CN215116201U

CN215116201U - Chemical analysis instrument preprocessing device

Info

Publication number: CN215116201U
Application number: CN202120215282.2U
Authority: CN
Inventors: 丁彬彬; 曾宪德; 张晓文; 金文刚
Original assignee: Shenzhen Zhongtao Environmental Protection Engineering Technology Co ltd
Current assignee: Shenzhen Zhongtao Environmental Protection Engineering Technology Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-12-10
Anticipated expiration: 2031-01-26

Abstract

The utility model provides a chemical analysis instrument preprocessing device, including the sampling pump, ultrafiltration membrane subassembly, high compression pump and chemical analysis instrument, the sampling pump is arranged in biochemical pond, the output of sampling pump and ultrafiltration membrane subassembly's input are through first connecting pipe intercommunication, ultrafiltration membrane subassembly's output intercommunication has two sets of second connecting pipes, the one end of two sets of second connecting pipes communicates respectively has two sets of diaphragm pumps, and all be provided with first three-way valve on two sets of second connecting pipes, high compression pump's output and two sets of first three-way valve intercommunication, the output of two sets of diaphragm pumps is provided with the third connecting pipe, the sampling end of chemical analysis instrument and the intercommunication of third connecting pipe, and be provided with the second three-way valve on the third connecting pipe. The utility model discloses can keep mud suspension, reduce the deposit, through mechanical cleaning, outside aeration erodees, and the triple measure of inside high-pressure gas recoil alleviates the membrane pollution, reduces the maintenance, prolongs ceramic membrane's life.

Description

Chemical analysis instrument preprocessing device

Technical Field

The utility model relates to a chemical analysis instrument preprocessing device technical field specifically is a chemical analysis instrument preprocessing device.

Background

Along with the development of Chinese economy and the gradual improvement of the living standard of people, the intelligent sewage control technology has higher requirements on the improvement of environmental quality, is gradually applied to the monitoring process of the sewage treatment process, obtains quite good effect, saves both human resources and energy, and has wide development prospect. The online monitoring of the water quality, which is an important process parameter in sewage treatment, is particularly important for the intelligent control of sewage. At present, the online water quality monitoring system mainly monitors and continuously inspects a polluted discharge source in real time, judges the water quality and subsequent treatment work according to various monitoring and inspection data, and when the instruments are used for monitoring the process of a sewage plant, due to the reasons of high sludge concentration, high humidity and the like in a biochemical tank, the monitoring numerical value is not accurate, so that a proper pretreatment system is urgently needed. The online water quality pretreatment sampling system is a precondition for guaranteeing the normal operation of online water quality instruments, and long-term troubles the normal operation of the online water quality system, and the online water quality monitoring pretreatment sampling system plays an important role and significance in guaranteeing the normal operation of an intelligent control system and reducing the operation and maintenance workload, so that a pretreatment device of a chemical analysis instrument is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chemical analysis instrument preprocessing device uses the high-pressure pump to carry out gaseous recoil, carries out membrane surface mechanical cleaning simultaneously, and outside aeration erodees triple measure and alleviates the membrane pollution, reduces the maintenance, through the alternative work who uses first tubular ceramic membrane and second tubular ceramic membrane, opens the aeration machine and aerates equipment, can keep mud suspension, reduces the deposit to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a chemical analysis instrument preprocessing device, including the sampling pump, ultrafiltration membrane subassembly, high compression pump and chemical analysis instrument, the sampling pump sets up in biochemical pond, the output of sampling pump and ultrafiltration membrane subassembly's input are through first connecting pipe intercommunication, ultrafiltration membrane subassembly's output intercommunication has two sets of second connecting pipes, the one end of two sets of second connecting pipes communicates respectively has two sets of diaphragm pumps, and all be provided with first three-way valve on two sets of second connecting pipes, high compression pump's output and two sets of first three-way valve intercommunication, the output of two sets of diaphragm pumps is provided with the third connecting pipe, the sampling end of chemical analysis instrument and the intercommunication of third connecting pipe, and be provided with the second three-way valve on the third connecting pipe.

Preferably, the ultrafiltration membrane module comprises a liquid storage tank, two groups of flat ceramic membranes and an aerator, wherein the two groups of flat ceramic membranes are arranged in the liquid storage tank, and an aeration port of the aerator is arranged at the bottom in the liquid storage tank.

