CN112170363A - Negative pressure type solid-liquid dual-purpose chemical adding device and using method - Google Patents
Negative pressure type solid-liquid dual-purpose chemical adding device and using method Download PDFInfo
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- CN112170363A CN112170363A CN202011199330.XA CN202011199330A CN112170363A CN 112170363 A CN112170363 A CN 112170363A CN 202011199330 A CN202011199330 A CN 202011199330A CN 112170363 A CN112170363 A CN 112170363A
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- negative pressure
- pressure generator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
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Abstract
A negative pressure type solid-liquid dual-purpose medicine adding device and a using method thereof are provided, wherein the device comprises a medicine adding funnel, a grid and a spray pipe valve; a negative pressure generator; a shower pipe; an isolation butterfly valve; a liquid medicine inlet ball valve, a bracket and the like; when in use, the dosing device is connected with the bypass of the outlet pipe of the chemical cleaning system; providing a pressure head by a chemical cleaning system cleaning pump; when the medicine adding device is used, the pressurized liquid passes through the negative pressure generator to form negative pressure in the negative pressure generator; after the solid medicine adds the medicine funnel, the shower provides the dissolution medium for it, and the solid medicine dissolves fast in adding the medicine funnel, opens and keeps apart manual butterfly valve, and solution gets into negative pressure generator, by negative pressure generator export entering system, and liquid medicine gets into the generator through negative pressure generator top side ball valve, goes into the system through the negative pressure generator export. The dosing device is reliable and easy to realize, and solves the problems that the solid medicine is low in dissolution speed in the chemical cleaning dosing process, and the pipeline pressure hose bursts when liquid medicine is fed, so that leakage is caused.
Description
Technical Field
The invention belongs to the field of chemical cleaning, and particularly relates to a negative-pressure type solid-liquid dual-purpose chemical feeding device and a using method thereof.
Background
In the chemical cleaning process, systematic dosing is an important link, in the past, systematic dosing of liquid medicines is usually realized by erecting a small water pump between a liquid medicine containing container and a temporary water tank through a plastic reinforced pipe, medicines cannot be directly added into a pipeline, and because the system runs, the pipeline of the system is under pressure, a pressure head higher than the pressure in the pipeline of the system is required to be arranged at the outlet of the water pump, otherwise, the medicines are not easily added into the system, and due to the high pressure, the dosing pipe is easy to burst, the joint of the joint is easy to leak, so that the probability of personal injury is increased; if the medicine needs to be added into the water tank, the carrying process is complicated, and the container is easy to damage in the carrying process, so that medicine leakage occurs;
the solid medicine adding is usually carried to the position near the water tank manually, when a system has medicine adding conditions, the solid medicine adding is carried to the top of the water tank manually or mechanically, then the medicine is added into the water tank manually, the temperature of the water tank is generally higher (about 80 ℃) during chemical cleaning, the water vapor on the top of the water tank is dazzled, the visual field is unclear, the distance from the ground is higher, the medicine adding environment is poor, and the manual workload is large. Danger such as personnel scald, fall in high altitude easily takes place, and artifical work load increases with the increase of dosing by times. Secondly, the water tank generally does not have a stirring device, and solid medicines are easy to deposit in the water tank because the solubility of the solid medicines is reduced along with the increase of the concentration of the solution in the water tank. The medicine adding speed is reduced, and the medicine adding time is prolonged.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a negative-pressure type solid-liquid dual-purpose dosing device and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a negative pressure type solid-liquid dual-purpose chemical adding device comprises a negative pressure generator 1, wherein the left side of the negative pressure generator is connected with a connecting short pipe 2, the right side of the negative pressure generator is connected with a negative pressure generator outlet valve 11, and the right side of the connecting short pipe 2 is connected with a negative pressure generator inlet valve 10; the upper part of the dosing short pipe of the negative pressure generator 1 is connected with an isolation butterfly valve 5; the upper part of the isolation butterfly valve 5 is connected with the dosing funnel 4; the lower part of the isolation butterfly valve 5 is connected with a liquid medicine inlet ball valve 9; the upper part of the dosing funnel 4 is provided with a dosing grid 7; the dosing funnel 4 is communicated with the junction pipe 2, a spray pipe inlet ball valve 3 is arranged on a communicating pipe between the dosing funnel 4 and the junction pipe 2, and the upper part of the spray pipe inlet ball valve 3 is connected with a spray pipe 8 in the dosing funnel 4; the whole medicine adding device is supported by the supporting legs 6, and the upper parts of the supporting legs are welded at the lower part of the medicine adding funnel 4.
