Ultrahigh-pressure liquid flow grinding system

Abstract

The invention discloses an ultrahigh pressure liquid flow mill system which comprises a feeding pump used for providing slurry, a slurry booster pump used for boosting, a homogenizing device internally provided with an interaction containing cavity and a condenser used for reducing the temperature of the slurry, and the feeding pump, the slurry booster pump, the homogenizing device and the condenser are sequentially communicated. The slurry booster pump comprises a plunger pump and a plurality of high-pressure one-way valve sets, and each high-pressure one-way valve set is at least composed of a plurality of one-way valves which are sequentially connected in series in the slurry conveying direction. The feeding end of the feeding pump and the feeding port of the homogenizing equipment are communicated with an inner cavity of the plunger pump through a first high-pressure one-way valve bank and a second high-pressure one-way valve bank respectively, the first high-pressure one-way valve bank is installed in the forward direction, and the second high-pressure one-way valve bank is installed in the reverse direction. The invention provides an ultrahigh-pressure liquid flow mill system which can perform one-way flow control on fluid with particulate matters under the pressure environment of 100 MPA or above.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure slurry homogenization equipment, and specifically to an ultra-high pressure liquid flow mill system. Background Art

[0002] During the industrial preparation process of graphene powder, the homogenization of graphene slurry is extremely important. In order to obtain better homogenization effect, higher slurry pressure is required before homogenization. In the prior art, most pumps that can boost the slurry pressure to above 100 MPA are plunger pump structures. Its basic working principle is to achieve fluid suction and then pressurized pumping out with the reciprocating motion of the piston rod in cooperation with the one-way flow functions of the inlet check valve and the outlet check valve. However, such plunger pump structures were all designed for liquid environments at the beginning, such as the water jet pump for water flow pressurization. The designed performance of the existing ultra-high pressure water jet pump is capable of boosting pure water to more than 100 MPA, and even up to 200 MPA. But when using this existing plunger pump to boost graphene slurry, it cannot meet the pressure requirements. The reason is that: during the reciprocating motion of the check valve of the plunger pump, solid particles contained in the fluid will accumulate at the sealing port of the check valve when reciprocating in and out of the check valve, making it difficult for the check valve to achieve normal sealing. Therefore, the existing plunger pump cannot pressurize the fluid containing solid particles to the same or similar pressure value as that of pure liquid medium. Summary of the Invention

[0003] The present invention aims to at least partly solve one of the technical problems in the related art: to provide an ultra-high pressure liquid flow mill system that can control the one-way flow of fluid with particulate matter under a pressure environment above 100 MPA.

[0004] For this purpose, an object of the present invention is to provide an ultra-high pressure liquid flow mill system, which includes a feeding pump for supplying slurry, a slurry booster pump for boosting pressure, a homogenizing device with an interactive cavity inside, and a condenser for reducing the temperature of the slurry. The feeding pump, the slurry booster pump, the homogenizing device, and the condenser are connected in sequence. The slurry booster pump includes a plunger pump and a plurality of high-pressure one-way valve groups. The high-pressure one-way valve group is at least composed of a plurality of one-way valves connected in series in sequence along the slurry conveying direction. The feeding end of the feeding pump and the feeding port of the homogenizing device are respectively connected to the inner cavity of the plunger pump through a first high-pressure one-way valve group and a second high-pressure one-way valve group. The first high-pressure one-way valve group is installed forward, and the second high-pressure one-way valve group is installed backward. By connecting a plurality of one-way valves in series to form a high-pressure one-way valve group, it can still maintain good overall sealing performance during the process of transporting fluids containing particulate matter in a high-pressure environment. In addition, the plurality of one-way valves are directly fixedly connected to each other, so the structure is more compact, the fluid conveying path is shortened, the pressure loss is reduced. At the same time, the direct fixed connection method eliminates the setting of the intermediate high-pressure pipe, resulting in a small leakage probability with fewer interfaces, a smaller occupied volume, and a lower overall equipment cost.

[0005] According to an example of the present invention, there are a plurality of plunger pumps. The first high-pressure one-way valve groups corresponding to each plunger pump are connected to the feeding end of the feeding pump through a multi-way joint, and the second high-pressure one-way valve groups on each plunger pump are connected to the feeding port of the homogenizing device through a multi-way joint.

[0006] According to an example of the present invention, there are two plunger pumps, and the multi-way joint is a three-way joint.

[0007] According to an example of the present invention, it further includes an accumulator, and the accumulator is connected to the connecting pipeline between the plunger pump and the homogenizing device.

[0008] According to an example of the present invention, the one-way valve in the high-pressure one-way valve group includes a valve body with an inlet and an outlet at both ends respectively. There is a flow channel communicating the inlet and the outlet inside the valve body, and a valve core assembly that allows the fluid to flow only towards the position of the outlet is provided in this flow channel. The inlets and outlets of any two adjacent one-way valves are directly fixedly connected in a detachable manner and communicate with each other.

