CN102814139B - Dual-pump circulating stirring dispensing process - Google Patents

Abstract

The dual-port parallel pump circulating stirring dispensing device belongs to the dispensing field of sewage treatment, and is characterized in that tap water is added to the dispensing tank and coagulant used for sewage treatment is added at the same time, water is added to the liquid level sensor, and water addition is stopped. Open the solenoid valve A, turn on the plastic pump, the supernatant in the dispensing tank enters the upper suction pipe, and the solid particles at the bottom of the dispensing tank are sucked into the lower suction pipe. The fluid in the second suction pipe passes through the plastic pump suction pipe, plastic pump, stirring pipe and The stirring nozzle enters the dispensing tank, and the circulating fluid enters the dispensing tank to rotate the fluid in the tank, stir the coagulant, and after it is evenly and fully dissolved, close the solenoid valve A, open the solenoid valve B, and the liquid enters the liquid medicine storage tank for standby. When the required unit of the sewage treatment facility needs liquid medicine, the chemical liquid from the metering pump is transported to the required unit of the sewage treatment facility through the outlet pipe of the metering pump. It has the characteristics of less investment in equipment, simple structure, not easy to block and prevent pump overload, and easy maintenance and replacement.

Description

Double-port Parallel Pump Circulation Stirring Dispensing Technology

technical field

The double-port parallel pump circulation stirring dispensing process of the present invention relates to the technical field of pump circulation stirring medicine dispensing.

Background technique

The mixing and dispensing method of the agitator driven by the variable speed of the motor that is generally sold on the market and is being used in general sewage stations.

The mixing form is mainly composed of a stirring motor, a high transmission ratio reducer, a mixing blade, a dispensing tank, a support stand, etc. The high transmission ratio reducer generally adopts a cycloidal pinwheel reducer, which has a complex structure and high manufacturing precision requirements , high cost, difficult maintenance, and high technical requirements for maintenance workers. Generally, when this kind of reducer fails, it will be replaced with a new one, resulting in high maintenance and repair costs.

For a long time, the rated power of the various sizes and specifications of the mixing motors in the catalogs of environmental protection equipment companies and the dispensing devices in use is generally much greater than the actual power required for mixing. The main reason is that designers in the industry have become accustomed to comparing the power of stirring motors of the same size and specifications, and determine the motor power of newly designed products based on the idea of amplifying and reassuring.

After the dispensing device is installed in the sewage station, it is necessary to lead the tap water pipe to the top of the dosing device. When working, measure the coagulant dosage according to the required configuration concentration, and first add the required corresponding amount of coagulant to the dispensing tank , then turn on the tap water and add it to the dispensing tank, close the tap water valve when the water reaches the liquid level scale line on the dispensing tank, and then turn on the stirring motor to drive the blades to stir. Circulation, waiting for the next discharge into the liquid medicine storage tank; the configured liquid medicine in the liquid medicine storage tank is output to the required unit of the sewage treatment facility through the metering pump. Therefore, the idle rate of the stirring motor is high. For example, when the sewage treatment adopts the air flotation treatment process, generally a box of liquid medicine is stirred, and the stirring motor needs to work for 1 hour, and a box of liquid medicine can be used for the metering pump to work for 8 to 12 hours. The idle rate of the stirring motor is 87.5% to 91.7%.

The disadvantages of this kind of motor stirring are: low efficiency, complex structure, high manufacturing precision requirements, high cost, difficult maintenance, high technical level requirements for maintenance workers, long stirring time, large energy consumption, equipment idle rate high.

Application number: 200910039415.9 Chinese patent application for automatic dosing jet mixing and pump stirring sewage treatment system discloses a dispensing device using a pump as a stirring power, but the device has a defect: the dispensing water comes from a sewage pool, and the sewage will make the prepared The medicine liquid produces flocculation and precipitation, which reduces the efficacy of the medicine, and the flocculation and precipitation are transported and circulated by the pump, and the flocculated dirt is re-stirred to lose the effect of flocculation.

Contents of the invention

In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a pump-powered agitation sewage treatment dispensing process that reduces energy consumption, saves investment in mechanical agitation equipment, improves agitation efficiency, and is easy to maintain.

