly connected to the bottom of the inner wall of the water inlet pipe 15, and a circular small hole 112 is provided on the sieve plate 16; a support rod 17 is fixedly connected to the middle of the top of the sieve plate 16, and a circular small hole 112 is provided on the support rod 17 A bearing 18 is fixedly connected, and the bearing 18 is sealed. A group of toggle plates 19 are fixedly connected to the outer surface of the bearing 18. The toggle plates 19 are tilted and located above the screen plate 16. The toggle plates 19 are provided with a group of grooves 110 in the direction away from the support rod 17. The top and bottom of the grooves 110 are parallel to the screen plate 16. The water inlet pipe 15 is provided with a group of cutting blades 111 at a position corresponding to the grooves 110 horizontally, so that when the toggle plates 19 rotate, the cutting blades 111 pass through the grooves 110.

[0025] In the prior art, when the jet pump works in the oil well, due to the influence of the working environment, the oil well contains impurities and is relatively viscous. When the jet pump works, the impurities in the transported liquid accumulate in the water inlet pipe 15, so that the water inlet pipe 15 cannot be kept unobstructed, and the impurities are stuck in the body 1, which reduces the working efficiency of the jet pump.

[0026] Therefore, the present invention sprays the working fluid into the mixing chamber 12 from the nozzle 11 at a very high speed, forms a low pressure in the body 1, and causes the transported liquid to be sucked into the body 1 from the suction pipe 13, and then enters the mixing chamber 12, where the high-energy working fluid and the low-energy transported liquid are fully mixed, so that the energy is exchanged with each other to achieve the purpose of transporting the liquid; the transported liquid is sucked into the water inlet pipe 15, the No. 1 sealing ring 14 plays a sealing role, the positioning groove 113 positions the No. 1 sealing ring 14 to ensure the sealing of the No. 1 sealing ring 14, and the transported liquid enters the suction pipe 13. Through the action of the sieve plate 16, impurities in the transported liquid are effectively screened out, and the transported liquid enters the body 1 from the circular small hole 112, so that the impurities in the transported liquid entering the body 1 are not stuck inside the body 1; through the support rod 17 provided on the sieve plate 16, the support rod 17 is passed through the bearing The toggle plate 19 connected to 18 drives the toggle plate 19 to rotate during the flow of the transported liquid, so that the toggle plate 19 stirs and dilutes the transported liquid, and the toggle plate 19 drives the impurities screened out on the sieve plate 16 to rotate. Through the cutting blade 111 arranged on the water inlet pipe 15, when the toggle plate 19 rotates, the cutting blade 111 can pass through the groove 110. The top and bottom of the groove 110 are parallel to the sieve plate 16, reducing the gap of the groove 110. The cutting blade 111 cuts and crushes the screened impurities, so that the impurities can pass through the sieve plate 16 and enter the device body 1, and then be discharged from the mixing chamber 12. When the jet pump is working, it can extract impurities in the working environment, so that impurities in the transported liquid are not accumulated in the water inlet pipe 15, so that the water inlet pipe 15 remains unobstructed, and the impurities are crushed so that the impurities are not stuck in the device body 1, thereby maintaining the working efficiency of the jet pump.

[0027] As an embodiment of the present invention, an exhaust pipe 2 is fixedly connected to the water inlet pipe 15, and the exhaust pipe 2 is bent. One end of the exhaust pipe 2 extends out of the water inlet pipe 15, and the other end of the exhaust pipe 2 extends to the top of the support rod 17 with a gap. A one-way valve 21 is provided on one end of the exhaust pipe 2 outside the water inlet pipe 15. By rotating the toggle plate 19, the bubbles in the transported liquid are gathered toward the direction of the support rod 17 under the action of centrifugal force, and the bubbles are discharged from the exhaust pipe 2 to the outside of the water inlet pipe 15 through the exhaust pipe 2 provided on the top of the support rod 17, thereby reducing the gas entering the device body 1. The one-way valve 21 allows the gas to be discharged only to the outside of the water inlet pipe 15, so that the vacuum degree in the device body 1 remains stable, thereby maintaining the working efficiency of the jet pump.

[0028] As an embodiment of the present invention, the water inlet pipe 15 is provided with a buckle 3; the straw 13 is fixedly connected with a slot block 31; the buckle 3 is flipped to disengage from the slot block 31, so that the water inlet pipe 15 is separated from the straw 13; when there are too many impurities in the water inlet pipe 15 and they cannot enter the body 1 from the sieve plate 16, the buckle 3 is loosened from the slot block 31 by squeezing the water inlet pipe 15 toward the No. 1 sealing ring 14 between the straw 13, and the buckle 3 is flipped, so that the water inlet pipe 15 is separated from the straw 13, and the staff The cleaning of the inside of the water inlet pipe 15 is more convenient. After the cleaning is completed, the water inlet pipe 15 is installed on the suction pipe 13. Since the No. 1 sealing ring 14 between the water inlet pipe 15 and the suction pipe 13 is made of elastic material, by squeezing the water inlet pipe 15 toward the No. 1 sealing ring 14 between the water inlet pipe 15 and the suction pipe 13, the buckle 3 is turned over and fixed on the card slot block 31, so that the sealing between the water inlet pipe 15 and the suction pipe 13 is better, so that the jet pump will not be affected by the blockage of the screen plate 16. The water intake efficiency of the water inlet pipe 15 is increased, and the working efficiency of the jet pump is increased.

[0029] As an embodiment of the present invention, the nozzle 11 is made of rubber, and an elastic tube 4 is fixedly connected to the neck of the nozzle 11, and the cross-section of the elastic tube 4 is triangular; when the pressure of the working fluid increases, the port of the nozzle 11 expands due to the increased pressure of the working fluid, so that the speed of the working fluid entering the body 1 is reduced, the pressure is increased, and the pressure inside the body 1 is reduced due to the sudden increase in the pressure of the working fluid, thereby maintaining the vacuum degree inside the body 1 stable; when the pressure of the working fluid decreases, the port of the nozzle 11 contracts due to the reduced pressure of the working fluid, so that the speed of the working fluid entering the body 1 is increased, the pressure is reduced, and the pressure inside the body 1 is reduced due to the sudden increase in the pressure of the working fluid. The influence of the nozzle 1 is reduced, so that the vacuum degree inside the device body 1 is kept stable; through the elastic tube 4 arranged on the neck of the nozzle 11, when the pressure of the working fluid increases, the elastic tube 4 is squeezed and enlarged by the working fluid, and the cross-sectional area of ​​the elastic tube 4 is increased, thereby reducing the pressure of the working fluid inside the nozzle 11 and reducing the flow rate of the working fluid inside the nozzle 11; when the pressure of the working fluid decreases, the elastic tube 4 shrinks, reducing the cross-sectional area of ​​the elastic tube 4, increasing the pressure of the working fluid inside the nozzle 11, and increasing the flow rate of the working fluid inside the nozzle 11, thereby achieving the effect of stabilizing the flow and pressure of the nozzle 11, so that the pressure inside the device body 1 is kept stable, the vacuum degree inside the device body 1 is stable, and the working efficiency of the jet pump is maintained.

[0030] As an embodiment of the present invention, a flow valve 5 and a No. 1 threaded block 51 are provided on the mixing chamber 12, a drain pipe 52 is provided on the mixing chamber 12 in the direction opposite to the body 1, the mixing chamber 12 and the drain pipe 52 are connected by threads, and a No. 2 sealing ring 53 is provided between the mixing chamber 12 and the drain pipe 52; a No. 2 threaded block 54 is fixedly connected to the drain pipe 52, and the No. 2 threaded block 54 and the No. 1 threaded block 51 are connected by bolts 55; after the jet pump has been working for a period of time, some impurities accumulated inside the body 1 and on the sieve plate 16 are not easy to be discharged from the mixing chamber 12, and by closing the flow valve 5, the working fluid sprayed from the nozzle 11 cleans the impurities inside the body 1 and in the water inlet pipe 15, so that the impurities are discharged from the water inlet pipe 15 to the outside, Thereby, the jet pump is cleaned and the working efficiency of the jet pump is maintained; when the jet pump works for a long time, the drain pipe 52 is worn under the impact of the working fluid and the transported liquid. By rotating the bolt 55, the bolt 55 is rotated out of the No. 2 threaded block 54, and then the drain pipe 52 is rotated to separate the drain pipe 52 from the mixing chamber 12, and the No. 2 sealing ring 53 plays a sealing role; by tightening the new drain pipe 52 through the thread, and then screwing the bolt 55 from the No. 1 threaded block 51 into the No. 2 threaded block 54, the bolt 55 is tightened, so that when the jet pump vibrates during operation, the drain pipe 52 will not fall off from the mixing chamber 12 due to the vibration, making the replacement of the drain pipe 52 more convenient and increasing the work efficiency of the maintenance personnel.

