CN214735126U - Biological live-poison waste water thermal sterilization system - Google Patents
Biological live-poison waste water thermal sterilization system Download PDFInfo
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- CN214735126U CN214735126U CN202120551765.XU CN202120551765U CN214735126U CN 214735126 U CN214735126 U CN 214735126U CN 202120551765 U CN202120551765 U CN 202120551765U CN 214735126 U CN214735126 U CN 214735126U
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Abstract
The utility model discloses a biological live toxicity waste water thermal sterilization system, which comprises a waste water collecting tank, a sterilization tank, a water steam boiler, a water storage tank and a heat exchanger; the waste water collecting tank and the sterilizing tank are both storage tanks with jackets, and a waste water inlet of the sterilizing tank is communicated with a waste water outlet of the waste water collecting tank; the waste water outlet of the sterilization tank adopts a structure of discharging liquid on a through bottom pipe, and the outside of a drain pipe of the sterilization tank is connected to the water inlet of the heat exchanger; the steam inlet of the sterilization tank and the inlet of the jacket of the sterilization tank are connected with the air outlet of a steam boiler through a pipeline, and the temperature in the sterilization tank is increased by adopting a combined mode of direct steam heating and heat transfer of the dividing wall of the jacket for high-temperature sterilization; the heat exchanger cooling water outlet is connected to the jacket inlet of the waste water collecting tank, and the heat is transferred to the waste water collecting tank to preheat the waste water of the waste water collecting tank, so that the waste heat is recycled, and the energy consumption is reduced.
Description
Technical Field
The utility model belongs to biological safety field, concretely relates to biological live toxin waste water heating power sterilization system.
Background
The live toxic wastewater produced by biological laboratories and biopharmaceutical enterprises has strong biological infection hazard. The waste water is treated harmlessly and reaches the corresponding biological safety protection level (classified into four levels of BSL-1, BSL-2, BSL-3, BSL-4, ABSL-1, ABSL-2, ABSL-3 and ABSL-4) before being discharged. Thermal sterilization is a common harmless treatment means for live toxic wastewater. In the harmless treatment of the raw materials by utilizing thermal sterilization, the key technical contents are how to ensure that no leakage and no dead angle exist in the treatment and how to realize the effective utilization of energy.
Patent one (CN203820516U) discloses a sterilization technique for live toxic wastewater in a sterilization tank by using a stirring enhanced heat transfer method, which involves the sealing problem of stirring, and if the sealing is failed, the leakage of the live toxic waste is hidden; the second patent (CN28256) provides a jacket heat transfer type live toxic wastewater treatment method, wastewater is subjected to two-stage filtration before treatment, and a cold and hot fluid switching mode is adopted during sterilization and cooling, so that the possibility of leakage during pretreatment is increased, and the heat transfer efficiency and the heat utilization effect are reduced by simple jacket heat transfer and cold and hot fluid switching. Patent three (CN206126887U) discloses a technical scheme for waste heat utilization, in which waste heat of an inactivation tank is used to preheat the to-be-treated live toxic wastewater in a collection tank, so as to achieve a certain heat recovery effect, but in view of the fact that the heat conducting working medium is liquid, the heat transfer efficiency is low by adopting jacket in-phase heat transfer compared with phase change heat transfer, and in addition, a filter for breathing in the technology has no sterilization measure and condensed water anti-freezing measure for filtering a filter element. When the filter element is replaced, viruses and pathogenic microorganisms are easy to leak, and when the filter element is used in cold regions, the filter element is frozen to cause blockage. In the technology, the liquid outlet of the inactivation tank is arranged at the lower part of the tank body, so that a sterilization dead angle is possibly formed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a biological live toxin waste water heating power sterilization system, its mode that adopts direct hybrid heating and dividing wall type heat transfer combined action carries out heat transfer to the inactivation jar, has realized the purpose that the sterilization does not have dead angle and heat maximum recovery simultaneously.
The utility model discloses a realize through following technical scheme:
a biological live toxicity waste water thermal sterilization system comprises a waste water collecting tank, a sterilization tank, a water steam boiler, a water storage tank and a heat exchanger;
the waste water collecting tank is a storage tank with a jacket, and is provided with a waste water inlet, a compressed air inlet, a waste water outlet and an inlet and an outlet of the jacket;
the sterilization tank is a storage tank with a jacket, and is provided with a steam inlet, a wastewater outlet and an inlet and an outlet of the jacket, wherein the wastewater inlet of the sterilization tank is connected with the wastewater outlet of the wastewater collection tank through a pipeline; a wastewater outlet of the sterilization tank is arranged at the top of the sterilization tank, a drainage pipeline is arranged at the wastewater outlet, the bottom of the drainage pipeline extends to the bottom of the sterilization tank, and the drainage pipeline is externally connected to a water inlet of the heat exchanger; the steam inlet of the sterilization tank and the inlet of the jacket of the sterilization tank are connected with the air outlet of a steam boiler through a pipeline, and the temperature in the sterilization tank is increased by adopting a combined mode of direct steam heating and heat transfer of the dividing wall of the jacket for high-temperature sterilization; a cooling water outlet of the heat exchanger is connected to a jacket inlet of the wastewater collection tank through a pipeline, so that heat is transferred to the wastewater collection tank, and wastewater in the wastewater collection tank is preheated; the cooling water inlet of the heat exchanger is communicated with a water storage tank through a pipeline, and the water storage tank is also communicated with a jacket water outlet of the waste water collecting tank, a jacket water outlet of the sterilizing tank and a water inlet of a water steam boiler.
In above-mentioned technical scheme, all be provided with the breather valve formula filter on waste water collection tank and sterilization jar, the breather valve formula filter structure is: including filter cylinder shell, be provided with biological filter core in filter cylinder shell, filter cylinder shell's top is the gas outlet, the bottom is the air inlet, is provided with on filter cylinder shell and presss from both sides the cover, has steam inlet and export on pressing from both sides the cover, through letting in high-temperature steam in pressing from both sides the cover, realizes carrying out pasteurization to the filter to and heat the liquid of the condensation in the filter cylinder and volatilize, prevent to freeze and block up.
In the technical scheme, a first water pump is arranged on a pipeline between the water storage tank and a water inlet of the water steam boiler, and a second water pump is arranged on a pipeline between the water storage tank and a cooling water inlet of the heat exchanger.
In the technical scheme, the water outlet of the heat exchanger can be connected with a second heat exchanger to form secondary waste heat utilization, and warm water discharged from a cooling water outlet of the second heat exchanger is supplied to a required place.
In the technical scheme, the heating sleeves are arranged on the non-sterilized live-poison wastewater flowing pipeline, the inlet pipeline of the breather valve type filter and the inlet pipeline of the safety valve, the sleeve is provided with a steam inlet and a steam outlet, and high-temperature steam is introduced into the sleeve to realize high-temperature sterilization of the pipeline so as to avoid pipeline pollution.
In the technical scheme, a silencer and a water vapor distributor are arranged in a water vapor inlet of the sterilization tank.
In above-mentioned technical scheme, be provided with the filter in sterilization jar waste water import, the purpose is held back a small amount of solid sediment that probably exists in the waste water to cause the jam to pipeline valve when discharging sewage.
In the technical scheme, the wastewater collection tank and the sterilization tank are provided with auxiliary agent inlets for introducing auxiliary agents such as tap water or disinfectant into the tank.
In the technical scheme, necessary pressure, temperature and liquid level monitoring instruments are arranged on the waste water collecting tank and the sterilizing tank.
In the technical scheme, safety valves are further arranged on the wastewater collection tank and the sterilization tank, pressure is released when overpressure is accidentally generated, and the decompressed gas is filtered and sterilized through a breather valve filter.
The utility model discloses an advantage and beneficial effect do:
the sterilization tank of the utility model is a closed container, and the sealing parts of the rotary shaft are not easy to be revealed.
The utility model discloses a heat exchanger is cooling and heat recovery equipment of waste water after the deactivation, finishes the back when the sterilization, opens the waste water export of sterilization jar, and the nontoxic waste water of high temperature in the sterilization jar passes through water piping and gets into the heat exchanger, carries out heat exchange in the heat exchanger, makes the cooling water of heat transfer for the heat exchanger, and the cooling water export of heat exchanger is connected to through the pipeline the cover import that presss from both sides of waste water collecting tank gives waste water collecting tank with heat transfer, preheats waste water of waste water collecting tank to concentrate in the water storage tank of boiler, for the boiler improves hot water, thereby realizes waste heat recovery and utilizes, reduces the energy consumption.
The utility model is provided with the respiratory valve type filter on the wastewater collecting tank and the sterilizing tank, the respiratory valve type filter has five functions, one of which plays a role of communicating with the external environment during feeding and discharging; secondly, biologically filtering the discharged gas to intercept carrier dust of possible bacteria or viruses; thirdly, the intercepted microorganisms are sterilized on line; fourthly, heating and volatilizing the condensed liquid to prevent freezing and blocking so as to ensure the normal filtering function; fifthly, filtering and sterilizing the gas discharged by the safety valve.
