CN115445528A - Siphon type dosing nozzle device - Google Patents
Siphon type dosing nozzle device Download PDFInfo
- Publication number
- CN115445528A CN115445528A CN202211056985.0A CN202211056985A CN115445528A CN 115445528 A CN115445528 A CN 115445528A CN 202211056985 A CN202211056985 A CN 202211056985A CN 115445528 A CN115445528 A CN 115445528A
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- siphon
- main part
- inlet
- nozzle
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- 239000007788 liquid Substances 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003814 drug Substances 0.000 claims abstract description 45
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical class C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 27
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/002—Nozzle-type elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention provides a siphon type dosing nozzle device, belongs to the technical field of reaction kettle proportioning processes, and solves the problem that a dosing device is high in cost in the existing reaction kettle dosing process. This hydrocone type adds medicine nozzle device, including nozzle main part and siphon seat, the one end threaded connection of nozzle main part has the liquid inlet connector, first through-hole has been seted up to liquid inlet connector inside, be provided with the main inlet with first through-hole intercommunication on the liquid inlet connector, the other end of nozzle main part is provided with the liquid outlet, siphon seat and nozzle main part fixed connection, be provided with the siphon inlet on the siphon seat, the inside second through-hole of having seted up of siphon seat, second through-hole and siphon inlet intercommunication, the play water end of second through-hole is provided with one-way feed liquor subassembly, the cavity has been seted up to the inside of nozzle main part, be provided with the flow control mold insert in the cavity, the third through-hole has been seted up in the flow control mold insert. The invention has the advantage of effectively reducing the cost of the medicine adding device.
Description
Technical Field
The invention belongs to the technical field of a reaction kettle proportioning process, relates to a nozzle device, and particularly relates to a siphon type dosing nozzle device.
Background
In the biological, chemical and pharmaceutical industries of China, in the process of processing semi-finished stock solutions, the stock solutions with different properties are added with water into a reaction kettle for refining or processing. Although manual dosing has been eliminated and replaced with dosing pump dosing, there are still some problems with the dosing pump dosing process, as shown in fig. 1, such as: every liquid needs a measuring pump, and every measuring pump need join in marriage corresponding valve pipeline and join in marriage, electrical control system, but normal work, especially reation kettle work area environment often wets, some liquid is flammable even, take corrosivity, so it is higher to pump body protection level requirement, electrical accessories, pipe fittings need do special explosion-proof, the anticorrosion is handled, can normal use, the input cost is high, need special messenger's operation and maintenance, because the environment is abominable, in the use, meet the damage of equipment individuality part, change the maintenance and need shut down the processing, influence production efficiency, some special import accessories are unable quick replacement more, bring the puzzlement for enterprise's production.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a siphon type dosing nozzle device, which aims to solve the technical problems that: how to realize effectively reducing the cost of charge device.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a hydrocone type adds medicine nozzle device, including nozzle main part and siphon seat, the one end threaded connection of nozzle main part has the liquid inlet connector, the inside first through-hole of having seted up of liquid inlet connector, be provided with the main inlet with first through-hole intercommunication on the liquid inlet connector, the other end of nozzle main part is provided with the liquid outlet, siphon seat and nozzle main part fixed connection, be provided with the siphon inlet on the siphon seat, the inside second through-hole of having seted up of siphon seat, the second through-hole communicates with the siphon inlet, the play water end of second through-hole is provided with one-way feed liquor subassembly, the cavity has been seted up to the inside of nozzle main part, be provided with the flow control mold insert in the cavity, the third through-hole has been seted up in the flow control mold insert, the internal diameter of third through-hole water inlet end is greater than the internal diameter of play water end, the both ends of third through-hole communicate with first through-hole and cavity respectively, the internal diameter of first through-hole is greater than the internal diameter of third through-hole, the cavity passes through fourth through hole and liquid outlet intercommunication, the internal diameter of fourth through-hole inlet end is less than the internal diameter of water end, the cavity passes through fifth through-hole and is connected with one-way feed liquor subassembly.
The working principle of the invention is as follows: during the use, main inlet passes through first external pipeline and water piping connection, the liquid outlet passes through the second external pipeline and is connected with the reation kettle device, the siphon inlet passes through third external pipeline and stores up the explosive barrel intercommunication, rivers pass through the nozzle main part and spout from the liquid outlet, rivers pass through first through-hole entering third through-hole, then get into the fourth through-hole through the cavity, because of inlet pressure is greater than liquid pressure, under the effect of spraying hydraulic pressure, the medicine pipeline forms the negative pressure, produce the siphon, make the liquid medicine get into the siphon inlet through the third connecting tube, then get into one-way feed liquor subassembly through the second through-hole, rethread fifth through-hole gets into the cavity and gets into the fourth through-hole along with rivers, then rivers and liquid medicine pass through the liquid outlet and get into second external pipeline, then get into the reation kettle device, the setting of one-way feed liquor subassembly can effectually prevent rivers and get into the explosive barrel through siphon seat refluence, so can low-cost add medicine, also can work under different environments, reduce the frequency of maintenance, the life of production and equipment has been improved.
One-way feed liquor subassembly includes the spheroid, and spread groove has been seted up down to nozzle main part upper end, and spread groove is seted up to siphon seat lower extreme, goes up the spread groove and is provided with the connecting cylinder down between the spread groove, connecting cylinder and fifth through-hole intercommunication, the inside spring that is provided with of connecting cylinder, and the one end and the connecting cylinder bottom of spring are contradicted, and the other end and the spheroid of spring are contradicted, and the spheroid is contradicted with the play water end of second through-hole.
Structure more than adopting, during the siphon, the liquid medicine passes through the play water end of second through-hole, make the spheroid receive pressure and keep away from the play water end removal of second through-hole, make the liquid medicine pass through the connecting cylinder and get into the fifth through-hole, then during entering reation kettle device along with the rivers, when not taking place the siphon, under the effect of spring, make the spheroid be close to the play water end removal of second through-hole, the spheroid is contradicted with the play water end of second through-hole, thereby make rivers can't get into the second through-hole, so can effectively avoid storing up liquid medicine in the explosive barrel and diluted, the reliability and the practicality of equipment have been improved.
A second annular groove is formed in the upper connecting groove, a second sealing ring is arranged in the second annular groove, the second sealing ring is located on the periphery of the water outlet end of the second through hole and abuts against the ball body, and the outer diameter of the second sealing ring is larger than the inner diameter of the connecting cylinder.
When the ball body moves close to the water outlet end of the second through hole, the ball body is abutted against the second sealing ring, so that the sealing performance of the water outlet end of the second through hole is improved.
A first annular groove is formed in the lower connecting groove, a first sealing ring is arranged in the first annular groove and is abutted against the siphon seat, and the connecting cylinder penetrates through the first sealing ring and is abutted against the first sealing ring.
By adopting the structure, the arrangement of the first sealing ring effectively avoids the liquid medicine and the water flow from flowing through the gap between the connecting cylinder and the connecting groove, and also avoids the liquid from exposing to cause erosion to the equipment.
The siphon seat is fixedly connected with the nozzle main body through a lock nut.
By adopting the structure, the siphon seat and the nozzle main body are convenient to connect and detach due to the arrangement of the locking nut.
And the liquid inlet joint, the liquid outlet and the siphon seat are all provided with external threads.
By adopting the structure, the arrangement of the external threads facilitates the connection and the disassembly of the first external pipeline, the second external pipeline and the third external pipeline.
And a siphon flow regulating port is arranged on the siphon liquid inlet.
By adopting the structure, the siphon flow regulating port can effectively regulate the flow of the liquid medicine and control the cost of the liquid medicine.
Compared with the prior art, the siphon type dosing nozzle device has the following advantages:
1. when the siphon type medicine storage tank is used, the main liquid inlet is connected with the water inlet pipe through the first external pipeline, the liquid outlet is connected with the reaction kettle device through the second external pipeline, the siphon type liquid inlet is communicated with the medicine storage tank through the third external pipeline, water flow is sprayed out of the liquid outlet through the nozzle main body, the water flow enters the third through hole through the first through hole and then enters the fourth through hole through the cavity, the medicine adding pipeline forms negative pressure under the action of the spraying hydraulic pressure due to the fact that the liquid inlet pressure is larger than the liquid outlet pressure, siphon is generated, medicine liquid enters the siphon type liquid inlet through the third connecting pipeline, then enters the one-way liquid inlet assembly through the second through hole, enters the cavity through the fifth through hole and enters the fourth through hole along with the water flow, then the water flow and the medicine liquid enter the second external pipeline through the liquid outlet and then enter the reaction kettle device, the one-way liquid inlet assembly can effectively prevent the water flow from flowing back into the medicine storage tank through the siphon base, medicine adding can be carried out at low cost, can also work under different environments, the frequency of maintenance is reduced, and the service life of production and equipment is prolonged;
2. during siphoning, the liquid medicine passes through the water outlet end of the second through hole, so that the ball body is pressed to move away from the water outlet end of the second through hole, the liquid medicine enters the fifth through hole through the connecting cylinder, then enters the reaction kettle device along with water flow, and when siphoning does not occur, the ball body is moved close to the water outlet end of the second through hole under the action of the spring and is abutted against the water outlet end of the second through hole, so that the water flow cannot enter the second through hole, the liquid medicine in the medicine storage barrel can be effectively prevented from being diluted, and the reliability and the practicability of equipment are improved;
3. the arrangement of the first sealing ring effectively avoids the circulation of liquid medicine and water flow through the gap between the connecting cylinder and the connecting groove, and also avoids the corrosion to equipment caused by the exposure of liquid.
Drawings
Fig. 1 is a schematic structural diagram of a dosing device of a conventional metering pump.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a schematic representation of the use of the present invention.
In the figure, 1, a liquid inlet joint; 2. a nozzle body; 3. a siphon seat; 4. a lock nut; 5. the flow control insert; 7. a first seal ring; 8. a spring; 9. a sphere; 10. a second seal ring; 11. a siphon flow regulating port; 12. a liquid outlet; 13. a liquid inlet is siphoned; 14. a main liquid inlet.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 2-5, the siphon chemical feeding nozzle device includes a nozzle main body 2 and a siphon seat 3, one end of the nozzle main body 2 is connected with a liquid inlet connector 1 through a screw thread, a first through hole is formed inside the liquid inlet connector 1, a main liquid inlet 14 communicated with the first through hole is formed in the liquid inlet connector 1, a liquid outlet 12 is formed at the other end of the nozzle main body 2, the siphon seat 3 is fixedly connected with the nozzle main body 2, a siphon liquid inlet 13 is formed in the siphon seat 3, a second through hole is formed inside the siphon seat 3 and communicated with the siphon liquid inlet 13, a one-way liquid inlet assembly is arranged at a water outlet end of the second through hole, a cavity is formed inside the nozzle main body 2, a flow control insert 5 is arranged in the cavity, a third through hole is formed in the flow control insert 5, an inner diameter of a water inlet end of the third through hole is larger than an inner diameter of the water outlet end, two ends of the third through hole are respectively communicated with the first through hole and the cavity, an inner diameter of the first through hole is larger than an inner diameter of the third through hole, the cavity is communicated with the liquid outlet 12 through a fourth through hole, and the cavity is connected with the one-way liquid inlet assembly.
When the siphon type medicine storage tank is used, the main liquid inlet 14 is connected with a water inlet pipe through a first external pipeline, the liquid outlet 12 is connected with a reaction kettle device through a second external pipeline, the siphon type liquid inlet 13 is communicated with a medicine storage tank through a third external pipeline, water flow is sprayed out from the liquid outlet 12 through the nozzle main body 2, the water flow enters the third through hole through the first through hole and then enters the fourth through hole through the cavity, the liquid feeding pipeline forms negative pressure under the action of the spraying hydraulic pressure due to the fact that the liquid inlet pressure is larger than the liquid outlet pressure, siphon is generated, liquid medicine enters the siphon type liquid inlet 13 through the third connecting pipeline, then enters the one-way liquid inlet assembly through the second through hole, the liquid medicine enters the fourth through hole through the fifth through hole along with the water flow, then the water flow and the liquid medicine enter the second external pipeline through the liquid outlet 12 and then enter the reaction kettle device, backflow of the one-way liquid inlet assembly can be effectively prevented, the liquid medicine can be fed through the siphon base 3 in a backflow mode, the low-cost mode can also work under different environments, the frequency of maintenance is reduced, and the service life of production and equipment is prolonged.
As shown in fig. 3, the one-way liquid inlet assembly comprises a ball 9, a lower connecting groove is formed in the upper end of the nozzle body 2, an upper connecting groove is formed in the lower end of the siphon seat 3, a connecting cylinder is arranged between the upper connecting groove and the lower connecting groove, the connecting cylinder is communicated with the fifth through hole, a spring 8 is arranged inside the connecting cylinder, one end of the spring 8 is abutted to the bottom of the connecting cylinder, the other end of the spring 8 is abutted to the ball 9, and the ball 9 is abutted to the water outlet end of the second through hole.
During siphoning, the liquid medicine passes through the play water end of second through-hole, make spheroid 9 receive the play water end that pressure kept away from the second through-hole and remove, make the liquid medicine pass through the connecting cylinder and get into the fifth through-hole, then enter into the reation kettle device along with rivers, when not taking place siphoning, under spring 8's effect, make spheroid 9 be close to the play water end removal of second through-hole, spheroid 9 contradicts with the play water end of second through-hole, thereby make rivers can't get into the second through-hole, so can effectively avoid storing up liquid medicine in the explosive barrel and diluted, the reliability and the practicality of equipment have been improved.
As shown in fig. 3, a second annular groove is formed in the upper connecting groove, a second sealing ring 10 is disposed in the second annular groove, the second sealing ring 10 is located on the periphery of the water outlet end of the second through hole and abuts against the ball 9, and the outer diameter of the second sealing ring 10 is larger than the inner diameter of the connecting cylinder. When the ball 9 moves close to the water outlet end of the second through hole, the ball 9 abuts against the second sealing ring 10, so that the sealing performance of the water outlet end of the second through hole is improved. A first annular groove is formed in the lower connecting groove, a first sealing ring 7 is arranged in the first annular groove, the first sealing ring 7 is abutted to the siphon seat 3, and the connecting cylinder penetrates through the first sealing ring 7 and is abutted to the first sealing ring 7. The arrangement of the first sealing ring 7 effectively avoids the circulation of liquid medicine and water flow through the gap between the connecting cylinder and the connecting groove, and also avoids the corrosion to equipment caused by the exposure of liquid.
In this embodiment, the siphon seat 3 is fixedly connected with the nozzle body 2 by a lock nut 4; the provision of the lock nut 4 facilitates the attachment and detachment of the siphon seat 3 to the nozzle body 2. The liquid inlet joint 1, the liquid outlet 12 and the siphon seat 3 are all provided with external threads; the arrangement of the external threads facilitates the connection and the disassembly of the first external pipeline, the second external pipeline and the third external pipeline. A siphon flow regulating port 11 is arranged on the siphon liquid inlet 13; the siphon flow regulating port 11 can effectively regulate the flow of the liquid medicine and control the cost of the liquid medicine.
When the siphon type medicine injection device is used, the main liquid inlet 14 is connected with a water inlet pipe through a first external pipeline, the liquid outlet 12 is connected with a reaction kettle device through a second external pipeline, the siphon liquid inlet 13 is communicated with a medicine storage barrel through a third external pipeline, water flow is sprayed out from the liquid outlet 12 through the nozzle main body 2, enters a third through hole through the first through hole and then enters a fourth through hole through a cavity, the medicine feeding pipeline forms negative pressure under the action of spraying hydraulic pressure due to the fact that the liquid inlet pressure is larger than the liquid outlet pressure, siphon is generated, medicine liquid enters the siphon liquid inlet 13 through the third connecting pipeline, then the medicine liquid passes through the water outlet end of the second through hole, the ball 9 is subjected to pressure and moves away from the water outlet end of the second through hole, the medicine liquid enters the fifth through connecting cylinder, then enters the fourth through hole along with water flow through the cavity, the water flow and the medicine liquid enter the second external pipeline through the liquid outlet 12 and then enter the reaction kettle device for extraction or process treatment.
