CN104671495B - Water circulation utilization system in PTA production process - Google Patents
Water circulation utilization system in PTA production process Download PDFInfo
- Publication number
- CN104671495B CN104671495B CN201310641304.1A CN201310641304A CN104671495B CN 104671495 B CN104671495 B CN 104671495B CN 201310641304 A CN201310641304 A CN 201310641304A CN 104671495 B CN104671495 B CN 104671495B
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- water
- lime set
- water tank
- production process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses the water circulation utilization system in a kind of PTA production process, this technological process is brief, easily controllable, process powerful, there is collection, process, storage and the multi-functional recycled, relate to water circulation and each step utilized, steam condensate heat exchanger rear arranges accurate filter, the described outfan of steam condensate heat exchanger is connected with the water inlet of accurate filter, the rear of accurate filter is provided with plate type heat exchanger, the outlet of described accurate filter is connected with the thermal fluid inlet end of plate type heat exchanger, the water outlet end of plate type heat exchanger is connected with the entrance in reverse osmosis produced pond, the outlet in reverse osmosis produced pond is connected with the water inlet of mixed-bed system, the outlet of mixed-bed system is connected with tank entry, the application present invention, solves the problem that a large amount of lime sets in PTA production process are directly discharged and the Water Energy that causes is wasted, improves the measurable and controllable property of system simultaneously.
Description
Technical field
The present invention relates to the water treatment system of chemical industry, particularly relate to a kind of for the water circulation utilization system in PTA production process.
Background technology
PTA is the primary raw material of polyester product, and along with the fast development that chemical industry produces, the production technology of PTA is also improved therewith. Existing production PTA technique mostly adopts low temperature or high-temperature oxidation, the plurality of advantages such as have short flow, production technology is easily controlled, cost is low. Produce in PTA process, owing to water and steam consumption are bigger, a large amount of lime set is had directly to discharge in process of production, not only pollute environment, waste substantial amounts of water resource, too increase production cost, hence set up the water circulation system in a set of perfect PTA production process, collect water from steam to process, store until recycling and all relating to, be just particularly important.
Steam condensate heat exchanger, it it is assembly comparatively important during water resource reclaims, chemicals dosing plant is located at lime set arm place by existing steam condensate heat exchanger, respectively to each lime set arm dosing, chemicals dosing plant is provided with multiple arm, each arm is provided with control valve, it not only controls complexity, and owing to the position of heat exchanger is different, its dose flows to difference, it is possible to cause the distance remote heat exchanger of drug feeding device cannot the problem of dosing, simultaneously, chemicals dosing plant could not adopt electromagnetic valve to automatically control, and automaticity is relatively low.
Water is after remove impurity processes with heat exchange, also need to setting up a buffering between PTA process units and water treatment system, then the water after processing is transmitted back to process units participation production, industrial usual employing storing water in water tank reaches this purpose, but, in prior art, the automaticity of water tank is low, poor controllability, some inconvenience are brought for production and storage, there is provided a kind of liquid level can survey with temperature, the water tank that output is controlled, also just it is particularly important.
Summary of the invention
The present invention is the defect in order to make up above-mentioned technology, devise the water circulation utilization system in a kind of PTA production process, this technological process is brief, easily controllable, process powerful, there is the multi-functional of collection, process, storage and recycling, relate to each step of water cycle process, apply the present invention, solve a large amount of lime sets in PTA production process directly to discharge and the problem of Water Energy waste that causes, also improve the surveying of system, controllability simultaneously.