The technical solution of the present invention is a two-port parallel pump circulation stirring dispensing process including: dispensing tank 1, liquid level sensor 2, upper suction pipe 3, lower suction pipe 4, plastic pump suction pipe 5, workbench 6, emptying valve 7, Empty pipe 8, solenoid valve A9, plastic pump 10, check valve 11, stirring pipe 12, liquid medicine storage tank outlet pipe 13, metering pump 14, metering pump outlet pipe 15, medicine liquid storage tank 16, solenoid valve B17 , liquid medicine delivery pipe 18, stirring nozzle 19, tightening screw nut 21, tightening washer 22, stirring nozzle inlet pipe 23, stirring nozzle outlet pipe 24, tapered pipe thread 25, ordinary fine tooth thread 26, upper suction pipe 3 pipes The mouth and the lower suction pipe 4 are placed in the center of the dispensing tank 1, the upper suction pipe 3 and the lower suction pipe 4 are connected to the suction pipe 5 of the plastic pump, the suction pipe 5 of the plastic pump is connected to the inlet of the plastic pump 10, and the plastic pump 10 is connected to the stirring pipe 12. The stirring tube 12 is connected to the stirring nozzle 19, and the stirring tube 12 is equipped with a check valve 11; the bottom of the dispensing tank 1 is connected to the liquid medicine delivery pipe 18, and the electromagnetic valve B17 is installed on the medicine liquid delivery pipe 18; Stirring nozzle 19 is installed on the side; the mouth of the upper suction pipe 3 is placed in the center of the dispensing tank 1, and the height of the nozzle is installed at 1/2~1/3 of the total height of the dispensing tank 1, and the upper suction pipe 3 is horizontal .

The liquid medicine storage tank 16 is installed in the lower part of the medicine dispensing tank 1, the liquid medicine storage tank 16 is connected to the liquid medicine delivery pipe 18, and the front wall of the liquid medicine storage tank 16 is connected to the discharge pipe 13 of the liquid medicine storage tank.

The inlet of the metering pump 14 is connected to the discharge pipe 13 of the liquid medicine storage tank, and the outlet of the metering pump 14 is connected to the outlet pipe 15 of the metering pump.

The lower suction pipe 4 is characterized in that the nozzle end is inclined downward, and the angle between the center line of the lower suction pipe 4 and the center line of the medicine dispensing tank 1 is 75°.

The stirring nozzle 19 is characterized in that the included angle between the center line of the stirring nozzle inlet pipe 23 and the stirring nozzle 24 outlet pipe is 60°.

The stirring nozzle 19 is connected with the dispensing tank 1 through a common fine thread 26, and the dispensing tank 1 has a sealing gasket 22, a tightening nut 21 and a tapered pipe thread 25 which are tightly fixed with the dispensing tank 1 outside the wall of the dispensing tank 1.

The center of the bottom of the dispensing tank 1 is connected to an emptying pipe 8, and the emptying valve 7 is placed on the emptying pipe 8.

Described stirring tube 12 is equipped with check valve 11.

The diameter ratio of the upper suction pipe 3 and the lower suction pipe 4 is 2:1.

The plastic pump 10 is a plastic centrifugal pump

The double-port parallel pump circulating stirring dispensing process includes the following steps and is characterized in that:

a. Add the coagulant used for sewage treatment while adding tap water to the dispensing tank 1, add water to the liquid level sensor 2, and stop adding water;

b. Open the solenoid valve A9, turn on the plastic pump 10, the supernatant in the dispensing tank 1 enters the upper suction pipe 3, and the solid particles at the bottom of the dispensing tank 1 are sucked into the lower suction pipe 4, and the fluid in the two suction pipes passes through the plastic pump suction pipe together 5. The plastic pump 10, the stirring tube 12 and the stirring nozzle 19 enter the dispensing tank 1, and the angle between the inlet pipe 23 of the stirring nozzle and the center line of the outlet pipe of the stirring nozzle 24 is 60°. The circulating fluid enters the dispensing tank 1 to make the fluid in the tank Rotate to stir the sewage treatment coagulant;

c. After the sewage treatment coagulant is stirred evenly and fully dissolved, close the solenoid valve A9, open the solenoid valve B17 and enter the medicinal solution into the medicinal solution storage tank 6 for standby;

d. When the required unit of the sewage treatment facility needs liquid medicine, open the metering pump 14 and transport the liquid medicine to the required unit of the sewage treatment facility through the outlet pipe 15 of the metering pump.