Preferably, a driving motor is fixedly mounted on the side wall of the liquid storage tank, and a brush is fixedly mounted at one end of an output shaft of the driving motor and penetrates through the side wall of the liquid storage tank.

Preferably, a water outlet overflow pipe is arranged on the side wall of the liquid storage tank and positioned on the side wall of the liquid storage tank, and the water outlet overflow pipe is communicated with the inside of the liquid storage tank.

Preferably, the ultrafiltration membrane component comprises two groups of tubular ceramic membranes, the water inlet ends of the two groups of tubular ceramic membranes are communicated with the output end of the sampling pump through circulation pipes, and return pipes are arranged on the two groups of tubular ceramic membranes and are communicated with the biochemical pool.

Preferably, the water outlet ends of the two groups of tubular ceramic membranes are respectively communicated with the water inlet ends of the two groups of membrane pumps through second connecting pipes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model filters the effluent of the biochemical pool through the flat ceramic membrane, uses the diaphragm pump to pump the negative pressure effluent, cooperates with the mechanical cleaning, the external aeration scouring, the internal high-pressure gas backflushing to reduce the membrane pollution, prolongs the service life of the ceramic membrane;

2. the utility model discloses a two sets of filter membranes used in turn can guarantee that equipment can replace on line, further prolongs ultrafiltration membrane module's life.

Drawings

FIG. 1 is a schematic structural view of the present invention using a tubular membrane as a filtration module;

FIG. 2 is a schematic structural view of the present invention using a flat ceramic membrane as a filtering component;

fig. 3 is a flow chart of the present invention.

In the figure: 1. a sampling pump; 2. an ultrafiltration membrane module; 3. a high pressure air pump; 4. a chemical analysis meter; 5. a return pipe; 6. a first connecting pipe; 7. a second connecting pipe; 8. a diaphragm pump; 9. a first three-way valve; 10. a third connecting pipe; 11. a second three-way valve; 12. a liquid storage tank; 13. a flat ceramic membrane; 14. an aerator; 15. a drive motor; 16. a brush; 17. an effluent overflow pipe; 18. a tubular ceramic membrane.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a technical scheme: referring to fig. 1 and 3, a chemical analysis instrument pretreatment device comprises a sampling pump 1, an ultrafiltration membrane assembly 2, a high-pressure air pump 3 and a chemical analysis instrument 4, wherein the sampling pump 1 is arranged in a biochemical pool, the output end of the sampling pump 1 is communicated with the input end of the ultrafiltration membrane assembly 2 through a first connecting pipe 6, and the output end of the ultrafiltration membrane assembly 2 is communicated with two groups of second connecting pipes 7, so that the sampling pump 1 can sample in the biochemical pool, and a next flow is carried out;

as shown in fig. 1, the ultrafiltration membrane module 2 comprises two groups of tubular ceramic membranes 18, the water inlet ends of the two groups of tubular ceramic membranes 18 are communicated with the output end of the sampling pump 1 through a circulating pipe, return pipes 5 are arranged on the two groups of tubular ceramic membranes 18, and the return pipes 5 are communicated with a biochemical pool;

as shown in fig. 2, the ultrafiltration membrane module 2 comprises a liquid storage tank 12, two groups of flat ceramic membranes 13 and an aerator 14, wherein the two groups of flat ceramic membranes 13 are arranged in the liquid storage tank 12, and an aeration port of the aerator 14 is arranged at the bottom in the liquid storage tank 12; membrane pollution can be reduced through aeration scouring, and the service life of the ceramic membrane is prolonged;

in conclusion, the two groups of ultrafiltration membrane assemblies 2 are alternately used, so that the equipment can be replaced on line, and the service life of the ultrafiltration membrane assemblies 2 is further prolonged;

as shown in fig. 1, two groups of diaphragm pumps 8 are respectively communicated with one end of each of two groups of second connecting pipes 7, first three-way valves 9 are respectively arranged on the two groups of second connecting pipes 7, the output end of the high-pressure air pump 3 is communicated with the two groups of first three-way valves 9, the diaphragm pumps 8 are used for pumping negative pressure water, and the diaphragm pumps are matched with mechanical cleaning, external aeration flushing and internal high-pressure gas backflushing to reduce membrane pollution and prolong the service life of the ceramic membrane;

