CN212348350U - Membrane processing system - Google Patents
Membrane processing system Download PDFInfo
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- CN212348350U CN212348350U CN202020489359.0U CN202020489359U CN212348350U CN 212348350 U CN212348350 U CN 212348350U CN 202020489359 U CN202020489359 U CN 202020489359U CN 212348350 U CN212348350 U CN 212348350U
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- heat exchanger
- water
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- heater
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Abstract
The utility model relates to a membrane treatment system, which comprises a controller, a membrane treatment device and a membrane treatment device, wherein the controller is used for controlling the operation of a valve, a pump and a machine in the production process; the waste water storage device comprises a waste water storage tank, a heat exchanger a and a heat exchanger b, wherein the heat exchanger a and a water inlet of the heat exchanger b are connected in parallel, and a water outlet of the heat exchanger a and a water outlet of the heat exchanger b are connected in parallel through a conduit to quickly heat-exchange and heat water and then collect the water; a water inlet of the heater is connected with the water outlets of the heat exchanger a and the heat exchanger b through a conduit; a conventional membrane treatment system; a heat exchanger a recovery discharge valve is arranged between the recovery tank and the other water outlet of the heat exchanger a. The system controls the water inlet temperature in a reasonable range (30-35 ℃), increases the actual flux of the membrane, reduces the using amount of the membrane, reduces 1/3 investment, prolongs the membrane replacement period, reduces the membrane replacement cost, realizes heat recovery and reduces energy consumption through heat exchange between the outlet water and the inlet water.
Description
Technical Field
The utility model relates to a membrane processing technology field, more specifically relate to a membrane processing system.
Background
Along with the progress of human society, urbanization becomes more and more obvious, industrial facilities become larger, the expansion of the factors can lead to the generation of a large amount of wastewater, and the wastewater treatment generally adopts a membrane treatment process. Research shows that the membrane flux changes greatly with water temperature, and the design is generally low, so that the design scale is large and the investment is overhigh. In winter, the flux is reduced, and the membrane needs to be replaced in advance, so that the waste of membrane resources is caused. Taking the Dow membrane as an example, the flux of the membrane is greatly different at different water temperatures, namely ultrafiltration and reverse osmosis, and the flux difference between 10 ℃ and 35 ℃ is nearly 1 time. In southern areas, the temperature difference of water in summer and winter can reach the range completely, the design is calculated according to the most adverse conditions, the use amount of the membrane is greatly increased, and the investment needs to be increased by about 1/3. When the membrane flux is reduced in winter and the water production requirement cannot be met, the membrane has to be replaced, and the membrane can completely reach or even exceed the normal flux under the condition of water temperature in summer, and the membrane replacement actually causes resource waste and increases the operation cost. Therefore, how to solve the problem that the membrane flux is greatly changed in winter and summer is a major problem at present.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a membrane processing system, will intake the temperature control at comparatively reasonable 30-35 ℃ scope, increase the actual flux of membrane, reduce the quantity of membrane.
In order to solve the above problems, the utility model adopts the following technical proposal.
A membrane treatment system comprising a controller for controlling the operation of valves, pumps and machinery in a production process;
the waste water heat exchanger comprises a waste water reservoir, a heat exchanger a and a heat exchanger b, wherein a water inlet of the heat exchanger a and a water inlet of the heat exchanger b are arranged in parallel through a guide pipe, a waste water discharge valve and a waste water lifting pump are arranged between a parallel connection port and the waste water reservoir and respectively inject waste water into the heat exchanger a and the heat exchanger b, water outlets of the heat exchanger a and the heat exchanger b are arranged in parallel through guide pipes and collect water after rapid heat exchange and heating, a heat exchange discharge valve a is arranged on the guide pipe of the discharge port of the heat exchanger a, and a heat exchange discharge valve b is;
the water inlet of the heater is connected with the water outlets of the heat exchanger a and the heat exchanger b through a conduit, a temperature sensor, a temperature controller and a temperature indicator are arranged in the heater, the temperature sensor is used for detecting the temperature of water in the heater, the temperature controller is used for controlling the heating temperature running value of the heater, the temperature sensor is electrically connected with the temperature controller, the temperature controller is electrically connected with the controller, and the heater is electrically connected with the controller;
the conventional membrane treatment system is connected with the heater and is used for carrying out one or any combination of pretreatment, ultrafiltration, nanofiltration, reverse osmosis, DTRO and STRO treatment on the water with the increased temperature; a membrane system clear liquid discharge pump is arranged between the clear liquid water outlet of the conventional membrane treatment system and the other water inlet of the heat exchanger a, and a membrane system clear liquid discharge pump is arranged between the concentrated liquid water outlet of the conventional membrane treatment system and the other water inlet of the heat exchanger b;
a heat exchanger a recovery discharge valve is arranged between the recovery tank and the other water outlet of the heat exchanger a;
and a recovery discharge valve of the heat exchanger a is arranged between the concentrated solution post-treatment system and the other water discharge port of the heat exchanger b.
