CN214635503U - Pressure-adjustable low venturi high-efficiency jet suction funnel - Google Patents
Pressure-adjustable low venturi high-efficiency jet suction funnel Download PDFInfo
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- CN214635503U CN214635503U CN202120563300.6U CN202120563300U CN214635503U CN 214635503 U CN214635503 U CN 214635503U CN 202120563300 U CN202120563300 U CN 202120563300U CN 214635503 U CN214635503 U CN 214635503U
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- 238000009792 diffusion process Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 22
- 210000001503 joint Anatomy 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims 5
- 239000000203 mixture Substances 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 16
- 239000000843 powder Substances 0.000 abstract description 10
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 32
- 239000011268 mixed slurry Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to a high-efficient suction funnel that sprays of height-adjustable dwarfing venturi belongs to oil drilling and production engineering supporting tool technical field. The device consists of a mixed diffusion reversing output pipeline and a controllable blind plug, wherein a pressure supply pipe assembly is fixedly arranged on the left side of a dwarfing shell assembly, a mixed diffusion reversing output pipeline is fixedly arranged on the right side of the dwarfing shell assembly, and a jacket layer funnel and a controllable blind plug are fixedly arranged above the mixed diffusion reversing output pipeline. The utility model is provided with the throttle valve at the high-pressure end of the Venturi pump, which can ensure that the centrifugal pump has reasonable jet speed and larger flow under the condition of bearing 0.4Mpa pressure and unchanging total flow when in use, thereby avoiding the damage of the motor caused by the circuit being choked; and when the piston pump is used, the piston pump can have higher pumping injection speed at 0.4-4 Mpa, a powder dome which is not easy to collapse is prevented from being formed at a negative pressure port, and the materials continuously and efficiently flow into the piston pump, so that the height and the weight of the whole equipment are reduced.
Description
Technical Field
The utility model relates to a high-efficient suction funnel that sprays of height-adjustable dwarfing venturi belongs to oil drilling and production engineering supporting tool technical field.
Background
In the petroleum industry, a large amount of powder, heavy materials or other chemical materials need to be added in the drilling and production process, and a main tool for adding the raw materials is a Venturi jet funnel; the diameter of the nozzle of the venturi jet funnel which is adopted at present is relatively fixed and can not be adjusted randomly along with the requirements of field use, which brings inconvenience for field use, for example, the nozzle with a large size is difficult to satisfy the flow of a piston pump when satisfying the flow of a centrifugal pump. The nozzle with smaller size is easy to cause the centrifugal pump to be subjected to pressure-holding tripping to burn out a circuit and a motor when the high pressure of the piston pump is met, and the unified use of two kinds of discharge capacities and pressure cannot be considered. On the other hand, because the efflux basin area is too little for current venturi jet funnel, the powder in the funnel very easily forms the crane span structure, and the vacuum vault top surface that leads to the crane span structure in the twinkling of an eye vacuum leads to being taken out the compaction tightly, and the powder should not collapse the whereabouts, has greatly influenced the batching progress, and then has influenced the construction progress of drilling the process.
Disclosure of Invention
The object of the present invention is to provide a method for controlling the flow rate of a centrifugal pump, which comprises the steps of setting a throttle valve at the high-pressure end of the venturi pump, opening the throttle valve when using the centrifugal pump, so as to ensure that the centrifugal pump has a reasonable jet flow rate and a large flow rate under the condition of bearing 0.4Mpa pressure and keeping the total flow rate unchanged, thereby preventing the circuit from being throttled or causing the motor to be damaged; and close the choke valve gradually when using the piston pump, reduce the liquid stream sectional area, realize the piston pump at the higher injection speed of 0.4 ~ 4Mpa, keep higher suction negative pressure and the high adjustable pressure of the higher driving force in low-pressure zone low dwarfing venturi high efficiency injection suction funnel.
