WO2019136890A1

WO2019136890A1 - Alternating pulse electromagnetic abrasive jet generation device

Info

Publication number: WO2019136890A1
Application number: PCT/CN2018/086058
Authority: WO
Inventors: 谢淮北; 张东速; 崔松; 袁帅伟
Original assignee: 安徽理工大学
Priority date: 2018-01-12
Filing date: 2018-05-08
Publication date: 2019-07-18
Also published as: LU101303B1; CN108000374A; LU101303A1

Abstract

An alternating pulse electromagnetic abrasive jet generation device, comprising a console (1), a pump station (2), a pulsed abrasive electromagnetic transport channel (3) and a low-pressure abrasive cylinder (4); and a stiff end spring (31), an elastic sleeve (32), a buffer soft spring (33) and an impact pressure sleeve (34) are successively mounted from the outside to the inside of the pulsed abrasive electromagnetic transport channel (3), a forward energizing coil (35) and a reverse energizing coil (36) are respectively mounted on the left and right ends, and an intermediate acceleration element (37) is mounted inside.

Description

Pulse alternating electromagnetic abrasive jet generating device

Technical field

The invention relates to the technical field of water jet mechanical device design, in particular to a pulse alternating electromagnetic abrasive jet generating device.

Background technique

The water jet is a jet of high velocity water of different shapes formed by the flow of the nozzle, the flow rate of which depends on the pressure drop before and after the nozzle exit section. Water jets are the simplest form of energy conversion and application. Usually, the power-driven pump pumps a certain amount of water to the high-pressure pipeline by performing a suction and discharge process on the water, so that it reaches the nozzle with a certain amount of energy. The aperture of the nozzle is required to be much smaller than the diameter of the high pressure line, so that this amount of water reaching the nozzle must be accelerated in order to flow out of the nozzle hole. Thus, the water that has accelerated the condensation through the nozzle holes forms a jet.

However, the existing pulse-alternating electromagnetic abrasive jet generating device cannot use the electromagnetically driven intermediate accelerating element to form a pulsed high-pressure jet function of the low-pressure abrasive and the water mixed liquid, and a high-pressure container tank is required as the abrasive storage tank, and high-pressure water and abrasive cannot be avoided. The high-pressure jet is formed by mixing and outputting in the mixing chamber under high pressure, which can not effectively avoid stopping the loading of sand, greatly reducing the working time and efficiency of the abrasive jet. Some pulse alternate electromagnetic abrasive jet generating devices can neither limit the elastic sleeve. The extreme position can limit the position of the elastic sleeve and the impact pressure sleeve, and can not effectively prevent the elastic sleeve and the impact pressure sleeve from directly colliding, thereby causing damage to the elastic sleeve and the impact pressure sleeve. Some pulse alternate electromagnetic abrasive jet generating devices cannot guarantee the high pressure state. The underlying abrasive and water mixture is smoothly output through the nozzle, and some pulse alternate electromagnetic abrasive jet generating devices cannot alternately accelerate the intermediate accelerating element to the electromagnetic conveying pulse in the low pressure state on both sides of the intermediate accelerating element. Accelerate to high pressure There are also some pulse alternate electromagnetic abrasive jet generating devices that cannot input the abrasive on the inner wall of the low pressure abrasive cylinder to the middle of the low pressure abrasive cylinder and accelerate the fluidization of the abrasive in the low pressure abrasive cylinder to facilitate the input of the abrasive into the vertical pipe, and some pulse alternate electromagnetic abrasives. The jet generating device cannot increase the degree of fluidization of the abrasive inside the low-pressure grinding cylinder from top to bottom and realize the rapid input of the abrasive into the vertical pipe. Further, the pulse alternate electromagnetic abrasive jet generating device cannot effectively prevent the intermediate accelerating component from passing through the speed. The side of the impact sleeve is blocked by the vertical outlet of the vertical tube, which causes the abrasive to enter the electromagnetic conveying pulse abrasive passage due to the blockage, which cannot meet the actual situation. Therefore, it is necessary to provide a pulse alternating electromagnetic abrasive jet generating device which is simple in structure, quick in operation, safe and efficient.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide a pulse alternating electromagnetic abrasive jet generating device which is simple in structure, quick in operation, safe and efficient.

