Steel lining plastic venturi ejector

Abstract

The utility model relates to the technical field of venturi ejectors, in particular to a steel lining plastic venturi ejector which can enable gas to be evenly distributed and enter an ejector outer cylinder from different angles of different places, is beneficial to entering of the gas and even mixing of the two kinds of gas, and brings convenience to an operator to adjust flow according to requirements. Comprising an ejector outer barrel, a spray head, a venturi injection pipe, two air inlet pipes, a speed adjusting assembly and an air inlet assembly, the spray head is fixedly connected to the right end of the ejector outer barrel, the venturi injection pipe is slidably installed on the left side wall of the ejector outer barrel, a spray nozzle is arranged at the right end of the venturi injection pipe, and the air inlet assembly is installed in the ejector outer barrel. The two air inlet pipes are fixedly connected to the upper end and the lower end of the ejector outer cylinder, the output ends of the air inlet pipes communicate with the interior of the air inlet assembly, the speed adjusting assembly is installed at the left end of the interior of the ejector outer cylinder, and the output end of the speed adjusting assembly is connected with the venturi injection pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of venturi injectors, in particular to a steel-lined plastic venturi injector. Background Art

[0002] The jet mixer is a commonly used device for achieving rapid gas-gas mixing. The mixing method is generally to eject a fluid from a nozzle to form a local negative pressure, and then suck in another fluid for mixing. Prior art publication number CN203448003U includes an air inlet pipe, a contraction section, and a nozzle. The air inlet pipe, the contraction section, and the nozzle are connected in sequence. The nozzle is a conical tube that contracts from the inlet to the outlet, and the contraction angle of the tube is 8-15°. It has a simple structure, which is conducive to increasing the jet flow rate of the gas. It not only plays a jetting role, but also is more conducive to sending the gas into the throat for uniform mixing. However, when in use, the ejected flow rate cannot be controlled. When the flow rate needs to be adjusted, the flow rate at the input end is generally adjusted, which is inconvenient to adjust, and multiple materials cannot be mixed during use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a steel-lined plastic venturi injector which can evenly distribute the gas and enter the outer tube of the injector from different places and angles, which is beneficial to the entry of gas and the uniform mixing of the two gases, and is convenient for operators to adjust the flow rate according to needs.

[0004] The utility model discloses a steel-lined plastic venturi injector, comprising an injector outer cylinder, a nozzle, a venturi injection tube, two air inlet pipes, a speed regulating assembly and an air inlet assembly, wherein the nozzle is fixedly connected to the right end of the injector outer cylinder, the venturi injection tube is slidably mounted on the left side wall of the injector outer cylinder, the right end of the venturi injection tube is arranged as a nozzle, the air inlet assembly is mounted inside the injector outer cylinder, the two air inlet pipes are fixedly connected to the upper and lower ends of the injector outer cylinder, and the output ends of the air inlet pipes are communicated with the inside of the air inlet assembly, the speed regulating assembly is mounted on the inner left end of the injector outer cylinder, and the output end of the speed regulating assembly is connected with the venturi injection tube; the gas enters the air inlet assembly through the air inlet pipe, is evenly distributed in the air inlet assembly, and enters the injector outer cylinder from different places and different angles, so as to achieve the effect of uniform gas entering the mixer and small resistance, which is more conducive to the entry of gas and the even mixing of two gases, and the speed regulating assembly can adjust the position of the venturi injection tube and the air inlet assembly, adjust the flow rate, and facilitate the operator to adjust the flow rate according to the demand.

[0005] Preferably, the air intake assembly includes an air intake cylinder and multiple guide pipes, the air intake cylinder is fixedly connected to the inner wall of the outer cylinder of the injector to form an air intake cavity between the air intake cylinder and the inner wall of the outer cylinder of the injector, the left and right ends of the air intake cylinder are set as bell mouths, and the right side is larger than the left side, the middle part of the air intake cylinder is set as an air intake channel, and the multiple guide pipes are evenly connected to the middle air intake channel of the air intake cylinder, and the output ends of the guide pipes are inclined toward the direction of the nozzle; the gas enters the air intake cavity through the air intake pipe, is evenly distributed in the air intake cavity, and enters the air intake channel at different angles through the guide pipes, so that the gas is uniform and the resistance is small, which is conducive to the entry of gas and the uniform mixing of the two gases.

[0006] Preferably, the speed regulating assembly includes a plurality of electric telescopic rods and a pushing plate, wherein the plurality of electric telescopic rods are axially mounted on the left inner wall of the injector outer cylinder with respect to the Venturi injection tube, and the telescopic ends of the electric telescopic rods are fixedly connected with the pushing plate, and the pushing plate is fixedly sleeved on the outer wall of the Venturi injection tube; starting the electric telescopic rods pushes the Venturi injection tube to move in the injector outer cylinder through the pushing plate, thereby adjusting the distance between the nozzle of the Venturi injection tube and the left side of the air inlet cylinder, and adjusting the flow rate, making it convenient for the operator to adjust the flow rate according to demand.