The ratio of the suction volume of the upper suction pipe 3 and the lower suction pipe 4 described in step b is 2:1.

The stirring time of the stirring process described in step b is 30-40min.

For the lower suction pipe 4 described in step b, the nozzle end is inclined downward, and the included angle between the centerline of the lower suction pipe 4 and the centerline of the medicine dispensing tank 1 is 75°.

Beneficial effect

Compared with the stirring device powered by motor stirring, the equipment investment is less, the structure is simple, and the maintenance and replacement are easy.

The prepared medicinal liquid is discharged into the medicinal liquid storage tank 16, and the medicinal liquid can be supplied to the required units of the sewage treatment facility at any time. Not limited by the dispensing time of the dispensing tank 1.

The plastic pump 10 is a plastic centrifugal pump with corrosion resistance, low cost, low power, low energy consumption, simple operation and low maintenance cost.

The downward inclination of the lower suction pipe 4 nozzles can facilitate the suction of the granular coagulant at the bottom center of the dispensing tank 1 into the plastic pump 10, and accelerate the dissolution of the coagulant under the high-speed rotation of the plastic pump 10 impellers to improve the stirring efficiency.

The nozzle of the upper suction pipe 3 is located at the center of the dispensing tank 1 at 1/2~1/3 of the total height of the dispensing tank 1, and the ratio of the diameters of the upper suction pipe 3 and the lower suction pipe 4 is 2:1, ensuring that the upper suction pipe 3. The flow rate is greater than the flow rate of the lower suction pipe, avoiding excessive suction of solid granular coagulant, and preventing the pump from being blocked and overloaded to burn out the plastic pump.

Described stirring nozzle 19 is characterized in that the angle between the center line of the stirring nozzle inlet pipe 23 and the stirring nozzle 24 outlet pipe is 60°, and the circulating liquid enters the dispensing tank 1 to make the liquid in the tank rotate, and the sewage treatment coagulant Stir.

Stirring nozzle 19 is connected with dispensing tank 1 through ordinary fine thread 26, and there are sealing gasket 22, tightening nut 21 and tapered pipe thread 25 outside dispensing tank 1 wall and dispensing tank 1 can be installed by tightening on the outside of dispensing tank 1, Easy installation and maintenance.

The center of the bottom of the dispensing tank 1 is connected with an emptying pipe 8, and the emptying pipe 8 is equipped with an emptying valve 7, which is beneficial to the emptying and cleaning of the dispensing tank 1.

Description of drawings

Figure 1: The front view of the dual-port parallel pump circulation stirring dispensing process;

Figure 2: The top view of the dual-port parallel pump circulation stirring dispensing process;

Figure 3: Partial enlarged view of I;

Figure 4: Sectional view of the stirring nozzle.

In the figure: 1 dispensing tank, 2 liquid level sensor, 3 upper suction pipe, 4 lower suction pipe, 5 plastic pump suction pipe, 6 working table, 7 emptying valve, 8 emptying pipe, 9 solenoid valve A, 10 plastic pump, 11 Check valve, 12 Stirring pipe, 13 Discharge pipe of liquid medicine storage tank, 14 Metering pump, 15 Outlet pipe of metering pump, 16 Liquid medicine storage tank, 17 Solenoid valve B, 18 Liquid medicine delivery pipe, 19 Stirring nozzle, 21 Tightening screw nut, 22 tight washer, 23 stirring nozzle inlet pipe, 24 stirring nozzle outlet pipe, 25 taper pipe thread, 26 ordinary fine thread.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Example 1

