Throttle valve

Abstract

The utility model relates to the technical field of control devices, in particular to a throttling valve which comprises a valve body used for turning fluid, a Tesla valve is arranged on the rear side of the valve body in a matched mode, a cavity is formed in the valve body, a reversing block used for changing the direction of a fluid flow channel is connected in the cavity in a sliding mode, and an electromagnet is fixedly installed on one side wall of the cavity. A spring connected with the reversing block is inserted into the end, close to the reversing block, of the electromagnet through a protruding block, the front end face of the cavity is provided with a valve inlet flow channel communicating with the outside of the valve body and two valve outlet flow channels located on the two sides of the valve inlet flow channel, and the rear end face of the cavity is provided with two connecting holes which are symmetrically distributed and communicate with the outside of the valve body. The two connecting holes are inserted into through holes in the two ends of the Tesla valve through detachable connecting pipes correspondingly, and the front inner wall and the rear inner wall of the Tesla valve are each provided with a plurality of blocking plates which incline towards the connecting hole in one side at the same time and are sequentially parallel. The throttle valve is simple in structure, small in energy loss and easy to maintain, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of control devices, in particular to a throttle valve. Background Art

[0002] The throttle valve is mainly used to control the flow of fluids, and is particularly suitable for the flow control of non-corrosive liquid fluids such as heating and air conditioning. Nowadays, when the flow control of the throttle valve is large, the fluid will experience a large pressure loss in the throttle valve, which will cause energy loss and affect the conversion efficiency of the system.

[0003] The patent with publication number CN219262817U discloses a compact one-way throttle valve, which includes a valve seat, a one-way throttle valve core and an oil circuit connector. A mounting hole is provided inside the valve seat, a first oil circuit through hole is provided at one end of the valve seat, and a second oil circuit through hole is provided at the other end of the valve seat. The first oil circuit through hole and the second oil circuit through hole are respectively connected to the mounting hole, and the oil circuit connector is connected to the first oil circuit through hole. The one-way throttle valve core is arranged in the mounting hole, and the outer peripheral wall of the one-way throttle valve core is interference fit with the inner peripheral wall of the mounting hole. A plurality of side oil channels are also provided inside the valve seat, one end of the side oil channel is connected to the second oil circuit through hole, and the other end of the side oil channel is connected to a side of the mounting hole close to the first oil circuit through hole.

[0004] Although the one-way throttle valve has a simple structure, strong practicality, is easy to use, has a compact structure, can realize the control of the oil circuit, and realizes the one-way throttling function, it only has a one-way flow function and is easily worn by the fluid. In view of this, we propose a throttle valve. Utility Model Content

[0005] The purpose of the utility model is to provide a throttle valve to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A throttle valve comprises a valve body for changing the direction of a fluid, a Tesla valve is provided on the rear side of the valve body, a cavity is provided inside the valve body, a reversing block for changing the direction of a fluid flow channel is slidably connected to the cavity, an electromagnet is fixedly mounted on one side wall of the cavity, an end of the electromagnet close to the reversing block is plugged with a spring connected to the reversing block through a protrusion, an inlet valve flow channel connected to the outside of the valve body and two outlet valve flow channels located on both sides of the inlet valve flow channel are respectively provided on the front end surface of the cavity, two symmetrically distributed connecting holes connected to the outside of the valve body are provided on the rear end surface of the cavity, the two connecting holes are respectively plugged into the through holes at both ends of the Tesla valve through detachable connecting pipes, and a plurality of baffles which are inclined toward the direction of the connecting holes on one side and are sequentially parallel are provided on the front and rear inner walls of the Tesla valve.

[0008] Preferably, an H-shaped flow channel that runs through front to back is opened inside the reversing block, and the front and rear and top and bottom end surfaces of the reversing block are all in contact with the inner wall of the cavity, and the port of the H-shaped flow channel is equal to the aperture of the valve inlet flow channel, the valve outlet flow channel and the connecting hole.

[0009] Preferably, the distance between the two parallel flow channels on the H-type flow channel is equal to half the distance between the two connecting holes, and the axis of the valve inlet flow channel is located in the middle of the two connecting holes; when the rear end port of one of the flow channels of the H-type flow channel is docked and connected with the connecting hole on the same side, the front end port of the other flow channel of the H-type flow channel is docked and connected with the valve inlet flow channel, and the remaining two flow channel ports of the H-type flow channel are in a state of being closed by the inner wall of the cavity.

[0010] Preferably, one end of the spring away from the electromagnet is fixed to the end surface of the commutation block by bolts, and the commutation block is made of a magnetically attractive material.

[0011] Preferably, when the electromagnet is not energized and the spring is in a natural state, the H-type flow channel of the reversing block respectively connects the valve inlet flow channel and the connecting hole on the side away from the electromagnet; when the electromagnet is energized and the spring is in a compressed state, the H-type flow channel of the reversing block respectively connects the valve inlet flow channel and the connecting hole on the side close to the electromagnet.

[0012] Preferably, the baffles are fixed to the front and rear inner walls of the Tesla valve by bolts, respectively, and the baffles on the front and rear sides facing each other do not contact each other.

[0013] Preferably, a baffle is arranged in parallel between every two adjacent baffles, and the baffle does not contact the front and rear inner walls of the Tesla valve, and the width of the baffle is greater than the width of the baffle.

[0014] Preferably, both top and bottom end surfaces of the blocking plate and the baffle are attached to the top and bottom inner walls of the Tesla valve, and the baffle is fixed between the top and bottom side walls of the Tesla valve by screws.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The throttle valve, the valve body and the Tesla valve can be disassembled from each other. At the same time, the reversing block in the valve body slides and changes its position through the electromagnet. The reversing block can be easily slid, which not only changes the direction of the fluid to the connecting pipe, but also changes the outlet flow channel of the fluid discharged from the valve body, causing the fluid to change the flow direction on the Tesla valve, thereby changing the fluid speed. There is no need to change the flow direction by changing the external output pipeline and input pipeline, thereby improving work efficiency;

[0017] 2. The throttle valve and the throttle component do not require any sliding parts, and only use the spatial structure to promote the flow of the fluid. The flow rate of the fluid can be achieved without inputting energy. At the same time, the structure is simple, which can reduce the wear of the fluid on the entire device and increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure in the utility model;

[0020] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the utility model when the fluid is decelerated;

[0021] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model when the fluid is accelerated;

[0022] Figure 5 It is a schematic diagram of the structure of the reversing block and the valve body in half cut in the utility model;

[0023] Figure 6 It is a schematic diagram of the commutation block structure in the utility model.

[0024] In the figure:

[0025] 1. Valve body; 10. Cavity; 11. Reversing block; 110. H-type flow channel; 12. Electromagnet; 13. Spring; 14. Inlet flow channel; 15. Outlet flow channel; 16. Connecting hole;

[0026] 2. Connecting pipe;

[0027] 3. Tesla valve; 30. through hole; 31. baffle plate; 32. baffle plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0030] A throttle valve comprises a valve body 1 for changing the direction of a fluid, a Tesla valve 3 is provided at the rear side of the valve body 1, a cavity 10 is provided inside the valve body 1, a reversing block 11 for changing the direction of a fluid flow channel is slidably connected in the cavity 10, an electromagnet 12 is fixedly installed on one side wall of the cavity 10, a spring 13 connected to the reversing block 11 is plugged into the end of the electromagnet 12 close to the reversing block 11 through a protrusion, the spring 13 is extended and retracted by changing the magnetic force of the electromagnet 12, so that the reversing block 11 slides, and a valve inlet flow channel 14 connected to the outside of the valve body 1 and two valves located on both sides of the valve inlet flow channel 14 are respectively provided on the front end surface of the cavity 10. The outlet valve channel 15, when the reversing block is slid, the inlet valve channel 14 is always the inlet of the fluid, and the two outlet valve channels 15 will change the outlet direction of the fluid due to the sliding of the reversing block 11. The rear end face of the cavity 10 is provided with two symmetrically distributed connecting holes 16 connected to the outside of the valve body 1, so that the fluid can be transported to the next device. The two connecting holes 16 are respectively plugged into the through holes 30 at both ends of the Tesla valve 3 through the detachable connecting pipe 2. The detachable connecting pipe 2 is used to connect and disassemble the device for maintenance. The front and rear inner walls of the Tesla valve 3 are provided with a plurality of baffles 31 which are inclined toward the direction of the connecting holes 16 on one side and are parallel in sequence.

