CN214528409U - PAC dosing system with prevent blockking up function - Google Patents

Abstract

The utility model relates to a PAC medicine adding system with anti-blocking function, which comprises a dry powder mixing and diluting device for containing PAC solution and a medicine feeding pipeline for feeding the PAC solution into a coagulation tank, wherein a solution pump for pumping the PAC solution in the dry powder mixing and diluting device into the coagulation tank is arranged on the medicine feeding pipeline; a dilution water inlet is formed in one side of the upstream of the administration pipeline, and the solution pump is positioned at the upstream of the dilution water inlet; the administration pipeline is connected with the dilution pipeline through a dilution water access port, the other end of the dilution pipeline is communicated with the reclaimed water pool, and the dilution pipeline is provided with a reclaimed water pump for pumping reclaimed water in the reclaimed water pool into the administration pipeline through the dilution water access port and a check valve for preventing PAC solution from flowing backwards to the dilution pipeline. The normal water enters the administration pipeline to dilute the PAC solution, so that the viscosity and concentration of the PAC solution can be reduced, the pipeline is not easy to block, and the subsequent reaction of the PAC solution is relatively thorough.

Description

PAC dosing system with prevent blockking up function

Technical Field

The utility model relates to a sewage treatment technical field, more specifically say, it relates to a PAC medicine system with prevent blockking up function.

Background

The coagulation process is an important link in the water treatment process and is used as a preorder process, and the coagulation process has great influence on the operation condition of the subsequent flow, the quality of the subsequent effluent and the treatment cost. The treatment objects of the coagulation technology are suspended matters and colloid substances in water, the suspended matters and the colloid in the water form large-particle floccules by adding a flocculating agent, and then the large-particle floccules are clarified and precipitated for separation. PAC (polyaluminium chloride) is widely applied to the existing sewage treatment link of a water plant as a common flocculating agent, after sewage in a coagulation tank reacts with PAC, phosphorus-containing suspended matters and colloids form large-particle flocculating bodies, and the phosphorus content in water is reduced, so that the phosphorus content in water can reflect the completion degree of a flocculation reaction.

The traditional PAC dosing system usually adopts dry powder mixing and diluting equipment to prepare a solution, and then the solution is directly added into a coagulation tank, the solution is limited by the equipment capacity, and the minimum concentration of the prepared solution is generally 2%. PAC solution generally has higher viscosity this moment, because it is generally longer to add medicine pipeline length, PAC solution adhesion leads to adding the jam of medicine pipeline after the inside dry and knot of pipeline easily, increases the maintenance management work load of system. In addition, the high concentration of the solution of the chemical agent easily causes incomplete reaction of the chemical agent, and the flocculation effect is not good after the waste of the chemical agent.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a PAC medicine system with prevent blockking up function can solve traditional PAC medicine system pipeline and easily block up, the medicament participates in the not thorough problem of reaction.

The utility model discloses a PAC medicine system with prevent blockking up function provides following technical scheme:

a PAC dosing system with an anti-blocking function comprises dry powder mixing and diluting equipment for containing PAC solution and a dosing pipeline for feeding the PAC solution into a coagulation tank, wherein a solution pump for pumping the PAC solution in the dry powder mixing and diluting equipment into the coagulation tank is arranged on the dosing pipeline; a dilution water inlet is formed in one side of the upstream of the administration pipeline, and the solution pump is positioned at the upstream of the dilution water inlet;

the administration pipeline is connected with the dilution pipeline through a dilution water access port, the other end of the dilution pipeline is communicated with the reclaimed water pool, and the dilution pipeline is provided with a reclaimed water pump for pumping reclaimed water in the reclaimed water pool into the administration pipeline through the dilution water access port and a check valve for preventing PAC solution from flowing backwards to the dilution pipeline.

Has the advantages that: the utility model discloses a PAC medicine system with prevent blockking up function, the pipeline of dosing inserts the dilution pipeline in the upper reaches one side of route of dosing, and the dilution pipeline can dilute PAC solution in pouring into the pipeline of dosing with the normal water, reduces the viscosity of PAC solution, and the PAC solution after diluting is more easily fully reacted with sewage in getting into the coagulation basin, and the reaction effect is more thorough; be equipped with the check valve on the dilution pipeline, can guarantee that PAC solution can not flow backward to the dilution pipeline, dilute work and can normally go on, because dilution water inserts the mouth and is located the upper reaches one side on the pipeline of dosing, what the pipeline downstream part is longer is that PAC solution through diluting is inside to flow, and it is reasonable to set up, and the pipeline of dosing is more difficult to block up, and PAC solution and well water also can the intensive mixing even. The utility model discloses a PAC medicine system with prevent blockking up function can solve traditional PAC and add easy jam of medicine system pipeline, medicament participation reaction not thorough problem.

