CN113649086A

CN113649086A - Continuous wastewater collection device capable of being rapidly sterilized and used for wastewater treatment and sterilization method thereof

Info

Publication number: CN113649086A
Application number: CN202111113090.1A
Authority: CN
Inventors: 童骁; 邹靖; 汤华山; 王振; 王骏; 袁志明
Original assignee: Wuhan Institute of Virology of CAS
Current assignee: Wuhan Institute of Virology of CAS
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2021-11-16
Anticipated expiration: 2041-09-22
Also published as: CN113649086B

Abstract

The invention discloses a rapid-disinfection continuous wastewater collection device for wastewater treatment and a disinfection method thereof, and belongs to the technical field of wastewater treatment equipment. This waste water collection device top is provided with waste water entry, soft water entry, and the below is provided with steam and comdenstion water discharge port, when waste water collection device needs the disinfection, injects steam heat preservation into pressing from both sides the cover to from the top and the bottom of waste water collection tank injection steam, accomplish quick disinfection with the interior temperature heating of waste water collection tank to more than 121 ℃. Because the mode of steam insulation by jacket steam injection and steam injection by multiple times of vacuum pumping is adopted, the generation of steam condensate water in the wastewater collection tank is greatly reduced, and the temperature in the tank can be quickly raised to the disinfection temperature. Meanwhile, in the cooling stage, soft water is injected into the jacket, so that the cooling can be rapidly realized. The invention greatly shortens the total time of maintaining the continuous wastewater treatment equipment in the biosafety laboratory and reduces the influence on scientific research activities by the synergistic effect of three technical means of jacket heat preservation, cavity vacuumizing and soft water cooling.

Description

Continuous wastewater collection device capable of being rapidly sterilized and used for wastewater treatment and sterilization method thereof

Technical Field

The invention belongs to the technical field of wastewater treatment equipment, and particularly relates to a rapid-disinfection continuous wastewater collection device for wastewater treatment and a disinfection method thereof.

Background

At present, the waste water generated by a biological safety laboratory is mainly treated in a continuous mode and a sequencing batch mode. The continuous wastewater treatment occupies a smaller area than the sequencing batch wastewater treatment, and is favored by partial small laboratories. The continuous wastewater treatment equipment heats wastewater in a pipeline to over 121 ℃ mainly in an electric heating or steam heating mode, and discharges the wastewater after heat preservation and sterilization. Because the system of the continuous wastewater treatment equipment is complex, the number of pipelines, valves and control parts is large, and the pipelines are in a high-temperature and high-pressure state for a long time, the equipment needs to be maintained at regular intervals, and the first work before maintenance is to disinfect the equipment.

In the prior art, a wastewater collection tank of a continuous wastewater treatment device is mainly a single-layer stainless steel tank, wastewater in the wastewater collection tank is sterilized and discharged before disinfection, then steam is directly introduced into the tank, and after the temperature is raised to be higher than 121 ℃, the temperature is maintained for 20 minutes or more, and the process is finished. However, because the single-layer stainless steel tank has good thermal conductivity, heat can be continuously dissipated, and air exists in the tank, condensed water can be continuously generated when the steam is injected into the tank in the process of cooling, so that the temperature rise process is slow. According to practical tests, a wastewater collection tank with the volume of 5 cubic meters needs 4-5 hours to heat to over 121 ℃ under the condition of continuously injecting 2.5bar of steam when the ambient temperature is 21 ℃. In addition, after the disinfection is finished, the cooling process is very slow, so that the equipment maintenance time is prolonged, and the development of laboratory scientific research activities is influenced.

In order to solve the above problems, we have proposed a wastewater collecting apparatus for continuous wastewater treatment which can be sterilized quickly and a method of sterilizing the same.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a continuous wastewater collection device for wastewater treatment and a disinfection method thereof.

In order to achieve the technical purpose, the inventor combines the working experience of biological safety laboratories for many years, and through diligent trial and multi-directional exploration and research, finally creatively introduces a jacket mechanism into a wastewater collection tank, injects steam into the jacket of the wastewater collection tank for heat preservation, repeatedly vacuumizes the inner cavity of the wastewater collection tank through a vacuum pump, and then injects the steam, so that the generation of steam condensate water is reduced to the maximum extent, the temperature in the wastewater collection tank can be rapidly heated to more than 121 ℃, the temperature can be maintained for more than 20 minutes, and the disinfection is completed. Meanwhile, in the cooling stage, soft water is injected into the jacket, so that the cooling can be realized quickly, the time for maintaining equipment is effectively reduced, and the influence on scientific research activities is reduced.