The double-port parallel pump circulation stirring dispensing process includes: dispensing tank 1, liquid level sensor 2, upper suction pipe 3, lower suction pipe 4, plastic pump suction pipe 5, workbench 6, emptying valve 7, emptying pipe 8, electromagnetic Valve A9, plastic pump 10, check valve 11, stirring pipe 12, liquid medicine storage tank outlet pipe 13, metering pump 14, metering pump outlet pipe 15, medicine liquid storage tank 16, solenoid valve B17, medicine liquid delivery pipe 18 , agitating nozzle 19, tightening screw nut 21, tightening washer 22, agitating nozzle inlet pipe 23, agitating nozzle outlet pipe 24, taper pipe thread 25, ordinary fine thread 26, upper suction pipe 3 nozzles and lower suction pipe 4 The nozzle is placed in the center of the dispensing tank 1, the upper suction pipe 3 and the lower suction pipe 4 are connected to the suction pipe 5 of the plastic pump, the suction pipe 5 of the plastic pump is connected to the inlet of the plastic pump 10, the plastic pump 10 is connected to the stirring pipe 12, and the stirring pipe 12 is connected to A stirring nozzle 19, a check valve 11 is installed on the stirring tube 12; the bottom of the dispensing tank 1 is connected to a liquid medicine delivery pipe 18, and a solenoid valve B17 is installed on the medicine liquid delivery pipe 18; a stirring nozzle 19 is installed on the lower side of the medicine dispensing tank 1 The mouth of the upper suction pipe 3 is placed in the center of the dispensing tank 1, the height of the nozzle is installed at 1/2~1/3 of the total height of the dispensing tank 1, and the upper suction pipe 3 is horizontal.

The liquid medicine storage tank 16 is installed in the lower part of the medicine dispensing tank 1, the liquid medicine storage tank 16 is connected to the liquid medicine delivery pipe 18, and the front wall of the liquid medicine storage tank 16 is connected to the discharge pipe 13 of the liquid medicine storage tank.

The inlet of the metering pump 14 is connected to the discharge pipe 13 of the liquid medicine storage tank, and the outlet of the metering pump 14 is connected to the outlet pipe 15 of the metering pump.

Described lower suction pipe 4, nozzle end is inclined downward, and the center line of lower suction pipe 4 and the center line angle of dispensing tank 1 are 75 °.

The included angle between the centerlines of the stirring nozzle inlet pipe 23 of the stirring nozzle 19 and the outlet pipe of the stirring nozzle 24 is 60°.

The stirring nozzle 19 is connected with the dispensing tank 1 through a common fine thread 26, and the dispensing tank 1 has a sealing gasket 22, a tightening nut 21 and a tapered pipe thread 25 which are tightly fixed with the dispensing tank 1 outside the wall of the dispensing tank 1.

The center of the bottom of the dispensing tank 1 is connected to an emptying pipe 8, and the emptying valve 7 is placed on the emptying pipe 8.

Described stirring tube 12 is equipped with check valve 11.

The diameter ratio of the upper suction pipe 3 and the lower suction pipe 4 is 2:1.

The plastic pump 10 is a plastic centrifugal pump

The double-port parallel pump circulating stirring dispensing process includes the following steps:

a. Add the coagulant used for sewage treatment while adding tap water to the dispensing tank 1, add water to the liquid level sensor 2, and stop adding water;

b. Open the solenoid valve A9, turn on the plastic pump 10, the supernatant in the dispensing tank 1 enters the upper suction pipe 3, and the solid particles at the bottom of the dispensing tank 1 are sucked into the lower suction pipe 4, and the fluid in the two suction pipes passes through the plastic pump suction pipe together 5. The plastic pump 10, the stirring tube 12 and the stirring nozzle 19 enter the dispensing tank 1, and the angle between the inlet pipe 23 of the stirring nozzle and the center line of the outlet pipe of the stirring nozzle 24 is 60°. The circulating fluid enters the dispensing tank 1 to make the fluid in the tank Rotate to stir the sewage treatment coagulant;

c. After the sewage treatment coagulant is stirred evenly and fully dissolved, close the solenoid valve A9, open the solenoid valve B17 and enter the medicinal solution into the medicinal solution storage tank 6 for standby;

d. When the required unit of the sewage treatment facility needs liquid medicine, open the metering pump 14 and transport the liquid medicine to the required unit of the sewage treatment facility through the outlet pipe 15 of the metering pump.

The ratio of the suction volume of the upper suction pipe 3 and the lower suction pipe 4 described in step b is 2:1.

The stirring time of the stirring process described in step b is 30min.

For the lower suction pipe 4 described in step b, the nozzle end is inclined downward, and the included angle between the centerline of the lower suction pipe 4 and the centerline of the medicine dispensing tank 1 is 75°.