[0031] In this embodiment, an H-shaped flow channel 110 is opened inside the reversing block 11, and the front and rear ends and the top and bottom end faces of the reversing block 11 are all in contact with the inner wall of the cavity 10 to prevent the fluid from leaking through its gaps. At the same time, the sliding of the reversing block 11 can tightly block the remaining flow channels through the inner wall of the cavity 10. The port of the H-shaped flow channel 110 is equal to the aperture of the valve inlet flow channel 14, the valve outlet flow channel 15 and the connecting hole 16 to prevent the difference in fluid pressure caused by different apertures, thereby causing the connecting pipe 2 to fall off.

[0032] In this embodiment, the distance between the two parallel flow channels on the H-type flow channel 110 is equal to half the distance between the two connecting holes 16, and the axis of the valve inlet flow channel 14 is located in the middle of the two connecting holes 16. The distance setting can affect the throttling effect and working efficiency of the entire device; when one of the flow channel rear end ports of the H-type flow channel 110 is docked and connected with the connecting hole 16 on the same side, the other flow channel front end port of the H-type flow channel 110 is docked and connected with the valve inlet flow channel 14, and the remaining two flow channel ports of the H-type flow channel 110 are in a state of being closed by the inner wall of the cavity 10.

[0033] In this embodiment, one end of the spring 13 away from the electromagnet 12 is fixed to the end face of the commutation block 11 by bolts so that it will not loosen easily when the spring 13 stretches the commutation block 11. The commutation block 11 is made of a magnetically attractive material to achieve the function of moving the commutation block 11.

[0034] Specifically, when the electromagnet 12 is not energized and the spring 13 is in a natural state, the H-shaped flow channel 110 of the reversing block 11 is respectively connected to the valve flow channel 14 and the connecting hole 16 on the side away from the electromagnet 12; when the electromagnet 12 is energized and the spring 13 is in a compressed state, the H-shaped flow channel 110 of the reversing block 11 is respectively connected to the valve flow channel 14 and the connecting hole 16 on the side close to the electromagnet 12, so as to achieve the function of the reversing block 11 changing the direction of the fluid.

[0035] In this embodiment, the baffle 31 is fixed to the front and rear inner walls of the Tesla valve 3 by bolts respectively to prevent the baffle 31 from vibrating when the fluid flows, thereby preventing the baffle 31 from loosening, and the baffles 31 on the front and rear sides facing each other do not contact each other to prevent the fluid from being blocked from passing through the Tesla valve 3.

[0036] In this embodiment, a baffle 32 is arranged in parallel between every two adjacent baffles 31, and the baffle 32 does not contact the front and rear inner walls of the Tesla valve 3, and the width of the baffle 31 is greater than the width of the baffle 32. This design can change the flow rate and output of the fluid due to different flow directions.

[0037] In this embodiment, both top and bottom end surfaces of the blocking plate 31 and the baffle plate 32 are attached to the top and bottom inner walls of the Tesla valve 3, and the baffle plate 32 is fixed between the top and bottom side walls of the Tesla valve 3 by screws to prevent the fluid from leaking out of the Tesla valve 3, so that the final effect reaches an ideal state.

[0038] When the throttle valve of the utility model is used, the fluid pipe is first inserted into the valve flow channel 14, and the magnetic force of the electromagnet 12 is changed to make the reversing block 11 slide. When the spring 13 is in the initial state, the fluid is blocked by the upper left end and the lower right end of the H-shaped flow channel 110 in the reversing block 11, so the fluid can only pass into the Tesla valve 3 from the left connecting pipe 2. At this time, the channel between the baffle 31 and the baffle 32 is arranged in a divergent form for the fluid. Every time the fluid passes through a channel between the baffle 31 and the baffle 32, it will be divided into a mainstream and a tributary. Then the tributary will pass over the baffle 32, and the flow direction will become opposite to the mainstream. Then the tributary counterflow collides with the mainstream, causing the fluid to be blocked and a vortex effect to occur, thereby preventing the overall forward flow speed and flow amount of the fluid, reducing the overall flow rate and speed of the fluid, and finally the fluid flows out from the right side of the valve outlet flow channel 15;

[0039] When the spring 13 is in a compressed state, the fluid is blocked by the lower left end and the upper right end of the H-shaped flow channel 110 in the reversing block 11, so the fluid can only enter the Tesla valve 3 from the right connecting pipe 2. At this time, although the fluid flows in the Tesla valve, the fluid will also be divided into the mainstream and the branch flow, but because the channel between the baffle 31 and the baffle 32 is arranged in a convergent form at this time, the branch flow will not change its flow direction when crossing the baffle 32, but will always flow along the mainstream direction. The mainstream will be affected by the downstream force of the branch flow, so that the liquid can flow forward unimpeded, and obtain an acceleration effect due to the flow pressure, and finally the fluid will flow out from the left side valve outlet flow channel 15.

