Energy-saving shell-and-tube heat exchanger for hotels

Abstract

The invention relates to the technical field of heat exchangers, and discloses a hotel energy-saving shell-and-tube heat exchanger which comprises a heat exchanger shell, a sealing plate, six sealing plugs, a stirring roller and a driving gear. When heat exchange is carried out, a sealing plate can rotate under the action of a driving motor, then a transmission port in the sealing plate can communicate with different heat exchange pipes, heat exchange operation can be carried out on the different heat exchange pipes, and the positions of the heat exchange pipes are different, so that the heat exchange efficiency is improved. When the transmission ports slide on the surfaces of the corresponding heat exchange tubes, the coaxially connected positioning supports start to rotate, so that heat exchange with media at different positions in the heat exchanger shell is achieved, heat exchange is more sufficient, and the situation that the heat exchange efficiency is reduced due to the fact that the local temperature is too high is reduced; the positioning support drives the combined protrusions at the bottom to rotate, and the communicated heat exchange pipes are driven to be opened alternately through the combined protrusions, so that the heat exchange time is prolonged, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchangers, and in particular relates to an energy-saving shell and tube heat exchanger for a hotel. Background Art

[0002] As a commercial place with high energy consumption, the hotel cannot do without heat exchange equipment in hot water supply, air conditioning system, kitchen refrigeration and other links. Shell and tube heat exchangers can be used to recover and reuse heat energy, thus achieving the goal of saving energy.

[0003] It is found during the use of the existing shell and tube heat exchanger that when the high-temperature liquid flows from the inside of the heat exchanger, the contact time between the high-temperature liquid and the heat exchanger is short, resulting in a short heat transfer time, which leads to insufficient heat exchange, and then causes part of the heat to be lost, resulting in a waste of resources.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the technical problem that it is found in the existing shell and tube heat exchanger during use that when the high-temperature liquid flows from the inside of the heat exchanger, the contact time between the high-temperature liquid and the heat exchanger is short, resulting in a short heat transfer time, which leads to insufficient heat exchange, and then causes part of the heat to be lost, resulting in a waste of resources, the basic concept of the technical solution adopted by the present invention is:

[0006] A hotel energy-saving shell and tube heat exchanger comprises a heat exchanger shell, a sealing plate, six sealing plugs, a stirring roller and a driving gear.

[0007] A pair of partitions are symmetrically installed on the inner wall of the heat exchanger shell, and six heat exchange tubes are connected between the pair of partitions;

[0008] The sealing plate is rotatably mounted on the surface of the partition, a pair of transmission ports are symmetrically opened on the sealing plate, and the positions of the transmission ports correspond to the positions of the heat exchange tubes, a driving motor is mounted on the rotation center of the sealing plate, a synchronous shaft is mounted on the sealing plate, the synchronous shaft movably penetrates the partition, and a positioning bracket is mounted on the end of the synchronous shaft, two pairs of combined protrusions are mounted on the inner side wall of the positioning bracket, the positions of the two pairs of combined protrusions correspond to the positions of the transmission ports, and the two pairs of combined protrusions are respectively surrounded by a plurality of pairs of protrusions and mounted on the positioning bracket;

[0009] Each of the sealing plugs is slidably inserted in the corresponding heat exchange tube outlet position, and a push rod is installed on each of the sealing plugs. The push rod on one of the sealing plugs fits with the bumps on one group of combined protrusions, and the intervals between the bumps on the other group of combined protrusions are slidably connected with the push rod on the other sealing plug, and the two groups of sealing plugs are symmetrically arranged, and a limit rod is slidably arranged on the side wall of the sealing plug, and a limit spring is arranged between the limit rod and the sealing plug;

[0010] The stirring roller is mounted on a synchronous shaft, and the stirring roller is placed in a cavity formed by a pair of partitions and a heat exchanger shell;

[0011] The driving gear is installed on the stirring roller, and three pairs of driven gears are installed on the driving gear. An adjusting roller is installed at the rotation center of each pair of driven gears. A cylindrical cam groove is opened on the adjusting roller. A connecting plate is slidably arranged on the cylindrical cam groove, and the connecting plate slides horizontally in the inner cavity of the heat exchanger shell. A pair of stirring plates are installed on the connecting plate, and the pair of stirring plates are placed on both sides of the corresponding heat exchange tubes.

[0012] As a preferred embodiment of the present invention, connecting buckets are installed at the ends of both sides of the heat exchanger shell, the connecting buckets are conical, the connecting buckets and the heat exchanger shell are wrapped on the outside of the partition, and a connecting flange is installed at the end of the connecting bucket. The connecting flange is provided with a mounting hole, and the driving motor and the positioning bracket are placed in the connecting bucket.

[0013] As a preferred embodiment of the present invention, a water inlet pipe and a water outlet pipe are installed on the heat exchanger shell, and the water inlet pipe and the water outlet pipe are interconnected with the cavity formed between a pair of partitions and the heat exchanger shell, and the water inlet pipe is lower than the height of the water outlet pipe.

[0014] As a preferred embodiment of the present invention, a column is installed at the bottom of the heat exchanger shell, the column is in a vertical state, a base is fixedly installed at the bottom of the column, and an anti-slip pad is installed at the bottom of the base, and reinforcing ribs are installed on the side walls of the column, the bottom of the reinforcing ribs are interconnected with the upper surface of the column, and the reinforcing ribs are triangular.

[0015] As a preferred embodiment of the present invention, the output shaft of the drive motor and the synchronous shaft are on the same axis, support legs are installed on the bottom shell of the drive motor, and the support legs are welded to the bottom of the connecting bucket. A guide cover is installed on the drive motor, and the guide cover is truncated cone-shaped, and a gap is left between the outer wall of the guide cover and the inner wall of the connecting bucket.

[0016] As a preferred embodiment of the present invention, a connecting column is installed on the positioning bracket, the connecting column is rotatably connected to the partition, the connecting column is interconnected with the synchronization shaft, and a ball is installed at the end of the push rod, and the ball is rollingly connected to the inner wall of the positioning bracket.

[0017] As a preferred embodiment of the present invention, the limit rod is fixedly installed on the side wall of the partition, and a slide is slidably provided on the side wall of the limit rod. The side wall of the slide is connected to the sealing plug, and a limit spring is sleeved on the limit rod. One end of the limit spring is clamped on the side wall of the partition, and the other end is clamped on the side wall of the slide. A limit seat is installed at the end of the limit rod, and the limit seat is slidably connected to the annular guide rail opened by the positioning bracket.

[0018] As a preferred embodiment of the present invention, a plurality of pairs of stirring rods are installed around the surface of the stirring roller.

[0019] As a preferred embodiment of the present invention, the number of teeth on the driven gear is smaller than that on the driving gear, a gear shaft is installed at the center of the driven gear, both ends of the gear shaft are rotatably connected to the partition respectively, and the gear shaft is interconnected with the rotation center of the adjustment roller.

[0020] As a preferred embodiment of the present invention, a guide slider is installed on the connecting plate, a guide rod is installed inside the guide slider, synchronization plates are installed at both ends of the guide rod, a fixed seat is installed at the corner of the synchronization plate, the fixed seat is welded to the side wall of the partition, and the guide slider is slidably connected to the cylindrical cam groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] When the present invention performs heat exchange, the sealing plate can rotate under the action of the driving motor, so that the transmission port on the sealing plate can be connected with different heat exchange tubes, and heat exchange operations can be performed on different heat exchange tubes. The positions of the heat exchange tubes are different, so heat exchange can be performed with the media at different positions in the heat exchanger shell, so that the heat exchange is more sufficient, and the situation of reduced heat exchange efficiency due to excessive local temperature is reduced. When the transmission port slides on the surface of the corresponding heat exchange tube, the coaxially connected positioning bracket starts to rotate, and the positioning bracket drives the combined protrusions at the bottom to rotate. When the protrusions on one group of combined protrusions are squeezed with the push rod, the push rod drives the sealing plug to be inserted into the inside of the heat exchange tube, so that the liquid inside the heat exchange tube cannot flow, thereby increasing the heat exchange time and improving the heat exchange effect. At this time, the protrusion gap on the other group of combined protrusions is in contact with the push rod, so under the action of the limit spring, the heat exchange tube at this position is open, so that the liquid can flow from the inside. By alternating the heat exchange operations between the two, the heat exchange tube can be fully heat exchanged, so that the heat energy can be recovered.

[0023] During the movement of the driving motor of the present invention, the driving motor drives the stirring roller to rotate through the synchronous shaft, so that the liquid inside the heat exchanger shell can be fully mixed, thereby ensuring that the heat exchange can be carried out efficiently, and the stirring roller can also drive the driven gear to rotate through the driving gear, and the driven gear can drive the adjusting roller to rotate, and the cylindrical cam groove on the adjusting roller drives the stirring plate to slide back and forth, disturbing the water flow outside the heat exchange tube, reducing the occurrence of reduced heat exchange efficiency due to excessive local temperature of the liquid, and improving the heat exchange efficiency.

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a hotel energy-saving shell and tube heat exchanger;

[0027] Figure 2 A cross-sectional view of the connecting bucket of a hotel energy-saving shell and tube heat exchanger;

[0028] Figure 3 This is an exploded structural diagram of the sealing plate of a hotel energy-saving shell and tube heat exchanger;

[0029] Figure 4 It is an overall cross-sectional view of an energy-saving shell and tube heat exchanger for a hotel;

[0030] Figure 5 A hotel energy-saving shell and tube heat exchanger Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 A hotel energy-saving shell and tube heat exchanger Figure 4 Bottom view of

[0032] Figure 7 A hotel energy-saving shell and tube heat exchanger Figure 6 Enlarged view of point B in the middle;

[0033] Figure 8 It is a side view of a hotel energy-saving shell and tube heat exchanger;

[0034] Fig. 9 A three-dimensional diagram of a positioning bracket for a hotel energy-saving shell and tube heat exchanger;

[0035] Fig.10 A cross-sectional view of a heat exchanger shell of a hotel energy-saving shell and tube heat exchanger;

[0036] Fig.11 It is a partial cross-sectional view of an energy-saving shell and tube heat exchanger for a hotel;

[0037] Fig.12 A hotel energy-saving shell and tube heat exchanger Fig.11 Enlarged view of point C in the middle;

[0038] Fig.13 A three-dimensional diagram of the adjusting roller of a hotel energy-saving shell and tube heat exchanger.

[0039] In the figure:

[0040] 1. Heat exchanger shell; 11. Connecting bucket; 111. Connecting flange; 12. Column; 121. Reinforcement rib; 122. Base; 13. Water inlet pipe; 14. Water outlet pipe; 15. Baffle; 151. Heat exchange tube;

[0041] 2. Sealing plate; 21. Driving motor; 211. Support leg; 212. Guide cover; 22. Transmission port; 221. Synchronous shaft; 222. Connecting column; 223. Positioning bracket; 23. Annular guide rail; 24. Combined protrusion; 241. Protrusion;

[0042] 3. Sealing plug; 31. Ejector rod; 311. Rolling ball; 32. Limit rod; 321. Slide plate; 322. Limit spring; 323. Limit seat;

[0043] 4. stirring roller; 41. stirring rod;

[0044] 5. Driving gear; 51. Driven gear; 511. Gear shaft; 52. Adjusting roller; 521. Cylindrical cam groove; 522. Guide slider; 523. Guide rod; 524. Synchronous plate; 525. Fixed seat; 53. Connecting plate; 531. Stirring plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0046] Embodiment 1:

[0047] like Figures 1 to 13 As shown, a hotel energy-saving shell and tube heat exchanger includes a heat exchanger shell 1, a sealing plate 2, six sealing plugs 3, a stirring roller 4 and a driving gear 5.

[0048] A pair of partitions 15 are symmetrically installed on the inner wall of the heat exchanger shell 1, and six heat exchange tubes 151 are connected between the pair of partitions;

[0049] The sealing plate 2 is rotatably mounted on the surface of the partition 15, and a pair of transmission ports 22 are symmetrically opened on the sealing plate 2, and the position of the transmission ports 22 corresponds to the position of the heat exchange tube 151. A driving motor 21 is installed on the rotation center of the sealing plate 2, and a synchronous shaft 221 is installed on the sealing plate 2. The synchronous shaft 221 movably passes through the partition 15, and a positioning bracket 223 is installed at the end of the synchronous shaft 221. Two pairs of combined protrusions 24 are installed on the inner side wall of the positioning bracket 223. The positions of the two pairs of combined protrusions 24 correspond to the positions of the transmission ports 22, and the two pairs of combined protrusions 24 are respectively surrounded by a plurality of pairs of protrusions 241 and mounted on the positioning bracket 223;

[0050] The sealing plate 2 can rotate under the action of the driving motor 21, so that the transmission port 22 on the sealing plate 2 can be connected with different heat exchange tubes 151, and heat exchange operations can be performed on different heat exchange tubes 151. The positions of the heat exchange tubes 151 are different, so heat exchange can be performed with the media at different positions in the heat exchanger shell 1, so that the heat exchange is more sufficient and the occurrence of reduced heat exchange efficiency due to excessive local temperature is reduced.

[0051] Each sealing plug 3 is slidably inserted at the outlet position of the corresponding heat exchange tube 151, and a push rod 31 is installed on each sealing plug 3. The push rod 31 on one sealing plug 3 fits with the protrusion 241 on one group of combined protrusions 24, and the interval between the protrusions 241 on the other group of combined protrusions 24 is slidably connected with the push rod 31 on the other sealing plug 3, and the two groups of sealing plugs 3 are symmetrically arranged, and a limit rod 32 is slidably arranged on the side wall of the sealing plug 3, and a limit spring 322 is arranged between the limit rod 32 and the sealing plug 3;

[0052] When the transfer port 22 slides on the surface of the corresponding heat exchange tube 151, the coaxially connected positioning bracket 223 starts to rotate, and the positioning bracket 223 drives the combined protrusion 24 at the bottom to rotate. When the protrusion 241 on one group of combined protrusions 24 is squeezed with the push rod 31, the push rod 31 drives the sealing plug 3 to be inserted into the inside of the heat exchange tube 151, so that the liquid inside the heat exchange tube 151 cannot flow, thereby increasing the heat exchange time and improving the heat exchange effect. At this time, the gap between the protrusion 241 on the other group of combined protrusions 24 contacts the push rod 31, so under the action of the limit spring 322, the outlet of the heat exchange tube 151 at this position is open, so that the liquid can flow from the inside. The heat exchange operation is performed by alternating opening and closing of the two heat exchange tubes 151, so that the heat exchange tube 151 can fully perform heat exchange and recover heat energy.

[0053] The stirring roller 4 is mounted on the synchronous shaft 221, and the stirring roller 4 is placed in the cavity formed by a pair of partitions 15 and the heat exchanger shell 1;

[0054] The driving gear 5 is installed on the stirring roller 4, and three pairs of driven gears 51 are installed on the driving gear 5. An adjusting roller 52 is installed at the rotation center of each pair of driven gears 51. A cylindrical cam groove 521 is opened on the adjusting roller 52. A connecting plate 53 is slidably arranged on the cylindrical cam groove 521, and the connecting plate 53 slides horizontally in the inner cavity of the heat exchanger shell 1. A pair of stirring plates 531 are installed on the connecting plate 53, and the pair of stirring plates 531 are placed on both sides of the corresponding heat exchange tube 151. When the driving motor 21 is in motion, the driving motor 21 drives the stirring roller 4 to rotate through the synchronous shaft 221, so that the liquid inside the heat exchanger shell 1 can be fully mixed, thereby ensuring that the heat exchange can be carried out efficiently, and the stirring roller 4 can also drive the driven gear 51 to rotate through the driving gear 5, and the driven gear 51 can drive the adjusting roller 52 to rotate, and the cylindrical cam groove 521 on the adjusting roller 52 drives the stirring plate 531 to slide back and forth, disturbing the water flow outside the heat exchange tube 151, reducing the occurrence of reduced heat exchange efficiency due to excessive local temperature of the liquid, thereby improving the heat exchange efficiency.

[0055] like Figures 1 to 13 As shown, in a specific embodiment, connecting buckets 11 are installed at the ends of both sides of the heat exchanger shell 1. The connecting buckets 11 are conical and serve the purpose of guiding the liquid. The connecting buckets 11 and the heat exchanger shell 1 are wrapped on the outside of the partition 15. A connecting flange 111 is installed at the end of the connecting bucket 11. A mounting hole is opened on the connecting flange 111. The external pipeline can be connected through the connecting flange 111 and the mounting hole, and the driving motor 21 and the positioning bracket 223 are placed in the connecting bucket 11.

[0056] like Figures 1 to 13 As shown, further, a water inlet pipe 13 and a water outlet pipe 14 are installed on the heat exchanger shell 1, and the water inlet pipe 13 and the water outlet pipe 14 are interconnected with the cavity formed between a pair of partitions 15 and the heat exchanger shell 1, and the water inlet pipe 13 is lower than the height of the water outlet pipe 14, wherein the height difference between the two ensures that water can flow upward from the bottom of the heat exchanger shell 1 and finally be discharged from the water outlet pipe 14, thereby ensuring that the interior of the heat exchanger shell 1 can be filled with water.

[0057] Embodiment 2:

[0058] The difference between the above embodiment and this embodiment is that: Figures 1 to 13 As shown, a column 12 is installed at the bottom of the heat exchanger shell 1, the column 12 is in a vertical state, a base 122 is fixedly installed at the bottom of the column 12, and an anti-slip pad is installed at the bottom of the base 122, and a reinforcing rib 121 is installed on the side wall of the column 12, the bottom of the reinforcing rib 121 is connected to the upper surface of the column 12, and the reinforcing rib 121 is triangular. The above structure mainly serves the purpose of support.

[0059] like Figures 1 to 13As shown, in a specific embodiment, the output shaft of the driving motor 21 and the synchronous shaft 221 are on the same axis, and a support leg 211 is installed on the bottom shell of the driving motor 21. The support leg 211 is welded and set at the bottom of the connecting bucket 11, and the support leg 211 has a positioning effect. A guide cover 212 is installed on the driving motor 21, and the guide cover 212 is truncated cone-shaped, and a gap is left between the outer wall of the guide cover 212 and the inner wall of the connecting bucket 11, and the guide cover 212 serves the purpose of guiding the liquid.

[0060] like Figures 1 to 13 As shown, further, a connecting column 222 is installed on the positioning bracket 223, the connecting column 222 is rotatably connected to the partition 15, the connecting column 222 is mutually connected to the synchronization shaft 221, and a ball 311 is installed at the end of the top rod 31, and the ball 311 is rollingly connected to the inner wall of the positioning bracket 223. The ball 311 can reduce the friction force during the sliding process between the top rod 31 and the inner wall of the positioning bracket 223.

[0061] Embodiment 3:

[0062] The difference between the above embodiment and this embodiment is that: Figures 1 to 13 As shown, the limiting rod 32 is fixedly installed on the side wall of the partition 15, and the side wall of the limiting rod 32 is slidably provided with a slide plate 321, and the side wall of the slide plate 321 is connected to the sealing plug 3. A limiting spring 322 is sleeved on the limiting rod 32, and one end of the limiting spring 322 is clamped on the side wall of the partition 15, and the other end is clamped on the side wall of the slide plate 321. A limiting seat 323 is installed at the end of the limiting rod 32, and the limiting seat 323 is slidably connected with the annular guide rail 23 provided on the positioning bracket 223. When the protrusion 241 and the top rod 31 are not in contact, under the action of the limiting spring 322, the limiting spring 322 drives the slide plate 321 to slide, and the slide plate 321 drives the sealing plug 3 to move, and finally the sealing plug 3 can be separated from the corresponding heat exchange tube 151, and the positioning bracket 223 can slide on the limiting seat 323 during the rotation process, which plays a guiding role.

[0063] like Figures 1 to 13 As shown, in a specific embodiment, a plurality of pairs of stirring rods 41 are installed around the surface of the stirring roller 4. When the sealing plate 2 rotates, the sealing plate 2 can drive the synchronous shaft 221 to rotate, and the synchronous shaft 221 is installed with the stirring roller 4. At this time, the stirring roller 4 can drive the stirring rod 41 to rotate, and the stirring rod 41 can surround the internal water, so that the temperature of the water body can be kept uniform, thereby improving the heat exchange efficiency.

