CN115448397A - Continuous wastewater treatment device and method with accurate and stable temperature control - Google Patents
Continuous wastewater treatment device and method with accurate and stable temperature control Download PDFInfo
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- CN115448397A CN115448397A CN202211206441.8A CN202211206441A CN115448397A CN 115448397 A CN115448397 A CN 115448397A CN 202211206441 A CN202211206441 A CN 202211206441A CN 115448397 A CN115448397 A CN 115448397A
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- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002351 wastewater Substances 0.000 claims abstract description 71
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 21
- 230000001954 sterilising effect Effects 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 57
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000008234 soft water Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 230000002779 inactivation Effects 0.000 abstract description 15
- 244000000010 microbial pathogen Species 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 238000011101 absolute filtration Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a continuous wastewater treatment device with accurate and stable temperature control, which comprises a wastewater collection tank, a pressure pump, a biological safety type buffer device, a first liquid level meter, a second liquid level meter, an electric heater, a heat preservation coil pipe, a flow meter and a flow control valve. The invention also discloses a continuous wastewater treatment method with accurate and stable temperature control, wherein a biosafety buffer device is arranged on the sterilization pipeline, so that pressure fluctuation in the pipeline is reduced, and meanwhile, a more accurate pipeline flow control method is adopted, so that the stability of the pressure and the flow of the sterilization pipeline in the continuous wastewater inactivation process can be effectively improved, the stable control of the inactivation temperature is further realized, the stability of equipment operation is greatly improved, and the biosafety risk is reduced.
Description
Technical Field
The invention relates to the field of wastewater treatment equipment, in particular to a continuous wastewater treatment device with accurate and stable temperature control, and further relates to a continuous wastewater treatment method with accurate and stable temperature control.
Background
At present, the wastewater treatment modes in a biological safety laboratory mainly comprise a continuous mode and a sequencing batch mode. The sequencing batch wastewater treatment is to collect wastewater by a collecting tank, heat the wastewater to a certain temperature by adopting a steam or electric heating mode to inactivate, and has the disadvantages of high energy consumption, uneven heating and possible dead angles. Continuous type waste water treatment passes through inactivation behind the pipeline heating, can realize the continuous processing of waste water, energy resource consumption is less relatively, area is less, the aperture that adopts control flow control valve usually or the frequency that adopts converter control force (forcing) pump 3 (generally be the centrifugal pump) realize the control to the pipeline flow, and then the realization is to the accurate control of temperature, but because there are factors such as pressure pulsation's characteristic in the fluctuation of grid voltage and centrifugal pump itself, it is undulant easily to lead to pressure and flow in the sterilization pipeline, be difficult to accurate control, the undulant stability that directly influences the inactivation temperature of flow, finally cause the influence to the inactivation process of equipment, bring the risk for the operation of biological safety laboratory.
Disclosure of Invention
The invention aims to provide a continuous wastewater treatment device with accurate and stable temperature control and a continuous wastewater treatment method with accurate and stable temperature control aiming at the defects and the shortcomings of the prior art, so that the running stability of equipment is greatly improved, and the biosafety risk in the inactivation process is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an accurate stable continuous type effluent treatment plant of control by temperature change, including the waste water collection tank, the bottom of waste water collection tank loops through first ooff valve, force (forcing) pump and seventh ooff valve and is connected with electric heater's input, electric heater's output loops through heat preservation coil pipe and flowmeter and is connected with flow control module's input, flow control module's output loops through the tenth ooff valve and the eleventh ooff valve is connected with the top of waste water collection tank, flow control module's output still is connected with the input of cooler through the ninth ooff valve, the output and the discharge port of cooler are connected.
The flow regulating module comprises a first flow regulating valve and a second flow regulating valve which are connected in parallel, and the pipe diameter of a pipeline for installing the first flow regulating valve is smaller than that of a pipeline for installing the second flow regulating valve.
