Multi-nozzle ejector

Abstract

The utility model provides a multi-nozzle ejector, which belongs to the technical field of ejectors and comprises an ejector main body, a low-pressure fluid pipeline is embedded into the side wall of the ejector main body, a high-pressure fluid pipeline is embedded into an inlet of the ejector main body, a nozzle is arranged at the outlet end of the high-pressure fluid pipeline, and a nozzle is arranged at the outlet end of the nozzle. A nozzle assembly used for adjusting fluid pressure is arranged at a nozzle opening of the spray head, a nozzle opening of the nozzle assembly faces the mixing chamber of the ejector body, and finally mixed fluid with the pressure higher than that of the low-pressure suction fluid but lower than that of the high-pressure movement fluid is discharged through the spray head, so that the mixed fluid enters the mixing pipe through the mixing chamber. The fluid is injected from the mixing pipe to the outside through the diffusion pipe, in the process of injecting the mixed fluid, the size of the injected fluid is adjusted through the nozzles of different specifications located on the spray head, adjustment is conducted according to the application environment, and therefore the fluid injection device can be suitable for fluid injection under different conditions, and the situation that the fluid is too large or too small, and the application process is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to ejector technical field, concretely is a kind of multi-nozzle ejector. BACKGROUND

[0002] Ejector utilizes one high-speed high-energy flow (liquid flow, gas flow or other material flow) to eject another low-speed low-energy flow device, jet flow bursts into mixing chamber through contraction nozzle, and its periphery is the ejecting flow. Through the boundary mixing effect, the ejecting flow transmits energy to the ejecting flow. The mixing zone formed by mixing gradually expands to fill the entire mixing chamber, and then after a mixing process, the flow becomes almost uniform at the outlet of the mixing chamber.

[0003] The related technology (publication number: CN212033152U) discloses an ejector, and the disclosed technical scheme is as follows: one end of the piston towards the outlet end of the nozzle flow channel is a variable diameter section with varying cross section, the elastic member is located between the piston and the inner wall of the nozzle, high-pressure hydrogen gas enters from the main fluid inlet, can overcome the elastic force of the elastic member, so that the piston moves in the nozzle, according to the pressure, the piston moves different distances, changes the area of the outlet of the nozzle, realizes the continuous change of the equivalent aperture of the injection port, and the applicable power range is wide.

[0004] In the above disclosed technical scheme, it is found that the related technology has the following problems: in the process of jet flow, the pressure of the fluid cannot be adjusted, so that the ejector cannot be adjusted, and the applicability of the ejector is low. To solve the above problems in the prior art, we propose a new type of multi-nozzle ejector.

[0005] It should be noted that the information disclosed in the above background section is only used to enhance the understanding of the background section of the present application, and therefore can include information that does not constitute prior art known to those skilled in the art. INVENTION CONTENTS

[0006] The utility model aims at least to solve one of the technical problems existing in prior art or related technology, in order to solve the problem of fluid pressure adjustment of ejector in the prior art, the utility model provides a kind of multi-nozzle ejector, adopts multi-nozzle switching structure to combine nozzle direction adjusting mechanism to reach the effect of adjusting fluid pressure. Its specific technical scheme is:

[0007] A kind of multi-nozzle ejector, including ejector main body, low-pressure fluid pipeline is embedded in the side wall of the ejector main body, high-pressure fluid pipeline is embedded in the entrance of the ejector main body, the outlet end of the high-pressure fluid pipeline is provided with spray head, the nozzle assembly for adjusting fluid pressure is provided at the nozzle of the spray head, and the nozzle of the nozzle assembly is towards the mixing chamber of the ejector main body.

[0008] In the above technical solution, the nozzle assembly comprises a first nozzle and a second nozzle embedded in the nozzle head nozzle end respectively, and the second nozzle has a larger size than the first nozzle.

[0009] The inner cavity of the ejector body is provided with a fluid sensor, and the first nozzle and the second nozzle are electrically connected with the fluid sensor.

[0010] A soft connecting pipe is arranged between the high-pressure fluid pipe and the nozzle head, and a rotating assembly for adjusting the direction of the nozzle head is arranged at the connection between the nozzle head and the soft connecting pipe.

[0011] The rotating assembly comprises a movable seat rotatably arranged at the bottom of the inner wall of the ejector body, the movable seat is fixedly installed at the bottom of the outer wall of the nozzle head, and the movable seat is located below the connection between the nozzle head and the soft connecting pipe.

[0012] The outer wall of the nozzle head is symmetrically provided with a limiting piece on both sides for limiting the position of the nozzle head, and the outer wall of the ejector body is provided with an adjusting assembly for driving the two limiting pieces to move synchronously.

[0013] The adjusting assembly comprises a sleeve rotatably arranged on the outer wall of the ejector body, the inner cavity of the sleeve is threadedly connected with a lead screw, and the lead screw penetrates the inner cavity of the sleeve, one end of the lead screw is connected with one end of a movable rod, the other end of the movable rod is fixedly connected with the limiting piece, and the movable rod penetrates the outer wall of the ejector body and extends into the inner cavity, and the outer wall of the ejector body is provided with a rotary driving assembly for driving the sleeve to rotate.

[0014] The movable rod and the lead screw are arranged in parallel with each other.

[0015] The rotary driving assembly comprises a first gear rotatably arranged on the outer wall of the ejector body, and a second gear is sleeved on the outside of the sleeve, and the second gear is engaged with the first gear.

[0016] The inner cavity of the ejector body is provided with a position sensor for detecting the spraying direction of the nozzle head, and the position sensor is electrically connected with the rotary driving assembly.

[0017] Compared with the prior art, the beneficial effects of the multi-nozzle ejector are:

[0018] I. In the process of spraying mixed fluid, the size of the sprayed fluid is adjusted through the nozzles of different sizes on the nozzle head, and the adjustment is made according to the application environment, so that the fluid ejector can be applied to different situations, and the influence of the fluid being too large or too small on the application process is avoided.

[0019] II. The first nozzle and the second nozzle can work separately or simultaneously. The spraying flow can be adjusted according to the requirement of the application equipment, so that the spraying flow with different flow rates can be realized.

[0020] III. The direction of the nozzle is adjusted by rotating the adjusting assembly, so that the direction of the first nozzle and the second nozzle is adjusted during the switching of the spraying, the spraying direction is opposite to the mixing chamber, and the smoothness of the mixed fluid spraying process is ensured.

[0021] IV. The two spherical limiters are simultaneously moved upward or downward by the adjusting assembly, the nozzle is limited by the limiters located on both sides of the nozzle and on the same vertical line, when the two limiters are simultaneously moved upward or downward, the two limiters drive the nozzle located in the middle to move upward or downward, and the operation of the nozzle direction adjusting process is more convenient.

[0022] V. During the adjustment of the spraying direction, the output shaft of the motor drives the first gear to rotate, the second gear meshing with the first gear drives the sleeve to rotate, the lead screw threadedly connected in the sleeve simultaneously drives the limiters connected at both ends to move, and the operation process is more convenient.

[0023] VI. The position sensor timely transmits a signal to the rotary driving assembly when the angle of the nozzle deviates, so that the direction of the nozzle is timely adjusted, and the accuracy of the angle of the nozzle is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of a multi-nozzle ejector of the utility model;

[0025] Figure 2 It is a structural sectional view of a multi-nozzle ejector of the utility model;

[0026] Figure 3 It is Figure 1 It is an enlarged view of A in the utility model;

[0027] Figure 4 It is a partial structural sectional view of a machine cover of the utility model;

[0028] Among them, Figures 1 to 4 The corresponding relationship between the reference signs and the component names in the utility model is as follows: 1-ejector main body, 2-high pressure fluid pipeline, 3-nozzle, 4-first nozzle, 5-second nozzle, 6-low pressure fluid pipeline, 7-soft connecting pipe, 8-movable rod, 9-lead screw, 10-transmission rod, 11-supporting cylinder, 12-second gear, 13-sealing element, 14-fixed rod, 15-fixed seat, 16-limiter, 17-bracket, 18-movable seat, 19-center shaft, 21-machine cover, 22-sleeve, 23-through groove, 24-first gear, 25-motor, 26-fluid sensor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings of 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 of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings of 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 of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Figures 1-4 The utility model will be further described, but the utility model is not limited to these embodiments.

