Adjustable injection nozzle device

Abstract

The utility model discloses an adjustable injection nozzle device which comprises an injection assembly, a valve element assembly is movably arranged in an inner cavity of the injection assembly, and an adjusting assembly used for driving the valve element assembly to move in the injection assembly is arranged at one end of the injection assembly. Two stability control assemblies which are symmetrically arranged and used for improving the moving stability of the valve element assembly are arranged between the valve element assembly and the injection assembly. The stable control assembly is additionally arranged between the injection assembly and the valve element assembly, when the adjusting assembly drives the valve element assembly to conduct position adjustment in the injection assembly, the valve element assembly can drive the supporting rod to slide on the surface of the guide strip, the guiding effect on the valve element assembly can be achieved, and the auxiliary supporting effect on the valve element assembly can also be achieved; the phenomenon that the valve element assembly shakes or impacts the inner wall of the injection assembly in the moving process is prevented, and the stability of the valve element assembly in the moving process can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to ejector technical field especially relates to adjustable ejector nozzle device. BACKGROUND

[0002] Ejector is a kind of equipment using the medium jetting out to bring the surrounding medium into suction chamber, and its entrainment ratio, i.e. the ratio of low-pressure medium flow and high-pressure medium flow, is an important index affecting the economic operation of ejector. It is mainly used to mix two kinds of medium to obtain medium with intermediate pressure or to transport the medium to be jetted, so as to realize energy saving and efficiency increase in production, and is commonly used in boilers in chemical industry, metallurgy and other industries.

[0003] The patent document with publication number CN218118159U discloses a rear adjustment type steam ejector, which sets the throttle core on the side close to the nozzle outlet, ensures that the flow area at the nozzle throat and the flow area at the outlet change by the same proportion, and the flow area at the outlet and the flow area of the mixing chamber change by the same proportion, so as to ensure that the entrainment ratio and the work capacity of the ejector do not decrease when the flow is adjusted, and improve the economic effect of the ejector. By setting the actuator on the high-pressure inlet side away from the front end, the direct impact of high-pressure medium on the connection part of the actuator and the ejector is avoided, the pressure of the front end part is reduced, and the sealing difficulty is reduced.

[0004] Although the above-mentioned rear adjustment type steam ejector can solve the corresponding technical problems, the adjusting core is easy to shake when moving along the central axis of the high-medium inlet due to unstable medium pressure or actuator speed, which further affects the flow regulation of the ejector. If the shaking amplitude is too large, it will hit the inner wall of the nozzle, produce a large noise, and long-term impact will cause damage, thereby shortening the service life of the rear adjustment type steam ejector.

[0005] Therefore, an adjustable ejector nozzle device is proposed. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to provide adjustable ejector nozzle device for solving the problems proposed in the above background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:

[0008] The adjustable ejector nozzle device includes:

[0009] The inner cavity of the ejector assembly is movably provided with a valve core assembly, one end of the ejector assembly is provided with an adjusting assembly for driving the valve core assembly to move in the ejector assembly, and two symmetrical stability control assemblies are arranged between the valve core assembly and the ejector assembly for improving the movement stability of the valve core assembly.

[0010] The stable control assembly comprises a supporting rod arranged on the valve core assembly, the inner cavity of the ejector assembly is provided with a guide strip, one end of the supporting rod is provided with a guide groove, and the supporting rod and the guide strip are provided with a rolling element.

[0011] As a preferred technical scheme, the rolling element comprises a groove arranged in the inner cavity of the guide groove, the inner cavity of the groove is movably embedded with a ball, and the ball is in sliding connection with the corresponding guide strip.

[0012] As a preferred technical scheme, one side of the guide strip, towards the ball, is provided with a rolling groove, and the ball is in rolling connection with the inner wall surface of the rolling groove.

[0013] As a preferred technical scheme, the ejector assembly comprises a pipe body, one end of the pipe body, away from the adjusting assembly, is provided with a high-pressure medium inlet, the top of the pipe body and one side, close to the high-pressure medium inlet, are communicated with a first branch pipe, the bottom of the pipe body and one side, close to the adjusting assembly, are communicated with a second branch pipe, one end of the first branch pipe, away from the pipe body, is provided with a low-pressure medium inlet, one end of the second branch pipe, away from the pipe body, is provided with a medium outlet, and the guide strip is fixedly connected to the inner wall surface of the pipe body along the axis direction of the pipe body.