In conclusion, the cost of the dosing device is effectively reduced through the arrangement of the siphon seat 3.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a hydrocone type adds medicine nozzle device, including nozzle main part (2) and siphon seat (3), a serial communication port, the one end threaded connection of nozzle main part (2) has inlet fitting (1), first through-hole has been seted up to inlet fitting (1) inside, be provided with main inlet (14) with first through-hole intercommunication on inlet fitting (1), the other end of nozzle main part (2) is provided with liquid outlet (12), siphon seat (3) and nozzle main part (2) fixed connection, be provided with inlet siphon (13) on siphon seat (3), the second through-hole has been seted up to siphon seat (3) inside, the second through-hole communicates with siphon inlet (13), the delivery end of second through-hole is provided with one-way feed liquor subassembly, the cavity has been seted up to the inside of nozzle main part (2), be provided with flow control mold insert (5) in the cavity, the third through-hole has been seted up in flow control mold insert (5), the internal diameter of third through-hole delivery end is greater than the internal diameter of delivery end, the both ends of third through-hole communicate with first through-hole and cavity respectively, the internal diameter of first through-hole is greater than the internal diameter of third through-hole, the cavity passes through hole and communicates with fourth through-hole (12), the internal diameter of delivery end, the internal diameter of fourth through-hole is less than the internal diameter of four-way delivery end and is connected with the delivery end, the five-way delivery end subassembly, the internal diameter of four-way feed liquor outlet assembly.
2. The siphon type chemical dosing nozzle device according to claim 1, wherein the one-way liquid inlet assembly comprises a ball body (9), a lower connecting groove is formed in the upper end of the nozzle body (2), an upper connecting groove is formed in the lower end of the siphon seat (3), a connecting cylinder is arranged between the upper connecting groove and the lower connecting groove and communicated with the fifth through hole, a spring (8) is arranged inside the connecting cylinder, one end of the spring (8) is abutted against the bottom of the connecting cylinder, the other end of the spring (8) is abutted against the ball body (9), and the ball body (9) is abutted against the water outlet end of the second through hole.
3. The siphon type dosing nozzle device according to claim 2, wherein a second annular groove is formed in the upper connecting groove, a second sealing ring (10) is arranged in the second annular groove, the second sealing ring (10) is located on the periphery of the water outlet end of the second through hole and abuts against the ball body (9), and the outer diameter of the second sealing ring (10) is larger than the inner diameter of the connecting cylinder.
4. The siphon type dosing nozzle device according to claim 3, characterized in that a first annular groove is formed in the lower connecting groove, a first sealing ring (7) is arranged in the first annular groove, the first sealing ring (7) abuts against the siphon seat (3), and the connecting cylinder penetrates through the first sealing ring (7) and abuts against the first sealing ring (7).
5. The siphon-type dosing nozzle device according to claim 1, characterized in that the siphon seat (3) is fixedly connected to the nozzle body (2) by means of a lock nut (4).
6. The siphonic chemical-feeding nozzle device according to claim 1, wherein the liquid inlet connector (1), the liquid outlet (12) and the siphon seat (3) are provided with external threads.
7. The siphon type dosing nozzle device according to claim 1, characterized in that the siphon liquid inlet (13) is provided with a siphon flow regulating port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056985.0A CN115445528A (en) | 2022-08-31 | 2022-08-31 | Siphon type dosing nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056985.0A CN115445528A (en) | 2022-08-31 | 2022-08-31 | Siphon type dosing nozzle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115445528A true CN115445528A (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211056985.0A Pending CN115445528A (en) | 2022-08-31 | 2022-08-31 | Siphon type dosing nozzle device |
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| Country | Link |
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| CN (1) | CN115445528A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647833Y (en) * | 2003-05-20 | 2004-10-13 | 上海立方同和环境科技有限公司 | Drug adding device with water jet variable frequency coagulating |
| CN201531467U (en) * | 2009-11-11 | 2010-07-21 | 宁波蓝达实业有限公司 | Self-absorbing structure of cleaning agent of high pressure cleaning machine |
-
2022
- 2022-08-31 CN CN202211056985.0A patent/CN115445528A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647833Y (en) * | 2003-05-20 | 2004-10-13 | 上海立方同和环境科技有限公司 | Drug adding device with water jet variable frequency coagulating |
| CN201531467U (en) * | 2009-11-11 | 2010-07-21 | 宁波蓝达实业有限公司 | Self-absorbing structure of cleaning agent of high pressure cleaning machine |
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