CN216063813U - Double-gas inlet adjustable venturi ejector - Google Patents
Double-gas inlet adjustable venturi ejector Download PDFInfo
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- CN216063813U CN216063813U CN202122041056.XU CN202122041056U CN216063813U CN 216063813 U CN216063813 U CN 216063813U CN 202122041056 U CN202122041056 U CN 202122041056U CN 216063813 U CN216063813 U CN 216063813U
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000009792 diffusion process Methods 0.000 claims abstract description 5
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model provides a double-gas-inlet adjustable Venturi ejector applied to the technical field of gas-liquid jet mixing. The air suction chamber, the convergence section, the mixing section and the diffusion section are connected in a welding mode. The sealing block is connected with the air suction chamber in a welding mode, a sealing ring is arranged on one side of the interior of the sealing block, and two symmetrically-distributed grooves are formed in the other side of the interior of the sealing block and matched with the sliding block. The slider has two, central symmetry distribution, with the nozzle adopts welded connection, and with the sealed piece indent formation cooperation. The flange is in threaded connection with the nozzle, and the screwing length of the threads is adjustable. The utility model relates to a double-gas-inlet adjustable Venturi ejector, which can avoid the problem of uneven gas inlet, can adjust the air inflow by adjusting the throat nozzle distance, can adapt to complicated and variable working conditions, and has the advantages of simple structure and convenient assembly, disassembly and maintenance.
Description
Technical Field
The utility model belongs to the technical field of liquid injection gas-liquid mixing, and particularly relates to a double-gas-inlet adjustable venturi ejector.
Background
The venturi ejector is a device for ejecting another fluid by means of low pressure and even negative pressure formed by high-speed flowing fluid, can strengthen the mixing of gas and liquid phases, has the advantages of simple structure, high mixing efficiency and the like, and is widely applied to the fields of pharmacy, fine chemical industry, refrigeration, aerospace and the like. In the process of gas-liquid two-phase mixing reaction, the suction volume of the venturi ejector has important influence on the gas-liquid two-phase reaction, so the suction volume of the venturi ejector needs to be increased to promote the gas-liquid two-phase mixing, but the existing venturi ejector has the following defects:
1) the single-side gas storage causes that after the gas is injected into the Venturi ejector, the gas at the same side position with the gas inlet is more, and the gas at the other side is less, so that the gas-liquid mixing is not uniform, and the production efficiency is not favorably improved;
2) the structure size is fixed, can't adjust the air input in actual production, leads to the unable complicated changeable operating mode of reply of venturi sprayer, and operation elasticity is low.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides an adjustable venturi ejector with double gas inlets, which has the characteristics of double gas symmetrical inlets, adjustable nozzles and the like.
In order to achieve the purpose, the utility model provides the following technical scheme: the adjustable double-gas inlet Venturi ejector consists of a converging section, a gas inlet, a suction chamber, a sliding block, a flange, a sealing block, a nozzle, a mixing section and a diffusing section. The two gas inlets are centrosymmetric to the axis of the air suction chamber and are connected with the air suction chamber in a welding mode; the axes of the suction chamber, the flange, the convergent section, the nozzle, the seal block, the mixing section, and the divergent section all coincide with each other; the air suction chamber, the convergence section, the mixing section and the diffusion section are connected in sequence in a welding mode; the nozzle is inserted into the air suction chamber from the central axis of the other side of the air suction chamber, and one side of the nozzle is provided with an external thread.
Furthermore, the sealing block is cylindrical and is connected with the air suction chamber in a welding mode, a sealing ring is arranged on one side of the sealing block and forms sealing with the nozzle to prevent the medium from leaking from the air suction chamber, and two symmetrically distributed grooves are formed in the other side of the sealing block and are matched with the sliding block.
Furthermore, the two sliding blocks are distributed in a central symmetry manner, are connected with the nozzle in a welding manner, and are matched with the concave groove in the sealing block, so that the nozzle can only slide along the concave groove and cannot rotate.
Furthermore, there is the internal thread on above-mentioned flange one side, and there is the external screw thread on above-mentioned nozzle one side, and both carry out threaded connection and the screw thread closes the adjustable length soon.
Further, under the condition that the relative position of the flange is not changed, the screwing length between the flange and the nozzle can be changed by rotating the flange, so that the nozzle slides along the groove, the coaxiality is ensured, and the distance (throat distance) between the nozzle and the mixing section is adjusted.
Because the utility model adopts the technical scheme, the technical effects are obvious:
1) the design of the double gas inlets of the Venturi ejector can effectively avoid the conditions of non-uniformity and deflection generated when the gas enters the air suction chamber and the convergence section through the traditional single gas inlet. The air intake efficiency can be improved, the air intake range can be enlarged, the load of a single air inlet can be reduced, and the like.
2) According to the design of the sealing block and the sliding blocks of the Venturi ejector, the sealing block can effectively prevent medium leakage and limit the position of the nozzle, the two sliding blocks can prevent the nozzle from rotating, and the matching precision of the nozzle and the sealing block is improved.
3) According to the venturi ejector nozzle and the design of the flange, the nozzle is in threaded connection with the flange, the screwing length of the threads is adjustable, and the screwing length is changed, so that the throat nozzle distance is changed, the purpose of adjusting and controlling the air inflow is achieved, and the nozzle is not required to be detached when the throat nozzle distance is adjusted, so that the venturi ejector is simple, convenient and quick, can be used for complicated and changeable working conditions, and is high in operation elasticity and wide in application range.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a double-gas inlet adjustable Venturi ejector.
FIG. 2 is a close-up view of a dual gas inlet adjustable venturi ejector.
In the figure: 1 convergence section, 2 gas inlet, 3 suction chamber, 4 slide block, 5 flange, 6 sealing block, 7 nozzle, 8 mixing section and 9 diffusion section.
Detailed Description
The utility model is further illustrated by the following embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, the double gas inlet adjustable venturi ejector is composed of a convergent section 1, a gas inlet 2, a suction chamber 3, a slider 4, a flange 5, a sealing block 6, a nozzle 7, a mixing section 8, and a diffuser section 9. The number of the gas inlets 2 is two, the centers of the gas inlets are symmetrical to the axis of the air suction chamber 3, and the gas inlets are connected with the air suction chamber 3 in a welding mode; the axes of the suction chamber 3, the flange 5, the convergent section 1, the nozzle 7, the seal block 6, the mixing section 8, and the divergent section 9 all coincide with each other; the air suction chamber 3, the convergent section 1, the mixing section 8 and the divergent section 9 are connected in sequence by welding; the sealing block 6 is welded with the air suction chamber 3, a sealing ring is arranged on one side of the interior of the sealing block, and two symmetrically distributed grooves are formed in the other side of the interior of the sealing block and matched with the sliding block 4; the two sliding blocks 4 are distributed in a central symmetry manner, are connected with the nozzle 7 in a welding manner and are matched with the concave groove of the sealing block 6; the flange 5 has an internal thread on one side thereof, and the nozzle 7 has an external thread on one side thereof, which are connected by a thread and have an adjustable thread screwing length.
The working process of the utility model is as follows: liquid enters a nozzle 7 from a liquid inlet pipe at the flange 5 and reaches the outlet of the nozzle 7, the pipe diameter is reduced, pressure energy is converted into kinetic energy, the flow rate is accelerated, the pressure is reduced, the liquid is sprayed out at the outlet of the nozzle 7 at a high speed, a negative pressure area is formed at a convergence section 1, a pressure difference is formed between a gas inlet and the convergence section, gas enters an air suction chamber 3 from a gas inlet 2 and is injected into the convergence section 1, then gas and liquid phases start to contact, the gas is sheared at a high speed at the mixing section 8 to enable the gas and liquid phases to be mixed violently, the kinetic energy of the mixed fluid is converted into the pressure energy at a diffusion section 9, the speed is reduced, the pressure is increased, and the two fluids are further mixed and then sprayed out. When the air suction quantity is difficult to meet the requirement, the throat distance from the outlet of the nozzle 7 to the mixing section 8 can be adjusted by adjusting the screwing length between the nozzle 7 and the flange 5, so that the area of a low-pressure area at the outlet of the nozzle 7 is changed, the purpose of adjusting the air flow is achieved, and the air suction quantity of the ejector is maintained in a target range.
The above embodiments are merely illustrative and not restrictive of the technical solutions of the present invention. Any modification or partial replacement without departing from the spirit of the present invention should be covered in the scope of the claims of the present invention.
Claims (4)
1. The adjustable Venturi ejector with double gas inlets is characterized by comprising a convergence section, a gas inlet, a suction chamber, a sliding block, a flange, a sealing block, a nozzle, a mixing section and a diffusion section.
Wherein, each part is connected as follows: the two gas inlets are centrosymmetric to the axis of the gas suction chamber and are connected with the gas suction chamber in a welding mode; the air suction chamber, the convergent section, the mixing section and the divergent section are connected in a welding mode; the sealing block is connected with the air suction chamber in a welding mode, a sealing ring is arranged on one side of the interior of the sealing block, and two symmetrically distributed grooves are formed in the other side of the interior of the sealing block and matched with the sliding block; the two sliding blocks are distributed in a central symmetry manner, are connected with the nozzle in a welding manner and are matched with the inner grooves of the sealing block; the flange is connected with the nozzle through threads, and the screwing length of the threads is adjustable.
2. The dual gas inlet adjustable venturi injector of claim 1, wherein said suction chamber is provided with two of said gas inlets which are centrally symmetric about said suction chamber axis and are welded to said suction chamber.
3. The dual gas inlet adjustable venturi injector of claim 1, wherein said sealing block is welded to said suction chamber, and has a sealing ring on one side and symmetrically disposed grooves on the other side, and said slider is movable in said grooves.
4. The dual gas inlet adjustable venturi injector of claim 1, wherein said nozzle is threadably connected to said flange and the throat spacing is adjustable by adjusting the length of the threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122041056.XU CN216063813U (en) | 2021-08-27 | 2021-08-27 | Double-gas inlet adjustable venturi ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122041056.XU CN216063813U (en) | 2021-08-27 | 2021-08-27 | Double-gas inlet adjustable venturi ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216063813U true CN216063813U (en) | 2022-03-18 |
Family
ID=80672724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122041056.XU Active CN216063813U (en) | 2021-08-27 | 2021-08-27 | Double-gas inlet adjustable venturi ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216063813U (en) |
-
2021
- 2021-08-27 CN CN202122041056.XU patent/CN216063813U/en active Active
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