CIP cleaning fluid recovery device

Abstract

The utility model relates to a CIP (cleaning in place) cleaning solution recovery device, which belongs to the technical field of cleaning solution recovery, and comprises a recovery solution storage tank, a membrane component and a clear solution storage tank, the discharge end of the recovery solution storage tank is connected with the feed end of the membrane component through a first pipeline group, the membrane component is provided with two discharge ends, and the clear solution storage tank is connected with the feed end of the membrane component through a second pipeline group. Wherein one discharge end is connected to the return end of the recovered liquid storage tank through a second pipeline group, the other discharge end is connected to the feed end of the clear liquid storage tank through a third pipeline group, and the first pipeline group is connected with a circulating pump; and the first pipeline group, the second pipeline group and the third pipeline group are respectively connected with a low-point pipeline and a low-point valve for controlling the low-point pipeline. On one hand, recovered alkali cleaning liquid and acid cleaning liquid can be recycled, and on the other hand, self-circulation cleaning of the device can be achieved by connecting the cleaning tank and the agent tank into the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of cleaning fluid recovery technology, specifically a CIP cleaning fluid recovery device. Background Technology

[0002] Currently, food factories typically use a 30% alkaline cleaning agent (NaOH) and a 50% acidic cleaning agent (nitric acid) in their CIP cleaning solution. After each CIP cleaning of UHT and HTST sterilizers, the alkaline and acidic solutions are discharged, and the wastewater enters the sewage treatment process. Because the acid and alkaline solutions are highly corrosive, they can easily damage drainage pipes and sewage treatment equipment. Furthermore, the discharged alkaline and acidic solutions affect the pH value of the sewage system, directly impacting the sewage treatment effect and increasing sewage treatment costs. Utility Model Content

[0003] The purpose of this invention is to provide a CIP cleaning fluid recovery device that can solve the technical problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a CIP cleaning fluid recovery device, comprising: a recovery fluid storage tank, a membrane module, and a clear fluid storage tank. The discharge end of the recovery fluid storage tank is connected to the feed end of the membrane module via a first pipeline group. The membrane module has two discharge ends, one of which is connected to the return end of the recovery fluid storage tank via a second pipeline group, and the other discharge end is connected to the feed end of the clear fluid storage tank via a third pipeline group. The first pipeline group is connected to a circulation pump. The first pipeline group, the second pipeline group, and the third pipeline group are also respectively connected to a low-point pipeline and a low-point valve for their control.

[0005] In a preferred embodiment, the first pipeline group is further connected to a circulating waste liquid discharge pipeline.

[0006] In a preferred embodiment, the first pipeline assembly is further connected to a filter, which is disposed at the front end of the membrane module.

[0007] In a preferred embodiment, the recovered liquid storage tank includes a recovered alkali storage tank and a recovered acid storage tank, and the clear liquid storage tank includes a alkali treatment storage tank and an acid treatment storage tank.

[0008] In a preferred embodiment, the CIP cleaning fluid recovery device further includes a cleaning tank, the discharge end of which is connected to a first pipeline group via a cleaning discharge pipeline, and the cleaning tank has two return ends: one return end is connected to a second pipeline group via a first cleaning return pipeline, and the other return end is connected to a third pipeline group via a second cleaning return pipeline.

[0009] In a preferred embodiment, the CIP cleaning fluid recovery device further includes a reagent tank, which is connected to the cleaning tank via a reagent pipeline.

[0010] In a preferred embodiment, the pharmaceutical pipeline is connected to a metering pump.

[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: The CIP cleaning fluid recovery device provided by this invention can, on the one hand, recycle and reuse the recovered alkaline and acidic cleaning fluids through a membrane module. The main active components in the cleaning fluid, water, acid, or alkali, can pass through the membrane module. The recovered alkaline solution can be reused for CIP cleaning of production equipment after adjusting its concentration by quantitatively adding alkaline cleaning agent. The recovered acidic cleaning agent can be used directly. On the other hand, this device can also achieve self-circulating cleaning by connecting a cleaning tank and a reagent tank in the pipeline. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the CIP cleaning fluid recovery device provided in an embodiment of the present invention.

