Inactivation device for biological fermentation waste liquid

Abstract

The utility model relates to the technical field of biological fermentation waste liquid treatment, in particular to an inactivation device for biological fermentation waste liquid, which comprises a device body provided with an input end for leading in waste liquid and a discharge end for discharging inactivated waste liquid, the device body comprises a waste liquid collecting and storing assembly, a distributing and caching assembly, an inactivation assembly, a heat recovery assembly and a cooling assembly, and the distributing and caching assembly is connected with the waste liquid collecting and storing assembly; the inactivation component is connected with the distribution cache component; the heat recovery assembly is connected with the inactivation assembly and the distribution cache assembly; the cooling assembly is connected with the heat recovery assembly. The device disclosed by the utility model has the advantages of safety, reliability, high efficiency, energy conservation, simplicity in operation and the like, the inactivation operation can be continuously and efficiently completed, the productivity is improved, and the equipment operation has higher safety and stability.

Description

Technical Field

[0001] The utility model relates to the technical field of biological fermentation waste liquid treatment, and particularly relates to an inactivation device for biological fermentation waste liquid. Background Art

[0002] Biological fermentation waste liquid is generally generated during the production and manufacturing processes in laboratories or factories. Since it contains various microorganisms, direct discharge poses a risk of environmental pollution. Therefore, it usually needs to be subjected to disinfection treatments such as microbial inactivation before it can meet the discharge standards and be discharged.

[0003] Traditional waste liquid inactivation treatment methods can be basically divided into two types: 1) adding a certain concentration of acid or alkali solution to the biological fermentation waste liquid for microbial inactivation, and then discharging it after acid-base neutralization treatment; 2) high-temperature inactivation, that is, heating the biological waste liquid in a cooking tank for a certain period of time for inactivation. However, no matter which waste liquid inactivation device is used, there are problems such as cumbersome operation, long treatment time, and low output. Moreover, inactivation often needs to be carried out in batches. Such devices and corresponding treatment methods are acceptable for some small factories or laboratories. The former has relatively low requirements for production capacity or quality, and laboratories are not sensitive to production defect problems. However, for medium and large-scale production enterprises with complete production lines and high production capacities, traditional methods and devices are not applicable. Even in some automated industrial structures, they cannot be matched with automated production lines, greatly restricting the overall production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inactivation device for biological fermentation waste liquid to solve the above technical problems.

[0005] The technical problems solved by the utility model can be achieved by the following technical solutions:

[0006] An inactivation device for biological fermentation waste liquid includes a device body, which has an input end for introducing waste liquid and a discharge end for discharging the inactivated waste liquid. Among them, the device body includes:

[0007] A waste liquid storage and collection component for collecting waste liquid;

[0008] A distribution and buffer component for liquid level control and temporary storage before the waste liquid is further transported. The liquid level control includes waste liquid transportation and reflux. The reflux situation includes incomplete inactivation (for example, the temperature of the inactivated waste liquid fails to meet the standard during detection and is determined to be unqualified for inactivation and needs to be inactivated again). The distribution and buffer component is connected to the waste liquid storage and collection component;

[0009] An inactivation component for high-temperature sterilization inactivation of waste liquid. The inactivation component is connected to the distribution and buffer component;

[0010] A heat recovery component, which is used to recover the waste heat of the inactivated high-temperature waste liquid and preheat the to-be-inactivated low-temperature waste liquid, and the heat recovery component is connected to the inactivation component and the distribution and buffer component;

[0011] A cooling component, which is used to cool the inactivated waste liquid to reach the discharge temperature standard, and the cooling component is connected to the heat recovery component.

[0012] By providing a waste liquid storage component, a distribution and buffer component, an inactivation component, a heat recovery component and a cooling component, the present utility model realizes the efficient inactivation treatment of biological fermentation waste liquid. Compared with traditional means, the output is relatively high and the treatment quality is stable.

[0013] Preferably, the waste liquid storage component includes a first storage tank, a first transfer pump and a filter,

[0014] The input end of the first transfer pump is connected to the first storage tank, and the output end is connected to the filter,

[0015] The filter is connected to the distribution and buffer component.

[0016] Preferably, the waste liquid storage component includes a breather (the filter material thereof can adopt SS304 material), and the breather is arranged on the top of the first storage tank.

[0017] Preferably, the distribution and buffer component includes a second storage tank and a second transfer pump. The output pipeline of the second storage tank is connected to the input end of the second transfer pump, and the output end of the second transfer pump is connected to the inactivation component,

[0018] The top of the second storage tank is connected to a reflux pipeline, and is connected to the cooling component through the reflux pipeline, so as to return the waste liquid that fails to be inactivated to the second storage tank for re-inactivation treatment.

[0019] Preferably, the output pipeline of the second storage tank is connected to two of the second transfer pumps, and a flow meter is provided on the connecting pipeline between the two second transfer pumps and the inactivation component, and both transfer pumps are connected to the flow meter.

[0020] By providing two second transfer pumps, the present utility model realizes the design of a two-way feeding structure. During normal operation, only one pump works. When the flow meter detects insufficient pipeline flow, it is switched online to the other pump to realize continuous operation without stopping.

[0021] Preferably, the inactivation component includes a first heat exchange tube and a heat preservation tube, and both ends of the first heat exchange tube are respectively connected to the distribution and buffer component and the heat preservation tube.

[0022] The utility model is provided with a first heat exchange tube for raising the temperature of the un-inactivated low-temperature waste liquid to the inactivated temperature, and a heat preservation tube is provided to keep the waste liquid at the inactivated temperature during the inactivation period, ensuring the inactivation effect.

[0023] Preferably, the heat recovery component includes a heat exchange tube group formed by connecting at least two second heat exchange tubes in sequence. The input end of the tube layer of the heat exchange tube group is connected to the inactivation component, and the output end is connected to the cooling component. The input end of the shell layer of the heat exchange tube group is connected to the distribution and buffer component, and the output end is connected to the inactivation component.

[0024] Preferably, the cooling component includes a third heat exchange tube. The input end of the third heat exchange tube is connected to the heat recovery component, and the output end is connected to the external discharge pipeline.

[0025] Preferably, the device body includes a cleaning component. The cleaning component is connected to the distribution and buffer component and is used to clean the conveying pipeline and each device after the cleaning liquid is configured into each cleaning pipeline;

[0026] The cleaning component includes a cleaning liquid input pipeline. One end of the cleaning liquid input pipeline is connected to the distribution and buffer component, and the other end is connected to a cleaning liquid supply device. A control valve is provided on the cleaning liquid input pipeline.

[0027] Preferably, the cleaning component includes a third storage tank. The third storage tank is connected to the conveying pipeline of the distribution and buffer component through a reversing valve.

[0028] The third storage tank is set as a closed tank, and an air regulating valve is provided at its top.

[0029] Beneficial effects: Due to the above technical solutions, the utility model has the advantages of safety and reliability, high efficiency and energy saving, simple operation, etc. The inactivation operation can be completed continuously and efficiently, improving production capacity, and the equipment operation has high safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a functional connection schematic diagram of the utility model;

[0031] Figure 2 It is a pipeline connection schematic diagram of the waste liquid storage component of the utility model;

[0032] Figure 3 It is a pipeline connection schematic diagram of the distribution and buffer component of the utility model;

[0033] Figure 4 It is a pipeline connection schematic diagram of the inactivation component and the heat recovery component of the utility model;

[0034] Figure 5Schematic diagram of a pipeline connection for a cooling component of the present utility model;

[0035] Figure 6 Schematic diagram of a pipeline connection for a cleaning component of the present utility model;

[0036] Figure 7 Schematic diagram of a pipeline connection of the present utility model. Detailed implementation manners

[0037] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations. It should be noted that the terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present utility model are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the term "comprising" or "having" and any variation thereof are intended to cover non-exclusive inclusion. For example, a product or device comprising a series of components or units does not necessarily have to be limited to those components or units clearly listed, but may include other components or component units that are not clearly listed or are inherent to these products or devices.

[0038] Refer to Figure 1 , an inactivating device for biological fermentation waste liquid, comprising a device body, which has an input end for introducing waste liquid and a discharge end for discharging the inactivated waste liquid. Among them, the device body includes a waste liquid storage component 100, a distribution and buffer component 200, an inactivation component 300, a heat recovery component 400, and a cooling component 500. Among them,

[0039] The waste liquid storage component 100 is used for waste liquid collection;

[0040] The distribution and buffer component 200 is used for liquid level control and temporary storage before the subsequent transportation of waste liquid. The liquid level control includes waste liquid transportation and reflux. The situation of reflux includes incomplete inactivation (for example, the temperature detection of the inactivated waste liquid fails to meet the standard and is determined to be unqualified for inactivation and needs to be inactivated again). The distribution and buffer component 200 is connected to the waste liquid storage component 100;

[0041] The inactivation component 300 is used for high-temperature sterilization and inactivation of waste liquid. The inactivation component 300 is connected to the distribution and buffer component 200;

[0042] The heat recovery component 400 is used for recovering the waste heat of the inactivated high-temperature waste liquid and preheating the low-temperature waste liquid to be inactivated. The heat recovery component 400 is connected to the inactivation component 300 and the distribution and buffer component 200;

[0043] The cooling component 500 is used to cool the inactivated waste liquid to reach the discharge temperature standard, and the cooling component 500 is connected to the heat recovery component 400.

[0044] Specifically, as Figure 1 shown, the input end of the waste liquid storage component 100 can be connected to a waste liquid conveying pipeline (not shown in the figure) to obtain the un-inactivated waste liquid, and the output end is connected to the distribution and buffer component 200, and the collected waste liquid is sent to the distribution and buffer component 200 for buffering, which has a relatively high storage capacity;

[0045] The input end of the distribution and buffer component 200 is connected to the output end of the waste liquid storage component 100, and the output end is connected to the subsequent inactivation component 300 and the heat recovery component 400. It can be configured by a valve group as needed to directly convey the waste liquid to the inactivation component 300, or first distribute the waste liquid to the heat recovery component 400 and then convey it to the inactivation component 300. When passing through the heat recovery component 400, it is preheated to reduce the burden of subsequent operations (including reducing the temperature-raising burden of the inactivation component 300 and also reducing the temperature-lowering burden of the cooling component 500). When the distribution and buffer component 200 works, the un-inactivated low-temperature waste liquid is conveyed through it to the inactivation component 300 and the heat recovery component 400 for inactivation treatment. After the inactivated waste liquid is detected, if it does not meet the standard, it is sent back (to the distribution and buffer component 200) and then redistributed to the inactivation component 300 and the heat recovery component 400;

[0046] The input end of the inactivation component 300 is connected to the output end of the distribution and buffer component 200, and the output end is connected to the cooling component 500 through the heat recovery component 400. When working, the inactivation component 300 is filled with high-temperature steam, and the low-temperature waste liquid is heated to the inactivation temperature through heat exchange;

[0047] The heat recovery component 400 is simultaneously connected to the input section and the output section of the inactivation component 300 to achieve cooperation between the two components, so as to achieve the purpose of recovering the waste heat of the inactivated waste liquid and preheating the un-inactivated waste liquid;

[0048] It should be noted that the access mode of the heat recovery component 400 is set as follows: This component includes a group of heat exchange tube groups. The tube layer structure of the heat exchange tube groups is directly connected to the output section of the inactivation component 300 (this connection structure is similar to the series structure in circuit connection), and the shell layer structure of the heat exchange tube groups is connected to the input section of the inactivation component 300 in a bypass mode (this connection structure is similar to the parallel structure in circuit structure).

[0049] As Figure 4 、 Figure 5As shown, the input end of the tube layer structure of the heat exchange tube group 401 (through the holding tube) is connected to the output end of the shell layer of the heat exchange tube 301 of the inactivation component 300, and the output end is connected to the input end of the tube layer of the heat exchange tube 501 of the cooling component 500; the input end of the shell layer structure of the heat exchange tube group 401 is connected to the output end of the distribution buffer component 200, and the output end is connected to the input end of the shell layer of the heat exchange tube 301 of the inactivation component 300.

[0050] During the interactive operation of the inactivation component 300 and the heat recovery component 400, the un-inactivated waste liquid is in a low-temperature state, and the inactivated waste liquid obtained after being processed by the inactivation component 300 is in a high-temperature state and is not suitable for direct discharge. It needs to be cooled to the standard temperature by the cooling component 500 before being discharged. If the high-temperature waste liquid is directly transported to the subsequent cooling component 500, it will increase the burden on the cooling component 500 and relatively waste more energy; after the waste heat of the high-temperature waste liquid is recovered by the heat recovery component 400, the heat energy of the high-temperature waste liquid is used to preheat the subsequent low-temperature waste liquid to be processed. After heat exchange, the temperature of the inactivated high-temperature waste liquid is also reduced, reducing the burden on the subsequent cooling component 500 and saving energy.

[0051] The input end of the cooling component 500 is connected to the heat recovery component 40, and the output end is connected to the distribution buffer component 200 through a branch pipeline structure. One way is for external discharge, and the other way is to connect back to the distribution buffer component 200, so as to cool the inactivated waste liquid that meets the standard to the discharge standard and then discharge it. Or, when it is detected that the waste liquid inactivation does not meet the standard in the output section (the pipe section where the holding tube is located) of the inactivation component 300, it is returned to the distribution buffer component 200 and then recycled for inactivation.

