Electric control starting valve and atomizing nozzle using same

Abstract

The electric control starting valve comprises a valve body, a valve element, a lower supporting frame, a plug and a starter, the valve body is of a tubular structure internally provided with a through channel, the valve element is a columnar solid arranged in the through channel, the lower supporting frame is detachably installed at the position of a lower connector and comprises a notch and a frame body, and the notch is communicated with the plug. The atomizer comprises an atomizer body and a rotary core, an atomizing cavity is formed in the atomizer body, a fluid inlet and a spraying outlet which are communicated with the outside are formed in the two ends of the atomizing cavity respectively, and the rotary core is fixedly arranged at the position, close to the fluid inlet, in the atomizing cavity. At least two spiral runners are arranged on the rotary core; according to the pneumatic valve, the valve element of the stepped shaft structure is used, the sealing ring is arranged at the shaft shoulder position, the sealing effect of the pneumatic valve is improved, the sealing effect of the pneumatic valve can be improved through the pressure of the fire extinguishing agent during starting, and it is guaranteed that the spraying pressure of the fire extinguishing agent cannot be reduced.

Description

Technical Field

[0001] The utility model relates to the field of fire extinguishing facilities, in particular to an electric control start valve and an atomizing nozzle using the valve. Background Art

[0002] At present, atomizing nozzles are widely used in the field of fire extinguishing. However, most of the existing atomizing nozzles are open nozzles, or only adopt a passive start mode of automatic start by a heat-sensitive glass bulb. The start mode is single and unreliable. The start of the nozzle completely depends on the rise of the temperature in the protected area, and the fire cannot be extinguished in the budding state. Often, the fire has already become very large before the nozzle starts to extinguish the fire, causing irreparable economic losses and accidents. For closed nozzles using valves, there are also problems such as easy leakage of the valve. When closed, the leakage increases the manual operation and maintenance cost, and when starting, the leakage reduces the spraying pressure of the fire extinguishing agent and reduces the fire extinguishing efficiency of the nozzle. In view of this, this application is specifically proposed. Content of the Utility Model

[0003] To solve the above technical problems, the utility model discloses an electric control start valve, which includes a valve body, a valve core, a lower support frame, a plug and a starter. The valve body is a tubular structure with a through channel inside. The through channel forms a liquid inlet and a lower interface at both ends of the valve body respectively. A liquid outlet communicating with the through channel is opened on the side wall of the valve body. The valve core is a columnar entity arranged in the through channel and is in clearance fit with the through channel to form a piston mechanism that can slide telescopically in the through channel and can block or open the liquid outlet. The lower support frame is detachably installed at the lower interface. The lower support frame is provided with a notch into which the plug can be inserted, and a frame body extending along the direction of the notch. The plug is plugged at the notch to block the through channel, and together with the support frame, it forms a sealing structure for the lower interface of the valve body. And the plug is located on the stroke path of the valve core to form a blocking member for the movement of the valve core. The starter is arranged between the plug and the end of the frame body and is in contact with both of them respectively to form a bearing structure for supporting the fixed position of the plug.

[0004] Specifically, the valve core includes a core column and a valve core body. The core columns are respectively arranged at both ends of the valve core body and have a diameter smaller than that of the valve core body, forming a stepped shaft structure with thin ends and thick middle. The valve core body is in clearance fit with the through channel. Sealing rings are arranged at the joints of both ends of the valve core body and the core columns, and the sealing rings are closely attached to the through channel.

[0005] Specifically, one end of the core column facing the plug is in a reduced shape, and a blind hole is provided on the end face. The plug is a columnar plug body, and the end facing the through channel is in a reduced shape, and a protruding taper pin is provided on the end face. The taper pin is matched with the blind hole to form a positioning structure that can be inserted into the blind hole.

[0006] Specifically, the aperture of the liquid inlet is smaller than the inner diameter of the through channel, and the connection between the liquid inlet and the through channel is a stepped structure, and the core column and the liquid inlet are gap-matched to form a compression sealing structure in which the sealing ring can contact the stepped structure.

[0007] Specifically, a ring groove is provided on the valve core body along the circumferential direction, and a second sealing ring is sleeved in the ring groove, and the second sealing ring is tightly fitted with the through channel.