as shown in fig. 2, a driving motor 15 is fixedly installed on the side wall of the liquid storage tank 12, one end of an output shaft of the driving motor 15 penetrates through the side wall of the liquid storage tank 12 and is fixedly provided with a brush 16, and the design can brush the surface of the flat ceramic membrane 13, so that membrane pollution is reduced, and the service life of the ceramic membrane is prolonged;

as shown in fig. 2, an outlet overflow pipe 17 is provided on the side wall of the sump 12 and on the side wall of the sump 12, and the outlet overflow pipe 17 communicates with the inside of the sump 12. The design can ensure that the sewage in the liquid storage tank 12 is not excessive;

as shown in fig. 1, the water outlet ends of the two sets of tubular ceramic membranes are respectively communicated with the water inlet ends of the two sets of membrane pumps 8 through second connecting pipes, the output ends of the two sets of membrane pumps 8 are provided with third connecting pipes 10, the sampling ends of the chemical analysis instruments 4 are communicated with the third connecting pipes 10, and the third connecting pipes 10 are provided with second three-way valves 11.

The working principle is as follows: designing two membranes to be alternately used, starting an aerator 14 to aerate the equipment, keeping sludge suspended, reducing deposition, performing gas backflushing on the filter membranes by using a high-pressure gas pump 3 for about 2min, starting a motor to perform mechanical cleaning on the surfaces of the membranes, switching on a water path after the backflushing is completed, pumping negative-pressure effluent by using a diaphragm pump 8 for a chemical analyzer 4 for about 10min, and then, standing the system; and (3) performing gas backflushing on the filter membrane by using the high-pressure gas pump 3 during the next detection for about 2min, simultaneously starting the motor to perform mechanical cleaning on the surface of the membrane, after the backflushing is completed, switching on the water path, pumping negative pressure water out by using the membrane pump 8 for the chemical analyzer 4 to use for about 10min, and then, performing system standby and alternately using the steps.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a chemical analysis instrument preprocessing device, includes sampling pump, milipore filter subassembly (2), high pressure air pump (3) and chemical analysis instrument (4), its characterized in that: sample pump (1) sets up in the biochemical pond, the output of sample pump (1) and the input of milipore filter subassembly (2) are through first connecting pipe (6) intercommunication, the output intercommunication of milipore filter subassembly (2) has two sets of second connecting pipes (7), and is two sets of the one end of second connecting pipe (7) communicates respectively has two sets of diaphragm pumps (8), and is two sets of all be provided with first three-way valve (9) on second connecting pipe (7), the output and two sets of high compression pump (3) first three-way valve (9) intercommunication, and are two sets of the output of diaphragm pump (8) is provided with third connecting pipe (10), the sampling end and the intercommunication of third connecting pipe (10) of chemical analysis instrument (4), and be provided with second three-way valve (11) on third connecting pipe (10).

2. A chemical analysis meter preprocessing device as recited in claim 1, wherein: the ultrafiltration membrane component (2) comprises a liquid storage tank (12), two groups of flat ceramic membranes (13) and an aerator (14), wherein the two groups of flat ceramic membranes (13) are arranged in the liquid storage tank (12), and an aeration port of the aerator (14) is arranged at the bottom in the liquid storage tank (12).

3. A chemical analysis meter preprocessing device as claimed in claim 2, wherein: and a driving motor (15) is fixedly mounted on the side wall of the liquid storage tank (12), and a brush (16) is fixedly mounted at one end of an output shaft of the driving motor (15) through the side wall of the liquid storage tank (12).

4. A chemical analysis meter preprocessing device as claimed in claim 2, wherein: and a water outlet overflow pipe (17) is arranged on the side wall of the liquid storage tank (12) and positioned on the side wall of the liquid storage tank (12), and the water outlet overflow pipe (17) is communicated with the inside of the liquid storage tank (12).

5. A chemical analysis meter preprocessing device as recited in claim 1, wherein: the ultrafiltration membrane component (2) comprises two groups of tubular ceramic membranes (18), the water inlet ends of the two groups of tubular ceramic membranes (18) are communicated with the output end of the sampling pump (1) through a first connecting pipe (6), return pipes (5) are arranged on the two groups of tubular ceramic membranes (18), and the return pipes (5) are communicated with the biochemical pool.

6. A chemical analysis meter preprocessing device as claimed in claim 5, wherein: the water outlet ends of the two groups of tubular ceramic membranes (18) are respectively communicated with the water inlet ends of the two groups of diaphragm pumps (8) through second connecting pipes (7).