Further, the quantity of heat exchanger a and heat exchanger b sets up according to the pipeline quantity that membrane system goes out water, and it is one of riser heat exchanger, plate heat exchanger, and the heat transfer of a plurality of heat exchangers multithread simultaneously can promote efficiency, and multiple heat exchanger can promote the variety of system, and the purchase is convenient.
Furthermore, the heating mode of the heater is one of steam heating, electric heating and water heating, and the heater can be manufactured conveniently and can effectively utilize recovered heat energy in various heating modes.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a waste water divides two tunnel to heat exchanger a, heat exchanger b through promoting with the pump, and the heat exchange heats the back, continues to heat to 30-35 ℃ through the heater, gets into conventional membrane processing system and handles. The clear liquid of the membrane system treated by the membrane system enters a heat exchanger a for heat recovery and then is discharged or recycled; and (4) recovering the heat of the membrane system concentrated solution by a heat exchanger b and then entering a subsequent treatment process. The water temperature at the heater is automatically controlled by an instrument and an automatic control system to ensure that the membrane operates at a safe temperature. The system controls the water inlet temperature in a reasonable range (30-35 ℃), increases the actual flux of the membrane, reduces the using amount of the membrane, reduces 1/3 investment, prolongs the membrane replacement period, reduces the membrane replacement cost, realizes heat recovery and reduces energy consumption through heat exchange between the outlet water and the inlet water.
Drawings
Fig. 1 is an overall structural view of a membrane treatment system according to an embodiment of the present invention;
fig. 2 is an equipment control diagram of a membrane processing system according to an embodiment of the present invention;
fig. 3 is a process flow diagram of a membrane treatment system according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-3, a membrane treatment system includes a controller for controlling the operation of valves, pumps and machines in the production process, the controller being a DCS controller having an input keyboard and a display screen;
the waste water storage tank 4, the heat exchanger a13 and the heat exchanger b6 are arranged in parallel through a guide pipe between a heat exchanger a13 and a water inlet of a heat exchanger b6, the guide pipe is made of stainless steel to prevent corrosive substances in the waste water from corroding, the water inlet is an inlet end of a cold fluid channel of the heat exchanger and is used for injecting cold waste water with lower temperature into the cold fluid channel of the heat exchanger a13 and the heat exchanger b6 so as to exchange heat to a cold fluid when hot fluid flows through the hot fluid in the hot fluid channel, a stainless steel guide pipe is connected with a parallel connection interface, the tail end of the stainless steel guide pipe extends into the bottommost part of the waste water storage tank 4, the tail end of the bottom of the stainless steel guide pipe is provided with an anti-blocking filter screen, a waste water discharge valve 3 (model X43F-16Ni-DN80) and a waste water lift pump 2 (model MHT100-65-250) are arranged outside the waste water storage tank 4 and are used for lifting, the water outlets of the heat exchanger a13 and the heat exchanger b6 are arranged in parallel through a stainless steel guide pipe, the parallel guide pipe is connected with the outlet ends of cold fluid channels of the heat exchanger a13 and the heat exchanger b6, a heat exchanger a water discharge valve 16 is arranged on the guide pipe of the outlet of the heat exchanger a13, a heat exchanger b water discharge valve 17 is arranged on the guide pipe of the outlet of the heat exchanger b6, and the parallel ports can collect water after rapid heat exchange heating for the same heating of the heater 7, so that the temperature is controlled to be 30-35 ℃ in a balanced mode;
a heater 7, a water inlet of the heater 7 is connected with water outlets of a heat exchanger a13 and a heat exchanger b6 through stainless steel guide pipes, a temperature sensor 8 (model WZP230F), a temperature controller (model BPK104-PT100) and a temperature indicator 9 are arranged in the heater 7, wastewater enters the heater 7 for heating after heat exchange through the heat exchanger a13 and the heat exchanger b6, the temperature sensor 8 can detect whether the value of the water temperature in the heater 7 is in the range of 30-35 ℃ in real time and convert the data into electric signals to be transmitted to a controller for processing in time, if the temperature is not in the required range of 30-35 ℃, the controller transmits signals to the temperature controller, the temperature controller controls to start a heating component in the heater 7 to heat the water continuously until the temperature reaches 30-35 ℃, the temperature sensor 8 is electrically connected with the temperature controller through a lead, and the temperature controller is electrically connected with the controller, the heater 7 is electrically connected with the controller through a lead;
