CN214369325U

CN214369325U - Drainage pipeline for ion exchange resin regeneration wastewater

Info

Publication number: CN214369325U
Application number: CN202023034154.2U
Authority: CN
Inventors: 马美飞; 苏金保; 周群寿; 邱文韬
Original assignee: Nanjing Cec Panda Lcd Material Technology Co ltd
Current assignee: Nanjing Cec Panda Lcd Material Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-08
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a drainage pipeline for ion exchange resin regeneration wastewater, which comprises a first pipeline and a second pipeline, the third pipeline, first tube coupling to neutralization system, the second pipeline with the emergent pond of third pipeline intercommunication, the one end that the first pipeline is close to neutralization system includes U type section, the U type section mouth of pipe level that is close to neutralization system one side is higher than the U type section mouth of pipe level that deviates from neutralization system one side, the U type section bottom at the first pipeline is connected to the third pipeline, install pH sensor and manual ball valve along the rivers direction in proper order on the first pipeline, pH sensor establishes ties pH changer and first valve in proper order, second pipeline and third pipeline set up respectively in the side of intaking and the play water side of manual ball valve, be equipped with the second valve on the second pipeline, be equipped with the third valve on the third pipeline, second valve and third valve are connected respectively to the first valve. The utility model discloses can realize the pH value of on-line monitoring waste water.

Description

Drainage pipeline for ion exchange resin regeneration wastewater

Technical Field

The utility model belongs to the technical field of the pipeline, concretely relates to ion exchange resin regeneration waste water's drainage pipe.

Background

The regenerated chemical hydrochloric acid of the cation bed and the regenerated sodium hydroxide of the anion bed are excessive, and the generated wastewater is normally discharged into an acid-base neutralization system because the regeneration of the anion bed and the cation bed is carried out simultaneously, and can be discharged after being treated to reach the environmental-friendly discharge standard required by a company. The emergency pool is temporarily stored only when the wastewater treatment does not reach the standard. The existing drainage pipeline for the regenerated wastewater has the following design defects:

1. the load of a wastewater neutralization system is increased, the pH measurement is unstable, a dosing valve is frequently opened, and particularly, the inflow water quantity of the neutralization system is too large, so that the neutralization system can overflow to seriously pollute the site and corrode equipment;

2. when the pH value of the regeneration wastewater is too low (< 3) or too high (> 10), a neutralization system cannot neutralize in time, so that the pH value of the drainage water easily exceeds the requirement of environmental protection standards; the acid and alkali consumption is increased during neutralization, so that the water treatment cost is increased;

3. the manual operation frequency and the safety of personnel are increased, and the working efficiency is seriously reduced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a drainage pipeline for ion exchange resin regeneration wastewater.

The technical scheme of the utility model is that: the utility model provides a drainage pipeline of ion exchange resin regeneration waste water, includes first pipeline, second pipeline, third pipeline, first tube coupling to neutralization system, the second pipeline with the third pipeline is the bypass pipeline of first pipeline, the second pipeline with the emergent pond of third pipeline intercommunication, the one end that first pipeline is close to neutralization system includes U type section, is close to U type section mouth of pipe level of neutralization system one side is higher than the U type section mouth of pipe level that deviates from neutralization system one side, the upper end mouth of pipe level of second pipeline is the same with the low mouth of pipe level of U type section, the third tube coupling is in U type section bottom, install pH sensor and manual ball valve along the water flow direction in proper order on the first pipeline, pH sensor establishes ties pH changer and solenoid valve in proper order, second pipeline and third pipeline set up respectively in the intake side and the play water side of manual ball valve, and a second valve is arranged on the second pipeline, a third valve is arranged on the third pipeline, and the electromagnetic valve is connected with the second valve and the third valve. The level of the second valve is higher than the level of the third valve.

The second valve and the third valve are pneumatic valves.

And a relay is arranged in the pH sensor.

The beneficial effects of the utility model reside in that:

1. the utility model discloses install pH sensor and pH changer on the drain pipeline of regeneration waste water, can realize the pH value of on-line monitoring waste water.

2. When the pH value of the regenerated drainage water is too high or too low, a relay is arranged in the pH sensor and is closed, the electromagnetic valve controls the second valve to be opened, the regenerated wastewater is collected into the emergency water pool, and the regenerated wastewater is conveyed to the neutralization system after being neutralized.

3. The utility model discloses a structural design increases with opening with the second valve and the third valve of closing, avoids the second to open the third valve and closes and cause neutralization system pH disorder or the second valve closes the third valve and opens and cause the waste water that can go into neutralization system directly and get into emergent pond and lead to the liquid level too high, reduces the problem of waste water treatment efficiency.

4. The pH value of the regenerated drainage water of the yin-yang bed of the pure water system is too low (< 3) or too high (> 10) to enter an emergency water tank, the pH fluctuation of the waste water neutralization system is stable, the frequent opening of a dosing valve is reduced, and the maintenance frequency of facilities is reduced.

5. When the pH value of the regeneration wastewater is too low (< 3) or too high (> 10), the acid and alkali dosage is reduced during neutralization, and the consumption of chemicals is saved.

6. The personnel operation is reduced, and the automatic operation of the system is increased.

7. The water quality of the wastewater discharged by the wastewater system is stable, and the environmental protection requirement is met.