4 the utility model discloses a sterilization jar's waste water outlet sets up at tank deck portion, sets up water drainage pipe in waste water outlet, and this water drainage pipe bottom extends the tank bottoms of sterilization jar, and this kind leads to the structure of flowing back on the bottom tube, can not keep the sterilization dead angle.
The utility model discloses a steam direct heating and the joint mode that presss from both sides the heat transfer of cover dividing wall improve the temperature in the sterilization jar and carry out high temperature sterilization, and steam direct heating can improve heating efficiency greatly, has increaseed the mixture of liquid in the sterilization jar simultaneously.
The utility model discloses a process line is special characterized in that sets up the heating jacket pipe on the key pipeline (including but not limited to: the live poison waste water that does not disinfect flows through the pipeline, the import pipeline of breather valve formula filter, relief valve import pipeline), and the heating jacket pipe has steam inlet and export, lets in high temperature steam to the cover intraductal, realizes carrying out high temperature sterilization to the pipeline to avoid the pipeline to pollute.
The utility model discloses be provided with the filter in sterilization jar waste water import, can hold back a small amount of solid sediment that probably exists in the waste water to cause the jam to the pipeline valve when avoiding discharging sewage.
The utility model discloses a cooling water inlet of heat exchanger passes through pipeline and storage water tank intercommunication, this storage water tank still with the cover delivery port that presss from both sides of waste water collecting tank, the cover delivery port that presss from both sides of sterilization jar and water steam boiler's water inlet intercommunication to set up first water pump on the pipeline between storage water tank and water steam boiler's water inlet, set up the second water pump on the pipeline between the cooling water inlet of storage water tank and heat exchanger, thereby realize the circulating water, strengthen the heat transfer effect at each heat transfer position simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of a biological live-poison wastewater thermal sterilization system of the present invention;
FIG. 2 is a schematic view of a breather valve filter according to the present invention;
fig. 3 is a schematic structural diagram of the heating sleeve according to the present invention.
Wherein:
1: waste water collection tank, 2: respiratory valve-type filter, 3: sterilization pot, 4: water steam boiler, 5: first water pump, 6: water storage tank, 7: heat exchanger, 8: second water pump, 9: a second heat exchanger.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Example one
Referring to the attached figure 1, the thermal sterilization system for biological live toxicity wastewater comprises a wastewater collection tank 1, a sterilization tank 3, a water steam boiler 4, a water storage tank 6 and a heat exchanger 7.
The waste water collecting tank 1 is a cylindrical storage tank with a jacket, is a storage tank for collecting, storing and mixing live toxicity waste water, and is provided with a waste water inlet 1.1, a compressed air inlet 1.2, an auxiliary agent inlet 1.3 for tap water, disinfectant and the like, a waste water outlet 1.4 and an inlet and an outlet of the jacket. Wherein, the auxiliary agent inlet 1.3 is an inlet for disinfecting the emptied storage tank during equipment maintenance, and a reagent can be added into the waste water with strong alkalinity or strong acidity for neutralization so as to meet the requirement of the waste water after the sterilization of the live-poison waste water on the pH value when the waste water is discharged; the compressed air inlet 1.2 is used for providing pressure when the live toxic wastewater is fed into the sterilization tank.
The sterilizing tank 3 is also a cylindrical storage tank with a jacket and is sterilizing equipment for live-poison wastewater, and the sterilizing tank 3 is provided with a steam inlet 3.1, a wastewater inlet 3.2, an auxiliary agent inlet 3.3 for tap water, disinfectant and the like, a wastewater outlet 3.4 and an inlet and an outlet of the jacket. Wherein, a wastewater inlet 3.2 of the sterilization tank is connected with a wastewater outlet 1.4 of the wastewater collection tank through a pipeline, and a filter is arranged in the wastewater inlet of the sterilization tank, so as to intercept a small amount of solid precipitate possibly existing in the wastewater, thereby preventing a pipeline valve from being blocked when discharging the wastewater (the solid precipitate is sterilized in the sterilization tank together with the live-poison wastewater and then is periodically removed); the waste water outlet 3.4 is arranged at the top of the sterilization tank, a drainage pipeline is arranged at the waste water outlet, the bottom of the drainage pipeline extends to the bottom of the sterilization tank, and the drainage pipeline is externally connected to a water inlet of the heat exchanger 7; the steam inlet 3.1 of the sterilization tank and the inlet of the jacket of the sterilization tank are connected with the gas outlet of the steam boiler 4 through a pipeline, a silencer and a steam distributor are arranged in the steam inlet 3.1, the temperature in the sterilization tank is improved by adopting a combined mode of direct steam heating and heat transfer of the dividing wall of the jacket to carry out high-temperature sterilization, the direct steam heating can greatly improve the heating efficiency, and simultaneously, the mixing of liquid in the sterilization tank is increased.
The heat exchanger 7 is a cooling and heat recovery device for the inactivated wastewater, and aims to recycle heat as much as possible and save energy. The sterilization temperature of the live toxicity wastewater is 120-140 ℃ (determined according to different wastewater sterilization requirements), after sterilization is finished, a wastewater outlet 3.4 of the sterilization tank is opened, high-temperature wastewater in the sterilization tank enters a heat exchanger 7 through a drainage pipeline after flash evaporation and gasification, efficient heat exchange in a phase change state is carried out in the heat exchanger, so that heat is transferred to cooling water of the heat exchanger, a cooling water outlet of the heat exchanger is connected to a jacket inlet of a wastewater collection tank 1 through a pipeline, heat is transferred to the wastewater collection tank 1, the wastewater in the wastewater collection tank is preheated, and then the wastewater is collected and stored in a water storage tank for supplying water to a boiler, so that waste heat recovery is realized, and energy consumption is reduced.
The cooling water inlet of the heat exchanger 7 is communicated with a water storage tank 6 through a pipeline, the water storage tank 6 is also communicated with the jacket water outlet of the wastewater collection tank 1, the jacket water outlet of the sterilization tank 3 and the water inlet of the water steam boiler 4, a first water pump 5 is arranged on the pipeline between the water storage tank and the water steam boiler water inlet, and a second water pump 8 is arranged on the pipeline between the water storage tank and the cooling water inlet of the heat exchanger, so that the circulating water is used.
Further, necessary pressure, temperature and level monitoring instruments are provided on the waste water collecting tank 1 and the sterilizing tank 3.
Furthermore, safety valves are arranged on the wastewater collection tank 1 and the sterilization tank 3 to prevent explosion caused by overlarge pressure in the tanks.
Example two
On the basis of the first embodiment, further, the waste water collecting tank 1 and the sterilizing tank 3 are both provided with a respiratory valve type filter 2, and the respiratory valve type filter has five functions, namely, one function of communicating with the external environment during feeding and discharging; secondly, biologically filtering the discharged gas to intercept carrier dust of possible bacteria or viruses; thirdly, the intercepted microorganisms are sterilized on line; fourthly, heating and volatilizing the condensed liquid to prevent freezing and blocking so as to ensure the normal filtering function; fifthly, the gas discharged by the safety valve is filtered and sterilized, the structure of the breather valve filter 2 is shown in figure 2, and the structure of the breather valve filter is as follows: the filter comprises a filter cylinder shell 2-4, wherein a biological filter element 2-1 (with the aperture of 0.2 micron) is arranged in the filter cylinder shell, the top of the filter cylinder shell is provided with an air outlet, the bottom of the filter cylinder shell is provided with an air inlet, so that gas in a tank is discharged from the upper part of the filter cylinder shell after passing through the biological filter element 2-1, the filter cylinder shell is provided with a jacket 2-3, the jacket is provided with an inlet 2-5 and an outlet 2-2, the online high-temperature sterilization of the filter is realized by introducing high-temperature steam into the jacket, and condensed liquid in the filter cylinder is heated and volatilized, so that the freezing and blocking are prevented.
EXAMPLE III
On the basis of the above embodiment, further, the second heat exchanger 9 can be connected after the water outlet of the heat exchanger 7 to form secondary waste heat utilization, and the warm water discharged from the cooling water outlet of the second heat exchanger 9 is supplied to a required place.
Example four
On the basis of the above embodiment, the process pipeline of the patent is further characterized in that a heating sleeve is arranged on a key pipeline (including but not limited to an unsterilized live-poison wastewater flowing pipeline, an inlet pipeline of a breather valve type filter and an inlet pipeline of a safety valve), referring to fig. 3, the heating sleeve a is provided with a steam inlet b and a steam outlet c, and high-temperature steam is introduced into the sleeve to realize online high-temperature sterilization of the pipeline so as to avoid pipeline pollution.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (10)
1. A biological live toxicity waste water thermal sterilization system which is characterized in that: comprises a waste water collecting tank, a sterilizing tank, a water steam boiler, a water storage tank and a heat exchanger;
the waste water collecting tank is a storage tank with a jacket, and is provided with a waste water inlet, a compressed air inlet, a waste water outlet and an inlet and an outlet of the jacket;
the sterilization tank is a storage tank with a jacket, and is provided with a steam inlet, a wastewater outlet and an inlet and an outlet of the jacket, wherein the wastewater inlet of the sterilization tank is connected with the wastewater outlet of the wastewater collection tank through a pipeline; a wastewater outlet of the sterilization tank is arranged at the top of the sterilization tank, a drainage pipeline is arranged at the wastewater outlet, the bottom of the drainage pipeline extends to the bottom of the sterilization tank, and the drainage pipeline is externally connected to a water inlet of the heat exchanger; the steam inlet of the sterilization tank and the inlet of the jacket of the sterilization tank are connected with the air outlet of a steam boiler through a pipeline, and the temperature in the sterilization tank is increased by adopting a combined mode of direct steam heating and heat transfer of the dividing wall of the jacket for high-temperature sterilization; a cooling water outlet of the heat exchanger is connected to a jacket inlet of the wastewater collection tank through a pipeline, so that heat is transferred to the wastewater collection tank, and wastewater in the wastewater collection tank is preheated; the cooling water inlet of the heat exchanger is communicated with a water storage tank through a pipeline, and the water storage tank is also communicated with a jacket water outlet of the waste water collecting tank, a jacket water outlet of the sterilizing tank and a water inlet of a water steam boiler.
2. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: all be provided with the breather valve formula filter on waste water collection tank and sterilization jar, the breather valve formula filter structure is: the biological filter comprises a filter cylinder shell, wherein a biological filter element is arranged in the filter cylinder shell, the top of the filter cylinder shell is provided with an air outlet, the bottom of the filter cylinder shell is provided with an air inlet, the filter cylinder shell is provided with a jacket, and the jacket is provided with a steam inlet and a steam outlet.
3. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: a first water pump is arranged on a pipeline between the water storage tank and a water inlet of the water steam boiler, and a second water pump is arranged on a pipeline between the water storage tank and a cooling water inlet of the heat exchanger.
4. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: and the rear part of the water outlet of the heat exchanger is connected with a second heat exchanger.
5. The system for thermal sterilization of biologically active wastewater according to claim 2, wherein: the heating sleeve is arranged on an unsterilized live-poison wastewater flowing pipeline, an inlet pipeline of the breather valve type filter and an inlet pipeline of the safety valve, and is provided with a steam inlet and a steam outlet and used for introducing high-temperature steam into the sleeve to realize high-temperature sterilization of the pipeline.
6. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: a silencer and a steam distributor are arranged in a steam inlet of the sterilizing tank.
7. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: a filter is arranged in the wastewater inlet of the sterilization tank.
8. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: and auxiliary agent inlets are arranged on the wastewater collection tank and the sterilization tank and are used for introducing tap water or disinfectant into the tanks.
9. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: and pressure, temperature and liquid level monitoring instruments are arranged on the wastewater collection tank and the sterilization tank.
10. The system for thermal sterilization of biologically active wastewater according to claim 1, wherein: safety valves are also arranged on the wastewater collecting tank and the sterilizing tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120551765.XU CN214735126U (en) | 2021-03-17 | 2021-03-17 | Biological live-poison waste water thermal sterilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120551765.XU CN214735126U (en) | 2021-03-17 | 2021-03-17 | Biological live-poison waste water thermal sterilization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506891A (en) * | 2022-02-15 | 2022-05-17 | 四川科特空调净化有限责任公司 | High living biological wastewater inactivation treatment system |
| CN115177996A (en) * | 2022-09-08 | 2022-10-14 | 无锡维邦工业设备成套技术有限公司 | Feeding anti-blocking device and continuous inactivation equipment using same |
-
2021
- 2021-03-17 CN CN202120551765.XU patent/CN214735126U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506891A (en) * | 2022-02-15 | 2022-05-17 | 四川科特空调净化有限责任公司 | High living biological wastewater inactivation treatment system |
| CN115177996A (en) * | 2022-09-08 | 2022-10-14 | 无锡维邦工业设备成套技术有限公司 | Feeding anti-blocking device and continuous inactivation equipment using same |
| CN115177996B (en) * | 2022-09-08 | 2022-12-13 | 无锡维邦工业设备成套技术有限公司 | Feeding anti-blocking device and continuous inactivation equipment using same |
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