CN102071727B - Reuse technology for photovoltaic ultrapure water wastewater and dual-pipeline water supply device - Google Patents
Reuse technology for photovoltaic ultrapure water wastewater and dual-pipeline water supply device Download PDFInfo
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- CN102071727B CN102071727B CN 201010601062 CN201010601062A CN102071727B CN 102071727 B CN102071727 B CN 102071727B CN 201010601062 CN201010601062 CN 201010601062 CN 201010601062 A CN201010601062 A CN 201010601062A CN 102071727 B CN102071727 B CN 102071727B
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Abstract
The invention discloses reuse technology for photovoltaic ultrapure water wastewater. The technology is that: collected wastewater is pressurized by using a dual-pipeline water supply device so as to keep a constant water pressure of a wastewater reuse pipe and is used as clean water. A tap water inlet pipe and a wastewater inlet pipe on the dual-pipeline water supply device are in series connected with a one-way valve; then the two pipelines are connected to a reuse water output pipe in parallel; the reuse water output pipe is in series connected with a water pressure detection device which is connected with a variable-frequency control device through a circuit; the wastewater inlet pipe is in parallel connected with two groups of pressurizing devices and then is connected to the reuse water output pipe through the one-way valve; the variable-frequency control device can receive a signal transmitted from the water pressure detection device and sends a signal to control the pressurizing device to work or close after comparing an acquired signal with a preset value and processing the acquired signal; and when the wastewater inlet pipe has no water, the tap water inlet pipe is opened automatically. By using the reuse technology, a large amount of industrial wastewater can be used as cleaning and cooling water for silicon ingots.
Description
Technical field
The invention belongs to water treatment field, specifically relate to the reuse method and the dual circuit water supply installation of photovoltaic ultra-pure water waste water.
Background technology
In the photovoltaic industry, clean needs such as silicon raw material and silicon chip and use the very high ultra-pure water (resistivity reaches 18M Ω) of purity.What general making ultra-pure water adopted is that 2 grades of RO treatment systems add EDI electricity regeneration techniques; This kind manufacturing process producing water ratio is generally 60%-80%, and long-term the use certainly will will be discharged the high-concentration waste water that contains salts substances, is example with the production of polysilicon line of 100 MW; Former water supply is about 35.7T/ hour; The waste water that per hour produces is 10.7 tons, if directly discharge by routine, will increase the treating capacity of industrial wastewater greatly.
Summary of the invention
The object of the present invention is to provide the reuse method and the dual circuit water supply installation of photovoltaic ultra-pure water waste water; Most waste water recycling is in matting; To water quality requirement is not high but water supply volume is big, can significantly reduce the treating capacity of industrial wastewater, save the water service amount simultaneously; Thereby reach energy-saving and emission-reduction, reduce the purpose of entreprise cost.
To achieve these goals, technical scheme of the present invention is following:
The reuse method of silicon materials Cleaning Wastewater is characterized in that may further comprise the steps:
(1) associated mechanisms in the use dual circuit water supply installation is to the waste water supercharging of collecting;
Described dual circuit water supply installation comprises the running water inlet pipe, waste water inlet tube, one way valve, recycle-water efferent duct, wastewater discharge pipe, frequency-converting control device, device for detecting water pressure, supercharging device; All be connected in series an one way valve on running water inlet pipe, the waste water inlet tube pipeline, the two-way pipeline is parallel on the recycle-water efferent duct then; Be connected in series a device for detecting water pressure on the said recycle-water efferent duct, had circuit to be connected with frequency-converting control device; On the said waste water inlet tube parallel connection two groups of supercharging devices, and then be connected on the recycle-water efferent duct through one way valve; Said supercharging device has circuit to be connected with frequency-converting control device;
(2) described frequency-converting control device is accepted the signal that device for detecting water pressure transmission comes, and after acquired signal and setting value are compared and treated, sends the work of signal controlling supercharging device or closes the constant hydraulic pressure of maintenance recycle-water efferent duct;
(3) when the waste water inlet tube is anhydrous, open running water inlet pipe one way valve.
The present invention can keep the constant hydraulic pressure of recycle-water efferent duct, great amount of wastewater is applied to silicon ingot cleans, cooling water replenishes and the workshop cleaning water.
The dual circuit water supply installation comprises the running water inlet pipe, waste water inlet tube, one way valve, recycle-water efferent duct, wastewater discharge pipe, frequency-converting control device, device for detecting water pressure, supercharging device;
All be connected in series an one way valve on running water inlet pipe, the waste water inlet tube pipeline, the two-way pipeline is parallel on the recycle-water efferent duct then;
Be connected in series a device for detecting water pressure on the recycle-water efferent duct, had circuit to be connected with frequency-converting control device;
On the waste water inlet tube parallel connection two groups of supercharging devices, and then be connected on the recycle-water efferent duct through one way valve, supercharging device has circuit to be connected with frequency-converting control device; Because the running of supercharging device can be transported to the waste water of low head continuously in the recycle-water efferent duct and go;
Described frequency-converting control device can be accepted the signal that device for detecting water pressure transmission comes, and after acquired signal and setting value are compared and treated, sends the work of signal controlling supercharging device or closes.
Description of drawings
Fig. 1 is a dual circuit water supply sketch map;
Description of reference numerals:
1 running water inlet pipe, 2 waste water inlet tubes, 3 be one way valve, 4 recycle-water efferent ducts, 5 wastewater discharge pipes, 6 frequency-converting control devices, 7 device for detecting water pressure, 8 supercharging devices from the beginning.
The specific embodiment
Through accompanying drawing and embodiment the utility model is done further to set forth in detail below.
The dual circuit water supply installation comprises running water inlet pipe 1; Waste water inlet tube 2, one way valve 3, recycle-water efferent duct 4, wastewater discharge pipe 5, frequency-converting control device 6, device for detecting water pressure 7, supercharging device 8 (insider claims VFD) from the beginning; After shown in accompanying drawing, connecting, waste water inlet tube 2 and municipal tap water inlet tube 1 are owing to after having adopted two one way valves 3 in opposite directions to be connected in series, be parallel on the final recycle-water efferent duct 4; Thereby guaranteed to have only in the same time one road pipeline that the water source can be provided; And can both independently supply water in each road, and the supply channel water source can not flow backward to non-supply channel, and principle is similar to the interlocking in the circuit.
The pressure of supply water of municipal tap water is almost steady state value; But the discharging of waste water can only realize through the height fall of discharge pipe, can not keep the constant pressure same with tap water, so we just will carry out supercharging for waste water.At present embodiment, we are provided with two groups of supercharging devices 8, the using and the reserved in waste water inlet tube 2 back.And on recycle-water efferent duct 4, be provided with device for detecting water pressure 7, and be connected with frequency-converting control device 6 circuit, be transferred to the hydraulic pressure Data Dynamic that can will detect in real time frequency-converting control device 6.Suppose that we require the hydraulic pressure of recycle-water efferent duct 4 to maintain 0.35mPa; After frequency-converting control device 6 has been accepted the measured data of device for detecting water pressure 7 transmission; Compare and treat with our setting value 0.35mPa; Thereby provide the operating frequency that frequency converter needs, control and frequency-converting control device 6 have the pass of the supercharging device 8 that circuit is connected or stop, and use the pressure of supply water of stablizing waste water.
Because the water supply situation of pure water manufacturing system changes according to the workshop demand, and the pure water demand always presents nonlinear situation, causes wastewater discharge also to be in a kind of unsettled supply status.Existing aquifer yield with 25T/ hour, the volume of final nitrogen-sealed water tank is that 20m3 is an example, i.e. the dead time of waste water supply, length possibly be 48 minutes, just need open running water inlet pipe 1 during the waste water stop supplies.Anhydrous when waste water inlet tube 2, and recycle-water efferent duct 4 because the setting of two one way valves 3 makes one way valve 3 flaps of municipal tap water inlet tube 1 open, supplies water when presenting negative pressure owing to dehydration; One way valve 3 flaps of waste water inlet tube are then closed.Vice versa, thereby reach stable water supply, keeps recycle-water efferent duct 4 and remain constant hydraulic pressure.Production of polysilicon line with 100MW is an example, need clean 8 of silicon ingots every day, each ingot water consumption 2.4T; Cooling water per hour replenishes 4T; The workshop cleaning water is 3T per hour, amounts to per hour water 7.8T, less than the aquifer yield 10T of high-concentration waste water, so waste water can satisfy the water demand of above three aspects fully in theory.If want to make full use of waste water, reduce the tap water consumption or, can consider to build the wastewater disposal basin of a volume 6.5T fully without tap water.
For the reuse of industrial wastewater, can effectively save water resource, reduce production costs; Still with above-mentioned data instance, as not adopting the waste water recycling technology, with per hour 7.8T calculating; Need water 62400T in 1 year, and counted 249600 yuan, and after adopting the waste water recycling technology; This 62400T water all can use waste discharge, economic benefit and obvious environment benefit.
The core water supply scheme of this technology not only can be used for the photovoltaic industry, and is equally applicable to the solution that other all dual circuits supply water, and has so greatly improved the ductility and the compliance of this water supply scheme.
Claims (2)
1. the reuse method of photovoltaic ultra-pure water waste water is characterized in that may further comprise the steps:
(1) associated mechanisms in the use dual circuit water supply installation is to the waste water supercharging of collecting;
Described dual circuit water supply installation comprises the running water inlet pipe, waste water inlet tube, one way valve, recycle-water efferent duct, wastewater discharge pipe, frequency-converting control device, device for detecting water pressure, supercharging device; All be connected in series an one way valve on running water inlet pipe, the waste water inlet tube pipeline, the two-way pipeline is parallel on the recycle-water efferent duct then;
Be connected in series a device for detecting water pressure on the said recycle-water efferent duct, device for detecting water pressure has circuit to be connected with frequency-converting control device; On the said waste water inlet tube parallel connection two groups of supercharging devices, and then be connected on the recycle-water efferent duct through one way valve; Said supercharging device has circuit to be connected with frequency-converting control device;
(2) described frequency-converting control device is accepted the signal that device for detecting water pressure transmission comes, and after acquired signal and setting value are compared and treated, sends the work of signal controlling supercharging device or closes the constant hydraulic pressure of maintenance recycle-water efferent duct;
(3) when the waste water inlet tube is anhydrous, open running water inlet pipe one way valve.
2. the dual circuit water supply installation comprises the running water inlet pipe, waste water inlet tube, one way valve, recycle-water efferent duct, wastewater discharge pipe, frequency-converting control device, device for detecting water pressure, supercharging device; It is characterized in that: all be connected in series an one way valve on said running water inlet pipe, the waste water inlet tube pipeline, the two-way pipeline is parallel on the recycle-water efferent duct then;
Be connected in series a device for detecting water pressure on the said recycle-water efferent duct, device for detecting water pressure has circuit to be connected with frequency-converting control device;
On the said waste water inlet tube parallel connection two groups of supercharging devices, and then be connected on the recycle-water efferent duct through one way valve;
Said supercharging device has circuit to be connected with frequency-converting control device; Described frequency-converting control device is accepted the signal that device for detecting water pressure transmission comes, and after acquired signal and setting value are compared and treated, sends the work of signal controlling supercharging device or closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010601062 CN102071727B (en) | 2010-12-23 | 2010-12-23 | Reuse technology for photovoltaic ultrapure water wastewater and dual-pipeline water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010601062 CN102071727B (en) | 2010-12-23 | 2010-12-23 | Reuse technology for photovoltaic ultrapure water wastewater and dual-pipeline water supply device |
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| Publication Number | Publication Date |
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| CN102071727A CN102071727A (en) | 2011-05-25 |
| CN102071727B true CN102071727B (en) | 2012-12-12 |
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| CN 201010601062 Expired - Fee Related CN102071727B (en) | 2010-12-23 | 2010-12-23 | Reuse technology for photovoltaic ultrapure water wastewater and dual-pipeline water supply device |
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| CN106731207A (en) * | 2017-01-03 | 2017-05-31 | 石家庄旭新光电科技有限公司 | Waste water recycling system and its implementation in liquid crystal glass base production |
Citations (5)
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|---|---|---|---|---|
| CN1482071A (en) * | 2002-09-13 | 2004-03-17 | 中芯国际集成电路制造（上海）有限公 | Ultrapure water recovery pipe line system of quartz tube rinsing table |
| CN201074253Y (en) * | 2007-07-26 | 2008-06-18 | 厦门溢盛环保科技有限公司 | Recycling plant for electroplating cyanide-containing waste water |
| CN101353208A (en) * | 2007-07-26 | 2009-01-28 | 厦门溢盛环保科技有限公司 | Reclaiming process for electroplating cyanic waste water and equipment thereof |
| CN101423310A (en) * | 2008-11-14 | 2009-05-06 | 钱志刚 | Circulative reuse treatment method of electric ultrapure water |
| CN201634539U (en) * | 2010-03-04 | 2010-11-17 | 安纳社环保工程（苏州）有限公司 | Treatment system for reclaiming incision waste water into ultrapure water in semiconductor industry |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005224656A (en) * | 2004-02-10 | 2005-08-25 | Japan Organo Co Ltd | Ultrapure water production/feed device |
| JP4432583B2 (en) * | 2004-03-31 | 2010-03-17 | 栗田工業株式会社 | Ultrapure water production equipment |
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2010
- 2010-12-23 CN CN 201010601062 patent/CN102071727B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482071A (en) * | 2002-09-13 | 2004-03-17 | 中芯国际集成电路制造（上海）有限公 | Ultrapure water recovery pipe line system of quartz tube rinsing table |
| CN201074253Y (en) * | 2007-07-26 | 2008-06-18 | 厦门溢盛环保科技有限公司 | Recycling plant for electroplating cyanide-containing waste water |
| CN101353208A (en) * | 2007-07-26 | 2009-01-28 | 厦门溢盛环保科技有限公司 | Reclaiming process for electroplating cyanic waste water and equipment thereof |
| CN101423310A (en) * | 2008-11-14 | 2009-05-06 | 钱志刚 | Circulative reuse treatment method of electric ultrapure water |
| CN201634539U (en) * | 2010-03-04 | 2010-11-17 | 安纳社环保工程（苏州）有限公司 | Treatment system for reclaiming incision waste water into ultrapure water in semiconductor industry |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-224656A 2005.08.25 |
| JP特开2005-288300A 2005.10.20 |
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