Injection device and injection system

Abstract

The embodiment of the application provides a kind of injection device and injection system, belong to the technical field of injector, injection device includes main channel, first movable piece, first injection channel and second injection channel, first injection channel and second injection channel are extended along first direction, and along second direction arrangement, first injection channel and second injection channel are communicated with main channel, first direction and second direction are different. First movable piece is inserted along second direction in first injection channel and second injection channel, for realizing the injection of first injection channel or second injection channel. The opening size of first injection channel and second injection channel is different. Therefore, the injection device and injection system provided by the embodiment of the application can expand the flow rate range of fluid sprayed by the injection device, so as to expand the application scenarios of the injection device and the injection system.

Description

Technical Field

[0001] This application relates to the field of injector technology, and more particularly to an injection device and injection system. Background Technology

[0002] Fluid jetting devices work by energizing a fluid to create a jet stream at a certain velocity. They can be used in cleaning machines, peeling machines, etching machines, cutting machines, and ejectors, among other applications.

[0003] In related technologies, a fluid jetting device may include a fluid pipe and a jetting head, which are interconnected. Fluid can be input into the flow pipe, and the fluid passes through the fluid pipe and the jetting head in sequence, and is finally ejected from the nozzle of the jetting head.

[0004] However, the fluid velocity range ejected by the aforementioned fluid jetting device is relatively narrow. Summary of the Invention

[0005] In view of at least one of the above-mentioned technical problems, embodiments of this application provide a spraying device and a spraying system that can expand the flow velocity range of the fluid sprayed by the spraying device, thereby broadening the applicable scenarios of the spraying device and the spraying system.

[0006] The embodiments of this application provide the following technical solutions:

[0007] A first aspect of this application provides a spraying device, including a main channel, a first movable member, a first spray channel, and a second spray channel. Both the first and second spray channels extend along a first direction and are arranged along a second direction. Both the first and second spray channels are connected to the main channel, but the first and second directions are different. The first spray channel includes a first extension section and a second extension section that are connected, and the second spray channel includes a third extension section and a fourth extension section that are connected. The first movable member is movably inserted into the first and second spray channels along the second direction. When the spraying device is in a first state, the first and second extension sections are connected, and the first movable member separates the third and fourth extension sections. When the spraying device is in a second state, the third and fourth extension sections are connected, and the first movable member separates the first and second extension sections. The opening sizes of the first and second spray channels are different.

[0008] The spraying device provided in this application embodiment may include a main channel, a first movable member, a first spray channel, and a second spray channel. Both the first and second spray channels extend along a first direction and are arranged along a second direction, and both are connected to the main channel. The first spray channel includes a first extension section and a second extension section that are connected, and the second spray channel includes a third extension section and a fourth extension section that are connected. The first movable member is movably inserted into the first and second spray channels along the second direction. When the spraying device is in a first state, the first and second extension sections are connected, and the first movable member separates the third and fourth extension sections. When the spraying device is in a second state, the third and fourth extension sections are connected, and the first movable member separates the first and second extension sections. The opening sizes of the first and second spray channels are different. With this configuration, the flow velocity range of the fluid ejected from the first injection channel is the first flow velocity range, and the flow velocity range of the fluid ejected from the second injection channel can be the second flow velocity range. Since the opening sizes of the first and second injection channels are different, the first and second flow velocity ranges are at least partially different. The first and second flow velocity ranges can together form a larger flow velocity range, thereby expanding the flow velocity range of the fluid ejected by the injection device and thus broadening the applicable scenarios of the injection device and injection system.

[0009] In one possible implementation, the first movable member includes a first movable portion and a second movable portion connected together. The direction from the first movable portion to the second movable portion is the same as the direction from the first injection channel to the second injection channel. The first movable portion has a through hole. The first movable member is used to move along the direction from the first injection channel to the second injection channel, so that the first movable portion is inserted between the first extension segment and the second extension segment, the through hole connects the first extension segment and the second extension segment, and the second movable portion is inserted between the third extension segment and the fourth extension segment, separating the third extension segment and the fourth extension segment, thus forming a first state. The first movable member is also used to move along the direction from the second injection channel to the first injection channel, so that at least the second movable portion is inserted between the first extension segment and the second extension segment, separating the first extension segment and the second extension segment. The first movable member is located outside the second injection channel, thus forming a second state.

[0010] In one possible implementation, when the spraying device is in the first state, the end of the second movable part that is away from the first movable part is located in the second spraying channel and abuts against the inner wall of the second spraying channel.

[0011] It is possible to have the opening size of the first injection channel smaller than the opening size of the second injection channel.

[0012] It is possible to achieve a ratio of 1.35 to 2.15 between the opening size of the second injection channel and the opening size of the first injection channel.

[0013] In one possible implementation, the device further includes a mating member, a locking elastic member, and a locking ball. The mating member is located on the side of the first injection channel opposite to the second injection channel and is connected to the first injection channel. The mating member has a receiving groove on the side facing the first movable member, and the first movable member covers the opening of the receiving groove. The locking elastic member and the locking ball are both located in the receiving groove, with the locking ball located on the side of the locking elastic member facing the first movable member. The locking elastic member is in a compressed state. The side of the first movable member facing the receiving groove has a locking groove. When the injection device is in a first state or a second state, the locking groove communicates with the receiving groove. The locking elastic member is used to drive the locking ball to move towards the first movable member, so that part of the locking ball is located in the locking groove.

[0014] In one possible implementation, there are two locking slots, including a first locking slot and a second locking slot spaced apart along a second direction. When the spraying device is in a first state, a portion of the locking ball is located in the first locking slot. When the spraying device is in a second state, a portion of the locking ball is located in the second locking slot.