To achieve these goals, the technical scheme is that
Water circulation utilization system in a kind of PTA production process, including steam condensate heat exchanger, accurate filter, plate type heat exchanger, reverse osmosis produced pond, mixed-bed system, water tank and connection pipeline;
Steam condensate heat exchanger, including condenser, lime set supervisor, pump, chemicals dosing plant, control valve, lime set arm and heat exchanger;
One end of described lime set supervisor is provided with steam inlet, from steam inlet place, lime set supervisor be connected with condenser and pump successively, the lime set arm that the lime set supervisor connected with pumping water end (W.E.) is parallel with one group again connects, described lime set arm is connected to heat exchanger, and the terminal of lime set arm is interconnected, and pool a connection pipeline;
Described lime set arm one group parallel includes at least two lime set arms;
Described with pump lime set supervisor that water end (W.E.) is connected and be connected with chemicals dosing plant further through being connected pipeline;
Lime set supervisor between described pump and chemicals dosing plant is also equipped with flow detector;
The junction that described chemicals dosing plant and lime set are responsible for controls valve equipped with one;
Flow detector, controller and control valve constitute interpolation pharmaceutical quantities open-loop control system, the outfan of flow detector is connected with the input of controller, flow detector is by the flow value input of detection to controller, controller obtains output by built-in algorithms computing, the outfan of controller is connected with the input controlling valve, make controller output can the aperture of adjusting control valve in real time, in order to control to add during chemicals dosing plant is responsible for the dosage of medicament to lime set;
The rear of steam condensate heat exchanger arranges accurate filter, the described outfan of steam condensate heat exchanger is connected with the water inlet of accurate filter, the rear of accurate filter is provided with plate type heat exchanger, the outlet of described accurate filter is connected with the thermal fluid inlet end of plate type heat exchanger, the water outlet end of plate type heat exchanger is connected with the entrance in reverse osmosis produced pond, the outlet in reverse osmosis produced pond is connected with the water inlet of mixed-bed system, and the outlet of mixed-bed system is connected with the entrance of water tank;
Described water tank is the water tank with cooling system, it includes the hollow interlayer between internal layer water tank, outer layer water tank and internal layer water tank and outer layer water tank, the inside of described internal layer water tank is equipped with liquid level sensor and temperature sensor, the bottom of described outer layer water tank is provided with cold water inlet, its top is provided with cooling water outlet, cold water inlet communicates with described hollow interlayer with cooling water outlet, and water tank directly takes back PTA process units by pipeline;
Further, described medicament is oxygen scavenger, pH value regulator and clear pot agent;
Preferably, PH regulator is neutralizing amine;
Further, described pump is centrifugal pump;
Further, described accurate filter is more medium filter, and filtrate is quartz sand, anthracite and manganese sand;
Further, the rear of described accurate filter is provided with high-pressure pump, and described mixed-bed system is with mixed bed force (forcing) pump;
Further, the cooling water outlet of described water tank is connected with cold water source by pipeline;
Further, the connection pipeline of described water tank and PTA process units is provided with valve;
Preferably, described valve is electromagnetic valve.
The beneficial effects of the present invention is: the present invention devises and discharges the filtration of steam in a kind of PTA production process, desalination processes and the system recycled, system flow is brief, easily controllable, there is the multi-functional of collection, process, storage and recycling, relate to water circulation and each step utilized, the application present invention, solve a large amount of lime sets in PTA production process directly discharge and cause Water Energy waste problem, improve the measurable and controllable property of system simultaneously.Steam and aqueous water are changed, are recycled by the present invention mutually, have both saved water resource, have also reduced the production cost of factory.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention;
Fig. 2 is the structural representation of steam condensate heat exchanger.
In figure: 10, steam condensate heat exchanger, 11, condenser, 12, lime set supervisor, 13, pump, 14, chemicals dosing plant, 15, valve is controlled, 16, lime set arm, 17, heat exchanger, 20, accurate filter, 30, plate type heat exchanger, 40, reverse osmosis produced pond, 50, mixed-bed system, 60, water tank.