The negative pressure generator 1 consists of a contraction section and an expansion section, the caliber of the contraction section is DN50-300, the shell is made of stainless tubes or carbon steel according to different added medicines, the inner sleeve is integrally made of nylon material, the caliber of the expansion section is 60-310mm, the expansion tube section of the negative pressure generator is made of carbon steel, and an inner lining anti-corrosion layer is arranged in the tube; when HCl is added, a negative pressure generator made of stainless steel is strictly forbidden.
The caliber of the short connecting pipe 2 is DN50-300, the specific size is determined according to the negative pressure generator, stainless pipes or carbon steel are selected according to different materials of added medicines, and stainless steel is forbidden when HCl is added.
The spraying inlet ball valve 3 is a three-piece welded ball valve, the caliber of the ball valve is DN40-50, the material is stainless steel or carbon steel, and the stainless steel is forbidden when HCl is added.
The diameter of the round opening of the medicine adding funnel 4 is DN800-900mm,is made of a steel plate with the thickness of 1-5mm, the bottom of the plate is connected with a large joint and a small joint, the large opening is 800-900mm, and the diameter of the small opening is
The small opening is connected with the short connecting pipe 2 and the flange, the material of the dosing funnel is carbon steel, the dosing funnel is formed by welding after the metal plate is finished, and the outer surface of the dosing funnel is coated with an anticorrosive material after the dosing funnel is integrally finished; the inner surface is not subjected to anti-corrosion treatment; the supporting legs 6 are made of channel steel, and the inside and the outside of the supporting legs are coated with anticorrosive materials the same as those of the dosing hopper.
The isolation butterfly valve 5 is a DN100-DN150 wafer type manual butterfly valve and is made of carbon steel.
The medicine adding grid 7 adopts
The steel bar is made and welded, and the material is common carbon steel; the spray pipe 8 adopts
The steel pipe is made of common carbon steel; the liquid medicine inlet valve 9 is a screw thread ball valve and is made of stainless steel or carbon steel.
The drug adding system and the cleaning system are isolated by using a negative pressure generator inlet valve 10 and a negative pressure generator outlet valve 11, and the negative pressure generator inlet valve 10 and the negative pressure generator outlet valve 11 are stop valves or gate valves.
The negative pressure generator 1 is connected with the short connecting pipe 2 through flanges, polytetrafluoroethylene gaskets are arranged between the flanges, and the thickness of the gaskets is 3-5 mm; the isolation butterfly valve 5 is connected with the negative pressure generator 1 and the dosing funnel 4 through flanges, the isolation butterfly valve 5 and the upper and lower flanges are sealed through polytetrafluoroethylene gaskets, and the thickness of the gaskets is 3-5 mm.
The use method of the negative pressure type solid-liquid dual-purpose dosing device comprises the steps of firstly confirming whether pipeline connection is correct, whether the inlet and outlet directions are the same as the fluid direction of a chemical cleaning system or not and whether the pipeline connection is connected in parallel with the main pipeline of the chemical cleaning system or not, when the negative pressure type solid-liquid dual-purpose dosing device is used, firstly confirming that all valves on the dosing device are closed, then opening an outlet valve 11 of a negative pressure generator, then slowly opening an inlet valve 10 of the negative pressure generator, slowly closing a liquid return valve on the pipeline of the chemical cleaning system to generate pressure difference between the front and the back of the negative pressure generator 1 to enable negative pressure to be generated inside the negative pressure generator 1, then slowly opening an isolation butterfly valve 5, opening an inlet ball valve 3 of a spray pipe, adjusting the opening degree of the inlet valve 10 of the negative pressure generator to enable spray liquid to have no accumulation in a dosing funnel 4, starting to dose into the dosing, the mixture enters the negative pressure generator 1 through the isolation butterfly valve 5 and then enters the chemical cleaning system through the pipeline at the expansion section of the negative pressure generator, when the liquid is added with the chemicals, the liquid medicine inlet ball valve 9 is connected with the liquid container through the reinforced hose, when the chemicals are added, the liquid medicine inlet ball valve 9 is opened, and the opening of the liquid medicine inlet ball valve 9 is adjusted to control the medicine inlet speed; when the dosing is stopped, the isolation butterfly valve 5 and the liquid dosing ball valve 9 are closed, the liquid return valve on the main path of the chemical cleaning system is opened, the inlet valve 10 and the outlet valve 11 of the negative pressure generator are closed, and the dosing process using the dosing device is stopped.
Because the negative pressure is used for feeding, the problems of hose cracking and joint pressure-bearing leakage in the traditional feeding process are avoided; meanwhile, the problem of liquid medicine transportation is avoided.
Because the connection mode of the system bypass is adopted, the cleaning pump in the chemical cleaning system is used as power, a micro water pump in the traditional liquid dosing process is omitted, the failure rate is reduced, and the system is simpler.
Because the overall height of the dosing device is about 1 meter, when solid is dosed, drug carrying is convenient, manpower is greatly reduced, and operation is simpler and more convenient.
In addition, the spraying device is added to accelerate the dissolution of the solid medicine, so that the medicine adding efficiency is improved, and the problem of medicine deposition when the medicine is added into the water tank is solved.
Compared with the prior art, the invention has the following advantages:
1) the device is simple to manufacture, the connecting system is simple, the installation is convenient, and the realization is easy;
2) the chemical cleaning system is used for hydraulic drive, and no external power is needed;
3) no moving parts are needed, the reliability is high, and the daily maintenance is less;
4) the volume is small, the weight is light, the installation is flexible and convenient, and the space is saved;
5) the medicine suction amount is always kept constant under the normal system flow;
6) the negative pressure medicine adding is safer and more convenient.
Drawings
FIG. 1 is a front view of the drug delivery device of the present invention.
FIG. 2 is a left side view of the drug administration device of the present invention.
FIG. 3 is a top view of the drug delivery device of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in figures 1, 2 and 3, the negative pressure type solid-liquid dual-purpose medicine adding device comprises a negative pressure generator 1, wherein the left side of the negative pressure generator is connected with a connecting short pipe 2, the right side of the negative pressure generator is connected with an outlet valve 11 of the negative pressure generator, and the right side of the connecting short pipe 2 is connected with an inlet valve 10 of the negative pressure generator; the upper part of the dosing short pipe of the negative pressure generator 1 is connected with an isolation butterfly valve 5; the upper part of the isolation butterfly valve 5 is connected with the dosing funnel 4; the lower part of the isolation butterfly valve 5 is connected with a liquid medicine inlet ball valve 9; the upper part of the dosing funnel 4 is provided with a dosing grid 7; the dosing funnel 4 is communicated with the junction pipe 2, a spray pipe inlet ball valve 3 is arranged on a communicating pipe between the dosing funnel 4 and the junction pipe 2, and the upper part of the spray pipe inlet ball valve 3 is connected with a spray pipe 8 in the dosing funnel 4; the whole medicine adding device is supported by the supporting legs 6, and the upper parts of the supporting legs are welded at the lower part of the medicine adding funnel 4. The negative pressure generator 1 is composed of a contraction section and an expansion section, the caliber of the contraction section is DN150, the shell can be made of carbon steel according to different added medicines, the inner sleeve is integrally made of nylon material, the caliber of the expansion section is 150mm, the expansion pipe section of the negative pressure generator is made of carbon steel, and a lining is made in the pipe to prevent corrosion. A short connecting pipe 2 with a caliber DN 150. The spray inlet ball valve 3 is a three-piece welded ball valve with a caliber DN50 and is made of stainless steel. The medicine adding funnel 4 and the round mouth caliber DN800mm are made of a steel plate metal plate with the thickness of 3mm, the bottom is connected with a reducer, the large mouth is 800mm, and the small mouth has the diameter
The small opening is connected with a short connecting pipe and a flange, the material of the dosing funnel is carbon steel, the dosing funnel is welded after the metal plate is finished, and the outer surface of the dosing funnel is painted with an anticorrosive material after the dosing funnel is integrally finished; the inner surface is not treated with corrosion protection. The isolation butterfly valve 5 is a DN150 wafer type manual butterfly valve and is made of carbon steel. The supporting leg 6 is made of #8 channel steel, and the inside and the outside of the supporting leg are coated with the same anticorrosive material as the dosing funnel. The chemical adding grid 7 adopts
And (5) manufacturing the steel bars, and finishing welding, wherein the materials are all common carbon steel. The spray pipe 8 adopts
The steel pipe is made of common carbon steel. The liquid medicine inlet valve 8 is a screw thread ball valve made of carbon steel. The drug adding system and the cleaning system are isolated by using a negative pressure generator inlet valve 10 and a negative pressure generator outlet valve 11, and the negative pressure generator inlet valve 10 and the negative pressure generator outlet valve 11 are stop valves. The negative pressure generator 1 is connected with the short connecting pipe 2 through flanges, polytetrafluoroethylene gaskets are arranged between the flanges, and the thickness of the gaskets is 3 mm; keep apart butterfly valve 5 and negative pressure generator 1 and add between the medicine funnel 4 and adopt flange joint, keep apart the butterfly valve 5 and all adopt the polytetrafluoroethylene gasket to seal between two upper and lower flanges, gasket thickness 3 mm.
