injection valve

Abstract

The present application relates to the technical field of spraying device, and discloses a spraying valve, which comprises a valve body and a mixer, the valve body is provided with a containing hole and a spraying hole communicating with one end of the containing hole along a preset direction; the mixer comprises a main flow channel, a secondary flow channel and a mixing cavity, the mixer is inserted into the containing hole and detachably connected with the valve body, one end of the mixing cavity along the preset direction is opposite to the spraying hole and communicates with the spraying hole, the other end of the mixing cavity along the preset direction communicates with the main flow channel, a first through hole is formed in the circumferential wall of the mixing cavity around the preset direction, and the secondary flow channel communicates the first through hole with the main flow channel. The spraying valve sets the mixer inside the valve body, thereby realizing sufficient mixing of the solution inside the valve body.

Description

Technical Field

[0001] This invention relates to the field of spraying device technology, and more particularly to spray valves. Background Technology

[0002] In existing spray valves, the sprayed agent is conical in shape. Due to its large cross-sectional area, when it is necessary to spray the agent into a narrow gap, most of the sprayed agent cannot pass through the gap, thus making it impossible to spray the gap evenly.

[0003] To address this issue, previous patent CN202120366136.X disclosed a rewetting device for a paper feeding system, which included a jet valve with a fan-shaped nozzle. Several nozzles connected to the compression chamber were distributed at the nozzle tip, and jet baffles were provided on both sides of the nozzle. The spray holes were located between the jet baffles. The agent sprayed by this jet valve was fan-shaped with a relatively thin spray cross-section, allowing it to pass through a narrow gap. The spray angle was relatively large, enabling uniform spraying across the gap.

[0004] However, the agent cannot be fully mixed after entering the injection valve, resulting in inconsistent concentrations of the sprayed agent.

[0005] Therefore, an injection valve is urgently needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a spray valve to solve the problem in related technologies where the agent cannot be fully mixed after entering the spray valve, resulting in inconsistent concentrations of the sprayed agent.

[0007] The present invention provides an injection valve comprising:

[0008] The valve body is provided with a receiving hole and a spray hole connected to one end of the receiving hole along a preset direction;

[0009] A mixer includes a main flow channel, a secondary flow channel, and a mixing chamber. The mixer is inserted into the receiving hole and is detachably connected to the valve body. One end of the mixing chamber along the preset direction is opposite to and communicates with the injection hole, and the other end of the mixing chamber along the preset direction is communicated with the main flow channel. A first through hole is formed on the peripheral wall of the mixing chamber around the preset direction, and the secondary flow channel connects the first through hole and the main flow channel.

[0010] As a preferred technical solution for the injection valve, the mixer includes a connecting part and a mixing part that are fixedly connected to each other along the preset direction, the mixing chamber is disposed in the mixing part, the main channel passes through the connecting part and the mixing part, and the connecting part is screwed to the valve body.

[0011] As a preferred technical solution for the injection valve, the peripheral wall of the mixing section is provided with a second through hole, which communicates with the main channel;

[0012] The outer wall of the mixing section is spaced apart from the wall of the receiving hole and forms the secondary flow channel, which connects the first through hole and the second through hole.

[0013] As a preferred technical solution for the injection valve, multiple first through holes are provided, and the multiple first through holes are spaced apart around the peripheral wall of the mixing part; multiple second through holes are provided, and the multiple second through holes are spaced apart around the peripheral wall of the mixing part.

[0014] As a preferred technical solution for the injection valve, the first through hole is tangent to the inner wall of the mixing chamber around the preset direction.

[0015] As a preferred technical solution for the injection valve, a filter screen is also included, which is disposed in the receiving hole and used to filter the solution flowing into the main channel.

[0016] As a preferred technical solution for the injection valve, it also includes a fixed tube, which is provided with a channel. The fixed tube extends into the receiving hole and is detachably connected to the valve body. One side of the filter screen along the preset direction abuts against the other end of the mixer, and the other side of the filter screen along the preset direction abuts against the fixed tube. The channel is opposite to the filter screen.

[0017] As a preferred technical solution for the injection valve, multiple injection holes are provided, and the multiple injection holes are arranged in a fan shape.

[0018] As a preferred technical solution for the injection valve, it also includes two clamping plates fixed at intervals on the valve body, with the injection hole located between the two clamping plates.

[0019] As a preferred technical solution for the injection valve, the mixer is further provided with a connecting channel for connecting the main channel and the mixing chamber;

[0020] The radial dimension of the connecting channel is smaller than the radial dimension of the main channel, and the radial dimension of the connecting channel is smaller than the radial dimension of the mixing chamber.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a jet valve comprising a valve body and a mixer. The valve body has a receiving hole and a jet hole communicating with one end of the receiving hole along a preset direction. The mixer includes a main flow channel, a secondary flow channel, and a mixing chamber. The mixer is inserted into the receiving hole and detachably connected to the valve body. One end of the mixing chamber along the preset direction is opposite to and communicates with the jet hole, and the other end of the mixing chamber along the preset direction is communicated with the main flow channel. A first through hole is formed on the peripheral wall of the mixing chamber around the preset direction, and the secondary flow channel connects the first through hole and the main flow channel. When the jet valve is in operation, a high-pressure solution enters the receiving hole from the other end of the receiving hole and flows into the main flow channel of the mixer. At this time, part of the solution in the main flow channel directly enters the mixing chamber along the preset direction, while the other part is diverted through the secondary flow channel and enters the mixing chamber through the first through hole perpendicular to the preset direction. At this time, the two parts of the solution in the mixing chamber interweave and mix, and the uniformly mixed solution is ejected from the jet hole. This jet valve achieves thorough mixing of the solution inside the valve body by setting a mixer inside the valve body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the injection valve in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 Sectional view at point AA;

[0025] Figure 3 This is an exploded view of the injection valve in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the mixer in an embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the mixer in an embodiment of the present invention;

[0028] Figure 6 This is a top view of the mixer in an embodiment of the present invention.

[0029] In the picture:

[0030] a. Preset direction;

[0031] 1. Valve body; 11. Receiving hole; 12. Injection hole; 13. Clamping plate;

[0032] 2. Mixer; 21. Main flow channel; 22. Secondary flow channel; 23. Mixing chamber; 24. Connecting part; 25. Mixing part; 26. First through hole; 27. Second through hole; 28. Connecting flow channel;

[0033] 3. Filter screen; 4. Fixing pipe; 41. Channel. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] like Figures 1-6As shown, this embodiment provides an injection valve, which includes a valve body 1 and a mixer 2. The valve body 1 is provided with a receiving hole 11 and an injection hole 12 communicating with one end of the receiving hole 11 along a preset direction a. The mixer 2 includes a main flow channel 21, a secondary flow channel 22 and a mixing chamber 23. The mixer 2 is inserted into the receiving hole 11 and is detachably connected to the valve body 1. One end of the mixing chamber 23 along the preset direction a is opposite to and communicates with the injection hole 12. The other end of the mixing chamber 23 along the preset direction a is communicated with the main flow channel 21. A first through hole 26 is opened on the peripheral wall of the mixing chamber 23 around the preset direction (a). The secondary flow channel 22 connects the first through hole 26 and the main flow channel 21. When the spray valve is working, the high-pressure solution enters the receiving hole 11 from the other end of the receiving hole 11 and flows into the main channel 21 of the mixer 2. At this time, part of the solution in the main channel 21 directly enters the mixing chamber 23 along the preset direction a, and the other part is diverted through the secondary channel 22 and enters the mixing chamber 23 through the first through hole 26 along the preset direction a. At this time, the two parts of the solution in the mixing chamber 23 intertwine and mix, and the uniformly mixed solution is sprayed out from the spray hole 12. This spray valve achieves thorough mixing of the solution inside the valve body 1 by setting the mixer 2 inside the valve body 1. When this spray valve is applied to fire extinguishing equipment with batteries inside, the fire extinguishing agent inside the valve body is fully mixed, resulting in a more uniform concentration of the sprayed agent and a better fire extinguishing effect. This prevents the problem that some areas have a high concentration of agent spray, which has a better suppression effect on the fire source, while other areas have a low concentration of agent spray, which has a poor suppression effect on the fire source.

[0039] Optionally, the mixer 2 includes a connecting portion 24 and a mixing portion 25 fixedly connected along a preset direction a. A mixing chamber 23 is disposed in the mixing portion 25, and a main channel 21 passes through the connecting portion 24 and the mixing portion 25. The connecting portion 24 is screwed to the valve body 1. In this embodiment, the outer peripheral wall of the connecting portion 24 is provided with external threads, and the inner peripheral wall of the receiving hole 11 is provided with internal threads. After the connecting portion 24 extends into the receiving hole 11, the connecting portion 24 and the valve body 1 are screwed together. In other embodiments, the connecting portion 24 and the valve body 1 can also be interlocked. The above arrangement facilitates the disassembly of the mixer 2 and the valve body 1, thereby facilitating the rapid maintenance and repair of the injection valve.

[0040] Optionally, the peripheral wall of the mixing section 25 is provided with a second through hole 27, which communicates with the main channel 21; the outer wall of the mixing section 25 is spaced apart from the wall of the receiving hole 11 and forms a secondary flow channel 22, which connects the first through hole 26 and the second through hole 27. In this embodiment, this arrangement can provide a larger flow cross-sectional area for the secondary flow channel 22, preventing blockage of the solution flow, and can also reduce processing costs and improve processing efficiency. In other embodiments, the secondary flow channel 22 can also be excavated inside the mixing section 25.

[0041] Optionally, multiple first through holes 26 are provided, spaced apart around the peripheral wall of the mixing section 25; multiple second through holes 27 are also provided, spaced apart around the peripheral wall of the mixing section 25. In this embodiment, multiple first through holes 26 and multiple second through holes 27 are provided, which can increase the flow rate of the solution in the secondary flow channel 22. This ensures that the solution pressure in the mixing chamber 23 meets the requirements for spraying, guaranteeing the atomization effect and spray range of the solution after it is sprayed out of the spray hole 12.

[0042] Optionally, the first through-hole 26 is tangent to the inner wall of the mixing chamber 23 about a preset direction a. In this embodiment, this arrangement allows the solution in the mixing chamber 23 to rotate about the preset direction a, which is beneficial for mixing the solutions in the main channel 21 and the secondary channel 22.

[0043] Optionally, the injection valve also includes a filter screen 3, which is disposed in the receiving hole 11 and used to filter the solution flowing into the main channel 21. In this embodiment, since the solution contains particulate impurities, the solution entering the main channel 21 is filtered by the filter screen 3 to prevent the particulate impurities from clogging the injection port.

[0044] Optionally, the injection valve further includes a fixing pipe 4, which has a channel 41. The fixing pipe 4 extends into the receiving hole 11 and is detachably connected to the valve body 1. One side of the filter screen 3 along a preset direction a abuts against the other end of the mixer 2, and the other side of the filter screen 3 along the preset direction a abuts against the fixing pipe 4. The channel 41 is opposite to the filter screen 3. In this embodiment, the fixing pipe 4 and the mixer 2 jointly fix the filter screen 3. In other embodiments, the filter screen 3 can also be directly fixed to the inner wall of the receiving hole 11, or placed in the main channel 21 and fixed to the inner wall of the main channel 21. In this embodiment, the fixing pipe 4 and the valve body 1 are threadedly connected. In other embodiments, the fixing pipe 4 and the valve body 1 can be interlocked.

[0045] Optionally, multiple spray holes 12 are provided, arranged in a fan shape. In this embodiment, when the spray valve is placed in a device with limited space, such as a battery box, the solution needs to spread rapidly after being sprayed from the spray valve to achieve large-area coverage of the battery due to the small distance between the spray valve and the battery. Therefore, multiple spray holes 12 are provided, arranged in a fan shape. Specifically, at least three spray holes 12 are provided, spaced apart and forming a fan shape with an included angle of 180°, thereby expanding the spray range and achieving large-area coverage of the battery. In other embodiments, the at least three spray holes 12 may form a fan shape with an included angle of 60°, 90°, or 120°, etc.

[0046] Optionally, the spray valve further includes two clamping plates 13 fixedly spaced on the valve body 1, with the spray hole 12 located between the two clamping plates 13. In this embodiment, the two clamping plates 13 can adjust the atomization effect of the spray valve on the one hand, and enable the spray valve to spray a fan-shaped spray on the other hand. When there is a small gap between the batteries, the conventional spray valve can only spray a cone-shaped spray, so most of the spray is blocked by the batteries. To improve this problem, the spray valve of this application can spray a fan-shaped spray, which can then enter the small gap between the batteries and extinguish the fire.

[0047] Optionally, the mixer 2 is further provided with a connecting channel 28, which connects the main channel 21 and the mixing chamber 23. The radial dimension of the connecting channel 28 is smaller than that of the main channel 21, and the radial dimension of the connecting channel 28 is smaller than that of the mixing chamber 23. In this embodiment, the above arrangement can increase the flow rate of the solution flowing from the main channel 21 through the connecting channel 28 to the mixing chamber 23.

[0048] Optionally, the radial dimension of the main channel 21 corresponding to the connecting part 24 is larger than the radial dimension of the main channel 21 corresponding to the mixing part 25. This setting can increase the flow rate of the solution.

[0049] Optionally, the diameter of the injection orifice 12 is between 0.4 mm and 1.2 mm. This setting can improve the atomization effect of the solution.

[0050] Optionally, the pressure of the high-pressure solution injection is between 0.5 MPa and 4 MPa, which is beneficial for better atomization of the high-pressure solution.

[0051] Optionally, depending on the type of agent, the valve body 11 and mixer 2 can be made of different materials to prevent the agent from corroding or damaging the injection valve. Specifically, the injection valve can be made of plastic, stainless steel, pure copper, etc.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An injection valve, characterized in that, include: The valve body (1) is provided with a receiving hole (11) and a spray hole (12) connecting one end of the receiving hole (11) along a preset direction (a). The mixer (2) includes a main flow channel (21), a secondary flow channel (22) and a mixing chamber (23). The mixer (2) is inserted into the receiving hole (11) and is detachably connected to the valve body (1). One end of the mixing chamber (23) along the preset direction (a) is opposite to and connected to the injection hole (12). The other end of the mixing chamber (23) along the preset direction (a) is connected to the main flow channel (21). The mixing chamber (23) has a first through hole (26) around the peripheral wall of the preset direction (a). The secondary flow channel (22) connects the first through hole (26) and the main flow channel (21). The mixer (2) includes a connecting part (24) and a mixing part (25) fixedly connected to each other along the preset direction (a), the mixing chamber (23) is disposed in the mixing part (25), the main channel (21) passes through the connecting part (24) and the mixing part (25), and the connecting part (24) is screwed to the valve body (1); The mixing section (25) has a second through hole (27) on its peripheral wall, and the second through hole (27) is connected to the main channel (21); The outer wall of the mixing section (25) is spaced apart from the wall of the receiving hole (11) and forms the secondary flow channel (22), which connects the first through hole (26) and the second through hole (27).

2. The injection valve according to claim 1, characterized in that, Multiple first through holes (26) are provided, and multiple first through holes (26) are spaced apart around the peripheral wall of the mixing part (25). Multiple second through holes (27) are provided, and multiple second through holes (27) are spaced apart around the peripheral wall of the mixing part (25).

3. The injection valve according to any one of claims 1-2, characterized in that, The first through hole (26) is tangent to the inner wall of the mixing cavity (23) around the preset direction (a).

4. The injection valve according to any one of claims 1-2, characterized in that, It also includes a filter screen (3), which is disposed in the receiving hole (11) and is used to filter the solution flowing into the main channel (21).

5. The injection valve according to claim 4, characterized in that, It also includes a fixed tube (4), which is provided with a channel (41). The fixed tube (4) extends into the receiving hole (11) and is detachably connected to the valve body (1). The filter screen (3) abuts against the other end of the mixer (2) on one side along the preset direction (a), and the filter screen (3) abuts against the fixed tube (4) on the other side along the preset direction (a). The channel (41) is opposite to the filter screen (3).

6. The injection valve according to any one of claims 1-2, characterized in that, The spray holes (12) are provided in multiple ways, and the multiple spray holes (12) are arranged in a fan shape.

7. The injection valve according to claim 6, characterized in that, It also includes two clamping plates (13) fixed at intervals on the valve body (1), and the injection hole (12) is located between the two clamping plates (13).

8. The injection valve according to any one of claims 1-2, characterized in that, The mixer (2) is also provided with a connecting channel (28) for connecting the main channel (21) and the mixing chamber (23). The radial dimension of the connecting channel (28) is smaller than the radial dimension of the main channel (21), and the radial dimension of the connecting channel (28) is smaller than the radial dimension of the mixing chamber (23).

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