Detailed description of the invention
In conjunction with the drawings and the specific embodiments, native system is further illustrated:
The water circulation utilization system in a kind of PTA production process as shown in Figure 1, including steam condensate heat exchanger 10, accurate filter 20, plate type heat exchanger 30, reverse osmosis produced pond 40, mixed-bed system 50, water tank 60 and connection pipeline;
Steam condensate heat exchanger 10 as shown in Figure 2, including condenser 11, lime set supervisor 12, pump 13, chemicals dosing plant 14, controls valve 15, lime set arm 16 and heat exchanger 17;
One end of described lime set supervisor 12 is provided with steam inlet, from steam inlet place, lime set supervisor 12 is connected with condenser 11 and pump 13 successively, the lime set arm 16 that the lime set supervisor 12 connected with pump 13 water side is parallel with one group again connects, described lime set arm 16 is connected to heat exchanger 17, and the terminal of lime set arm 16 is interconnected, and pool a connection pipeline;
Described lime set arm 16 one group parallel is including at least two lime set arms;
The described lime set supervisor 12 being connected with pump 13 water side is connected with chemicals dosing plant 14 further through being connected pipeline;
Lime set supervisor 12 between described pump 13 and chemicals dosing plant 14 is also equipped with flow detector;
Described chemicals dosing plant 14 and lime set are responsible for the junction of 12 and are controlled valve 15 equipped with one;
Flow detector, controller and control valve 15 constitute interpolation pharmaceutical quantities open-loop control system, the outfan of flow detector is connected with the input of controller, flow detector is by the flow value input of detection to controller, controller obtains output by built-in algorithms computing, the outfan of controller is connected with the input controlling valve 15, make controller output can the aperture of adjusting control valve 15 in real time, the dosage adding medicament in 12 in order to control chemicals dosing plant 14 to be responsible for lime set;
The rear of steam condensate heat exchanger 10 arranges accurate filter 20, the outfan of described steam condensate heat exchanger 10 is connected with the water inlet of accurate filter 20, the rear of accurate filter 20 is provided with plate type heat exchanger 30, the outlet of described accurate filter 20 is connected with the thermal fluid inlet end of plate type heat exchanger 30, the water outlet end of plate type heat exchanger 30 is connected with the entrance in reverse osmosis produced pond 40, the outlet in reverse osmosis produced pond 40 is connected with the water inlet of mixed-bed system 50, and the outlet of mixed-bed system 50 is connected with the entrance of water tank 60;
Described water tank 60 is the water tank with cooling system, it includes the hollow interlayer between internal layer water tank, outer layer water tank and internal layer water tank and outer layer water tank, the inside of described internal layer water tank is equipped with liquid level sensor and temperature sensor, the bottom of described outer layer water tank is provided with cold water inlet, its top is provided with cooling water outlet, cold water inlet communicates with described hollow interlayer with cooling water outlet, and water tank 60 directly takes back PTA process units by pipeline;
Further, described medicament is oxygen scavenger, pH value regulator and clear pot agent;
Preferably, PH regulator is neutralizing amine;
Further, described pump 13 is centrifugal pump;
Further, described accurate filter 20 is more medium filter, and filtrate is quartz sand, anthracite and manganese sand;
Further, the rear of described accurate filter 20 is provided with high-pressure pump, and described mixed-bed system 50 is with mixed bed force (forcing) pump;
Further, the cooling water outlet of described water tank 60 is connected with cold water source by pipeline;
Further, described water tank 60 and the connection pipeline of PTA process units are provided with valve;
Preferably, described valve is electromagnetic valve.
A kind of water circulation utilization system in PTA production process, its technique is:
The high-temperature steam produced in a, PTA production process, by connecting pipeline, enters steam condensate heat exchanger 10, is condensed into aqueous water through the condensed high-temperature steam of steam condensate heat exchanger 10;
B, aqueous water flow out from the outfan of steam condensate heat exchanger 10, by connecting pipeline, enter accurate filter 20, and aqueous water is the particle in elimination water and organic colloid in accurate filter 20, flows out from the outfan of accurate filter 20;
Water after c, filtration, by connecting pipeline, enters plate type heat exchanger 30 and carries out secondary heat exchange process, and the condensed water after further heat exchange flows out from the outfan of plate type heat exchanger 30, by connecting pipeline, enters reverse osmosis produced pond 40;
After d, condensed water remove the salt ion in water in reverse osmosis produced pond 40, by connecting pipeline, enter mixed-bed system 50;
E, water carry out ion-exchange treatment in mixed-bed system 50, slough the salt in water, and the pure water after desalination flows out from the outfan of mixed-bed system 50, by connecting pipeline, enter water tank 60 and store;
Storage water in f, water tank 60 directly supplies water for PTA process units, the outfan of water tank 60 is connected with the process units of PTA by connecting pipeline, water in water tank 60 flows out from the outfan of water tank 60, flows into the process units of PTA by connecting pipeline, again for the production and processing of PTA.