The technical purpose of the invention is realized according to the following technical scheme:

a rapid-disinfection continuous wastewater collection device for wastewater treatment comprises a wastewater collection tank, a breathing pipeline and a vacuum pump, wherein the wastewater collection tank is a pressure container with a double-layer structure, and the outer layer of the wastewater collection tank is a jacket;

the jacket is respectively connected with a first valve, a ninth valve and a tenth valve through pipelines, the other end of the first valve is connected with a soft water pipeline, the other end of the ninth valve is connected with a steam pipeline, the other end of the tenth valve is respectively connected with one end of a drain valve and one end of a eleventh valve, the other end of the drain valve is a condensed water outlet, and the other end of the eleventh valve is a steam outlet; a temperature sensor III and a pressure sensor II are arranged in the jacket;

the inner-layer cavity of the wastewater collection tank is respectively connected with a second valve, a third valve, a seventh valve and an eighth valve through pipelines, the other end of the second valve is connected with a wastewater pipeline, the other end of the third valve is connected with the breathing pipeline, the other end of the seventh valve is connected with a wastewater inactivation pipeline, and the other end of the eighth valve is connected with a steam pipeline; a first pressure sensor, a first temperature sensor and a second temperature sensor are also arranged in an inner cavity of the wastewater collection tank, and the first temperature sensor and the second temperature sensor are respectively positioned at the lower part and the upper part of the wastewater collection tank;

first high efficiency filter and second high efficiency filter are installed to the last series connection of breathing pipe, the exit end of second high efficiency filter passes through the pipeline and links to each other with valve four, valve five, valve six respectively, the other end and the steam conduit of valve four are connected, the other end of valve five is breathing pipe's blow vent, the other end and the vacuum pump connection of valve six.

It should be noted that the inactivation pipeline of wastewater in the continuous wastewater collection device for wastewater treatment, which can be rapidly sterilized, may be any inactivation pipeline disclosed in the prior art, and may include a pressure pump, a heater, an insulation coil, a cooler, a thermometer, a pressure gauge, a heat exchanger, a flow meter, and various valves, but at least includes a pressure pump, a heater, an insulation coil, and a cooler. In addition, the first pressure sensor can measure the pressure of the inner cavity of the wastewater collection tank, the second pressure sensor can measure the pressure in the outer jacket of the wastewater collection tank, the first temperature sensor can measure the temperature at the bottom of the inner cavity of the wastewater collection tank, the second temperature sensor can measure the temperature in the upper space of the inner cavity of the wastewater collection tank, the third temperature sensor can measure the temperature in the jacket of the wastewater collection tank, and the vacuum pump can pump the pressure of the inner cavity of the wastewater collection tank to be below-0.5 bar.

Further preferably, the wastewater collecting device for continuous wastewater treatment capable of being rapidly sterilized as described above, wherein the first valve, the second valve and the third valve are respectively connected with the upper part of the inner cavity of the wastewater collecting tank through a pipeline, the seventh valve and the eighth valve are respectively connected with the lower part of the inner cavity of the wastewater collecting tank 1 through a pipeline, and the ninth valve and the tenth valve are respectively connected with the lower part of the jacket through a pipeline.

Further preferably, the wastewater collecting apparatus for continuous wastewater treatment which can be rapidly sterilized as described above, wherein the trap can discharge the condensed water without leaking the steam.

Further preferably, the wastewater collecting apparatus for continuous wastewater treatment, which is capable of rapid sterilization as described above, wherein the first high efficiency filter and the second high efficiency filter are capable of filtering particles and bacteria of 0.2 μm or more, thereby preventing leakage of pathogens from the wastewater collecting tank.

Further preferably, the wastewater collecting device for continuous wastewater treatment, which can be rapidly sterilized as described above, wherein the condensed water outlet at the other end of the drain valve and the steam outlet at the other end of the valve eleven are connected to form the same outlet through a pipeline.

Further preferably, the wastewater collecting device for continuous wastewater treatment capable of being rapidly sterilized further comprises a computer control system, and the first pressure sensor, the second pressure sensor, the first temperature sensor, the second temperature sensor, the third temperature sensor, the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, the seventh valve, the eighth valve, the ninth valve, the tenth valve and the eleventh valve are respectively connected with the computer control system through circuits.

In addition, the invention also provides a disinfection method of the wastewater collection device for continuous wastewater treatment, which comprises the following steps:

step one, opening a valve seventh, and discharging the wastewater in the wastewater collection tank after the wastewater in the wastewater collection tank is sterilized through a wastewater inactivation pipeline;

step two, after the wastewater in the wastewater collection tank is treated or a small amount of wastewater remains and the wastewater inactivation pipeline is disinfected, disinfecting the wastewater collection device;

step three, closing a valve I, a valve II, a valve III, a valve IV, a valve V, a valve VI, a valve VII, a valve VIII and a valve XI, opening a valve nine and a valve Ten, injecting steam into the jacket from a pipeline connected with the valve nine, controlling the opening and closing of the valve nine through the numerical value of a pressure sensor II, keeping the steam at 1.45-1.55bar, and discharging condensed water generated in the jacket from a drain valve;

step four, opening a valve III and a valve VI, starting a vacuum pump, vacuumizing the inner cavity of the wastewater collection tank, closing the valve VI and opening the valve IV when the numerical value of the pressure sensor I is gradually reduced to be lower than-0.5 bar, injecting steam into the inner cavity of the wastewater collection tank, closing the valve IV again when the numerical value of the pressure sensor I is restored to be lower than-0.05-0.05 bar, opening the valve VI, continuously vacuumizing to be lower than-0.5 bar, and repeatedly vacuumizing for 2-4 times;

step five, after the operations are completed, opening the valve eight and the valve four, closing the valve six, stopping the vacuum pump, and simultaneously injecting steam from the upper part and the lower part of the wastewater collection tank through steam pipelines connected with the valve eight and the valve four; when the temperature of the first temperature sensor and the temperature of the second temperature sensor reach more than 125 ℃, closing the valve eight and the valve four, simultaneously opening the valve four for 4-6 seconds every 28-32 seconds, ensuring the numerical values of the first temperature sensor and the second temperature sensor to be more than 121 ℃, keeping for 20-25 minutes, and finishing the disinfection;

and step six, closing the valve nine and the valve IV, stopping injecting steam into the inner-layer cavities of the jacket and the wastewater collection tank, opening the valve eleven and the valve ten, discharging the steam in the jacket, opening the valve I, closing the valve eleven, injecting soft water into the jacket, monitoring the water temperature in the jacket through the temperature sensor III, opening the valve eleven and discharging the water in the jacket when the water temperature is higher than or equal to 50 ℃, and ending the cooling process until the temperature of the temperature sensor I is lower than 50 ℃, and closing the valve ten and the valve I.

Further preferably, the method for sterilizing a wastewater collection device for continuous wastewater treatment as described above, wherein when the soft water is injected into the jacket in the sixth step, the water pressure of the soft water is 1.3 to 1.7bar, and still further preferably the water pressure of the soft water is 1.5 bar.

Compared with the prior art, the continuous wastewater collecting device for wastewater treatment and the disinfection method thereof have the following advantages and remarkable progress:

(1) steam is injected into the jacket of the waste water collecting tank, so that heat loss of the inner layer cavity of the waste water collecting tank can be reduced, steam condensate water in the inner layer cavity is greatly reduced, and the whole process is heated more quickly.

(2) The inner layer cavity of the wastewater collection tank is repeatedly vacuumized by the vacuum pump to remove air, so that the generation of condensed water is further reduced, and the temperature rise in the cavity is faster. Meanwhile, the double-layer filter is used for protection, so that the pathogen is prevented from leaking.

(3) In the cooling stage after the high-temperature disinfection is finished, soft water is injected into the jacket of the waste water collecting tank, so that the equipment can be cooled in a short time.

(4) The invention can shorten the disinfection time of the wastewater collecting device to the maximum extent through the synergistic effect of three technical means of jacket heat preservation, cavity vacuumizing and soft water cooling, effectively reduces the total time of continuous wastewater treatment equipment maintenance of a biological safety laboratory, strives for time for the operation of the laboratory, and reduces the influence of equipment maintenance on scientific research activities.

Drawings

FIG. 1 is a schematic view showing the construction of a wastewater collecting apparatus for continuous wastewater treatment according to the present invention;

in the figure: 1. a wastewater collection tank; 2. a first valve; 3. a second valve; 4. a third valve; 5. a first high-efficiency filter 6 and a second high-efficiency filter; 7. a fourth valve; 8. a fifth valve; 9. a sixth valve; 10. a first pressure sensor; 11. a vacuum pump; 12. a pressure pump; 13. a heater; 14. a heat preservation coil pipe; 15. a cooler; 16. a seventh valve; 17. a valve eighth; 18. a ninth valve; 19. a first temperature sensor; 20. a drain valve; 21. a valve eleven; 22. a valve ten; 23. a third temperature sensor; 24. a second pressure sensor; 25. a second temperature sensor; 26. a jacket; 27. a breathing conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

the utility model provides a continuous type waste water collection device for waste water treatment that can disinfect fast, the device includes that the waste water of area clamp cover collects jar, temperature sensor, pressure sensor, takes respiratory tube, vacuum pump etc. of dual high efficiency filter.

Referring to fig. 1, a wastewater collection tank 1 is a stainless steel pressure vessel with a double-layer structure, the outer layer of the wastewater collection tank is a jacket 26, and the jacket is respectively connected with a valve I2, a valve II 18 and a valve III 22 through pipelines; the other end of the first valve 2 is connected to a soft water pipe, and soft water can be injected into the jacket 26 when the first valve 2 is opened; the other end of the valve nine 18 is connected to a steam pipe, and when the valve nine 18 is opened, steam can be injected into the jacket 26; the other end of the valve ten 22 is respectively connected with one end of the drain valve 20 and one end of the valve eleven 21, and the drain valve 20 can discharge condensed water without leaking steam; the other end of the drain valve 20 is a condensed water outlet, and the other end of the valve eleven 21 is a steam outlet; in order to save pipelines and space, a condensed water outlet at the other end of the trap 20 and a steam outlet at the other end of the valve eleven 21 are connected into the same outlet through pipelines. In addition, a third temperature sensor 23 and a second pressure sensor 24 are arranged in the jacket 26, the third temperature sensor 23 can measure the temperature in the jacket 26 on the outer layer of the waste water collecting tank 1, and the second pressure sensor 24 can measure the pressure in the jacket 26 on the outer layer of the waste water collecting tank 1.

In addition, the inner cavity of the waste water collecting tank 1 is respectively connected with a valve II 3, a valve III 4, a valve VII 16 and a valve VIII 17 through pipelines; the other end of the second valve 3 is connected with a waste water pipeline, and when the second valve 3 is opened, the waste water to be treated can be injected into the waste water collecting tank 1; the other end of the valve III 4 is connected with a breathing pipeline 27, and when the valve III 4 is opened, the waste water collecting tank 1 can balance the internal and external pressure through the breathing pipeline, for example, waste water or steam can be smoothly injected into the waste water collecting tank 1; the other end of the valve seven 16 is connected with a wastewater inactivation pipeline, the wastewater inactivation pipeline can inactivate wastewater, and the wastewater inactivation pipeline generally comprises a booster pump, a heater, a heat preservation coil pipe, a cooler, a thermometer, a pressure gauge, a heat exchanger, a flowmeter and various valves, but at least comprises a booster pump 12, a heater 13, a heat preservation coil pipe 14 and a cooler 15; when the seventh valve 16 is opened, the wastewater in the wastewater collection tank 1 is injected into the sterilization pipeline through the pressure pump 12, heated to an inactivation temperature (134 ℃ and above) by the heater 13 (electrical heating or steam heating), kept warm in the storage tray 14 for 20 minutes (the storage tray is kept long enough to allow the wastewater to flow through it for 20 minutes and above), and finally cooled by the cooler 15 and discharged. In addition, the other end of the valve eight 17 is connected with a steam pipeline; when valve eight 17 is opened, high pressure steam may be injected into the inner cavity from the bottom of the waste water collecting tank 1. Still be provided with pressure sensor 10, temperature sensor 19 and temperature sensor two 25 in the inlayer cavity of waste water collection tank 1, pressure sensor 10 can measure the pressure of waste water collection tank inlayer cavity, and temperature sensor 25 and temperature sensor two 19 are located the upper portion and the lower part of waste water collection tank 1 respectively, and temperature sensor 19 can measure the temperature of waste water collection tank inlayer cavity bottom, and temperature sensor two 25 can measure the temperature in waste water collection tank inlayer cavity upper portion space.

The invention also designs a breathing pipeline 27 which can be vacuumized and inject steam from the tank top, a first high-efficiency filter 5 and a second high-efficiency filter 6 are installed on the breathing pipeline in series, the first high-efficiency filter 5 and the second high-efficiency filter 6 can filter particles and bacteria with the particle size of more than 0.2 mu m, and the outlet end of the second high-efficiency filter 6 is respectively connected with a valve IV 7, a valve V8 and a valve VI 9 through pipelines; the other end of the valve IV 7 is connected with a steam pipeline, and when the valve IV 7 is opened, high-pressure steam can be injected into the inner-layer cavity from the top of the wastewater collecting pipe; the other end of the valve V8 is a vent of the breathing pipeline 27, so that the internal pressure and the external pressure can be balanced; the other end of the valve six 9 is connected with a vacuum pump 11, and the pressure of the inner layer cavity of the waste water collecting tank can be pumped to be lower than-0.5 bar after the vacuum pump 11 is started.

Further carry out the optimal design to continuous type waste water collection device for waste water treatment's structure, valve one 2, valve two 3 and valve three 4 are connected with the upper portion of waste water collecting tank 1 inlayer cavity through the pipeline respectively, and valve seven 16 and valve eight 17 are connected with the sub-unit of waste water collecting tank 1 inlayer cavity through the pipeline respectively, and valve nine 18 and valve ten 22 are connected with the sub-unit that presss from both sides cover 26 through the pipeline respectively.

The structure of the wastewater collecting device for continuous wastewater treatment is further optimized, the device also comprises a computer control system, wherein the first valve 2, the second valve 3, the third valve 4, the fourth valve 7, the fifth valve 8, the sixth valve 9, the seventh valve 16, the eighth valve 1, the ninth valve 18, the tenth valve 22 and the eleventh valve 21 are all electromagnetic valves, and the first pressure sensor 10, the second pressure sensor 24, the first temperature sensor 19, the second temperature sensor 25, the third temperature sensor 23, the first valve 2, the second valve 3, the third valve 4, the fourth valve 7, the fifth valve 8, the sixth valve 9, the seventh valve 16, the eighth valve 1, the ninth valve 18, the tenth valve 22 and the eleventh valve 21 are respectively connected with the computer control system through circuits.

Example two:

referring to fig. 1, a method for rapidly sterilizing a wastewater collecting device for continuous wastewater treatment, comprising the steps of:

injecting the wastewater in the wastewater collection tank 1 into an inactivation pipeline through a pressure pump 12, heating to an inactivation temperature (134 ℃ and above) through a heater 13 (electric heating or steam heating), preserving the temperature in a coil tray 14 for 20 minutes (the coil tray is kept long enough to ensure that the time for the wastewater to flow through the coil tray is 20 minutes and above), and finally cooling through a cooler 15 and discharging.

And step two, after the wastewater in the wastewater collection tank 1 is treated or a small amount of wastewater remains and the inactivation pipeline (including the pipeline connected with the heater and the coil pipe of the protection disc) is disinfected, disinfecting the wastewater collection device.

Step three, closing the valve I2, the valve II 3, the valve III 4, the valve IV 7, the valve V8, the valve VI 9, the valve VII 16, the valve VIII 17 and the valve IV 21, opening the valve nine 18 and the valve VIII 22, injecting steam into a jacket 26 of the wastewater collection tank 1 from a pipeline connected with the valve nine 18, controlling the opening and closing of the valve nine 18 through the value of a pressure sensor II 24, keeping the steam at about 1.5bar, and discharging condensed water from a drain valve 20.

And step four, opening a valve III 4 and a valve VI 9, starting a vacuum pump 11, vacuumizing the inner cavity of the wastewater collection tank 1, closing the valve VI 9 when the numerical value of the pressure sensor I10 gradually decreases to-0.5 bar, opening a valve IV 7, and injecting steam into the inner cavity of the wastewater collection tank 1. When the value of the first pressure sensor 10 is restored to 0bar, the valve IV 7 is closed, the valve VI 9 is opened, the vacuum pumping is continued, and the vacuum pumping is repeated for 3 times.

And step five, after the operations are completed, opening the valve eight 17 and the valve four 7, closing the valve six 9, stopping the vacuum pump I11, and simultaneously injecting steam from the upper part and the lower part of the wastewater collection tank 1 through a steam pipeline connected with the valve eight 17 and the valve four 7. After the temperature sensor I19 and the temperature sensor II 25 both reach above 125 ℃, the valve eight 17 and the valve four 7 are closed, and the valve four 7 are opened every 30 seconds (the time can be adjusted), so that the values of the temperature sensor I19 and the temperature sensor II 25 are ensured to be above 121 ℃, and the sterilization is finished after the temperature sensor I19 and the temperature sensor II 25 are kept for 20 minutes.

And step six, closing the valve nine 18 and the valve four 7, and stopping injecting the steam into the jacket and the inner-layer cavity of the wastewater collection tank 1. Opening a valve eleven 21 and a valve eleven 22, discharging steam in a jacket of the waste water collecting tank 1, opening a valve I2, closing the valve eleven 21, injecting soft water (the water pressure of the soft water is 1.5bar) into the jacket of the waste water collecting tank 1, monitoring the water temperature in the jacket through a temperature sensor III 23, opening the valve eleven 21 when the water temperature reaches 50 ℃, discharging the water in the jacket until the temperature value of the temperature sensor I19 is lower than 50 ℃, ending the cooling process, and closing the valve eleven 22 and the valve I2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A rapid-disinfection continuous wastewater collection device for wastewater treatment is characterized by comprising a wastewater collection tank (1), a breathing pipeline (27) and a vacuum pump (11), wherein the wastewater collection tank (1) is a pressure container with a double-layer structure, and the outer layer of the wastewater collection tank is a jacket (26);

the jacket (26) is respectively connected with a first valve (2), a ninth valve (18) and a tenth valve (22) through pipelines, the other end of the first valve (2) is connected with a soft water pipeline, the other end of the ninth valve (18) is connected with a steam pipeline, the other end of the tenth valve (22) is respectively connected with one end of a drain valve (20) and one end of a eleventh valve (21), the other end of the drain valve (20) is a condensed water outlet, and the other end of the eleventh valve (21) is a steam outlet; a temperature sensor III (23) and a pressure sensor II (24) are arranged in the jacket (26);

the inner-layer cavity of the wastewater collection tank (1) is respectively connected with a second valve (3), a third valve (4), a seventh valve (16) and an eighth valve (17) through pipelines, the other end of the second valve (3) is connected with a wastewater pipeline, the other end of the third valve (4) is connected with the breathing pipeline (27), the other end of the seventh valve (16) is connected with a wastewater inactivation pipeline, and the other end of the eighth valve (17) is connected with a steam pipeline; a first pressure sensor (10), a first temperature sensor (19) and a second temperature sensor (25) are further arranged in an inner cavity of the wastewater collection tank (1), and the first temperature sensor (19) and the second temperature sensor (25) are respectively positioned at the lower part and the upper part of the wastewater collection tank (1);

first high efficiency filter (5) and second high efficiency filter (6) are installed to the last series connection of breathing pipe way (27), the exit end of second high efficiency filter (6) passes through the pipeline and links to each other with valve four (7), valve five (8), valve six (9) respectively, the other end and the steam conduit of valve four (7) are connected, the other end of valve five (8) does the blow vent of breathing pipe way (27), the other end and the vacuum pump (11) of valve six (9) are connected.

2. A rapid sterilizable continuous wastewater collection apparatus for wastewater treatment according to claim 1, wherein the wastewater inactivation pipe comprises a pressurization pump (12), a heater (13), a thermal insulation coil (14), and a cooler (15).

3. The wastewater collecting apparatus for continuous wastewater treatment capable of being rapidly sterilized according to claim 1, wherein the first valve (2), the second valve (3) and the third valve (4) are respectively connected with the upper part of the inner cavity of the wastewater collecting tank (1) through pipes, the seventh valve (16) and the eighth valve (17) are respectively connected with the lower part of the inner cavity of the wastewater collecting tank (1) through pipes, and the ninth valve (18) and the tenth valve (22) are respectively connected with the lower part of the jacket (26) through pipes.

4. The wastewater collection apparatus for continuous wastewater treatment capable of being rapidly sterilized according to claim 1, wherein the first pressure sensor (10) is capable of measuring the pressure of the inner cavity of the wastewater collection tank (1), and the second pressure sensor (24) is capable of measuring the pressure of the outer jacket (26) of the wastewater collection tank (1); the temperature of waste water collection tank (1) inlayer cavity bottom can be measured to temperature sensor (19), the temperature of waste water collection tank (1) inlayer cavity upper portion can be measured to temperature sensor two (25), the temperature in waste water collection tank (1) outer jacket (26) can be measured to temperature sensor three (23).

