Tube bank type heat exchange device

Abstract

The utility model discloses a calandria type heat exchange device which comprises a cooler cylinder, tube plates are arranged at the two ends of the interior of the cooler cylinder, an upper heat exchange tube core assembly and a lower heat exchange tube core assembly are arranged between the two tube plates, and a heat exchange cavity is formed in the portion, between the two tube plates, in the cooler cylinder. Wherein a cold fluid rotation cavity is formed between one tube plate and the inner end face of the cold cleaner cylinder, a cold fluid inlet and outlet cavity is formed between the other tube plate and the inner end face of the cold cleaner cylinder, and a partition plate used for dividing the cold fluid inlet and outlet cavity into a cold fluid outlet cavity and a cold fluid inlet cavity is arranged in the cold fluid inlet and outlet cavity. The first opening and closing control structure is used for conducting closed opening and closing control on the end portions of the heat exchange pipe core assemblies located in the lower group, the second opening and closing control structure is used for conducting closed opening and closing control on the end portions of the heat exchange pipe core assemblies located in the upper group, and therefore synchronous inlet and outlet of liquid of the heat exchange pipe core assemblies are achieved, and asynchronous circulation of the liquid in all pipe cores is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment, specifically to a tube-type heat exchange device. Background Technology

[0002] A tube-and-tube heat exchanger is a type of heat exchanger designed with a tube bundle arrangement. Depending on the tube bundle arrangement, fluid flow path, and heat transfer mechanism, tube-and-tube heat exchangers can be classified into several types, such as immersion tube arrays and shell-and-tube arrays. Each type has its specific application scenarios and advantages, capable of meeting the heat exchange requirements under different process conditions. Its working principle is based on heat conduction and convection heat transfer. When two fluids at different temperatures flow through the tube side and shell side of the heat exchanger respectively, heat is transferred from the high-temperature fluid to the low-temperature fluid through the tube walls, thus achieving heat exchange.

[0003] A high-efficiency heat exchange tube-type greywater heat exchanger with publication number CN219015042U is disclosed. Each pair of adjacent tube banks are arranged alternately. Each tube bank includes several heat exchange tubes welded together side by side. The cross-section of each heat exchange tube is crescent-shaped and the planar side of each heat exchange tube faces upward. A greywater inlet is opened at the top of the shell and a greywater outlet is opened at the bottom of the shell. A water inlet for heating is opened at one end of the shell in the horizontal direction and a water outlet for heating is opened at the other end. One end of several heat exchange tubes is connected to the water inlet for heating and the other end is connected to the water outlet for heating.

[0004] However, in the current tube heat exchange process, when cold fluid is injected into the tube core, the inconsistent height of each tube core causes a time difference in the flow of liquid within the tube core, and also leads to the presence of air bubbles in the liquid within the tube core. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a pipe-type heat exchange device to solve the above-mentioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides a tube-type heat exchange device, including a cooler cylinder. Tube sheets are provided at both ends inside the cooler cylinder. Two sets of heat exchange tube core assemblies are provided between the two tube sheets. A heat exchange chamber is formed inside the cooler cylinder between the two tube sheets. A cold fluid rotation chamber is formed between one tube sheet and the inner end face of the cooler cylinder. A cold fluid inlet and outlet chamber is formed between the other tube sheet and the inner end face of the cooler cylinder. A partition is provided in the cold fluid inlet and outlet chamber to separate it into a cold fluid outlet chamber and a cold fluid inlet chamber.

[0010] The cold fluid inlet and outlet chamber is provided with a first opening and closing control structure for opening and closing control of the ends of a set of heat exchange tube core assemblies below.

[0011] The cold fluid rotary chamber is equipped with a second opening and closing control structure for opening and closing control of the ends of the upper set of heat exchange tube core assemblies.

[0012] Furthermore, the heat exchange tube core assembly includes several tube cores, and the tube cores of the two sets of heat exchange tube core assemblies are provided with spiral ribs for forming liquid spiral channels in the heat exchange chamber. The two ends of each tube core pass through two tube sheets respectively and are connected to the cold fluid rotary chamber and the cold fluid inlet and outlet chamber respectively.

[0013] Furthermore, the first opening and closing control structure includes a first door seat, which is fixedly installed on the lower side of the refrigeration cylinder. A first lifting chamber is formed inside the first door seat. A first opening and closing door is installed in the first lifting chamber and moves up and down. A first electric telescopic rod for driving the first opening and closing door to move up and down inside is also provided in the first lifting chamber. A first hole for embedding the first electric telescopic rod is provided inside the first opening and closing door.

[0014] Furthermore, the second opening and closing control structure includes a second door seat, which is fixedly installed on the upper side of the refrigeration cylinder. A second lifting chamber is formed inside the second door seat. A second opening and closing door is installed in the second lifting chamber and moves up and down. A second electric telescopic rod for driving the second opening and closing door to move up and down inside is also provided in the second lifting chamber. A second insertion hole for embedding the second electric telescopic rod is provided inside the second opening and closing door.

[0015] Furthermore, the cooler cylinder includes a cylindrical body with end caps sealed at both ends. One of the end caps is provided with a cold fluid outlet pipe that communicates with the cold fluid outlet chamber and a cold fluid inlet pipe that communicates with the cold fluid inlet chamber. The end cap is also provided with two temperature sensors for detecting the fluid temperature inside the cold fluid outlet chamber and the cold fluid inlet chamber, respectively.

[0016] Furthermore, the cold fluid inlet pipe is respectively equipped with a first valve, a first branch pipe and a pneumatic angle seat valve, and the first branch pipe is equipped with a second valve.

[0017] Furthermore, a third valve and a second branch pipe are provided on the cold fluid outlet pipe, and a fourth valve is provided on the second branch pipe.

[0018] Furthermore, the upper side of the cooler cylinder is connected to a hot fluid inlet pipe that can communicate with the interior of the heat exchange chamber, and the bottom side of the cooler cylinder is connected to a hot fluid outlet pipe that can communicate with the interior of the heat exchange chamber. The hot fluid outlet pipe and the hot fluid inlet pipe are respectively located at both ends of the cooler cylinder along its axial direction, and the diameter of the hot fluid inlet pipe is larger than the diameter of the hot fluid outlet pipe.

[0019] Furthermore, the lower side of the cooler cylinder is provided with two or more support legs, and each support leg is provided with a mounting plate at its bottom end, with two or more mounting holes on the mounting plate.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. The first opening and closing control structure controls the opening and closing of the heat exchange tube core assembly located in the lower group, and the second opening and closing control structure controls the opening and closing of the heat exchange tube core assembly located in the upper group, thereby realizing the synchronous entry and exit of liquid in the heat exchange tube core assembly and avoiding the asynchronous flow of liquid in each tube core.

[0023] 2. Spiral ribs can lengthen the flow distance of hot fluid in the heat exchange chamber, thereby increasing the heat exchange time between hot and cold fluids within a limited space. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0028] Figure 4 This is a utility model Figure 3 A schematic diagram of the three-dimensional structure;

[0029] Figure 5 This is a schematic diagram of the end cap structure of this utility model.

[0030] The reference numerals in the attached drawings are explained as follows: 1. Cooler cylinder; 101. Cylinder body; 102. End cap; 103. Heat exchange chamber; 104. Cold fluid outlet chamber; 105. Cold fluid recirculation chamber; 106. Tube sheet; 107. Baffle plate; 108. Cold fluid inlet chamber; 2. First opening and closing control structure; 201. First door seat; 202. First electric telescopic rod; 203. First opening and closing door; 3. Second opening and closing control structure; 301. Second door seat; 302. Second electric telescopic rod; 303. Second... 4. Opening and closing door; 5. Hot fluid outlet pipe; 6. Support leg; 7. Mounting base plate; 8. Mounting hole; 9. Heat exchanger core assembly; 10. Core tube; 11. Spiral rib plate; 2. Hot fluid inlet pipe; 3. Cold fluid inlet pipe; 4. First valve; 5. First branch pipe; 6. Second valve; 7. Pressure gauge; 8. Pneumatic angle seat valve; 9. Cold fluid outlet pipe; 10. Third valve; 11. Second branch pipe; 12. Fourth valve; 13. Temperature sensor. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] See Figure 1-5 As shown, this utility model provides a tube-type heat exchange device, including a cooler cylinder 1. Tube sheets 106 are provided at both ends inside the cooler cylinder 1. Two sets of heat exchange tube core assemblies 6 are provided between the two tube sheets 106. A heat exchange chamber 103 is formed inside the cooler cylinder 1 between the two tube sheets 106. A cold fluid rotation chamber 105 is formed between one tube sheet 106 and the inner end face of the cooler cylinder 1. A cold fluid inlet and outlet chamber is formed between the other tube sheet 106 and the inner end face of the cooler cylinder 1. A partition 107 is provided in the cold fluid inlet and outlet chamber to separate it into a cold fluid outlet chamber 104 and a cold fluid inlet chamber 108.

[0033] The cold fluid inlet and outlet chamber is provided with a first opening and closing control structure 2 for opening and closing control of the ends of the lower set of heat exchange tube core assemblies 6; the cold fluid rotary chamber 105 is provided with a second opening and closing control structure 3 for opening and closing control of the ends of the upper set of heat exchange tube core assemblies 6.

[0034] See instruction manual attached Figure 2 As shown, the heat exchange tube assembly 6 includes several tubes 601. The tubes 601 of both sets of heat exchange tube assemblies 6 are provided with spiral ribs 602 for forming liquid spiral channels within the heat exchange chamber 103. Each tube 601 has two ends passing through two tube sheets 106 and communicating with the cold fluid rotary chamber 105 and the cold fluid inlet / outlet chamber, respectively. Through this specific structural design, the spiral ribs 602 can lengthen the flow distance of the hot fluid within the heat exchange chamber 103, thereby increasing the heat exchange time between the hot and cold fluids within a limited space.

[0035] The first opening and closing control structure 2 includes a first door seat 201, which is fixedly installed on the lower side of the refrigeration cylinder 1. A first lifting chamber is formed inside the first door seat 201. The upper end of the first lifting chamber is open and communicates with the interior of the cold fluid inlet chamber 108. A first opening and closing door 203 is installed in the first lifting chamber and moves up and down. During the lifting and lowering process, the outer wall of the first opening and closing door 203 abuts and seals with the upper end opening of the first lifting chamber. A first electric telescopic rod 202 for driving the first opening and closing door 203 to move up and down inside is also provided in the first lifting chamber. A first embedding hole for embedding the first electric telescopic rod 202 is provided in the first opening and closing door 203.

[0036] The second opening and closing control structure 3 includes a second door seat 301, which is fixedly installed on the upper side of the refrigeration cylinder 1. A second lifting chamber is formed inside the second door seat 301. The lower opening of the second lifting chamber is connected to the interior of the cold fluid rotation chamber 105. A second opening and closing door 303 is installed in the second lifting chamber and moves up and down. During the up and down movement of the second opening and closing door 303, the outer wall of the second opening and closing door 303 and the lower opening of the second lifting chamber abut against each other and seal each other. A second electric telescopic rod 302 for driving the second opening and closing door 303 to move up and down inside is also provided in the second lifting chamber. A second embedding hole for embedding the second electric telescopic rod 302 is provided in the second opening and closing door 303.

[0037] The cooler cylinder 1 includes a cylindrical body 101. End caps 102 are sealed at both ends of the cylindrical body 101. One end cap 102 is provided with a cold fluid outlet pipe 9 that communicates with the cold fluid outlet chamber 104 and a cold fluid inlet pipe 8 that communicates with the cold fluid inlet chamber 108. The end cap 102 is also provided with two temperature sensors 10 for detecting the internal fluid temperature of the cold fluid outlet chamber 104 and the cold fluid inlet chamber 108, respectively.

[0038] The cold fluid inlet pipe 8 is equipped with a first valve 801, a first branch pipe 802, and a pneumatic angle seat valve 805 for regulating flow and pressure. The first branch pipe 802 is equipped with a second valve 803.

[0039] A third valve 901 and a second branch pipe 902 are installed on the cold fluid outlet pipe 9, and a fourth valve 903 is installed on the second branch pipe 902.

[0040] The upper side of the cooler cylinder 1 is connected to a hot fluid inlet pipe 7 that can communicate with the interior of the heat exchange chamber 103, and the bottom side of the cooler cylinder 1 is connected to a hot fluid outlet pipe 4 that can communicate with the interior of the heat exchange chamber 103. The hot fluid outlet pipe 4 and the hot fluid inlet pipe 7 are respectively located at both ends of the cooler cylinder 1 along its axial direction, thereby maximizing the entire heat exchange stroke. The diameter of the hot fluid inlet pipe 7 is larger than the diameter of the hot fluid outlet pipe 4.

[0041] The lower side of the refrigeration cylinder 1 is provided with two or more support legs 5, and each support leg 5 is provided with a mounting plate 501 at its bottom end. The mounting plate 501 has two or more mounting holes 502.

[0042] Working principle and technical effects of this utility model:

[0043] The cold fluid enters the cold fluid inlet chamber 108 from the cold fluid inlet pipe 8, then enters the cold fluid rotary chamber 105 through the lower tube core 601, then enters the upper tube core 601 through the cold fluid rotary chamber 105 and enters the cold fluid outlet chamber 104, and finally exits through the cold fluid outlet pipe 9.

[0044] In the above process, before the cold fluid enters the cold fluid inlet chamber 108 from the cold fluid inlet pipe 8, the first electric telescopic rod 202 of the first opening and closing control structure 2 is at its maximum push stroke, so that the first opening and closing door 203 can seal the end of the tube core 601 located in the lower group. The second electric telescopic rod 302 of the second opening and closing control structure 3 is at its maximum push stroke, so that the second opening and closing door 303 can seal the end of the tube core 601 located in the upper group. After the cold fluid inlet chamber 108 is filled with liquid, the first electric telescopic rod 202 drives the first opening and closing door 203 to move downward to release the seal on the end of the tube core 601 located in the lower group. After the cold fluid rotary chamber 105 is filled with liquid, the second electric telescopic rod 302 drives the second opening and closing door 303 to move upward to release the seal on the end of the tube core 601 located in the upper group. This ensures the uniformity of heat exchange when the hot fluid enters the heat exchange chamber 103 through the hot fluid inlet pipe 7, and prevents air from entering the tube core 601.

[0045] The hot fluid is introduced through the hot fluid inlet pipe 7, passes through the liquid spiral channel formed by the spiral rib 602, and is then discharged through the cold fluid outlet pipe 9. During this process, the hot fluid and the cold fluid exchange heat through the tube wall of the core 601.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A shell and tube heat exchanger, characterized by: The application relates to a cold cleaner, which comprises a cold cleaner cylinder (1), two tube plates (106) arranged at the two ends of the cold cleaner cylinder (1), two sets of heat exchange tube core assemblies (6) arranged above and below the two tube plates (106), a heat exchange chamber (103) formed in the cold cleaner cylinder (1) between the two tube plates (106), a cold fluid rotating chamber (105) formed between one tube plate (106) and the inner end face of the cold cleaner cylinder (1), a cold fluid inlet and outlet chamber formed between the other tube plate (106) and the inner end face of the cold cleaner cylinder (1), and a partition plate (107) arranged in the cold fluid inlet and outlet chamber for separating the cold fluid inlet and outlet chamber into a cold fluid outlet chamber (104) and a cold fluid inlet chamber (108). The cold fluid inlet and outlet chamber is provided with a first opening and closing control structure (2) for opening and closing the end of the lower set of heat exchange tube core assemblies (6). The cold fluid rotating chamber (105) is provided with a second opening and closing control structure (3) for opening and closing the end of the upper set of heat exchange tube core assemblies (6).

2. The shell-and-tube heat exchanger according to claim 1, characterized in that: The heat exchange tube core assembly (6) comprises a plurality of tube cores (601), and the tube cores (601) of the two sets of heat exchange tube core assemblies (6) are provided with spiral rib plates (602) for forming liquid spiral channels in the heat exchange chamber (103); the two ends of each tube core (601) pass through the two tube plates (106) and are in communication with the cold fluid rotating chamber (105) and the cold fluid inlet and outlet chamber, respectively.

3. The shell and tube heat exchanger as claimed in claim 1, wherein: The first opening and closing control structure (2) comprises a first door seat (201) fixedly arranged on the lower side of the cold cleaner cylinder (1), a first lifting chamber is formed in the first door seat (201), a first opening and closing door (203) is arranged in the first lifting chamber and moves up and down, a first electric telescopic rod (202) is arranged in the first lifting chamber and drives the first opening and closing door (203) to move up and down, and a first embedding hole is formed in the first opening and closing door (203) and is used for embedding the first electric telescopic rod (202).

4. The shell and tube heat exchanger as claimed in claim 1, wherein: The second opening and closing control structure (3) comprises a second door seat (301) fixedly arranged on the upper side of the cold cleaner cylinder (1), a second lifting chamber is formed in the second door seat (301), a second opening and closing door (303) is arranged in the second lifting chamber and moves up and down, a second electric telescopic rod (302) is arranged in the second lifting chamber and drives the second opening and closing door (303) to move up and down, and a second embedding hole is formed in the second opening and closing door (303) and is used for embedding the second electric telescopic rod (302).

5. The shell and tube heat exchanger as claimed in claim 1, wherein: The cold cleaner cylinder (1) comprises a cylindrical cylinder body (101), both ends of the cylinder body (101) are sealed with end covers (102), one of the end covers (102) is provided with a cold fluid outlet pipe (9) and a cold fluid inlet pipe (8) respectively communicating with a cold fluid outlet chamber (104) and a cold fluid inlet chamber (108), and the end cover (102) is also provided with two temperature sensors (10) for detecting the temperature of the cold fluid outlet chamber (104) and the cold fluid inlet chamber (108) respectively.

6. A shell and tube heat exchanger as claimed in claim 5, wherein: The cold fluid inlet pipe (8) is provided with a first valve (801), a first branch pipe (802) and a pneumatic angle seat valve (805) respectively, and the first branch pipe (802) is provided with a second valve (803).

7. The shell and tube heat exchanger as claimed in claim 5, wherein: The cold fluid outlet pipe (9) is provided with a third valve (901) and a second branch pipe (902), and the second branch pipe (902) is provided with a fourth valve (903).

8. The shell and tube heat exchanger as claimed in claim 1, wherein: The cold cleaner cylinder (1) is connected with a hot fluid inlet pipe (7) which can communicate with the inside of the heat exchange chamber (103), and the bottom side of the cold cleaner cylinder (1) is connected with a hot fluid outlet pipe (4) which can communicate with the inside of the heat exchange chamber (103), the hot fluid outlet pipe (4) and the hot fluid inlet pipe (7) are respectively arranged at both ends of the cold cleaner cylinder (1) along the axial direction, and the diameter of the hot fluid inlet pipe (7) is larger than that of the hot fluid outlet pipe (4).

9. The calandria heat exchanger of claim 1 wherein: The lower side of the cold cleaner cylinder (1) is provided with two or more supporting legs (5), and the bottom end of each supporting leg (5) is provided with a mounting seat plate (501), and the mounting seat plate (501) is provided with two or more mounting holes (502).

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