[0013] The meanings of the labels in the diagram are as follows:

[0014] 1. Alkali recovery storage tank; 3. Acid recovery storage tank; 5. Cleaning tank; 6. Chemical tank; 7. Metering pump; 8. Clean liquid flow meter; 12. Circulation pump; 15. Filter; 17. Membrane module; 19. Return flow meter; 25. Alkali treatment storage tank; 29. ​​Acid treatment storage tank; 34. First pipeline group; 35. Second pipeline group; 36. Third pipeline group; 37. Cleaning discharge pipeline; 38. First cleaning return pipeline; 39. Second cleaning return pipeline; (2, 4, 9, 10, 11, 13, 14, 18, 20, 21, 22, 23, 24, 26, 28, 30): Valves; (16, 32, 33): Low point valves; (27, 31): Transfer pumps. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Example 1

[0018] See Figure 1 This embodiment discloses a CIP cleaning fluid recovery device, including a recovery fluid storage tank, a membrane module 17, and a clear fluid storage tank. The cleaning fluid enters the recovery fluid storage tank. The outlet of the recovery fluid storage tank is connected to the inlet of the membrane module 17 via a first pipeline assembly 34. The membrane module 17 has two outlets, one for circulating fluid discharge and the other for clear fluid discharge. One outlet is connected to the return end of the recovery fluid storage tank via a second pipeline assembly 35, and the other outlet is connected to the inlet of the clear fluid storage tank via a third pipeline assembly 36. The first pipeline assembly 34 is also connected to a circulating waste fluid discharge pipeline, which is controlled by a valve 13.

[0019] Specifically, the first pipeline group 34 includes a branch pipeline of the recovered liquid connected to the discharge end of the recovered liquid storage tank and a main pipeline of the recovered liquid connected thereto. The branch pipeline of the recovered liquid and the main pipeline of the recovered liquid are respectively equipped with valves (2, 4, 10), and the main pipeline of the recovered liquid is connected to a circulation pump 12.

[0020] The second pipeline assembly 35 includes a main circulating liquid pipeline connected to one outlet end of the membrane module 17 and a branch circulating liquid pipeline connected thereto. The branch circulating liquid pipeline is connected to the return end of the recovery liquid storage tank. The main circulating liquid pipeline and the branch circulating liquid pipeline are respectively equipped with valves (18, 22, 21), and a reflux flow meter 19 is also connected to the main circulating liquid pipeline.

[0021] The third piping assembly 36 includes a main clear liquid pipeline connected to another discharge end of the membrane module 17 and a branch clear liquid pipeline connected thereto. The branch clear liquid pipeline is connected to the inlet end of the clear liquid storage tank. The branch clear liquid pipeline is equipped with valves (24, 28), and a clear liquid flow meter 8 is also connected to the main clear liquid pipeline. The discharge end of the clear liquid storage tank is connected to a discharge pipeline, which is equipped with valves (26, 30) and transfer pumps (27, 31).

[0022] In this embodiment, the membrane module 17 employs a cross-flow filtration device. This device uses an acid and alkali resistant tubular ceramic membrane with a pore size of approximately 50 nanometers to 100 nanometers. This device can completely remove suspended solids from the cleaning agent, reducing COD by 20-40%. The concentrations of the acid and alkali cleaning agents remain essentially consistent before and after filtration, achieving a recovery efficiency of 85-90%. Preferably, the main recovery liquid pipeline is also connected to a filter 15, which is located at the front end of the membrane module 17 to intercept solid particles in the recovery liquid, preventing blockage of the flow channels of the membrane module 17. A valve 14 is provided at the front end of the filter 15.

[0023] Preferably, in this embodiment, the recovered liquid storage tank further includes a recovered alkali storage tank 1 and a recovered acid storage tank 3, which are respectively connected to the recovered liquid main pipeline via recovered liquid branch pipelines. Correspondingly, the clear liquid storage tank further includes a treated alkali storage tank 25 and a treated acid storage tank 29, which are respectively connected to the clear liquid main pipeline via clear liquid branch pipelines.

[0024] Furthermore, to facilitate the discharge of residual liquid in the pipelines, the first pipeline group 34, the second pipeline group 35, and the third pipeline group 36 are respectively connected to low-point pipelines and low-point valves (16, 32, 33) for their control.

