CN214990855U

CN214990855U - Boiler make-up water supply device based on ceramic membrane treatment

Info

Publication number: CN214990855U
Application number: CN202120977732.1U
Authority: CN
Inventors: 刘建云; 孙百爽; 赵艳; 房庆; 杨婷
Original assignee: Shandong Taihe Environmental Polytron Technologies Inc
Current assignee: Shandong Taihe Environmental Polytron Technologies Inc
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-03
Anticipated expiration: 2031-05-08

Abstract

The utility model relates to a water treatment facilities especially relates to a boiler make-up water installation based on ceramic membrane is handled. The utility model discloses reducible area shortens process flow, extension equipment life. Boiler make-up water installation based on ceramic membrane is handled, including the reaction sedimentation tank, the reaction sedimentation tank connects gradually prefilter, ceramic membrane device, ceramic membrane product water tank and second grade reverse osmosis unit through first booster pump, second grade reverse osmosis unit is including the high-pressure pump, reverse osmosis equipment and the product water tank that connect gradually, second grade reverse osmosis unit's product water tank connects gradually the EDI device through the second booster pump and removes the salt water tank.

Description

Boiler make-up water supply device based on ceramic membrane treatment

Technical Field

The utility model relates to a water treatment facilities especially relates to a boiler make-up water installation based on ceramic membrane is handled.

Background

Boiler make-up water is surface water groundwater usually, coastal and lack the area of fresh water still often use the sea water as the make-up water source, electric power boiler make-up water if not handling, the make-up water contains a large amount of impurity, especially hard water, contain a large amount of calcium in the hard water, magnesium ion, calcium, magnesium ion can cause very big harm to the boiler, the boiler is after using hard water for a long time, the inside incrustation scale that can produce of boiler, influence the performance of boiler, lead to being heated inhomogeneous of boiler, serious probably corrodes the metal, it is very dangerous, so most power plants can use ultrapure water equipment to purify quality of water, make quality of water can accord with the operation standard.

In the prior art, because the quality of the yellow river water/Yangtze river water is relatively poor, a treatment process combining a multi-media filter and ultrafiltration (organic MBR) is mainly adopted. In the mode, after surface water is filtered by the multistage pretreatment layer, the water quality of produced water meets the water inlet requirement of reverse osmosis.

However, the ultra-long treatment process not only increases the occupied area, but also increases the operating cost of the equipment, and adopts an ultrafiltration process, the ultrafiltration membrane component is an organic membrane component, so that the membrane component is easy to damage or dirty and blocked, and is not easy to recover after dirty and blocked, a batch of membrane components need to be replaced in basically 3 years, and the operation effect is unstable. The treatment burden is increased for the subsequent reverse osmosis device, and the method becomes a great difficulty for treating surface water at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming above-mentioned defect, provides a boiler make-up water installation based on ceramic membrane is handled, reduces area, shortens process flow, extension equipment life.

Boiler make-up water installation based on ceramic membrane is handled, including the reaction sedimentation tank, the reaction sedimentation tank connects gradually prefilter, ceramic membrane device, ceramic membrane product water tank and second grade reverse osmosis unit through first booster pump, second grade reverse osmosis unit is including the high-pressure pump, reverse osmosis equipment and the product water tank that connect gradually, second grade reverse osmosis unit's product water tank connects gradually the EDI device through the second booster pump and removes the salt water tank.

Preferably, the ceramic membrane device is connected with a sewage tank, a submersible pump and a plate-and-frame filter press in sequence through pipelines.

Preferably, the reverse osmosis equipment of the first stage reverse osmosis device is connected with the reverse osmosis concentrated water tank through a pipeline.

Preferably, the reverse osmosis equipment of the second-stage reverse osmosis device is connected with the ceramic membrane water production pool through a pipeline.

Preferably, the EDI device is connected with the ceramic membrane water production tank through a pipeline.

The use principle and the process are as follows:

conveying the water in the reaction sedimentation tank to a pre-filter through a first booster pump, then filtering through a ceramic membrane device, connecting a concentrated water output end of the ceramic membrane device to a sewage tank, lifting through a submersible sewage pump, carrying out solid-liquid separation on the water in the reaction sedimentation tank by a plate-and-frame filter press, returning clear liquid to the reaction sedimentation tank, and transporting solid mud cakes outside;

the method comprises the following steps that a water output source at a water production end of a ceramic membrane device is used as a boiler feed water pretreatment water source and enters a two-stage reverse osmosis device, specifically, a water body entering a ceramic membrane water production tank enters a reverse osmosis device through a high-pressure pump in a first-stage reverse osmosis device, concentrated water at a concentrated water end of the reverse osmosis device enters a reverse osmosis concentrated water tank, and a water production end of the reverse osmosis device enters a water production tank; in the second stage reverse osmosis device, a high-pressure pump pumps the water body in the upper stage water production tank into the reverse osmosis device, the concentrated water at the concentrated water end of the reverse osmosis device enters the ceramic membrane water production tank, the concentrated water at the concentrated water end of the reverse osmosis device enters the water production tank, the concentrated water enters the EDI device after being pressurized by the second booster pump, the concentrated water at the concentrated water end of the EDI device enters the ceramic membrane water production tank, and the concentrated water at the water production end of the EDI device enters demineralized water to be temporarily stored for later use.

