Circulating refrigeration device

Abstract

The utility model relates to the technical field of special paper production, and discloses a circulating refrigerating device which comprises a tank body, an air leakage opening is formed in the top of the tank body, a circulating heat exchange assembly is arranged on the outer wall of the upper portion of the tank body, and the circulating heat exchange assembly comprises a plurality of groups of circulating exchange pipes wound on the outer wall of the tank body. An upper circulating water inlet flange is arranged at the inlet end of each group of circulating exchange pipes, an upper circulating water outlet flange is arranged at the outlet end of each group of circulating exchange pipes, a plurality of groups of circulating exchange plates are mounted on the bottom wall of the tank body, and the circulating exchange plates are bent and are hollow; the front end and the side end of the circulation exchange plate are connected with a lower circulation water inlet flange and a lower circulation water outlet flange respectively. Through the arrangement of the circulating heat exchange assembly, the temperature of the pulp in the pulping process can be effectively reduced, so that fibers are protected from being damaged, and the physical performance of paper is improved. Meanwhile, the circulating refrigeration function of the device is beneficial to inhibiting the growth of microorganisms, so that the sanitary condition of the pulp is ensured, and the safety risk in the production process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of specialty paper production technology, specifically a circulating refrigeration device. Background Technology

[0002] In the production of specialty papers, certain pulps require a high degree of freeness to achieve specific performance indicators. The pulp generates a significant amount of heat during the beating process. If this heat is not cooled and dissipated in a timely manner, it can lead to accelerated cell wall breakage, affecting paper quality. Conventional pulp tank designs and production processes generally do not consider cooling measures. Due to the lack of effective temperature control, prolonged beating at high temperatures can damage fibers, consequently affecting paper strength, smoothness, and other physical properties. Furthermore, high-temperature environments can accelerate microbial growth, affecting the hygiene of the pulp and even causing safety issues during production.

[0003] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a circulating refrigeration device. Utility Model Content

[0004] The purpose of this invention is to provide a circulating refrigeration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A circulating refrigeration device includes a tank with a vent at the top. A circulating heat exchange assembly is installed on the upper outer wall of the tank. The circulating heat exchange assembly includes multiple sets of circulating exchange pipes wound around the outer wall of the tank. Each set of circulating exchange pipes has an upper circulating water inlet flange at its inlet end and an upper circulating water outlet flange at its outlet end. Multiple sets of circulating exchange plates are installed on the bottom wall of the tank. The circulating exchange plates are bent and hollow inside. A lower circulating water inlet flange and a lower circulating water outlet flange are connected to the front and side ends of the circulating exchange plates, respectively.

[0007] As a preferred technical solution, both the upper and lower circulation inlet flanges are connected to the output end of the circulation pump, and the input end of the circulation pump is connected to the cold water tank. Both the upper and lower circulation outlet flanges are connected to the cold water tank through pipelines, thereby achieving circulation.

[0008] As a preferred technical solution, the top of the tank is provided with multiple sets of reinforcing ribs, the top edge of the tank is provided with multiple sets of lifting lugs, and the bottom edge of the tank is provided with multiple sets of support legs.

[0009] As a preferred technical solution, multiple sets of channel steel are installed on the outer wall of the tank. The channel steel is used to fix the tank and provide support. A level gauge, a propeller port, and a manhole are installed on the outer wall of the tank.

[0010] As a preferred technical solution, the circulating exchange pipe and circulating exchange plate are both made of copper and are used for rapid heat exchange and cooling of the outer wall of the tank and the slurry inside.

[0011] As a preferred technical solution, the inner wall of the tank is coated with an anti-corrosion coating to protect the tank from slurry corrosion and extend its service life.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention relates to a circulating cooling device. Through the installation of a circulating heat exchange component, it effectively reduces the temperature of the pulp during the beating process, thereby protecting the fibers from damage and improving the physical properties of the paper. Simultaneously, the circulating cooling function of this device helps inhibit microbial growth, ensuring the hygiene of the pulp and avoiding safety risks during production. This invention features a reasonable structural design, is easy to install and maintain, and has excellent corrosion resistance, enabling it to meet the stringent process requirements of specialty paper production and significantly improving production efficiency and product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a circulating refrigeration device;

[0015] Figure 2 A top view schematic diagram of a circulating refrigeration device;

[0016] Figure 3 A top view of the internal structure of a tank in a circulating refrigeration device;

[0017] Figure 4 This is a top view of the internal structure of a tank in a circulating refrigeration device.

[0018] In the attached diagram, the following are the reference numerals: 1. Tank body; 11. Vent port; 12. Support leg; 13. Lower manhole; 14. Lifting lug; 15. Channel steel; 16. Propeller port; 17. Level gauge; 18. Reinforcing rib; 21. Circulation exchange pipe; 22. Upper circulation inlet flange; 23. Upper circulation outlet flange; 24. Circulation exchange plate; 25. Lower circulation inlet flange; 26. Lower circulation outlet flange. Detailed Implementation

[0019] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a circulating refrigeration device technical solution: it includes a tank 1, which is the main component of the pulp tank circulating refrigeration device. Its design should ensure sufficient strength and stability to withstand the weight of the pulp and pressure changes during the circulating refrigeration process. The material of the tank 1 can be stainless steel or other corrosion-resistant materials to meet the stringent process requirements in specialty paper production. A vent 11 is provided at the top of the tank 1 to discharge any gases that may be generated during the pulping process.

[0021] A circulating heat exchange assembly is installed on the upper outer wall of tank 1, comprising multiple sets of circulating exchange pipes 21. These circulating exchange pipes 21 are wound around the outer wall of the tank to form an effective heat exchange area. Each set of circulating exchange pipes 21 has an upper circulating water inlet flange 22 and an upper circulating water outlet flange 23 at its inlet and outlet ends, respectively. Multiple sets of circulating exchange plates 24 are installed on the bottom wall of tank 1. These circulating exchange plates 24 are bent and hollow inside to increase heat exchange efficiency. The front and side ends of the circulating exchange plates 24 are connected to a lower circulating water inlet flange 25 and a lower circulating water outlet flange 26, respectively.

[0022] Both the upper circulation inlet flange 22 and the lower circulation inlet flange 25 are connected to the output end of the circulation pump, and the input end of the circulation pump is connected to the cold water tank. The upper circulation outlet flange 23 and the lower circulation outlet flange 26 are connected to the cold water tank through pipes to form a closed circulation system to achieve continuous cooling of the slurry.

[0023] The top of the tank body 1 is provided with multiple sets of reinforcing ribs 18 to enhance the structural strength of the tank body. Multiple sets of lifting lugs 14 are provided at the top edge of the tank body for easy installation and movement. Multiple sets of support legs 12 are provided at the bottom edge of the tank body to support the entire tank body and ensure its stability.

[0024] Multiple sets of channel steel 15 are installed on the outer wall of the tank to secure the tank and provide additional support. A level gauge 17, a thruster port 16, and a manhole 13 are also installed on the outer wall of the tank; these components help monitor and maintain the internal condition of the tank.

[0025] Both the circulating heat exchange tube 21 and the circulating heat exchange plate 24 are made of copper, as copper has excellent thermal conductivity and can effectively facilitate heat exchange. The inner wall of the tank is coated with an anti-corrosion coating to protect the tank from slurry corrosion and extend its service life.

[0026] This invention effectively reduces the temperature of the pulp during the beating process, protecting the fibers from damage and improving the physical properties of the paper. Simultaneously, the device's circulating cooling function helps inhibit microbial growth, ensuring the hygiene of the pulp and avoiding safety risks during production. The device has a reasonable structural design, is easy to install and maintain, has good corrosion resistance, and can meet the stringent process requirements of specialty paper production, significantly improving production efficiency and product quality.

[0027] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A circulating refrigeration device, characterized in that, The tank (1) includes a vent (11) at the top of the tank (1) and a circulating heat exchange assembly on the upper outer wall of the tank (1). The circulating heat exchange assembly includes multiple sets of circulating exchange pipes (21) wound around the outer wall of the tank (1). Each set of circulating exchange pipes (21) has an upper circulating water inlet flange (22) at the inlet end and an upper circulating water outlet flange (23) at the outlet end. Multiple sets of circulating exchange plates (24) are installed on the bottom wall of the tank (1). The circulating exchange plates (24) are bent and hollow inside. The front and side ends of the circulating exchange plates (24) are respectively connected to a lower circulating water inlet flange (25) and a lower circulating water outlet flange (26).

2. The circulating refrigeration device according to claim 1, characterized in that: The upper circulation inlet flange (22) and the lower circulation inlet flange (25) are both connected to the output end of the circulation pump, and the input end of the circulation pump is connected to the cold water pool. The upper circulation outlet flange (23) and the lower circulation outlet flange (26) are both connected to the cold water pool through pipelines to achieve circulation.

3. The circulating refrigeration device according to claim 1, characterized in that: The top of the tank (1) is provided with multiple sets of reinforcing ribs (18), and the top edge of the tank (1) is provided with multiple sets of lifting lugs (14), and the bottom edge of the tank (1) is provided with multiple sets of support legs (12).

4. The circulating refrigeration device according to claim 1, characterized in that: The outer wall of the tank (1) is equipped with multiple sets of channel steel (15), which are used to fix the tank (1) and provide support. The outer wall of the tank (1) is equipped with a level gauge (17), a thruster port (16), and a manhole (13).

5. A circulating refrigeration device according to claim 4, characterized in that: The circulating exchange pipe (21) and circulating exchange plate (24) are both made of copper and are used for rapid heat exchange and cooling of the outer wall and the slurry inside the tank (1).

6. A circulating refrigeration device according to claim 1, characterized in that: The inner wall of the tank (1) is coated with an anti-corrosion coating to protect the tank (1) from slurry corrosion and extend its service life.

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