[0025] To facilitate understanding, the process of circulating and filtering alkaline and acidic solutions is described below:

[0026] Alkali solution circulation filtration:

[0027] The recovered alkali solution is temporarily stored in the recovered alkali solution storage tank 1. After opening valves (2, 10), the alkali solution is pressurized and increased through the circulation pump 12, flowing through valve 14 and filter 15. The liquid after the solid particles are intercepted by the filter 15 enters the membrane module 17. The manifold liquid returns to the recovered alkali solution storage tank 1 through valve 18, reflux flow meter 19, and valve 22, and is circulated and filtered until it reaches the clear liquid state.

[0028] After being filtered by membrane module 17, the clear liquid enters the alkaline solution storage tank 25 for temporary storage via clear liquid flow meter 8 and valve 24, and then flows through valve 26 and transfer pump 27 to the alkaline solution reuse system.

[0029] When 85-90% of the alkaline filtration solution has been recovered, the circulating filtration stops. The concentrated alkaline solution in the alkaline solution storage tank 1 is pressurized by the circulating pump 12 and flows through the valve 13 after passing through valves (2, 10). The concentrated alkaline solution is then transported to the concentrated solution collection tank through the circulating waste liquid discharge pipeline, where it is mixed with the concentrated acid solution produced by the subsequent filtration. After the acid and alkali are balanced, it is discharged into the sewage system.

[0030] Acid circulation filtration:

[0031] The recovered acid is temporarily stored in the recovered acid storage tank 3. After opening valves (4, 10), the acid is pressurized and flows through valve 14 and filter 15 by the circulation pump 12. The liquid after the solid particles are intercepted by the filter 15 enters the membrane module 17. The manifold flows back to the recovered acid storage tank 3 through valve 18, reflux flow meter 19, and valve 21, and is circulated and filtered until it is clear.

[0032] After being filtered by membrane module 17, the clear liquid enters the treated acid storage tank 29 via clear liquid flow meter 8 and valve 28 for temporary storage, and then flows through tank valve 30 and transfer pump 31 to be delivered to the acid reuse system.

[0033] When 90-95% of the acid filtration solution has been recovered, the circulating filtration stops. The concentrated acid solution in the acid recovery storage tank 3 is pressurized by the circulating pump 12 and flows through the valve 13 after passing through valves (4, 10). The concentrated acid solution is then transported to the concentrated solution collection tank through the circulating waste liquid discharge pipeline, where it is mixed with the concentrated alkali solution produced by the previous filtration. After the acid and alkali are balanced, the solution is discharged into the sewage system.

[0034] Example 2

[0035] The CIP cleaning fluid recovery device provided in this embodiment has a roughly the same structure as that in Embodiment 1. For the sake of simplicity, only the differences will be described in detail here.

[0036] In this embodiment, the CIP cleaning fluid recovery device is capable of self-cleaning. Based on this, the CIP cleaning fluid recovery device also includes a cleaning tank 5. The discharge end of the cleaning tank 5 is connected to the main recovery fluid pipeline via a cleaning discharge pipe 37, and this connection end is located at the front end of the circulating pump 12. The cleaning discharge pipe 37 is equipped with a valve 9. The cleaning tank 5 has two return ends. One return end is connected to the main circulating fluid pipeline via a first cleaning return pipe 38, and the other return end is connected to the main clean fluid pipeline via a second cleaning return pipe 39. The first cleaning return pipe 38 is equipped with a valve 20, and the second cleaning return pipe 39 is equipped with a valve 23.

[0037] The cleaning discharge pipe 37 is also connected to a cleaning water drain pipe, and a valve 11 is provided on the cleaning water drain pipe.

[0038] For ease of understanding, the self-cleaning process of the device is described below:

[0039] First, open the low-point valves (16, 32, 33) to drain the residual liquid in each pipeline, then close them.