The utility model discloses a realize above-mentioned purpose through following technical scheme:
the pressure-adjustable low-dwarfing venturi high-efficiency jet suction funnel is composed of a pressure supply pipe assembly, a dwarfing shell assembly, a sleeve layer funnel, a mixed diffusion reversing output pipeline and a controllable blind plug.
The pressure supply pipe assembly comprises a throttle valve, a pressure supply branch pipe a, a pressure supply branch pipe b, a pressure supply branch pipe c, a union, a nozzle seat, a nozzle, a plug, a shunt pipe and an adjusting screw rod, wherein the union is arranged at the left end of the pressure supply branch pipe b, the pressure supply branch pipe c is fixedly arranged at the right end of the pressure supply branch pipe b, the nozzle is arranged on the pressure supply branch pipe c through the nozzle seat, and the plugs are fixedly arranged at two ends of the pressure supply branch pipe c; and a pressure supply branch pipe a is fixedly arranged above the pressure supply branch pipe b, a throttle valve is arranged on the pressure supply branch pipe a, an adjusting screw rod is arranged at the upper end of the throttle valve, and a shunt pipe is fixedly arranged on the right side of the throttle valve.
The dwarfing shell assembly is composed of a dwarfing shell, a funnel connecting flange, a discharge port connecting flange, a nozzle butt joint inlet and a discharge port, wherein the nozzle butt joint inlet is formed at the left end of the dwarfing shell, the discharge port connecting flange is formed at the right end of the dwarfing shell, the discharge port is formed at the upper part of the dwarfing shell, and the funnel connecting flange is formed on the discharge port.
The mantle layer funnel constitute by outer funnel, inlayer funnel, reposition of redundant personnel coupling and bottom surface flange, the inlayer funnel dress is in outer funnel, the upper and lower end weak point of inlayer funnel is in outer funnel, be formed with the inside and outside communicating gap in upper portion inclosed cavity and lower part between the two, shunt tubes coupling is equipped with to one side of outer funnel, reposition of redundant personnel coupling and inclosed cavity intercommunication, bottom surface flange is equipped with to the lower extreme of outer funnel.
The mixed diffusion reversing output pipeline is composed of a reversing output pipe, a side connecting flange and a mixed slurry conveying pipe joint, one end of the reversing output pipe is a small rectangular pipe, the other end of the reversing output pipe is a square pipe, a trapezoid pipe is excessively formed between the small rectangular pipe and the square pipe to be connected, the side connecting flange is manufactured at the two ends of the reversing output pipe, and the mixed slurry conveying pipe joint is installed at the right end of the reversing output pipe through the side connecting flange.
The controllable blind plug is arranged at the lower end of the inner part of the sleeve layer funnel.
The right end of the mixed diffusion reversing output pipeline is provided with a mixed pulp conveying pipe through a mixed pulp conveying pipe joint.
The throttle valve is communicated with a closed cavity between the inner layer funnel and the outer layer funnel through a shunt pipe and a shunt pipe joint.
The nozzle on the pressure supply pipe assembly is inserted in the nozzle pair access port of the dwarfing shell assembly, the sleeve layer funnel is connected with the funnel connecting flange on the dwarfing shell assembly through the bottom connecting flange at the lower end, and the mixed diffusion reversing output pipeline is connected with the discharge port connecting flange on the dwarfing shell assembly through the side connecting flange.