[0040] The above shows and describes the basic principle, main features and advantages of the present embodiment of the utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiment. The above embodiment and description are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present embodiment may have various changes and improvements, which fall within the scope of the present utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

Claims

1. A throttle valve, characterized in that: The invention comprises a valve body (1) for changing the direction of a fluid, wherein a Tesla valve (3) is provided on the rear side of the valve body (1), a cavity (10) is provided inside the valve body (1), a reversing block (11) for changing the direction of a fluid flow channel is slidably connected inside the cavity (10), an electromagnet (12) is fixedly installed on one side wall of the cavity (10), an end of the electromagnet (12) close to the reversing block (11) is plugged with a spring (13) connected to the reversing block (11) through a protrusion, and a front end surface of the cavity (10) is provided with a spring (13) connected to the reversing block (11), and a spring (13) connected to the reversing block (11) is plugged into the spring (13) through a protrusion. The valve body (1) has an inlet flow channel (14) outside the valve body (1) and two outlet flow channels (15) located on both sides of the inlet flow channel (14). The rear end surface of the cavity (10) is provided with two symmetrically distributed connection holes (16) connected to the outside of the valve body (1). The two connection holes (16) are respectively plugged into the through holes (30) at both ends of the Tesla valve (3) through detachable connection pipes (2). The front and rear inner walls of the Tesla valve (3) are provided with a plurality of baffles (31) which are inclined toward the direction of the connection holes (16) on one side and are arranged in sequence in parallel.

2. The throttle valve according to claim 1, characterized in that: The reversing block (11) is provided with an H-shaped flow channel (110) that passes through from front to back. The front and rear ends and the top and bottom end surfaces of the reversing block (11) are all in contact with the inner wall of the cavity (10). The port of the H-shaped flow channel (110) has the same aperture as the valve inlet flow channel (14), the valve outlet flow channel (15) and the connecting hole (16).

3. The throttle valve according to claim 2, characterized in that: The distance between the two parallel flow channels on the H-shaped flow channel (110) is equal to half the distance between the two connecting holes (16), and the axis of the valve inlet flow channel (14) is located in the middle of the two connecting holes (16); when one of the flow channel rear end ports of the H-shaped flow channel (110) is connected to the connecting hole (16) on the same side, the other flow channel front end port of the H-shaped flow channel (110) is connected to the valve inlet flow channel (14), and the remaining two flow channel ports of the H-shaped flow channel (110) are both in a state of being closed by the inner wall of the cavity (10).

4. The throttle valve according to claim 3, characterized in that: One end of the spring (13) away from the electromagnet (12) is fixed to the end surface of the commutation block (11) by means of bolts, and the commutation block (11) is made of a magnetically attractive material.

5. The throttle valve according to claim 4, characterized in that: When the electromagnet (12) is not energized and the spring (13) is in a natural state, the H-shaped flow channel (110) of the reversing block (11) respectively connects the valve inlet flow channel (14) and the connecting hole (16) on the side away from the electromagnet (12); when the electromagnet (12) is energized and the spring (13) is in a compressed state, the H-shaped flow channel (110) of the reversing block (11) respectively connects the valve inlet flow channel (14) and the connecting hole (16) on the side close to the electromagnet (12).

6. The throttle valve according to claim 1, characterized in that: The baffle plates (31) are respectively fixed to the front and rear inner walls of the Tesla valve (3) by bolts, and the baffle plates (31) opposite to each other on the front and rear sides do not contact each other.

7. The throttle valve according to claim 1, characterized in that: A baffle plate (32) is arranged in parallel between every two adjacent baffle plates (31), and the baffle plate (32) does not contact the front and rear inner walls of the Tesla valve (3), and the width of the baffle plate (31) is greater than the width of the baffle plate (32).

8. The throttle valve according to claim 7, characterized in that: The top and bottom end surfaces of the blocking plate (31) and the baffle plate (32) are both attached to the top and bottom inner walls of the Tesla valve (3), and the baffle plate (32) is fixed between the top and bottom side walls of the Tesla valve (3) by screws.

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