[0040] Pure water (55-60℃) is quantitatively added into the cleaning tank 5. After opening valve 9, the cleaning water is pressurized and increased through the circulation pump 12, flowing through valve 14 and filter 15. The cleaning water after being intercepted by solid particles by filter 15 enters the membrane module 17. The manifold is discharged through valve 18 and low point valve 32 to flush away the residual acid and alkali in the system. Then, low point valve 32 is closed, and the cleaning water returns to the cleaning tank 5 through return flow meter 19 and valve 20 for circulation cleaning.

[0041] After being filtered by membrane module 17, the cleaning water is discharged through the clear liquid flow meter 8 and the low point valve 33 to flush away the residual acid and alkali in the system. Then, the low point valve 33 is closed, and the cleaning water returns to the circulation tank through valve 23 for continuous cleaning.

[0042] Example 3

[0043] The CIP cleaning fluid recovery device provided in this embodiment has a roughly the same structure as that in Embodiment 2. For the sake of simplicity, only the differences will be described in detail here.

[0044] In this embodiment, the CIP cleaning fluid recovery device also includes a reagent tank 6, which is connected to the cleaning tank 5 via a reagent pipeline. The reagent pipeline is connected to a metering pump 7 for quantitative reagent control.

[0045] When the cleaning effect is not as expected, cleaning agents can be added to assist the cleaning process. The required agents are added to the agent tank 6 and pumped quantitatively into the cleaning tank 5 via the metering pump 7, participating in the cleaning circulation system to clean the filter-related components. After the agent cleaning is completed, the pure water cleaning mode described in Example 2 is used until the agent concentration is reduced to the required level, so that the next alkaline (acid) solution filtration can be performed.

[0046] The CIP cleaning fluid recovery device provided by this invention can recycle and reuse the recovered alkaline and acidic cleaning fluids through the membrane module 17. The main active components in the cleaning fluid, water, acid, or alkali, can pass through the membrane module 17. The recovered alkaline solution can be reused for CIP cleaning of production equipment by quantitatively adding alkaline cleaning agent to adjust its concentration. The recovered acidic cleaning agent can be used directly. On the other hand, this device can also achieve self-circulation cleaning by setting up the cleaning tank 5 and the reagent tank 6.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A CIP cleaning solution recovery apparatus, characterized by, The application relates to a CIP cleaning liquid recovery device. The CIP cleaning liquid recovery device comprises a recovery liquid storage tank, a membrane assembly and a clear liquid storage tank, the discharge end of the recovery liquid storage tank is connected to the feed end of the membrane assembly through a first pipeline group, the membrane assembly is provided with two discharge ends, one of the discharge ends is connected to the recovery end of the recovery liquid storage tank through a second pipeline group, and the other discharge end is connected to the feed end of the clear liquid storage tank through a third pipeline group, and the first pipeline group is connected with a circulating pump. The first pipeline group, the second pipeline group and the third pipeline group are respectively connected with low point pipelines and low point valves for controlling the low point pipelines.

2. The CIP cleaning solution recovery apparatus of claim 1, wherein The first pipeline group is further connected with a circulating waste liquid discharge pipeline.

3. The CIP cleaning solution recovery apparatus of claim 1, wherein, The first pipeline group is further connected with a filter, and the filter is arranged at the front end of the membrane assembly.

4. The CIP cleaning solution recovery apparatus of claim 1, wherein The recovery liquid storage tank comprises a recovery alkali liquid storage tank and a recovery acid liquid storage tank, and the clear liquid storage tank comprises a treatment alkali liquid storage tank and a treatment acid liquid storage tank.

5. The CIP cleaning solution recovery apparatus of claim 1, wherein, The CIP cleaning liquid recovery device further comprises a cleaning tank, the discharge end of the cleaning tank is connected to the first pipeline group through a cleaning discharge pipeline, and the cleaning tank is provided with two recovery ends, one of the recovery ends is connected to the second pipeline group through a first cleaning recovery pipeline, and the other recovery end is connected to the third pipeline group through a second cleaning recovery pipeline.

6. The CIP cleaning solution recovery apparatus of claim 5, wherein, The CIP cleaning liquid recovery device further comprises a medicament tank, and the medicament tank is connected to the cleaning tank through a medicament pipeline.

7. The CIP cleaning solution recovery apparatus of claim 6, wherein, The medicament pipeline is connected with a metering pump.

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