[0008] Specifically, the frame is provided with a threaded opening, and an adjusting screw is threadedly connected to the threaded opening. The end of the adjusting screw faces the starter and has a seat groove for the starter to abut against. By turning the adjusting screw, a sealing adjustment mechanism is formed that can push the starter toward the plug, linking the stem to approach the liquid inlet and compressing the sealing ring on the stepped structure.

[0009] Specifically, the starter includes a starting glass ball, an electric heating element, an insulating layer, a shell and a wire. The electric heating element is a clamping ring structure, and the two ends of the clamping ring opening are respectively connected to the wire. The inner ring of the electric heating element is sleeved with the starting glass ball. The insulating layer covers the surface of the outer ring of the electric heating element. The shell is a sleeve structure with an opening on the side, and the opening direction is opposite to the clamping ring opening of the electric heating element and is sleeved on the outer periphery of the insulating layer to form a tightening structure for the electric heating element. The wire is sandwiched between the insulating layer and the shell, and passes through the opening of the shell.

[0010] Specifically, the liquid outlet is connected to an elbow pipe, and the elbow pipe is connected to the through-channel of the valve body through the liquid outlet to form an extended liquid outlet channel.

[0011] Furthermore, an atomizing nozzle using a start valve comprises a nozzle body and a swirl core, wherein the nozzle body has an atomizing chamber, and the two ends of the atomizing chamber are respectively provided with a fluid inlet and a spray outlet connected to the outside, wherein the fluid inlet is connected to the outlet of the elbow pipe to form a liquid supply pipeline, and the swirl core is fixedly arranged in the atomizing chamber near the fluid inlet, and the swirl core is provided with at least two spiral flow channels, and the outlet of the spiral flow channel is arranged toward the side wall of the atomizing chamber.

[0012] Specifically, the spray port is gradually expanded along the spray direction, forming a bell-mouth structure that can increase the diameter of the atomized spray.

[0013] Advantages and Effects

[0014] By using a valve core with a stepped shaft structure and a sealing ring set at the shaft shoulder position, the sealing effect of the pneumatic valve is improved, and the sealing effect of the pneumatic valve can also be increased during startup by the pressure of the fire extinguishing agent, ensuring that the spraying pressure of the fire extinguishing agent will not decrease; by using a starter, three startup methods of deflagration heat generation, electric automatic, and electric manual startup can be realized, achieving fast and accurate fire extinguishing and preventing the fire from increasing. By using a rotating core, the atomization effect of the fire extinguishing agent is achieved before it is ejected from the nozzle, improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is one of the structural schematic diagrams of the electric control start valve of the present utility model;

[0016] Figure 2 FIG. 2 is another structural schematic diagram of the electric control start valve of the present utility model;

[0017] Figure 3 FIG. 3 is the structural schematic diagram of the atomizing nozzle of the electric control start valve of the present utility model;

[0018] Figure 4 FIG. 4 is the structural schematic diagram of the valve core of the present utility model;

[0019] Figure 5 FIG. 5 is the structural schematic diagram of the atomizing nozzle of the present utility model;

[0020] Figure 6 FIG. 6 is the cross-sectional structural schematic diagram of the starter of the present utility model.

[0021] LEGEND: 1. valve body; 11. liquid inlet; 12. lower interface; 13. liquid outlet; 2. valve core; 21. core column; 22. valve core body; 23. sealing ring; 24. blind hole; 25. annular groove; 26. second sealing ring; 3. lower support frame; 31. notch; 32. frame body; 321. threaded port; 322. adjusting screw; 323. seat groove; 4. plug; 41. taper pin; 5. starter; 51. starting glass ball; 52. electric heating element; 53. heat insulation layer; 54. outer shell; 55. wire; 6. elbow pipe; 7. nozzle body; 71. atomization chamber; 72. fluid inlet; 73. spray outlet; 8. rotating core; 81. spiral flow channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the present utility model in conjunction with embodiments, but is not limited to the content in the specification.