[0015] The injection device includes a first metal seal and a first elastic seal. The outer wall of the first injection channel has a first sealing groove and a second sealing groove. The opening of the second sealing groove is located at the bottom wall of the first sealing groove. The first metal seal is located in the first sealing groove, and the first elastic seal is located in the second sealing groove. A mating part covers the opening of the first sealing groove. The first metal seal, the first elastic seal, the first sealing groove, the second sealing groove, and the mating part are all arranged around the first movable part. The two sides of the first metal seal abut against the mating part and the bottom wall of the first sealing groove, respectively, and the first elastic seal is in a compressed state.

[0016] In one possible implementation, the device further includes a second movable member and a third movable member. The second movable member is connected to the first movable member, and the third movable member is used to move toward or away from the second movable member. The side of the second movable member facing the third movable member has an abutment groove. When the spraying device is in the first or second state, the third movable member is used to move toward the second movable member so that the abutment end of the third movable member is inserted into the abutment groove and abuts against the bottom wall of the abutment groove.

[0017] In one possible implementation, there are two abutment grooves, including a first abutment groove and a second abutment groove spaced apart along a second direction. When the spraying device is in a first state, the abutment end abuts against the bottom wall of the first abutment groove. When the spraying device is in a second state, the abutment end abuts against the bottom wall of the second abutment groove.

[0018] In one possible implementation, the system further includes a cylinder and a piston, both located on the side of the second movable member facing the third movable member. The cylinder has a receiving cavity, and the piston is located within the receiving cavity. The third movable member includes a connecting end located on the side of the abutment end opposite to the second movable member. The connecting end passes through the cylinder and extends into the receiving cavity, while the abutment end is located outside the cylinder. The connecting end is connected to the piston, and both the piston and the third movable member are movably connected to the cylinder along the direction from the third movable member to the second movable member. The cylinder is relatively stationary relative to the first injection channel.

[0019] In one possible implementation, the cylinder body is connected to a main channel, which includes an inlet and an outlet. The inlet communicates with a fluid supply device, and the outlet communicates with a first injection channel and a second injection channel. The main channel has a first opening located between the inlet and the outlet along its extension direction. The cylinder body has a second opening located on the side of the piston away from the second movable member, and the first opening communicates with the second opening.

[0020] It is possible that the injection device includes a reset elastic element, which abuts against the side of the piston facing the second movable element and is in a compressed state.

[0021] It is possible that the injection device includes a second metal seal and a second elastic seal, the cylinder body includes a cylinder barrel and a cylinder head, the cylinder barrel has a cylinder opening at one end facing the second movable member, the cylinder head covers the cylinder opening, the cylinder head, the second metal seal and the second elastic seal are all sleeved on the third movable member, the second metal seal is located between the cylinder head and the cylinder barrel and abuts against the cylinder head and the cylinder barrel, the second elastic seal is located in the accommodating cavity and abuts against the second metal seal, and the second elastic seal is in a compressed state.

[0022] A first aspect of this application provides a jetting system, including: a fluid supply device and the jetting device described in the first aspect above, wherein the fluid supply device is connected to the inlet of the jetting device, and the fluid supply device includes a supercritical fluid supply device.

[0023] The spraying system provided in this application includes a spraying device, which may include a main channel, a first movable member, a first spray channel, and a second spray channel. Both the first and second spray channels extend along a first direction and are arranged along a second direction, and are connected to the main channel. The first spray channel includes a first extension and a second extension, and the second spray channel includes a third extension and a fourth extension, both connected. The first movable member is movably inserted into the first and second spray channels along the second direction. When the spraying device is in a first state, the first and second extensions are connected, and the first movable member separates the third and fourth extensions. When the spraying device is in a second state, the third and fourth extensions are connected, and the first movable member separates the first and second extensions. The opening sizes of the first and second spray channels are different. With this configuration, the flow velocity range of the fluid ejected from the first injection channel is the first flow velocity range, and the flow velocity range of the fluid ejected from the second injection channel can be the second flow velocity range. Since the opening sizes of the first and second injection channels are different, the first and second flow velocity ranges are at least partially different. The first and second flow velocity ranges can together form a larger flow velocity range, thereby expanding the flow velocity range of the fluid ejected by the injection device and thus broadening the applicable scenarios of the injection device and injection system.

[0024] The structure of this application, as well as its other inventive objectives and beneficial effects, will become more apparent from the description of the preferred embodiments taken in conjunction with the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A cross-sectional view of the spraying device provided in an embodiment of this application in a first state;

[0027] Figure 2 A cross-sectional view of the spraying device provided in an embodiment of this application in a second state;

[0028] Figure 3 for Figure 1 Sectional view along the middle AA direction;

[0029] Figure 4 A partial enlarged view of the spraying device provided in the embodiments of this application;

[0030] Figure 5This is another partial enlarged view of the spraying device provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100: Injection device; 110: First injection channel;

[0033] 111: First extension; 112: Second extension;

[0034] 120: Second injection channel; 123: Third extension section;

[0035] 124: Fourth extension section; 130: Main passage;

[0036] 131: First opening; 132: Import;

[0037] 133: Export; 141: First moving part;

[0038] 1411: First Activities Department; 1412: Second Activities Department;

[0039] 1413: Through hole; 142: Second moving part;

[0040] 143: Third moving part; 1431: Connecting end;

[0041] 1432: Abutment end; 151: Mating part;

[0042] 1511: Receiving groove; 152: Locking elastic element;

[0043] 153: Lock ball; 161: Lock slot;

[0044] 1611: First locking slot; 1612: Second locking slot;

[0045] 162: Abutment groove; 1621: First abutment groove;

[0046] 1622: Second abutment groove; 1631: First sealing groove;

[0047] 1632: Second sealing groove; 1641: First metal seal;

[0048] 1642: Second metal seal; 1651: First resilient seal;

[0049] 1652: Second elastic seal; 170: Auxiliary channel;

[0050] 181: Cylinder block; 1811: Receptacle chamber;

[0051] 1811a: First accommodating cavity; 1811b: Second accommodating cavity;

[0052] 1812: Cylinder barrel; 1813: Cylinder head;

[0053] 182: Piston; 183: Reset elastic element;

[0054] 1911: First connector; 1912: Second connector;

[0055] 192: Operating component; 193: Connecting plate;

[0056] 194: Assembly components; 210: First launchable component;

[0057] 220: Second launchable component. Detailed Implementation

[0058] In related technologies, a fluid jetting device may include a fluid pipe and a jetting head, which are interconnected. An external fluid supply device is connected to the fluid pipe and can input fluid (i.e., working medium) into the flow pipe. The fluid passes through the fluid pipe and the jetting head in sequence and is finally ejected from the nozzle of the jetting head.

[0059] However, the fluid supply device has limited adjustment of the fluid pressure range. When the fluid within this pressure range is ejected from the nozzle, the velocity range of the ejected fluid corresponds to the pressure range. That is, the velocity range of the ejected fluid is limited by the pressure range of the fluid supplied by the fluid supply device and the size of the nozzle. Since the nozzle has only one nozzle, the ejected fluid has only one velocity range, which makes the velocity range of the fluid ejected from the nozzle narrow.

[0060] Based on at least one of the aforementioned technical problems, embodiments of this application provide a spraying device and a spraying system. The spraying device may include a main channel, a first movable member, a first spray channel, and a second spray channel. Both the first and second spray channels extend along a first direction and are arranged along a second direction, and both are connected to the main channel. The first spray channel includes a first extension section and a second extension section that are connected, and the second spray channel includes a third extension section and a fourth extension section that are connected. The first movable member is movably inserted into the first and second spray channels along the second direction. When the spraying device is in a first state, the first and second extension sections are connected, and the first movable member isolates the third and fourth extension sections; when the spraying device is in a second state, the third and fourth extension sections are connected, and the first movable member isolates the first and second extension sections. The opening sizes of the first and second spray channels are different. With this configuration, the flow velocity range of the fluid ejected from the first injection channel is the first flow velocity range, and the flow velocity range of the fluid ejected from the second injection channel can be the second flow velocity range. Since the opening sizes of the first and second injection channels are different, the first and second flow velocity ranges are at least partially different. The first and second flow velocity ranges can together form a larger flow velocity range, thereby expanding the flow velocity range of the fluid ejected by the injection device and thus broadening the applicable scenarios of the injection device and injection system.

[0061] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0062] The following will combine Figures 1-5 The injection system provided in the embodiments of this application will be described.

[0063] The injection system provided in this application embodiment may include a fluid supply device and an injection device 100, wherein the fluid outlet of the fluid supply device may be connected to the inlet 132 of the injection device 100. Figure 1 The fluid supply device is used to supply fluid to the injection device 100 and to eject the fluid through the injection device 100. For example, the fluid supply device may include a gas supply device, a liquid supply device, or a supercritical fluid supply device.

[0064] This application uses a supercritical fluid supply device as an example for illustration. The supercritical fluid supply device can be used to provide supercritical fluid. When supercritical fluid (high pressure) is used as the working medium, it can establish working pressure for the injection device 100 in a shorter time. The injection device 100 has advantages such as short response time.

[0065] Supercritical fluid (SCF) refers to fluids whose temperature and pressure are both above their critical point, such as supercritical carbon dioxide, supercritical ammonia, supercritical ethylene, supercritical propane, and supercritical propylene. Fluids in the supercritical state are easily diffused and possess high density characteristics similar to liquids and low viscosity characteristics similar to gases. Furthermore, when a supercritical fluid undergoes decompression (and / or decooling) to transform into a gaseous state, its volume expands rapidly. This application uses supercritical carbon dioxide as an example for illustration. Supercritical carbon dioxide is non-toxic and harmless, reducing adverse effects on the environment and construction workers.

[0066] For example, the spraying device 100 may include a cleaning machine, a peeling machine, an etching machine, a cutting machine, and a launcher (e.g., an impulse launcher). This application embodiment uses the spraying device 100 as an example of a launcher. The launcher can be used to launch a component to be launched.

[0067] The following describes the spraying device 100 provided in the embodiments of this application.

[0068] See Figure 1 The injection device 100 provided in this application embodiment may include a main channel 130, a first injection channel 110, and a second injection channel 120, both of which can communicate with the main channel 130. The main channel 130 may include an inlet 132 and an outlet 133. The inlet 132 is used to communicate with a fluid supply device, and the outlet 133 can communicate with the first injection channel 110 and the second injection channel 120. The inlet 132 and the outlet 133 can be openings at both ends of the main channel 130 in its extending direction. The main channel 130 can be straight, curved, or other shapes.

[0069] For example, see Figure 1 Both the first injection channel 110 and the second injection channel 120 can be along the first direction X (i.e., Figure 1 The first injection channel 110 and the second injection channel 120 can extend along the second direction Y (i.e., the horizontal direction of the middle), and extend along the horizontal direction of the middle, ... Figure 1The first direction (X) and the second direction (Y) are arranged vertically. The first direction X and the second direction Y can be different; they can intersect at an angle or be perpendicular to each other. For example, the first injection channel 110 can be located at the top of the second injection channel 120. The first injection channel 110 may include a first extension segment 111 and a second extension segment 112 arranged and connected along the first direction X, and the main channel 130 may sequentially connect the first extension segment 111 and the second extension segment 112. The second injection channel 120 may include a third extension segment 123 and a fourth extension segment 124 arranged and connected along the first direction X, and the main channel 130 may sequentially connect the third extension segment 123 and the fourth extension segment 124.

[0070] For example, see Figure 1 The channel wall of the first injection channel 110 facing the second injection channel 120 can be connected to the channel wall of the second injection channel 120 facing the first injection channel 110. For example, the channel wall of the first injection channel 110 facing the second injection channel 120 and the channel wall of the second injection channel 120 facing the first injection channel 110 can be an integral structure.

[0071] For example, see Figure 1 and Figure 2 The spraying device 100 may include a first movable member 141, which is movably inserted into the first spray channel 110 and the second spray channel 120 along the second direction Y. The spraying device 100 may include a first state and a second state. When the spraying device 100 is in the first state, it can spray fluid through the first spray channel 110. When the spraying device 100 is in the second state, it can spray fluid through the second spray channel 120. When the first movable member 141 reciprocates in the second direction Y, the spraying device 100 switches between the first state and the second state, thereby selecting either the first spray channel 110 or the second spray channel 120 for fluid spraying. See also... Figure 1 When the injection device 100 is in the first state, the first extension 111 and the second extension 112 are connected, and the first movable member 141 isolates the third extension 123 and the fourth extension 124. (See also...) Figure 2 When the injection device 100 is in the second state, the third extension section 123 and the fourth extension section 124 are connected, and the first movable member 141 isolates the first extension section 111 and the second extension section 112.

[0072] For example, see Figure 1The opening sizes of the first injection channel 110 and the second injection channel 120 can be different. With this configuration, the flow velocity range of the fluid ejected from the first injection channel 110 can be a first flow velocity range, and the flow velocity range of the fluid ejected from the second injection channel 120 can be a second flow velocity range. Because the opening sizes of the first injection channel 110 and the second injection channel 120 are different, the first flow velocity range and the second flow velocity range are at least partially different. The first flow velocity range and the second flow velocity range can together form a larger flow velocity range, thereby expanding the flow velocity range of the fluid ejected by the injection device 100, meeting different injection requirements, and broadening the applicable scenarios of the injection device 100 and the injection system.

[0073] In some examples, the opening size of the first injection channel 110 (i.e., the first opening size) can be smaller than the opening size of the second injection channel 120 (i.e., the second opening size). This means the first opening size is smaller than the second opening size, resulting in a smaller weight of the first injection channel 110 and less pressure on the second injection channel 120, which helps protect the second injection channel 120. Additionally, the weight of the first launcher 210 can be set to be smaller, resulting in less pressure on the second injection channel 120, which also helps protect the second injection channel 120. For example, the ratio of the opening size of the second injection channel 120 to the opening size of the first injection channel 110 can be in the range of 1.35-2.15. This avoids the difference between the first and second opening sizes being too small, preventing a small difference in the flow velocity range of the fluid ejected from the first injection channel 110 and the fluid ejected from the second injection channel 120. Furthermore, it also avoids the difference between the first and second opening sizes being too large, preventing an excessively large opening size of the second injection channel 120 and thus increasing the manufacturing difficulty of the second injection channel 120. For example, the ratio can be 1.35, 1.55, 1.75, 1.95, 2.15, or any value between 1.35 and 2.15. In other examples, the opening size of the first injection channel 110 can be larger than the opening size of the second injection channel 120. This embodiment is illustrated using the example where the opening size of the first injection channel 110 is smaller than the opening size of the second injection channel 120. For example, the opening size of the second injection channel 120 can be smaller than or equal to the opening size of the main channel 130.

[0074] For example, see Figure 1The first injection channel 110 can be used to launch a first launchable component 210, and the second injection channel 120 can be used to launch a second launchable component 220. After the first injection channel 110 is filled with high-pressure fluid, the first launchable component 210 generates an initial velocity and is launched from the first injection channel 110. After the second injection channel 120 is filled with high-pressure fluid, the second launchable component 220 generates an initial velocity and is launched from the second injection channel 120. For example, the launch velocity of the first launchable component 210 can be greater than the launch velocity of the second launchable component 220.

[0075] For example, an auxiliary channel 170 may be provided between the main channel 130 and the first injection channel 110 and the second injection channel 120. The auxiliary channel 170 can be used for communication between the main channel 130 and the first injection channel 110 and the second injection channel 120. The auxiliary channel 170 can fully mix the fluid. A connecting plate 193 may be provided on the side of the auxiliary channel 170 facing the main channel 130. The connecting plate 193 has an opening that communicates with the outlet 133 of the main channel 130. The main channel 130 and the connecting plate 193 can be welded together.

[0076] For example, an annular fitting 194 may be provided at the inlet 132 of the main channel 130, and the fitting 194 may be welded to the main channel 130. The fitting 194 can be used to connect with other structural components. For example, the fitting 194 may be a flange.

[0077] The first active component 141 provided in the embodiments of this application will be described below.

[0078] For example, see Figure 1 and Figure 3 The first movable member 141 may include a first movable portion 1411 and a second movable portion 1412 connected together. The direction from the first movable portion 1411 to the second movable portion 1412 may be the same as the direction from the first injection channel 110 to the second injection channel 120. For example, the first movable portion 1411 may be located on top of the second movable portion 1412. The first movable portion 1411 may have a through hole 1413.

[0079] For example, see Figure 1 The first movable member 141 can be used to move along the direction from the first injection channel 110 to the second injection channel 120 (i.e., Figure 1The first movable part 1411 is inserted between the first extension section 111 and the second extension section 112, and the through hole 1413 connects the first extension section 111 and the second extension section 112. In addition, the second movable part 1412 can be inserted between the third extension section 123 and the fourth extension section 124, and the second movable part 1412 separates the third extension section 123 and the fourth extension section 124, forming the first state of the spraying device 100, thereby launching the first launcher 210 through the first spraying channel 110.

