Abrasive slurry continuous jet device

Abstract

The utility model provides a kind of abrasive slurry continuous jet device.Device includes: high-pressure power component, including oil tank, hydraulic oil pump and reversing valve assembly;Diaphragm continuous slurry supply component, diaphragm pump can pump abrasive slurry in abrasive slurry tank into first diaphragm tank or second diaphragm tank;Wherein, the first cavity of first diaphragm tank and the first cavity of second diaphragm tank are respectively connected to oil tank by reversing valve assembly;The second cavity of first diaphragm tank is connected to abrasive slurry tank by first stop valve, and the second cavity of second diaphragm tank is connected to abrasive slurry tank by second stop valve;Processing execution component, including abrasive slurry jet nozzle, abrasive slurry jet nozzle is connected to the second cavity of first diaphragm tank by third stop valve, and is connected to the second cavity of second diaphragm tank by fourth stop valve.The utility model uses first diaphragm tank and second diaphragm tank to alternate and spray abrasive slurry, and abrasive slurry can be continuously and uninterruptedly sprayed.

Description

Technical Field

[0001] This utility model relates to the field of high-energy beam processing, and in particular to a continuous jet device for abrasive slurry. Background Technology

[0002] High-pressure abrasive jets are widely used in mining, metallurgy, manufacturing, aerospace, and other fields, specifically for applications such as rock breaking, surface pretreatment, cleaning, and machining. Depending on the mixing method of the abrasive and water, abrasive water jets are further divided into pre-mixed and post-mixed types. Pre-mixed abrasive water jets involve pre-mixing the abrasive and water in an abrasive tank before the nozzle. This system typically provides better mixing, and under the same pump pressure, its jet power and energy are often superior to post-mixed abrasive water jets. However, pre-mixed abrasive water jets have disadvantages such as system complexity, discontinuous feeding, and the potential for significant wear on pipes and nozzles caused by abrasive particles. Post-mixed abrasive water jets mix the abrasive and water inside the nozzle. While they offer advantages such as simple structure and long system life, their disadvantage is uneven mixing of abrasive particles and water, resulting in lower jet energy density and power. Traditional premixing and abrasive jet systems typically operate with a single high-pressure tank. This tank is responsible for mixing the abrasive and water, storing the mixed slurry, and withstanding extremely high operating pressures. Therefore, the tank volume is generally small, leading to problems such as discontinuous abrasive slurry supply, uneven mixing, and inability to recycle, thus limiting the system's continuous and stable operation. While parallel operation with two high-pressure tanks achieves continuous operation, the reversing valve is easily worn down by the abrasive particles during the switching process, potentially causing it to fail. This still cannot guarantee system stability and lifespan. Utility Model Content

[0003] To address the problems of discontinuous abrasive slurry supply, uneven mixing, short service life, and inability to be recycled in existing technologies, this utility model provides a continuous abrasive slurry jetting device.

[0004] The continuous jet abrasive slurry device provided in this embodiment of the invention includes:

[0005] The high-pressure power unit includes an oil tank, a hydraulic oil pump, and a reversing valve assembly. The hydraulic oil pump can pump the hydraulic oil in the oil tank into the diaphragm continuous slurry supply assembly.

[0006] A diaphragm continuous slurry supply assembly includes an abrasive slurry tank, a diaphragm pump, a first diaphragm tank, and a second diaphragm tank. The diaphragm pump pumps the abrasive slurry from the abrasive slurry tank into either the first or second diaphragm tank. The first chamber of the first diaphragm tank and the first chamber of the second diaphragm tank are respectively connected to an oil tank via a reversing valve assembly. By controlling the flow direction of hydraulic oil within the reversing valve assembly, the flow of hydraulic oil into the first chamber of the first diaphragm tank or into the first chamber of the second diaphragm tank can be controlled. The second chamber of the first diaphragm tank is connected to the abrasive slurry tank via a first shut-off valve, and the second chamber of the second diaphragm tank is connected to the abrasive slurry tank via a second shut-off valve. By controlling the opening and closing of the first and second shut-off valves, the diaphragm pump pumps the abrasive slurry from the abrasive slurry tank into either the second chamber of the first or second diaphragm tank.

[0007] The processing execution component includes an abrasive slurry jet nozzle, a third shut-off valve, and a fourth shut-off valve. The abrasive slurry jet nozzle is connected to the second cavity of the first diaphragm tank via the third shut-off valve and to the second cavity of the second diaphragm tank via the fourth shut-off valve. By controlling the opening and closing of the third and fourth shut-off valves, the abrasive slurry in the second cavity of the first diaphragm tank or the abrasive slurry in the second cavity of the second diaphragm tank can be selected to be sprayed from the abrasive slurry jet nozzle onto the workpiece.

[0008] Furthermore, the directional valve assembly includes a first two-position three-way directional valve and a second two-position three-way directional valve. The first two-position three-way directional valve has its first end connected to an oil tank, its second end connected to an oil tank via a hydraulic pump, and its third end connected to a first diaphragm tank. The second two-position three-way directional valve has its first end connected to an oil tank, its second end connected to an oil tank via a hydraulic pump, and its third end connected to a second diaphragm tank.

[0009] Furthermore, a first filter is provided between the first diaphragm tank and the first two-position three-way directional valve, and a second filter is provided between the second diaphragm tank and the second two-position three-way directional valve, to filter the hydraulic oil.

[0010] Furthermore, the continuous jet abrasive slurry device also includes:

[0011] The slurry preparation and recovery assembly includes a fluid collection tank located below the workpiece, an abrasive slurry classification and recovery device connected to one side of the fluid collection tank, an abrasive slurry classification and recovery device connected to an abrasive slurry mixing device, an abrasive slurry mixing device also connected to a water tank and a sand box, and an abrasive slurry mixing device connected to an abrasive slurry tank.

[0012] Furthermore, the abrasive slurry recycling and grading device includes an abrasive filter and a grading conveying device, which can filter out impurities outside the abrasive and convey the filtered slurry to the abrasive slurry mixing device.

[0013] Furthermore, the water tank is connected to the abrasive slurry mixing device via a water pump and a first flow meter, and the sand box is connected to the abrasive slurry mixing device via a second flow meter.

[0014] Furthermore, the first diaphragm tank and the second diaphragm tank are diaphragm tanks with the same structure. A diaphragm is provided between the first cavity and the second cavity of the diaphragm tank. The diaphragm is used to isolate the first cavity and the second cavity and to transmit pressure between the first cavity and the second cavity. Pressure sensors are connected to both the first cavity and the second cavity to monitor and feed back the pressure signals inside the first cavity and the second cavity.

[0015] Furthermore, the geometry of the abrasive slurry jet nozzle and the jet target distance are adjustable.

[0016] Furthermore, a first check valve is provided between the first diaphragm tank and the abrasive slurry tank, and a second check valve is provided between the second diaphragm tank and the abrasive slurry tank, to control the flow direction of the abrasive slurry.

[0017] Furthermore, the continuous jet abrasive slurry device also includes a monitoring and control system, which is used to detect the flow rate and velocity of the hydraulic oil and abrasive slurry in the continuous jet abrasive slurry device, and to control the hydraulic oil pump, diaphragm pump, first shut-off valve, second shut-off valve, third shut-off valve and fourth shut-off valve.

[0018] The abrasive slurry continuous jet device provided by this utility model has the following beneficial effects:

[0019] 1. By alternately injecting and spraying abrasive slurry from the first diaphragm tank and the second diaphragm tank, continuous and uninterrupted spraying of abrasive slurry can be achieved;

[0020] 2. During system operation, the diaphragm pump pumps the pre-mixed abrasive slurry from the abrasive slurry tank into the diaphragm tank. Pre-mixing ensures a more uniform distribution of abrasive particles in the jet, improving the surface quality after processing. Simultaneously, pre-mixing facilitates abrasive particle acceleration, enhances jet cutting capability, and increases operational efficiency.

[0021] 3. The first diaphragm tank and the second diaphragm tank work simultaneously. Through the shut-off valve and the control system, the two diaphragm tanks automatically alternately inject and spray abrasive slurry, avoiding the problem that the sliding solenoid valve is easily corroded and damaged by abrasive particles. This achieves continuous jetting of abrasive slurry while ensuring the long service life of equipment parts.

[0022] 4. The diaphragm has strong toughness, which can effectively resist the erosion of abrasive slurry. At the same time, using the diaphragm as the energy transfer medium, static pressure energy transfer is achieved, resulting in low pressure loss, low energy consumption, and stable system operation. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the continuous jet abrasive slurry device of this utility model;

[0024] Wherein: 11-oil tank; 12-hydraulic oil pump; 13-first pressure sensor; 14-two-position three-way directional valve; 15-filter; 21-first diaphragm tank; 22-first check valve; 23-first shut-off valve; 24-abrasive slurry tank; 25-second pressure sensor; 26-diaphragm pump; 31-abrasive slurry jet nozzle; 32-third shut-off valve; 41-fluid collection tank; 42-abrasive slurry classification and recovery device; 43-water pump; 44-water pool; 45-abrasive slurry mixing device; 46-second flow meter; 47-abrasive tank; 50-monitoring and control system. Detailed Implementation

[0025] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0026] This invention provides a continuous jet abrasive slurry device. For example... Figure 1 As shown, the abrasive slurry continuous jet device provided in this utility model includes: a high-pressure power component 10, a diaphragm continuous slurry supply component 20, a processing execution component 30, a slurry preparation and recovery component 40, and a monitoring and control component 50. The high-pressure power component 10 can provide injection pressure to the diaphragm continuous slurry supply component 20, so that the abrasive slurry in the diaphragm continuous slurry supply component 20 is sprayed onto the workpiece through the processing execution component 30.

[0027] Specifically, the high-pressure power assembly 10 includes an oil tank 11, a hydraulic oil pump 12, and a reversing valve assembly, wherein the hydraulic oil pump 12 can pump the hydraulic oil in the oil tank 11 into the diaphragm continuous slurry supply assembly 20. The diaphragm continuous slurry supply assembly 20 includes an abrasive slurry tank 24, a diaphragm pump 26, a first diaphragm tank 21, and a second diaphragm tank. The diaphragm pump 26 can pump the abrasive slurry in the abrasive slurry tank 24 into the first diaphragm tank 21 or the second diaphragm tank. The first chamber of the first diaphragm tank 21 and the first chamber of the second diaphragm tank are respectively connected to the oil tank 11 through a reversing valve assembly. By controlling the flow direction of the hydraulic oil in the reversing valve assembly, the hydraulic oil can be controlled to flow into the first chamber of the first diaphragm tank 21 or into the first chamber of the second diaphragm tank. The second chamber of the first diaphragm tank 21 is connected to the abrasive slurry tank 24 through a first shut-off valve 23, and the second chamber of the second diaphragm tank is connected to the abrasive slurry tank 24 through a second shut-off valve. By controlling the opening and closing of the first shut-off valve 23 and the second shut-off valve, the diaphragm pump 26 can pump the abrasive slurry in the abrasive slurry tank 24 into the second chamber of the first diaphragm tank 21 or the second chamber of the second diaphragm tank. The processing execution component 30 includes an abrasive slurry jet nozzle 31, a third shut-off valve 32, and a fourth shut-off valve. The abrasive slurry jet nozzle 31 is connected to the second cavity of the first diaphragm tank 21 via the third shut-off valve 32, and to the second cavity of the second diaphragm tank via the fourth shut-off valve. By controlling the opening and closing of the third shut-off valve 32 and the fourth shut-off valve, the abrasive slurry in the second cavity of the first diaphragm tank 21 or the second diaphragm tank is selected to be sprayed from the abrasive slurry jet nozzle 31 onto the workpiece. It should be noted that in this embodiment of the present invention, the first diaphragm tank 21 and the second diaphragm tank have the same structure. Figure 1 Only the first diaphragm tank 21 is labeled in the document. In the corresponding first shut-off valve 23 and second shut-off valve, only the first shut-off valve 23 is labeled. In the third shut-off valve 32 and fourth shut-off valve, only the third shut-off valve 32 is labeled.