[0031] As an embodiment of the present invention, a group of conical baffle rings 6 are fixedly connected to the inner wall of the end of the body 1, and the conical surface of the conical baffle ring 6 faces the center of the body 1; through the conical baffle ring 6 arranged inside the body 1, when the transported liquid enters the body 1, the flow direction inside the body 1 is guided, thereby reducing the energy loss caused by the forward collision of the transported liquid with the inner wall of the body 1, thereby increasing the working efficiency of the jet pump; and when the impurities in the transported liquid enter the body 1, they will not remain in the corners of the body 1, making it difficult to clean the inside of the body 1, making it more convenient for maintenance personnel to clean the body 1, thereby increasing the working efficiency of the maintenance personnel.

[0032] The specific workflow is as follows:

[0033] By spraying the working fluid into the mixing chamber 12 from the nozzle 11 at a very high speed, a low pressure is formed in the body 1, so that the transported liquid is sucked into the body 1 from the suction pipe 13, and then enters the mixing chamber 12, where the high-energy working fluid and the low-energy transported liquid are fully mixed, so that the energy is exchanged with each other to achieve the purpose of transporting the liquid; the transported liquid is sucked into the water inlet pipe 15, so that the transported liquid enters the suction pipe 13, and the impurities in the transported liquid are effectively screened out by the action of the sieve plate 16; the toggle plate 19 is driven to rotate during the flow of the transported liquid, so that the toggle plate 19 stirs and dilutes the transported liquid, and the toggle plate 19 drives the impurities screened on the sieve plate 16 to rotate, and the impurities are removed by the cutting blade 111 provided on the water inlet pipe 15. The cutting blade 111 cuts and crushes the screened impurities so that the impurities can pass through the sieve plate 16 and enter the device body 1, and then be discharged from the mixing chamber 12; by rotating the toggle plate 19, the bubbles in the transported liquid are gathered in the direction of the support rod 17 under the action of centrifugal force, and the bubbles are discharged from the exhaust pipe 2 to the outside of the water inlet pipe 15 through the exhaust pipe 2 provided on the top of the support rod 17, thereby reducing the gas entering the device body 1, and the one-way valve 21 allows the gas to be discharged only to the outside of the water inlet pipe 15; when there are too many impurities in the water inlet pipe 15 and they cannot enter the device body 1 from the sieve plate 16, the buckle 3 is loosened from the card slot block 31 by squeezing the water inlet pipe 15 toward the No. 1 sealing ring 14 between the water inlet pipe 15 and the straw 13, and the buckle 3 is flipped over, so that the water inlet pipe 15 is detached from the straw 13, and it is more convenient for the staff to clean the inside of the water inlet pipe 15. After cleaning, the water inlet pipe 15 is installed on the straw 13. Since the No. 1 sealing ring 14 between the water inlet pipe 15 and the straw 13 is made of elastic material, by squeezing the water inlet pipe 15 toward the No. 1 sealing ring 14 between the straw 13, flipping the buckle 3, and fixing the buckle 3 on the slot block 31, the sealing between the water inlet pipe 15 and the straw 13 is better; when the pressure of the working fluid increases, the port of the nozzle 11 expands due to the increase in the pressure of the working fluid, so that the speed of the working fluid entering the device body 1 is reduced, the pressure is increased, and the influence of the sudden increase in the pressure of the working fluid on the pressure inside the device body 1 is reduced, so that the vacuum degree inside the device body 1 remains stable; when When the pressure of the working fluid decreases, the port of the nozzle 11 contracts due to the decrease in the pressure of the working fluid, so that the speed of the working fluid entering the body 1 increases, the pressure decreases, and the influence of the sudden decrease in the pressure of the working fluid on the pressure inside the body 1 is reduced, so that the vacuum degree inside the body 1 remains stable; the elastic tube 4 arranged at the neck of the nozzle 11, when the pressure of the working fluid increases, the elastic tube 4 is squeezed and enlarged by the working fluid, and the cross-sectional area of ​​the elastic tube 4 is increased, thereby reducing the pressure of the working fluid inside the nozzle 11 and reducing the flow rate of the working fluid inside the nozzle 11; when the pressure of the working fluid decreases, the elastic tube 4 shrinks, reducing the cross-sectional area of ​​the elastic tube 4, increasing the pressure of the working fluid inside the nozzle 11 and increasing the flow rate of the working fluid inside the nozzle 11;By closing the flow valve 5, the working fluid sprayed from the nozzle 11 cleans the impurities inside the body 1 and the water inlet pipe 15, so that the impurities are discharged from the water inlet pipe 15 to the outside; when the jet pump works for a long time, the drain pipe 52 is worn under the impact of the working fluid and the conveyed liquid. By rotating the bolt 55, the bolt 55 is rotated out of the second thread block 54, and then the drain pipe 52 is rotated to separate the drain pipe 52 from the mixing chamber 12; by tightening the new drain pipe 52 through the thread, the bolt 55 is screwed from the first thread block 51 into the second thread block 54, and the bolt 55 is tightened. ;

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-pressure jet pump, characterized in that: The invention comprises a body (1), a nozzle (11) and a mixing chamber (12); a suction pipe (13) is fixedly connected to the top of the body (1), a No. 1 sealing ring (14) is provided on the top of the suction pipe (13), and a water inlet pipe (15) is provided on the top of the No. 1 sealing ring (14); a positioning groove (113) is provided at the bottom of the water inlet pipe (15) and the top of the suction pipe (13); a sieve plate (16) is fixedly connected to the bottom of the inner wall of the water inlet pipe (15), and a circular small hole (112) is provided on the sieve plate (16); a support rod (17) is fixedly connected to the middle of the top of the sieve plate (16), and a bearing (112) is fixedly connected to the support rod (17). 8), the bearing (18) is sealed, a group of toggle plates (19) are fixedly connected to the outer surface of the bearing (18), the toggle plates (19) are inclined, and the toggle plates (19) are located above the sieve plate (16); the toggle plates (19) are provided with a group of grooves (110) in the direction away from the support rod (17), and the top and bottom of the grooves (110) are parallel to the sieve plate (16); the water inlet pipe (15) is provided with a group of cutting blades (111) at a position corresponding to the grooves (110) horizontally, so that when the toggle plates (19) rotate, the cutting blades (111) pass through the grooves (110).

2. A high pressure jet pump according to claim 1, characterized in that: The water inlet pipe (15) is fixedly connected to an exhaust pipe (2), the exhaust pipe (2) is bent, one end of the exhaust pipe (2) extends out of the water inlet pipe (15), and the other end of the exhaust pipe (2) extends to the top of the support rod (17) with a gap left; a one-way valve (21) is provided on one end of the exhaust pipe (2) outside the water inlet pipe (15).

3. A high-pressure jet pump according to claim 2, characterized in that: The water inlet pipe (15) is provided with a buckle (3); the suction pipe (13) is fixedly connected with a slot block (31); the buckle (3) is turned over to disengage from the slot block (31), so that the water inlet pipe (15) is separated from the suction pipe (13).

4. A high-pressure jet pump according to claim 1, characterized in that: The nozzle (11) is made of rubber material, and an elastic tube (4) is fixedly connected to the neck of the nozzle (11), and the cross section of the elastic tube (4) is triangular.

5. A high-pressure jet pump according to claim 1, characterized in that: The mixing chamber (12) is provided with a flow valve (5) and a No. 1 threaded block (51); the mixing chamber (12) is provided with a drain pipe (52) in a direction facing away from the body (1); the mixing chamber (12) and the drain pipe (52) are connected via threads; a No. 2 sealing ring (53) is provided between the mixing chamber (12) and the drain pipe (52); the drain pipe (52) is fixedly connected with a No. 2 threaded block (54); the No. 2 threaded block (54) and the No. 1 threaded block (51) are connected via bolts (55).

6. A high-pressure jet pump according to claim 4, characterized in that: A group of conical retaining rings (6) are fixedly connected to the inner wall of the end of the body (1), and the conical surface of the conical retaining ring (6) faces the center of the body (1).

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