[0052] The waste liquid storage component of the present utility model is arranged in the following structure: in some embodiments, the waste liquid storage component includes a first storage tank, a first transfer pump, and a filter. The input end of the first transfer pump is connected to the first storage tank, the output end is connected to the filter, and the filter is connected to the distribution buffer component.

[0053] Specifically, as Figure 2 、 Figure 7 shown, the first storage tank 101 uses the top of the tank as the waste liquid input position, and automatic butterfly valves are provided on both its output pipeline 1072 and input pipeline 1071.

[0054] It should be noted that the waste liquid input position at the top of the first storage tank constructs the input end of the device body after being connected to the input pipeline, achieving the effect of waste liquid introduction.

[0055] The first storage tank 101 is sequentially connected to the first transfer pump 102, the filter 103, and the distribution buffer component 200 through the output pipeline 1072. In the output path, automatic butterfly valves are provided at both ends of any device to control the on-off of the pipeline.

[0056] Based on the above examples, in some preferred embodiments, a manual valve is provided in the output pipeline of the first storage tank for maintenance purposes. As Figure 2 shown, a manual butterfly valve 1051 is provided on the output pipeline 1072 to facilitate emergency operation during manual intervention. For example, during maintenance and repair, the output of the first storage tank can be conveniently cut off through the manual valve to avoid malfunction of automatic control or abnormal conditions. The manual butterfly valve 1051 is arranged between the first storage tank 101 and the first transfer pump 102, and in the pipeline section before the automatic butterfly valve between the two.

[0057] Based on the above examples, when the present utility model sets up the waste liquid storage assembly, in order to effectively control the pressure in its first storage tank and ensure that the pressure in the tank is within a safe range, it can be set according to the following structure: In some embodiments, the waste liquid storage assembly includes a breather (the filter material of which can be made of SS304 material), and the breather is arranged on the top of the first storage tank. As Figure 2 shown, the breather 104 is arranged on the top of the first storage tank 101.

[0058] It should be noted that a breather is a device used to control the pressure in a storage tank. It can adjust the pressure according to the change of the pressure inside and outside the storage tank, so that the pressure in the storage tank is always within a safe range. When it works, when the tank body expands or contracts, it can control the addition and subtraction of the gas in the tank through an automatic switch to achieve the purpose of stabilizing the internal gas pressure of the tank body.

[0059] By setting the breather, the present utility model can prevent the first storage tank from having abnormal pressure during waste liquid perfusion or tank body emptying due to factors such as temperature change and liquid level change, and avoid possible tank body deformation or even explosion.

[0060] Based on the above examples, the present utility model can also be set according to the following structure to achieve the sterilization and disinfection of the breather: In some preferred embodiments, a steam input pipeline is externally connected to the breather for sterilization and disinfection, as Figure 2 shown, the input end of the breather 104 is connected to the steam input pipeline 1073. In addition, the breather 104 is also connected to a steam trap 1052. A temperature sensor 1061 is provided on the hydrophobic path, and an automatic ball valve 1053 is provided on the steam input pipeline 1073. The automatic ball valve 1053 is connected to the temperature sensor 1061 to adjust the steam input amount based on the temperature detection result of the temperature sensor to avoid substandard sterilization.

[0061] A high and low liquid level detection sensor is also provided on the first storage tank 101 to detect the storage situation in the tank in real time.

[0062] It should be noted that a bypass for discharging to the ground is also provided on the pipeline between the filter 103 and the first transfer pump 102, which also facilitates maintenance operations such as replacing the filter element and other related emergency operations.

[0063] The distribution and buffer assembly of the present utility model is arranged in the following structure: In some embodiments, the distribution and buffer assembly includes a second storage tank and a second transfer pump. The output pipeline of the second storage tank is connected to the input end of the second transfer pump, and the output end of the second transfer pump is connected to the inactivation assembly. The top of the second storage tank is connected to a reflux pipeline, and is connected to the cooling assembly through the reflux pipeline, so as to reflux the waste liquid that fails to be inactivated to the second storage tank for re-inactivation treatment.

[0064] Specifically, as Figure 3 shown, the output pipeline 2051 of the second storage tank 201 is connected to the second transfer pump 202, and the output end of the second transfer pump 202 is connected to the inactivation assembly 300.

[0065] A reflux interface is provided at the top of the second storage tank 201, which is connected to the reflux pipeline 2052 and then connected to the cooling assembly 500.