Drawings

FIG. 1 is a schematic view of the structure of a drainage pipeline for ion exchange resin regeneration wastewater of the present invention.

Reference numerals: 1. a pH sensor; 2. a pH transmitter; 3. an electromagnetic valve; 4. a second pipeline; 5. a first pipeline; 6. an emergency pool; 7. a third pipeline; 8. a third valve; 9. a U-shaped section; 10. a neutralization system; 11. a manual ball valve; 12. a second valve.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings, but the present application is not limited thereto. After reading the present invention, modifications of various equivalent forms of the invention by those skilled in the art will fall within the scope of the invention as defined by the appended claims.

Referring to fig. 1, the utility model provides a drainage pipeline for ion exchange resin regeneration wastewater, which comprises a first pipeline 5, a second pipeline 4 and a third pipeline 7, wherein the first pipeline 5 is connected to a neutralization system 10, the second pipeline 4 and the third pipeline 7 are bypass pipelines of the first pipeline 5, the second pipeline 4 and the third pipeline 7 are communicated with an emergency pool, one end of the first pipeline 5 close to the neutralization system 10 comprises a U-shaped section 9, the pipe orifice horizontal height of the U-shaped section 9 close to one side of the neutralization system is higher than that of the U-shaped section 9 far away from one side of the neutralization system, the pipe orifice horizontal height of the upper end of the second pipeline 4 is the same as that of the U-shaped section 9 far away from one side of the neutralization system, the third pipeline 7 is connected to the bottom of the U-shaped section of the first pipeline 5, a pH sensor 1 and a manual ball valve 11 are sequentially installed on the first pipeline 5 along the water flow direction, the pH sensor is connected with the pH transmitter and the first valve 3 in series in sequence, the second pipeline 4 and the third pipeline 7 are respectively arranged on the water inlet side and the water outlet side of the manual ball valve 11, the second valve 12 is arranged on the second pipeline 4, the third valve 8 is arranged on the third pipeline 7, the first valve 3 is connected with the second valve 12 and the third valve 8, and the level of the second valve 12 is higher than that of the third valve 8.

The first valve 3 is an electromagnetic valve, and the second valve 12 and the third valve 8 are pneumatic valves. The pH sensor 1 is internally provided with a relay.

The utility model discloses a theory of operation: the regenerated wastewater enters a first pipeline 5, the pH value of the wastewater is detected through a pH sensor, a relay is arranged in the pH sensor and is closed when the pH value of the regenerated drainage is too high or too low, a pneumatic valve 12 on a second pipeline 4 and a pneumatic valve 8 on a third pipeline 7 are controlled to be opened through an electromagnetic valve 3, the regenerated wastewater is collected into an emergency water tank, and the regenerated wastewater is conveyed to a neutralization system after being neutralized; the end, close to the neutralizing system, of the first pipeline comprises a U-shaped section 9, the horizontal height of a pipe orifice of the U-shaped section 9, close to one side of the neutralizing system, is higher than the horizontal height of a pipe orifice of the U-shaped section 9, far away from one side of the neutralizing system, the horizontal height of a pipe orifice at the upper end of the second pipeline 4 is the same as the horizontal height of a pipe orifice at the lower end of the U-shaped section, and when a pneumatic valve on the second pipeline 4 is opened, the height of the pipe orifice at the higher end of the U-shaped section is higher than the height of the pneumatic valve on the second pipeline 4, so that wastewater flows to the emergency water pool 6 and cannot flow to the neutralizing system 10; the waste water flows along the lines to the neutralization system 10 when the pneumatic valves on the second line 4 and the third line 7 are closed. Because the solenoid valves 3 are respectively connected with the two pneumatic valves, the two pneumatic valves are opened and closed simultaneously.

The reason for simultaneous opening and closing is to prevent part of the waste water having too high or too low pH from accumulating at the low side of the U-tube at the same time when the discharge pneumatic valve 12 is opened.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a drainage pipeline of ion exchange resin regeneration waste water, its characterized in that includes first pipeline, second pipeline, third pipeline, first tube coupling to neutralization system, the second pipeline with the third pipeline is the bypass pipeline of first pipeline, the second pipeline with the emergent pond of third pipeline intercommunication, the one end that first pipeline is close to neutralization system includes U type section, is close to U type section mouth of pipe level of neutralization system one side is higher than the U type section mouth of pipe level that deviates from neutralization system one side, the upper end mouth of pipe level of second pipeline is the same with U type section low mouth level, the third tube coupling is in U type section bottom, install pH sensor and manual ball valve along the water flow direction in proper order on the first pipeline, the pH sensor is established ties pH changer and solenoid valve in proper order, second pipeline and third pipeline set up respectively in the intake side and the delivery side of manual ball valve, and a second valve is arranged on the second pipeline, a third valve is arranged on the third pipeline, and the electromagnetic valve is connected with the second valve and the third valve.

2. The drain line for ion exchange resin regeneration wastewater according to claim 1, wherein the level of the second valve is higher than the level of the third valve.

3. The drain line for ion exchange resin regeneration wastewater according to claim 1, wherein the second valve and the third valve are pneumatic valves.

4. The drainage pipeline for ion exchange resin regeneration wastewater as claimed in claim 1, wherein the pH sensor is provided with a relay inside.