the conventional membrane treatment system 10 is a whole conventional membrane treatment process system, and comprises the steps of one or any combination of pretreatment, ultrafiltration, nanofiltration, reverse osmosis, DTRO and STRO treatment, wherein the water discharge port end of a heater 7 is connected with a device used in the first step of the conventional membrane treatment system 10 through a guide pipe wrapped by an asbestos pad, water heated to 30-35 ℃ is discharged into the guide pipe to start all conventional membrane treatment processes, a guide pipe is arranged between a water discharge port for discharging clear liquid of equipment used in the last step of the conventional membrane treatment system 10 and the inlet end of a hot fluid channel of a heat exchanger a13, the guide pipe is wrapped by the asbestos pad, a membrane system clear liquid discharge pump is arranged on the guide pipe to increase water flow power and accelerate discharge, and the water with heat after membrane treatment enters a hot fluid channel in the heat exchanger a13 to transmit the heat into cold water which water needs to be heated, therefore, heat is recycled, a guide pipe is arranged between a water outlet of equipment used for discharging concentrated solution in the last process of the conventional membrane treatment system 10 and a water inlet of a hot fluid channel of the heat exchanger b6, an asbestos pad is wrapped on the guide pipe, a membrane system concentrated solution discharge pump is arranged on the guide pipe to increase water flow power and accelerate discharge, and water with heat after membrane treatment enters the hot fluid channel in the heat exchanger b6 to transmit the heat to cold flowing water which is entering water and needs to be heated, so that the heat of the concentrated solution which needs to be subsequently and continuously treated is recycled;
a conduit is arranged between the recovery tank 1 and a hot fluid channel water outlet of the heat exchanger a13, and a heat exchanger a recovery discharge valve 14 is arranged on the conduit;
the concentrated solution post-treatment system 5 is a whole set of system equipment comprising a plurality of complex treatment processes, and a conduit is arranged between equipment used in a first process of the concentrated solution post-treatment system 5 and a hot fluid water outlet of the heat exchanger b6, and is provided with a heat exchanger b recovery discharge valve 15.
In one embodiment, the number of the heat exchangers a13 and b6 is set according to the number of pipelines for water outlet of the membrane system, the heat exchangers are vertical tube type heat exchangers or plate type heat exchangers, the efficiency can be improved by the simultaneous multi-flow heat exchange of a plurality of heat exchangers, the diversity of the system can be improved by the various heat exchangers, and the procurement is convenient.
In one embodiment, the heater 7 is heated by one of steam, electricity and water, and the multiple heating methods can facilitate manufacture and make effective use of the recovered heat energy.
Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (3)
1. A membrane treatment system comprising a controller for controlling the operation of valves, pumps and machinery in a production process;
the waste water heat exchanger comprises a waste water reservoir, a heat exchanger a and a heat exchanger b, wherein a water inlet of the heat exchanger a and a water inlet of the heat exchanger b are arranged in parallel through a guide pipe, a waste water discharge valve and a waste water lifting pump are arranged between a parallel connection port and the waste water reservoir and respectively inject waste water into the heat exchanger a and the heat exchanger b, water outlets of the heat exchanger a and the heat exchanger b are arranged in parallel through guide pipes and collect water after rapid heat exchange and heating, a heat exchange discharge valve a is arranged on the guide pipe of the discharge port of the heat exchanger a, and a heat exchange discharge valve b is;
the water inlet of the heater is connected with the water outlets of the heat exchanger a and the heat exchanger b through a conduit, a temperature sensor, a temperature controller and a temperature indicator are arranged in the heater, the temperature sensor is used for detecting the temperature of water in the heater, the temperature controller is used for controlling the heating temperature running value of the heater, the temperature sensor is electrically connected with the temperature controller, the temperature controller is electrically connected with the controller, and the heater is electrically connected with the controller;
the conventional membrane treatment system is connected with the heater and is used for carrying out one or any combination of pretreatment, ultrafiltration, nanofiltration, reverse osmosis, DTRO and STRO treatment on the water with the increased temperature; a membrane system clear liquid discharge pump is arranged between the clear liquid water outlet of the conventional membrane treatment system and the other water inlet of the heat exchanger a, and a membrane system clear liquid discharge pump is arranged between the concentrated liquid water outlet of the conventional membrane treatment system and the other water inlet of the heat exchanger b;
a heat exchanger a recovery discharge valve is arranged between the recovery tank and the other water outlet of the heat exchanger a;
and a recovery discharge valve of the heat exchanger a is arranged between the concentrated solution post-treatment system and the other water discharge port of the heat exchanger b.
2. A film treatment system as recited in claim 1, wherein: the number of the heat exchangers a and the number of the heat exchangers b are set according to the number of pipelines for water outlet of the membrane system, and the heat exchangers are vertical tube type heat exchangers or plate type heat exchangers.
3. A film treatment system as recited in claim 1, wherein: the heating mode of the heater is one of steam heating, electric heating and water heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489359.0U CN212348350U (en) | 2020-04-07 | 2020-04-07 | Membrane processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489359.0U CN212348350U (en) | 2020-04-07 | 2020-04-07 | Membrane processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212348350U true CN212348350U (en) | 2021-01-15 |
Family
ID=74139881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020489359.0U Expired - Fee Related CN212348350U (en) | 2020-04-07 | 2020-04-07 | Membrane processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212348350U (en) |
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2020
- 2020-04-07 CN CN202020489359.0U patent/CN212348350U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |