Jet device array group with proportional valve mechanism

Abstract

The invention belongs to the technical field of jet devices, and discloses a jet device array group with a proportional valve mechanism, which comprises a first inlet pipe, a pneumatic proportional valve arranged at the top of the first inlet pipe, a first connecting pipe arranged at one end of the first inlet pipe, three conveying pipes arranged at the top of the first connecting pipe, and a pneumatic butterfly valve arranged at one end of each of the three conveying pipes. A second inlet pipe is arranged at the top of the pneumatic butterfly valve, an ejector is arranged at the top of the second inlet pipe, and a second connecting pipe is arranged at the top of the ejector. Through the first air inlet pipe and the second air inlet pipe, the jet devices enable a carbon dioxide injection mode to be more stable, after carbon dioxide is injected at 25 DEG C, the carbon dioxide can be filled into a bottle without bubbling, a large-flow ice water machine and a heat exchanger are not needed to cool a beverage to be less than 12 DEG C, and a plurality of jet devices can be installed at the same time. And the PLC is used for controlling the valve to change the flow, so that automatic adjustment of different filling quantities is achieved, and the filling machine can be adapted to more product lines and has multiple purposes.

Description

Technical Field

[0001] The invention belongs to the technical field of ejectors, and in particular relates to an ejector array group with a proportional valve mechanism. Background Art

[0002] In the production process of carbonated beverages, a large amount of carbon dioxide gas is dissolved in the beverage by pressurizing it. The ejector is a device that injects carbon dioxide into the beverage. The full name of the proportional valve is the electro-hydraulic proportional valve. It is a hydraulic valve that converts the input electrical signal into force or displacement in proportion, thereby continuously controlling parameters such as pressure and flow. The ejector is continuously controlled by the proportional valve mechanism, so that carbon dioxide is injected into the beverage when it passes through the ejector.

[0003] However, in the prior art, the ejector can only inject carbon dioxide when the medium is greater than 12°C and then fill it into the bottle to produce bubbles. As the temperature rises, the movement of water molecules intensifies, which makes it easier for carbon dioxide molecules to escape from the water, resulting in reduced solubility, which makes carbonated beverages bubbling and unsuitable for filling. Summary of the invention

[0004] In view of the problems in the prior art, the present invention proposes the following technical solutions: an ejector array group with a proportional valve mechanism, comprising a first inlet pipe, a pneumatic proportional valve is arranged on the top of the first inlet pipe, a first connecting pipe is arranged at one end of the first inlet pipe, three delivery pipes are arranged on the top of the first connecting pipe, a pneumatic butterfly valve is arranged at one end of the three delivery pipes, a second inlet pipe is arranged on the top of the pneumatic butterfly valve, an ejector is arranged on the top of the second inlet pipe, a second connecting pipe is arranged on the top of the ejector, a flow pipe is arranged on the top of the second connecting pipe, an air intake pipe is arranged on one side of the ejector, a pneumatic stop valve is arranged on one end of the air intake pipe close to the ejector, a pneumatic angle seat valve is arranged in the middle of the air intake pipe, the other end of the air intake pipe is connected by a third connecting pipe, a first air inlet is arranged inside the ejector, a second air inlet is arranged on the top of the first air inlet, a sealing block is arranged on one side of the pneumatic stop valve and located on one side of the ejector, a protective block is arranged on the outside of the pneumatic stop valve, a limiting block is arranged on the outside of the sealing block, and a limiting structure is arranged on the outside of the limiting block.

[0005] As a preferred embodiment of the above technical solution, the number of pneumatic butterfly valves, ejectors, pneumatic angle seat valves and delivery pipes is the same. The three delivery pipes, pneumatic butterfly valves, ejectors and pneumatic angle seat valves are distributed in a linear array. The two ejectors on the left and the ejectors on the right are respectively composed of two groups connected in parallel. An air inlet hole is opened on one side of the ejector. One end of the air inlet pipe passes through the middle of the protective block, and the other end passes through the air inlet hole and extends to the inside of the ejector. The ejector is connected to the second connecting pipe through the first air inlet and the second air inlet. The size of the first air inlet is 7x5mm through hole, and the size of the second air inlet is 0.75mm gap.

[0006] As a preferred embodiment of the above technical solution, one side of the protective block is fixedly installed on one side of the ejector, a mounting opening is provided on the top of the protective block, the sealing block is located between the air inlet and the connecting block, the limiting blocks are distributed in a circular array with the sealing block as the center, the limiting block is provided with an arc groove, and the inner wall of the arc groove is in contact with the outer side of the sealing block.

[0007] As a preferred embodiment of the above technical solution, the limiting structure includes a turning knob, a threaded rod is fixedly installed on the top of the turning knob, a connecting block is rotatably connected to the bottom of the threaded rod, one end of the threaded rod is threadedly connected to a threaded block, both ends of the threaded block are movably connected to limiting rods, and both ends of the threaded block are hinged at the bottom with a rotating plate hingedly connected to the bottom, a fixed rod is fixedly connected to one side of the rotating plate and located at the bottom of the threaded block, the bottom of the fixed rod and the limiting block on the top of the sealing block are fixedly installed, and a movable structure is provided at the bottom of the rotating plate and on the outside of the limiting block located on both sides and the bottom of the sealing block.

[0008] As a preferred embodiment of the above technical solution, the movable structure includes a first rack, the bottom of the first rack is hinged to the end of the rotating plate away from the threaded block, the bottom of the first rack is meshed with a gear, the bottom of the gear is meshed with a second rack, the bottom of the second rack is fixedly connected to a fixed block, one side of the fixed block is fixedly installed with the limiting blocks on both sides of the sealing block, the bottom of the fixed block is fixedly connected to a moving rod, the bottom of the limiting block located at the bottom of the sealing block is fixedly installed with a movable rod, and the bottom of the movable rod is fixedly installed with a round convex.

[0009] As a preferred embodiment of the above technical solution, the knob is located at the top of the protective block, one side of the connecting block is fixedly installed on one side of the ejector, the bottom of the limiting rod is fixedly installed on the inner wall of the top of the protective block, and its bottom is fixedly installed on the top of the connecting block, the fixed rod is located between the connecting block and the rotating plate, and the movable structure is symmetrically arranged around the center of the sealing block.

[0010] As a preferred embodiment of the above technical solution, a mounting plate is provided on one side of the first rack and the second rack, one side of the mounting plate is fixedly mounted to the inner wall of the protective block, a moving block is fixedly mounted on one side of the first rack and the second rack, one side of the moving block is slidably connected to the mounting plate, a rotating shaft is fixedly mounted in the middle of the gear, and one end of the rotating shaft is rotatably connected to the mounting plate.

[0011] As a preferred embodiment of the above technical solution, the shape of the moving rod is L-shaped, one end of the moving rod is located at the bottom of the limiting block at the bottom of the sealing block, the bottom of the moving rod is slidingly connected to the inner wall of the bottom of the protective block, the end of the moving rod close to it is a slope, and the convex part is located at the top of the slope.

[0012] As a preferred embodiment of the above technical solution, a detector is fixedly installed on the inner wall of the protective block, an electric telescopic block is arranged on the outside of the pneumatic stop valve, one side of the electric telescopic block is fixedly installed on the inner wall of the protective block, a through hole is opened at the telescopic end of the electric telescopic block, and the through hole is arranged corresponding to the limiting block.

[0013] The beneficial effects of the present invention are:

[0014] (1) The present invention uses the first air inlet pipe and the second air inlet pipe to make the carbon dioxide injection method more stable. After the carbon dioxide is injected at 25°C, it can be filled into the bottle without bubbling. It does not require a large-flow ice water machine and a heat exchanger to cool the beverage to less than 12°C, which allows production equipment to save energy and reduce emissions. In addition, multiple groups of ejectors can be installed at the same time, and PLC can be used to control the valve to change the flow rate to achieve automatic adjustment of different filling volumes. It can adapt to more product lines and achieve multiple uses of one machine.

[0015] (2) The present invention uses a protective block, a sealing block and a limiting structure to ensure that the connection between the air intake pipe and the ejector is sealed and stable when the ejector injects carbon dioxide, so that leakage will not occur during the process of injecting carbon dioxide through the ejector, resulting in unstable pressure, thereby affecting the injection of carbon dioxide, and further improving the stability of the carbon dioxide injection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0017] Figure 2 What is shown is a side view of the overall structure of the embodiment;

[0018] Figure 3 Shown is a structural diagram of an ejector, a protection block and an air intake pipe of an embodiment;

[0019] Figure 4 Shown is a cross-sectional view of an embodiment of the ejector and a protection block;

[0020] Figure 5 What is shown is the internal structure diagram of the protection block of the embodiment;

[0021] Figure 6 Shown is a structural diagram of a sealing block, a limiting block and a limiting structure of an embodiment;

[0022] Figure 7 Shown is a structural diagram of the embodiment limiting structure and the moving structure;

[0023] Figure 8 Shown is a structural diagram of an electric telescopic block according to an embodiment.

[0024] In the figure: 1. first inlet pipe; 2. pneumatic proportional valve; 3. first connecting pipe; 4. delivery pipe; 5. pneumatic butterfly valve; 6. second inlet pipe; 7. ejector; 8. second connecting pipe; 9. flow pipe; 10. air inlet pipe; 11. pneumatic stop valve; 12. pneumatic angle seat valve; 13. third connecting pipe; 14. first air inlet; 15. second air inlet; 16. sealing block; 17. protective block; 18. limiting block; 19. knob; 20. threaded rod; 21. threaded block; 22. rotating plate; 23. fixed rod; 24. moving structure; 241. first rack; 242. gear; 243. second rack; 244. fixed block; 245. moving rod; 246. movable rod; 247. convex; 25. mounting plate; 26. moving block; 27. detector; 28. electric telescopic block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] The present invention provides an ejector array with a proportional valve mechanism, such as Figures 1 to 5 As shown, it includes a first inlet pipe 1, a pneumatic proportional valve 2 is arranged on the top of the first inlet pipe 1, a first connecting pipe 3 is arranged at one end of the first inlet pipe 1, three delivery pipes 4 are arranged on the top of the first connecting pipe 3, a pneumatic butterfly valve 5 is arranged at one end of the three delivery pipes 4, a second inlet pipe 6 is arranged on the top of the pneumatic butterfly valve 5, an ejector 7 is arranged on the top of the second inlet pipe 6, a second connecting pipe 8 is arranged on the top of the ejector 7, a flow pipe 9 is arranged on the top of the second connecting pipe 8, an air intake pipe 10 is arranged on one side of the ejector 7, and the air intake pipe 10 is close to the A pneumatic stop valve 11 is provided at one end of the near ejector 7, a pneumatic angle seat valve 12 is provided in the middle of the intake pipe 10, the other end of the intake pipe 10 is connected by a third connecting pipe 13, a first air inlet 14 is provided inside the ejector 7, a second air inlet 15 is provided on the top of the first air inlet 14, a sealing block 16 is provided on one side of the pneumatic stop valve 11 and located on one side of the ejector 7, a protective block 17 is provided on the outside of the pneumatic stop valve 11, a limiting block 18 is provided on the outside of the sealing block 16, and a limiting structure is provided on the outside of the limiting block 18.

[0027] The beverage is delivered through the first inlet pipe 1, the pneumatic proportional valve 2 is started to deliver the beverage from the first inlet pipe 1 to the inside of the three delivery pipes 4, the pneumatic butterfly valve 5 is started to deliver the beverage into the second inlet pipe 6, and then into the inside of the ejector 7. When the beverage passes through the jet inside the ejector 7, carbon dioxide is injected into the inside of the ejector 7 through the air inlet pipe 10, and then delivered to the bottle filling through the flow pipe 9. Multiple groups of ejectors 7 can also be installed at the same time to improve the effect of injecting carbon dioxide into the beverage, and by controlling the pneumatic proportional valve 2 and the pneumatic butterfly valve 5 To change the flow rate, achieve automatic adjustment of different filling volumes, adapt to more product lines, and achieve multi-purpose use of one machine. The sealing between the air inlet pipe 10 and the ejector 7 is improved by the sealing block 16. The limiting block 18 limits the sealing block 16 through the limiting structure, so that the limiting block 18 can press the sealing block 16 to prevent leakage between the air inlet hole and the air inlet pipe 10, thereby causing the air inlet pipe 10 to inject carbon dioxide into the ejector 7 Unstable, so that the beverage filled into the bottle after the carbon dioxide is injected at 25°C will not bubble, which is convenient for filling.

[0028] like Figures 1 to 4 As shown, the number of pneumatic butterfly valves 5, ejectors 7, pneumatic angle seat valves 12 and delivery pipes 4 is the same, and the three delivery pipes 4, the pneumatic butterfly valves 5, ejectors 7 and pneumatic angle seat valves 12 are distributed in a linear array, the two ejectors 7 on the left and the ejectors 7 on the right are respectively composed of two groups of parallel combinations, an air inlet hole is opened on one side of the ejector 7, one end of the air inlet pipe 10 passes through the middle of the protective block 17, and the other end passes through the air inlet hole and extends to the inside of the ejector 7, the ejector 7 is connected to the second connecting pipe 8 through the first air inlet port 14 and the second air inlet port 15, the size of the first air inlet port 14 is a 7x5mm through hole, and the size of the second air inlet port 15 is a 0.75mm gap.

[0029] Since the equipment consists of two 6m 3 / h ejector 7 and a 3m 3 / h ejectors 7 are connected in parallel. When the filling volume reaches 15m 3 / h requires the corresponding pneumatic proportional valve 2, pneumatic butterfly valve 5 and pneumatic angle seat valve 12 of the three ejectors 7 to be fully opened. If the filling volume reaches 12m 3 / h requires the corresponding pneumatic butterfly valves 5 and pneumatic angle seat valves 12 of the three ejectors 7 to be fully opened and the front pneumatic proportional valve 2 to be adjusted to feed 12m 3 / h. Similarly, if the filling volume reaches 3m 3 / h only needs to open the pneumatic butterfly valve 5, pneumatic stop valve 11, and pneumatic proportional valve 2 at the bottom of the right ejector 7 to feed 3m 3 / h, carbon dioxide gas is injected through the first air inlet 14 and the second air inlet 15. The 7x5mm through hole of the first air inlet 14 allows most of the carbon dioxide to be injected into the beverage, and then the beverage is injected for the second time through the 0.75mm gap of the second air inlet 15, so that the carbon dioxide in the beverage is more stable. After the carbon dioxide is injected at 25°C, it is filled into the bottle without bubbling.

[0030] like Figures 3 to 6 As shown, one side of the protective block 17 is fixedly installed with one side of the ejector 7, a mounting opening is provided on the top of the protective block 17, the sealing block 16 is located between the air inlet and the connecting block, the limiting blocks 18 are distributed in a circular array with the sealing block 16 as the center, and the limiting blocks 18 are provided with an arc groove, the inner wall of the arc groove is in contact with the outer side of the sealing block 16.

[0031] The limiting block 18 is fitted and limited from the outside of the sealing block 16 to improve the sealing between the intake pipe 10 and the ejector 7. The protective block 17 is convenient for protecting the pneumatic stop valve 11, the limiting block 18 and the limiting structure outside the sealing block 16 to prevent the limiting structure from being damaged. The limiting block 18 affects the limitation of the sealing block 16, causing the intake pipe 10 and the intake hole to leak, thereby affecting the pressure during carbon dioxide injection, resulting in instability during carbon dioxide injection and affecting the filling effect.

[0032] like Figures 5 to 7 As shown, the limiting structure includes a knob 19, a threaded rod 20 is fixedly installed on the top of the knob 19, a connecting block is rotatably connected to the bottom of the threaded rod 20, one end of the threaded rod 20 is threadedly connected to a threaded block 21, both ends of the threaded block 21 are movably connected to limiting rods, and rotating plates 22 are hinged at the bottom of both ends of the threaded block 21. A fixing rod 23 is fixedly connected to one side of the rotating plate 22 and located at the bottom of the threaded block 21. The bottom of the fixing rod 23 is fixedly installed with the limiting block 18 at the top of the sealing block 16, and a movable structure 24 is provided at the bottom of the rotating plate 22 and located on both sides of the sealing block 16 and outside the limiting block 18 at the bottom.

[0033] The threaded rod 20 is driven to rotate along the connecting block by rotating the knob 19, and the threaded block 21 is caused to move up and down along the threaded rod 20 through the limiting effect of the limiting rod. When the threaded block 21 moves, it drives the fixed rod 23 and the limiting block 18 at the top of the sealing block 16 to move, so that the limiting block 18 limits the top of the sealing block 16, and when the threaded block 21 moves, the rotating plate 22 is deflected, so that the rotating plate 22 drives the moving structure 24 to move, so that the limiting block 18 can limit the sealing block 16 at the same time, so as to improve the sealing performance of the sealing block 16 between the intake pipe 10 and the intake hole.

[0034] like Figures 6 to 8As shown, the movable structure 24 includes a first rack 241, the bottom of the first rack 241 is hinged to the end of the rotating plate 22 away from the threaded block 21, the bottom of the first rack 241 is meshed with a gear 242, the bottom of the gear 242 is meshed with a second rack 243, the bottom of the second rack 243 is fixedly connected to a fixed block 244, one side of the fixed block 244 is fixedly installed with the limiting blocks 18 on both sides of the sealing block 16, the bottom of the fixed block 244 is fixedly connected to a moving rod 245, the bottom of the limiting block 18 located at the bottom of the sealing block 16 is fixedly installed with a movable rod 246, and the bottom of the movable rod 246 is fixedly installed with a round protrusion 247.

[0035] When the rotating plate 22 deflects toward both sides of the threaded rod 20, it pushes the first rack 241 to move toward the inner wall of the protective block 17, so that the gear 242 rotates, and the second rack 243 drives the connecting block and the limiting blocks 18 on both sides of the sealing block 16 to move toward one side of the sealing block 16. At the same time, the connecting block drives the moving rod 245 to move, so that one end of the moving rod 245 moves close to each other to the bottom of the limiting block 18 at the bottom of the sealing block 16. When the threaded block 21 drives the fixed rod 23 and the arc groove of the limiting block 18 at the top of the sealing block 16 to fit and limit with the top of the sealing block 16, the second rack 243 drives the arc grooves of the limiting blocks 18 on both sides of the sealing block 16 to fit and limit with both sides of the sealing block 16. At the same time, the moving rod 245 squeezes the convex protrusion 247, so that the movable rod 246 drives the arc groove of the limiting block 18 at the bottom of the sealing block 16 to fit with the bottom of the sealing block 16, so that the four limiting blocks 18 can limit the sealing block 16 at the same time, so as to maintain the sealing and stability between the ejector 7 and the intake pipe 10.

[0036] like Figures 6 to 8 As shown, the knob 19 is located at the top of the protective block 17, one side of the connecting block is fixedly installed with one side of the ejector 7, the bottom of the limiting rod is fixedly installed with the inner wall of the top of the protective block 17, and its bottom is fixedly installed with the top of the connecting block, the fixed rod 23 is located between the connecting block and the rotating plate 22, and the movable structure 24 is symmetrically arranged with the center of the sealing block 16.

[0037] The threaded rod 20 can be driven to rotate by rotating the knob 19, and the threaded rod 20 can be fixed by the connecting block to keep the threaded rod 20 stable during rotation. The threaded block 21 can be moved up and down along the threaded rod 20 by the limiting rod, thereby driving the rotating plate 22 to deflect and moving the symmetrically arranged moving structure 24 to move, so that the limiting block 18 can limit the sealing block 16.

[0038] like Figures 5 and 6As shown, a mounting plate 25 is provided on one side of the first rack 241 and the second rack 243, and one side of the mounting plate 25 is fixedly mounted to the inner wall of the protective block 17. A moving block 26 is fixedly mounted on one side of the first rack 241 and the second rack 243, and one side of the moving block 26 is slidably connected to the mounting plate 25. A rotating shaft is fixedly mounted in the middle of the gear 242, and one end of the rotating shaft is rotatably connected to the mounting plate 25.

[0039] When the rotating plate 22 is deflected, the first rack 241 drives the moving block 26 to move along the mounting plate 25 toward the protective block 17, and the gear 242 drives the rotating shaft to rotate along the mounting plate 25, and the second rack 243 drives the moving block 26 to move along the mounting plate 25 toward the sealing block 16. The mounting plate 25 facilitates the first rack 241 and the second rack 243 to remain stable when moving, and the gear 242 to remain stable when rotating, thereby facilitating the movement of the limiting plate to limit the sealing block 16.