[0009] According to an example of the present invention, there is an accommodation cavity in the flow channel of the valve body. The spool assembly includes a thrust spring, a spool block, a dynamic seal, and a static seal arranged in sequence. The spool block is loaded into the accommodation cavity through the bottom position of the inlet and is slidably matched with the accommodation cavity. The thrust spring is located on the side of the spool block close to the outlet, the dynamic seal is located on the other side of the spool block, the static seal is arranged in the inlet, and the outlet of the previous one-way valve abuts against the static seal in the inlet so that the static seal is closely attached to the bottom of the inlet. There is a central through hole in the static seal, and the outlet of the previous one-way valve is communicated with the central through hole. The spool block drives the dynamic seal to reciprocate, so that the dynamic seal closes the central through hole of the static seal or the dynamic seal disengages from the static seal to form an interval channel for fluid to pass through. The inlets and outlets of adjacent one-way valves are directly communicated. The entire flow channel thus formed can effectively bear a high-pressure environment, especially capable of withstanding a fluid pressure exceeding 100 MPA. At the same time, since there are multiple one-way valves in the high-pressure one-way valve group, the overall sealing performance is improved, and the control effect of the one-way flow of the fluid is good.

[0010] According to an example of the present invention, the dynamic seal is a sphere, and the spool block has an installation groove for accommodating the dynamic seal. The central through hole is located at the orifice position on the end face of the static seal corresponding to the dynamic seal, and the hardness of the dynamic seal is greater than that of the static seal. After the dynamic seal abuts against the static seal, due to the difference in hardness between the two, the orifice position of the static seal can be compressed and deformed by the dynamic seal to match the contact surface of the dynamic seal, improving the sealing performance.

[0011] According to an example of the present invention, the dynamic seal of the first one-way valve is a block structure. The dynamic seal and the static seal have matching conical surfaces, and a sealing ring is provided on the conical surface of the dynamic seal; the dynamic seals of the remaining one-way valves are all spheres. The dynamic seal of the first one-way valve adopts a block structure, and the combination of the conical surface and the sealing ring makes it have better sealing performance. The dynamic seals of the subsequent remaining one-way valves adopt spherical shapes, so they can have better pressure-bearing capacity. The combined use of the two types of one-way valves improves the overall sealing performance and pressure-bearing capacity, so that it can be used in fluid boosting equipment in a higher-pressure environment to boost fluids containing solid particles.

[0012] According to an example of the present invention, the outlet of the first one-way valve of any two adjacent one-way valves is provided with a protruding column protruding outward along the axial direction, and the protruding column is configured to allow insertion into the inlet of the corresponding second one-way valve and to be fixed and sealed with the inner side wall of the inlet, the outlet of the first one-way valve is located on the protruding column and is connected with the inlet of the second one-way valve, the inlet of the first one-way valve is provided with an inlet joint, and the inlet joint is provided with a plug having the same structure as the protruding column, the inlet interface has a liquid inlet channel connected with the inlet of the first one-way valve, and the plug of the inlet joint abuts against the static seal in the valve body. The protruding column can not only realize a direct fixed connection between the protruding column and the inlet of another adjacent one-way valve, but also the protruding column can squeeze the static seal in the inlet, and synchronously complete the fixation of the static seal.

[0013] According to an example of the present invention, the high-pressure one-way valve group further includes a cylindrical shell, the front end of the shell has a slurry total outlet, the rear end has a mounting port, each one-way valve is sequentially installed in the shell through the mounting port, the mounting port is provided with a detachable mounting base, the mounting base pushes each one-way valve to fit tightly in the shell, the mounting base has a slurry total inlet connected to the inlet of the first one-way valve. The setting of the shell enables multiple one-way valves to complete the communication between the inlet and outlet of adjacent one-way valves in a mutually abutting manner, eliminating the setting of connecting components between the inlet and outlet, and having higher reliability.

[0014] The above technical solution has the following advantages or beneficial effects: firstly, a plurality of one-way valves are connected in series to form a high-pressure one-way valve group, which has better sealing performance than a single one-way valve, and can therefore be applied to pressurizing equipment for high-pressure fluids containing solid particles, especially to plunger pumps for graphene slurries exceeding 100MPA; secondly, the inlet and outlet of two adjacent one-way valves are directly fixedly connected, which reduces the overall length of the pipeline and eliminates the use of high-pressure pipes, so that the pressure loss of the high-pressure fluid flowing between the one-way valves is small, and the overall equipment is simple and convenient to operate. The cost is low and the chance of leakage is smaller; secondly, the dynamic seal of the first one-way valve adopts a block structure with a sealing ring to have better sealing performance, while the dynamic seals of the other one-way valves adopt a spherical structure, which has a higher pressure-bearing capacity. The combination of the two makes the overall sealing performance and pressure-bearing capacity take into account; finally, multiple one-way valves are installed through the outer shell, so that two adjacent one-way valves can be directly connected by abutting against each other, avoiding the need to set additional connecting components between the inlets and outlets of the two one-way valves, and the overall structure is more solid and the sealing performance is better.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the ultra-high pressure liquid flow mill system of the present invention.