When the chemical adding device is used, firstly, whether pipeline connection is correct or not is confirmed, whether the inlet and outlet directions are the same as the fluid direction of a chemical cleaning system or not is confirmed, whether the chemical adding device is connected in parallel on a main pipeline of the chemical cleaning system or not, when the chemical adding device is used, firstly, all valves on the chemical adding device are confirmed to be closed, then, an outlet valve 11 of a negative pressure generator is opened, then, an inlet valve 10 of the negative pressure generator is opened slowly, a liquid return valve on the pipeline of the chemical cleaning system is closed slowly, pressure difference is generated in the front and at the back of the negative pressure generator 1, negative pressure is generated in the negative pressure generator 1, then, an isolation butterfly valve 5 is opened slowly, an inlet ball valve 3 of a spray pipe is opened, the opening degree of the inlet valve 10 of the negative pressure generator is adjusted, so that no spraying liquid is stored in a chemical adding funnel 4, the mixture enters the negative pressure generator 1 through the isolation butterfly valve 5 and then enters the chemical cleaning system through the pipeline at the expansion section of the negative pressure generator, when the liquid is added with the chemicals, the liquid medicine inlet ball valve 9 is connected with the liquid container through the reinforced hose, when the chemicals are added, the liquid medicine inlet ball valve 9 is opened, and the opening of the liquid medicine inlet ball valve 9 is adjusted to control the medicine inlet speed; when the dosing is stopped, the isolation butterfly valve 5 and the liquid dosing ball valve 9 are closed, the liquid return valve on the main path of the chemical cleaning system is opened, the inlet valve 10 and the outlet valve 11 of the negative pressure generator are closed, and the dosing process using the dosing device is stopped.
Claims (10)
1. The utility model provides a dual-purpose charge device of negative pressure formula solid-liquid which characterized in that: the device comprises a negative pressure generator (1), wherein the left side of the negative pressure generator is connected with a short connecting pipe (2), the right side of the negative pressure generator is connected with an outlet valve (11) of the negative pressure generator, and the right side of the short connecting pipe (2) is connected with an inlet valve (10) of the negative pressure generator; the upper part of a dosing short pipe of the negative pressure generator (1) is connected with an isolation butterfly valve (5); the upper part of the isolation butterfly valve (5) is connected with the dosing funnel (4); the lower part of the isolation butterfly valve (5) is connected with a liquid medicine inlet ball valve (9); the upper part of the dosing funnel (4) is provided with a dosing grid (7); the dosing funnel (4) is communicated with the short connecting pipe (2), a spray pipe inlet ball valve (3) is arranged on a communicating pipe between the dosing funnel (4) and the short connecting pipe (2), and the upper part of the spray pipe inlet ball valve (3) is connected with a spray pipe (8) in the dosing funnel (4); the whole dosing device is supported by supporting legs (6), and the upper parts of the supporting legs are welded at the lower parts of the dosing hoppers (4).
2. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the negative pressure generator (1) consists of a contraction section and an expansion section, the caliber of the contraction section is DN50-300, the shell is made of stainless tubes or carbon steel according to different added medicines, the inner sleeve is integrally made of nylon materials, the caliber of the expansion section is 60-310mm, the expansion tube section of the negative pressure generator is made of carbon steel, and an inner lining anti-corrosion layer is arranged in the tube; when HCl is added, a negative pressure generator made of stainless steel is strictly forbidden.
3. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the caliber of the short connecting pipe (2) is DN50-300, the specific size is determined according to the negative pressure generator, a stainless steel pipe or carbon steel is selected according to different materials of added medicines, and the stainless steel is forbidden when HCl is added.
4. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the spraying inlet ball valve (3) is a three-piece welded ball valve, the caliber of the ball valve is DN40-50, the material is stainless steel or carbon steel, and the stainless steel is forbidden when HCl is added.
5. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the medicine feeding funnel (4) has a round opening with the caliber of DN800-900mm and is made of a steel plate metal plate with the thickness of 1-5mm, the bottom is connected with a large joint and a small joint, the large opening is 800-
The small opening is connected with a short connecting pipe (2) and a flange, the material of the dosing funnel is carbon steel, the dosing funnel is formed by welding after the metal plate is finished, and the outer surface of the dosing funnel is coated with an anticorrosive material after the dosing funnel is integrally finished; the inner surface is not subjected to anti-corrosion treatment; the supporting legs (6) are made of channel steel, and the inside and the outside of the supporting legs are coated with anticorrosive materials the same as those of the dosing hopper.
6. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the isolation butterfly valve (5) is a DN100-DN150 wafer type manual butterfly valve and is made of carbon steel.
7. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the dosing grille (7) adopts
The steel bar is made and welded, and the material is common carbon steel; the spraying pipe (8) is used for miningBy using
The steel pipe is made of common carbon steel;
the thread ball valve of the liquid medicine inlet valve (9) is made of stainless steel or carbon steel.
8. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the drug adding system and the cleaning system are isolated by using a negative pressure generator inlet valve (10) and a negative pressure generator outlet valve (11), and the negative pressure generator inlet valve (10) and the negative pressure generator outlet valve (11) are stop valves or gate valves.
9. The negative-pressure type solid-liquid dual-purpose medicine adding device according to claim 1, which is characterized in that: the negative pressure generator (1) is connected with the short connecting pipe (2) through flanges, polytetrafluoroethylene gaskets are arranged between the flanges, and the thickness of each gasket is 3-5 mm; the isolation butterfly valve (5) is connected with the negative pressure generator (1) and the dosing funnel (4) through flanges, the isolation butterfly valve (5) and the upper and lower flanges are sealed through polytetrafluoroethylene gaskets, and the thickness of the gaskets is 3-5 mm.
10. The use method of the negative-pressure solid-liquid dual-purpose medicine adding device according to any one of claims 1 to 9 is characterized in that: firstly, whether pipeline connection is correct or not is to be confirmed, whether the inlet and outlet directions are the same as the fluid direction of a chemical cleaning system or not is to be connected in parallel on a main pipeline of the chemical cleaning system, when the chemical cleaning system is used, all valves on a dosing device are confirmed to be closed, then an outlet valve (11) of a negative pressure generator is opened, then an inlet valve (10) of the negative pressure generator is opened slowly, a liquid return valve on the pipeline of the chemical cleaning system is closed slowly, pressure difference is generated in front of and behind the negative pressure generator (1), negative pressure is generated in the negative pressure generator (1), then an isolation butterfly valve (5) is opened slowly, an inlet ball valve (3) of a spray pipe is opened, the opening degree of the inlet valve (10) of the negative pressure generator is adjusted, so that spray liquid does not have accumulation in a dosing funnel (4), dosing is started to be carried out on the dosing funnel (4), solid medicines are placed on a dosing grid (7, the mixture enters a negative pressure generator (1) through an isolation butterfly valve (5), and then enters a chemical cleaning system through a pipeline at an expansion section of the negative pressure generator, when liquid is added with medicine, a liquid medicine inlet ball valve (9) is connected with a liquid container through an enhanced hose, when the medicine is added, the liquid medicine inlet ball valve (9) is opened, and the opening degree of the liquid medicine inlet ball valve (9) is adjusted to control the medicine inlet speed; when the dosing is stopped, the isolation butterfly valve (5) and the liquid dosing ball valve (9) are closed, the liquid return valve on the main path of the chemical cleaning system is opened, the inlet valve (10) and the outlet valve (11) of the negative pressure generator are closed, and the dosing process using the dosing device is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199330.XA CN112170363A (en) | 2020-11-01 | 2020-11-01 | Negative pressure type solid-liquid dual-purpose chemical adding device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199330.XA CN112170363A (en) | 2020-11-01 | 2020-11-01 | Negative pressure type solid-liquid dual-purpose chemical adding device and using method |
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| Publication Number | Publication Date |
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| CN112170363A true CN112170363A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011199330.XA Pending CN112170363A (en) | 2020-11-01 | 2020-11-01 | Negative pressure type solid-liquid dual-purpose chemical adding device and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116747723A (en) * | 2023-08-23 | 2023-09-15 | 河北迅清生物科技有限公司 | CIP (cleaning in place) mixing cleaning system |
-
2020
- 2020-11-01 CN CN202011199330.XA patent/CN112170363A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116747723A (en) * | 2023-08-23 | 2023-09-15 | 河北迅清生物科技有限公司 | CIP (cleaning in place) mixing cleaning system |
| CN116747723B (en) * | 2023-08-23 | 2023-10-20 | 河北迅清生物科技有限公司 | CIP (cleaning in place) mixing cleaning system |
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