[0080] For example, see Figure 2 The first movable member 141 can be used to move along the direction from the second injection channel 120 to the first injection channel 110 (i.e., Figure 2 The first movable member 141 moves from bottom to top, so that the second movable part 1412 is inserted between the first extension 111 and the second extension 112, and the second movable part 1412 at least blocks the first extension 111 and the second extension 112. Additionally, the first movable member 141 can be positioned outside the second injection channel 120, so that the third extension 123 and the fourth extension 124 are in a connected state, forming the second state of the injection device 100, thereby launching the second launcher 220 through the second injection channel 120. In embodiments where the size of the first opening 131 is smaller than the size of the second opening, when the first movable member 141 moves from bottom to top, the second movable part 1412 is inserted between the first extension 111 and the second extension 112, and the second movable part 1412 blocks the first extension 111 and the second extension 112. In an embodiment where the size of the first opening 131 is larger than the size of the second opening, when the first movable member 141 moves from bottom to top, a portion of the first movable part 1411 exits the first injection channel 110, and the second movable part 1412 and another portion of the first movable part 1411 are inserted between the first extension section 111 and the second extension section 112, and the first extension section 111 and the second extension section 112 are separated by the second movable part 1412 and the other portion of the first movable part 1411.

[0081] In some examples, when the injection device 100 is in the first state, the end of the second movable part 1412 facing away from the first movable part 1411 can be located on the side of the second injection channel 120 facing away from the first injection channel 110, that is, the first movable member 141 penetrates the two channel walls of the second injection channel 120 that are arranged opposite each other along the second direction Y. In other examples, see Figure 1When the injection device 100 is in the first state, the end of the second movable part 1412 facing away from the first movable part 1411 can be located inside the second injection channel 120, and the end of the second movable part 1412 facing away from the first movable part 1411 can abut against the inner wall of the second injection channel 120. That is, the first movable member 141 only penetrates the channel wall of the second injection channel 120 on the side close to the first injection channel 110, which can help to improve the sealing of the second injection channel 120.

[0082] The second movable element 142 and the third movable element 143 provided in the embodiments of this application will be described below.

[0083] See Figure 1 The spraying device 100 may include a second movable member 142, which can be connected to the first movable member 141 (e.g., by welding). For example, the second movable member 142 may be located on the side of the first movable part 1411 opposite to the second movable part 1412. An operating member 192 (e.g., an operating handle) may be provided on the second movable member 142, and the operating member 192 may be connected to the second movable member 142 by means of threads, snap-fit, welding, etc. The operating member 192 can drive the second movable member 142 to move along the second direction Y, thereby driving the first movable member 141 to move along the second direction Y.

[0084] See Figure 1 The spraying device 100 may include a third movable member 143, which may be disposed opposite to the second movable member 142. For example, they may be disposed opposite to each other along a first direction X. The third movable member 143 may be used to move toward or away from the second movable member 142. When the third movable member 143 moves toward the second movable member 142 and abuts against the second movable member 142, the third movable member 143 may lock the second movable member 142, thereby locking the position of the first movable member 141 relative to the first spray channel 110 and the second spray channel 120. When the third movable member 143 moves away from the second movable member 142 and is spaced apart from the second movable member 142, the third movable member 143 and the second movable member 142 are unlocked, allowing the operating member 192 to drive the second movable member 142 to move along the second direction Y. The third movable member 143 may include an abutting end 1432 and a connecting end 1431, wherein the connecting end 1431 may be located on the side of the abutting end 1432 opposite to the second movable member 142. The abutting end 1432 may be used to abut against the second movable member 142.

[0085] For example, see Figure 1 and Figure 4The second movable member 142 may have an abutment groove 162 on the side facing the third movable member 143. When the spraying device 100 is in the first or second state, the third movable member 143 can be moved towards the second movable member 142 so that the abutment end 1432 is inserted into the abutment groove 162, and the abutment end 1432 can abut against the bottom wall of the abutment groove 162. Through the cooperation of the abutment end 1432 and the abutment groove 162, the positions of the second movable member 142 and the first movable member 141 relative to the first spray channel 110 and the second spray channel 120 are locked.

[0086] For example, see Figure 1 and Figure 4 The number of abutment grooves 162 can be two. The two abutment grooves 162 can include a first abutment groove 1621 and a second abutment groove 1622 spaced apart along the second direction Y. The first abutment groove 1621 can be located on the side of the second abutment groove 1622 opposite to the first movable member 141. When the spraying device 100 is in the first state, the abutment end 1432 can abut against the bottom wall of the first abutment groove 1621. When the spraying device 100 is in the second state, the abutment end 1432 abuts against the bottom wall of the second abutment groove 1622. This allows the spraying device 100 to lock the positions of the second movable member 142 and the first movable member 141 relative to the first spray channel 110 and the second spray channel 120 in different states, thereby improving the reliability of the spraying device 100 in high-pressure working environments.

[0087] For example, see Figure 1 and Figure 4The injection device 100 may include a cylinder 181 and a piston 182, both of which may be located on the side of the second movable member 142 facing the third movable member 143. The cylinder 181 may have a receiving cavity 1811, and the piston 182 may be located within the receiving cavity 1811. A clearance fit may be made between the piston 182 and the cavity wall of the receiving cavity 1811 to reduce wear between the piston 182 and the cavity wall. A circumferential seal may be provided on the piston 182 to ensure a tight seal between the piston 182 and the cavity wall. A connecting end 1431 may pass through the cylinder 181 and extend into the receiving cavity 1811, while an abutting end 1432 may be located outside the cylinder 181. The connecting end 1431 may be connected to the piston 182. Both the piston 182 and the third movable member 143 are movably connected to the cylinder 181 along the direction from the third movable member 143 to the second movable member 142. The cylinder 181 can be relatively stationary with respect to the first injection channel 110, the second injection channel 120, and the main channel 130. For example, the end of the cylinder 181 facing away from the second movable member 142 can be connected to the main channel 130 (e.g., by welding). By supplying fluid to the accommodating cavity 1811, the piston 182 and the third movable member 143 can be driven to reciprocate along the direction from the third movable member 143 to the second movable member 142.

[0088] For example, see Figure 1 and Figure 4 The main channel 130 may have a first opening 131, which may be located between the inlet 132 and the outlet 133 along the extending direction of the main channel 130. The cylinder body 181 may have a second opening, which may be located on the side of the piston 182 away from the second movable member 142. The first opening 131 and the second opening may communicate. Since the first opening 131 is located between the inlet 132 and the outlet 133, the first opening 131 is closer to the inlet 132 than the outlet 133. After the fluid enters the main channel 130 from the inlet 132, there is a time difference between the fluid reaching the first opening 131 and the outlet 133. The fluid will reach the first opening 131 first and enter the receiving cavity 1811 through the first opening 131 and the second opening, thereby driving the piston 182 and the third movable member 143 to move in the direction from the third movable member 143 to the second movable member 142 (i.e., Figure 1 (Moves from left to right) so that the abutment part abuts against the second movable member 142, thereby achieving automatic locking of the positions of the first movable member 141 and the second movable member 142 relative to the first spray channel 110 and the second spray channel 120 before the fluid reaches the first spray channel 110 and the second spray channel 120.

[0089] For example, see Figure 1 and Figure 4The piston 182 divides the accommodating cavity 1811 into a first accommodating cavity 1811a and a second accommodating cavity 1811b. The first accommodating cavity 1811a is located on the side of the piston 182 facing the third movable member 143, and the connecting end 1431 can extend into the first accommodating cavity 1811a. The second accommodating cavity 1811b can communicate with the first opening 131. When fluid enters the second accommodating cavity 1811b, it can drive the piston 182 to move along the direction from the third movable member 143 to the second movable member 142.

[0090] For example, see Figure 1 and Figure 4 The injection device 100 may include a reset elastic element 183, which may abut against the side of the piston 182 facing the second movable member 142, and may be in a compressed state. The reset elastic element 183 may be located in the first accommodating cavity 1811a. When the second accommodating cavity 1811b is depressurized, the reset elastic element 183 may drive the piston 182 along the direction from the second movable member 142 to the third movable member 143, thereby automatically unlocking and spacing the third movable member 143 from the second movable member 142, achieving automatic reset of the third movable member 143 and simplifying operation. For example, the reset elastic element 183 may include a spring or a sheet spring.

[0091] For example, see Figure 1 and Figure 4The injection device 100 may include a second metal seal 1642 and a second elastic seal 1652. The cylinder block 181 may include a cylinder barrel 1812 and a cylinder head 1813. The end of the cylinder barrel 1812 facing the second movable member 142 may have an opening, and the cylinder head 1813 may cover the opening. The cylinder head 1813 and the cylinder barrel 1812 are connected by a first connector 1911 (e.g., bolts). The cylinder head 1813, the second metal seal 1642, and the second elastic seal 1652 may all be fitted onto the third movable member 143. The second metal seal 1642 can be located between the cylinder head 1813 and the cylinder barrel 1812. After the first connecting member 1911 is tightened, the second metal seal 1642 deforms and abuts against the cylinder head 1813 and the cylinder barrel 1812, thereby achieving a seal between the cylinder head 1813 and the cylinder barrel 1812, and / or a seal between the cylinder head 1813 and the third movable member 143. The second elastic seal 1652 can be located in the accommodating cavity 1811 and abuts against the second metal seal 1642. After the first connecting member 1911 is tightened, the second elastic seal 1652 deforms and is in a compressed state, thereby strengthening the seal between the cylinder head 1813 and the cylinder barrel 1812, and / or strengthening the seal between the cylinder head 1813 and the third movable member 143. In the embodiment with a reset elastic element 183, the reset elastic element 183 can be located between the piston 182 and the second elastic seal 1652. With the cooperation of the reset elastic element 183 and the second metal seal 1642, the second elastic seal 1652 can be in a compressed state. The second metal seal 1642 and the second elastic seal 1652 are connected in series and can form a double seal, giving the injection device 100 better sealing performance. This effectively ensures the sealing performance when the working medium rapidly expands in volume and increases in pressure when it changes from a supercritical state to a gaseous state, avoiding leakage of high-pressure fluid. This is beneficial for increasing the working pressure of the injection device 100, thus making it suitable for high-pressure working conditions of supercritical fluids and ensuring a wide range of reliability, stability, safety, service performance, and firing speed of the injection device 100.

[0092] For example, the other end of the cylinder 1812 opposite to the second movable member 142 can form a second opening, or the other end of the cylinder 1812 opposite to the second movable member 142 can be covered by another cylinder cover, and the other cylinder cover can have a second opening.

[0093] For example, see Figure 1 and Figure 4 When fluid is filled into the injection device 100, the piston 182 can move along the direction from the third movable member 143 to the second movable member 142 (i.e., Figure 1When the injection device 100 is not working due to the absence of fluid inside, the piston 182 can abut against the surface of the main channel 130 facing the second movable member 142 under the action of the reset elastic member 183.

[0094] The locking structure provided in the embodiments of this application will be described below.

[0095] For example, see Figure 1 and Figure 5 The spraying device 100 may include a locking structure, which may include a mating member 151, a locking elastic member 152, and a locking ball 153. The mating member 151 may be located on the side of the first spraying channel 110 opposite to the second spraying channel 120, and may be connected to the outer wall of the first spraying channel 110. For example, the mating member 151 may be connected to the outer wall of the first spraying channel 110 via a second connector 1912 (e.g., a bolt). The mating member 151 may have a receiving groove 1511 on the side facing the first movable member 141, and the first movable member 141 may cover the opening of the receiving groove 1511. Both the locking elastic member 152 and the locking ball 153 may be located in the receiving groove 1511, and the locking ball 153 may be located on the side of the locking elastic member 152 facing the first movable member 141. The locking elastic member 152 may be in a compressed state. The side of the first movable member 141 facing the receiving groove 1511 may have a locking groove 161. When the spraying device 100 is in the first state or the second state, the locking groove 161 may communicate with the receiving groove 1511. The locking elastic member 152 may be used to drive the locking ball 153 to move towards the first movable member 141, so that part of the locking ball 153 may be located in the locking groove 161 and the other part of the locking ball 153 may be located outside the locking groove 161. Thus, through the cooperation of the locking ball 153 and the locking groove 161, the positions of the first movable member 141 and the second movable member 142 relative to the first spray channel 110 and the second spray channel 120 are automatically locked, which improves the working reliability of the spraying device 100 and also ensures the mutual exclusivity of the first spray channel 110 and the second spray channel 120. In the implementation of using a supercritical fluid supply device to adjust the fluid pressure over a wide range, the present application embodiment adopts a mutually exclusive dual injection channel design, and the opening and closing of the two injection channels is controlled by the first movable member 141, which can effectively reduce the sealing difficulty and control difficulty between the supercritical fluid supply device and the injection device 100.

[0096] For example, the locking elastic element 152 may include a spring or a spring sheet, etc.

[0097] For example, see Figure 1 and Figure 5The number of locking slots 161 can be two. The two locking slots 161 can include a first locking slot 1611 and a second locking slot 1612 spaced apart along the second direction Y. The first locking slot 1611 can be located on the side of the second locking slot 1612 facing the second movable member 142. When the spraying device 100 is in the first state, part of the locking ball 153 can be located in the first locking slot 1611; when the spraying device 100 is in the second state, part of the locking ball 153 can be located in the second locking slot 1612, so that the spraying device 100 can automatically lock the positions of the first movable member 141 and the second movable member 142 relative to the first spray channel 110 and the second spray channel 120 in different states.

[0098] Exemplary, exemplary, see Figure 1 and Figure 5 The injection device 100 may include a first metal seal 1641 and a first elastic seal 1651. The outer wall of the first injection channel 110 may have a first sealing groove 1631 and a second sealing groove 1632. The opening of the second sealing groove 1632 may be located at the bottom wall of the first sealing groove 1631. The first metal seal 1641 may be located in the first sealing groove 1631, and the first elastic seal 1651 may be located in the second sealing groove 1632. The mating part 151 may cover the opening of the first sealing groove 1631. The first metal seal 1641, the first elastic seal 1651, the first sealing groove 1631, the second sealing groove 1632, and the mating part 151 can all be arranged around the first movable part 141. The two sides of the first metal seal 1641 abut against the bottom walls of the mating part 151 and the first sealing groove 1631, respectively, thereby achieving a seal between the mating part 151 and the first injection channel 110, and between the first movable part 141 and the first injection channel 110. The first elastic seal 1651 can be in a compressed state, thereby strengthening the seal between the mating part 151 and the first injection channel 110, and between the first movable part 141 and the first injection channel 110. The first metal seal 1641 and the first elastic seal 1651 are connected in series and can form a double-layer seal to ensure the airtightness of the channel wall of the first injection channel 110. The principle has been explained and will not be repeated here.

[0099] For example, see Figure 1 The spraying process of the first spray channel 110 can be as follows: by controlling the operating member 192 to move from top to bottom, the second movable member 142 and the first movable member 141 are sequentially driven to move from top to bottom. When the locking ball 153 enters the first locking groove 1611 ( Figure 5When the first movable member 141 is locked, the accuracy of its position is ensured. At this time, the first movable member 141 blocks the third extension section 123 and the fourth extension section 124, while the first extension section 111 and the second extension section 112 are in a connected state. Fluid is introduced into the main channel 130 and flows into the cylinder 181, pushing the piston 182 to move from left to right until the right end of the third movable member 143 and the first abutment groove 1621 of the second movable member 142 are engaged. Figure 4 The fluid abuts against the bottom wall of the groove, locking the second movable part 142; then, the fluid continues to move along the main channel 130 towards the first injection channel 110; finally, the fluid contacts the first launcher 210 and pushes the first launcher 210 to move, achieving the injection purpose. After the injection device 100 completes the injection, the pressure in the main channel 130 decreases, and the reset elastic member 183 can push the piston 182 to move from right to left until the left end face of the piston 182 is in contact with the right side of the main channel 130.

[0100] For example, see Figure 2 The spraying process of the second spray channel 120 can be as follows: by controlling the operating member 192 to move from bottom to top, the second movable member 142 and the first movable member 141 are sequentially driven to move from bottom to top. When the locking ball 153 enters the second locking groove 1612 ( Figure 5 When the first movable member 141 is locked, the accuracy of its position is ensured. At this time, the first movable member 141 isolates the first extension section 111 and the second extension section 112, while the third extension section 123 and the fourth extension section 124 are in a connected state. Fluid is introduced into the main channel 130 and flows into the cylinder 181, pushing the piston 182 to move from left to right until the right end of the third movable member 143 aligns with the second abutment groove 1622 of the second movable member 142. Figure 4 The fluid abuts against the bottom wall of the groove, locking the second movable member 142. Then, the fluid continues to move along the main channel 130 to the second injection channel 120. Finally, the fluid contacts the second launch member 220 and pushes it to move, achieving the injection purpose. After the injection device 100 completes the injection, the pressure in the main channel 130 decreases, and the reset elastic member 183 pushes the piston 182 to move from right to left until the left end face of the piston 182 is in contact with the right side of the main channel 130. Therefore, the injection device 100 can select a suitable injection channel for fluid injection by changing the position of the operating member 192 according to actual needs.