[0017] Figure 2 is Figure 1 a schematic internal structure diagram of the medium-high pressure one-way valve group.

[0018] Figure 3 is Figure 2 a schematic structural diagram of each one-way valve disassembled in it.

[0019] Figure 4 is Figure 3 a partial enlarged schematic diagram of the "A" area in it.

[0020] Figure 5 is Figure 3 a partial enlarged schematic diagram of the "B" area in it.

[0021] Figure 6 is Figure 3 a schematic structural diagram of a single one-way valve in it.

[0022] Figure 7 is Figure 1 a schematic structural diagram of the high-pressure one-way valve group in it with a housing.

[0023] Figure 8 is Figure 1 a three-dimensional structural diagram of the homogenizing device and the condenser in it.

[0024] Figure 9 is for Figure 8 a schematic internal structure diagram of the condenser in it.

[0025] Among them, 100, feed pump; 200, slurry booster pump; 201, plunger pump; 202, high-pressure one-way valve group; 202-1, first high-pressure one-way valve group; 202-2, second high-pressure one-way valve group; 203, accumulator; 300, homogenizing device; 400, condenser; 500, distributor; 1, valve body; 2, inlet; 3, outlet; 4, accommodation cavity; 4.1, stepped surface; 5, valve core block; 5.1, installation groove; 6, thrust spring; 7, dynamic seal; 8, static seal; 8.1, central through hole; 9, spacer channel; 10, clearance space; 11, connection channel; 12, sealing ring; 13, convex column; 13.1, arc surface; 14, inlet joint; 14.1, liquid inlet channel; 15, plug; 16, outer sealing ring; 17 / 18, detection hole; 19, housing; 19.1, total slurry outlet; 19.2, installation port; 20, installation base; 20.1, total slurry inlet; 21, feed interface; 22, discharge interface; 23, heat exchange cavity; 24, heat exchange tube; 25, injection channel; 26, ejection channel; 27, pressure sensor; 28, pneumatic valve; 29, temperature sensor. Detailed implementation manners

[0026] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0027] The ultra-high pressure liquid flow mill system according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] The fluid in the following text includes but is not limited to graphene slurry.

[0029] The plurality in the following text means two or more.

[0030] The present invention provides an ultra-high pressure liquid flow mill system. As shown in the figure, it includes a feeding pump 100 for providing slurry, a slurry booster pump 200 for boosting the pressure of the slurry, a homogenizing device 300 with an interactive cavity inside, and a condenser 400 for reducing the temperature of the slurry. The feeding pump 100, the slurry booster pump 200, the homogenizing device 300, and the condenser 400 are connected in sequence. The slurry booster pump 200 includes a plunger pump 201 and a plurality of high-pressure one-way valve groups 202. The high-pressure one-way valve group 202 is at least composed of a plurality of one-way valves connected in series in sequence along the slurry conveying direction. The feeding end of the feeding pump 100 and the feeding port of the homogenizing device 300 are respectively communicated with the inner cavity of the plunger pump 201 through a first high-pressure one-way valve group 202-1 and a second high-pressure one-way valve group 202-2. The first high-pressure one-way valve group 202-1 is installed forward, and the second high-pressure one-way valve group 202-2 is installed backward.

[0031] In the above embodiment, the forward installation of the first high-pressure one-way valve group 202-1 means that the slurry pumped out by the feeding pump 100 is allowed to pass through the first high-pressure one-way valve group 202-1 and flow into the slurry booster pump 200. The backward installation of the second high-pressure one-way valve group 202-2 means that the slurry pumped out after being boosted by the slurry booster pump 200 is allowed to pass through the second high-pressure one-way valve group 202-2 and flow towards the homogenizing device 300. Since the structures of the first high-pressure one-way valve group 202-1 and the second high-pressure one-way valve group 202-2 are the same, only the installation orientation of the high-pressure one-way valve group 202 is changed, so it is called the forward installation of the first high-pressure one-way valve group 202-1 and the backward installation of the second high-pressure one-way valve group 202-2.

[0032] Preferably, a plurality of the plunger pumps 201 are provided. The first high-pressure one-way valve groups 202-1 corresponding to the respective plunger pumps 201 are communicated with the feeding end of the feeding pump 100 through a multi-way joint, and the second high-pressure one-way valve groups 202-2 on the respective plunger pumps 201 are communicated with the feeding port of the homogenizing device 300 through a multi-way joint.