[0023] As Figures 1 to 4As shown, the utility model relates to a starter valve, which includes a valve body 1, a valve core 2, a lower support frame 3, a plug 4 and a starter 5. The valve body 1 is a tubular structure with a through channel inside. The through channel forms a liquid inlet 11 and a lower interface 12 at both ends of the valve body 1. A liquid outlet 13 connected to the through channel is opened on the side wall of the valve body 1. The valve core 2 is a columnar entity arranged in the through channel and is matched with the through channel gap to form a piston mechanism that can telescope and slide in the through channel and can block or open the liquid outlet 13. The support frame 3 is detachably mounted at the lower interface 12, and is provided with a notch 31 into which the plug 4 can be inserted, and a frame body 32 extending along the notch 31. The plug 4 is plugged in the notch 31 to block the through-channel, and together with the support frame 3 forms a covering structure of the lower interface 12 of the valve body 1, and the plug 4 is located on the travel path of the valve core 2 to form a blocking member for the movement of the valve core 2. The starter 5 is arranged between the plug 4 and the end of the frame body 32, and the two are respectively abutted to form a load-bearing structure that supports the plug 4 in a fixed position. The valve body 1 is the main channel for the fire extinguishing agent to flow through. A valve core 2 is arranged in the through channel to block the through channel so that it cannot flow through the liquid inlet 11 and the lower interface 12. However, the liquid outlet 13 at the side wall provides another flow channel for the fire extinguishing agent. The fire extinguishing agent can enter the through channel from the liquid inlet 11 and flow through the liquid outlet 13 in the middle of the through channel to form a complete flow channel. The valve core 2 in the through channel acts as a piston mechanism by sliding in the channel. When the valve core 2 is in the upper stop position, the valve core 2 will block the liquid outlet 13, so that the flow channel of the fire extinguishing agent is closed. As the valve core 2 moves from the upper stop position to the lower stop position, the upper end of the valve core 2 gradually opens the liquid outlet 13. When the valve core 2 moves to the lower stop position, the valve core 2 no longer has an area that can block the liquid outlet 13, so that the flow channel is fully opened. The lower support frame 3, the plug 4 and the starter 5 together constitute a starting device for controlling whether the valve core 2 can reach the lower stop position. Specifically, the lower support The frame 3 and the lower interface 12 are detachably connected using threads. The notch 31 replaces the lower interface 12 to become the opening at the lower end, and the diameter of the notch 32 can allow the valve core 2 to pass through and reach the lower stop position. The plug 4 is used to plug the notch 31 and block the path for the valve core 2 to reach the lower stop position, so that its position is maintained in a state of closing the liquid outlet 13. The actuator 5 can be at the lower end, with the lower end of the frame 32 as a support point, to press the plug 4 to maintain the position of the notch 31 to achieve the valve closed state. When it is necessary to start, the actuator 5 starts and self-destructs or leaves the support position. The plug 4 is no longer supported by the force that maintains it at the notch 31. The pressure on the valve core 2 can drive it to push open the plug 4 and pass through the notch 31 to reach the lower stop position. At this time, the liquid outlet 13 is fully opened to achieve valve startup. The entire valve structure is reliable, making it a closed liquid outlet valve, and the valve startup can be controlled by whether the actuator 5 is powered.

[0024] If Figure 4As shown, the valve core 2 includes a core column 21 and a valve core body 22. The core column 21 is respectively arranged at both ends of the valve core body 22, and its diameter is smaller than that of the valve core body 22, forming a stepped shaft structure with thinner ends and thicker middle. The valve core body 22 is in clearance fit with the through-channel. Sealing rings 23 are arranged at the joints between the two ends of the valve core body 22 and the core column 21, and the sealing rings 23 are in close fit with the through-channel. The valve core 2 of this structure forms a stepped shaft structure with a thicker middle and thinner ends. The sealing rings 23 are arranged at the shoulders of the stepped shaft. The outer diameter of the sealing rings 23 can be slightly larger than the diameter of the through-channel, so that it can be in close fit with the through-channel to increase the airtightness in the closed and non-starting state and avoid leakage problems.

[0025] One end of the core column 21 facing the plug 4 is in a reduced shape, and a blind hole 24 is provided on the end face. The plug 4 is a columnar plug body, and the end facing the through-channel direction is in a reduced shape, and a protruding taper pin 41 is provided on the end face. The taper pin 41 cooperates with the blind hole 24 to form a positioning structure that can be inserted into the blind hole 24. Specifically, the bottom end of the core column 21 is a reduced frustum structure, and the blind hole 24 opened in the center can cooperate with the taper pin 41 on the end face of the plug 4 for positioning, so that the plug 4 will not be tilted after installation, and it can avoid the problem that the plug 4 is stuck and unable to open the notch 31 due to the tilt during installation, improving the start-up stability and reliability of the device. In addition, the end of the plug 4 where the taper pin 41 is provided is also set in a reduced shape, that is, a frustum shape is formed at the end, and the taper pin 41 is provided on the frustum end face. The ends of the core column 21 and the plug 4, these two opposite ends are in a reduced shape, and it is easier to enter the notch 31. Whether it is during installation or the start-up of the device in use, it can pass through the notch 31 and rely on the end of the reduced structure to correct the deviation, and will not be stuck with the notch 31 and unable to pass through, which is convenient for installation and can also improve the reliability of the device and enable stable start-up.

