Gas-liquid heat exchange cooler applied to pharmaceutical equipment system

Abstract

The utility model relates to the technical field of heat exchange equipment, in particular to a gas-liquid heat exchange cooler applied to a pharmaceutical equipment system. Comprising a heat exchange tube with tube pass tube plates arranged at the two ends; the heat exchange barrel is arranged on the periphery of the heat exchange tube, shell pass tube plates are arranged at the two ends of the heat exchange barrel, and the tube pass tube plates are fixedly connected with the shell pass tube plates; the heat preservation barrel is arranged on the periphery of the heat exchange barrel, and the two ends of the heat preservation barrel penetrate through the tube pass tube plate to be arranged on the shell pass tube plate; the tube box is arranged on the adjacent side of the shell pass tube plate; the influence of the external environment temperature on the temperature of fluid in the cooler is blocked through the heat preservation barrel. The gas-liquid heat exchange cooler applied to the pharmaceutical equipment system has the advantages of being good in cooling effect, high in heat exchange efficiency, high in external environment temperature interference resistance, good in anti-seismic performance, convenient in shell pass leak detection, easy to operate, convenient to use and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a gas-liquid heat exchange cooler applied to a pharmaceutical equipment system. Background Art

[0002] In the field of pharmaceutical equipment systems, coolers are widely used in bioreactors and other systems. Coolers play different roles in multiple links of the pharmaceutical process route to ensure that the target product is obtained. The cooler is a very critical component in pharmaceutical equipment. The gas-liquid heat exchange coolers currently on the market are often arranged horizontally in the flow direction of the tube bundle, and most of the two ends are head structures, and the shell side cannot be leak-checked. The inside of the heat exchanger is easily disturbed by the external environment, the heat exchange efficiency is not high, the shock resistance is not strong, and the installation and maintenance are inconvenient.

[0003] Chinese patent CN204478872U discloses a gas-liquid heat exchanger, comprising a shell, wherein a partition plate is arranged in the middle of the shell to divide the shell into a first shell side and a second shell side, wherein a tube bundle formed by tubes is arranged in the first shell side and the second shell side, and spirally arranged fins are arranged on the surface of the tubes; the gas-liquid heat exchanger of the utility model adopts a double-tube-pass and double-shell-pass structure design, and adopts tubes with spirally arranged fin structures on the surface, which overcomes the problem of low heat exchange efficiency due to the large difference in heat exchange coefficients between gas and hot fluid water, and in addition, through the bypass baffle design, the space between the tube bundle and the shell, and between the tube bundle and the partition plate is blocked to ensure that the gas flow passes through the space in the tube bundle, further improving the heat transfer efficiency.

[0004] However, this technical solution cannot block the influence of the external ambient temperature on the temperature of the fluid inside the heat exchanger, resulting in poor cooling effect, low heat exchange efficiency, difficulty in cleaning the U-tube, large spacing between tube bundles, and easy short circuit in the shell. When the flow rate in the tube is too fast, the curved section will be continuously impacted, resulting in a short service life. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the prior art and to provide a gas-liquid heat exchange cooler for use in pharmaceutical equipment systems. The utility model realizes the function of protecting the inside of the heat exchange tubes by cooperating with a heat-insulating cylinder and a straight heat exchange tube, thereby solving the problem in the prior art that the external temperature affects the heat exchange effect.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A gas-liquid heat exchange cooler used in a pharmaceutical equipment system, comprising:

[0008] The heat exchange tubes are provided with tube sheets at both ends;

[0009] A heat exchange cylinder is arranged on the outer periphery of the heat exchange tube, and shell-side tube sheets are arranged at both ends of the heat exchange cylinder, and the tube-side tube sheets are fixedly connected to the shell-side tube sheets;

[0010] A heat-insulating cylinder is arranged on the outer periphery of the heat-exchanging cylinder, and both ends of the heat-insulating cylinder pass through the tube-side tube sheet and are arranged on the shell-side tube sheet; and

[0011] A tube box is arranged on the adjacent side of the shell-side tube sheet;

[0012] The heat-insulating cylinder is used to prevent the influence of the external environment temperature on the temperature of the fluid inside the cooler.