[0028] Furthermore, the directional valve assembly includes a first two-position three-way directional valve 14 and a second two-position three-way directional valve. The first two-position three-way directional valve 14 is connected to the oil tank 11 at its first end, the second end of which is connected to the oil tank 11 via a hydraulic oil pump 12, and the third end of which is connected to the first diaphragm tank 21. The second two-position three-way directional valve is connected to the oil tank 11 at its first end, the second end of which is connected to the oil tank 11 via a hydraulic oil pump 12, and the third end of which is connected to the second diaphragm tank.

[0029] Specifically, when the first and third ends of the first two-position three-way directional valve 14 are connected, the hydraulic oil in the first diaphragm tank 21 can flow directly into the oil tank 11. When the second and third ends of the first two-position three-way directional valve 14 are connected, the hydraulic oil in the oil tank 11 is pumped into the first diaphragm tank 21 by the hydraulic oil pump 12. Correspondingly, when the first and third ends of the second two-position three-way directional valve are connected, the hydraulic oil in the second diaphragm tank can flow directly into the oil tank 11. When the second and third ends of the second two-position three-way directional valve are connected, the hydraulic oil in the oil tank 11 is pumped into the second diaphragm tank by the hydraulic oil pump 12. This utility model, by setting two two-position three-way directional valves to connect the oil circuit, avoids the problem of sliding solenoid valves being easily corroded and damaged by abrasive particles, and achieves continuous jetting of abrasive slurry while ensuring the long service life of equipment parts.

[0030] Furthermore, a first pressure sensing device 13 is also provided on the connection path of the hydraulic oil pump 12 to detect the hydraulic oil pressure on the hydraulic oil pipeline.

[0031] Furthermore, a first filter 15 is provided between the first diaphragm tank 21 and the first two-position three-way directional valve 14, and a second filter is provided between the second diaphragm tank and the second two-position three-way directional valve to filter the hydraulic oil. This invention, through the first filter 15 and the second filter, can filter not only the hydraulic oil pumped into the diaphragm tank but also the hydraulic oil returning to the hydraulic oil tank 11, ensuring the recycling of the hydraulic oil.

[0032] Furthermore, in this embodiment of the present invention, the first diaphragm tank 21 and the second diaphragm tank are diaphragm tanks with identical structures, and a diaphragm is provided between the first cavity and the second cavity of the diaphragm tank. The diaphragm has the function of separating and sealing, and is used to isolate the first cavity and the second cavity, thus completely isolating the hydraulic oil in the first cavity from the abrasive slurry in the second cavity.

[0033] Furthermore, the diaphragm can also transmit pressure between the first and second chambers. When hydraulic oil is pumped into the first chamber, the pressure in the first chamber increases, and this pressure is transmitted to the second chamber through the diaphragm, causing the abrasive slurry in the second chamber to flow out. Conversely, when abrasive slurry is pumped into the second chamber, the pressure in the second chamber increases, and this pressure is transmitted to the first chamber through the diaphragm, causing the hydraulic oil in the first chamber to flow back to the hydraulic oil tank 11. In addition, pressure sensors are connected to both the first and second chambers to monitor and provide feedback on the pressure signals inside both chambers.

[0034] In this invention, the diaphragm possesses strong toughness, effectively resisting the erosive effects of abrasive slurry. Simultaneously, using the diaphragm as the energy transfer medium enables hydrostatic energy transfer, resulting in low pressure loss, low energy consumption, and stable system operation.

[0035] It should be noted that, in order to make the control smoother, in a specific embodiment of this utility model, when arranging the diaphragm tank, the first cavity is set at the top as the upper cavity, and the second cavity is set at the bottom as the lower cavity. At this time, the abrasive slurry in the lower cavity is affected not only by the pressure of the hydraulic oil, but also by its own gravity, which promotes the ejection of the abrasive slurry.

[0036] Furthermore, in addition to the first shut-off valve 23, a first check valve 22 is also provided in the connection passage between the first diaphragm tank 21 and the abrasive slurry tank 24. In addition to the second shut-off valve, a second check valve is also provided in the connection passage between the second diaphragm tank and the abrasive slurry tank 24. The check valve can control the flow direction of the abrasive slurry. Specifically, the first check valve 22 allows the abrasive slurry in the abrasive slurry tank 24 to flow unidirectionally to the first diaphragm tank 21, and the second check valve allows the abrasive slurry in the abrasive slurry tank 24 to flow unidirectionally to the second diaphragm tank.

[0037] Furthermore, the abrasive slurry flow paths of the first diaphragm tank 21 and the second diaphragm tank converge at the first main passage and are connected to the abrasive slurry tank 24. A diaphragm pump 26 is installed on the first main passage, allowing the pumping of abrasive slurry from both diaphragm tanks to be controlled by a single pump. Additionally, a second pressure sensor 25 is installed on the first main passage to detect the pressure of the abrasive slurry in the first main passage.

[0038] Furthermore, in the processing execution component 30, the first diaphragm tank 21 and the second diaphragm tank are connected to the second main passage at the abrasive slurry jet nozzle 31 after passing through the third shut-off valve 32 and the fourth shut-off valve, thereby realizing the flow of abrasive slurry to abrasive slurry jet nozzle 31.

[0039] Furthermore, the geometry of the abrasive slurry jet nozzle 31 and the jet target distance are adjustable. The geometry of the abrasive nozzle and the jet target distance can be flexibly adjusted to meet different work objects and conditions, resulting in higher system efficiency and processing quality.

[0040] Furthermore, the continuous jet abrasive slurry device provided in this embodiment of the present invention also includes: a slurry preparation and recovery component 40, including a fluid collection pool 41 disposed below the workpiece, an abrasive slurry classification and recovery device 42 connected to one side of the fluid collection pool 41, the abrasive slurry classification and recovery device 42 connected to the abrasive slurry mixing device 45, the abrasive slurry mixing device 45 also connected to a water pool 44 and a sand box 47 respectively, and the abrasive slurry mixing device 45 connected to the abrasive slurry tank 24.

[0041] Furthermore, the abrasive slurry recycling and grading device includes an abrasive filter and a grading conveying device, which can filter out impurities outside the abrasive and convey the filtered slurry to the abrasive slurry mixing device 45.

[0042] Furthermore, the water tank 44 is connected to the abrasive slurry mixing device 45 via a water pump 43 and a first flow meter, and the sand box 47 is connected to the abrasive slurry mixing device 45 via a second flow meter 46. After the recovered and separated slurry is transported to the abrasive slurry mixing device 45, clean water and sand particles can be added in a certain proportion to obtain a suitable abrasive slurry concentration. The prepared abrasive slurry can be transported to the abrasive slurry tank for reuse.

[0043] Furthermore, this invention transmits the prepared abrasive slurry to the abrasive slurry tank 24 through the passage between the abrasive slurry mixing device 45 and the abrasive slurry tank 24. Through pre-mixing and blending, the abrasive particles are more evenly distributed in the jet, which can improve the surface quality after processing. At the same time, it is also beneficial to accelerate the abrasive particles, enhance the jet cutting ability, and improve the work efficiency.

[0044] Furthermore, the continuous abrasive slurry jetting device provided in this embodiment of the present invention also includes a monitoring and control system 50, used to detect the flow rate and velocity of the hydraulic oil and abrasive slurry within the continuous abrasive slurry jetting device, and to control the hydraulic oil pump 12, diaphragm pump 26, first shut-off valve 23, second shut-off valve, third shut-off valve 32, and fourth shut-off valve. Specifically, it includes a signal receiver for monitoring system pressure and flow rate, and a wireless control device capable of automatically / manually adjusting system parameters in real time.

[0045] The control method of the continuous jet abrasive slurry device of this utility model will be described in further detail below. Specifically, during the continuous jetting of abrasive slurry, the method is as follows:

[0046] S1. Control the second cavity of the first diaphragm tank 21 to be connected to the abrasive slurry tank 24, and pump abrasive slurry into the second cavity of the first diaphragm tank 21 to perform energy storage operation of the first diaphragm tank 21; at this time, the first cavity of the first diaphragm tank 21 is connected to the oil tank 11, so that the hydraulic oil in the first cavity of the first diaphragm tank 21 flows back to the oil tank 11; control the first cavity of the second diaphragm tank to be connected to the oil tank 11 through the hydraulic oil pump 12, and pump hydraulic oil into the first cavity of the second diaphragm tank, so that the pressure is transmitted to the second cavity of the second diaphragm tank through the diaphragm of the second diaphragm tank, so that the abrasive slurry in the second cavity of the second diaphragm tank is ejected.

[0047] S2. After the abrasive slurry in the second chamber of the first diaphragm tank 21 has completed energy storage, the first chamber of the first diaphragm tank 21 is connected to the oil tank 11 via the hydraulic oil pump 12 to pump hydraulic oil into the first chamber of the first diaphragm tank 21. The pressure is transmitted to the second chamber of the first diaphragm tank 21 through the diaphragm of the first diaphragm tank 21, causing the abrasive slurry in the second chamber of the first diaphragm tank 21 to be ejected. The second chamber of the second diaphragm tank is connected to the abrasive slurry tank 24 to pump abrasive slurry into the second chamber of the second diaphragm tank, thus performing the energy storage operation of the second diaphragm tank.

[0048] S3. After the abrasive slurry in the second cavity of the second diaphragm tank has completed its energy storage, return to step S1. This utility model achieves continuous and uninterrupted spraying of abrasive slurry by having the first diaphragm tank 21 and the second diaphragm tank work simultaneously and by alternately injecting and spraying the abrasive slurry into the first diaphragm tank 21 and the second diaphragm tank.

[0049] Further, in the specific operation process of step S1, the first and third ends of the first two-position three-way directional valve 14 are connected, so that the first diaphragm tank 21 is directly connected to the oil tank 11. The second and third ends of the second two-position three-way directional valve are connected, so that the second diaphragm tank and the oil tank 11 are connected through the hydraulic oil pump 12. When the abrasive slurry is pumped into the second chamber, the hydraulic oil in the first chamber of the first diaphragm tank 21 flows back to the oil tank 11 under the action of the abrasive slurry pressure, and the hydraulic oil pump 12 pumps the hydraulic oil from the oil tank 11 into the first chamber of the second diaphragm tank. At the same time, the first shut-off valve 23 between the first diaphragm tank 21 and the abrasive slurry tank 24 is opened, and the second shut-off valve between the second diaphragm tank and the abrasive slurry tank 24 is closed, so that the diaphragm pump 26 pumps the abrasive slurry in the abrasive slurry tank 24 into the first diaphragm tank 21. At the same time, the third shut-off valve 32 between the first diaphragm tank 21 and the abrasive slurry jet nozzle 31 is closed, and the fourth shut-off valve between the second diaphragm tank and the abrasive slurry jet nozzle 31 is opened, so that when the hydraulic oil pump 12 pumps hydraulic oil from the oil tank 11 into the first cavity of the second diaphragm tank, the abrasive slurry in the second cavity of the second diaphragm tank is ejected from the abrasive slurry jet nozzle 31.

[0050] Further, in the specific operation process of step S2, the second and third ends of the first two-position three-way directional valve 14 are connected, so that the first diaphragm tank 21 and the oil tank 11 are connected through the hydraulic oil pump 12. The first and third ends of the second two-position three-way directional valve are connected, so that the second diaphragm tank and the oil tank 11 are connected. When the abrasive slurry is pumped into the second chamber, the hydraulic oil in the first chamber in the second diaphragm tank flows back to the oil tank 11 under the action of the abrasive slurry pressure. At the same time, the hydraulic oil pump 12 pumps the hydraulic oil from the oil tank 11 into the first chamber of the first diaphragm tank 21. Simultaneously, the first shut-off valve 23 between the first diaphragm tank 21 and the abrasive slurry tank 24 is closed, and the second shut-off valve between the second diaphragm tank and the abrasive slurry tank 24 is opened, so that the diaphragm pump 26 pumps the abrasive slurry in the abrasive slurry tank 24 into the second diaphragm tank. At the same time, the third shut-off valve 32 between the second diaphragm tank and the abrasive slurry jet nozzle 31 is opened, and the fourth shut-off valve between the second diaphragm tank and the abrasive slurry jet nozzle 31 is closed, so that the abrasive slurry in the second cavity of the first diaphragm tank 21 is ejected from the abrasive slurry jet nozzle 31.

[0051] This invention enables the simultaneous operation of the first diaphragm tank 21 and the second diaphragm tank, achieving continuous and uninterrupted injection of abrasive slurry.

[0052] Furthermore, in this embodiment of the invention, while continuously spraying the abrasive slurry, the following steps may also be included:

[0053] S4. The abrasive slurry classification and recovery device 42 recovers and processes the abrasive slurry in the fluid collection tank 41 and then transports it to the abrasive slurry mixing device 45. Based on the concentration of the abrasive slurry in the abrasive slurry mixing device 45, it adds clean water and sand to adjust the abrasive slurry concentration to obtain a suitable concentration.

[0054] In this embodiment of the invention, the amount of water and sand flowing into the abrasive slurry mixing device 45 is controlled by the first flow meter and the second flow meter 46, respectively, so as to adjust the concentration of the abrasive slurry.

[0055] The abrasive slurry continuous jet device provided by this utility model has the following beneficial effects:

[0056] 1. By alternately injecting and spraying abrasive slurry from the first diaphragm tank 21 and the second diaphragm tank, continuous and uninterrupted spraying of abrasive slurry can be achieved;

[0057] 2. During system operation, the diaphragm pump 26 pumps the pre-mixed abrasive slurry from the abrasive slurry tank 24 into the diaphragm tank. Through pre-mixing, the abrasive particles are more evenly distributed in the jet, which can improve the surface quality after processing. At the same time, pre-mixing helps to accelerate the abrasive particles, enhance the jet cutting ability, and improve the operation efficiency.

[0058] 3. The first diaphragm tank 21 and the second diaphragm tank work simultaneously. Through the shut-off valve and the control system, the two diaphragm tanks automatically alternately inject and spray abrasive slurry, avoiding the problem that the sliding solenoid valve is easily corroded and damaged by abrasive particles. This achieves continuous jetting of abrasive slurry while ensuring the long service life of equipment parts.

[0059] 4. The diaphragm has strong toughness, which can effectively resist the erosion of abrasive slurry. At the same time, using the diaphragm as the energy transfer medium, static pressure energy transfer is achieved, resulting in low pressure loss, low energy consumption, and stable system operation.

[0060] The above-described specific embodiments and examples demonstrate the effectiveness and innovation of this utility model, and highlight the system design principle and surface treatment advantages of the continuous jet abrasive slurry device.

Claims

1. A continuous jet abrasive slurry device, characterized in that, include: The high-pressure power unit includes an oil tank, a hydraulic oil pump, and a reversing valve assembly. The hydraulic oil pump can pump the hydraulic oil in the oil tank into the diaphragm continuous slurry supply assembly. A diaphragm continuous slurry supply assembly includes an abrasive slurry tank, a diaphragm pump, a first diaphragm tank, and a second diaphragm tank. The diaphragm pump pumps the abrasive slurry from the abrasive slurry tank into either the first or second diaphragm tank. The first chamber of the first diaphragm tank and the first chamber of the second diaphragm tank are respectively connected to an oil tank via a reversing valve assembly. By controlling the flow direction of hydraulic oil within the reversing valve assembly, the flow of hydraulic oil into the first chamber of the first diaphragm tank or into the first chamber of the second diaphragm tank can be controlled. The second chamber of the first diaphragm tank is connected to the abrasive slurry tank via a first shut-off valve, and the second chamber of the second diaphragm tank is connected to the abrasive slurry tank via a second shut-off valve. By controlling the opening and closing of the first and second shut-off valves, the diaphragm pump pumps the abrasive slurry from the abrasive slurry tank into either the second chamber of the first or second diaphragm tank. The processing execution component includes an abrasive slurry jet nozzle, a third shut-off valve, and a fourth shut-off valve. The abrasive slurry jet nozzle is connected to the second cavity of the first diaphragm tank via the third shut-off valve and to the second cavity of the second diaphragm tank via the fourth shut-off valve. By controlling the opening and closing of the third and fourth shut-off valves, the abrasive slurry in the second cavity of the first diaphragm tank or the abrasive slurry in the second cavity of the second diaphragm tank can be selected to be sprayed from the abrasive slurry jet nozzle onto the workpiece.

2. The continuous jet abrasive slurry device according to claim 1, characterized in that, The directional valve assembly includes a first two-position three-way directional valve and a second two-position three-way directional valve. The first two-position three-way directional valve has its first end connected to the oil tank, its second end connected to the oil tank via a hydraulic oil pump, and its third end connected to the first diaphragm tank. The second two-position three-way directional valve has its first end connected to the oil tank, its second end connected to the oil tank via a hydraulic oil pump, and its third end connected to the second diaphragm tank.

3. The continuous jet abrasive slurry device according to claim 2, characterized in that, A first filter is installed between the first diaphragm tank and the first two-position three-way directional valve, and a second filter is installed between the second diaphragm tank and the second two-position three-way directional valve to filter the hydraulic oil.

4. The continuous jet abrasive slurry device according to claim 1, characterized in that, The continuous jet abrasive slurry device also includes: The slurry preparation and recovery assembly includes a fluid collection tank located below the workpiece, an abrasive slurry classification and recovery device connected to one side of the fluid collection tank, an abrasive slurry classification and recovery device connected to an abrasive slurry mixing device, an abrasive slurry mixing device also connected to a water tank and a sand box, and an abrasive slurry mixing device connected to an abrasive slurry tank.

5. The continuous jet abrasive slurry device according to claim 3, characterized in that, The abrasive slurry recycling and grading device includes an abrasive filter and a grading conveying device, which can filter out impurities outside the abrasive and convey the filtered slurry to the abrasive slurry mixing device.

6. The continuous jet abrasive slurry device according to claim 5, characterized in that, The water tank is connected to the abrasive slurry mixing device via a water pump and a first flow meter, and the sand box is connected to the abrasive slurry mixing device via a second flow meter.

7. The continuous jet abrasive slurry device according to claim 1, characterized in that, The first diaphragm tank and the second diaphragm tank are diaphragm tanks with the same structure. A diaphragm is provided between the first cavity and the second cavity of the diaphragm tank. The diaphragm is used to isolate the first cavity and the second cavity and to transmit pressure between the first cavity and the second cavity. Pressure sensors are connected to both the first cavity and the second cavity to monitor and feed back the pressure signals inside the first cavity and the second cavity.

8. The continuous jet abrasive slurry device according to claim 1, characterized in that, The geometry of the abrasive slurry jet nozzle and the jet target distance are adjustable.

9. The continuous jet abrasive slurry device according to claim 1, characterized in that, A first check valve is installed between the first diaphragm tank and the abrasive slurry tank, and a second check valve is installed between the second diaphragm tank and the abrasive slurry tank to control the flow direction of the abrasive slurry.

10. The continuous jet abrasive slurry device according to claim 1, characterized in that, The abrasive slurry continuous jet device also includes a monitoring and control system, which is used to detect the flow rate and velocity of the hydraulic oil and abrasive slurry in the abrasive slurry continuous jet device, and to control the hydraulic oil pump, diaphragm pump, first shut-off valve, second shut-off valve, third shut-off valve and fourth shut-off valve.

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