[0026] The aperture of the liquid inlet 11 is smaller than the inner diameter of the through-channel, and the connection between the liquid inlet 11 and the through-channel is a stepped structure, and the core column 21 and the liquid inlet 11 are in clearance fit, forming a compression sealing structure in which the sealing ring 23 can contact the stepped structure. Specifically, the through-channel is a stepped channel opening at one end of the liquid inlet 11, and the upper channel has a small diameter and the lower straight channel has a large diameter. The sealing ring 23 at the upper end shoulder of the valve core 3 can contact the plane of the stepped structure in the through-channel, and the pressure of the plug 4 on the valve core 2 can press it on the step plane of the stepped structure, thereby increasing the contact area between the sealing ring 23 and the through-channel, achieving the effect of increasing the sealing performance. In addition, the diameter of the notch 31 is enough for the core column 21 to pass through, but the valve core body 22 will be stuck, so that the sealing ring 23 at the lower end shoulder of the valve core 3 can also contact the notch. The plane contact of the edge of the port 31, the sealing ring 23 here can improve the sealing performance of the valve core 2 on the one hand, and on the other hand, when the valve body starts working, the huge pressure inside the fire extinguishing agent impacts the valve core 2 that can slide downward, and the lower sealing ring 23 can effectively slow down the impact force generated by the rapid downward movement of the valve core 2. Then the pressure of the extinguishing agent continues to act on the valve core 2, and the downward pressure 2 formed can compress the lower sealing ring 23 to ensure the sealing performance of the valve core during operation, which can effectively prevent the problem of liquid leakage and the pressure reduction of the liquid outlet, and the pressure of the liquid outlet can be maintained.

[0027] A ring groove 25 is provided along the circumferential direction of the valve core body 22, and a sealing ring 26 is sleeved in the ring groove 25, and the sealing ring 26 fits tightly with the through channel. Another sealing ring is added in the stable middle section of the valve core to further improve the overall sealing performance, and the sealing ring can play a sealing role when closing and starting. The position of the ring groove 25 should ensure that when the valve core is in the upper stop position in the closed state, the ring groove position should be above the upper edge of the liquid outlet 13, and when the valve core is in the lower stop position after starting, the ring groove position should be below the lower edge of the liquid outlet 13; specifically, all the sealing rings used are "O" rings, made of rubber, silicone or soft plastic.

[0028] The frame 32 is provided with a threaded opening 321, and an adjusting screw 322 is threadedly connected to the threaded opening 321. The end of the adjusting screw 322 faces the starter 5, and has a seat groove 323 for the starter 5 to abut against. By turning the adjusting screw 142, a sealing adjustment mechanism is formed that can push the starter 5 toward the plug 4, link the core column 21 to approach the liquid inlet 11, and press the sealing ring 23 on the stepped structure. During the process of tightening the threaded opening and the screw at the bottom, the starter 5 pushes the plug 4, and the plug 4 pushes the valve core 2 to the upper stop position. After reaching the upper stop position, continue to tighten the adjusting screw 322 to increase the pressure on the valve core 2, which can compress the sealing ring at the upper end shoulder, further improve the sealing effect when closed, and extend the sealing time, reducing the number of operation and maintenance.