[0066] It should be noted that the reflux pipeline 2052 is the Figure 5 、 Figure 6 branch pipe 50212 in

[0067] The second storage tank 201 is provided with a liquid level sensor 2031 for real-time detection of the liquid level height in the tank, so as to control the input amount of waste liquid and avoid overflow. For this purpose, a corresponding automatic regulating valve 204 is provided on its input pipeline, and the automatic regulating valve 204 is connected to the liquid level sensor 2031, so as to adjust the input flow according to the real-time detection result of the liquid level sensor 2031.

[0068] A low liquid level detection sensor 2032 is also provided at the bottom of the second storage tank 201, so as to give an alarm when the liquid level is lower than the lowest limit height.

[0069] Automatic butterfly valves for controlling the on / off of the pipeline are provided on both the front and rear sections of the transfer pipeline connected to the second transfer pump 202.

[0070] Based on the above example, in order to cope with emergencies such as transfer pump failures, the present utility model can be provided with a dual-feed structure as follows: In some preferred embodiments, the output pipeline of the second storage tank is connected to two second transfer pumps, and flow meters are provided on the connecting pipelines of the two second transfer pumps and the inactivation assembly, and both transfer pumps are connected to the flow meters. By providing two second transfer pumps, the present utility model constructs a two-feed structure. During normal operation, only a single pump works. When the flow meter detects insufficient pipeline flow, it is switched online to the other pump, so as to achieve continuous operation without stopping. As Figure 3As shown, the input ends of two second transfer pumps 202 are both connected to the second storage tank 201, and the output ends are both connected to the inactivation assembly 300. Their connection structure in the pipeline is similar to the parallel structure in an electric circuit. And automatic butterfly valves are provided at both ends of any one of the second transfer pumps. To detect the pipeline flow rate for transfer pump switching, a flowmeter 206 is provided on the pipeline 3032, and the flowmeter 206 is electrically connected to the two second transfer pumps 202 (here it means that the signal output of the flowmeter is fed back to the control circuit for controlling the two transfer pumps, and it switches the start and stop of the two pumps according to the flow rate monitoring results).

[0071] In some embodiments of the present utility model, more than two second transfer pumps can also be connected in parallel to achieve a multi-feed structure to cope with relatively harsh working conditions.

[0072] The inactivation assembly of the present utility model is arranged in the following structure: In some embodiments, the inactivation assembly includes a first heat exchange tube and a heat preservation tube. The two ends of the first heat exchange tube are respectively connected to the distribution buffer assembly and the heat preservation tube.

[0073] The present utility model sets the first heat exchange tube to raise the temperature of the un-inactivated low-temperature waste liquid to the inactivation temperature, and sets the heat preservation tube to keep the waste liquid at the inactivation temperature during the inactivation period to ensure the inactivation effect.

[0074] Specifically, as Figure 4 shown, the input end of the tube layer of the first heat exchange tube 301 is connected to the steam input pipeline 3031, and the output end is provided with a steam trap 304 and a check valve 3052 to ensure the steam circulation. The check valve 3052 is located between the steam trap 304 and the first heat exchange tube 301 to prevent backflow;

[0075] In addition, a manual ball valve is provided at the outlet of the steam trap 304 for manual control when needed;

[0076] An automatic regulating valve 3051 is provided on the steam input pipeline 3031 to control the on-off of the steam input;

[0077] The input end of the shell layer of the first heat exchange tube 301 is connected to the distribution buffer assembly through the input pipeline 3032, and the output end is connected to the input end of the heat preservation tube 302. The output end of the heat preservation tube 302 is connected to the output pipeline 3033, and thus connected to the cooling assembly 500;

[0078] A first temperature sensor 3061 and a second temperature sensor 3062 are respectively provided at the input end and the output end of the heat preservation tube 302 to detect the heat preservation effect of the heat preservation tube 302. When the temperature difference exceeds the set threshold value, it is considered that the inactivation temperature changes or the inactivation time does not meet the standard, that is, the inactivation quality does not meet the standard. In this state, the waste liquid is returned to the storage tank of the distribution buffer assembly through the cooling assembly 500 to wait for re-inactivation;

[0079] The first temperature sensor 3061 is electrically connected to the automatic regulating valve 3051 (which means that after the output signal of the sensor is sent out, it is received by the regulating valve, and the regulating valve adjusts the steam input according to the temperature detection result, thereby adjusting the heat exchange effect to reach the planned inactivation temperature), enabling the two to cooperate. When the waste liquid does not reach the inactivation temperature, the steam input is adjusted, and when the temperature of the waste liquid is too high, the steam input is reduced.