[0101] It should be noted that the numerical values ​​and ranges involved in the embodiments of this application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A spraying device, characterized in that, include: The system includes a main channel, a first movable component, a first injection channel, and a second injection channel. Both the first and second injection channels extend along a first direction and are arranged along a second direction. Both the first and second injection channels are connected to the main channel. The first and second directions are different. The first injection channel includes a first extension and a second extension that are connected, and the second injection channel includes a third extension and a fourth extension that are connected. The first movable member is movably inserted into the first injection channel and the second injection channel along the second direction. When the injection device is in the first state, the first extension section and the second extension section are connected, and the first movable member isolates the third extension section and the fourth extension section. When the injection device is in the second state, the third extension section and the fourth extension section are connected, and the first movable member isolates the first extension section and the second extension section. The opening sizes of the first injection channel and the second injection channel are different.

2. The spraying device according to claim 1, characterized in that, The first movable component includes a first movable part and a second movable part connected together. The direction from the first movable part to the second movable part is the same as the direction from the first injection channel to the second injection channel. The first movable part has a through hole. The first movable member is used to move along the direction from the first injection channel to the second injection channel, so that the first movable part is inserted between the first extension section and the second extension section, the through hole connects the first extension section and the second extension section, the second movable part is inserted between the third extension section and the fourth extension section, and separates the third extension section and the fourth extension section, and forms the first state; The first movable member is used to move along the direction from the second injection channel to the first injection channel, so as to at least insert the second movable part between the first extension and the second extension and to separate the first extension and the second extension. The first movable member is located outside the second injection channel and forms the second state.

3. The spraying device according to claim 2, characterized in that, When the spraying device is in the first state, the end of the second movable part that is away from the first movable part is located in the second spraying channel and abuts against the inner wall of the second spraying channel. And / or, the opening size of the first injection channel is smaller than the opening size of the second injection channel; And / or, the ratio of the opening size of the second injection channel to the opening size of the first injection channel is in the range of 1.35-2.

15.

4. The spraying device according to any one of claims 1-3, characterized in that, It also includes a mating component, a locking elastic component, and a locking ball, wherein the mating component is located on the side of the first injection channel opposite to the second injection channel and is connected to the first injection channel; The mating component has a receiving groove on the side facing the first movable component, the first movable component covers the opening of the receiving groove, the locking elastic element and the locking ball are both located in the receiving groove, the locking ball is located on the side of the locking elastic element facing the first movable component, and the locking elastic element is in a compressed state. The first movable member has a locking groove on the side facing the receiving groove. When the spraying device is in the first state or the second state, the locking groove is connected to the receiving groove. The locking elastic member is used to drive the locking ball to move towards the first movable member so that part of the locking ball is located in the locking groove.

5. The spraying device according to claim 4, characterized in that, The number of locking slots is two, and the two locking slots include a first locking slot and a second locking slot that are spaced apart along the second direction; When the injection device is in the first state, part of the locking ball is located in the first locking groove; When the injection device is in the second state, part of the locking ball is located in the second locking groove; And / or, the injection device includes a first metal seal and a first elastic seal. The outer wall of the first injection channel has a first sealing groove and a second sealing groove. The opening of the second sealing groove is located at the bottom wall of the first sealing groove. The first metal seal is located in the first sealing groove, and the first elastic seal is located in the second sealing groove. The mating member covers the opening of the first sealing groove. The first metal seal, the first elastic seal, the first sealing groove, the second sealing groove, and the mating member are all arranged around the first movable member. The two sides of the first metal seal abut against the mating member and the bottom wall of the first sealing groove, respectively. The first elastic seal is in a compressed state.

6. The spraying device according to any one of claims 1-3, characterized in that, It also includes a second movable member and a third movable member, the second movable member being connected to the first movable member, and the third movable member being used to move toward or away from the second movable member; The second movable member has an abutment groove on the side facing the third movable member. When the spraying device is in the first state or the second state, the third movable member is used to move towards the second movable member so that the abutment end of the third movable member is inserted into the abutment groove and abuts against the bottom wall of the abutment groove.

7. The spraying device according to claim 6, characterized in that, The number of abutment grooves is two, and the two abutment grooves include a first abutment groove and a second abutment groove that are spaced apart along the second direction; When the spraying device is in the first state, the abutting end abuts against the bottom wall of the first abutting groove; when the spraying device is in the second state, the abutting end abuts against the bottom wall of the second abutting groove.

8. The spraying device according to claim 6, characterized in that, It also includes a cylinder and a piston, both of which are located on the side of the second movable member facing the third movable member. The cylinder has a receiving cavity, and the piston is located in the receiving cavity. The third movable member includes a connecting end, which is located on the side of the abutting end away from the second movable member. The connecting end passes through the cylinder and extends into the receiving cavity, and the abutting end is located outside the cylinder. The connecting end is connected to the piston, and both the piston and the third movable member are movably connected to the cylinder body along the direction from the third movable member to the second movable member. The cylinder body is relatively stationary with respect to the first injection channel.

9. The spraying device according to claim 8, characterized in that, The cylinder body is connected to the main channel, which includes an inlet and an outlet. The inlet is used to communicate with a fluid supply device, and the outlet is connected to the first injection channel and the second injection channel. The main channel has a first opening located between the inlet and the outlet along the extension direction of the main channel. The cylinder body has a second opening located on the side of the piston away from the second movable member, and the first opening is connected to the second opening. And / or, the injection device includes a reset elastic element that abuts against the piston on the side facing the second movable element and is in a compressed state; And / or, the injection device includes a second metal seal and a second elastic seal, the cylinder body includes a cylinder barrel and a cylinder head, the cylinder barrel has an opening at one end facing the second movable member, the cylinder head covers the opening, the cylinder head, the second metal seal, and the second elastic seal are all sleeved on the third movable member, the second metal seal is located between the cylinder head and the cylinder barrel and abuts against the cylinder head and the cylinder barrel, the second elastic seal is located in the receiving cavity and abuts against the second metal seal, and the second elastic seal is in a compressed state.

10. A spray system, characterized in that, include: The fluid supply device and the injection device according to any one of claims 1-9, wherein the fluid supply device is connected to the inlet of the injection device, and the fluid supply device includes a supercritical fluid supply device.

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