Claims (9)
1. the water circulation utilization system in a PTA production process, it is characterised in that: include steam condensate heat exchanger (10), accurate filter (20), plate type heat exchanger (30), reverse osmosis produced pond (40), mixed-bed system (50), water tank (60) and connect pipeline;
Described steam condensate heat exchanger (10), including condenser (11), lime set supervisor (12), pump (13), chemicals dosing plant (14), controls valve (15), lime set arm (16) and heat exchanger (17);
One end of described lime set supervisor (12) is provided with steam inlet, from steam inlet place, lime set supervisor (12) is connected with condenser (11) and pump (13) successively, the lime set arm (16) that the lime set being connected with pump (13) water side is responsible for (12) parallel with one group again connects, described lime set arm (16) is connected to heat exchanger (17), and the terminal of lime set arm (16) is interconnected, and pool a connection pipeline;
Described lime set arm (16) a group parallel is including at least two lime set arms;
Described lime set supervisor (12) being connected with pump (13) water side is connected with chemicals dosing plant (14) further through being connected pipeline;
Lime set supervisor (12) between described pump (13) and chemicals dosing plant (14) is also equipped with flow detector;
Described chemicals dosing plant (14) and lime set are responsible for the junction of (12) and are controlled valve (15) equipped with one;
Flow detector, controller and control valve (15) are constituted adds pharmaceutical quantities open-loop control system, the outfan of flow detector is connected with the input of controller, flow detector is by the flow value input of detection to controller, controller obtains output by built-in algorithms computing, the outfan of controller is connected with the input controlling valve (15), make controller output can the aperture of adjusting control valve (15) in real time, the dosage adding medicament in (12) in order to control chemicals dosing plant (14) to be responsible for lime set;
The rear of steam condensate heat exchanger (10) arranges accurate filter (20), the outfan of described steam condensate heat exchanger (10) is connected with the water inlet of accurate filter (20), the rear of accurate filter (20) is provided with plate type heat exchanger (30), the outlet of described accurate filter (20) is connected with the thermal fluid inlet end of plate type heat exchanger (30), the water outlet end of plate type heat exchanger (30) is connected with the entrance of reverse osmosis produced pond (40), the outlet in reverse osmosis produced pond (40) is connected with the water inlet of mixed-bed system (50), the outlet of mixed-bed system (50) is connected with the entrance of water tank (60),
Described water tank (60) is the water tank with cooling system, it includes the hollow interlayer between internal layer water tank, outer layer water tank and internal layer water tank and outer layer water tank, the inside of described internal layer water tank is equipped with liquid level sensor and temperature sensor, the bottom of described outer layer water tank is provided with cold water inlet, its top is provided with cooling water outlet, cold water inlet communicates with described hollow interlayer with cooling water outlet, and water tank (60) directly takes back PTA process units by pipeline.
2. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: described medicament is oxygen scavenger, pH value regulator and clear pot agent.
3. the water circulation utilization system in PTA production process according to claim 2, it is characterised in that: pH adjusting agent is neutralizing amine.
4. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: described pump (13) is centrifugal pump.
5. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: described accurate filter (20) is more medium filter, and filtrate is quartz sand, anthracite and manganese sand.
6. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: the rear of described accurate filter (20) is provided with high-pressure pump, and described mixed-bed system (50) is with mixed bed force (forcing) pump.
7. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: the cooling water outlet of described water tank (60) is connected with cold water source by pipeline.
8. the water circulation utilization system in PTA production process according to claim 1, it is characterised in that: the connection pipeline of described water tank (60) and PTA process units is provided with valve.