[0033] There are two of the plunger pumps 201, and the multi-way joint is a three-way joint. The two plunger pumps 201 are arranged in parallel. The feeding end of the feeding pump 100 is divided into two branches through the three-way joint. The two branches are communicated with the plunger pumps 201 through the first high-pressure one-way valve groups 202-1 corresponding thereto. At the same time, the feeding port of the homogenizing device 300 is divided into two branches through another three-way joint, and the two branches are communicated with the plunger pumps 201 through the second high-pressure one-way valve groups 202-2 corresponding thereto.

[0034] In the above embodiment, as Figure 1 shown, an interface communicating with its inner cavity is provided at the end of the plunger pump 201. The first high-pressure one-way valve group 202-1 and the second high-pressure one-way valve group 202-2 corresponding to the plunger pump 201 are communicated with the interface of the plunger pump 201 through a three-way joint. Or the end of the plunger pump 201 is provided with a feeding port and a discharging port communicating with its inner cavity. The first high-pressure one-way valve group 202-1 is communicated with the feeding port, and the second high-pressure one-way valve group 202-2 is communicated with the discharging port.

[0035] Preferably, the plunger pump 201 includes a pump housing. A piston cavity is provided in the pump housing. A piston and a piston rod are provided in the piston cavity. One end of the piston rod is connected to the piston, and the other end is connected to an external driving motor. The piston divides the piston cavity into a left cavity and a right cavity. Feeding pipes and discharging pipes are respectively provided at both ends of the plunger pump. The first high-pressure one-way valve group 202-1 and the second high-pressure one-way valve group 202-2 are respectively provided on the feeding pipe and the discharging pipe. One ends of the feeding pipe and the discharging pipe are communicated with the corresponding left cavity or right cavity through a three-way joint, and the other ends converge and are communicated with the feeding end of the homogenizing device. In Figure 1 it, each of the two plunger pumps 201 has a left cavity and a right cavity. The discharging pipes corresponding to the two left cavities and the two right cavities converge on the same discharging main pipe and are communicated with the feeding end of the homogenizing device. The feeding pipes corresponding to the two left cavities and the two right cavities converge on the same feeding main pipe and are communicated with the feeding end of the feeding pump 100.

[0036] In the above embodiment, the process of the plunger pump 201 pumping the slurry is to pump the high-pressure slurry alternately in and out at fixed time intervals. Therefore, the high-pressure slurry is pumped in the form of pulses. In order to reduce the pulse fluctuation of the slurry and make the pressure of the high-pressure slurry obtained by the homogenizing device more stable, the improvement of this embodiment lies in that: the slurry booster pump 200 further includes an accumulator 203, and the accumulator 203 is communicated with the connecting pipeline between the plunger pump 201 and the homogenizing device 300. The accumulator 203 can adopt existing commercially available products, so the structure of the accumulator 203 will not be described in detail one by one. It should be understood that an air inlet valve and a discharge valve are provided on the accumulator 203.

[0037] As Figure 1 shown, a pressure sensor 27 and a pneumatic valve 28 for detecting the pressure of the slurry in the connecting pipeline are provided on the connecting pipeline between the slurry booster pump 200 and the homogenizing device 300.

[0038] The check valve in the high-pressure check valve group 202 includes a valve body 1 having an inlet 2 and an outlet 3 at both ends respectively. A flow channel communicating the inlet 2 and the outlet 3 is provided in the valve body 1, and a valve core assembly is provided in the flow channel to make the fluid flow only toward the position where the outlet 3 is located. The inlets 2 and outlets 3 in any two adjacent check valves are directly fixedly connected in a detachable manner and communicate with each other.

[0039] The series connection in this embodiment means that the outlet 3 of the previous check valve in the high-pressure check valve group 202 is connected to the inlet 2 of the next check valve, and so on, so that all the check valves form a conveying channel for fluid flow. At this time, any check valve is connected in series with the adjacent check valve.

[0040] The direct fixed connection in this embodiment means that when the outlet 3 of the previous check valve is connected to the inlet 2 of the next check valve, the valve bodies 1 of the two check valves are directly connected without being communicated through a high-pressure pipe. This method not only shortens the overall path length, reduces the pressure loss during fluid transportation and reduces the cost, but also reduces the problem of many interfaces brought by the setting of the high-pressure pipe, thereby reducing the leakage points and the probability of leakage, making the operation cost of the overall equipment lower.

[0041] In the above embodiment, the valve core assembly realizes a one-way constraint function, that is, when the fluid flows in from the inlet 2 and flows toward the outlet 3, the valve core assembly is in an open state, so that the fluid can pass through the valve core assembly smoothly. On the contrary, when the fluid has a tendency to flow back toward the position of the inlet 2, the valve core assembly switches to a closed state, thereby realizing a one-way flow of the fluid in the valve body. Compared with the single one-way valve in the plunger pump in the prior art, the high-pressure one-way valve group 202 composed of multiple one-way valves in this embodiment can directly replace the structure of a single one-way valve in the existing plunger pump. By connecting multiple one-way valves in series in the high-pressure one-way valve group 202, the sealing problem is effectively solved. In addition, compared with a single one-way valve, multiple one-way valves can share the pressure after being connected in series, and the pressure borne by each one-way valve will be reduced, so that the life of the one-way valve is longer.

