Jacket scaling cleaning system of concentrated milk storage tank
By designing a concentrated milk storage tank jacket cleaning system that combines a circulating pump and a steam generator, the problems of decreased heat transfer performance and high cleaning difficulty caused by scale buildup in the jacket were solved, achieving a highly efficient scale cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-07
AI Technical Summary
Scale buildup inside the jacket of concentrated milk storage tanks reduces heat transfer performance, increases the risk of explosion, and makes cleaning difficult; existing cleaning systems are inconvenient to operate.
A cleaning system comprising a water tank, a jacketed water tank, a circulating pump, and a steam generator was designed. The system softens and rinses away scale by combining the use of descaling liquid delivered by the circulating pump with high-temperature steam jets, thereby improving cleaning efficiency.
It effectively reduces the difficulty of cleaning limescale, improves cleaning efficiency, reduces manual labor intensity, and saves cleaning time.
Smart Images
Figure CN224087518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water tank descaling technology, and in particular to a jacket scale cleaning system for concentrated milk storage tanks. Background Technology
[0002] Milk is hailed as the most perfect food, often called "white blood," and is an essential nutrient for all mammals, including humans. In recent years, with the continuous improvement of cold chain infrastructure and the increasing health and nutrition awareness of consumers, concentrated milk has become a popular choice. The equipment for a concentrated milk production line includes a milk receiving and cooling system, raw milk storage tanks, a milk separator, an RO membrane concentration system, a concentrated milk storage tank, a milk dispensing and metering system, a metering tank, a pasteurization system, a deaeration tank, a homogenizer, a waiting-to-be-filled tank, and a filling machine. The concentrated milk production process includes: raw milk → cooling → milk purification → storage (2-6℃) → RO concentration → metering → heating (65-70℃) → deaeration (-0.7--0.8 bar) → homogenization (200 bar) → sterilization (75℃, 15s) → cooling (2-6℃) → waiting-to-be-filled → filling → refrigeration (2-6℃) → shipping (2-6℃). During the storage process, concentrated milk requires heating and cooling treatments, which causes the circulating liquid in the jacket of the concentrated milk storage tank to easily form scale on the jacket and the inner wall of the tank. Scale is commonly known as "water scale," and its main components are inorganic compounds composed of calcium carbonate, magnesium carbonate, and other calcium and magnesium ions.
[0003] Currently, the scale buildup inside the jacket of concentrated milk storage tanks has very poor thermal conductivity, which worsens heat transfer on the heated surfaces, resulting in significant energy waste. Secondly, scale adhering to the heated surfaces of the inner tank can also greatly increase the risk of rupture or even explosion of the inner tank and pipes due to thermal expansion and contraction, uneven stress, and the inability to transfer heat in a timely manner. Furthermore, the narrow space within the jacket of the concentrated milk storage tank makes cleaning difficult for operators, further complicating scale removal. Utility Model Content
[0004] This invention provides a system for cleaning scale buildup in the jacket of a concentrated milk storage tank, which solves the problems of difficult cleaning, high cleaning difficulty, and incomplete cleaning of scale buildup in the jacket of traditional concentrated milk storage tanks.
[0005] This utility model provides a scaling cleaning system for the jacket of a concentrated milk storage tank, including a water tank, a jacketed water tank, a circulating pump, and a steam generator. The drain outlet of the water tank is connected to the inlet of the circulating pump via a first pipe. A circulation inlet is provided on the upper side wall of the jacketed water tank and connected to a second pipe. A first tee fitting is provided on the second pipe, and the first tee fitting is connected to the drain outlet of the circulating pump via a third pipe. A circulation outlet is provided on the lower side wall of the jacketed water tank and connected to a fourth pipe. The fourth pipe is connected to the inlet of the water tank. The jacketed water tank includes an outer shell and a steam generator. The inner liner inside the outer shell has an annular main spray pipe fitted on the upper outer wall. Multiple spray branch pipes are arranged along the circumference at the bottom of the main spray pipe. Multiple nozzles are arranged at intervals along the length of the outer and inner sides of each spray branch pipe. One end of the main spray pipe is connected to a water supply pipe provided on the side wall of the jacketed water tank. The other end of the water supply pipe is connected to the steam outlet of the steam generator through a fifth pipe. A second tee pipe joint is provided on the fourth pipe. The second tee pipe joint is connected to a sixth pipe. The fifth pipe and the third pipe are connected through a seventh pipe.