[0014] As a preferred technical scheme, the inner cavity of the pipe body is fixedly connected with a nozzle and a mixing seat along the medium flow direction in sequence, the nozzle is located below the first branch pipe, the mixing seat is located between the first branch pipe and the second branch pipe, and the guide strip is arranged along the axis direction of the pipe body.

[0015] As a preferred technical scheme, the valve core assembly comprises a valve core arranged in the inner cavity of the pipe body, one end of the valve core penetrates into the inner cavity of the nozzle through the mixing seat, the other end of the valve core is fixedly connected with a pull rod, one end of the pull rod, away from the valve core, is sealingly penetrated to the outside of the pipe body, and one end of the supporting rod, away from the guide strip, is fixedly connected to the joint of the valve core and the pull rod.

[0016] As a preferred technical scheme, the adjusting assembly comprises a shell mounted on one end of the pipe body, away from the high-pressure medium inlet, one end of the pull rod, away from the valve core, extends to the inner cavity of the shell, one end of the shell, away from the pipe body, is mounted with a motor, the output shaft of the motor penetrates into the inner cavity of the shell and is provided with a linkage between the pull rod.

[0017] As a preferred technical scheme, the linkage comprises a screw sleeve fixedly connected to the output shaft of the motor, the inner cavity of the screw sleeve is threadedly connected with a screw rod, one end of the screw rod penetrates to the outside of the screw sleeve and is fixedly connected with the pull rod, and the central axes of the pipe body, the nozzle, the mixing seat, the valve core, the pull rod, the output shaft of the motor, the screw sleeve and the screw rod are on the same straight line.

[0018] The utility model at least has the following beneficial effects:

[0019] The application adds a stabilizing control assembly between the ejecting assembly and the valve core assembly, when the adjusting assembly drives the valve core assembly to adjust the position in the ejecting assembly, the valve core assembly can drive the supporting rod to slide on the surface of the guide strip, which can guide the valve core assembly and assist in supporting the valve core assembly, so as to prevent the valve core assembly from shaking or colliding with the inner wall of the ejecting assembly during movement, and ensure the stability of the valve core assembly during movement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the adjustable ejecting nozzle device of the utility model;

[0021] Figure 2 It is a structure section view of the adjustable ejecting nozzle device of the utility model;

[0022] Figure 3 It is a structure schematic view of the valve core assembly and the stabilizing control assembly of the adjustable ejecting nozzle device of the utility model;

[0023] Figure 4 It is a local structure section view of the stabilizing control assembly of the adjustable ejecting nozzle device of the utility model.

[0024] In the drawing: 100, ejecting assembly; 110, pipe body; 120, first branch pipe; 130, second branch pipe; 140, nozzle; 150, mixing seat; 200, valve core assembly; 210, valve core; 220, pull rod; 300, adjusting assembly; 310, shell; 320, motor; 330, screw sleeve; 331, circular ring; 340, screw rod; 400, stabilizing control assembly; 410, supporting rod; 420, guide strip; 430, guide groove; 440, groove; 450, ball; 460, rolling groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-4The embodiment of the utility model provides adjustable ejection nozzle device, including injection subassembly 100, valve core subassembly 200, be used for moving valve core subassembly 200 in the adjustment subassembly 300 of injection subassembly 100 and be used for improving the stability of the movement of valve core subassembly 200 Stability control assembly 400, valve core subassembly 200 is located in the inner chamber of injection subassembly 100, adjustment subassembly 300 is located in one end of injection subassembly 100, and stability control assembly 400 is symmetrically arranged between valve core subassembly 200 and injection subassembly 100 with two;Stability control assembly 400 includes the support rod 410 on valve core subassembly 200, the inner chamber of injection subassembly 100 is equipped with guide strip 420, the one end of support rod 410 towards guide strip 420 is equipped with guide groove 430, and the rolling part is equipped between support rod 410 and guide strip 420.

[0027] Wherein, the rolling part includes recess 440 in the inner chamber of guide groove 430, the inner chamber of recess 440 is movably embedded with ball 450, ball 450 is slidably connected with corresponding guide strip 420, when support rod 410 drives guide groove 430 to slide along the surface of guide strip 420, can drive ball 450 to roll on the surface of guide strip 420, help to reduce the friction between guide groove 430 and guide strip 420, improve the flexibility of support rod 410 when moving, avoid the phenomenon of jam.