In order to achieve the above object, the technical solution adopted by the present invention is as follows: a pulse alternating electromagnetic abrasive jet generating device, comprising a console and a pumping station, further comprising an electromagnetic conveying pulse abrasive passage and a low pressure abrasive drum, the electromagnetic conveying pulse In the abrasive passage, the electromagnetic conveying pulse abrasive passage is sequentially installed with an extreme hard spring, an elastic sleeve, a buffer soft spring and an impact pressure sleeve, and the pole hard spring, the elastic sleeve, the buffer soft spring and the impact pressure sleeve are symmetric Installed in the electromagnetic conveying pulse abrasive passage, the pole hard spring, the elastic sleeve, the buffer soft spring and the impact pressure sleeve are also located at the end of the electromagnetic conveying pulse abrasive passage, and the left end of the electromagnetic conveying pulse abrasive passage is installed with a positive direction An energizing coil, a right end of the electromagnetic conveying pulse abrasive passage is mounted with a reverse energizing coil, wherein the forward energizing coil and the reverse energizing coil are both located inside the two buffer soft springs, and the electromagnetic conveying pulse abrasive passage is further installed There is an intermediate accelerating element, and a U-shaped pipe is installed on the outer side of the low-pressure abrasive cylinder, and two sides of the U-shaped pipe are provided a vertical side tube, the inner side of the vertical side tube is mounted with a uniformly fluidized fan-shaped nozzle, and the diameter of the uniform fluidized fan-shaped nozzle is sequentially decreased from top to bottom, and the low-pressure abrasive barrel is The lower end is equipped with a vertical pipe, and the bottom pipe bottom interface is connected with the electromagnetic conveying pulse abrasive passage, the vertical pipe is located between the elastic sleeve and the impact pressure sleeve, and the right side of the buffer soft spring is subjected to the pressure limit end face. The position is located outside the inner side wall of the vertical tube.

A current direction controller is mounted on the upper end of the console, and wires on the forward energizing coil and the reverse energizing coil are respectively connected to the current direction controller, and nozzles are installed at both ends of the electromagnetic conveying pulse abrasive channel.

a concentration regulator is installed on the vertical pipe, a right concentration pipe is installed at a right end of the concentration regulator, and a right end of the adjusting concentration pipe is connected to a bottom of the pumping station through a one-way valve, and the concentration regulator is installed 4. There is a gate sand valve, the upper end of the U - shaped pipe is equipped with a connector.

The low-pressure abrasive cylinders are located at two sides of the pumping station, and the two sides of the pumping station are connected to the connecting head through a hose, and the upper end of the low-pressure abrasive drum is mounted with an end cap.

When used in the field, first, the operator fixes the sample to be processed on the workpiece table on both sides of the nozzle, adjusts the target distance between the sample to be processed and the nozzle, opens the end cap of the upper end of the low pressure abrasive cylinder, and then screens it. The abrasive is poured into a low-pressure abrasive cylinder, and the abrasive is filled with a low-pressure abrasive cylinder, and the end cap is covered.

Secondly, the operator starts the pumping station, low pressure and two water, one way low pressure water enters the U-shaped pipe through the connection head, and the low-pressure water in the U-shaped pipe enters the low-pressure grinding cylinder through the vertical side pipe to make the abrasive flow state in the low-pressure grinding cylinder Because the diameter of the vertical side tube decreases from top to bottom, the abrasive in the low pressure abrasive cylinder is intensified from top to bottom. The abrasive enters the concentration regulator through the vertical tube, and the low pressure water enters the concentration through the adjusted concentration tube. In the regulator, the position of the gate valve on the concentration regulator is adjusted to mix the low pressure water in the concentration regulator with the fluidized abrasive to form a certain concentration of the abrasive mixture.

Again, a certain concentration of the abrasive mixture enters the electromagnetic conveying pulse abrasive passage through the vertical tube, and a certain concentration of the abrasive mixture is filled with the electromagnetic conveying pulse abrasive passage, and when the intermediate acceleration component is located in the forward energizing coil, the starting console is started. The current direction controller causes the forward energizing coil to be energized, and the intermediate accelerating element is electromagnetically urged under the energizing operation to push the abrasive mixture liquid in the low pressure state on the right side of the intermediate accelerating element into the nozzle through the impact sleeve and the elastic sleeve, and A nozzle is ejected to form a pulse jet, and the intermediate accelerating element enters the reverse energizing coil, the current direction controller on the console causes the reverse energizing coil to be energized, and the intermediate accelerating element is subjected to electromagnetic force to push the intermediate accelerating element under energized operation. The abrasive mixture on the left side in the low pressure state enters the nozzle through the impact sleeve and the elastic sleeve, and the nozzle is sprayed to form a pulse jet, and the current direction controller is repeatedly activated, so that the abrasive is alternately pulsed from both ends of the electromagnetic conveying pulse abrasive passage. And process the sample to be processed.