[0080] The heat recovery component of the present utility model is arranged in the following structure to cooperate with the distribution buffer component and the inactivation component to realize the waste heat recovery of the inactivated waste liquid and the preheating of the non-inactivated waste liquid: In some embodiments, the heat recovery component includes a heat exchange tube group composed of at least two second heat exchange tubes connected in sequence.

[0081] The input end of the tube layer of the heat exchange tube group is connected to the inactivation component, and the output end is connected to the cooling component.

[0082] The input end of the shell layer of the heat exchange tube group is connected to the distribution buffer component, and the output end is connected to the inactivation component.

[0083] Specifically, as Figure 4 shown, the heat recovery component includes a heat exchange tube group 401 composed of three heat exchange tubes, and the three heat exchange tubes are connected in sequence. Among them,

[0084] An automatic butterfly valve 4021 is provided on the input branch pipeline of the shell layer structure of the heat exchange tube group 401, and an automatic regulating valve 4022 is provided on the input pipeline 3032.

[0085] The input end and the output end of the shell layer structure of the heat exchange tube group 401 are respectively connected to the distribution buffer component 200 and the inactivation component 300. Figure 4 In the shown structure, the input end and the output end of the shell layer structure of the heat exchange tube group 401 are respectively connected to the front and rear ends of the automatic regulating valve 4022 (this structure is set similar to that the heat exchange tube group 401 and the automatic regulating valve 4022 are connected in parallel in the form of an electric circuit);

[0086] The input end and the output end of the tube layer structure of the heat exchange tube group 401 are respectively connected to the inactivation component 300 and the cooling component 500.

[0087] It should be noted that the connection method of each heat exchange tube of the heat exchange tube group is set as follows: The tube layers of the three heat exchange tubes are connected in sequence, the output end of the tube layer of the current heat exchange tube is connected to the input end of the tube layer of the next heat exchange tube (this structure is equivalent to that the tube layer structures of the heat exchange tubes are connected in series in the form of an electric circuit), and the output end of the shell layer of the current heat exchange tube is connected to the input end of the shell layer of the next heat exchange tube (this structure is equivalent to that the shell layer structures of the heat exchange tubes are connected in series in the form of an electric circuit).

[0088] In some of the preferred embodiments, the heat recovery component includes a pipeline automatic adjustment mechanism for adjusting the flow rate of the input pipeline 3032 according to the detected temperature of the waste liquid flowing to the cooling component 500. The pipeline automatic adjustment mechanism consists of an automatic regulating valve 4022 and a temperature sensor 403. The temperature sensor 403 is arranged in the output pipeline 3033 and is electrically connected to the automatic regulating valve 4022 (referring to the signal output of the temperature sensor 403 being fed back to the automatic regulating valve).

[0089] It should be noted that in the above examples, the tube layer structure of the heat exchange tube refers to the area where the inner cavity of the tube is located, and the shell layer structure of the heat exchange tube refers to the area of the chamber between the outer wall of the tube and the outer shell that encapsulates the heat exchange tube.

[0090] The cooling component of the present utility model is arranged as follows: In some of the embodiments, the cooling component includes a third heat exchange tube. The input end of the third heat exchange tube is connected to the heat recovery component, and the output end is connected to the external discharge pipeline.

[0091] It should be noted that the discharge end of the device body is achieved by constructing the external discharge pipeline to discharge the inactivated waste liquid.

[0092] Specifically, as Figure 5 shown, the input end of the tube layer of the third heat exchange tube 501 is connected to the input pipeline 3033, and the output end is connected to the external discharge pipeline 5021;

[0093] The external discharge pipeline 5021 is provided with two branch pipes at the end. An automatic cut-off valve 5031 is arranged on one branch pipe 50211 to construct the discharge end of the device body for controlling the on-off of the external discharge process; the other branch pipe 50212 is connected to the second storage tank 201, and an automatic cut-off valve 5032 is arranged in the pipeline to flexibly switch between reflux and external discharge through the branch pipeline and the two cut-off valves;

[0094] A back pressure valve 5033 is arranged on the external discharge pipeline 5021 for balancing the pipeline pressure;

[0095] The input end and the output end of the shell layer of the third heat exchange tube 501 are respectively connected to the steam source in a circulating manner through a steam input pipeline 5051 and a steam output pipeline 5052. An automatic regulating valve 5034 is arranged on the steam input pipeline 5051, and a supporting temperature sensor 504 is also arranged on the external discharge pipeline 5021. The two are electrically connected so as to improve the temperature reduction effect in a timely manner by adjusting the steam flow rate in the pipeline when the temperature reduction effect does not meet the expectation.

[0096] The present utility model is configured as follows to achieve cleaning and disinfection of pipelines and various components before and after inactivation operations such as water flushing, CIP, and SIP at the start and end of equipment startup and inactivation: In some embodiments, the device body includes a cleaning assembly, and the cleaning assembly is connected to a distribution and buffer assembly for configuring cleaning liquid into each cleaning pipeline and then cleaning the conveying pipeline and various components of the device body;

[0097] The cleaning assembly includes a cleaning liquid input pipeline, one end of which is connected to the second storage tank (of the distribution and buffer assembly), and the other end is connected to a cleaning liquid supply device (for different types of cleaning liquid, there are independent cleaning liquid supply sources, for example, a dedicated supply source for concentrated alkali). A control valve is provided on the cleaning liquid input pipeline to control the on / off of the conveying pipeline.

[0098] Specifically, as Figure 6 shown, one end of the cleaning liquid input pipeline 601 is connected to the second storage tank 201 so that after the cleaning liquid is input into the second storage tank 201, it is distributed to the subsequent cleaning circulation pipeline;

[0099] The other end of the cleaning liquid input pipeline 601 has a branch structure, and each branch corresponds to an independent cleaning liquid supply source. Figure 6 In the shown structure, the branch structure includes a concentrated alkali input pipe 6011, a concentrated acid input pipe 6012, and a soft water input pipe 6013. Each branch pipe is provided with an independent angle valve 6021 for pipeline control to achieve the effect of inputting different media at different cleaning stages after control;

[0100] To clean the waste liquid collection and storage assembly, a cleaning branch pipe 6031 is provided on the branch pipe 50212 to direct the input direction of the cleaning liquid to the first storage tank 101. A spray head is provided at the pipe orifice where the cleaning branch pipe 6031 is connected into the first storage tank 101 for cleaning the tank interior. An automatic butterfly valve 6022 is provided on the cleaning branch pipe 6031 to control the on / off of the pipeline. An automatic butterfly valve 6023 is provided between the automatic butterfly valve 6022 and the second storage tank 201 to cooperate with the automatic butterfly valve 6022 to control the circulation flow direction of the cleaning liquid;

[0101] To clean the second storage tank 201, as Figure 3 shown, a cleaning branch pipe 6032 is provided, one end of which is connected to the input pipeline 3032 through a stop valve 6024, and the other end is connected into the inner cavity of the second storage tank 201. The pipe orifice where it is connected is connected to a spray head for cleaning the tank interior.

[0102] Based on the above examples, the present utility model is configured as follows to achieve the stability of the distribution and buffer assembly during cleaning: The cleaning assembly includes a third storage tank. The third storage tank is connected to the conveying pipeline of the distribution and buffer assembly through a reversing valve. The third storage tank is set as a closed tank body, and an air regulating valve is provided at its top and connected to a compressed air source through it.

[0103] The purpose of setting the third storage tank in the present utility model is as follows: After the pipeline of the present utility model is cleaned, it is subjected to water flushing and high-temperature disinfection. During disinfection, the pipeline direction is controlled and switched through pipeline valves to make the liquid circulate and heat up, so as to reach the disinfection temperature (generally above 120 °C) and maintain a certain disinfection duration. The second storage tank is an atmospheric pressure container as a distribution buffer device. When the liquid in it exceeds 100 °C, it will boil violently and lose temperature rapidly, which not only poses a safety hazard but also causes heat energy loss. After setting the third storage tank, since it is a sealed tank body, after the air pressure is controlled by the air regulating valve, the liquid will not boil even when it exceeds 100 °C, ensuring the safety of the pipeline and the tank body.

[0104] Specifically, as Figure 3 shown, the cleaning assembly includes a third storage tank 604, on the top of which there are an air regulating valve 6025, a barometer and a safety valve, and on the tank body there is a low liquid level sensor. The third storage tank 604 is connected to the output pipeline 2051 of the second storage tank 201 through a reversing valve 6026. In addition, to achieve pipeline circulation (considering CIP and SIP), the third storage tank 604 is also connected to a branch pipe 50212 through a circulation branch pipe 6033, and an automatic butterfly valve 6027 is provided on the circulation branch pipe 6033 to control the on-off of this pipeline.