[0028] Wherein, the one side of guide strip 420 towards ball 450 is equipped with rolling groove 460, ball 450 is rollingly connected with the inner wall surface of rolling groove 460, and guide strip 420 can guide ball 450 through rolling groove 460, further improve the stability of support rod 410 when moving, so that the movement of valve core subassembly 200 is more conveniently and stably controlled.

[0029] Wherein, injection subassembly 100 includes pipe body 110, one end of pipe body 110 away from adjustment subassembly 300 is equipped with high-pressure medium inlet, the top of pipe body 110 and the side close to high-pressure medium inlet are communicated with first branch pipe 120, the bottom of pipe body 110 and the side close to adjustment subassembly 300 are communicated with second branch pipe 130, one end of first branch pipe 120 away from pipe body 110 is equipped with low-pressure medium inlet, one end of second branch pipe 130 away from pipe body 110 is equipped with medium-pressure medium outlet, and guide strip 420 is fixedly connected to the inner wall surface of pipe body 110 along the axis direction of pipe body 110.

[0030] Wherein, the inner chamber of pipe body 110 and along the medium flow direction are fixedly connected with nozzle 140 and mixing seat 150 in proper order, nozzle 140 is below first branch pipe 120, mixing seat 150 is between first branch pipe 120 and second branch pipe 130, and guide strip 420 is arranged along the axis direction of pipe body 110.

[0031] Wherein, the valve core assembly 200 includes the valve core 210 located in the inner cavity of the pipe body 110, one end of the valve core 210 penetrates to the inner cavity of the nozzle 140 through the mixing seat 150, the other end of the valve core 210 is fixedly connected with the pull rod 220, the end of the pull rod 220 away from the valve core 210 is sealedly penetrated to the outside of the pipe body 110, the end of the support rod 410 away from the guide bar 420 is fixedly connected to the joint of the valve core 210 and the pull rod 220, by adjusting the position of the valve core 210 in the pipe body 110, the valve core 210 is close to or away from the nozzle 140, that is, the flow area of the nozzle 140 outlet can be adjusted, thereby realizing the flow regulation of the ejector.

[0032] Wherein, the adjusting assembly 300 includes the shell 310 installed on the end of the pipe body 110 away from the high medium inlet, the end of the pull rod 220 away from the valve core 210 extends to the inner cavity of the shell 310, the end of the shell 310 away from the pipe body 110 is installed with the motor 320, the output shaft of the motor 320 penetrates to the inner cavity of the shell 310 and is provided with a linkage between the pull rod 220, by starting the motor 320, the valve core assembly 200 can be moved in the inner cavity of the pipe body 110 through the linkage.

[0033] Wherein, the linkage includes the screw sleeve 330 fixedly connected to the output shaft of the motor 320, the inner cavity of the screw sleeve 330 is threadedly connected with the screw rod 340, one end of the screw rod 340 penetrates to the outside of the screw sleeve 330 and is fixedly connected with the pull rod 220, the central axes of the pipe body 110, the nozzle 140, the mixing seat 150, the valve core 210, the pull rod 220, the output shaft of the motor 320, the screw sleeve 330 and the screw rod 340 are on the same straight line, when the output shaft of the motor 320 drives the screw sleeve 330 to rotate, under the action of the screw, the screw rod 340 can be moved in the inner cavity of the screw sleeve 330, and then the screw rod 340 drives the valve core assembly 200 to move in the inner cavity of the pipe body 110 along the axial direction, the outer surface of the screw sleeve 330 is integrally formed with the annular ring 331, the annular ring 331 is rotatably connected with the shell 310 through the bearing, the annular ring 331 can assist the support of the screw sleeve 330, which can ensure the normal rotation of the screw sleeve 330 and improve the stability of the screw sleeve 330 when rotating.

[0034] The utility model discloses a working principle is: through starting motor 320, the output shaft of motor 320 drives screw nut 330 and annular ring 331 rotation, under the action of screw thread, screw nut 330 drives screw rod 340 moves in its inner chamber, and screw rod 340 drives pull rod 220 and valve core 210 synchronous movement, make pull rod 220 gradually close to or away from nozzle 140, make the flow area of nozzle 140 export change along with it, can realize the flow regulation of ejector, simultaneously, pull rod 220 drives support pole 410 synchronous movement, and support pole 410 drives guide groove 430 slide on the surface of guide strip 420, and support pole 410 still drives recess 440 and ball 450 move, make ball 450 roll in the inner chamber of recess 440 and rolling groove 460, to realize the guiding and auxiliary support effect of valve core subassembly 200, prevent valve core subassembly 200 from appearing the phenomenon of wobble or impact inside wall of ejecting assembly 100 in the process of moving, can guarantee the stability of valve core subassembly 200 when moving.

[0035] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable ejection nozzle device, characterized by, The utility model relates to a kind of injection components (100), the inner cavity of which is movably provided with valve core assembly (200), one end of the injection component (100) is provided with adjusting assembly (300) for driving valve core assembly (200) to move in injection component (100), two symmetrically arranged stability control assembly (400) for improving the stability of the movement of valve core assembly (200) are provided between valve core assembly (200) and injection component (100);Wherein, the stability control assembly (400) includes a support rod (410) arranged on the valve core assembly (200), the inner cavity of the injection component (100) is provided with a guide bar (420), a guide groove (430) is formed in one end of the support rod (410) towards the guide bar (420), and a rolling element is arranged between the support rod (410) and the guide bar (420). The rolling element includes a groove (440) formed in the inner cavity of the guide groove (430), the inner cavity of the groove (440) movably embeds a ball (450), and the ball (450) is slidingly connected with the corresponding guide bar (420). The guide bar (420) is provided with a rolling groove (460) on one side towards the ball (450), and the ball (450) is rollingly connected with the inner wall surface of the rolling groove (460).

2. The adjustable ejection nozzle device of claim 1, wherein: The injection component (100) includes a pipe body (110), one end of the pipe body (110) away from the adjusting assembly (300) is provided with a high-pressure medium inlet, the top of the pipe body (110) and one side close to the high-pressure medium inlet are communicated with a first branch pipe (120), the bottom of the pipe body (110) and one side close to the adjusting assembly (300) are communicated with a second branch pipe (130), one end of the first branch pipe (120) away from the pipe body (110) is provided with a low-pressure medium inlet, one end of the second branch pipe (130) away from the pipe body (110) is provided with a medium outlet, and the guide bar (420) is fixedly connected to the inner wall surface of the pipe body (110) along the axis of the pipe body (110).

3. The adjustable ejection nozzle device of claim 2, wherein: The inner cavity of the pipe body (110) and along the medium flow direction are sequentially fixedly connected with a nozzle (140) and a mixing seat (150), the nozzle (140) is located below the first branch pipe (120), the mixing seat (150) is located between the first branch pipe (120) and the second branch pipe (130), and the guide bar (420) is arranged along the axis direction of the pipe body (110).

4. The adjustable ejection nozzle apparatus of claim 1, wherein: The valve core assembly (200) includes a valve core (210) located in the inner cavity of the pipe body (110), one end of the valve core (210) penetrates to the inner cavity of the nozzle (140) through the mixing seat (150), the other end of the valve core (210) is fixedly connected with a pull rod (220), one end of the pull rod (220) away from the valve core (210) is sealingly penetrated to the outside of the pipe body (110), and one end of the support rod (410) away from the guide bar (420) is fixedly connected to the junction of the valve core (210) and the pull rod (220).

5. The adjustable ejection nozzle device of claim 4, wherein: ​ 6. The adjustable ejection nozzle device of claim 5, wherein: ​ 7. The adjustable ejector nozzle apparatus of claim 6, wherein: The adjusting assembly (300) comprises a shell (310) mounted on the pipe body (110) away from the high dielectric inlet end, one end of the pull rod (220) away from the valve core (210) extends to the inner cavity of the shell (310), and the shell (310) is provided with a motor (320) away from one end of the pipe body (110), the output shaft of the motor (320) penetrates into the inner cavity of the shell (310) and is provided with a linkage between the pull rod (220).

8. The adjustable ejector nozzle apparatus of claim 7, wherein: The linkage comprises a screw sleeve (330) fixedly connected to the output shaft of the motor (320), the inner cavity of the screw sleeve (330) is threadedly connected with a screw rod (340), one end of the screw rod (340) penetrates to the outer side of the screw sleeve (330) and is fixedly connected with the pull rod (220), and the central axes of the pipe body (110), the nozzle (140), the mixing seat (150), the valve core (210), the pull rod (220), the output shaft of the motor (320), the screw sleeve (330) and the screw rod (340) are on the same straight line.

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