Finally, the operator closes the pump station, then closes the gate valve on the concentration regulator and prevents the abrasive from entering the electromagnetic conveying pulse abrasive passage from the vertical tube, then closes the current direction controller on the console, and then according to the next operation. Time, reasonably clean the abrasive in the low-pressure abrasive cylinder, do regular maintenance of the equipment, and wait for the next processing work.

Compared with the prior art, the invention has the beneficial effects that the electromagnetic acceleration intermediate acceleration element can form the pulsed high pressure jet function of the low pressure abrasive and the water mixed liquid, without using a high pressure container tank as the abrasive storage tank, and avoiding the use of high pressure. The water and the abrasive are mixed and output in the mixing chamber under high pressure to form a high-pressure jet, which can effectively avoid stopping the loading of the sand, greatly extending the working time and efficiency of the abrasive jet, and setting the hard spring, the elastic sleeve and the buffering soft. The spring and the impact pressure sleeve can not only limit the limit position of the elastic sleeve but also limit the position of the elastic sleeve and the impact pressure sleeve, and can also effectively prevent the elastic sleeve and the impact pressure sleeve from directly colliding, thereby causing damage to the elastic sleeve and the impact pressure sleeve, and the elastic sleeve And the impact pressure sleeve can ensure that the abrasive and water mixture under high pressure can smoothly output through the nozzle, and the intermediate acceleration element can be alternately accelerated by setting the electromagnetic conveying pulse abrasive passage, the forward energizing coil, the reverse energizing coil and the intermediate accelerating component. Abrasive in the electromagnetic conveying pulse abrasive passage under low pressure state on both sides of the intermediate accelerating element The mixed liquid is accelerated to a high pressure state, and is sprayed through a nozzle to form a pulsed electromagnetic abrasive jet. The U-shaped pipe, the vertical side pipe and the uniformly fluidized fan-shaped nozzle can be used to move the abrasive on the inner wall of the low-pressure abrasive cylinder to the low-pressure abrasive cylinder. The middle part inputs and accelerates the fluidization of the abrasive in the low-pressure grinding cylinder, so that the abrasive is easy to input into the vertical pipe, and the uniformly distributed fluidized fan-shaped nozzle which is reduced in diameter from top to bottom can make the inner grinding of the low-pressure grinding cylinder from top to bottom. The degree of fluidization is sequentially increased and the abrasive is quickly input into the vertical pipe. The vertical pipe is disposed between the elastic sleeve and the impact sleeve, and the right compression end face of the buffer soft spring is located outside the inner side wall of the vertical pipe. The utility model can effectively prevent the intermediate accelerating component from being blocked by the side of the vertical pipe due to the excessive speed, so that the abrasive can not enter the electromagnetic conveying pulse abrasive passage due to the blockage, and the structure is simple, the operation is convenient, and the utility model is economical and practical.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

2 is a schematic view showing the positional relationship between the position of the right end end face of the buffer soft spring and the inner side wall of the vertical pipe under the pressure limit state;

Figure 3 is a schematic structural view of the elastic sleeve of Figure 1;

Figure 4 is a schematic structural view of the impact pressure sleeve of Figure 1;

FIG. 5 is a schematic structural view of the intermediate acceleration element of FIG. 1. FIG.

In the figure: 1, console; 11, current direction controller; 2, pump station; 3, electromagnetic conveying pulse abrasive channel; 31, pole hard spring; 32, elastic sleeve; 33, buffer soft spring; End face position; 34, impact pressure sleeve; 35, forward energizing coil; 36, reverse energizing coil; 37, intermediate accelerating element; 38, nozzle; 4, low pressure abrasive cylinder; 41, U-shaped pipe; 411, vertical Side tube; 412, connector; 4111, uniform flow fanning nozzle; 42, vertical tube; 421, concentration regulator; 4211, adjusting concentration tube; 4122, gate valve; 422, inner side wall; End cap.

Detailed ways

In order to facilitate the understanding of the technical means, the inventive features, the objects and the effects achieved by the present invention, the present invention will be further described below in conjunction with the specific embodiments and the drawings.