[0040] like Figure 6 to Figure 7 As shown, the shape of the moving rod 245 is L-shaped, one end of the moving rod 245 is located at the bottom of the limiting block 18 at the bottom of the sealing block 16, the bottom of the moving rod 245 is slidably connected to the inner wall of the bottom of the protective block 17, and the moving rod 245 is close to one end as a slope, and the round protrusion 247 is located at the top of the slope.

[0041] Through the L-shaped moving rod 245, when the second rack 243 drives the connecting block to move, one end of the moving rod 245 can move to the bottom of the limiting block 18 at the bottom of the sealing block 16. Since the moving rod 245 is close to one end with a slope, the round protrusion 247 moves to the top of the slope, so that the movable rod 246 drives the limiting block 18 at the bottom of the sealing block 16 to limit the bottom of the sealing block 16, so that the bottom of the sealing block 16 can be limited, which is convenient for the use of the high limiting block 18.

[0042] like Figures 7 and 8 As shown, a detector 27 is fixedly installed on the inner wall of the protective block 17, and an electric telescopic block 28 is arranged on the outer side of the pneumatic stop valve 11. One side of the electric telescopic block 28 is fixedly installed on the inner wall of the protective block 17, and a through hole is opened at the telescopic end of the electric telescopic block 28, which is arranged corresponding to the limiting block 18.

[0043] When the detector 27 inside the protective block 17 detects a leak, the electric telescopic block 28 is started to move toward the ejector 7, so that the telescopic end of the electric telescopic block 28 moves to the outside of the pneumatic stop valve 11 and the sealing block 16, so that the limiting block 18 is located at the through hole, so that the electric telescopic block 28 can cover the sealing block 16 and the air inlet hole to prevent the connection between the ejector 7 and the air inlet pipe 10 from leaking again, thereby facilitating maintenance.

[0044] Working principle: When in use, the beverage is delivered through the first inlet pipe 1, the pneumatic proportional valve 2 is started to deliver the beverage from the first inlet pipe 1 to the inside of the three delivery pipes 4, the pneumatic butterfly valve 5 is started to deliver the beverage into the second inlet pipe 6, and enters the inside of the ejector 7. When the jet passes through the inside of the ejector 7, carbon dioxide is injected into the inside of the ejector 7 through the air inlet pipe 10, and carbon dioxide gas is injected through the first air inlet 14 and the second air inlet 15. The through hole of the first air inlet 14 with a size of 7x5mm allows most of the carbon dioxide to be injected into the beverage, and then the beverage is injected twice from the gap of the second air inlet 15 with a size of 0.75mm, and then it is delivered to the bottle for filling through the second connecting pipe 8 and the circulation pipe 9. Since the equipment consists of two 6m 3 / h ejector 7 and a 3m 3 / h ejectors 7 are connected in parallel. When the filling volume reaches 15m 3 / h requires the corresponding pneumatic proportional valve 2, pneumatic butterfly valve 5 and pneumatic angle seat valve 12 of the three ejectors 7 to be fully opened. If the filling volume needs to reach 12m 3 / h requires the corresponding pneumatic butterfly valves 5 and pneumatic angle seat valves 12 of the three ejectors 7 to be fully opened and the front pneumatic proportional valve 2 to be adjusted to feed 12m 3 / h. Similarly, if the filling volume reaches 3m 3 / h only needs to open the pneumatic butterfly valve 5, pneumatic stop valve 11, and pneumatic proportional valve 2 at the bottom of the right jet to feed 3m 3 / h, so that after injecting carbon dioxide at 25°C, it can be filled into the bottle without bubbling.

