CN-121994048-A - Tubular heat exchanger and application thereof in biopharmaceutical industry

CN121994048ACN 121994048 ACN121994048 ACN 121994048ACN-121994048-A

Abstract

The invention relates to the technical field of heat exchangers, in particular to a tubular heat exchanger and application thereof in biological pharmacy, which comprises an outer shell, a plurality of groups of heat exchange tubes and guide plates, pressure relief holes and an extension plate, wherein the outer shell is internally provided with the heat exchange tubes and the guide plates, the heat exchange tubes are perpendicular to the side parts of the guide plates, notches for fluid movement are formed between the guide plates and the inner wall of the outer shell, the pressure relief holes are arranged in a plurality of groups and are formed in the guide plates, the pressure relief holes can enable two sides of the guide plates to be communicated, the extension plate is in sliding connection with the guide plates, and when the extension plate moves towards the notches to enable the conducting area of the notches to be reduced, the pressure relief holes are communicated, long-time continuous dead areas at the rear sides of the guide plates are prevented, scaling conditions are prevented from being deteriorated, and heat exchange efficiency is affected.

Inventors

SHEN WENGUANG
WANG CHUNMIN
YE XIN
WANG BIN

Assignees

江苏飞宇医药科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260409

Claims (9)

1. A tubular heat exchanger comprises an outer shell, wherein a plurality of groups of heat exchange tubes and guide plates are arranged in the outer shell, the heat exchange tubes are perpendicular to the side parts of the guide plates, and a gap for fluid movement is formed between the guide plates and the inner wall of the outer shell; characterized by further comprising: the pressure relief holes are provided with a plurality of groups and are arranged on the guide plate, and the pressure relief holes can conduct the two sides of the guide plate; And the extension plate is in sliding connection with the guide plate, and when the extension plate moves towards the notch to reduce the conduction area of the notch, the pressure relief hole is conducted.
2. A tubular heat exchanger according to claim 1 wherein the extension plate is slidably mounted in a recess formed in the baffle, the recess being provided with a projection on a side wall thereof, the projection being slidable within a sliding connection formed on the extension plate; The extension plate penetrates through the outer shell and is in sealing sliding connection with the outer shell, an extension part is arranged on the extension plate, and the extension part is connected with a driving structure arranged on the outer shell.
3. A tubular heat exchanger according to claim 2 wherein the drive structure comprises an electromagnetic adsorption device fixedly mounted on the outer housing and a magnetic attraction portion mounted on the extension portion, the magnetic attraction portion being capable of attracting when the electromagnetic adsorption device is energized; The drive structure further includes an energy storage sleeve disposed on the outer housing and connected to the extension.
4. A tubular heat exchanger according to claim 3 wherein the energy storage kit comprises a retaining sleeve fixedly mounted on the outer housing and a telescopic shaft slidably mounted in the retaining sleeve, a cylindrical spring being provided in the retaining sleeve, one end of the cylindrical spring being connected to the inner wall of the retaining sleeve, the other end being connected to the telescopic shaft.
5. A tubular heat exchanger according to claim 1, wherein the extension plate is provided with a plurality of groups of through holes adapted to the pressure relief holes, and when the through holes coincide with the pressure relief holes, the pressure relief holes are in communication; And a plurality of groups of spiral channels which are spiral in the same direction are arranged in the pressure relief hole.
6. A tubular heat exchanger according to claim 1, further comprising: The cylindrical shell is communicated with the outer shell, a filtering component is arranged in the cylindrical shell, and an annular cavity is formed by the filtering component and the cylindrical shell; The plugging plate is fixedly connected with the cylindrical shell and is in sealing sliding fit with the inside of the filtering component; the spraying structure is arranged on the cylindrical shell and can act on the area of the filtering part covered by the plugging plate.
7. A tubular heat exchanger according to claim 6 wherein the filter member comprises a drive means fixedly mounted to the cylindrical housing, an output shaft of the drive means extending through the cylindrical housing and being connected to a filter mesh, a lower end of the filter mesh being in sealing sliding connection with a lower end of the cylindrical housing; The inner wall of filtering the mesh screen with shutoff board sealing sliding connection, just be circumference equidistance on the filtering the mesh screen and be provided with multiunit filtration pore.
8. The tubular heat exchanger of claim 6, wherein the cylindrical shell is provided with a liquid inlet and a drain outlet, and the inner wall of the liquid inlet is tangential to the inner wall of the cylindrical shell; The jetting structure comprises a plurality of groups of high-pressure nozzles fixedly mounted on the cylindrical shell, the high-pressure nozzles are obliquely downwards arranged, and fluid jetted from the high-pressure nozzles can tangentially act on the side parts of the filtering mesh screen.
9. Use of a tubular heat exchanger according to any one of claims 1 to 8 in biopharmaceuticals.

Description

Tubular heat exchanger and application thereof in biopharmaceutical industry Technical Field The invention relates to the technical field of heat exchangers, in particular to a tubular heat exchanger and application thereof in biopharmaceuticals. Background In the biopharmaceutical production process, the tubular heat exchanger is widely used in key process links such as water cooling for injection, culture medium heating, fermentation tank temperature control, accurate temperature control of high-activity feed liquid and the like. These applications place very stringent demands on the cleanliness, cleanability and operational stability of the heat exchanger. In a tubular heat exchanger, the baffle is one of the key components for achieving efficient heat exchange of the shell side fluid. Through the reasonable arrangement of the guide plates, the residence time of the fluid in the heat exchanger can be prolonged, and the heat exchange between the fluid and the heat exchange tube is enhanced. However, the provision of baffles also presents the inherent disadvantage that on the back flow side of the baffle, a region of low velocity swirl, the so-called "dead zone", is created due to flow separation phenomena. The fluid in the dead zone is not completely stationary, but has a very low flow rate, mainly in a slow swirling motion. Under the continuous heating working condition, impurities in the fluid in the area are easy to deposit and gradually form a scale layer on the surface of the heat exchange tube, so that the local heat transfer resistance is increased, the heat exchange efficiency is reduced, even under-scale corrosion is caused in severe cases, and the safe operation and the service life of equipment are affected. To eliminate or reduce the adverse effects of dead zones, various improvements have been proposed in the prior art. Among them, it is a common practice to replace the conventional arcuate baffle with an arcuate baffle. The arcuate baffle directs fluid more smoothly around the edge of the baffle by changing the shape of the flow channel, thereby compressing the extent of the dead zone to some extent. However, this type of construction still has difficulty in completely eliminating dead space, particularly in the area of the arcuate baffle adjacent the inner wall of the housing, where structural limitations still result in a low velocity flow area of a certain width, which is only reduced and not eradicated. Disclosure of Invention The invention aims to provide a tubular heat exchanger and application thereof in biopharmaceuticals, so as to solve the problems in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: A tubular heat exchanger comprises an outer shell, wherein a plurality of groups of heat exchange tubes and guide plates are arranged in the outer shell, the heat exchange tubes are perpendicular to the side parts of the guide plates, and a gap for fluid movement is formed between the guide plates and the inner wall of the outer shell; the pressure relief holes are provided with a plurality of groups and are arranged on the guide plate, and the pressure relief holes can conduct the two sides of the guide plate; And the extension plate is in sliding connection with the guide plate, and when the extension plate moves towards the notch to reduce the conduction area of the notch, the pressure relief hole is conducted. The tube heat exchanger comprises an extension plate, a guide plate and a heat exchange tube, wherein the extension plate is slidably arranged in a concave part formed on the guide plate, a protrusion is arranged on the side wall of the concave part, and the protrusion can slide in a sliding connection part formed on the extension plate; The extension plate penetrates through the outer shell and is in sealing sliding connection with the outer shell, an extension part is arranged on the extension plate, and the extension part is connected with a driving structure arranged on the outer shell. The driving structure comprises an electromagnetic adsorption device fixedly mounted on the outer shell and a magnetic attraction part mounted on the extension part, and the magnetic attraction part can be attracted when the electromagnetic adsorption device is electrified; The drive structure further includes an energy storage sleeve disposed on the outer housing and connected to the extension. The energy storage sleeve comprises a stagnation-holding sleeve fixedly arranged on the outer shell and a telescopic shaft slidably arranged in the stagnation-holding sleeve, a cylindrical spring is arranged in the stagnation-holding sleeve, one end of the cylindrical spring is connected with the inner wall of the stagnation-holding sleeve, and the other end of the cylindrical spring is connected with the telescopic shaft. In the tubular heat exchanger, the extension plate is provided with a plurality of groups of through ho