[0042] Based on the preferred embodiment above, the flow channel of the valve body 1 has a receiving cavity 4, such as Figures 2 - 3 As shown, the left end of the accommodating chamber 4 is connected with the outlet 3, and the inner diameter of the outlet 3 at the connection point is smaller than the inner diameter of the accommodating chamber 4, thereby forming a step surface 4.1 at the left end of the accommodating chamber 4, and the right end of the accommodating chamber 4 is located at the groove bottom position of the inlet 2, and the inner diameter of the inlet 2 is larger than the inner diameter of the accommodating chamber 4. The valve core assembly includes a thrust spring 6, a valve core block 5, a dynamic seal 7 and a static seal 8 arranged in sequence, and the valve core block 5 is installed in the accommodating chamber 4 through the groove bottom position of the inlet 2 and slidably cooperates with the accommodating chamber 4. The thrust spring 6 is located on the side of the valve core block 5 close to the outlet 3, and the two ends of the thrust spring 6 are respectively against the step surface 4.1 and the valve core block 5, and the dynamic seal 7 is located on the other side of the valve core block 5. On one side, a static seal 8 is arranged in the inlet 2, and the outlet 3 in the previous one-way valve is against the static seal 8 in the inlet 2, so that the static seal 8 is tightly attached to the bottom of the groove of the inlet 2, and the static seal 8 has a central through hole 8.1, and the outlet 3 in the previous one-way valve is connected to the central through hole 8.1. The action of the fluid in the flow channel on the valve core block 5 drives the valve core block 5 to reciprocate along the axial direction of the accommodating chamber 4, and the valve core block 5 drives the dynamic seal 7 on the right end of the valve core block 5 to reciprocate synchronously, so that the dynamic seal 7 closes the central through hole 8.1 of the static seal 8 or the dynamic seal 7 is disengaged from the static seal 8 to form a spacing channel 9 for fluid to pass through. That is, when the valve core block 5 drives the dynamic seal 7 to move rightward, the dynamic seal 7 abuts against the static seal 8 and blocks the central through hole 8.1 of the static seal 8, thereby achieving the effect of closing the central through hole 8.1; when the valve core block 5 drives the dynamic seal 7 to move leftward, the dynamic seal 7 moves away from the static seal 8, so that a spacing channel 9 for fluid to pass through is reserved between the dynamic seal 7 and the static seal 8.

[0043] Based on the preference of the above embodiment, the dynamic seal 7 is a sphere, and the valve core block 5 is provided with a mounting groove 5 . 1 for accommodating the dynamic seal 7 .

[0044] Furthermore, the orifice position of the central through-hole 8.1 on the end face of the static seal 8 corresponds to the dynamic seal 7, and the hardness of the dynamic seal 7 is greater than that of the static seal 8. As Figure 4 shown, a sharp annular edge is formed at the connection between the inner wall of the central through-hole 8.1 and the left end face of the static seal 8. When the dynamic seal 7 moves rightward and abuts against the annular edge, due to the high hardness of the dynamic seal 7, the annular edge can be driven to deform, and the deformed annular edge fits the outer contour of the dynamic seal 7, thereby further improving the sealing effect.

[0045] Specifically, the dynamic seal 7 is made of ceramic material, and its Rockwell hardness value is HRC90-100. The static seal 8 is made of 630 stainless steel, and its Rockwell hardness value is HRC30-36.

[0046] As Figure 3 shown, when the valve core block 5 drives the dynamic seal 7 to move leftward and is in the open state, the fluid needs to further flow out towards the outlet 3 on the left side of the valve body 1 after passing through the spacer channel 9. Therefore, in order to construct the flow channel between the spacer channel 9 and the outlet 3, the improvement of this embodiment is that: a gap space 10 for the fluid to pass through is left between the valve core block 5 and the accommodation cavity 4, and a connection channel 11 is provided in the valve core block 5. One end of the connection channel 11 is communicated with the gap space 10, and the other end penetrates through the left end face of the valve core block 5 and is communicated with the outlet 3.

