A double-barrel biological inactivation system

Abstract

The utility model discloses a double-barrel biological inactivation system, which belongs to a waste liquid treatment device. The utility model includes a wastewater collection tank, a wastewater inlet pipe, a steam inlet pipe, a cooling water inlet pipe, a cooling water outlet pipe, a wastewater outlet pipe, a drainage point, a first inactivation tank, and a second inactivation tank. The first inactivation tank and the second inactivation tank are both provided with a liquid level gauge, a temperature sensor, a mechanical temperature controller, a wastewater inlet, a wastewater outlet, a steam inlet, a cooling water inlet, and a cooling water outlet. The system provided by the utility model is fully automatic and can be switched between manual and automatic. When running automatically, the system can work automatically according to the set process. The process flow includes wastewater inlet, water inlet stop, temperature rise, inactivation timing, inactivation completion, cooling and discharging wastewater, inactivation completion, etc. When switched to manual operation, the user can operate by himself; the utility model can quickly and efficiently complete the heating inactivation.

Description

Technical Field

[0001] The utility model relates to a waste liquid treatment device, in particular to a double-barrel biological inactivation system. Background Art

[0002] For biopharmaceutical companies, biological and toxic wastewater is usually discharged during the production process. These wastewaters may contain or potentially contain pathogenic microorganisms, such as bacteria, viruses, fungi, parasites, etc., which are very harmful and need to be inactivated before being discharged into the sewage treatment system and discharged after centralized treatment.

[0003] Biological wastewater is usually sterilized by physical thermal methods. High temperature has a significant lethal effect on microorganisms. Most viruses and bacteria can be killed by heating at 90 to 120°C for about 30 minutes.

[0004] Industrial steam is directly introduced into the live poison wastewater, and the high temperature is used to denature or coagulate the bacteria, and the enzyme loses its activity, thereby killing the bacteria; and the chemical bonds in the DNA and RNA of the virus absorb heat at high temperatures, causing the bonds to break, thereby inactivating the virus. The chemical structures of proteins, nucleic acids, etc. are connected by hydrogen bonds, which are relatively weak. When the bacteria are heated, the hydrogen bonds are easily destroyed, and the structures of proteins, nucleic acids, etc. are also destroyed, losing their biological activity, thus causing the bacteria to die. In addition, high temperatures can also cause the loss of cell membrane function, causing small molecules and degraded ribosomes to leak out. Utility Model Content

[0005] The utility model aims to provide a double-barrel biological inactivation system.

[0006] The technical scheme of the utility model is: a double-barrel biological inactivation system, comprising a wastewater collection tank, a wastewater inlet pipe, a steam inlet pipe, a cooling water inlet pipe, a cooling water outlet pipe, a wastewater outlet pipe, a drainage point, a first inactivation tank, and a second inactivation tank. The first inactivation tank and the second inactivation tank are both provided with a liquid level gauge, a temperature sensor, a mechanical temperature controller, a wastewater inlet arranged at the top, a wastewater outlet arranged at the bottom, a steam inlet arranged at one side of the wastewater inlet, a cooling water inlet and a cooling water outlet. The wastewater inlet is communicated with the wastewater collection tank via the wastewater inlet pipe. A wastewater lifting pump is provided at the end of the wastewater inlet pipe located in the wastewater collection tank, a liquid inlet control valve is provided between the wastewater inlet pipe and the wastewater inlet, the steam inlets are respectively connected to the steam inlet pipes, a steam control valve is provided between the steam inlet and the steam inlet pipe, the cooling water inlets are respectively connected to the cooling water inlet pipes, a cooling water control valve is provided between the cooling water inlet and the cooling water inlet pipe, the cooling water outlet pipes are respectively connected to the cooling water outlet pipes, the wastewater outlets are respectively connected to the drainage points via the wastewater outlet pipes, and an outlet control valve and a drainage pump are provided between the wastewater outlet and the wastewater outlet pipe.