Furthermore, on the administration pipeline, a pressure relief pipeline provided with a safety valve is externally connected to one side of the upstream of the dilution water access port, and the other end of the pressure relief pipeline is provided with a pressure relief port.

Has the advantages that: the safety valve can be conducted when the pressure of the administration pipeline reaches a certain value, the pressure in the administration pipeline is unloaded, the safety of the system is ensured when the downstream of the administration pipeline is blocked, and the safety valve plays an important role in protecting the safety of a human body and the safe operation of the system.

Further, PAC medicine system with prevent blockking up function still includes the PLC controller and installs the online detector of total phosphorus in coagulating basin water outlet department, and the online detector of total phosphorus is used for detecting the phosphorus content of coagulating basin and transmits the testing result for the PLC controller, and the solution pump is adjusted in order to adjust the flow of PAC solution through the testing result of the online detector of total phosphorus to the PLC controller.

Has the advantages that: the PLC can automatically adjust the flow of the PAC solution according to the reaction effect in the coagulation tank, and then adjust the PAC dosage to the coagulation tank to realize the automatic adjustment function.

Further, be equipped with solution electromagnetic control valve in the upper reaches of dilution water access mouth on the pipeline of dosing, be equipped with well water electromagnetic flowmeter on the dilution pipeline, solution electromagnetic control valve is connected with the PLC controller electricity, and the flow of PAC solution is adjusted through adjusting solution electromagnetic control valve to the PLC controller.

Has the advantages that: besides the solution pump, the flow of the PAC solution can be adjusted by adjusting the solution electromagnetic adjusting valve, the flow adjusting mode of the PAC solution is more flexible, and the improvement of the adjusting precision is facilitated.

Further, a PAC solution flowmeter and a medium water flowmeter are respectively arranged on the upstream of the dilution water access port and the dilution pipeline on the administration pipeline.

Has the advantages that: the PAC solution flowmeter and the reclaimed water flowmeter are arranged to allow manual observation of the flow of the PAC solution and the reclaimed water, so that manual adjustment of the actual flow of the reclaimed water and the PAC solution can be conveniently carried out according to flow indication.

Drawings

FIG. 1 is a schematic diagram of the PAC dosing system with anti-clogging function of the present invention;

reference numerals: 1-dry powder mixing and diluting equipment; 2-administration line; 3-a solution pump; 4-solution electromagnetic regulating valve; 5-PAC solution flow meter; 6-pressure relief pipeline; 7-a safety valve; 8-a check valve; 9-reclaimed water electromagnetic regulating valve; 10-a dilution line; 11-a reclaimed water pump; 12-a middle water pool; 13-a coagulation tank; 14-total phosphorus on-line detector; 15-a PLC controller; and 16-reclaimed water flow meter.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The utility model discloses a PAC medicine system's with prevent blockking up function concrete embodiment 1:

the utility model discloses a PAC medicine system with prevent blockking up function, as shown in figure 1, mix dilution equipment 1 and dosing pipeline 2 including dry powder, dry powder mixes dilution equipment 1 and has held the PAC solution, is equipped with solution pump 3 on dosing pipeline 2, and solution pump 3 can mix the PAC solution pump of dilution equipment 1 with dry powder and go into in coagulating basin 13. The administration pipeline 2 is provided with a dilution water access at the downstream position of the solution pump 3, the administration pipeline 2 is externally connected with a dilution pipeline 10 through the dilution water access, two ends of the dilution pipeline 10 are respectively communicated with the administration pipeline 2 and the reclaimed water tank 12, the dilution pipeline 10 is provided with a reclaimed water pump 11, reclaimed water in the reclaimed water tank 12 can be pumped into the administration pipeline through the dilution water access to dilute the PAC solution, wherein the dilution pipeline 10 is further provided with a check valve 8, the check valve 8 only allows liquid in the dilution pipeline 10 to flow to the dilution water access in one direction from the reclaimed water tank 12, the PAC solution can be prevented from flowing backwards into the dilution pipeline 10 when the pressure in the administration pipeline 2 is larger, and the normal operation of the dilution function is ensured. The utility model discloses in, dilution water inserts the mouth and lies in the upper reaches one side of pipeline 2 of dosing on the route of dosing for what longer one section inside circulated in the pipeline low reaches part of dosing is through diluting, the PAC solution that the viscosity is lower, and the pipeline of dosing is difficult for taking place to block up.