5. A rapid sterilizable continuous wastewater collection apparatus for wastewater treatment according to claim 1, wherein the trap (20) can discharge condensed water without leaking steam.

6. The wastewater collection apparatus for continuous wastewater treatment capable of rapid sterilization according to claim 1, wherein the first high-efficiency filter (5) and the second high-efficiency filter (6) can filter particles and bacteria of 0.2 μm or more.

7. A rapid sterilizable continuous wastewater collection apparatus for wastewater treatment according to claim 1, wherein the condensed water outlet at the other end of the trap (20) and the steam outlet at the other end of the valve eleven (21) are connected by a pipe to form the same outlet.

8. The wastewater collection device for continuous wastewater treatment capable of being rapidly sterilized according to any one of claims 1 to 7, further comprising a computer control system, wherein the first pressure sensor (10), the second pressure sensor (24), the first temperature sensor (19), the second temperature sensor (25), the third temperature sensor (23), the first valve (2), the second valve (3), the third valve (4), the fourth valve (7), the fifth valve (8), the sixth valve (9), the seventh valve (16), the eighth valve (17), the ninth valve (18), the tenth valve (22) and the eleventh valve (21) are respectively connected with the computer control system through circuits.

9. A method for sterilizing a wastewater collection apparatus for continuous wastewater treatment according to claim 1, comprising the steps of:

step one, opening a valve seven (16), and discharging the wastewater in the wastewater collection tank (1) after the wastewater is sterilized through a wastewater inactivation pipeline;

step two, after the wastewater in the wastewater collection tank (1) is treated or a small amount of wastewater remains, and the wastewater inactivation pipeline is disinfected, the wastewater collection device (1) is disinfected;

step three, closing a valve I (2), a valve II (3), a valve III (4), a valve IV (7), a valve V (8), a valve VI (9), a valve VII (16), a valve VIII (17) and a valve XI (21), opening a valve nine (18) and a valve XI (22), injecting steam into a jacket (26) from a pipeline connected with the valve nine (18), controlling the opening and closing of the valve nine (18) through the value of a pressure sensor II (24) to maintain the steam at 1.45-1.55bar, and discharging condensed water generated in the jacket (26) from a drain valve (20);

step four, opening a valve III (4) and a valve VI (9), starting a vacuum pump (11), vacuumizing an inner cavity of the wastewater collection tank (1), closing the valve VI (9) when the numerical value of the pressure sensor I (10) gradually decreases to be lower than-0.5 bar, opening a valve IV (7), injecting steam into the inner cavity of the wastewater collection tank (1), closing the valve IV (7) when the numerical value of the pressure sensor I (10) returns to be-0.05-0.05 bar, opening the valve VI (9), continuously vacuumizing to be lower than-0.5 bar, and repeatedly vacuumizing for 2-4 times;

step five, opening a valve eight (17) and a valve four (7), closing a valve six (9), stopping the vacuum pump (11), and simultaneously injecting steam from the upper part and the lower part of the wastewater collection tank (1) through a steam pipeline connected with the valve eight (17) and the valve four (7); when the temperature sensor I (19) and the temperature sensor II (25) reach more than 125 ℃, closing the valve eight (17) and the valve four (7), and simultaneously opening the valve four (7) for 4-6 seconds every 28-32 seconds, so as to ensure that the values of the temperature sensor I (19) and the temperature sensor II (25) are more than 121 ℃, keeping for 20-25 minutes, and finishing the disinfection;

and step six, closing the valves nine (18) and four (7), stopping injecting steam into the jacket (26) and the inner-layer cavity of the wastewater collection tank (1), opening the valves eleven (21) and ten (22), discharging the steam in the jacket (26), opening the valve I (2), closing the valve eleven (21), injecting soft water into the jacket (26), monitoring the water temperature in the jacket through the temperature sensor III (23), opening the valve eleven (21) and discharging the water in the jacket (26) when the water temperature is higher than or equal to 50 ℃, ending the cooling process until the temperature of the temperature sensor I (19) is lower than 50 ℃, and closing the valves ten (22) and one (2).

10. The method for disinfecting a wastewater collection means for the continuous treatment of wastewater according to claim 8, wherein when the soft water is injected into the jacket (26) in the sixth step, the water pressure of the soft water is 1.3 to 1.7 bar.