[0029] If Figure 6 As shown in FIG. 1 , the starter 5 includes a starting glass ball 51, an electric heating element 52, an insulating layer 53, a shell 54 and a conducting wire 55. The electric heating element 52 is a clamping ring structure, and the two ends of the clamping ring opening are respectively connected to the conducting wire 55. The inner ring of the electric heating element 52 is sleeved with the starting glass ball 51, and the insulating layer 53 covers the surface of the outer ring of the electric heating element 52. The shell 54 is a sleeve structure with an opening on the side, and the opening direction is opposite to the clamping ring opening of the electric heating element 52 and is sleeved on the outer periphery of the insulating layer 53 to form a tightening structure for the electric heating element 52. The conducting wire 55 is sandwiched between the insulating layer 53 and the shell, and passes through the opening of the shell 54. Specifically, the electric heating element 52 is a thermal resistance wire arranged in a folded manner, and the starting glass ball 51 is a temperature-sensitive glass ball. When starting is required, the electric heating element 52 obtains a starting electrical signal through the wire, and the temperature of the electric heating element 52 rises to break the temperature-sensitive glass ball. After being free from force, the starter 5 is separated from the supporting position, because the starting glass ball 51 is broken after the explosion, and the broken starting glass ball 51 can no longer provide force to resist the plug 4, and the force is no longer balanced. The pressure pushes the valve core to push the plug out of the gap 31, and presses down the valve core to open the liquid outlet 13, thereby realizing the starting action. The thermal resistance wire is repeatedly bent and arranged to form a width The long strip is then covered by the heat insulation layer to form a ring with a gap, that is, the cross section is "C" shaped, which can clamp the capsule-shaped temperature-sensitive glass ball, and then another "C"-shaped cross section with an opening of the replacement shell 54 is reversely installed to block the gap position of the electric heating element, so that the electric heating element can tighten the temperature-sensitive glass ball, making it difficult to slide in the vertical direction, and can tighten and keep the temperature-sensitive glass ball in the middle position. The wire is clamped between the heat insulation layer 53 and the shell 54, and will not be affected by the heating of the electric heating element 52. It also acts as a cushion in the middle to increase the clamping force. The liquid outlet 13 is connected to the elbow pipe 6, which is connected to the through channel of the valve body 1 through the liquid outlet 13 to form an extended liquid outlet channel.

[0030] If Figure 3 and Figure 5 ​As shown in the figure, an atomizing nozzle using a starting valve includes a nozzle body 7 and a swirler 8. The nozzle body 7 has an atomizing chamber 71. At both ends of the atomizing chamber 71, there are respectively provided a fluid inlet 72 and a spray outlet 73 communicating with the outside. The fluid inlet 72 is communicated with the outlet of the elbow pipe 6 to form a liquid supply pipeline. The swirler 8 is fixedly arranged in the atomizing chamber 71 near the fluid inlet 72. At least two spiral flow channels 81 are provided on the swirler 8, and the outlets of the spiral flow channels 81 are arranged towards the side wall of the atomizing chamber 71. The atomizing nozzle atomizes the fire extinguishing agent flowing through the liquid outlet and the elbow pipe 6, and then sprays it to extinguish the fire. Specifically, the spiral flow channels 81 can divert the fire extinguishing agent to the inner wall of the atomizing chamber 71, and rely on the self-pressure of the fire extinguishing agent to spray towards the inner wall. After hitting the inner wall, the fire extinguishing agent is broken and atomized to form fine droplets, and then the fog-like fire extinguishing agent is sprayed through the spray outlet 73 to implement fire extinguishing. This nozzle is used in conjunction with the above-mentioned starting valve, and through three starting methods of deflagration heat generation, electrical automatic and electrical manual starting, the nozzle starts quickly and extinguishes fires reliably. During a fire, it can start the nozzles above and near the ignition source at a fixed point, spray the fire extinguishing agent concentratedly, extinguish the fire in the initial stage, and also reduce the consumption of the fire extinguishing agent. The spray outlet 73 is in a gradually expanding shape along the liquid spraying direction, forming a flared structure that can increase the atomizing spraying diameter, so as to achieve the effect of expanding the spraying area.

[0031] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. An electrically controlled starting valve, characterized in that: It comprises a valve body (1), a valve core (2), a lower support frame (3), a plug (4) and an actuator (5); the valve body (1) is a tubular structure having a through channel inside; the through channel forms a liquid inlet (11) and a lower interface (12) at both ends of the valve body (1); a liquid outlet (13) connected to the through channel is provided on the side wall of the valve body (1); the valve core (2) is a columnar entity arranged in the through channel and is clearance-matched with the through channel to form a piston mechanism that can telescope and slide in the through channel and can block or open the liquid outlet (13); the lower support frame (3) is detachably mounted At the lower interface (12), the lower support frame (3) is provided with a notch (31) into which the plug (4) can be inserted, and a frame body (32) extending along the notch (31). The plug (4) is inserted in the notch (31) to block the through passage, and together with the support frame (3) forms a sealing structure of the lower interface (12) of the valve body (1), and the plug (4) is located on the travel path of the valve core (2) to form a blocking member for the movement of the valve core (2). The starter (5) is arranged between the plug (4) and the end of the frame body (32), and the two are respectively abutted to form a load-bearing structure that supports the plug (4) in a fixed position.

