Device and method for detecting milk leakage in concentrated milk RO membrane production process

Abstract

The invention relates to a device and method for detecting milk leakage in the concentrated milk RO membrane production process, and belongs to the technical field of milk leakage detection devices.The device comprises a raw water tank, a first circulating pump, a first-stage filter, a sewage tank, a clear water tank, a second circulating pump, a second-stage filter and a turbidity meter, and the raw water tank, the first circulating pump and the first-stage filter are sequentially communicated in series; a liquid inlet hole of the sewage tank and a liquid inlet hole of the clear water tank are respectively communicated with an undersize product liquid outlet hole and an oversize product liquid outlet hole of the primary filter; a liquid inlet hole of the second circulating pump is communicated with a sewage hole of the sewage tank; and a liquid inlet hole of the secondary filter is communicated with a liquid outlet hole of the second circulating pump. Raw water in the raw water tank is filtered by the primary filter, sewage in the sewage tank is filtered by the secondary filter, and the turbidity meter is mounted at the water pipe corresponding to the undersize liquid outlet hole of the secondary filter, so that whether the raw water contains leaked milk impurities or not can be detected online in real time; and whether leakage exists in the milk production line or not is accurately judged.

Description

Technical Field

[0001] The invention relates to the technical field of leakage detection devices, and in particular to a device and method for detecting milk leakage in a concentrated milk RO membrane production process. Background Art

[0002] Food safety concerns people’s physical health. It is not only the focus of relevant national agencies, but also a red line that food manufacturers cannot cross, especially dairy product manufacturers.

[0003] At present, in order to ensure the safety of dairy products, dairy product manufacturers often use leak detectors to detect whether there is any leakage of dairy products in the dairy product production line. The commonly used leak detector is a pressure detection device, such as patent number CN1142866A, patent name, a method for detecting leakage between first and second fluid paths that are physically separated from each other and adjacently arranged. In this patent, an electronic device is used to monitor the positive pressure difference between the donor fluid and the acceptor fluid, so as to determine whether there is leakage in the production system; however, the above-mentioned pressure detection leak detection method can only detect leakage of larger values. When there is a slight leakage in the system, it is not easy to be detected, resulting in a significant increase in the scrap rate of dairy products, affecting the normal operation of the enterprise.

[0004] Therefore, how to design a device and method for detecting milk leakage in the concentrated milk RO membrane production process with high detection accuracy is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The invention provides a device for detecting milk leakage in a concentrated milk RO membrane production process, which solves the technical problem that the leakage detection accuracy of the existing pressure leakage detection device is relatively low.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a device for detecting milk leakage in the concentrated milk RO membrane production process, comprising: a raw water tank, a first circulation pump, a primary filter, a sewage tank, a clean water tank, a second circulation pump, a secondary filter, a turbidity meter and a controller.

[0007] The liquid outlet and liquid inlet of the raw water tank, the first circulation pump and the primary filter are connected in series in sequence through a water pipe; the liquid inlet of the sewage tank is connected to the undersize liquid outlet of the primary filter; the liquid inlet of the clean water tank is connected to the oversize liquid outlet of the primary filter; the liquid inlet of the second circulation pump is connected to the sewage hole of the sewage tank; the liquid inlet of the secondary filter is connected to the liquid outlet of the second circulation pump and its undersize liquid outlet is directly discharged through a water pipe, and its oversize liquid outlet is connected to the liquid inlet of the clean water tank; the turbidity meter is installed at the water pipe corresponding to the undersize liquid outlet of the secondary filter; the controller is electrically connected to the first circulation pump, the primary filter, the secondary filter and the turbidity meter respectively.

[0008] The beneficial effects of the present invention are as follows: the traditional milk product leakage detection method is overturned, the raw water in the raw water tank is first filtered by a primary filter, and the obtained sewage is passed into a sewage tank; then the sewage in the sewage tank is filtered by a secondary filter to obtain sewage in the sewage. Since the turbidity meter is installed at the water pipe corresponding to the liquid outlet hole of the secondary filter, when the sewage is directly discharged, it can be detected online in real time whether the raw water contains leaked milk impurities, accurately determine whether there is leakage in the dairy production line, and improve the safety of the dairy production line.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, it also includes a third circulation pump, the liquid inlet of the third circulation pump is connected to the liquid outlet of the clean water tank, the first liquid outlet of the third circulation pump is connected to the liquid inlet of the sewage tank, and the second liquid outlet of the third circulation pump is connected to the liquid inlet of the raw water tank.

[0011] The above method has the following further beneficial effects: utilizing a connecting pipe between the liquid inlet of the third circulation pump and the liquid outlet of the clean water tank; since the liquid outlet of the third circulation pump is respectively connected to the liquid inlet of the sewage tank and the liquid inlet of the raw water tank, clean water can be used to reversely clean the sewage tank and the raw water tank, thereby preventing the original impurities from affecting the leak detection results during the next leak detection.

[0012] Furthermore, the first-stage filters are two connected in parallel.

[0013] Furthermore, the sewage hole is arranged at the bottom end of the sewage tank.

[0014] Furthermore, it also includes a cooling water tank, and the water outlet pipe of the clean water tank is connected to the cooling water tank.

[0015] In addition, a method for detecting milk leakage in the concentrated milk RO membrane production process is provided, and the specific steps are as follows:

[0016] S1. Use the first circulation pump to pump out the raw water in the raw water tank, and then pass it into the primary filter for filtration;

[0017] S2, after being filtered through the primary filter, the clean water obtained is passed into the clean water tank, and the wastewater obtained is passed into the wastewater tank;

[0018] S3, first use the second circulation pump to pump out the sewage in the sewage tank, and then pass it into the secondary filter for filtration;

[0019] S4. After being filtered by the secondary filter, the clean water obtained is passed into the clean water tank, and the sewage obtained is discharged from the undersize outlet of the secondary filter. At the same time, a turbidity meter installed at the water pipe corresponding to the undersize outlet of the secondary filter detects the turbidity of the sewage.

[0020] The beneficial effects of the present invention are as follows: the traditional milk product leakage detection method is overturned, the raw water in the raw water tank is first filtered by a primary filter, and the obtained sewage is passed into a sewage tank; then the sewage in the sewage tank is filtered by a secondary filter to obtain sewage in the sewage. Since the turbidity meter is installed at the water pipe corresponding to the liquid outlet hole of the secondary filter, when the sewage is directly discharged, it can be detected online in real time whether the raw water contains leaked milk impurities, accurately determine whether there is leakage in the dairy production line, and improve the safety of the dairy production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic structural diagram of a device for detecting milk leakage in a concentrated milk RO membrane production process.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Raw water tank, 2. First circulation pump, 3. Primary filter, 4. Sewage tank, 5. Clean water tank, 6. Second circulation pump, 7. Secondary filter, 8. Turbidimeter, 9. Controller, 10. Third circulation pump, 11. Cooling water tank. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] like Figure 1 As shown, a device for detecting milk leakage in the concentrated milk RO membrane production process comprises: a raw water tank 1, a first circulation pump 2, a primary filter 3, a sewage tank 4, a clean water tank 5, a second circulation pump 6, a secondary filter 7, a turbidity meter 8 and a controller 9.

[0026] The liquid outlets and liquid inlets of the raw water tank 1, the first circulation pump 2 and the primary filter 3 are connected in series in sequence through water pipes; the liquid inlet of the sewage tank 4 is connected with the undersize liquid outlet of the primary filter 3; the liquid inlet of the clean water tank 5 is connected with the oversize liquid outlet of the primary filter 3; the liquid inlet of the second circulation pump 6 is connected with the sewage hole of the sewage tank 4; the liquid inlet of the secondary filter 7 is connected with the liquid outlet of the second circulation pump 6 and its undersize liquid outlet is directly discharged through a water pipe, and its oversize liquid outlet is connected with the liquid inlet of the clean water tank 5; the turbidity meter 8 is installed at the water pipe corresponding to the undersize liquid outlet of the secondary filter 7; the controller 9 is electrically connected to the first circulation pump 2, the primary filter 3, the secondary filter 7 and the turbidity meter 8 respectively.

[0027] In some specific embodiments, a third circulation pump 10 may also be included, wherein the liquid inlet of the third circulation pump 10 is connected to the liquid outlet of the clean water tank 5 and the first liquid outlet is connected to the liquid inlet of the sewage tank 4 , and the second liquid outlet is connected to the liquid inlet of the raw water tank 1 .

[0028] In some specific embodiments, there may be two primary filters 3 connected in parallel.