Example 2

The double-port parallel pump circulation stirring dispensing process includes: dispensing tank 1, liquid level sensor 2, upper suction pipe 3, lower suction pipe 4, plastic pump suction pipe 5, workbench 6, emptying valve 7, emptying pipe 8, electromagnetic Valve A9, plastic pump 10, check valve 11, stirring pipe 12, liquid medicine storage tank outlet pipe 13, metering pump 14, metering pump outlet pipe 15, medicine liquid storage tank 16, solenoid valve B17, medicine liquid delivery pipe 18 , agitating nozzle 19, tightening screw nut 21, tightening washer 22, agitating nozzle inlet pipe 23, agitating nozzle outlet pipe 24, taper pipe thread 25, ordinary fine thread 26, upper suction pipe 3 nozzles and lower suction pipe 4 The nozzle is placed in the center of the dispensing tank 1, the upper suction pipe 3 and the lower suction pipe 4 are connected to the suction pipe 5 of the plastic pump, the suction pipe 5 of the plastic pump is connected to the inlet of the plastic pump 10, the plastic pump 10 is connected to the stirring pipe 12, and the stirring pipe 12 is connected to A stirring nozzle 19, a check valve 11 is installed on the stirring tube 12; the bottom of the dispensing tank 1 is connected to a liquid medicine delivery pipe 18, and a solenoid valve B17 is installed on the medicine liquid delivery pipe 18; a stirring nozzle 19 is installed on the lower side of the medicine dispensing tank 1 The mouth of the upper suction pipe 3 is placed in the center of the dispensing tank 1, the height of the nozzle is installed at 1/2~1/3 of the total height of the dispensing tank 1, and the upper suction pipe 3 is horizontal.

The liquid medicine storage tank 16 is installed in the lower part of the medicine dispensing tank 1, the liquid medicine storage tank 16 is connected to the liquid medicine delivery pipe 18, and the front wall of the liquid medicine storage tank 16 is connected to the discharge pipe 13 of the liquid medicine storage tank.

The inlet of the metering pump 14 is connected to the discharge pipe 13 of the liquid medicine storage tank, and the outlet of the metering pump 14 is connected to the outlet pipe 15 of the metering pump.

Described lower suction pipe 4, nozzle end is inclined downward, and the center line of lower suction pipe 4 and the center line angle of dispensing tank 1 are 75 °.

The included angle between the centerlines of the stirring nozzle inlet pipe 23 of the stirring nozzle 19 and the outlet pipe of the stirring nozzle 24 is 60°.

The stirring nozzle 19 is connected with the dispensing tank 1 through a common fine thread 26, and the dispensing tank 1 has a sealing gasket 22, a tightening nut 21 and a tapered pipe thread 25 which are tightly fixed with the dispensing tank 1 outside the wall of the dispensing tank 1.

The center of the bottom of the dispensing tank 1 is connected to an emptying pipe 8, and the emptying valve 7 is placed on the emptying pipe 8.

Described stirring tube 12 is equipped with check valve 11.

The diameter ratio of the upper suction pipe 3 and the lower suction pipe 4 is 2:1.

The plastic pump 10 is a plastic centrifugal pump

The double-port parallel pump circulating stirring dispensing process includes the following steps:

a. Add the coagulant used for sewage treatment while adding tap water to the dispensing tank 1, add water to the liquid level sensor 2, and stop adding water;

b. Open the solenoid valve A9, turn on the plastic pump 10, the supernatant in the dispensing tank 1 enters the upper suction pipe 3, and the solid particles at the bottom of the dispensing tank 1 are sucked into the lower suction pipe 4, and the fluid in the two suction pipes passes through the plastic pump suction pipe together 5. The plastic pump 10, the stirring tube 12 and the stirring nozzle 19 enter the dispensing tank 1, and the angle between the inlet pipe 23 of the stirring nozzle and the center line of the outlet pipe of the stirring nozzle 24 is 60°. The circulating fluid enters the dispensing tank 1 to make the fluid in the tank Rotate to stir the sewage treatment coagulant;

c. After the sewage treatment coagulant is stirred evenly and fully dissolved, close the solenoid valve A9, open the solenoid valve B17 and enter the medicinal solution into the medicinal solution storage tank 6 for standby;

d. When the required unit of the sewage treatment facility needs liquid medicine, open the metering pump 14 and transport the liquid medicine to the required unit of the sewage treatment facility through the outlet pipe 15 of the metering pump.