[0105] In summary, the present utility model realizes the inactivation treatment of high-efficiency biological fermentation waste liquid by setting a waste liquid collection and storage assembly, a distribution buffer assembly, an inactivation assembly, a heat recovery assembly and a cooling assembly. Compared with traditional means, the output is relatively high and the treatment quality is stable. When the inactivation device of the present utility model works, the waste liquid is collected by the collection and storage assembly and then transported to the distribution buffer assembly, which temporarily stores and distributes it backward, including directly transporting the waste liquid to the inactivation assembly for treatment, bypass transporting it to the heat recovery assembly for preheating, and performing reflux circulation and redistribution when the inactivation is not up to standard. After the interaction between the inactivation assembly and the heat recovery assembly, the heat energy of the high-temperature waste liquid after inactivation treatment is reused to preheat the waste liquid to be treated subsequently, and at the same time, it cools itself down, thereby reducing the operation burden of the subsequent cooling assembly. The cooling assembly cools the inactivated waste liquid to the discharge standard and then discharges it, or transports the unqualified waste liquid back to the distribution buffer assembly to wait for re-inactivation. It should be noted that in the present utility model, the waste liquid collection and storage assembly is used to centrally store the waste liquid to be treated, and the distribution buffer assembly is used to distribute the un-inactivated waste liquid to the subsequent treatment links as needed, or to recycle and inactivate the inactivated but unqualified waste liquid. Therefore, the capacity of the former should be set relatively larger so as to make the subsequent transportation and treatment sustainable and achieve a better flow balance.

[0106] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for inactivating waste liquid from biological fermentation, comprising a device body having an input end for introducing waste liquid and a discharge end for discharging the inactivated waste liquid, characterized in that: The device body comprises: Waste liquid collection and storage components; A distribution cache component, the distribution cache component is connected to the waste liquid collection and storage component; a deactivation component, the deactivation component being connected to the allocation cache component; A heat recovery component, the heat recovery component is connected to the inactivation component and the allocation cache component; A cooling component is connected to the heat recovery component.

2. The inactivation device for biological fermentation waste liquid according to claim 1, characterized in that: The waste liquid collection and storage component includes a first storage tank, a first delivery pump, and a filter. The input end of the first delivery pump is connected to the first storage tank, and the output end is connected to the filter. The filter is connected to the distribution cache component.

3. The inactivation device for biological fermentation waste liquid according to claim 2, characterized in that: The waste liquid collection component includes a respirator, which is arranged on the tank top of the first storage tank.

4. The inactivation device for biological fermentation waste liquid according to claim 1, characterized in that: The distribution cache assembly includes a second storage tank and a second delivery pump, The output pipeline of the second storage tank is connected to the input end of the second delivery pump, and the output end of the second delivery pump is connected to the inactivation component. The top of the second storage tank is connected to a return pipe, and the second storage tank is connected to the cooling component through the return pipe.

5. The inactivation device for biological fermentation waste liquid according to claim 4, characterized in that: The output pipeline of the second storage tank is connected to the two second delivery pumps, and a flow meter is provided on the connecting pipeline between the two second delivery pumps and the inactivation component, and both of the second delivery pumps are connected to the flow meter.

6. The inactivation device for biological fermentation waste liquid according to claim 1, characterized in that: The inactivation component includes a first heat exchange tube and a thermal insulation tube, and two ends of the first heat exchange tube are respectively connected to the distribution cache component and the thermal insulation tube.

7. The inactivation device for biological fermentation waste liquid according to claim 1, characterized in that: The heat recovery assembly comprises a heat exchange tube group consisting of at least two second heat exchange tubes connected in sequence, The input end of the tube layer structure of the heat exchange tube group is connected to the deactivation component, and the output end is connected to the cooling component. The input end of the shell structure of the heat exchange tube group is connected to the distribution buffer component, and the output end is connected to the inactivation component.

8. The inactivation device for biological fermentation waste liquid according to claim 1, characterized in that: The cooling component includes a third heat exchange tube, the input end of the third heat exchange tube is connected to the heat recovery component, and the output end is connected to the external discharge pipeline.

9. The inactivation device for biological fermentation waste liquid according to any one of claims 1 to 8, characterized in that: The device body includes a cleaning component, and the cleaning component is connected to the distribution cache component; The cleaning component includes a cleaning liquid input pipeline, one end of which is connected to the distribution buffer component and the other end is connected to the cleaning liquid supply device. A control valve is provided on the cleaning liquid input pipeline.

10. The inactivation device for biological fermentation waste liquid according to claim 9, characterized in that: The cleaning component includes a third storage tank, which is connected to the delivery pipeline of the distribution cache component through a reversing valve. The third storage tank is configured as a closed tank body with an air regulating valve on the top.

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