[0007] Preferably, it also includes a support plate and a support sleeve, the support plate is fixedly connected to the inner wall of the injector outer cylinder, the support sleeve is fixedly installed in the middle of the support plate, and the Venturi injection tube is seal-slidably installed in the middle of the support sleeve; when the Venturi injection tube moves inside the injector outer cylinder, the Venturi injection tube is supported by the support plate and the support sleeve to ensure stability, so that the nozzle of the Venturi injection tube is located in the center of the air intake channel, and at the same time the support plate can ensure the sealing between the chamber between the left end of the air intake cylinder.

[0008] Preferably, a connector is provided at the input end of the Venturi injection tube; the connector facilitates the connection of the Venturi injection tube to the gas source, thereby improving convenience.

[0009] Preferably, the input end of the air inlet pipe is connected to an air inlet flange, and the output end of the nozzle is connected to a connecting flange; the air inlet flange is used to facilitate connection of the air inlet pipe to the input pipe, so that the input pipe is connected to the inside of the liner, and the toxic gas in the liner is extracted; the connecting flange can connect the nozzle to the collecting vessel.

[0010] Preferably, a plurality of spoilers are evenly installed axially on the inner wall of the nozzle; the gas is guided by the spoilers and mixed under the action of the circumferential flow, which can improve the mixing effect.

[0011] Compared with the prior art, the utility model has the following beneficial effects: gas enters the air intake assembly from the air intake pipe, is evenly distributed in the air intake assembly, and enters the outer tube of the ejector from different places and angles, achieving the effect of uniform gas entering the mixer with low resistance, which is more conducive to the entry of gas and uniform mixing of the two gases. The speed regulating assembly can adjust the position of the Venturi ejector pipe and the air intake assembly and adjust the flow rate, making it convenient for the operator to adjust the flow rate according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model;

[0015] Figure 4 It is a partial structural schematic diagram of the utility model;

[0016] Figure 5 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0017] Markings in the attached drawings: 1. injector outer tube; 2. nozzle; 3. venturi injection tube; 4. air intake pipe; 5. air intake cylinder; 6. guide tube; 7. electric telescopic rod; 8. push plate; 9. support plate; 10. support sleeve; 11. joint; 12. air intake flange; 13. connecting flange; 14. spoiler. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] like Figures 1 to 5As shown, the nozzle 2 is fixedly connected to the right end of the injector outer tube 1, and a plurality of spoilers 14 are evenly installed axially on the inner wall of the nozzle 2. The venturi injection tube 3 is slidably installed on the left side wall of the injector outer tube 1, and the right end of the venturi injection tube 3 is set as a nozzle. Two air intake pipes 4 are fixedly connected to the upper and lower ends of the injector outer tube 1, and the air intake cylinder 5 is fixedly connected to the inner wall of the injector outer tube 1, so that an air intake cavity is formed between the air intake cylinder 5 and the inner wall of the injector outer tube 1, and the left and right ends of the air intake cylinder 5 are set as bell mouths, and the right side is larger than the left side. The middle part of the air intake cylinder 5 is set as an air intake channel, and a plurality of guide pipes 6 are evenly connected to the middle air intake channel of the air intake cylinder 5. The output end is inclined in the direction of the nozzle 2, the output end of the air inlet pipe 4 is connected to the air inlet cavity, a plurality of electric telescopic rods 7 are axially installed on the left inner wall of the injector outer tube 1 about the Venturi injection tube 3, the telescopic end of the electric telescopic rod 7 is fixedly connected with a push plate 8, the push plate 8 is fixedly sleeved on the outer wall of the Venturi injection tube 3, the support plate 9 is fixedly connected to the inner wall of the injector outer tube 1, the middle part of the support plate 9 is fixedly installed with a support sleeve 10, the Venturi injection tube 3 is sealingly slidably installed in the middle part of the support sleeve 10, the input end of the Venturi injection tube 3 is provided with a joint 11, the input end of the air inlet pipe 4 is connected with an air inlet flange 12, and the output end of the nozzle 2 is connected with a connecting flange 13;