[0045] When carbon dioxide needs to be injected, the threaded rod 20 is driven to rotate along the connecting block by rotating the knob 19. The threaded block 21 moves up and down along the threaded rod 20 through the limiting effect of the limiting rod. When the threaded block 21 moves, it drives the fixed rod 23 and the limiting block 18 at the top of the sealing block 16 to move, so that the limiting block 18 limits the top of the sealing block 16, and when the threaded block 21 moves, the rotating plate 22 is deflected, so that the rotating plate 22 drives the first rack 241 and the moving block 26 to move along the mounting plate 25 toward the inner wall of the protective block 17, so that the gear 242 drives the rotating shaft to rotate, and the second rack 243 drives the moving block 26 to move along the mounting plate 25, so that the limiting blocks 18 on both sides of the connecting block and the sealing block 16 move toward one side of the sealing block 16. At the same time, the connecting block drives the moving rod 245 to move, so that one end of the moving rod 245 moves close to each other to the bottom of the limiting block 18 at the bottom of the sealing block 16. When the threaded block 21 drives the fixed rod 23 and the arc groove of the limiting block 18 at the top of the sealing block 16 and the sealing block 1 When the top of the sealing block 16 is fitted and limited, the second rack 243 drives the arc grooves of the limiting blocks 18 on both sides of the sealing block 16 to fit and limit the two sides of the sealing block 16. Since the end of the moving rod 245 close to the inclined surface makes the round protrusion 247 move to the top of the inclined surface, so that the movable rod 246 drives the limiting block 18 at the bottom of the sealing block 16 to limit the bottom of the sealing block 16. The moving rod 245 squeezes the round protrusion 247, so that the movable rod 246 drives the arc groove of the limiting block 18 at the bottom of the sealing block 16 to fit and limit the bottom of the sealing block 16. The four limiting blocks 18 are fitted together, so that it is convenient for the four limiting blocks 18 to limit the sealing block 16 at the same time. When the detector 27 inside the protective block 17 detects a leak, the electric telescopic block 28 is started to move toward the ejector 7, so that the telescopic end of the electric telescopic block 28 moves to the outside of the pneumatic stop valve 11 and the sealing block 16, so that the limiting block 18 is located at the through hole, so that the electric telescopic block 28 can cover the sealing block 16 and the air inlet hole to prevent the ejector 7 and the air inlet pipe 10 from leaking again, thereby facilitating maintenance.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. An array of ejectors (7) with a proportional valve mechanism, comprising a first inlet pipe (1), characterized in that: A pneumatic proportional valve (2) is arranged at the top of the first inlet pipe (1); a first connecting pipe (3) is arranged at one end of the first inlet pipe (1); three delivery pipes (4) are arranged at the top of the first connecting pipe (3); a pneumatic butterfly valve (5) is arranged at one end of the three delivery pipes (4); a second inlet pipe (6) is arranged at the top of the pneumatic butterfly valve (5); an ejector (7) is arranged at the top of the second inlet pipe (6); a second connecting pipe (8) is arranged at the top of the ejector (7); a flow pipe (9) is arranged at the top of the second connecting pipe (8); an air inlet pipe (10) is arranged on one side of the ejector (7); the air inlet pipe (10) is close to the ejector A pneumatic stop valve (11) is arranged at one end of the ejector (7), a pneumatic angle seat valve (12) is arranged in the middle of the air intake pipe (10), the other end of the air intake pipe (10) is connected via a third connecting pipe (13), a first air inlet (14) is arranged inside the ejector (7), a second air inlet (15) is arranged on the top of the first air inlet (14), a sealing block (16) is arranged on one side of the pneumatic stop valve (11) and located on one side of the ejector (7), a protective block (17) is arranged on the outside of the pneumatic stop valve (11), a limiting block (18) is arranged on the outside of the sealing block (16), and a limiting structure is arranged on the outside of the limiting block (18).

2. An ejector (7) array with a proportional valve mechanism according to claim 1, characterized in that: The number of the pneumatic butterfly valve (5), the ejector (7), the pneumatic angle seat valve (12) and the delivery pipe (4) is the same; the three delivery pipes (4), the pneumatic butterfly valve (5), the ejector (7) and the pneumatic angle seat valve (12) are arranged in a linear array; the two ejectors (7) on the left and the ejector (7) on the right are respectively formed by two groups connected in parallel; an air inlet hole is provided on one side of the ejector (7); one end of the air inlet pipe (10) passes through the middle of the protective block (17), and the other end passes through the air inlet hole and extends to the inside of the ejector (7); the ejector (7) is connected to the second connecting pipe (8) through a first air inlet (14) and a second air inlet (15); the first air inlet (14) is a 7x5mm through hole, and the second air inlet (15) is a 0.75mm gap.

3. An ejector (7) array with a proportional valve mechanism according to claim 1, characterized in that: One side of the protective block (17) is fixedly mounted on one side of the ejector (7); a mounting opening is provided on the top of the protective block (17); the sealing block (16) is located between the air inlet and the connecting block; the limiting blocks (18) are distributed in a circular array with the sealing block (16) as the center; the limiting blocks (18) are provided with an arc groove, and the inner wall of the arc groove is in contact with the outer side of the sealing block (16).

4. An ejector (7) array with a proportional valve mechanism according to claim 1, characterized in that: The limiting structure comprises a rotating knob (19), a threaded rod (20) is fixedly mounted on the top of the rotating knob (19), a connecting block is rotatably connected to the bottom of the threaded rod (20), one end of the threaded rod (20) is threadedly connected to a threaded block (21), both ends of the threaded block (21) are movably connected to limiting rods, a rotating plate (22) is hingedly connected to the bottom of both ends of the threaded block (21), a fixed rod (23) is fixedly connected to one side of the rotating plate (22) and located at the bottom of the threaded block (21), the bottom of the fixed rod (23) is fixedly mounted to the limiting block (18) at the top of the sealing block (16), and a movable structure (24) is arranged at the bottom of the rotating plate (22) and located on both sides of the sealing block (16) and outside the limiting block (18) at the bottom.

5. An ejector (7) array with a proportional valve mechanism according to claim 4, characterized in that: The movable structure (24) comprises a first rack (241), the bottom of the first rack (241) is hinged to one end of the rotating plate (22) away from the threaded block (21), the bottom of the first rack (241) is meshed with a gear (242), the bottom of the gear (242) is meshed with a second rack (243), the bottom of the second rack (243) is fixedly connected to a fixed block (244), one side of the fixed block (244) is fixedly installed with the limiting blocks (18) on both sides of the sealing block (16), the bottom of the fixed block (244) is fixedly connected to a movable rod (245), the bottom of the limiting block (18) located at the bottom of the sealing block (16) is fixedly installed with a movable rod (246), and the bottom of the movable rod (246) is fixedly installed with a round protrusion (247).

6. An ejector (7) array with a proportional valve mechanism according to claim 4, characterized in that: The knob (19) is located at the top of the protective block (17), one side of the connecting block is fixedly mounted to one side of the ejector (7), the bottom of the limiting rod is fixedly mounted to the inner wall of the top of the protective block (17), and its bottom is fixedly mounted to the top of the connecting block, the fixing rod (23) is located between the connecting block and the rotating plate (22), and the moving structure (24) is symmetrically arranged around the center of the sealing block (16).

7. An ejector (7) array with a proportional valve mechanism according to claim 5, characterized in that: A mounting plate (25) is provided on one side of the first rack (241) and the second rack (243), and one side of the mounting plate (25) is fixedly mounted on the inner wall of the protective block (17). A moving block (26) is fixedly mounted on one side of the first rack (241) and the second rack (243), and one side of the moving block (26) is slidably connected to the mounting plate (25). A rotating shaft is fixedly mounted in the middle of the gear (242), and one end of the rotating shaft is rotatably connected to the mounting plate (25).

8. An ejector (7) array with a proportional valve mechanism according to claim 5, characterized in that: The movable rod (245) is in an L-shape, one end of the movable rod (245) is located at the bottom of the limiting block (18) at the bottom of the sealing block (16), the bottom of the movable rod (245) is slidably connected to the inner wall of the bottom of the protective block (17), the movable rod (245) is close to one end and is an inclined surface, and the round protrusion (247) is located at the top of the inclined surface.

9. An ejector (7) array with a proportional valve mechanism according to claim 1, characterized in that: A detector (27) is fixedly mounted on the inner wall of the protective block (17); an electric telescopic block (28) is arranged on the outer side of the pneumatic stop valve (11); one side of the electric telescopic block (28) is fixedly mounted on the inner wall of the protective block (17); a through hole is provided at the telescopic end of the electric telescopic block (28); and the through hole is arranged corresponding to the limiting block (18).

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