2. The electrically controlled starting valve according to claim 1, characterized in that: The valve core (2) comprises a core column (21) and a valve core body (22). The core column (21) is respectively arranged at the two ends of the valve core body (22) and has a smaller diameter than the valve core body (22), forming a stepped shaft structure with thin ends and thick middle. The valve core body (22) is clearance-matched with the through-channel. Sealing rings (23) are arranged at the connection between the two ends of the valve core body (22) and the core column (21), and the sealing ring (23) is tightly fitted with the through-channel.

3. The electrically controlled starting valve according to claim 2, characterized in that: The end of the core column (21) facing the plug (4) is in a reduced shape, and a blind hole (24) is provided on the end surface; the plug (4) is a columnar plug body, and the end facing the through-channel is in a reduced shape, and a protruding cone nail (41) is provided on the end surface; the cone nail (41) cooperates with the blind hole (24) to form a positioning structure capable of being inserted into the blind hole (24).

4. The electrically controlled starting valve according to claim 2, characterized in that: The aperture of the liquid inlet (11) is smaller than the inner diameter of the through channel, and the connection between the liquid inlet (11) and the through channel is a stepped structure. The core column (21) and the liquid inlet (11) are clearance-matched to form a compression sealing structure in which the sealing ring (23) can contact the stepped structure.

5. The electrically controlled starting valve according to claim 4, characterized in that: The valve core body (22) is provided with an annular groove (25) along the circumferential direction, and a second sealing ring (26) is sleeved in the annular groove (25), and the second sealing ring (26) is tightly fitted with the through channel.

6. The electrically controlled starting valve according to claim 4, characterized in that: The frame (32) is provided with a threaded opening (321), and an adjusting screw (322) is threadedly connected to the threaded opening (321). The end of the adjusting screw (322) faces the starter (5) and has a seat groove (323) for the starter (5) to abut against. By turning the adjusting screw (232), a sealing adjustment mechanism is formed that can push the starter (5) toward the plug (4), link the core column (21) to approach the liquid inlet (11), and press the sealing ring (23) on the stepped structure.

7. The electrically controlled starting valve according to claim 1, characterized in that: The starter (5) comprises a starting glass ball (51), an electric heating element (52), a heat insulating layer (53), an outer shell (54) and a wire (55). The electric heating element (52) is a clamping ring structure, and the two ends of the clamping ring opening are respectively connected to the wire (55). The inner ring of the electric heating element (52) is sleeved with the starting glass ball (51). The heat insulating layer (53) covers the surface of the outer ring of the electric heating element (52). The outer shell (54) is a sleeve structure with an opening on the side, and the opening direction is opposite to the clamping ring opening of the electric heating element (52) and is sleeved on the outer periphery of the heat insulating layer (53) to form a tightening structure for the electric heating element (52). The wire (55) is sandwiched between the heat insulating layer (53) and the outer shell, and passes through the opening of the outer shell (54).

8. The electrically controlled starting valve according to claim 1, characterized in that: The liquid outlet (13) is connected to an elbow pipe (6), and the elbow pipe (6) is connected to the through-channel of the valve body (1) through the liquid outlet (13) to form an extended liquid outlet channel.

9. An atomizing nozzle using the electronically controlled starting valve according to any one of claims 1 to 8, characterized in that: It comprises a nozzle body (7) and a swirl core (8), wherein the nozzle body (7) has an atomizing chamber (71), and the two ends of the atomizing chamber (71) are respectively provided with a fluid inlet (72) and a spray outlet (73) which are connected to the outside, the fluid inlet (72) is connected to the outlet of the elbow pipe (6) to form a liquid supply pipeline, and the swirl core (8) is fixedly arranged in the atomizing chamber (71) at a position close to the fluid inlet (72), and at least two spiral flow channels (81) are arranged on the swirl core (8), and the outlets of the spiral flow channels (81) are arranged toward the side wall of the atomizing chamber (71).

10. The atomizing nozzle according to claim 9, characterized in that: The spray port (73) is gradually expanded along the spray direction, forming a bell-mouth structure capable of increasing the diameter of the atomized spray.

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