[0007] According to a further technical solution, the inactivation system also includes an electric control cabinet, which is electrically connected to a liquid level meter, a temperature sensor, a mechanical temperature controller, a wastewater lift pump, a liquid inlet control valve, a steam control valve, a cooling water control valve, and a water outlet control valve.

[0008] According to a further technical solution, a vent is provided on the top of the wastewater collection tank, and a vent valve is provided at the vent.

[0009] According to a further technical solution, a cooling heat exchange pipe is provided between the cooling water inlet pipe and the cooling water outlet pipe.

[0010] Beneficial effects of the utility model:

[0011] The system provided by the utility model is fully automatic and can be switched between manual and automatic. When in automatic operation, the system can work automatically according to the set process. The process flow includes wastewater intake, water intake stop, temperature rise, inactivation timing, inactivation completion, cooling and discharge of wastewater, inactivation completion, etc. When switched to manual operation, the user can operate by himself; there is liquid level control when wastewater is inlet, and it stops automatically after reaching a certain liquid level. The liquid level can be set in the operation interface. High and low liquid level alarms will be set during manual operation to ensure the normal operation of the equipment.

[0012] During inactivation, steam is introduced into the tank and heated by a steam-water mixture using a steam ejector. The steam use point is equipped with a steam trap and can be manually controlled. When the inactivation temperature is reached, the insulation program begins. At this time, steam is intermittently passed to play a role in insulation. At the same time, the uniform heat transfer effect of the steam ejector in the tank can quickly and efficiently complete the heating inactivation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model.

[0014] Among them, 1. wastewater collection tank, 2. wastewater inlet pipe, 3. steam inlet pipe, 4. cooling water inlet pipe, 5. cooling water outlet pipe, 6. wastewater outlet pipe, 7. drainage point, 8. first inactivation tank, 9. second inactivation tank, 10. liquid level meter, 11. temperature sensor, 12. mechanical temperature controller, 13. wastewater inlet, 14. wastewater lifting pump, 15. liquid inlet control valve, 16. steam inlet, 17. steam control valve, 18. cooling water inlet, 19. cooling water control valve, 20. wastewater outlet, 21. outlet control valve, 22. drainage pump, 23. electric control cabinet, 24. air valve, 25. cooling and heat exchange pipe. DETAILED DESCRIPTION

[0015] The present invention is further described and understood by way of non-limiting examples below.

[0016] like Figure 1 As shown, the utility model provides a double-barrel biological inactivation system.

[0017] It includes an electric control cabinet 23, a wastewater collection tank 1, a wastewater inlet pipe 2, a steam inlet pipe 3, a cooling water inlet pipe 4, a cooling water outlet pipe 5, a wastewater outlet pipe 6, a drainage point 7, a first inactivation tank 8, and a second inactivation tank 9.

[0018] The first inactivation tank 8 and the second inactivation tank 9 are both provided with a liquid level gauge 10, a temperature sensor 11, a mechanical temperature controller 12, a vent at the top, a wastewater inlet 13, a wastewater outlet 20 at the bottom, a steam inlet 16, a cooling water inlet 18 and a cooling water outlet arranged on one side of the wastewater inlet 13, the liquid level gauge 10 is a magnetic flap level gauge, the wastewater inlet 13 is connected to the wastewater collection tank 1 through a wastewater inlet pipe 2, a wastewater lifting pump 14 is arranged at the end of the wastewater inlet pipe 2 located at the wastewater collection tank 1, the steam inlet 16 is connected to the steam inlet pipe 3, the cooling water inlet 18 is connected to the cooling water inlet pipe 4, the cooling water outlet pipe 5 is connected to the cooling water outlet pipe 5, and a cooling heat exchange pipe 25 is arranged between the cooling water inlet pipe 4 and the cooling water outlet pipe 5. The wastewater outlet 20 is connected to the drainage point 7 through the wastewater outlet pipe 6.