The ratio of the suction volume of the upper suction pipe 3 and the lower suction pipe 4 described in step b is 2:1.

The stirring time of the stirring process described in step b is 40min.

For the lower suction pipe 4 described in step b, the nozzle end is inclined downward, and the included angle between the centerline of the lower suction pipe 4 and the centerline of the medicine dispensing tank 1 is 75°.

Claims (3)

1. the twoport pump circulation stirring technique of making up a prescription of going forward side by side comprises: dispensing canister, liquid level sensor, upper suction line, lower suction line, plastic pump suction line, workbench, exhaust-valve, evacuated tube, magnetic valve A, plastic pump, check-valves, stirring pipe, liquid storage tank discharge nozzle, measuring pump, measuring pump outlet, liquid storage tank, magnetic valve B, liquid carrier pipe, stir nozzle, tightening screw, tightening packing ring, stir nozzle inlet pipe, stir jet expansion pipe, taper pipe thread, common fine thread, it is characterized in that: the upper suction line mouth of pipe and the lower suction line mouth of pipe are placed in dispensing canister center of circle portion, upper suction line, lower suction line connects plastics pump suction pipe, the import of plastic pump suction line access plastic pump, plastic pump connects stirring pipe, stirring pipe connects stirring nozzle, loaded check valve in stirring pipe, described dispensing canister bottom connects liquid carrier pipe, fills magnetic valve B on liquid carrier pipe, described dispensing canister following side dress stirs nozzle, the described upper suction line mouth of pipe is placed in dispensing canister center, and mouth of pipe height is installed on 1/2～1/3 place of dispensing canister height overall, and upper suction line is horizontal,

Described liquid storage tank is arranged on dispensing canister bottom, and liquid storage tank top connects liquid carrier pipe, and liquid storage tank antetheca connects liquid storage tank discharge nozzle;

Described measuring pump import connects liquid storage tank discharge nozzle, and measuring pump outlet connects measuring pump outlet;

The angle of described stirring nozzle inlet pipe and stirring jet expansion tube hub line is 60 °;

Described stirring nozzle is connected with dispensing canister by common fine thread, and the tank skin that makes up a prescription has seal washer, tightening screw and taper pipe thread and dispensing canister tightening outward;

Described place of dispensing canister bottom centre connects evacuated tube, and exhaust-valve is placed in evacuated tube;

Loaded check valve in described stirring pipe;

The ratio of described upper suction line and the caliber of lower suction line is 2: 1;

The twoport pump circulation stirring technique of making up a prescription of going forward side by side, comprises the following steps:

A, add sewage disposal coagulant used add running water in dispensing canister in, add water to liquid level sensor, stop adding water;

B, open magnetic valve A, open plastic pump, supernatant in dispensing canister enters suction line, dispensing canister bottom solid particle is inhaled in lower suction line, fluid in upper and lower suction line enters in dispensing canister by plastic pump suction line, plastic pump, stirring pipe and stirring nozzle jointly, the angle that stirs nozzle inlet pipe and stirring jet expansion tube hub line is 60 °, and the fluid of circulation enters in dispensing canister and makes fluid rotary in tank, and sewage disposal coagulant is stirred;

C, after sewage disposal coagulant stirs and fully dissolves, shut electromagnetic valve A, opening magnetic valve B liquid, to enter liquid storage tank for subsequent use;

When the required unit of d, sewage treatment facility needs liquid, open the required unit that is delivered to sewage treatment facility from measuring pump liquid by measuring pump outlet;

The soakage of the upper and lower suction line in step b: upper suction line is 2: 1 with the ratio of lower suction line soakage.

2. the twoport as claimed in claim 1 pump circulation stirring technique of making up a prescription of going forward side by side, is characterized in that: the lower suction line described in step b, and nose end is downward-sloping, and the center line angle of the center line of lower suction line and dispensing canister is 75 °.

3. the twoport as claimed in claim 1 pump circulation stirring technique of making up a prescription of going forward side by side, is characterized in that: step b plastic pump is plastic centrifugal pump.

Images