[0013] Preferably, the heat exchange tube and the heat exchange cylinder are both arranged obliquely, and the tube box near the bottom end of the heat exchange cylinder is provided with an air inlet in the same inclination direction as the heat exchange tube, and the tube box near the top end of the heat exchange cylinder is provided with an air outlet in the same inclination direction as the heat exchange tube.

[0014] Preferably, a cold fluid inlet is provided above the heat exchange cylinder, a cold fluid outlet is provided below the heat exchange cylinder, the cold fluid inlet is provided on the same side as the air outlet, and the cold fluid outlet is provided on the same side as the air inlet.

[0015] Preferably, a leak detection port is provided between the tube-side tube sheet and the shell-side tube sheet.

[0016] Preferably, the position of the air inlet is lower than the center line of the heat exchange cylinder, and the position of the air outlet is higher than the center line of the heat exchange cylinder.

[0017] Preferably, a plurality of baffles are equidistantly and staggeredly distributed between the heat exchange tube and the heat exchange cylinder.

[0018] Preferably, the baffle is semicircular, and the outer diameter of the baffle is equal to the outer diameter of the heat exchange tube.

[0019] Preferably, the baffle is perpendicular to the flow direction of the gas in the heat exchange tube.

[0020] Preferably, a plurality of legs are vertically arranged on the heat-insulating cylinder.

[0021] Preferably, a bottom plate is provided at the bottom end of the supporting leg.

[0022] The beneficial effects of the utility model are:

[0023] (1) The utility model makes the flow direction of the heat exchange tube and the heat exchange cylinder adopt a 20° inclination angle, and the air inlet is lower than the center line of the heat exchange cylinder, and the air outlet is higher than the center line of the heat exchange cylinder, so as to adapt to the natural rise of gas from low to high, which is conducive to smoother gas flow. In addition, combined with the top-down flow of the cold fluid in the heat exchange cylinder, it conforms to the characteristic of the liquid flowing from high to low, reduces the flow resistance, and thus accelerates the heat exchange efficiency.

[0024] (2) The utility model distributes baffles at equal intervals on the outside of the heat exchange tube, and the baffle spacing adopts the most reasonable spacing. When the cold fluid flows through the baffle from top to bottom, an "S"-shaped countercurrent route is formed, allowing the cold fluid to fully contact the outer surface of the heat exchange tube, increasing the contact area and also increasing the residence time of the cold fluid in the heat exchange cylinder, thereby greatly improving the heat exchange efficiency.

[0025] (3) The utility model reduces the external volume of the heat exchanger by installing tube boxes at both ends of the heat exchange cylinder, and the tube boxes use round processed plates instead of conventional heads. Countersunk bolts are used to connect the left box and the tube plate of the tube side, so that the two can be disassembled and used conveniently. The overall structure is more stable and firm, and has good seismic resistance.

[0026] (4) The utility model provides a leak detection port between the tube side tube sheet and the shell side tube sheet, thereby realizing leak detection of the heat exchange cylinder. By observing whether leakage occurs, it can be judged whether the heat exchanger can be used normally. The whole process is simple to operate and easy to use.

[0027] (5) The utility model increases the force-bearing area of ​​the legs by installing a bottom plate at the bottom end of the legs of the insulation cylinder, and opens four small circular holes on the bottom plate, and then fixes the heat exchanger with bolts, which makes installation and disassembly very convenient and makes the heat exchanger more stable and firm.

[0028] In summary, the utility model has the advantages of good cooling effect, high heat exchange efficiency, strong resistance to external environmental temperature interference, good shock resistance, convenient shell leak detection, simple operation and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 for Figure 1 A magnified image of point A;

[0031] Figure 3 It is an exploded view of the components of the utility model;

[0032] Figure 4 It is a side sectional view of the utility model;

[0033] Figure 5 for Figure 4 The enlarged view of point B;

[0034] Figure 6 It is a cross-sectional view of the heat exchange tube of the utility model.

[0035] Figure numerals: 1-heat exchange tube; 11-tube side tube sheet; 111-leak detection port; 12-baffle; 2-heat exchange cylinder; 21-shell side tube sheet; 22-cold fluid inlet; 23-cold fluid outlet; 3-insulation cylinder; 31-support leg; 32-bottom plate; 4-tube box; 41-air inlet; 42-air outlet. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0038] Example

[0039] like Figure 1-6As shown, this embodiment provides a gas-liquid heat exchange cooler applied to a pharmaceutical equipment system, comprising: a heat exchange tube 1, a heat exchange cylinder 2 arranged on the periphery of the heat exchange tube 1, a heat preservation cylinder 3 arranged on the periphery of the heat exchange cylinder 2, and a tube box 4 arranged on the adjacent side of the shell-side tube sheet 21, both ends of the heat exchange tube 1 are provided with a tube-side tube sheet 11, both ends of the heat exchange cylinder 2 are provided with a shell-side tube sheet 21, the tube-side tube sheet 11 is fixedly connected to the shell-side tube sheet 21, and both ends of the heat preservation cylinder 3 pass through the tube-side tube sheet 11 and are arranged on the shell-side tube sheet 21, the heat-insulating cylinder 3 is used to block the influence of the external ambient temperature on the internal fluid temperature of the heat exchanger, and has strong resistance to external ambient temperature interference, thereby improving the heat exchange effect. The pipe box 4 preferably adopts a circular processed plate to replace the conventional head, which reduces the external volume of the heat exchanger, and the pipe box 4 and the tube sheet 11 are preferably connected by countersunk bolts, so that the two are detachably fixed and easy to disassemble and assemble, making the overall structure more solid and seismic resistant. The straight heat exchange tube 1 has a long service life and will not be damaged regardless of whether the flow rate is too fast.

[0040] Among them, the heat exchange tube 1 and the heat exchange cylinder 2 are both arranged at an angle, and the tube box 4 near the bottom end of the heat exchange cylinder 2 is provided with an air inlet 41 with the same inclination direction as the heat exchange tube 1, and the tube box 4 near the top end of the heat exchange cylinder 2 is provided with an air outlet 42 with the same inclination direction as the heat exchange tube 1. The position of the air inlet 41 is lower than the center line of the heat exchange cylinder 2, and the position of the air outlet 42 is higher than the center line of the heat exchange cylinder 2. The flow direction of the heat exchange tube 1 and the heat exchange cylinder 2 preferably adopts an inclination angle of 20° to adapt to the natural rising characteristics of the gas from low to high, which is conducive to smoother gas flow, thereby improving the heat exchange efficiency, and can be quickly positioned and easy to use.

[0041] At the same time, a cold fluid inlet 22 is provided above the heat exchange cylinder 2, and a cold fluid outlet 23 is provided below the heat exchange cylinder 2, that is, the cold fluid in the heat exchange cylinder 2 flows from top to bottom, which conforms to the characteristics of liquid flowing from high to low, reduces flow resistance, and further improves heat exchange efficiency. It is further preferred that the cold fluid inlet 22 and the air outlet 42 are provided on the same side, and the cold fluid outlet 23 and the air inlet 41 are provided on the same side, so as to facilitate the addition of cold fluid and gas.

[0042] In this embodiment, the cold fluid inlet 22, the cold fluid outlet 23, the air inlet 41, and the air outlet 42 all use sanitary clamp joints because they are corrosion-resistant, can be used for a long time, can prevent fluid leakage, and have a simple internal structure and are very easy to clean.

[0043] In this embodiment, a leak detection port 111 is provided between the tube-side tube sheet 11 and the shell-side tube sheet 21, so as to detect leaks of the heat exchange cylinder 2 and observe whether it leaks, thereby judging whether the heat exchanger can be used normally. That is, the leak detection operation is simple and easy to use.