[0029] In some specific embodiments, a cooling water tank 11 is further included, and a water outlet pipe of the clean water tank 5 is connected to the cooling water tank 11 .

[0030] Specifically, the sewage hole is arranged at the bottom end of the sewage tank 4 .

[0031] In addition, a method for detecting milk leakage in the concentrated milk RO membrane production process is provided, and the specific steps are as follows:

[0032] S1, first use the first circulation pump 2 to pump out the raw water in the raw water tank 1, and then pass it into the primary filter 3 for filtering;

[0033] S2, after being filtered through the primary filter 3, the clean water obtained is passed into the clean water tank 5, and the wastewater obtained is passed into the wastewater tank 4;

[0034] S3, first use the second circulation pump 6 to pump out the sewage in the sewage tank 4, and then pass it into the secondary filter 7 for filtering;

[0035] S4. After being filtered by the secondary filter 7, the obtained clean water is passed into the clean water tank 5, and the obtained sewage is discharged from the undersize outlet of the secondary filter 7. At the same time, the turbidity meter 8 installed at the water pipe corresponding to the undersize outlet of the secondary filter 7 detects the turbidity of the sewage.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting milk leakage in the concentrated milk RO membrane production process, characterized in that: include: A raw water tank (1), a first circulation pump (2), a primary filter (3), a sewage tank (4), a clean water tank (5), a second circulation pump (6), a secondary filter (7), a turbidity meter (8) and a controller (9), The liquid outlets and liquid inlets of the raw water tank (1), the first circulating pump (2) and the first filter (3) are connected in series in sequence through a water pipe; the liquid inlet of the sewage tank (4) is connected to the undersize liquid outlet of the first filter (3); the liquid inlet of the clean water tank (5) is connected to the oversize liquid outlet of the first filter (3); the liquid inlet of the second circulating pump (6) is connected to the sewage hole of the sewage tank (4); the liquid inlet of the second filter (7) is connected to the liquid outlet of the second circulating pump (6) and its undersize liquid outlet is directly discharged through a water pipe, and its oversize liquid outlet is connected to the liquid inlet of the clean water tank (5); the turbidity meter (8) is installed at the water pipe corresponding to the undersize liquid outlet of the second filter (7); the controller (9) is electrically connected to the first circulating pump (2), the first filter (3), the second filter (7) and the turbidity meter (8) respectively.

2. The device for detecting milk leakage in the concentrated milk RO membrane production process according to claim 1, characterized in that: It also includes a third circulation pump (10), the liquid inlet of the third circulation pump (10) is connected to the liquid outlet of the clean water tank (5), the first liquid outlet of the third circulation pump (10) is connected to the liquid inlet of the sewage tank (4), and the second liquid outlet of the third circulation pump (10) is connected to the liquid inlet of the raw water tank (1).

3. The device for detecting milk leakage in the concentrated milk RO membrane production process according to claim 1, characterized in that: The primary filters (3) are two connected in parallel.

4. The device for detecting milk leakage in the concentrated milk RO membrane production process according to claim 1, characterized in that: The sewage hole is arranged at the bottom end of the sewage tank (4).

5. The device for detecting milk leakage in the concentrated milk RO membrane production process according to claim 1, characterized in that: It also includes a cooling water tank (11), and the water outlet pipe of the clean water tank (5) is connected to the cooling water tank (11).

6. A method for detecting milk leakage in the concentrated milk RO membrane production process, characterized in that: The device for detecting milk leakage in the concentrated milk RO membrane production process according to any one of claims 1 to 5 is provided, and the specific steps are as follows: S1, first use the first circulation pump (2) to pump out the raw water in the raw water tank (1), and then pass it into the primary filter (3) for filtering; S2, after being filtered by the primary filter (3), the obtained clean water is passed into the clean water tank (5), and the obtained sewage is passed into the sewage tank (4); S3, first use the second circulation pump (6) to pump out the sewage in the sewage tank (4), and then pass it into the secondary filter (7) for filtering; S4. After being filtered by the secondary filter (7), the obtained clean water is passed into the clean water tank (5), and the obtained sewage is discharged from the undersize outlet of the secondary filter (7). At the same time, a turbidity meter (8) installed at the water pipe corresponding to the undersize outlet of the secondary filter (7) detects the turbidity of the sewage.

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