[0047] As Figures 2 - 5 shown, preferably, the dynamic seal 7 in the first check valve of the high-pressure check valve group 202 is a block structure. As Figure 5 shown, the dynamic seal 7 has a conical surface, the static seal 8 has a conical surface matching the conical surface on the dynamic seal 7, and an O-ring 12 is provided on the conical surface of the dynamic seal 7; the dynamic seals 7 in the remaining check valves are all spheres. In this embodiment, the O-ring 12 is an O-ring 12. The use of the block-structured dynamic seal 7 in cooperation with the O-ring 12 makes the sealing performance between the dynamic seal 7 and the static seal 8 better than that of the spherical-structured dynamic seal 7. Even if there are a small amount of graphene particles attached to the seal, it can be sealed through the elasticity of the seal and the O-ring 12, but its pressure-bearing capacity is weak and its service life is short, and it is easy to wear after multiple uses. The spherical-structured dynamic seal 7 has a strong pressure-bearing capacity. Therefore, in this embodiment, the dynamic seal 7 in the first check valve adopts a block structure to ensure the sealing performance, while the remaining check valves adopt a spherical dynamic seal 7 structure, so that the overall pressure-bearing performance is high and the equipment operation is more reliable.

[0048] Preferably, the dynamic seal 7 in the first check valve is a block structure, and the dynamic seal 7 and the valve core block 5 are of an integral structure.

[0049] Based on the preference of the above embodiment, a detection hole 17 is provided on the side wall of the valve body 1, and the detection hole communicates with the inlet 2 at the position corresponding to the static seal 8. Through the detection hole 17, it can be detected whether the fluid in the flow channel leaks out through the mating surfaces on both sides of the static seal 8.

[0050] One of the preferred examples of directly fixedly connecting two adjacent one-way valves within the same high-pressure one-way valve group 202 in the above embodiment: As Figure 2 and Figure 3 shown, a convex column 13 protruding axially outward is provided on the outlet 3 of the previous one-way valve among any two adjacent one-way valves. The convex column 13 is arranged to be allowed to be inserted into the inlet 2 of the corresponding subsequent one-way valve and fixedly and sealed with the inner side wall of the inlet 2. The outlet 3 of the previous one-way valve is located on the convex column 13 and communicates with the inlet 2 of the subsequent one-way valve. An inlet joint 14 is provided on the inlet 2 of the first one-way valve. A plug 15 having the same structure as the convex column 13 is provided on the inlet joint 14. A liquid inlet channel 14.1 communicating with the inlet 2 of the first one-way valve is provided in the inlet interface 14, and the plug 15 of the inlet joint 14 abuts against the static seal 8 in the valve body 1.

[0051] Preferably, the convex column 13 and the valve body 1 are of an integral structure. The size of the convex column 13 is adapted to the size of the corresponding inlet 2.

[0052] Specifically, an external thread is provided on the outer side wall of the convex column 13, and an internal thread is provided on the inner side wall of the inlet 2. When the convex column 13 is inserted into the corresponding inlet 2, the outer side wall of the convex column 13 is thread-fixed with the inner side wall of the inlet 2, and the connection is sealed.

[0053] Based on the preference of the above embodiment, as Figure 4 shown, the end face of the convex column 13 is an outwardly convex arc surface 13.1. Specifically, the right end face of the static seal 8 is a plane, and the arc surface 13.1 of the convex column 13 abuts against the right end face of the static seal 8, whereby the contact mode between the two is line contact, improving the sealing effect.

[0054] Based on the preference of the above embodiment, as Figure 5 shown, the end face of the plug 15 that abuts against the static seal 8 has an arc surface having the same structure as the arc surface 13.1 on the convex column 13, that is, the end of the plug 15 located in the inlet of the first one-way valve has an outwardly convex arc surface 13.1 for abutting against the static seal 8. Specifically, the right end face of the static seal 8 in the first one-way valve is a plane, and the arc surface on the plug 15 abuts against the right end face of the static seal 8, whereby the contact mode between the two is line contact, improving the sealing effect.

[0055] The second preferred example of the direct fixed connection between two adjacent one-way valves in the above embodiments: As Figure 7 shown, the high-pressure one-way valve group 202 of this embodiment further includes a cylindrical outer shell 19. The front end of the outer shell 19 has a total slurry outlet 19.1, and the rear end has an installation port 19.2. Each one-way valve is sequentially installed into the outer shell 19 through the installation port 19.2. A detachable installation base 20 is provided on the installation port 19.2. The installation base 20 pushes each one-way valve to be tightly fitted in the outer shell 19. The installation base 20 has a total slurry inlet 20.1 that communicates with the inlet 2 of the first one-way valve.

[0056] Specifically, the installation base 20 is threadedly connected to the installation hole 19.2. As the installation base 20 is rotated and tightened, the installation base 20 axially presses inward on the first one-way valve to move inward until all the one-way valves are clamped between the installation base 20 and the left end face of the inner cavity of the outer shell 19. As Figure 7 shown, the installation base 20 abuts against the static seal 8 in the first one-way valve, and the static seal 8 abuts against the position of the inlet 2 at the right end of the valve body 1.

[0057] Preferably, the static seal 8 of the latter one-way valve in any two adjacent one-way valves is fixedly connected to the valve body 1 of the former one-way valve, and the central through hole 8.1 of the static seal 8 communicates with the outlet 3 of the former one-way valve. Specifically, the static seal 8 and the valve body 1 of the former one-way valve are of an integral structure.

[0058] Preferably, an outer sealing ring 16 is provided on the outer side wall of the valve body 1 to seal the gap between the inner side wall of the outer shell 19 and the outer side wall of the valve body 1.

[0059] Preferably, the outer side wall of the outer shell 19 has a plurality of detection holes 18 communicating with the inner cavity of the outer shell 19. The plurality of detection holes 18 communicate with the space between any two adjacent one-way valves and the space between the installation base 20 and the first one-way valve. Through the detection holes 18, it can be detected whether there is leakage of the fluid in the flow channel.

[0060] As Figure 2 and Figure 7 shown, preferably, there are three one-way valves in the high-pressure one-way valve group 202. The fluid direction of this fluid is from right to left. The rightmost one-way valve among the three one-way valves is the first one-way valve, and the second one-way valve and the last one-way valve are arranged in sequence from left to right. It should be understood that the outlet of the last one-way valve does not need to match the inlet of the next one-way valve, Figure 2 nor does a convex column 13 need to be added to the outlet of the last one-way valve in

[0061] Figure 8 and Figure 9 As shown in Figure 9 , the homogenizing device 300 is a homogenizing valve. An interaction cavity is provided inside the homogenizing valve. A distributor 500 is provided in the connecting pipeline between the homogenizing valve 300 and the slurry booster pump 200.

[0062] The distributor 500 has a feed interface 21 and at least two discharge interfaces 22. Each discharge interface 22 communicates with the feed interface 21 to form a multi-way pipe structure. The feed interface 21 communicates with the discharge end of the slurry booster pump 200. Thus, the distributor 500 can be used to divert the high-pressure slurry pumped out by the slurry booster pump 200 from the feed interface 21 to each discharge interface 22. The homogenizing device 300 includes a valve block. An interaction cavity is provided inside the valve block. A plurality of injection channels 25 are provided on the valve body around the valve body, and an ejection channel 26 communicates with the interaction cavity and is used for discharging the slurry in the interaction cavity. Each injection channel communicates with the corresponding discharge interface 22 on the distributor 500. A condenser 400 is arranged on the slurry pipeline connected to the ejection channel 26 and is used to cool the slurry flowing out of the ejection channel 26.

[0063] As a preferred example of this embodiment: The distributor 500 is a four-way pipe. The four-way pipe includes a feed interface 21 and three discharge interfaces 22. The feed interface 21 is arranged vertically, and the three discharge interfaces 22 are evenly arranged circumferentially along the center line of the feed interface 21.

[0064] As a preferred example of this embodiment: The heat exchanger 400 includes a heat exchange cavity 23 and heat exchange tubes 24. A heat-conducting medium is provided in the heat exchange cavity 23. The middle part of the heat exchange tube 24 is placed in the heat exchange cavity 23, and one end of the heat exchange tube 24 communicates with the ejection channel 26, and the other end is exposed outside the heat exchange cavity 23. Specifically, the heat-conducting medium can be water or various existing heat-conducting fluids. A refrigerant inlet and a refrigerant outlet communicating with the heat exchange cavity 23 are provided on the outer side wall of the heat exchange cavity 23.

[0065] Preferably, a temperature sensor 29 for detecting the temperature of the slurry is provided on the part of the heat exchange tube 24 exposed outside the heat exchange cavity 23 after passing through the heat exchange cavity 23.

[0066] It should be noted here that in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation to the present invention.

[0067] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means more than two unless otherwise specifically defined.

[0068] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0070] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0072] For those skilled in the art, various changes and corrections will undoubtedly be obvious after reading the above description. Therefore, the appended claims should be regarded as covering all changes and corrections that embrace the true intent and scope of the present invention. Any and all equivalent scopes and contents within the scope of the claims should be considered to still fall within the intent and scope of the present invention.

Claims

1. An ultra-high pressure liquid mill system, comprising a feed pump (100) for providing slurry, a slurry booster pump (200) for increasing pressure, a homogenizing device (300) with an internal interactive chamber, and a condenser (400) for reducing the slurry temperature, wherein the feed pump (100), the slurry booster pump (200), the homogenizing device (300) and the condenser (400) are connected in sequence, and characterized in that: The slurry booster pump (200) comprises a plunger pump (201) and a plurality of high-pressure one-way valve groups (202), wherein the high-pressure one-way valve group (202) is composed of at least a plurality of one-way valves connected in series in sequence along the slurry conveying direction, and the feed end of the feed pump (100) and the feed port of the homogenizing device (300) are connected to the inner cavity of the plunger pump (201) through a first high-pressure one-way valve group (202-1) and a second high-pressure one-way valve group (202-2), respectively, wherein the first high-pressure one-way valve group (202-1) is installed in a forward direction, and the second high-pressure one-way valve group (202-2) is installed in a reverse direction.