The utility model has the advantages that: the ceramic membrane device is matched with the two-stage reverse osmosis device to replace the original multi-medium filter matched with an ultrafiltration (organic MBR) treatment process, so that the occupied area is reduced, the process flow is shortened, and the service life of equipment is prolonged; through setting up the effluent water sump cooperation pressure filter and filtering, make the clear solution backward flow, mud cake outward transport guarantees the effective separation of system's solid pollutant, has reduced the consumption of reaction sedimentation tank medicament, and the at utmost improves the water utilization ratio of system, makes current sewage obtain maximum retrieval and utilization.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

in the figure: 1. a reaction sedimentation tank; 2. a first booster pump; 3. a pre-filter; 4. a ceramic membrane device; 5. a ceramic membrane water producing tank; 6. a high pressure pump; 7. reverse osmosis equipment; 8. a water production tank; 9. a second booster pump; 10. an EDI device; 11. a desalting water tank; 12. a sewage tank; 13. a submersible pump; 14. a plate-and-frame filter press; 15. a reverse osmosis concentrated water tank.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in figure 1, boiler make-up water installation based on ceramic membrane is handled includes reaction sedimentation tank 1, reaction sedimentation tank 1 connects gradually leading filter 3, ceramic membrane device 4, ceramic membrane product pond 5 and two-stage reverse osmosis unit through first booster pump 2, two-stage reverse osmosis unit is including the high-pressure pump 6, reverse osmosis equipment 7 and the product water tank 8 that connect gradually, and EDI device 10 and demineralized water tank 11 are connected gradually through second booster pump 9 to second stage reverse osmosis unit's product water tank 8. The ceramic membrane device 4 is sequentially connected with a sewage tank 12, a submersible pump 13 and a plate-and-frame filter press 14 through pipelines. The reverse osmosis equipment 7 of the first stage reverse osmosis device is connected with a reverse osmosis concentrated water tank 15 through a pipeline. And a reverse osmosis device 7 of the second-stage reverse osmosis device is connected with the ceramic membrane water production tank 5 through a pipeline. The EDI device 10 is connected with the ceramic membrane water production tank 5 through a pipeline.

Taking yellow water as an example, the yellow river water (with the turbidity of 6 degrees and the suspended matters of 38.6mg/l) which is added with drugs and filtered by a reaction sedimentation tank 1 is conveyed to a pre-filter 3 by a first booster pump 2 for pre-filtering, then enters a 0.1-micron ceramic membrane device 4 for filtering, the ceramic membrane produced water filtered by the ceramic membrane device 4 has the water production turbidity of less than or equal to 0.5NTU and the SDI of less than or equal to 3, the effluent quality is superior to the reverse osmosis water inlet requirement, and finally reaches the standard of boiler water after passing through a two-stage reverse osmosis device and an EDI device.

The utility model discloses a use as follows: conveying the water in the reaction sedimentation tank to a pre-filter through a first booster pump, then filtering through a ceramic membrane device, connecting a concentrated water output end of the ceramic membrane device to a sewage tank, lifting through a submersible sewage pump, carrying out solid-liquid separation on the water in the reaction sedimentation tank by a plate-and-frame filter press, returning clear liquid to the reaction sedimentation tank, and transporting solid mud cakes outside;

the method comprises the following steps that a water source output by a water production end of a ceramic membrane device is used as a boiler feed water pretreatment water source and enters a two-stage reverse osmosis device, specifically, a water body entering a ceramic membrane water production tank is pumped into the reverse osmosis device through a high-pressure pump in a first-stage reverse osmosis device, concentrated water at a concentrated water end of the reverse osmosis device enters a reverse osmosis concentrated water tank, and a water production end of the reverse osmosis device enters a water production tank; in the second stage reverse osmosis device, a high-pressure pump pumps the water body in the upper stage water production tank into the reverse osmosis device, the concentrated water at the concentrated water end of the reverse osmosis device enters the ceramic membrane water production tank, the concentrated water at the concentrated water end of the reverse osmosis device enters the water production tank, the concentrated water enters the EDI device after being pressurized by the second booster pump, the concentrated water at the concentrated water end of the EDI device enters the ceramic membrane water production tank, and the concentrated water at the water production end of the EDI device enters demineralized water to be temporarily stored for later use.

Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.

Claims

1. The utility model provides a boiler makeup water installation based on ceramic membrane is handled, includes reaction sedimentation tank (1), its characterized in that: reaction sedimentation tank (1) connects gradually leading filter (3), ceramic membrane device (4), ceramic membrane product water tank (5) and two-stage reverse osmosis unit through first booster pump (2), two-stage reverse osmosis unit is including high-pressure pump (6), reverse osmosis equipment (7) and product water tank (8) that connect gradually, and EDI device (10) and demineralized water tank (11) are connected gradually through second booster pump (9) in second stage reverse osmosis unit's product water tank (8).

2. The ceramic membrane treatment-based boiler makeup water supply device according to claim 1, characterized in that: the ceramic membrane device (4) is sequentially connected with a sewage tank (12), a submersible pump (13) and a plate-and-frame filter press (14) through pipelines.

3. The ceramic membrane treatment-based boiler makeup water supply device according to claim 1, characterized in that: the reverse osmosis equipment (7) of the first-stage reverse osmosis device is connected with a reverse osmosis concentrated water tank (15) through a pipeline.

4. The ceramic membrane treatment-based boiler makeup water supply device according to claim 1, characterized in that: the reverse osmosis equipment (7) of the second-stage reverse osmosis device is connected with the ceramic membrane water producing tank (5) through a pipeline.

5. The ceramic membrane treatment-based boiler makeup water supply device according to claim 1, characterized in that: the EDI device (10) is connected with the ceramic membrane water production tank (5) through a pipeline.