Compared with the prior art, the utility model beneficial effect lie in:
the high-efficiency venturi jet suction funnel with the adjustable pressure and the adjustable height is characterized in that a throttle valve is arranged at the high-pressure end of a venturi pump, and the throttle valve is opened when the centrifugal pump is used, so that the centrifugal pump can bear the pressure of 0.4Mpa and has higher flow under the condition that the total flow is not changed, and the motor is not damaged due to the circuit being suppressed; and when the piston pump is used, the throttle valve is closed, the sectional area of liquid flow is reduced, and the piston pump has higher pumping and jetting speed at 0.4-4 Mpa and higher driving force in a low-pressure area. In addition, the jet speed and the basin area are increased by the low-dwarfing multi-nozzle design, the jacketed funnel is a cavity with an inner interlayer and an outer interlayer, liquid can flow out of a gap downwards when the poured material enters the funnel and then slides down to the bottom of the inner layer, the pressure-reducing liquid flow injected and flowing out of the cavity carries the high-speed jet negative pressure area flowing into the front end of the nozzle, a powder dome which is not easy to collapse is prevented from being formed at the negative pressure port, the material can continuously and efficiently flow in, the high material mixing efficiency is realized, the height and the weight of the whole equipment are reduced, the installation layout of a limited space is avoided, and better man-machine engineering is achieved.
Drawings
FIG. 1 is a schematic structural view of a variable pressure low dwarfing venturi high efficiency jet aspiration funnel;
FIG. 2 is a schematic cross-sectional structural view of a variable pressure low dwarfing venturi high efficiency jet aspiration funnel;
FIG. 3 is a schematic structural view of a pressure supply tube assembly;
FIG. 4 is a schematic view of the dwarfing housing assembly;
FIG. 5 is a schematic structural diagram of a jacketed hopper;
FIG. 6 is a schematic structural view of the jacketed hopper after a controllable blind plug is installed therein;
FIG. 7 is a schematic structural view of the pressure supply pipe assembly combined with the dwarfing housing assembly;
FIG. 8 is a schematic view of the combination of the pressure supply pipe assembly, the dwarfing housing assembly, the jacketed hopper, and the mixed diffusion reversing output line;
FIG. 9 is a schematic view of the use of the variable pressure low dwarfing venturi high efficiency ejector suction funnel to aspirate a liquid in a tank;
FIG. 10 is a schematic view showing the usage state of the high-efficiency injection and suction funnel of the pressure-adjustable and low-shortened Venturi connecting to the mixed slurry conveying pipeline.
In the figure: 1. pressure supply pipe assembly, 101, throttle valve, 102, pressure supply branch pipes a, 103, pressure supply branch pipes b, 104, pressure supply branch pipes c, 105, union, 106, nozzle seat, 107, nozzle, 108, plug, 109, shunt pipe, 110, adjusting screw rod, 2, dwarfing shell assembly, 201, dwarfing shell, 202, funnel connecting flange, 203, discharge port connecting flange, 204, nozzle butt joint inlet, 205, feed opening, 3, jacket layer funnel, 301, outer layer funnel, 302, inner layer funnel, 303, shunt pipe joint, 304, bottom connecting flange, 4, mixed diffusion reversing output pipeline, 401, reversing output pipe, 402, side connecting flange, 403, mixed slurry conveying pipe joint, 5, controllable blind plug, 6, mixed slurry conveying pipe.
Detailed Description
The pressure-adjustable low-dwarfing venturi high-efficiency jetting and sucking funnel consists of a pressure supply pipe assembly 1, a dwarfing shell assembly 2, a sleeve layer funnel 3, a mixed diffusion reversing output pipeline 4 and a controllable blind plug 5, wherein the pressure supply pipe assembly 1 is fixedly arranged on the left side of the dwarfing shell assembly 2, the mixed diffusion reversing output pipeline 4 is fixedly arranged on the right side of the dwarfing shell assembly 2, the sleeve layer funnel 3 is fixedly arranged above the dwarfing shell assembly 2, the controllable blind plug 5 is arranged in the sleeve layer funnel 3, and the controllable blind plug 5 is arranged at the lower end of the inner part of the sleeve layer funnel 3; the nozzle 107 on the pressure supply pipe assembly 1 is inserted into the nozzle butt joint inlet 204 of the dwarfing shell assembly 2, the jacket layer funnel 3 is connected with the funnel connecting flange 202 on the dwarfing shell assembly 2 through the bottom connecting flange 304 at the lower end, and the mixed diffusion reversing output pipe 4 is connected with the discharge port connecting flange 203 on the dwarfing shell assembly 2 through the side connecting flange 402.
The pressure supply pipe assembly 1 comprises a throttle valve 101, a pressure supply branch pipe a102, a pressure supply branch pipe b103, a pressure supply branch pipe c104, a union 105, a nozzle seat 106, a nozzle 107, a plug 108, a shunt pipe 109 and an adjusting screw rod 110, wherein the union 105 is arranged at the left end of the pressure supply branch pipe b103, the pressure supply branch pipe c104 is fixedly arranged at the right end of the pressure supply branch pipe b103, the nozzle 107 is arranged on the pressure supply branch pipe c104 through the nozzle seat 106, and the plug 108 is fixedly arranged at two ends of the pressure supply branch pipe c 104; a pressure supply branch pipe a102 is fixedly arranged above the pressure supply branch pipe b103, a throttle valve 101 is arranged on the pressure supply branch pipe a102, an adjusting screw rod 110 is arranged at the upper end of the throttle valve 101, and a shunt pipe 109 is fixedly arranged on the right side of the throttle valve 101.
The dwarfing shell assembly 2 is composed of a dwarfing shell 201, a funnel connecting flange 202, a discharge port connecting flange 203, a nozzle butt joint inlet 204 and a feed opening 205, wherein the left end of the dwarfing shell 201 is provided with the nozzle butt joint inlet 204, the right end of the dwarfing shell 201 is provided with the discharge port connecting flange 203, the upper part of the dwarfing shell 201 is provided with the feed opening 205, and the feed opening 205 is provided with the funnel connecting flange 202.
The jacketed funnel 3 is composed of an outer-layer funnel 301, an inner-layer funnel 302, a flow dividing pipe joint 303 and a bottom connecting flange 304, the inner-layer funnel 302 is arranged in the outer-layer funnel 301, the upper end and the lower end of the inner-layer funnel 302 are shorter than the outer-layer funnel 301, a cavity with a sealed upper part is formed between the inner-layer funnel and the outer-layer funnel 301, the flow dividing pipe joint 303 is arranged on one side of the outer-layer funnel 301, the flow dividing pipe joint 303 is communicated with the cavity with the sealed upper part, and the bottom connecting flange 304 is arranged at the lower end of the outer-layer funnel 301; the throttle valve 101 is communicated with the closed cavity between the inner layer funnel 302 and the outer layer funnel 301 through the shunt pipe 109 and the shunt pipe joint 303. When liquid is injected into the closed cavity through the throttle valve 101 in a partial pressure mode, the liquid flows out to a gap below the cavity, chemical materials, powder materials and weighting materials which are poured manually or mechanically and need to be mixed and added enter the sleeve layer funnel 3 and then slide down to the bottom of the inner layer funnel 302, the pressure reduction liquid flow which is injected into the closed cavity and flows out carries a high-speed jet flow negative pressure area at the front end of the inflow nozzle 107, a powder dome which is not prone to collapse is prevented from being formed at the negative pressure port, and the purpose that the liquid can continuously and efficiently flow in is achieved.
The mixed diffusion reversing output pipeline 4 is composed of a reversing output pipe 401, a side connecting flange 402 and a mixed slurry conveying pipe joint 403, one end of the reversing output pipe 401 is a small rectangular pipe, the other end of the reversing output pipe is a large square pipe, a trapezoid pipe connection is formed between the small rectangular pipe and the large square pipe, the side connecting flange 402 is manufactured at two ends of the reversing output pipe 401, and the mixed slurry conveying pipe joint 403 is installed at the right end of the reversing output pipe through the side connecting flange 402; the right end of the mixing diffusion reversing output pipeline 4 is provided with a mixed pulp conveying pipe 6 through a mixed pulp conveying pipe joint 403.
The working process of the pressure-adjustable low-dwarfing venturi high-efficiency jet suction funnel is as follows (see attached figures 1-10):
when the output pressure and flow of an electric pump or a piston pump enters a pressure supply pipe assembly 1 through a union 105, fluid with pressure is injected into a dwarfing shell assembly 2 at a high speed through a plurality of nozzles 107, wider negative pressure is generated at the bottom of a jacket layer funnel 3 and around a feed opening 205 of the dwarfing shell assembly 2, when chemical materials, heavy materials and various powder materials are poured from the upper part of the jacket layer funnel 3 manually or mechanically, the negative pressure generated by high-speed injected liquid flow carries various powder materials to be added into a mixing diffusion reversing output pipeline 4, and the mixed materials are directly pushed to various target areas such as tanks or vibrating screens to be reached along a slurry mixing conveying pipe 6 by the high-speed injected liquid flow.
When the electric pump is used, the throttle valve 101 needs to be fully opened, liquid flow discharged by the throttle valve 101 enters the closed cavity of the jacketed hopper 3 through the shunt pipe 109, and when the liquid flow naturally flows downwards out of the bottom of the inner-layer hopper 302, materials to be mixed are carried by the liquid flow to enter the discharging opening 205 with negative pressure, so that the large discharge capacity can be kept, and the high-load pressure-holding tripping of the electric pump is avoided. When the piston pump is used, the throttle valve 101 is closed as much as possible, the pressure value is adjusted to 1-4 Mpa, and the high output pressure is kept.
When liquid raw materials need to be extracted, the controllable blind plug 5 is arranged in the jacketed funnel 3, the liquid extracting pipe is connected, and the extraction and mixing work of the liquid raw materials can be completed by opening the control valve on the controllable blind plug 5; after the mixed construction of the weighting material and the powder is finished, closing the control valve of the controllable blind plug 5 to prevent the liquid in the mixed diffusion reversing output pipeline 4 from flowing back out of the jacketed hopper 3; when the liquid pumping pipe is connected with compressed air, the control valve of the controllable blind plug 5 is opened, so that the liquid in the mixed diffusion reversing output pipeline 4 can be dried and discharged completely, and freezing in winter is avoided.
When the dwarfing shell assembly 2 is connected with a mixed diffusion reversing output pipeline, the dwarfing shell assembly 2 can be installed in a direction capable of rotating 180 degrees, so that the installation layout under a special environment is facilitated, and related facilities are avoided from mutual interference.
The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.
Claims (9)
1. The utility model provides a height-adjustable dwarfing venturi high efficiency sprays suction funnel, it by supply pressure pipe assembly (1), dwarfing casing assembly (2), jacket layer funnel (3), mix diffusion switching-over output line (4) and controllable blind stifled (5) constitute, its characterized in that, the left side of dwarfing casing assembly (2) is adorned admittedly and is supplied pressure pipe assembly (1), the right side of dwarfing casing assembly (2) is adorned admittedly and is mixed diffusion switching-over output line (4), jacket layer funnel (3) are adorned admittedly to the top of dwarfing casing assembly (2), controllable blind stifled (5) are equipped with in jacket layer funnel (3).
2. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: the pressure supply pipe assembly (1) is composed of a throttle valve (101), a pressure supply branch pipe a (102), a pressure supply branch pipe b (103), a pressure supply branch pipe c (104), a union (105), a nozzle seat (106), a nozzle (107), a plug (108), a shunt pipe (109) and an adjusting screw rod (110), wherein the union (105) is arranged at the left end of the pressure supply branch pipe b (103), the pressure supply branch pipe c (104) is fixedly arranged at the right end of the pressure supply branch pipe b (103), the nozzle (107) is arranged on the pressure supply branch pipe c (104) through the nozzle seat (106), and the plug (108) is fixedly arranged at two ends of the pressure supply branch pipe c (104); a pressure supply branch pipe a (102) is fixedly arranged above the pressure supply branch pipe b (103), a throttle valve (101) is arranged on the pressure supply branch pipe a (102), an adjusting screw rod (110) is arranged at the upper end of the throttle valve (101), and a shunt pipe (109) is fixedly arranged on the right side of the throttle valve (101).
3. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: dwarfing casing assembly (2) by dwarfing casing (201), funnel flange (202), discharge gate flange (203), nozzle butt joint entry (204) and feed opening (205) constitute, the left end preparation of dwarfing casing (201) has nozzle butt joint entry (204), the right-hand member preparation of dwarfing casing (201) has discharge gate flange (203), the upper portion preparation of dwarfing casing (201) has feed opening (205), the preparation has funnel flange (202) on feed opening (205).
4. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: jacket layer funnel (3) by outer funnel (301), inlayer funnel (302), shunt tubes connect (303) and bottom surface flange (304) and constitute, inlayer funnel (302) dress is in outer funnel (301), the upper and lower end weak point in outer funnel (301) of inlayer funnel (302), be formed with the inside and outside communicating gap in upper portion inclosed cavity and lower part between the two, one side of outer funnel (301) is equipped with shunt tubes connects (303), shunt tubes connect (303) and inclosed cavity intercommunication, the lower extreme of outer funnel (301) is equipped with bottom surface flange (304).
5. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: mix diffusion switching-over output line (4) constitute by switching-over output tube (401), side flange (402) and muddy thick liquid delivery pipe connector (403), the one end of switching-over output tube (401) be little rectangular pipe, the other end is square pipe, excessively form the trapezoidal union coupling between little rectangular pipe and the square pipe, the both ends preparation of switching-over output tube (401) has side flange (402), the right-hand member is equipped with through side flange (402) and mixes thick liquid delivery pipe connector (403).
6. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: the lower end of the inner part of the sleeve layer funnel (3) is provided with a controllable blind plug (5).
7. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: the right end of the mixed diffusion reversing output pipeline (4) is provided with a mixed pulp conveying pipe (6) through a mixed pulp conveying pipe joint (403).
8. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 2, wherein: the throttle valve (101) is communicated with a closed cavity between the inner layer funnel (302) and the outer layer funnel (301) through a shunt pipe (109) and a shunt pipe joint (303).
9. The variable pressure, low-dwarfing venturi high efficiency jet aspiration funnel of claim 1, wherein: the nozzle (107) on the pressure supply pipe assembly (1) is inserted into the nozzle butt joint inlet (204) of the dwarfing shell assembly (2), the sleeve layer funnel (3) is connected with the funnel connecting flange (202) on the dwarfing shell assembly (2) through the bottom connecting flange (304) at the lower end, and the mixed diffusion reversing output pipeline (4) is connected with the discharge port connecting flange (203) on the dwarfing shell assembly (2) through the side connecting flange (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563300.6U CN214635503U (en) | 2021-03-19 | 2021-03-19 | Pressure-adjustable low venturi high-efficiency jet suction funnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120563300.6U CN214635503U (en) | 2021-03-19 | 2021-03-19 | Pressure-adjustable low venturi high-efficiency jet suction funnel |
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| CN214635503U true CN214635503U (en) | 2021-11-09 |
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| CN202120563300.6U Active CN214635503U (en) | 2021-03-19 | 2021-03-19 | Pressure-adjustable low venturi high-efficiency jet suction funnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844089A (en) * | 2021-03-19 | 2021-05-28 | 湖北安逸智控环保科技有限公司 | Pressure-adjustable low venturi high-efficiency jet suction funnel |
-
2021
- 2021-03-19 CN CN202120563300.6U patent/CN214635503U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844089A (en) * | 2021-03-19 | 2021-05-28 | 湖北安逸智控环保科技有限公司 | Pressure-adjustable low venturi high-efficiency jet suction funnel |
| CN112844089B (en) * | 2021-03-19 | 2024-05-24 | 湖北安逸智控环保科技有限公司 | Adjustable low-low venturi high-efficiency jet suction funnel |
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