[0006] Furthermore, a level gauge is installed on the side wall of the jacketed water tank.
[0007] Preferably, a filter tank is provided on the inner side wall of the water tank, and multiple filter holes are arranged in a row on the bottom plate of the filter tank.
[0008] Furthermore, regulating valves are installed on the second, third, fourth, fifth, sixth, and seventh pipelines.
[0009] Furthermore, a slag discharge port is provided on the lower side wall of the water tank and connected to a slag discharge pipe, and a control valve is provided on the slag discharge pipe.
[0010] Preferably, the water tank is equipped with an electric heater.
[0011] As can be seen from the above technical solutions, this utility model provides a jacket scaling cleaning system for concentrated milk storage tanks.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a circulating pump to rapidly circulate descaling liquid from a water tank into the jacket of a jacketed water tank. This process soaks the scale within the jacketed water tank, causing most of the scale to automatically detach from the inner wall of the jacketed water tank and the outer wall of the outer shell. A steam generator produces high-temperature steam, which is then delivered to the main spray pipe and distributed to various branch spray pipes. The steam is then sprayed from various nozzles onto the inner wall and outer wall of the jacketed water tank, softening stubborn scale and reducing the difficulty of cleaning it. The cleaning liquid from the water tank is also delivered to the main spray pipe and distributed to various branch spray pipes. This liquid is then sprayed from various nozzles onto the inner wall and outer wall of the jacketed water tank, causing the softened scale to be rapidly flushed off by high-pressure water. The flushed scale is then discharged into the water tank through a fourth pipe for collection. This method is highly efficient at cleaning scale, reduces manual labor intensity, and saves time. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of a jacket scaling cleaning system for a concentrated milk storage tank proposed in this utility model.
[0016] Figure 2 This is a three-dimensional structural diagram of a jacket scaling cleaning system for a concentrated milk storage tank proposed in this utility model.
[0017] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the jacket water tank of a jacket scaling cleaning system for a concentrated milk storage tank proposed in this utility model.
[0018] Figure 4 Appendix to this utility model Figure 3 A partially enlarged structural diagram of position I.
[0019] In the picture:
[0020] 1-Water tank; 11-First tee pipe connector;
[0021] 2-Jacketed water tank; 20-Outer shell; 21-Inner tank; 22-Main sprinkler pipe; 23-Branch sprinkler pipe; 24-Sprinkler head; 25-Water supply pipe; 26-Level gauge;
[0022] 3- Circulation pump;
[0023] 4-Steam generator;
[0024] 5-Filter tank;
[0025] 101 - First pipe; 102 - Second pipe; 103 - Third pipe; 104 - Fourth pipe; 105 - Fifth pipe; 106 - Sixth pipe. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0027] Example 1:
[0028] See Figure 1-4A scaling cleaning system for a concentrated milk storage tank includes a water tank 1, a jacketed water tank 2, a circulating pump 3, and a steam generator 4. The drain outlet of the water tank 1 is connected to the inlet of the circulating pump 3 via a first pipe 101. A circulation inlet is provided on the upper side wall of the jacketed water tank 2 and connected to a second pipe 102. A first tee connector 11 is provided on the second pipe 102 and is connected to the drain outlet of the circulating pump 3 via a third pipe 103. A circulation outlet is provided on the lower side wall of the jacketed water tank 2 and connected to a fourth pipe 104. The fourth pipe 104 is connected to the inlet of the water tank 1. The jacketed water tank 2 includes an outer shell 20 and a steam generator 4 disposed inside the outer shell 20. The inner liner 21 has an annular main spray pipe 22 fitted on the upper outer wall. Multiple spray branch pipes 23 are arranged along the circumference at the bottom of the main spray pipe 22. Multiple nozzles 24 are arranged at intervals along the length of the outer and inner sides of each spray branch pipe 23. One end of the main spray pipe 22 is connected to a water supply pipe 25 arranged on the side wall of the jacketed water tank 2. The other end of the water supply pipe 25 is connected to the outlet of the steam generator 4 through the fifth pipe 105. A second tee pipe joint 12 is arranged on the fourth pipe 104. The second tee pipe joint 12 is connected to the sixth pipe 106. The fifth pipe 105 and the third pipe 103 are connected through the seventh pipe 107. The descaling liquid in the water tank 1 is circulated to the jacket of the jacketed water tank 2 by the circulating pump 3, and the scale in the jacketed water tank 2 is soaked to remove most of the scale from the inner wall of the jacketed water tank 2 and the outer wall of the jacketed water tank 2. High-temperature steam is generated by the steam generator 4 and delivered to the main spray pipe 22 and distributed to each spray branch pipe 23. The steam is then sprayed from each nozzle 24 onto the inner wall and outer wall of the jacketed water tank 2, removing stubborn scale. The cleaning solution softens the scale, reducing the difficulty of cleaning stubborn scale. The cleaning solution in the water tank 1 is transported to the main spray pipe 22 and distributed to each spray branch pipe 23. It is then sprayed from each nozzle 24 onto the inner wall and outer wall of the jacketed water tank 2. The softened scale is quickly flushed off by the high-pressure water and detached from the inner wall and outer wall of the jacketed water tank 2. The flushed scale is discharged into the water tank 1 through the fourth pipe 104 for collection. The scale cleaning efficiency is high, the labor intensity is reduced, and the scale cleaning time is saved.
[0029] In this embodiment, see Figure 1 A level gauge 26 is installed on the side wall of the jacketed water tank 2, which facilitates observation of the liquid level of the descaling liquid added into the jacketed water tank 2.
[0030] In this embodiment, see Figure 1 A filter tank 5 is fixedly installed on the inner wall of the water tank 1. Multiple filter holes are arranged in a row on the bottom plate of the filter tank 5. The filter tank 5 is connected to the liquid outlet of the fourth pipe 104. The filter tank 5 facilitates the filtration of sewage discharged into the water tank 1, so that the scale and water are quickly separated.
[0031] In this embodiment, see Figure 1 , 2 Adjusting valves are installed on the second pipe 102, the third pipe 103, the fourth pipe 104, the fifth pipe 105, the sixth pipe 106, and the seventh pipe 107. Adjusting the valves allows for quick control of the opening and closing of each pipe, thereby controlling the flow direction of liquids and gases.
[0032] In this embodiment, see Figure 1 A slag discharge port is provided on the lower side wall of the water tank 1 and connected to a slag discharge pipe. A control valve 13 is provided on the slag discharge pipe, and the sewage in the water tank 1 is discharged from the slag discharge pipe by controlling the slag discharge pipe through the control valve 13.
[0033] In this embodiment, an electric heater is installed in the water tank 1 to heat the descaling liquid in the water tank 1, thereby increasing the efficiency of the descaling liquid in decomposing scale.
[0034] As can be seen from the above technical solution, during use, firstly, add an appropriate amount of descaling agent and water to the water tank 1, with a ratio of descaling agent to water of 1:80. Then, stir the mixture of descaling agent and water evenly, and simultaneously heat the mixture to 80 degrees Celsius using electric heating. Next, open the regulating valve on the third pipe 103, and close the regulating valves on the second pipe 102, the fourth pipe 104, the sixth pipe 106, and the seventh pipe 107. Then, start the circulation pump 3, which will sequentially pass the descaling liquid in the water tank 1 through the first pipe 101, the third pipe 102, the fourth pipe 104, the sixth pipe 106, and the seventh pipe 107. 03. The second pipe 102 circulates the liquid to the jacket of the jacketed water tank 2. After filling the jacket of the jacketed water tank 2 with descaling liquid, the circulation pump 3 is turned off. The scale on the inner wall and outer wall of the inner tank of the jacketed water tank 2 can be mostly removed by soaking it with the descaling liquid. Then, the regulating valves on the second pipe 102 and the fourth pipe 104 are opened to discharge the wastewater in the jacket of the jacketed water tank 2 into the water tank 1 through the fourth pipe 104. After the liquid in the jacket of the jacketed water tank 2 is drained, the regulating valve on the fifth pipe 105 is opened and the seventh pipe 1 is closed. Turn on the regulating valve on 07, then start the steam generator 4. The steam generator 4 generates high-temperature steam, which is transported to the main spray pipe 22 through the fifth pipe 105 and the water supply pipe 25, and then distributed to each spray branch pipe 23. The steam is then sprayed from each nozzle 24 onto the inner wall and outer wall of the jacketed water tank 2, softening the stubborn scale and reducing the difficulty of cleaning it. Then, open the control valve 13 to discharge the wastewater in the water tank 1 through the slag discharge pipe. Next, fill the water tank 1 with clean water, and then close the third pipe 103 and the fifth pipe 22. Open the regulating valves on the fourth pipe 104 and the seventh pipe 107, and then start the circulation pump 3. The clean water in the water tank 1 is sequentially passed through the first pipe 101, the third pipe 103, the seventh pipe 107, the fifth pipe 105, the water supply pipe 25, the main spray pipe 22, and the branch spray pipe 23. Then, high-pressure water is sprayed through the nozzle 24 onto the inner wall of the jacketed water tank 2 and the outer wall of the inner tank for cleaning. This allows the softened scale to be quickly removed, resulting in high cleaning efficiency, good descaling effect, and reduced labor intensity for operators.
[0035] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.
[0036] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.
Claims
1. A jacket scaling cleaning system for a concentrated milk storage tank, comprising a water tank (1), a jacket water tank (2), a circulating pump (3), and a steam generator (4), characterized in that: The drain outlet of the water tank (1) is connected to the inlet of the circulation pump (3) through a first pipe (101). The upper side wall of the jacketed water tank (2) is provided with a circulation inlet and connected to a second pipe (102). A first tee pipe joint (11) is provided on the second pipe (102). The first tee pipe joint (11) is connected to the drain outlet of the circulation pump (3) through a third pipe (103). The lower side wall of the jacketed water tank (2) is provided with a circulation outlet and connected to a fourth pipe (104). The fourth pipe (104) is connected to the inlet of the water tank (1). The jacketed water tank (2) includes an outer shell (20) and an inner liner (21) disposed inside the outer shell (20). The upper outer wall of the inner liner (21) is fitted with an annular spray nozzle. The main spray pipe (22) is provided with multiple spray branch pipes (23) arranged along the circumferential direction at the bottom of the main spray pipe (22). Multiple nozzles (24) are arranged at intervals along the length direction on the outer and inner sides of each spray branch pipe (23). One end of the main spray pipe (22) is connected to the water supply pipe (25) arranged on the side wall of the jacketed water tank (2). The other end of the water supply pipe (25) is connected to the air outlet of the steam generator (4) through the fifth pipe (105). A second tee pipe joint (12) is arranged on the fourth pipe (104). The second tee pipe joint (12) is connected to the sixth pipe (106). The fifth pipe (105) is connected to the third pipe (103) through the seventh pipe (107).
2. The jacket scaling cleaning system for a concentrated milk storage tank according to claim 1, characterized in that, A level gauge (26) is installed on the side wall of the jacketed water tank (2).
3. The jacket scaling cleaning system for a concentrated milk storage tank according to claim 1, characterized in that, A filter tank (5) is provided on the inner wall of the water tank (1), and multiple filter holes are arranged in a row on the bottom plate of the filter tank (5).
4. The jacket scaling cleaning system for a concentrated milk storage tank according to claim 1, characterized in that, Adjusting valves are installed on the second pipe (102), the third pipe (103), the fourth pipe (104), the fifth pipe (105), the sixth pipe (106), and the seventh pipe (107).
5. The jacket scaling cleaning system for a concentrated milk storage tank according to claim 1, characterized in that, The lower side wall of the water tank (1) is provided with a slag discharge port and connected to a slag discharge pipe, and a control valve (13) is provided on the slag discharge pipe.
6. The jacket scaling cleaning system for a concentrated milk storage tank according to claim 1, characterized in that, The water tank (1) is equipped with an electric heater.