9. the water circulation utilization system in PTA production process according to claim 8, it is characterised in that: described valve is electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641304.1A CN104671495B (en) | 2013-12-02 | 2013-12-02 | Water circulation utilization system in PTA production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641304.1A CN104671495B (en) | 2013-12-02 | 2013-12-02 | Water circulation utilization system in PTA production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104671495A CN104671495A (en) | 2015-06-03 |
| CN104671495B true CN104671495B (en) | 2016-06-08 |
Family
ID=53307157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310641304.1A Active CN104671495B (en) | 2013-12-02 | 2013-12-02 | Water circulation utilization system in PTA production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104671495B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172191A (en) * | 2011-12-20 | 2013-06-26 | 上海巴安水务股份有限公司 | Whole coal chemical industry plant condensate water processing system |
| CN203295307U (en) * | 2012-11-08 | 2013-11-20 | 世纪华扬环境工程有限公司 | High-temperature condensed water treatment device of petroleum refining industry |
| CN203668146U (en) * | 2013-12-02 | 2014-06-25 | 逸盛大化石化有限公司 | Water recycling system in PTA production process |
-
2013
- 2013-12-02 CN CN201310641304.1A patent/CN104671495B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172191A (en) * | 2011-12-20 | 2013-06-26 | 上海巴安水务股份有限公司 | Whole coal chemical industry plant condensate water processing system |
| CN203295307U (en) * | 2012-11-08 | 2013-11-20 | 世纪华扬环境工程有限公司 | High-temperature condensed water treatment device of petroleum refining industry |
| CN203668146U (en) * | 2013-12-02 | 2014-06-25 | 逸盛大化石化有限公司 | Water recycling system in PTA production process |
Non-Patent Citations (2)
| Title |
|---|
| 反渗透技术在蒸汽凝结水回收中的应用;李鹏飞;《能源工程》;201005;第2010卷(第5期);64-66 * |
| 过滤/离子交换法回收PTA装置的蒸汽凝水;房金祥;《中国给水排水》;200411;第20卷(第11期);11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104671495A (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104986899B (en) | High-concentration ammonia nitrogenous wastewater ammonia aeration and recycling treatment system and processing method | |
| CN104928866B (en) | Dye automatic control system | |
| CN103739025A (en) | High-efficiency and energy-saving multi-effect evaporator system | |
| CN104656692A (en) | System and method for controlling concentration ratio of circulating water using decarbonized and demineralized water as supplementing water | |
| CN203668146U (en) | Water recycling system in PTA production process | |
| CN104671495B (en) | Water circulation utilization system in PTA production process | |
| CN208320044U (en) | A kind of feed system of lithium hexafluoro phosphate crystallizer | |
| CN205088082U (en) | Sewage sludge treatment device | |
| CN204251750U (en) | The outer water bath heating device of a kind of groove for electroplating process plating | |
| CN206126876U (en) | Modular medicine system | |
| CN203668167U (en) | Water circulation system with cooling water tank | |
| CN202358920U (en) | Vacuum device of monoammonium phosphate double effect concentration system | |
| CN205892785U (en) | Demineralized water device raw water treatment system | |
| CN104671567B (en) | Water circulation system with cooling water tank | |
| CN104671568B (en) | Water recycling system and process in PTA production process | |
| CN203668168U (en) | Water recycling system in PTA production process | |
| CN208802931U (en) | A kind of device of reverse osmosis membrane processing high rigidity sewage | |
| CN203427293U (en) | Reversal water draining system of mold temperature controller | |
| CN208200430U (en) | A kind of multistage kinetic energy Superimposed energy saving distilled water water manufacturing system | |
| CN202898063U (en) | Continuous biological waste liquor inactivation system | |
| CN105380291A (en) | Automatic material boiling system | |
| CN206876048U (en) | A kind of online acid dip pickle | |
| CN206109125U (en) | Spent acid concentration and recycling system that contain heavy metal and particulate matter | |
| CN203454527U (en) | Cooling circulation water system | |
| CN205925037U (en) | Sulfate process titanium dioxide titaniferous solution's enrichment facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |