Shell and tube heat exchanger
By introducing filter cartridges and activated carbon filter components into the shell and tube heat exchanger, the problems of impurity accumulation and harmful gas treatment in the shell are solved, more efficient heat exchange performance and safe gas emissions are achieved, and the equipment life is extended.
Patent Information
- Application Number
- CN202422785457.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-15
AI Technical Summary
After long-term use, liquid impurities accumulate in the shell of existing shell and tube heat exchangers, resulting in a decrease in heat exchange capacity, shortening the service life, and the harmful gases produced cannot be effectively filtered.
A shell and tube heat exchanger with a filter cartridge and activated carbon filter assembly was designed. The filter cartridge filters impurities, and the activated carbon absorbs harmful gases. The detachable trapezoidal latch and spring structure facilitate cleaning, and a valve is set to detect the safe discharge of gas.
It effectively prevents impurities from accumulating inside the shell, improves heat exchange capacity, ensures safe gas discharge, extends equipment life and protects the environment.
Smart Images
Figure CN223332211U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a shell and tube heat exchanger. Background Art
[0002] A shell and tube heat exchanger is a heat transfer device consisting of a shell, tube sheet, tube bundle, baffle and box. Its most basic structure is to add many small tubes for heat exchange in a circular shell. When the heated heat medium is steam, it is called a shell and tube steam-water heat exchanger; when the heated heat medium is high-temperature water, it is called a shell and tube water-water heat exchanger.
[0003] A shell and tube heat exchanger in the prior art requires that the liquid to be exchanged enter directly from the water inlet pipe. After long-term use, some impurities will inevitably accumulate inside the shell, thereby reducing the overall heat exchange capacity and affecting the overall service life.
[0004] Therefore, a shell and tube heat exchanger is proposed to solve the above problems. Summary of the Invention
[0005] In order to make up for the above shortcomings, the utility model provides a shell and tube heat exchanger, which aims to improve the problem of impurities accumulating in the shell after long-term use and exchanging heat for some liquids that may produce harmful gases without being able to filter the harmful gases.
[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a shell and tube heat exchanger, including a shell, a liquid outlet pipe fixedly connected to the top of the shell, a water inlet pipe fixedly connected to the outside of the water inlet pipe is fixedly connected to the shell, a sliding plate is slidably connected to the inside of the shell, a pull rod is fixedly connected to one side of the sliding plate, a spring is sleeved on the outside of the pull rod, a trapezoidal pin is fixedly connected to the other side of the sliding plate, a filter cartridge is slidably connected to the inside of the water inlet pipe, two plug blocks are fixedly connected to the bottom of both sides of the filter cartridge, a square hole is opened on the outside of the plug block, two fixed plates are fixedly connected to the inside of the shell, a plurality of heat exchange tubes are fixedly connected to the inside of the fixed plate, the water outlet pipe is fixedly connected to the bottom of the shell, the liquid inlet pipe is fixedly connected to the bottom of the shell, and a filter assembly for treating exhaust gas is provided on the top of the shell.
[0007] As a further description of the above technical solution:
[0008] The filter assembly includes an exhaust pipe, which is fixedly connected to the top of the shell. Activated carbon is arranged inside the exhaust pipe, and an exhaust pipe is fixedly connected to the outside of the exhaust pipe.
[0009] As a further description of the above technical solution:
[0010] One end of the spring is fixedly connected to one side of the sliding plate, and the other end of the spring is fixedly connected to the inner wall of the shell.
[0011] As a further description of the above technical solution:
[0012] The trapezoidal latch is slidably connected to the inside of the water inlet pipe, and the trapezoidal latch is inserted into the inside of the square hole.
[0013] As a further description of the above technical solution:
[0014] The insert block is slidably connected to the inside of the water inlet pipe, and a disc is fixedly connected to the outside of the pull rod.
[0015] As a further description of the above technical solution:
[0016] A bracket is fixedly connected to the bottom of the shell, and a plurality of baffles are fixedly connected inside the shell.
[0017] As a further description of the above technical solution:
[0018] The outside of the air outlet pipe is fixedly connected with a valve.
[0019] As a further description of the above technical solution:
[0020] The pull rod is slidably connected to the interior of the shell, and the trapezoidal latch is slidably connected to the interior of the shell.
[0021] The utility model has the following beneficial effects:
[0022] 1. In the present invention, the filter cartridge is inserted into the water inlet pipe. When the plugs on both sides of the filter cartridge are inserted into the water inlet pipe wall and abut against the trapezoidal pins, the trapezoidal pins will slide in the housing due to the contact of the rounded inclined surfaces until the filter cartridge is fully inserted. Then, the trapezoidal pins will be inserted into the square holes on the plugs under the action of the spring. When replacement is required, only the pull rod needs to be pulled to remove the trapezoidal pins from the square holes, which effectively avoids the accumulation of impurities in the water inside the housing due to long-term use, thereby reducing the overall heat exchange capacity and affecting the overall service life.
[0023] 2. In the present invention, when exchanging heat with liquids that may generate harmful gases, water vapor and part of the gas will be in the exhaust pipe. The activated carbon installed in the exhaust pipe will adsorb the gas to obtain clean gas. If it is unclear whether the gas is clean, open the valve and collect a small amount of gas through the outlet for testing before considering whether to release it. This ensures the safe discharge of the gas and prevents damage to the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a three-dimensional schematic diagram of a shell and tube heat exchanger proposed by the utility model;
[0025] Figure 2This is a schematic diagram of the explosion structure of a shell and tube heat exchanger proposed in the present invention;
[0026] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;
[0027] Figure 4 for Figure 3 The enlarged schematic diagram of point C in the middle;
[0028] Figure 5 for Figure 3 The enlarged schematic diagram of point D in the middle;
[0029] Figure 6 This is a schematic structural diagram of the exhaust pipe cross section of a shell and tube heat exchanger proposed in the present invention;
[0030] Figure 7 for Figure 6 A magnified schematic diagram of point B in the middle;
[0031] Figure 8 This is a schematic structural diagram of a cross section of a shell and tube heat exchanger proposed by the present invention.
[0032] Legend:
[0033] 1. Shell; 2. Liquid outlet pipe; 3. Water inlet pipe; 4. Bracket; 5. Liquid inlet pipe; 6. Water outlet pipe; 7. Exhaust pipe; 8. Valve; 9. Exhaust pipe; 10. Activated carbon; 11. Filter cartridge; 12. Trapezoidal latch; 13. Spring; 14. Pull rod; 15. Shell; 16. Sliding plate; 17. Insert block; 18. Square hole; 19. Baffle; 20. Fixed plate; 21. Heat exchange tube. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0035] Reference Figure 1 - Figure 8, The utility model provides an embodiment: a shell and tube heat exchanger, including a shell 1, a liquid outlet pipe 2 is fixedly connected to the top of the shell 1, a water inlet pipe 3 is fixedly connected to the top of the shell 1, the outer side of the water inlet pipe 3 is fixedly connected to the shell 15, a sliding plate 16 is slidably connected to the inside of the shell 15, one side of the sliding plate 16 is fixedly connected to the pull rod 14, a spring 13 is sleeved on the outside of the pull rod 14, and a trapezoidal latch 12 is fixedly connected to the other side of the sliding plate 16, a filter cartridge 11 is slidably connected to the inside of the water inlet pipe 3, two plug blocks 17 are fixedly connected to the bottom of both sides of the filter cartridge 11, and a square hole 18 is opened on the outside of the plug block 17, two fixed plates 20 are fixedly connected to the inside of the shell 1, and a plurality of heat exchange tubes 21 are fixedly connected to the inside of the fixed plate 20, the water outlet pipe 6 is fixedly connected to the bottom of the shell 1, and the liquid inlet pipe 5 is fixedly connected to the bottom of the shell 1. A filter assembly for treating exhaust gas is provided on the top of the shell 1. The shell 1 is the main structure of the heat exchanger and provides a container for accommodating the internal fluid and heat exchange elements. The water inlet pipe 3 is used to introduce fluid and heat exchange agent to exchange heat in the heat exchange tube 21. The outer shell 15 is used to carry the various components inside it to ensure normal operation. The sliding plate 16 is used to connect the trapezoidal pin 12 and the pull rod 14. The trapezoidal pin 12 is used to fix the filter cartridge 11 and the water inlet pipe 3. The spring 13 is used to make the trapezoidal pin 12 tightly inserted in the square hole 18 in the absence of external force. The heat exchange tube 21 serves as the core heat exchange element. The heat transfer is achieved through the contact between the internal and external fluids. The liquid outlet pipe 2 is used for the outflow of the heat exchange agent, the liquid inlet pipe 5 is used for the entry of the heat exchange agent, and the water outlet pipe 6 is used for the outflow of the liquid after the heat exchange is completed.
[0036] Reference Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 The filter assembly includes an exhaust pipe 7, which is fixedly connected to the top of the shell 1. Activated carbon 10 is arranged inside the exhaust pipe 7. An outlet pipe 9 is fixedly connected to the outside of the exhaust pipe 7. The exhaust pipe 7 is used to carry the gas generated by heat exchange, and the activated carbon 10 is used to adsorb harmful substances to purify the gas. The outlet pipe 9 is used to discharge the purified gas.
[0037] Reference Figure 3 and Figure 4 One end of the spring 13 is fixedly connected to one side of the sliding plate 16, and the other end of the spring 13 is fixedly connected to the inner wall of the shell 15. The spring 13 is used to tightly insert the trapezoidal pin 12 into the square hole 18 without the action of external force. The shell 15 is used to carry the various components inside it to ensure normal operation. The sliding plate 16 is used to connect the trapezoidal pin 12 and the pull rod 14.
[0038] Reference Figure 1 - Figure 5The trapezoidal pin 12 is slidably connected to the inside of the water inlet pipe 3, and the trapezoidal pin 12 is inserted into the square hole 18. The trapezoidal pin 12 is used to fix the filter cartridge 11 and the water inlet pipe 3. The water inlet pipe 3 is used for the entry of the required heat exchange liquid, and the square hole 18 is used for the insertion of the trapezoidal pin 12, thereby achieving fixation.
[0039] Reference Figure 1 - Figure 5 The plug block 17 is slidably connected to the inside of the water inlet pipe 3, and a disc is fixedly connected to the outside of the pull rod 14. The plug block 17 is used to insert into the water inlet pipe 3, and then the trapezoidal pin 12 is inserted into the plug block 17 to achieve the fixation between the filter cartridge 11 and the water inlet pipe 3. The pull rod 14 is used to pull the trapezoidal pin 12, and the water inlet pipe 3 is used to enter the required heat exchange liquid.
[0040] Reference Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 A bracket 4 is fixedly connected to the bottom of the shell 1, and a plurality of baffles 19 are fixedly connected inside the shell 1. The shell 1 is the main structure of the heat exchanger, which provides a container for accommodating the internal fluid and heat exchange elements. The bracket 4 is used to stabilize the entire device, and the baffles 19 are used to slow down the flow of the heat exchange agent to ensure sufficient heat exchange.
[0041] Reference Figure 7 A valve 8 is fixedly connected to the outside of the outlet pipe 9. The outlet pipe 9 is used to discharge clean gas, and the valve 8 is used to control the closing and closing of the outlet pipe 9.
[0042] Reference Figure 4 The pull rod 14 is slidably connected to the inside of the shell 15 , the trapezoidal latch 12 is slidably connected to the inside of the shell 15 , and the pull rod 14 is used to pull the trapezoidal latch 12 .
[0043] Working principle: First insert the filter cartridge 11 into the water inlet pipe 3. When the plug blocks 17 on both sides of the filter cartridge 11 are inserted into the wall of the water inlet pipe 3 and abut against the trapezoidal pin 12, the trapezoidal pin 12 will slide into the shell 15 due to the contact of the rounded inclined surfaces. Then the spring 13 will be compressed until the filter cartridge 11 is fully inserted. Then the trapezoidal pin 12 will be inserted into the square hole 18 on the plug block 17 under the action of the spring 13. When replacement is needed, just pull the disc, and the disc will drive the pull rod 14 to pull the trapezoidal pin 12 out of the square hole 18, effectively avoiding the accumulation of impurities in the water inside the shell 1 due to long-term use, thereby reducing the overall heat exchange capacity and affecting the overall service life. The liquid that needs to be heat exchanged enters from the water inlet pipe 3 and then enters the heat exchange pipe 21. The heat exchanger enters from the liquid inlet pipe 5, then passes through the inside of the shell 1, and passes through the baffle 19 in sequence, and finally flows out from the liquid outlet pipe 2. The liquid that has completed the heat exchange will flow out from the water outlet pipe 6. When exchanging some liquids that may produce harmful gases, water vapor and part of the gas will be in the exhaust pipe 7. The activated carbon 10 installed in the exhaust pipe 7 will adsorb the gas to obtain clean gas. If it is not clear whether the gas is clean, open the valve 8 and collect a small amount of gas through the outlet pipe 9 for testing, and then consider whether to release it, thereby ensuring the safe discharge of the gas and preventing damage to the environment.
[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A shell and tube heat exchanger, comprising a shell (1), characterized in that: The top of the shell (1) is fixedly connected to a liquid outlet pipe (2), the top of the shell (1) is fixedly connected to a water inlet pipe (3), the outer side of the water inlet pipe (3) is fixedly connected to a shell (15), the inner side of the shell (15) is slidably connected to a sliding plate (16), one side of the sliding plate (16) is fixedly connected to a pull rod (14), the outer side of the pull rod (14) is sleeved with a spring (13), the other side of the sliding plate (16) is fixedly connected to a trapezoidal pin (12), the inner side of the water inlet pipe (3) is slidably connected to a filter cartridge (11), the bottom of both sides of the filter cartridge (11) is fixedly connected to two plug blocks (17), the outer side of the plug blocks (17) is provided with a square hole (18), the inner side of the shell (1) is fixedly connected to two fixed plates (20), the inner side of the fixed plate (20) is fixedly connected to a plurality of heat exchange tubes (21), the bottom of the shell (1) is fixedly connected to a water outlet pipe (6), the bottom of the shell (1) is fixedly connected to a liquid inlet pipe (5), and the top of the shell (1) is provided with a filter assembly for treating exhaust gas.
2. The shell and tube heat exchanger according to claim 1, characterized in that: The filter assembly comprises an exhaust pipe (7), the exhaust pipe (7) being fixedly connected to the top of the housing (1), activated carbon (10) being provided inside the exhaust pipe (7), and an exhaust pipe (9) being fixedly connected to the outside of the exhaust pipe (7).
3. The shell and tube heat exchanger according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to one side of the sliding plate (16), and the other end of the spring (13) is fixedly connected to the inner wall of the housing (15).
4. The shell and tube heat exchanger according to claim 1, characterized in that: The trapezoidal latch (12) is slidably connected to the inside of the water inlet pipe (3), and the trapezoidal latch (12) is inserted into the inside of the square hole (18).
5. The shell and tube heat exchanger according to claim 1, characterized in that: The insert block (17) is slidably connected to the inside of the water inlet pipe (3), and a disc is fixedly connected to the outside of the pull rod (14).
6. The shell and tube heat exchanger according to claim 1, characterized in that: A bracket (4) is fixedly connected to the bottom of the shell (1), and a plurality of baffles (19) are fixedly connected inside the shell (1).
7. The shell and tube heat exchanger according to claim 2, characterized in that: The outside of the air outlet pipe (9) is fixedly connected to a valve (8).
8. The shell and tube heat exchanger according to claim 1, characterized in that: The pull rod (14) is slidably connected to the interior of the housing (15), and the trapezoidal latch (12) is slidably connected to the interior of the housing (15).