As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5, the pulse alternate electromagnetic abrasive jet generating device comprises a console 1 and a pump station 2, and further comprises an electromagnetic conveying pulse abrasive passage 3 and a low pressure. The grinding cylinder 4, the electromagnetic conveying pulse abrasive passage 3, the electromagnetic conveying pulse abrasive passage 3 is sequentially installed with an extreme hard spring 31, an elastic sleeve 32, a buffer soft spring 33 and an impact pressure sleeve 34, the pole The hard spring 31, the elastic sleeve 32, the buffer soft spring 33 and the impact pressure sleeve 34 are symmetrically mounted in the electromagnetic conveying pulse abrasive passage 3, and the pole hard spring 31, the elastic sleeve 32, the buffer soft spring 33 and the impact pressure sleeve 34 are 34. Also located at the end of the electromagnetic conveying pulse abrasive passage 3, the left end of the electromagnetic conveying pulse abrasive passage 3 is provided with a forward energizing coil 35, and the right end of the electromagnetic conveying pulse abrasive passage 3 is provided with a reverse energizing coil 36, The forward energizing coil 35 and the reverse energizing coil 36 are both located inside the two buffering soft springs 33. The electromagnetic conveying pulse abrasive passage 3 is further provided with an intermediate accelerating element 37, and the outer side of the low-pressure abrasive cylinder 4 is mounted with U. Shaped pipe 41, A vertical side tube 411 is disposed on both sides of the U-shaped duct 41, and a uniform fluidized fan-shaped nozzle 4111 is mounted on the inner side of the vertical side tube 411, and the diameter of the uniformly fluidized fan-shaped nozzle 4111 is installed. The lower end of the low-pressure abrasive drum 4 is installed with a vertical pipe 42. The bottom end of the vertical pipe 42 communicates with the electromagnetic conveying pulse abrasive passage 3, and the vertical pipe 42 is located in the elastic sleeve. Between 32 and the impact sleeve 34, the right side pressure limit end position 331 of the cushion soft spring 33 is located outside the inner side wall 422 of the vertical tube 42.

As shown in FIG. 1, the upper end of the console 1 is mounted with a current direction controller 11, and the wires on the forward energizing coil 35 and the reverse energizing coil 36 are respectively connected to the current direction controller 11, and the electromagnetic transmission A nozzle 38 is attached to both ends of the pulsed abrasive passage 3.

As shown in FIG. 1 and FIG. 2, the vertical pipe 42 is mounted with a concentration adjuster 421, the right end of the concentration adjuster 421 is mounted with a regulating concentration pipe 4211, and the right end of the adjusting density pipe 4211 is passed through a check valve. Connected to the bottom of the pumping station 2, the concentration regulator 4211 is mounted with a gate valve 4212, the upper end of the U-shaped pipe 41 is mounted with a connector 412.

As shown in FIG. 1, the low pressure abrasive drums 4 are located at two sides of the pumping station 2, and the two sides of the pumping station 2 are connected to the joint 412 by a hose, and the upper end of the low pressure abrasive drum 4 is equipped with an end cap. 43.

When used in the field, first, the operator fixes the sample to be processed on the workpiece table on both sides of the nozzle 38, adjusts the target distance between the sample to be processed and the nozzle 38, opens the end cover 43 at the upper end of the low pressure abrasive cylinder 4, and then The screened abrasive is poured into the low pressure abrasive drum 4, the abrasive is filled with the low pressure abrasive drum 4, and the end cap 43 is covered.

Secondly, the operator starts the pump station 2, two low-pressure water, one way low-pressure water enters the U-shaped pipe 41 through the connection head 412, and the low-pressure water in the U-shaped pipe 41 enters the low-pressure grinding cylinder 4 through the vertical side pipe 411 to make the low pressure The abrasive in the barrel 4 is fluidized, because the diameter of the vertical side tube 411 decreases from top to bottom, and the abrasive in the low pressure barrel 4 is intensified from top to bottom, and the abrasive enters the concentration regulator through the vertical tube 42. 421, a low-pressure water enters the concentration adjuster 421 through the adjusting concentration tube 4211, and adjusts the position of the gate sand valve 4212 of the concentration adjuster 421 to mix the low-pressure water in the concentration adjuster 421 with the fluidized abrasive to a certain concentration. Abrasive mixture.

Again, a certain concentration of the abrasive mixture enters the electromagnetically pulsing abrasive channel 3 through the vertical tube 42 and fills the electromagnetically pulsating abrasive channel 3 with a certain concentration of the abrasive mixture, when the intermediate acceleration element 37 is located in the forward energizing coil 35. The current direction controller 11 on the console 1 is activated to bring the forward energizing coil 35 into an energized state, and the intermediate accelerating element 37 is subjected to electromagnetic force during energization to push the abrasive mixture on the right side of the intermediate accelerating element 37 to a low pressure state. The pressure sleeve 34 and the elastic sleeve 32 enter the 38 nozzle, and the nozzle 38 is ejected to form a pulse jet, and the intermediate accelerating element 37 enters the reverse energizing coil 36, and the current direction controller 11 on the console 1 causes the reverse energizing coil. 36 is in an energized state, the intermediate accelerating element 37 is subjected to electromagnetic force during energization, and the abrasive mixture liquid which is in a low pressure state on the left side of the intermediate accelerating element 37 enters the 38 nozzle through the impact sleeve 34 and the elastic sleeve 32, and the nozzle 38 is ejected. Forming a pulse jet, repeatedly starting the current direction controller 11, so that the abrasive is alternately pulsed from both ends of the electromagnetic conveying pulse abrasive passage 3, and The sample to be processed is processed.

Finally, the operator closes the pump station 2, then closes the gate sand valve 4212 on the concentration adjuster 421 and prevents the abrasive from entering the electromagnetic conveying pulse abrasive passage 3 from the vertical tube 42, and then closes the current direction controller on the console 1. 11. According to the next operation time, reasonably clean the abrasive in the low-pressure abrasive drum 4, do regular maintenance of the equipment, and wait for the next processing work.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is only described in the foregoing description and the description of the present invention, without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

Claims

A pulse alternating electromagnetic abrasive jet generating device, comprising a console and a pumping station, characterized by: further comprising an electromagnetic conveying pulse abrasive passage and a low pressure abrasive drum, the electromagnetic conveying pulse abrasive passage, the electromagnetic conveying pulse outside the abrasive passage The pole hard spring, the elastic sleeve, the buffer soft spring and the impact pressure sleeve are sequentially installed therein, and the pole hard spring, the elastic sleeve, the buffer soft spring and the impact pressure sleeve are symmetrically installed in the electromagnetic conveying pulse abrasive passage, The pole hard spring, the elastic sleeve, the buffer soft spring and the impact pressure sleeve are also located at the end of the electromagnetic conveying pulse abrasive passage, and the left end of the electromagnetic conveying pulse abrasive passage is provided with a forward energizing coil, and the electromagnetic conveying pulse abrasive passage is A reverse energizing coil is mounted on the right end, and the forward energizing coil and the reverse energizing coil are both located inside the two buffer soft springs, and the electromagnetic conveying pulse abrasive passage is further equipped with an intermediate accelerating element, the low pressure grinding barrel a U-shaped pipe is installed on the outer side, and a vertical side pipe is disposed on both sides of the U-shaped pipe, and the inner side of the vertical side pipe is installed A fluidized fan-shaped nozzle is arranged, and the diameter of the uniformly fluidized fan-shaped nozzle is sequentially decreased from top to bottom, and a vertical pipe is installed at a lower end of the low-pressure abrasive cylinder, and the bottom of the vertical pipe is electromagnetically connected The conveying pulse abrasive passage is in communication, the vertical tube is located between the elastic sleeve and the impact pressure sleeve, and the right compression end surface position of the buffer soft spring is located outside the inner side wall of the vertical tube.
The pulse alternating electromagnetic abrasive jet generating device according to claim 1, wherein a current direction controller is mounted on the upper end of the console, and the wires on the forward energizing coil and the reverse energizing coil are respectively connected. On the current direction controller, nozzles are mounted at both ends of the electromagnetic conveying pulse abrasive passage.
A pulse alternating electromagnetic abrasive jet generating device according to claim 1, wherein: the vertical pipe is provided with a concentration regulator, and the right end of the concentration regulator is equipped with a regulating concentration pipe, the adjusting The right end of the concentration tube is connected to the bottom of the pump station through a one-way valve, and the concentration regulator is mounted with a gate valve, and the upper end of the U-shaped pipe is provided with a connector.
The pulse alternating electromagnetic abrasive jet generating device according to claim 1, wherein the low pressure abrasive drum is located at two sides of the pumping station, and both sides of the pumping station are connected to the connecting head through a hose. An end cap is mounted on the upper end of the low pressure abrasive drum.