[0031] A kind of multi-nozzle ejector, including ejector main body 1, low-pressure fluid pipe 6 is embedded in the side wall of ejector main body 1.It is embedded in the low-pressure fluid pipe 6 fixedly installed on the side wall of ejector main body 1, and the low-pressure fluid pipe 6 located in the side of ejector main body 1 and perpendicular with the inner cavity of ejector main body 1 is communicated.Low-pressure fluid is introduced to the inside of ejector main body 1 by low-pressure fluid pipe 6.The high-pressure fluid pipe 2 is embedded in the entrance of ejector main body 1.The high-pressure fluid pipe 2 is embedded in the entrance of ejector main body 1 fixedly installed, and the entrance of high-pressure fluid pipe 2 is leveled with the left entrance of ejector main body 1.The fixed seat 15 is fixedly sleeved on the outside of high-pressure fluid pipe 2 in the inner cavity of ejector main body 1, and the outer wall on the upper and lower sides of fixed seat 15 is fixedly connected with the inner wall of ejector main body 1 by fixed rod 14.It guarantees the stability of high-pressure fluid pipe 2 in the inside of ejector main body 1.

[0032] The outlet end of high-pressure fluid pipe 2 is provided with spray head 3, the spray head 3 is provided with nozzle assembly for adjusting fluid pressure at the spray port, and the spray port of nozzle assembly is directed to the mixing chamber of ejector main body 1.Finally, a mixed fluid with pressure higher than low-pressure suction fluid but lower than high-pressure movement fluid is discharged through spray head 3, so that the mixed fluid enters into mixing pipe through mixing chamber, and is sprayed outside by diffusion pipe through mixing pipe.

[0033] In the process of spraying mixed fluid, the size of sprayed fluid is adjusted by different specifications of nozzles located on spray head 3.According to application environment, it can be suitable for fluid injection in different situations, to avoid that fluid is too large or too small to affect application process.

[0034] The nozzle assembly comprises a first nozzle 4 and a second nozzle 5 embedded in the nozzle head 3 respectively, and the size of the second nozzle 5 is larger than that of the first nozzle 4. The first nozzle 4 and the second nozzle 5 are fixedly embedded in the nozzle head 3, and each of the first nozzle 4 and the second nozzle 5 has a respective driver, so that the first nozzle 4 and the second nozzle 5 can work independently or simultaneously. The flow rate of the injection fluid can be adjusted according to the requirements of the application equipment, so that different flow rates of the injection fluid can be realized.

[0035] It is worth noting that the inner cavity of the ejector body 1 is provided with a fluid sensor 26, and the first nozzle 4 and the second nozzle 5 are electrically connected with the fluid sensor 26. The fluid sensor 26 is embedded in the diffuser pipe of the ejector body 1, and the right side injection pipe of the ejector body 1 is sequentially a mixing chamber, a mixing pipe and a diffuser pipe. The fluid sensor 26 located in the diffuser pipe of the ejector body 1 monitors the size of the fluid.

[0036] When the mixed fluid is relatively large, the fluid sensor 26 transmits a signal to the drivers of the first nozzle 4 and the second nozzle 5, so that the second nozzle 5 is closed and the first nozzle 4 is opened. When the mixed fluid is relatively large, the fluid sensor 26 transmits a signal to the drivers of the first nozzle 4 and the second nozzle 5, so that the second nozzle 5 is opened and the first nozzle 4 is closed. When the mixed fluid is still not enough, the fluid sensor 26 transmits a signal to the drivers of the first nozzle 4 and the second nozzle 5, so that the second nozzle 5 and the first nozzle 4 are opened at the same time. Through the automatic adjustment of the fluid sensor 26, the timely adjustment of the fluid speed is ensured.

[0037] In addition, a soft connection pipe 7 is arranged between the high-pressure fluid pipe 2 and the nozzle head 3, and a rotating assembly for adjusting the direction of the nozzle head 3 is arranged at the connection between the nozzle head 3 and the soft connection pipe 7. One end of the soft connection pipe 7 is sealingly connected with the end of the high-pressure fluid pipe 2, and the other end of the soft connection pipe 7 is sealingly connected with the nozzle head 3, so that the direction of the nozzle head 3 can be adjusted by rotating. The direction of the nozzle head 3 is adjusted by the rotating assembly, so that the direction of the nozzle head 3 is adjusted during the switching of the first nozzle 4 and the second nozzle 5, and the smoothness of the mixed fluid injection process is ensured.

[0038] In addition, the rotating assembly comprises a movable seat 18 rotatably arranged at the bottom of the inner wall of the ejector body 1, the movable seat 18 is fixedly arranged at the bottom of the outer wall of the nozzle 3, and the movable seat 18 is located below the connection position of the nozzle 3 and the flexible connecting pipe 7. A support 17 is fixedly arranged at the bottom of the inner wall of the ejector body 1, bearings are embeddedly arranged at both sides of the support 17, and the center shaft 19 is embeddedly arranged at the inner part of the two bearings. The movable seat 18 is fixedly sleeved on the outer part of the center shaft 19 through the through hole penetrating the inner cavity, and the top of the movable seat 18 is fixedly arranged at the bottom of the outer wall of the nozzle 3, so that the nozzle 3 can rotate with the movable seat 18, thereby adjusting the spray angle of the first nozzle 4 and the second nozzle 5.

[0039] Further, the outer wall of the nozzle 3 is symmetrically provided with a limiting piece 16 for limiting the position of the nozzle 3, and the outer wall of the ejector body 1 is provided with an adjusting assembly for simultaneously driving the two limiting pieces 16 to move synchronously. The limiting piece 16 is a spherical body, and the limiting piece 16 of the spherical body is arranged on the inclined surface of the nozzle 3. The two spherical limiting pieces 16 are simultaneously moved upward or downward through the adjusting assembly, and the nozzle 3 is limited by the limiting pieces 16 located on the same vertical line and at both sides of the nozzle 3.

[0040] When the two limiting pieces 16 are simultaneously moved upward or downward, the nozzle 3 located in the middle is simultaneously moved upward or downward by the two limiting pieces 16, so that the operation of the nozzle direction adjusting process is more convenient.

[0041] The adjusting assembly comprises a sleeve 22 rotatably arranged on the outer wall of the ejector body 1, the inner cavity of the sleeve 22 is threadedly connected with a lead screw 9, and the lead screw 9 penetrates the inner cavity of the sleeve 22. The two ends of the lead screw 9 are respectively connected with one end of a movable rod 8, the other end of the movable rod 8 is fixedly connected with the limiting piece 16, the movable rod 8 penetrates the outer wall of the ejector body 1 and extends to the inner cavity, and the outer wall of the ejector body 1 is provided with a rotary driving assembly for driving the sleeve 22 to rotate. The movable rod 8 penetrates the sealing piece 13, and the sealing piece 13 is fixedly arranged on the penetrating hole of the movable rod 8 and the outer wall of the ejector body 1.

[0042] Two support cylinders 11 are fixedly installed on the outer wall of the ejector body 1 on the same vertical line, bearings are embeddedly installed in the inner cavities of the support cylinders 11, the sleeve 22 is simultaneously embeddedly installed in the bearings inside the two support cylinders 11, and the two ends of the sleeve 22 extend out of the two support cylinders 11 respectively. An inner threaded hole corresponding to the lead screw 9 is formed in the inner wall of the sleeve 22. The two ends of the lead screw 9 are fixedly connected with one end of the transmission rod 10 through the first connecting block horizontally, the other end of the transmission rod 10 is fixedly installed on the outer wall of the second connecting block, the second connecting block is fixed on the top end of the movable rod 8, and the bottom end of the movable rod 8 penetrates through the top of the ejector body 1 and extends into the inner cavity, so that the movable rod 8 slides in the penetrating hole of the ejector body 1, and the bottom end of the movable rod 8 is fixed on the outer wall top of the limiting piece 16.

[0043] When the angles of the first nozzle 4 and the second nozzle 5 are adjusted, the sleeve 22 on the two support cylinders 11 is driven to rotate through the rotating driving assembly, so that the lead screw 9 threadedly connected with the sleeve 22 drives the two transmission rods 10 to move simultaneously, so that the two transmission rods 10 drive the limiting pieces 16 on the two sides of the nozzle 3 to move synchronously through the two movable rods 8. The angles of the first nozzle 4 and the second nozzle 5 are adjusted through the position change of the two limiting pieces 16, so that the adjustment process of the spraying direction is more convenient

[0044] The movable rod 8 and the lead screw 9 are arranged in parallel with each other. The parallel movable rod 8 with the lead screw 9 ensures the stability of the moving direction of the limiting piece 16, avoids the position deviation, and thus ensures the accuracy of the spraying direction adjustment.

[0045] The rotating driving assembly comprises a first gear 24 rotatably arranged on the outer wall of the ejector body 1, the outer sleeve of the sleeve 22 is sleeved with a second gear 12, and the second gear 12 is engaged with the first gear 24. The motor 25 is fixed on the outer wall of the ejector body 1 through the machine cover 21, and the motor 25 is electrically connected with the external power supply through wires. The first gear 24 is fixedly sleeved on the outer part of the output shaft of the motor 25 through the center installation hole, the through slot 23 is formed on the machine cover 21 at the position corresponding to the second gear 12, the second gear 12 is fixedly sleeved on the outer part of the sleeve 22 through the center installation hole, and the second gear 12 penetrates through the through slot 23 and is engaged with the first gear 24 in the machine cover 21.

[0046] When the spraying direction is adjusted, the motor 25 is connected to the power supply, so that the output shaft of the motor 25 drives the first gear 24 to rotate, so that the second gear 12 engaged with the first gear 24 drives the sleeve 22 to rotate. The lead screw 9 threadedly connected with the sleeve 22 drives the limiting pieces 16 connected at the two ends to move simultaneously, so that the operation process is more convenient.

[0047] The inner cavity of the ejector body 1 is provided with a position sensor for detecting the spraying direction of the nozzle 3, and the position sensor is electrically connected with the rotary driving assembly.

[0048] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated, so that the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0050] In the present application, unless otherwise specified and limited, the terms "mounting", "setting", "connecting", "fixing", "threading" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specified, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-nozzle ejector comprising an ejector body (1) whose lateral wall is embedded with a low-pressure fluid duct (6), characterized in that: The high-pressure fluid pipe (2) is provided with a nozzle assembly for adjusting the fluid pressure at the nozzle of the spray head (3), and the nozzle of the nozzle assembly faces the mixing chamber of the ejector body (1). The nozzle assembly comprises a first nozzle (4) and a second nozzle (5) embedded in the nozzle end of the spray head (3) respectively, and the specification of the second nozzle (5) is larger than that of the first nozzle (4).

2. A multiple nozzle ejector as claimed in claim 1, wherein: The inner cavity of the ejector body (1) is provided with a fluid sensor (26), and the first nozzle (4) and the second nozzle (5) are electrically connected with the fluid sensor (26).

3. A multiple nozzle ejector as claimed in claim 1, wherein: A soft connecting pipe (7) is provided between the high-pressure fluid pipe (2) and the spray head (3), and a rotating assembly for adjusting the direction of the spray head (3) is provided at the connection between the spray head (3) and the soft connecting pipe (7).

4. A multiple nozzle ejector as claimed in claim 3, wherein: The rotating assembly comprises a movable seat (18) rotatably arranged on the inner wall bottom of the ejector body (1), the movable seat (18) is fixedly installed on the outer wall bottom of the spray head (3), and the movable seat (18) is located below the connection between the spray head (3) and the soft connecting pipe (7).

5. A multiple nozzle ejector as claimed in claim 1, wherein: The outer wall of the spray head (3) is symmetrically provided with a limiting piece (16) on both sides for limiting the position of the spray head (3), and the outer wall of the ejector body (1) is provided with an adjusting assembly for driving the two limiting pieces (16) to move synchronously.

6. A multiple nozzle ejector as claimed in claim 5, wherein: The adjusting assembly comprises a sleeve (22) rotatably arranged on the outer wall of the ejector body (1), the inner cavity of the sleeve (22) is threadedly connected with a lead screw (9), and the lead screw (9) penetrates the inner cavity of the sleeve (22), one end of the lead screw (9) is connected with one end of a movable rod (8) respectively, the other end of the movable rod (8) is fixedly connected with the limiting piece (16), and the movable rod (8) penetrates the outer wall of the ejector body (1) and extends into the inner cavity, and the outer wall of the ejector body (1) is provided with a rotary driving assembly for driving the sleeve (22) to rotate.

7. A multiple nozzle ejector as claimed in claim 6, wherein: The movable rod (8) and the lead screw (9) are arranged in parallel with each other.

8. A multiple nozzle ejector as claimed in claim 6, wherein: The rotary driving assembly comprises a first gear (24) rotatably arranged on the outer wall of the ejector body (1), and a second gear (12) is sleeved on the outside of the sleeve (22), and the second gear (12) is engaged with the first gear (24).

9. A multiple nozzle ejector as claimed in claim 6, wherein: The inner cavity of the ejector body (1) is provided with a position sensor for detecting the spraying direction of the spray head (3), and the position sensor is electrically connected with the rotary driving assembly.

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