A cooling device special for papermaking sewage S vortex runner sewage

Abstract

This invention provides a special cooling device for papermaking wastewater using an S-shaped vortex flow channel. It includes an intermediate cooling plate structure, comprising an intermediate cooling plate body. The top and bottom of the intermediate cooling plate body are provided with vortex pipe grooves, and the top and bottom of the intermediate cooling plate body are also provided with fixing grooves. The vortex pipe grooves are bent. This invention utilizes the interlocking of the intermediate cooling plate body, top cooling plate, and bottom cooling plate, and the close contact between the vortex pipe grooves to form a space for wastewater flow. Subsequently, when impurities from the papermaking wastewater settle into the interior of the vortex pipe grooves, the inner walls of the vortex pipe grooves can be cleaned simply by separating the intermediate cooling plate body, top cooling plate, and bottom cooling plate.

Description

Technical Field

[0001] This utility model belongs to the field of papermaking technology, specifically relating to a special cooling device for papermaking wastewater via an S-vortex flow channel. Background Technology

[0002] In the papermaking industry, wastewater treatment is a crucial step in ensuring environmental compliance and resource reuse. Because papermaking wastewater typically contains large amounts of fiber, chemical additives, and organic impurities, and is discharged at high temperatures (often exceeding 50°C) after processes such as high-temperature cooking and bleaching, it must be cooled to a suitable range (e.g., below 30°C) before direct discharge or further treatment. Failure to effectively cool the wastewater will not only increase the load on subsequent biological treatment units, affecting treatment efficiency, but may also lead to problems such as pipe corrosion, accelerated equipment aging, and even violations of environmental regulations due to excessive temperatures.

[0003] In recent years, some studies have attempted to improve heat transfer efficiency by optimizing flow channel structures to address the heat exchange requirements of fluids with high solid content. For example, methods such as using corrugated plates, spiral channels, or adding turbulence promoters have been employed to enhance fluid turbulence. However, these improvements still face challenges in paper mill wastewater scenarios: the contradiction between structural complexity and ease of maintenance has not been effectively resolved, most units are difficult to disassemble and clean, and they are ill-suited to the continuous production needs of paper mills. Utility Model Content

[0004] Purpose of utility model

[0005] To address the aforementioned technical problems, this utility model provides a special cooling device for papermaking wastewater via an S-vortex flow channel, which solves the technical problems mentioned in the background art.

[0006] Technical solution

[0007] To achieve the above objectives, the technical solution provided by this utility model is a special cooling device for papermaking wastewater S-vortex flow channel, including an intermediate cooling plate structure, a top cooling plate at the bottom of the intermediate cooling plate structure, a bottom cooling plate at the top of the intermediate cooling plate structure, and a heat dissipation plate structure between the intermediate cooling plate structure, the top cooling plate and the bottom cooling plate.

[0008] An intermediate cooling plate structure includes an intermediate cooling plate body, with vortex pipe grooves opened at the top and bottom of the intermediate cooling plate body, and fixing installation grooves opened at the top and bottom of the intermediate cooling plate body, wherein the vortex pipe grooves are bent.

[0009] Preferably, the top and bottom of the top cooling plate and the bottom cooling plate are provided with vortex pipe grooves, and the vortex pipe grooves inside the top cooling plate and the bottom cooling plate are aligned with the vortex pipe grooves inside the body of the intermediate cooling plate.

[0010] Preferably, threaded holes are provided at the four corners of the intermediate cooling plate structure, the top cooling plate and the bottom cooling plate, and bolts are provided inside the threaded holes. A sealing gasket is provided between the intermediate cooling plate structure, the top cooling plate and the bottom cooling plate.

[0011] Preferably, the heat sink structure includes a heat-conducting strip and a conductive strip. The outer wall of the heat-conducting strip is fitted with the inner wall of the fixing mounting groove. A placement groove is opened inside one end of the heat-conducting strip. The heat-conducting strip is supported by a heat-conducting material.

[0012] Preferably, one end of the conductive strip is provided with a threaded rod, and an adjusting nut is threadedly connected to the outer wall of the threaded rod, and the adjusting nut is threadedly connected to the placement groove.

[0013] Preferably, one end of the threaded rod is provided with a heat sink body, the heat sink body has an air guide groove inside, and the heat sink body has a heat dissipation pipe inside.

[0014] Beneficial effects

[0015] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0016] This invention features an intermediate cooling plate body, a top cooling plate, and a bottom cooling plate that work together, and vortex pipe channels that fit together to form a space for wastewater to flow. When impurities from the papermaking wastewater settle into the vortex pipe channels, the inner walls of the vortex pipe channels can be cleaned simply by separating the intermediate cooling plate body, the top cooling plate, and the bottom cooling plate. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a three-dimensional view of the intermediate cooling plate structure of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the heat sink structure of this utility model.

[0020] Figure Labels

[0021] 1. Intermediate cooling plate structure; 101. Intermediate cooling plate body; 102. Vortex pipe groove; 103. Fixing mounting groove; 2. Top cooling plate; 3. Bottom cooling plate; 4. Heat dissipation plate structure; 401. Heat conduction strip; 402. Placement groove; 403. Conductive strip; 404. Threaded rod; 405. Adjusting nut; 406. Heat dissipation plate body; 407. Air guide groove; 408. Heat dissipation pipe. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0026] Reference Figure 1-3 The above describes a special cooling device for papermaking wastewater in a vortex flow channel, which includes an intermediate cooling plate structure 1, a top cooling plate 2 at the bottom of the intermediate cooling plate structure 1, a bottom cooling plate 3 at the top of the intermediate cooling plate structure 1, and a heat dissipation plate structure 4 between the intermediate cooling plate structure 1, the top cooling plate 2 and the bottom cooling plate 3.

[0027] An intermediate cooling plate structure 1 includes an intermediate cooling plate body 101. The top and bottom of the intermediate cooling plate body 101 are provided with vortex pipe grooves 102, and the top and bottom of the intermediate cooling plate body 101 are provided with fixing mounting grooves 103. The vortex pipe grooves 102 are bent. The top and bottom of the top cooling plate 2 and the bottom cooling plate 3 are also provided with vortex pipe grooves 102. The vortex pipe grooves 102 inside the top cooling plate 2 and the bottom cooling plate 3 are aligned with the vortex pipe grooves 102 inside the intermediate cooling plate body 101. The intermediate cooling plate structure 1, the top cooling plate 2, and the bottom cooling plate 3 are provided with threaded holes at their four corners. Bolts are installed inside the threaded holes. A sealing gasket is provided between the intermediate cooling plate structure 1, the top cooling plate 2, and the bottom cooling plate 3. Papermaking wastewater enters the interior of the vortex pipe channel 102 and flows through it. The intermediate cooling plate structure 1, the top cooling plate 2, the bottom cooling plate 3, and the heat dissipation plate structure 4 are all supported by materials with high thermal conductivity, so that the heat of the papermaking wastewater inside the vortex pipe channel 102 is transferred to the interior of the heat dissipation plate structure 4 for cooling.

[0028] During prolonged use of the intermediate cooling plate structure 1, top cooling plate 2, and bottom cooling plate 3, the papermaking wastewater flowing inside the vortex pipe channel 102 will accumulate inside the vortex pipe channel 102. Simply remove the bolts from the interior of the intermediate cooling plate structure 1, top cooling plate 2, and bottom cooling plate 3, separate the intermediate cooling plate structure 1, top cooling plate 2, and bottom cooling plate 3, and then open the vortex pipe channel 102 to clean the impurities inside.

[0029] Furthermore, in the above technical solution, the heat dissipation plate structure 4 includes a heat-conducting strip 401 and a conductive strip 403. The outer wall of the heat-conducting strip 401 is fitted with the inner wall of the fixed mounting groove 103. A placement groove 402 is opened inside one end of the heat-conducting strip 401. The heat-conducting strip 401 is supported by a heat-conducting material. A threaded rod 404 is provided at one end of the conductive strip 403. An adjusting nut 405 is threadedly connected to the outer wall of the threaded rod 404. The adjusting nut 405 is threadedly connected to the placement groove 402. The heat dissipation plate body 406 is inclined. During the flow of external gas, it will pass through the heat dissipation plate body 406, increasing the contact surface between the gas and the heat dissipation plate body 406 and carrying away heat. At the same time, the gas enters the interior of the air guide groove 407 for secondary heat dissipation, avoiding heat accumulation inside the heat dissipation plate body 406. The number of heat dissipation plate structures 4 is set to multiple. Multiple heat dissipation plate structures 4 are close to the vortex pipe grooves 102 at different positions to cool the papermaking wastewater from different stages and positions.

[0030] Furthermore, in the above technical solution, one end of the threaded rod 404 is provided with a heat sink body 406, the heat sink body 406 has an air guide groove 407 inside, and the heat sink body 406 has a heat dissipation pipe 408 inside.

[0031] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A special cooling device for papermaking wastewater via a vortex flow channel, characterized in that, include: An intermediate cooling plate structure (1) is provided with a top cooling plate (2) at the bottom of the intermediate cooling plate structure (1) and a bottom cooling plate (3) at the top of the intermediate cooling plate structure (1). A heat dissipation plate structure (4) is provided between the intermediate cooling plate structure (1), the top cooling plate (2) and the bottom cooling plate (3). The intermediate cooling plate structure (1) includes an intermediate cooling plate body (101), the top and bottom of the intermediate cooling plate body (101) are provided with vortex pipe grooves (102), the top and bottom of the intermediate cooling plate body (101) are provided with fixing installation grooves (103), and the vortex pipe grooves (102) are bent.

2. The papermaking wastewater S-vortex flow channel special cooling device according to claim 1, characterized in that: The top and bottom of the top cooling plate (2) and the bottom cooling plate (3) are provided with vortex pipe grooves (102), and the vortex pipe grooves (102) inside the top cooling plate (2) and the bottom cooling plate (3) are aligned with the vortex pipe grooves (102) inside the middle cooling plate body (101).

3. The papermaking wastewater S-vortex flow channel special cooling device according to claim 1, characterized in that: The four corners of the intermediate cooling plate structure (1), the top cooling plate (2) and the bottom cooling plate (3) are provided with threaded holes, and bolts are provided inside the threaded holes. A sealing gasket is provided between the intermediate cooling plate structure (1), the top cooling plate (2) and the bottom cooling plate (3).

4. The special cooling device for papermaking wastewater via a vortex flow channel according to claim 1, characterized in that: The heat sink structure (4) includes a heat-conducting strip (401) and a conductive strip (403). The outer wall of the heat-conducting strip (401) is attached to the inner wall of the fixed mounting groove (103). A placement groove (402) is provided inside one end of the heat-conducting strip (401). The heat-conducting strip (401) is supported by a heat-conducting material.

5. A special cooling device for papermaking wastewater via a vortex flow channel according to claim 4, characterized in that: One end of the conductive strip (403) is provided with a threaded rod (404), and the outer wall of the threaded rod (404) is threadedly connected with an adjusting nut (405), which is threadedly connected to the placement groove (402).

6. The papermaking wastewater S-vortex flow channel special cooling device according to claim 5, characterized in that: One end of the threaded rod (404) is provided with a heat sink body (406), the heat sink body (406) is provided with an air guide groove (407), and the heat sink body (406) is provided with a heat dissipation pipe (408).

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