[0044] In this embodiment, a plurality of baffles 12 are equidistantly distributed between the heat exchange tube 1 and the heat exchange cylinder 2. The baffles 12 are perpendicular to the flow direction of the gas in the heat exchange tube 1. The baffles 12 are spaced at the most reasonable intervals. When the cold fluid flows through the baffles 12 from top to bottom, an "S"-shaped countercurrent route is formed, allowing the cold fluid to fully contact the outer surface of the heat exchange tube 1, increasing the contact area, and also increasing the residence time of the cold fluid in the heat exchange cylinder 2, thereby greatly improving the heat exchange efficiency.

[0045] Of course, the baffle 12 is semicircular, and the outer diameter of the baffle 12 is equal to the outer diameter of the heat exchange tube 1, that is, the outer diameter of the baffle 12 is equal to the inner diameter of the heat exchange cylinder 2, to ensure that the baffle 12 can be smoothly installed in the heat exchange cylinder 2. The semicircular shape can provide a good path for the fluid, thereby accelerating the flow rate of the cold fluid.

[0046] In addition, a plurality of legs 31 are vertically arranged on the insulation cylinder 3, and the legs 31 are used to support the entire heat exchanger. A bottom plate 32 is arranged at the bottom end of the legs 31, and the bottom plate 32 increases the force-bearing area of ​​the legs. Preferably, four small circular holes are opened on the bottom plate 32, and the heat exchanger is fixed by bolts, which makes installation and disassembly very convenient, making the heat exchanger more stable and firm, and preventing shaking and the like.

[0047] The working principle of this embodiment is: first, the gas is introduced into the heat exchange tube 1 through the air inlet 41, and at the same time, the cold fluid is introduced into the heat exchange cylinder 2 through the cold fluid inlet 22. At this time, the cold fluid will flow down in an "S" shape along the multiple baffles 12 to the cold fluid outlet 23, and at the same time, the cooled gas will be discharged outward from the air outlet 42.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas-liquid heat exchange cooler used in a pharmaceutical equipment system, characterized in that: include: The heat exchange tubes are provided with tube sheets at both ends; A heat exchange cylinder is arranged on the outer periphery of the heat exchange tube, and shell-side tube sheets are arranged at both ends of the heat exchange cylinder, and the tube-side tube sheets are fixedly connected to the shell-side tube sheets; A heat-insulating cylinder is arranged on the outer periphery of the heat-exchanging cylinder, and both ends of the heat-insulating cylinder pass through the tube-side tube sheet and are arranged on the shell-side tube sheet; and A tube box is arranged on the adjacent side of the shell-side tube sheet; The heat-insulating cylinder is used to prevent the influence of the external environment temperature on the temperature of the fluid inside the cooler.

2. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 1, characterized in that: The heat exchange tube and the heat exchange cylinder are both arranged obliquely, and the tube box near the bottom end of the heat exchange cylinder is provided with an air inlet in the same inclination direction as the heat exchange tube, and the tube box near the top end of the heat exchange cylinder is provided with an air outlet in the same inclination direction as the heat exchange tube.

3. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 2, characterized in that: A cold fluid inlet is arranged above the heat exchange cylinder, and a cold fluid outlet is arranged below the heat exchange cylinder.

4. The gas-liquid heat exchange cooler used in a pharmaceutical equipment system according to claim 1, characterized in that: A leak detection port is arranged between the tube side tube sheet and the shell side tube sheet.

5. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 2, characterized in that: The position of the air inlet is lower than the center line of the heat exchange cylinder, and the position of the air outlet is higher than the center line of the heat exchange cylinder.

6. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 1, characterized in that: A plurality of baffles are staggered and distributed equidistantly between the heat exchange tube and the heat exchange cylinder.

7. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 6, characterized in that: The baffle is semicircular in shape, and the outer diameter of the baffle is equal to the outer diameter of the heat exchange tube.

8. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 7, characterized in that: The baffle is perpendicular to the flow direction of the gas in the heat exchange tube.

9. The gas-liquid heat exchange cooler used in a pharmaceutical equipment system according to claim 1, characterized in that: A plurality of supporting legs are vertically arranged on the heat-insulating cylinder.

10. The gas-liquid heat exchange cooler used in pharmaceutical equipment system according to claim 9, characterized in that: The bottom end of the supporting leg is provided with a bottom plate.

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