The utility model provides an accurate stable continuous type effluent treatment plant of control by temperature change, still includes the third thermometer that is used for monitoring the interior temperature of waste water collecting tank, still including the second thermometer that is used for monitoring the temperature of the output outflow waste water of heat preservation coil pipe.
The utility model provides an accurate stable continuous type effluent treatment plant of control by temperature change, still include the buffer tank, the bottom of buffer tank is passed through the eighth ooff valve and is connected the pipeline between force (forcing) pump and the seventh ooff valve, the bottom of buffer tank still passes through the top that the waste water collection tank is connected to the second ooff valve, the third ooff valve, fourth ooff valve and fifth ooff valve one end all are connected with the input of filter, the third ooff valve, the fourth ooff valve and the fifth ooff valve other end respectively with compressed air, steam and soft water are connected, the output of filter is connected with the top of buffer tank through the sixth ooff valve, be provided with the manometer of monitoring pressure in the buffer tank on the buffer tank, still be provided with first level gauge and the second level gauge that are used for monitoring the water level in the buffer tank on the buffer tank, first level gauge is located second level gauge top, still be provided with the first thermometer of monitoring temperature in the buffer tank on the buffer tank.
A continuous wastewater treatment method with accurate and stable temperature control comprises the following steps:
step 1, closing the second switch valve and the eighth switch valve, opening the fifth switch valve and the sixth switch valve, injecting soft water into the buffer tank, closing the fifth switch valve after the liquid level reaches the height of the second liquid level meter,
step 3, opening the first switch valve, the seventh switch valve, the tenth switch valve and the eleventh switch valve, pressurizing the wastewater in the wastewater collection tank by a pressurizing pump, heating the wastewater to 121-150 ℃ by an electric heater, performing combined control on the first flow regulating valve and the second flow regulating valve to enable the flow of the flow meter to reach the preset flow requirement, then opening the eighth switch valve, heating the wastewater and flowing into the wastewater collection tank,
step 4, when the temperature of the second thermometer reaches over 121 ℃, timing is started, after the set timing time is reached, the ninth switch valve is opened, the tenth switch valve is closed, the inactivated wastewater is discharged from the discharge port through the cooler,
and 5, sterilizing the sterilized pipeline.
The preset flow in step 3 is that the time for wastewater to flow through the heat preservation coil pipe is more than or equal to 20 minutes.
The combined control method of the first flow rate regulation valve and the second flow rate regulation valve as described above includes the steps of:
the method comprises the steps of closing a first flow regulating valve, controlling the opening degree of a second flow regulating valve, locking the opening degree of the second flow regulating valve when the numerical value of a flowmeter is two thirds of the preset flow, then opening the first flow regulating valve, controlling the opening degree of the first flow regulating valve, and stabilizing the numerical value of the flowmeter at the preset flow.
Step 5 as described above comprises the steps of:
closing the first switch valve, the second switch valve, the ninth switch valve and the eleventh switch valve, opening the fourth switch valve, the sixth switch valve, the seventh switch valve, the eighth switch valve, the tenth switch valve, the first flow regulating valve and the second flow regulating valve, allowing steam to enter the buffer tank and the sterilization pipeline, opening the eleventh switch valve at set time intervals, discharging condensed water to the waste water collection tank, monitoring the temperature of the first thermometer and the second thermometer, starting timing when the temperature of the first thermometer and the second thermometer reaches more than 121 ℃, closing all valves after set time,
and opening the fourth switch valve, the eighth switch valve and the first switch valve, closing other valves, injecting steam into the wastewater collection tank from the bottom of the wastewater collection tank, opening the second switch valve at set intervals, monitoring the temperature of the third thermometer, starting timing when the temperature reaches over 121 ℃, and closing all valves after the set time.
Compared with the prior art, the invention has the following beneficial effects:
1. the buffer tank is adopted, so that pressure fluctuation and impact in the sterilization pipeline are reduced, a good effect is achieved on stable control of flow, and stable control of inactivation temperature is facilitated. And the buffer tank fully considers the biological safety risk and avoids pathogen leakage.
2. This buffer tank adopts the air as the buffer medium, and the air does not have ageing problem as the buffer medium, improve equipment life.
3. By adopting the control method of the double-flow regulating valve, the diameter of the pipeline of one flow regulating valve is changed, so that the precise flow control of the small pipeline valve is realized, the problem that the large pipeline valve is difficult to precisely control the flow is avoided, and the precise and stable control of the inactivation temperature is further ensured.
4. The control of the flow and the temperature of the inactivation by the inactivation method can be adjusted according to the requirements.
5. The disinfection method disinfects the whole equipment, and eliminates the biological safety risk.
Drawings
FIG. 1 is a system diagram of the present invention.
Fig. 2 is a schematic view of the position of the pipe where the first flow rate regulating valve is located.
In the figure: 1-a wastewater collection tank; 2-a first on-off valve; 3-a pressure pump; 4-a second on-off valve; 5-a pressure gauge; 6-a third on-off valve; 7-a fourth switch valve; 8-a fifth on-off valve; 9-a filter; 10-a sixth on-off valve; 11-a first level gauge; 12-a buffer tank; 13-a second level gauge; 14-a first thermometer; 15-an electric heater; 16-heat preservation coil pipe; 17-a flow meter; 18-a first flow regulating valve; 19-a second flow regulating valve; 20-a second thermometer; 21-seventh on-off valve; 22-eighth on-off valve; 23-a cooler; 24-a ninth on-off valve; 25-tenth switching valve; 26-a third thermometer; 27-eleventh on-off valve.
Detailed Description
The present invention will be described in further detail with reference to examples for the purpose of facilitating understanding and practice of the invention by those of ordinary skill in the art, and it is to be understood that the present invention has been described in the illustrative embodiments and is not to be construed as limited thereto.
The utility model provides a stable continuous type effluent treatment plant of control by temperature change, includes waste water collection tank 1, biological safe type buffer, first level gauge 11, second level gauge 13, electric heater 15, heat preservation coil pipe 16, flowmeter 17, flow control valve etc. biological safe type buffer includes buffer 12, second ooff valve 4, third ooff valve 6, fourth ooff valve 7, fifth ooff valve 8, sixth ooff valve 10, manometer 5, first level gauge 11, second level gauge 13, first thermometer 14 and filter 9.
The bottom of the waste water collecting tank 1 sequentially passes through the first switch valve 2, the pressure pump 3 and the seventh switch valve 21 are connected with the input end of the electric heater 15, the output end of the electric heater 15 sequentially passes through the heat preservation coil pipe 16 and the flowmeter 17 and is connected with the input end of the flow regulating module, the output end of the flow regulating module sequentially passes through the tenth switch valve 25 and the eleventh switch valve 27 and is connected with the top of the waste water collecting tank 1, the output end of the flow regulating module is further connected with the input end of the cooler 23 through the ninth switch valve 24, and the output end of the cooler 23 is connected with the discharge port. A third temperature gauge 26 is included for monitoring the temperature in the waste water collection tank 1, and a second temperature gauge 20 is included for monitoring the temperature of the waste water flowing out of the output of the thermal insulating coil 16. Still include buffer tank 12, the pipeline between force (forcing) pump 3 and the seventh ooff valve 21 is connected through eighth ooff valve 22 to the bottom of buffer tank 12, the top of waste water collection tank 1 is still connected through second ooff valve 4 to the bottom of buffer tank 12, third ooff valve 6, fourth ooff valve 7 and the 8 one end of fifth ooff valve are all connected with the input of filter 9, third ooff valve 6, the other end of fourth ooff valve 7 and fifth ooff valve 8 respectively with compressed air, steam and soft water connection, the output of filter 9 is connected with the top of buffer tank 12 through sixth ooff valve 10, be provided with the manometer 5 of monitoring buffer tank 12 internal pressure on the buffer tank 12, still be provided with first level gauge 11 and the second level gauge 13 that are used for monitoring buffer tank 12 internal water level on the buffer tank 12, first level gauge 11 is located second level gauge 13 top, still be provided with the first thermometer 14 of monitoring buffer tank 12 internal temperature on the buffer tank 12.
The filter 9 can filter 0.2um of pathogenic microorganisms, preventing the pathogenic microorganisms from leaking from the upper end of the sixth switching valve 10. In this embodiment, the filter 9 may be a PALL brand Emflon PFR series filter with an absolute filtration accuracy of 0.2 μm in liquid filtration applications and 0.003 μm in gas applications.
The flow regulating module comprises a first flow regulating valve 18 and a second flow regulating valve 19 which are connected in parallel, and the pipe diameter of a pipeline for installing the first flow regulating valve 18 is smaller than that of a pipeline for installing the second flow regulating valve 19. Preferably, the pipe diameter of the pipe of the first flow rate adjustment valve 18 is one-half of the pipe diameter of the pipe in which the second flow rate adjustment valve 19 is installed.
A continuous wastewater treatment method with accurate and stable temperature control utilizes the continuous wastewater treatment device with accurate and stable temperature control, and comprises the following steps:
and step 1, closing the second switch valve 4 and the eighth switch valve 22, opening the fifth switch valve 8 and the sixth switch valve 10, injecting soft water into the buffer tank 12, and closing the fifth switch valve 8 after the liquid level reaches the height of the second liquid level meter 13.
And 2, opening the third switch valve 6, injecting compressed air into the buffer tank 12, keeping the pressure of the compressed air constant between 3bar and 4bar, and closing the third switch valve 6 and the sixth switch valve 10 after the pressure value of the pressure gauge 5 on the buffer tank 12 is stabilized between 3bar and 4 bar.
And 3, opening the first switch valve 2, the seventh switch valve 21, the tenth switch valve 25 and the eleventh switch valve 27, starting an inactivation program, pressurizing the wastewater in the wastewater collection tank 1 by the pressure pump 3, heating the wastewater to 134 ℃ by the electric heater 15, performing combined control on the first flow regulating valve 18 and the second flow regulating valve 19 to enable the flow of the flowmeter 17 to meet preset flow requirements for inactivation, then opening the eighth switch valve 22 to enable the buffer tank 12 to be communicated with a sterilization pipeline, and heating the wastewater to flow into the wastewater collection tank 1.
The pipeline of the loop where the wastewater collection tank 1, the first switch valve 2, the pressure pump 3, the seventh switch valve 21, the electric heater 15, the heat preservation coil pipe 16, the flow meter 17, the first flow regulating valve 18, the second flow regulating valve 19, the tenth switch valve 25 and the eleventh switch valve 27 are located is a sterilization pipeline, after the pressure pump 3 pressurizes, the pressure in the sterilization pipeline is the same as or similar to the pressure in the buffer tank 12, and with the continuous pressurization of the pressure pump 3 and the continuous heating of the electric heater 15, the pressure in the sterilization pipeline generates a certain range of fluctuation change and is slightly higher than the pressure in the buffer tank 12, after the steps 1 and 2, the bottom of the buffer tank 12 is filled with soft water, the pressure in the space above the soft water in the buffer tank 12 is stabilized at 3bar to 4bar, and the soft water blocks the communication between the high-pressure gas in the buffer tank 12 and the sterilization pipeline, so that the high-pressure gas cannot enter the sterilization pipeline, and further changes the pressure in the sterilization pipeline, and the inactivation in the sterilization pipeline can be realized through the buffer tank 12 in the sterilization process.
The preset flow rate of inactivation meets the condition that the time for the wastewater to flow through the heat-preservation coil 16 is more than or equal to 20 minutes.
The combined control method of the first flow rate adjustment valve 18 and the second flow rate adjustment valve 19 is as follows:
the first flow regulating valve 18 is closed first, the opening degree of the second flow regulating valve 19 is controlled, the numerical value of the flow meter 17 is about two thirds of the preset flow, after three minutes, the opening degree of the second flow regulating valve 19 is locked, then the first flow regulating valve 18 is opened, the opening degree of the first flow regulating valve 18 is controlled, and the numerical value of the flow meter 17 is stabilized at the preset inactivation flow numerical value. Due to the fact that the pipeline at the position of the first flow regulating valve 18 is variable-diameter, the method can enable large flow to pass through the pipeline of the second flow regulating valve 19, and small flow can be controlled more accurately through the first flow regulating valve 18.
And 4, starting timing when the temperature of the second thermometer 20 reaches over 121 ℃, opening the ninth switch valve 24 and closing the tenth switch valve 25 after 5 minutes, and discharging the inactivated wastewater from a discharge port through the cooler 23.
And 5, when all the wastewater in the wastewater collection tank 1 is treated quickly, residual wastewater in the pipeline inevitably exists in the final process and cannot be treated completely, so that the pipeline needs to be disinfected.
The disinfection method comprises the following steps:
sterilizing a biological safety type buffer device and a sterilization pipeline: closing the first switch valve 2, the second switch valve 4, the ninth switch valve 24 and the eleventh switch valve 27, opening the fourth switch valve 7, the sixth switch valve 10, the seventh switch valve 21, the eighth switch valve 22 and the tenth switch valve 25, opening the first flow regulating valve 18 and the second flow regulating valve 19, allowing steam to enter the buffer tank 12 and the sterilization pipeline, opening the eleventh switch valve (27) for 1 second every 45 seconds, discharging condensed water to the waste water collection tank 1, monitoring the temperatures of the first thermometer 14 and the second thermometer 20, starting timing when the temperatures of the two reach more than 121 ℃, finishing disinfection after 20 minutes, and closing all the valves.
And (3) disinfecting the wastewater collection tank 1: opening the fourth switch valve 7, the eighth switch valve 22 and the first switch valve 2, closing other valves (including a wastewater inlet), injecting steam into the wastewater collection tank 1 from the bottom of the wastewater collection tank 1, when injecting steam from the bottom of the wastewater collection tank 1, firstly heating residual wastewater remained in the wastewater collection tank 1, then heating the space above the residual wastewater in the wastewater collection tank 1, and because the steam passes through the residual wastewater first, the heating efficiency of the space above the residual wastewater is not high, therefore, opening the second switch valve (4) for 2 seconds every 30 seconds, directly injecting the steam into the space above the residual wastewater in the wastewater collection tank 1, monitoring the temperature of the third thermometer 26, starting timing when the temperature reaches more than 121 ℃, finishing disinfection for 20 minutes, and closing all valves.
It should be noted that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides an accurate stable continuous type effluent treatment plant of control by temperature change, including waste water collection tank (1), a serial communication port, the bottom of waste water collection tank (1) loops through first ooff valve (2), force (forcing) pump (3) and seventh ooff valve (21) is connected with the input of electric heater (15), the output of electric heater (15) loops through heat preservation coil pipe (16) and flowmeter (17) and is connected with flow control module's input, flow control module's output loops through tenth ooff valve (25) and eleventh ooff valve (27) and is connected with the top of waste water collection tank (1), flow control module's output still is connected with the input of cooler (23) through ninth ooff valve (24), the output and the discharge port of cooler (23) are connected.
2. The continuous wastewater treatment device with accurately and stably controlled temperature according to claim 1, wherein the flow regulating module comprises a first flow regulating valve (18) and a second flow regulating valve (19) which are connected in parallel, and the pipe diameter of the pipe for installing the first flow regulating valve (18) is smaller than that of the pipe for installing the second flow regulating valve (19).
3. The continuous waste water treatment device with accurate and stable temperature control as claimed in claim 2, characterized by further comprising a third thermometer (26) for monitoring the temperature in the waste water collecting tank (1) and a second thermometer (20) for monitoring the temperature of the waste water flowing out of the output end of the heat-preserving coil (16).
4. The continuous waste water treatment device with accurate and stable temperature control according to claim 3, further comprising a buffer tank (12), wherein the bottom of the buffer tank (12) is connected with a pipeline between the pressure pump (3) and the seventh switch valve (21) through an eighth switch valve (22), the bottom of the buffer tank (12) is further connected with the top of the waste water collecting tank (1) through a second switch valve (4), one end of each of a third switch valve (6), a fourth switch valve (7) and a fifth switch valve (8) is connected with the input end of the filter (9), the other end of each of the third switch valve (6), the fourth switch valve (7) and the fifth switch valve (8) is connected with compressed air, steam and soft water respectively, the output end of the filter (9) is connected with the top of the buffer tank (12) through a sixth switch valve (10), a pressure gauge (5) for monitoring the pressure in the buffer tank (12) is arranged on the buffer tank (12), a first liquid level gauge (11) and a second liquid level gauge (13) for monitoring the water level in the buffer tank (12) are arranged on the buffer tank (12), and a first liquid level gauge (13) is arranged on the buffer tank (12).
5. A method for treating wastewater with accurately and stably controlled temperature by using the apparatus for treating wastewater with accurately and stably controlled temperature according to claim 4, comprising the steps of:
step 1, closing the second switch valve (4) and the eighth switch valve (22), opening the fifth switch valve (8) and the sixth switch valve (10), injecting soft water into the buffer tank (12), closing the fifth switch valve (8) after the liquid level reaches the height of the second liquid level meter (13),
step 2, opening the third switch valve (6), injecting compressed air into the buffer tank (12), closing the third switch valve (6) and the sixth switch valve (10) after the pressure value of the pressure gauge (5) on the buffer tank (12) is stabilized at 3-4 bar,
step 3, opening a first switch valve (2), a seventh switch valve (21), a tenth switch valve (25) and an eleventh switch valve (27), pressurizing the wastewater in the wastewater collection tank (1) by a pressurizing pump (3), heating the wastewater to 121-150 ℃ by an electric heater (15), performing combined control on a first flow regulating valve (18) and a second flow regulating valve (19) to enable the flow of a flow meter (17) to reach a preset flow requirement, then opening an eighth switch valve (22), heating the wastewater and flowing into the wastewater collection tank (1),
step 4, when the temperature of the second thermometer (20) reaches over 121 ℃, timing is started, after the set timing time is reached, the ninth switch valve (24) is opened, the tenth switch valve (25) is closed, the inactivated wastewater is discharged from a discharge port through the cooler (23),
and 5, sterilizing the sterilized pipeline.
6. The continuous wastewater treatment method with precise and stable temperature control as claimed in claim 5, wherein the preset flow rate in step 3 is such that the time for wastewater to flow through the thermal insulation coil (16) is greater than or equal to 20 minutes.
7. The continuous wastewater treatment method with precisely and stably controlled temperature according to claim 5, wherein the combined control method of the first flow regulating valve (18) and the second flow regulating valve (19) comprises the following steps:
the method comprises the steps of closing a first flow regulating valve (18), controlling the opening degree of a second flow regulating valve (19) to enable the numerical value of a flow meter (17) to be two thirds of the preset flow, locking the opening degree of the second flow regulating valve (19), then opening the first flow regulating valve (18), controlling the opening degree of the first flow regulating valve (18), and enabling the numerical value of the flow meter (17) to be stabilized at the preset flow.
8. The continuous wastewater treatment method with precise and stable temperature control according to claim 5, wherein the step 5 comprises the following steps:
closing a first switch valve (2), a second switch valve (4), a ninth switch valve (24) and an eleventh switch valve (27), opening a fourth switch valve (7), a sixth switch valve (10), a seventh switch valve (21), an eighth switch valve (22), a tenth switch valve (25), a first flow regulating valve (18) and a second flow regulating valve (19), allowing steam to enter a buffer tank (12) and a sterilization pipeline, opening the eleventh switch valve (27) at set intervals, discharging condensed water to a waste water collecting tank (1), monitoring the temperatures of a first thermometer (14) and a second thermometer (20), starting timing when both reach more than 121 ℃, closing all valves after set time,
and opening a fourth switch valve (7), an eighth switch valve (22) and the first switch valve (2), closing other valves, injecting steam into the wastewater collection tank (1) from the bottom of the wastewater collection tank (1), opening a second switch valve (4) at set time intervals, monitoring the temperature of a third thermometer (26), starting timing when the temperature reaches over 121 ℃, and closing all valves after the set time.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050006310A1 (en) * | 2003-07-10 | 2005-01-13 | Rajat Agrawal | Purification and recovery of fluids in processing applications |
| CN201704235U (en) * | 2010-05-31 | 2011-01-12 | 中煤能源黑龙江煤化工有限公司 | Oxygen feeding device |
| CN102091561A (en) * | 2011-01-11 | 2011-06-15 | 深圳市超纯环保科技有限公司 | Adaptive proportional liquid mixing device |
| CN110040799A (en) * | 2019-04-22 | 2019-07-23 | 中国科学院武汉病毒研究所 | A kind of continous way high-level biosafety laboratory waste water inactivating device and method |
| CN211624244U (en) * | 2020-01-22 | 2020-10-02 | 沈阳九和流体科技有限公司 | Micro-control combined regulating valve |
| CN212061893U (en) * | 2019-10-28 | 2020-12-01 | 中广核研究院有限公司 | Multistage parallel water supply valve control device of nuclear power plant |
| CN212433647U (en) * | 2020-09-07 | 2021-01-29 | 中国航空工业集团公司沈阳空气动力研究所 | Wide-range high-precision gas pressure and flow quick adjusting device |
| CN113649086A (en) * | 2021-09-22 | 2021-11-16 | 中国科学院武汉病毒研究所 | Continuous wastewater collection device capable of being rapidly sterilized and used for wastewater treatment and sterilization method thereof |
-
2022
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050006310A1 (en) * | 2003-07-10 | 2005-01-13 | Rajat Agrawal | Purification and recovery of fluids in processing applications |
| CN201704235U (en) * | 2010-05-31 | 2011-01-12 | 中煤能源黑龙江煤化工有限公司 | Oxygen feeding device |
| CN102091561A (en) * | 2011-01-11 | 2011-06-15 | 深圳市超纯环保科技有限公司 | Adaptive proportional liquid mixing device |
| CN110040799A (en) * | 2019-04-22 | 2019-07-23 | 中国科学院武汉病毒研究所 | A kind of continous way high-level biosafety laboratory waste water inactivating device and method |
| CN212061893U (en) * | 2019-10-28 | 2020-12-01 | 中广核研究院有限公司 | Multistage parallel water supply valve control device of nuclear power plant |
| CN211624244U (en) * | 2020-01-22 | 2020-10-02 | 沈阳九和流体科技有限公司 | Micro-control combined regulating valve |
| CN212433647U (en) * | 2020-09-07 | 2021-01-29 | 中国航空工业集团公司沈阳空气动力研究所 | Wide-range high-precision gas pressure and flow quick adjusting device |
| CN113649086A (en) * | 2021-09-22 | 2021-11-16 | 中国科学院武汉病毒研究所 | Continuous wastewater collection device capable of being rapidly sterilized and used for wastewater treatment and sterilization method thereof |
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