[0019] A ventilation valve 24 is provided at the ventilation port of the inactivation tank, a liquid inlet control valve 15 is provided between the wastewater inlet pipe 2 and the wastewater inlet port 13, a steam control valve 17 is provided between the steam inlet port 16 and the steam inlet pipe 3, a cooling water control valve 19 is provided between the cooling water inlet port 18 and the cooling water inlet pipe 4, and a water outlet control valve 21 and a drainage pump 22 are provided between the wastewater outlet 20 and the wastewater outlet pipe 6.

[0020] A ventilation valve E1 is provided at the ventilation port of the first inactivation tank 8, a liquid inlet control valve A1 is provided between the wastewater inlet pipe 2 and the wastewater inlet 13, a steam control valve B1 is provided between the steam inlet 16 and the steam inlet pipe 3, a cooling water control valve C1 is provided between the cooling water inlet 18 and the cooling water inlet pipe 4, and a water outlet control valve D1 and a drainage pump A are provided between the wastewater outlet 20 and the wastewater outlet pipe 6.

[0021] A ventilation valve E2 is provided at the ventilation port of the second inactivation tank 9, a liquid inlet control valve A2 is provided between the wastewater inlet pipe 2 and the wastewater inlet 13, a steam control valve B2 is provided between the steam inlet 16 and the steam inlet pipe 3, a cooling water control valve C2 is provided between the cooling water inlet 18 and the cooling water inlet pipe 4, and a water outlet control valve D2 and a drainage pump B are provided between the wastewater outlet 20 and the wastewater outlet pipe 6.

[0022] The electric control cabinet 23 is connected with the liquid level meter 10, the temperature sensor 11, the mechanical temperature controller 12, the wastewater lifting pump 14, the liquid inlet control valve A1 / A2, the steam control valve B1 / B2, the cooling water control valve C1 / C2, the water outlet control valve D1 / D2, and the drainage pump A / B.

[0023] The system provided by the utility model is a fully automatic control system and can be switched between manual and automatic.

[0024] When running automatically, the system can work independently according to the set process. The process flow includes wastewater intake, water intake stop, temperature increase, inactivation timing, inactivation completion, pressure relief, temperature reduction, cooling and discharge of wastewater, and inactivation completion.

[0025] When switching to manual operation, the user can operate each control valve by himself. There is liquid level control when the wastewater is fed in. After the liquid level meter 10 detects the set liquid level, the liquid inlet control valve A1 / A2 is closed and the water inlet stops automatically. The set liquid level can be set on the operation interface of the electric control cabinet 23. During manual operation, the high and low liquid level alarms can be set through the liquid level meter 10 to ensure the normal operation of the equipment.

[0026] During inactivation, steam is introduced into the first inactivation tank 8 / the second inactivation tank 9, and heated by a steam-water mixture method using a steam ejector. The steam use point is equipped with a steam trap and can be manually controlled. When the inactivation temperature is reached, the insulation program begins. At this time, steam is intermittently passed to play a role in insulation. At the same time, the uniform heat transfer effect of the steam ejector in the tank body can quickly and efficiently complete the heating inactivation.

[0027] Taking the first inactivation tank 8 as an example, the following is described:

[0028] (1) Liquid inlet: The liquid inlet control valve A1 of the first inactivation tank 8 is opened, the wastewater lifting pump 14 in the wastewater collection tank 1 is started, and the biological and toxic wastewater enters the first inactivation tank 8 from the wastewater collection tank 1. When the set liquid level is reached, the liquid inlet control valve A1 is closed, and the first inactivation tank 8 enters a heating state; at this time, the biological and toxic wastewater can enter the wastewater collection tank 1 or continue to enter the second inactivation tank 9, and will not affect the work of the production workshop;

[0029] (2) Heating: Use a steam ejector to directly pass industrial steam into the first inactivation tank 8 or the second inactivation tank 9 through the steam inlet pipe 3. The biological wastewater is mixed with the rapid steam of the industrial steam and the temperature is quickly raised. The flow rate of the industrial steam can be calculated according to the volume of the biological wastewater and the heating conditions;

[0030] Industrial steam is directly introduced into the tank through a steam ejector to create a stirring effect, making the temperature of the biological wastewater uniform;

[0031] Furthermore, the steam-water mixer realizes the rapid mixing of industrial steam and biological wastewater in the pipeline;

[0032] Furthermore, a circulation pump can be provided in the inactivation tank to realize the circulation, stirring and transportation of biological and toxic wastewater.