[0020] The air inlet flange 12 is used to connect the air inlet pipe 4 to the input pipe, so that the input pipe is connected to the inside of the liner and the toxic gas in the liner is extracted. The connecting flange 13 can connect the nozzle 2 to the collecting container. The gas enters the air inlet cavity from the air inlet pipe 4 and is evenly distributed in the air inlet cavity. The gas enters the air inlet channel at different angles through the guide pipe 6, so that the gas is uniform and has low resistance, which is conducive to the entry of the gas and the uniform mixing of the two gases. The venturi injection tube 3 is conveniently connected to the gas source through the joint 11 to improve convenience. The electric telescopic rod 7 is started to push the venturi injection tube 3 in the injector through the push plate 8. Move inside the outer tube 1 to adjust the distance between the nozzle of the Venturi injection tube 3 and the left side of the air intake tube 5, and adjust the flow rate, which is convenient for the operator to adjust the flow rate according to needs. When the Venturi injection tube 3 moves inside the injector outer tube 1, the Venturi injection tube 3 is supported by the support plate 9 and the support sleeve 10 to ensure stability, so that the nozzle of the Venturi injection tube 3 is located at the center of the air intake channel. At the same time, the support plate 9 can ensure the sealing between the chamber and the left end of the air intake tube 5. The gas is guided by the spoiler 14 and mixed under the action of the circumferential flow, which can improve the mixing effect.

[0021] like Figures 1 to 5As shown, the utility model is a steel-lined plastic venturi injector, which, when working, connects the intake pipe 4 with the input pipe through the intake flange 12, so that the input pipe is connected to the inside of the liner, and the toxic gas in the liner is extracted, and the connecting flange 13 can connect the nozzle 2 with the collecting vessel, and the gas enters the intake cavity from the intake pipe 4 and is evenly distributed in the intake cavity, and enters the intake channel at different angles through the guide tube 6, so that the gas is uniform and has small resistance, and the venturi injection tube 3 is connected to the gas source through the joint 11, and the electric telescopic rod 7 is started to push the venturi injection tube 3 to move in the injector outer tube 1 through the push plate 8, and the distance between the nozzle of the venturi injection tube 3 and the left side of the intake tube 5 is adjusted to adjust the flow rate. When the venturi injection tube 3 moves inside the injector outer tube 1, the venturi injection tube 3 is supported by the support plate 9 and the support sleeve 10 to ensure stability, so that the nozzle of the venturi injection tube 3 is located at the center of the intake channel.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steel-lined plastic venturi injector, characterized in that: The invention comprises an ejector outer cylinder (1), a nozzle (2), a venturi ejection pipe (3), two air intake pipes (4), a speed regulating assembly and an air intake assembly, wherein the nozzle (2) is fixedly connected to the right end of the ejector outer cylinder (1), the venturi ejection pipe (3) is slidably mounted on the left side wall of the ejector outer cylinder (1), the right end of the venturi ejection pipe (3) is arranged as a nozzle, the air intake assembly is mounted inside the ejector outer cylinder (1), the two air intake pipes (4) are fixedly connected to the upper and lower ends of the ejector outer cylinder (1), and the output end of the air intake pipe (4) is communicated with the inside of the air intake assembly, and the speed regulating assembly is mounted on the left end inside the ejector outer cylinder (1), and the output end of the speed regulating assembly is connected to the venturi ejection pipe (3).

2. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: The air intake assembly comprises an air intake cylinder (5) and a plurality of flow guide pipes (6). The air intake cylinder (5) is fixedly connected to the inner wall of the ejector outer cylinder (1) so that an air intake cavity is formed between the air intake cylinder (5) and the inner wall of the ejector outer cylinder (1). The left and right ends of the air intake cylinder (5) are arranged as bell mouths, and the right side is larger than the left side. The middle part of the air intake cylinder (5) is arranged as an air intake channel. The plurality of flow guide pipes (6) are evenly connected to the middle air intake channel of the air intake cylinder (5). The output end of the flow guide pipe (6) is inclined in the direction of the nozzle (2).

3. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: The speed regulating assembly comprises a plurality of electric telescopic rods (7) and a push plate (8); the plurality of electric telescopic rods (7) are axially mounted on the left inner wall of the injector outer tube (1) with respect to the Venturi injection tube (3); the telescopic ends of the electric telescopic rods (7) are fixedly connected to the push plate (8); and the push plate (8) is fixedly sleeved on the outer wall of the Venturi injection tube (3).

4. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: It also comprises a support plate (9) and a support sleeve (10), wherein the support plate (9) is fixedly connected to the inner wall of the injector outer tube (1), the support sleeve (10) is fixedly mounted in the middle of the support plate (9), and the Venturi injection tube (3) is sealingly slidably mounted in the middle of the support sleeve (10).

5. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: The input end of the Venturi injection tube (3) is provided with a connector (11).

6. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: The input end of the air intake pipe (4) is connected to an air intake flange (12), and the output end of the nozzle (2) is connected to a connecting flange (13).

7. A steel-lined plastic venturi injector as claimed in claim 1, characterized in that: A plurality of spoilers (14) are evenly mounted axially on the inner wall of the nozzle (2).

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