2. The ultra-high pressure fluid mill system according to claim 1, characterized in that: There are a plurality of plunger pumps (201), and the first high-pressure one-way valve group (202-1) corresponding to each plunger pump (201) is connected to the feed end of the feed pump (100) via a multi-way connector, and the second high-pressure one-way valve group (202-2) on each plunger pump (201) is connected to the feed port of the homogenizing device (300) via a multi-way connector.

3. The ultra-high pressure fluid mill system according to claim 2, characterized in that: There are two plunger pumps (201), and the multi-way connector is a three-way connector.

4. The ultra-high pressure liquid mill system according to any one of claims 1 to 3, characterized in that: It also includes an energy accumulator (203), wherein the energy accumulator (203) is in communication with a connecting pipeline between the plunger pump (201) and the homogenizing device (300).

5. The ultra-high pressure fluid mill system according to claim 1, characterized in that: The one-way valve in the high-pressure one-way valve group (202) comprises a valve body (1) having an inlet (2) and an outlet (3) at two ends respectively, the valve body (1) having a flow channel connecting the inlet (2) and the outlet (3), the flow channel being provided with a valve core assembly that enables the fluid to flow only toward the location of the outlet (3), and the inlet (2) and outlet (3) in any two adjacent one-way valves are directly fixedly connected in a detachable manner and are connected to each other.

6. The ultra-high pressure fluid mill system according to claim 1, characterized in that: The flow passage of the valve body (1) has an accommodating chamber (4), and the valve core assembly comprises a thrust spring (6), a valve core block (5), a dynamic seal (7) and a static seal (8) which are arranged in sequence. The valve core block (5) is inserted into the accommodating chamber (4) through the bottom of the groove of the inlet (2) and is slidably matched with the accommodating chamber (4). The thrust spring (6) is located on one side of the valve core block (5) close to the outlet (3), the dynamic seal (7) is located on the other side of the valve core block (5), and the static seal (8) is arranged in the inlet (2). The outlet of the previous one-way valve is located at the outlet of the valve core block (5). (3) abuts against a static seal (8) in the inlet (2) so that the static seal (8) is in close contact with the groove bottom of the inlet (2); the static seal (8) has a central through hole (8.1) in it, and the outlet (3) in the previous one-way valve is connected to the central through hole (8.1); the valve core block (5) drives the dynamic seal (7) to move back and forth so that the dynamic seal (7) closes the central through hole (8.1) of the static seal (8) or the dynamic seal (7) and the static seal (8) are disengaged to form a spacing channel (9) for fluid to pass through.

7. The ultra-high pressure fluid mill system according to claim 6, characterized in that: The dynamic seal (7) is a sphere, the valve core block (5) has a mounting groove (5.1) for accommodating the dynamic seal (7), the central through hole (8.1) is located at an orifice position on the end surface of the static seal (8) corresponding to the dynamic seal (7), and the hardness of the dynamic seal (7) is greater than that of the static seal (8).

8. The ultra-high pressure fluid mill system according to claim 6, characterized in that: The dynamic seal (7) in the first one-way valve is a block-shaped structure. The dynamic seal (7) and the static seal (8) have matching conical surfaces, and a sealing ring (12) is provided on the conical surface of the dynamic seal (7). The dynamic seals (7) in the other one-way valves are all spherical.

9. The ultra-high pressure fluid mill system according to any one of claims 6 to 8, characterized in that: The outlet (3) of the first one-way valve of any two adjacent one-way valves is provided with a protruding column (13) protruding outwardly in the axial direction, and the protruding column (13) is arranged to allow insertion into the inlet (2) of the corresponding second one-way valve and to be fixed and sealed to the inner wall of the inlet (2). The outlet (3) of the first one-way valve is located on the protruding column (13) and is connected to the inlet (2) of the second one-way valve. The inlet (2) of the first one-way valve is provided with an inlet connector (14), and the inlet connector (14) is provided with a plug (15) having the same structure as the protruding column (13). The inlet connector (14) has a liquid inlet channel (14.1) connected to the inlet (2) of the first one-way valve, and the plug (15) of the inlet connector (14) abuts against a static seal (8) in the valve body (1).

10. The ultra-high pressure fluid mill system according to any one of claims 6 to 8, characterized in that: The high-pressure one-way valve group (202) further comprises a cylindrical outer shell (19), the front end of the outer shell (19) having a total slurry outlet (19.1), and the rear end having a mounting port (19.2), each one-way valve being sequentially installed into the outer shell (19) through the mounting port (19.2), the mounting port (19.2) being provided with a detachable mounting base (20), the mounting base (20) pushing each one-way valve to fit tightly into the outer shell (19), the mounting base (20) having a total slurry inlet (20.1) connected to the inlet (2) of the first one-way valve.

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