[0033] In order to prevent incomplete inactivation of biological wastewater, the inactivation tank can be equipped with at least two temperature sensors 11 at different positions. When the temperature of the temperature sensors 11 in the inactivation tank reaches the inactivation temperature, the system starts timing and enters the inactivation program;

[0034] (3) Inactivation: When the temperature sensors 11 all reach the inactivation temperature, the heat preservation procedure begins, the steam control valve B1 opens, and steam is passed in batches through the steam inlet pipe 3 to maintain the temperature of the biological wastewater in the tank within the inactivation temperature range. At the same time, the uniform heat transfer effect of the steam ejector in the tank can quickly and efficiently complete the heating inactivation process. After the biological wastewater is continuously inactivated at the set temperature for a certain period of time, it enters the pressure relief procedure;

[0035] (4) Pressure relief: After the inactivation is completed, the air permeability valve E1 on the first inactivation tank 8 is opened, and the gas is discharged into the air circulation pipeline, reducing the pressure in the tank to normal pressure;

[0036] (5) Cooling: The cooling water control valve C1 is opened, and the wastewater is circulated and cooled in the first inactivation tank 8 through the cooling heat exchange pipe 25. When the temperature sensor 11 detects that the temperature of the wastewater in the first inactivation tank drops to 35° C. (the temperature is adjustable), the cooling is completed;

[0037] (6) Discharge: When the cooling process is completed, the water outlet control valve D1 and the drainage pump A are opened, and the wastewater is safely discharged to the drainage point 7 under the action of the drainage pump A, and is usually discharged into the wastewater pool for unified treatment.

[0038] In summary, this system can quickly and efficiently complete heating inactivation.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A double-barrel biological inactivation system, characterized in that: It includes a wastewater collection tank, a wastewater inlet pipe, a steam inlet pipe, a cooling water inlet pipe, a cooling water outlet pipe, a wastewater outlet pipe, a drainage point, a first inactivation tank, and a second inactivation tank. The first inactivation tank and the second inactivation tank are both provided with a liquid level gauge, a temperature sensor, a mechanical temperature controller, a wastewater inlet arranged at the top, a wastewater outlet arranged at the bottom, a steam inlet arranged on one side of the wastewater inlet, a cooling water inlet and a cooling water outlet. The wastewater inlet is connected to the wastewater collection tank through a wastewater inlet pipe, and the wastewater inlet pipe is located in the wastewater collection tank. A wastewater lifting pump is arranged at the end thereof, a liquid inlet control valve is arranged between the wastewater inlet pipe and the wastewater inlet, the steam inlet is respectively connected to the steam inlet pipe, a steam control valve is arranged between the steam inlet and the steam inlet pipe, the cooling water inlet is respectively connected to the cooling water inlet pipe, a cooling water control valve is arranged between the cooling water inlet and the cooling water inlet pipe, the cooling water outlet pipe is respectively connected to the cooling water outlet pipe, the wastewater outlet is respectively connected to the drainage point via the wastewater outlet pipe, and a water outlet control valve and a drainage pump are arranged between the wastewater outlet and the wastewater outlet pipe.

2. A double-barrel biological inactivation system according to claim 1, characterized in that: A vent is also provided on the top of the wastewater collection tank, and a vent valve is provided at the vent.

3. A double-barrel biological inactivation system according to claim 2, characterized in that: The inactivation system also includes an electric control cabinet, which is electrically connected to a liquid level meter, a temperature sensor, a mechanical temperature controller, a wastewater lift pump, a liquid inlet control valve, a cooling water control valve, a steam control valve, a water outlet control valve, and a drainage pump.

4. A double-barrel biological inactivation system according to claim 1, characterized in that: A cooling heat exchange pipe is arranged between the cooling water inlet pipe and the cooling water outlet pipe.

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