Dose on the pipeline 2 and be equipped with the solution electromagnetic control valve 4 that can be used to adjust PAC solution flow in the upstream position of dilution water access mouth, the PAC solution flowmeter 5 that can be used to survey PAC solution flow is and the external pressure release pipeline 6 that has, the other end of pressure release pipeline 6 is equipped with the pressure release mouth, the correspondence of pressure release mouth below is provided with the container that gathers materials, install relief valve 7 on the pressure release pipeline 6, when 2 internal pressure of pipeline of dosing reachs a definite value, relief valve 7 switches on, make the liquid in the pipeline of dosing 2 discharge to the container that gathers materials through the pressure release mouth. The safety valve 7 is arranged, so that the pressure in the administration pipeline can be timely removed when the administration pipeline is blocked, and the safety of personnel and equipment is ensured. The dilution pipeline 10 is also provided with a reclaimed water electromagnetic regulating valve 9 which can be used for regulating the flow rate of reclaimed water and a reclaimed water flow meter 16 which can be used for observing the flow rate of the reclaimed water.

This PAC charge system with prevent blockking up function still includes PLC controller 15 and installs the online detector 14 of total phosphorus of the delivery port department in coagulating basin 13, because through flocculation process after, the phosphorus-containing suspended solid and colloid form the large granule flocculating constituent, and the phosphorus content in aquatic reduces, and the content of aquatic phosphorus can be used for reflecting whether complete and the water after the reaction satisfies the requirement. The PLC 15 is connected with total phosphorus on-line measuring appearance 14, solution pump 3 and solution electromagnetic control valve 4 electricity respectively, and the PLC can adjust the frequency of solution pump 3 or the aperture of solution electromagnetic control valve 4 according to total phosphorus on-line measuring appearance 14's monitoring information, makes the flow of PAC solution adjust according to the reaction degree of coagulating basin, reaches better flocculation effect then.

Besides the automatic adjusting process, an operator can also manually adjust the solution pump 3 or the solution electromagnetic adjusting valve 4 according to the reaction effect of the coagulation tank and the display indication of the PAC solution flowmeter 5; the dilution ratio of the PAC solution can also be changed by adjusting the flow of the reclaimed water through the operation of a reclaimed water pump 11 or a reclaimed water electromagnetic adjusting valve 9.

The utility model discloses a PAC charge system with prevent blockking up function, it has dilution pipeline 10 to connect outward on pipeline 2 of dosing, and dilution water between two pipelines inserts mouthful position and is located upstream one side of pipeline 2 of dosing, and the position sets up rationally, can make be located dilution water insert mouthful low reaches one side, longer one section of the inside circulation of pipeline of dosing be through the PAC solution of dilution, difficult production is blockked up. Be equipped with check valve 8 on the dilution pipeline, can prevent effectively that PAC solution from flowing backward, guaranteed the normal clear of diluting the function.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a PAC medicine system with prevent blockking up function which characterized by: the system comprises dry powder mixing and diluting equipment for containing PAC solution and a dosing pipeline for feeding the PAC solution into a coagulation tank, wherein a solution pump for pumping the PAC solution in the dry powder mixing and diluting equipment into the coagulation tank is arranged on the dosing pipeline; a dilution water inlet is formed in one side of the upstream of the administration pipeline, and the solution pump is positioned at the upstream of the dilution water inlet;

the administration pipeline is connected with the dilution pipeline through a dilution water access port, the other end of the dilution pipeline is communicated with the reclaimed water pool, and the dilution pipeline is provided with a reclaimed water pump for pumping reclaimed water in the reclaimed water pool into the administration pipeline through the dilution water access port and a check valve for preventing PAC solution from flowing backwards to the dilution pipeline.

2. The PAC dosing system with anti-clogging function as claimed in claim 1, wherein a pressure relief pipeline provided with a safety valve is externally connected to the dosing pipeline at one side of the upstream of the dilution water inlet, and a pressure relief port is arranged at the other end of the pressure relief pipeline.

3. The PAC dosing system with the anti-clogging function according to claim 1 or 2, further comprising a PLC and a total phosphorus on-line detector installed at the water outlet of the coagulation basin, wherein the total phosphorus on-line detector is used for detecting the phosphorus content of the coagulation basin and transmitting the detection result to the PLC, and the PLC adjusts the solution pump according to the detection result of the total phosphorus on-line detector so as to adjust the flow of the PAC solution.

4. The PAC dosing system with the anti-clogging function according to claim 3, wherein a solution electromagnetic regulating valve is arranged on the dosing pipeline at the upstream of the dilution water inlet, a reclaimed water electromagnetic flow meter is arranged on the dilution pipeline, the solution electromagnetic regulating valve is electrically connected with a PLC controller, and the PLC controller adjusts the flow of the PAC solution by regulating the solution electromagnetic regulating valve.

5. The anti-clogging PAC dosing system of claim 4, wherein the dosing line is provided with a PAC solution flow meter and a medium flow meter upstream of the dilution water inlet and on the dilution line, respectively.

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