[0064] like Figures 1 to 13As shown, further, the number of teeth of the driven gear 51 is less than that of the driving gear 5, a gear shaft 511 is installed at the center of the driven gear 51, both ends of the gear shaft 511 are respectively connected to the partition 15 for rotation, and the gear shaft 511 is connected to the rotation center of the adjustment roller 52. A guide slider 522 is installed on the connecting plate 53, a guide rod 523 is installed inside the guide slider 522, a synchronization plate 524 is installed at both ends of the guide rod 523, a fixing seat 525 is installed at the corner of the synchronization plate 524, the fixing seat 525 is welded to the side wall of the partition 15, and the guide slider 522 is slidably connected to the cylindrical cam groove 521. After the stirring roller 4 rotates, the driving gear 5 on the stirring roller 4 rotates, and the driving gear 5 can drive the small driven gear 51 to rotate, and then can drive the driven gear 51 to rotate quickly, and the driven gear 51 drives the gear shaft 511 to rotate, and the gear shaft 511 drives the entire adjusting roller 52 to start rotating, and the position of the cylindrical cam groove 521 on the adjusting roller 52 changes, and then the cylindrical cam groove 521 drives the entire guide slider 522 to slide back and forth on the guide rod 523, thereby achieving the purpose of limiting.

[0065] The implementation principle of a hotel energy-saving shell and tube heat exchanger in this embodiment is as follows:

[0066] When performing heat exchange operation, the operator needs to first connect the heat-rich liquid to the connection bucket 11 through the connection flange 111, and then the liquid can be guided into the heat exchanger shell 1 through the connection bucket 11. The operator also needs to pass cold water into the water inlet pipe 13, and the liquid filling the heat exchanger shell 1 is discharged from the water outlet pipe 14.

[0067] When high-temperature liquid is continuously passed into the heat exchanger shell 1, the operator turns on the drive motor 21, wherein the drive motor 21 is resistant to high temperatures and waterproof. The drive motor 21 can drive the sealing plate 2 connected to the output shaft to rotate, and then the position of the transmission port 22 on the sealing plate 2 changes, wherein the transmission port 22 corresponds to the pipe openings of different heat exchange tubes 151, thereby causing the high-temperature liquid flowing into the interior to perform heat exchange operations in different heat exchange tubes 151. Since the heat exchange tubes 151 are located at different positions of the heat exchanger shell 1, heat exchange can be performed on water in different areas, which can reduce the occurrence of reduced heat exchange efficiency due to excessive local temperature.

[0068] When the sealing plate 2 rotates, the sealing plate 2 can drive the synchronous shaft 221 to rotate, and the synchronous shaft 221 is equipped with a stirring roller 4. At this time, the stirring roller 4 can drive the stirring rod 41 to rotate, and the stirring rod 41 can surround the internal water, so that the temperature of the water body can be kept uniform, thereby improving the heat exchange efficiency.

[0069] After the stirring roller 4 rotates, the driving gear 5 on the stirring roller 4 rotates, and the driving gear 5 can drive the small driven gear 51 to rotate, and then can drive the driven gear 51 to rotate quickly, and the driven gear 51 drives the gear shaft 511 to rotate, and the gear shaft 511 drives the entire adjusting roller 52 to start rotating, and the position of the cylindrical cam groove 521 on the adjusting roller 52 changes, and then the cylindrical cam groove 521 drives the entire guide slider 522 to slide back and forth on the guide rod 523, which achieves the purpose of limiting. The connecting plate 53 and the stirring plate 531 on the side wall of the guide slider 522 can slide at this time, and then can disturb the water flow outside the heat exchange tube 151, thereby reducing the occurrence of reduced heat exchange efficiency due to excessively high local temperature of the liquid, thereby improving the heat exchange efficiency.

[0070] And when the transfer port 22 slides on the surface of the top heat exchange tube 151, as shown in FIG. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, at this time, the synchronous shaft 221 can drive the connecting column 222 to rotate, the connecting column 222 drives the positioning bracket 223 to start rotating, and the positioning bracket 223 drives the bottom combined protrusion 24 to rotate. When the protrusion 241 on the upper combined protrusion 24 and the push rod 31 are squeezed, as shown in FIG. Figure 4 and Figure 5 As shown, at this time, the sealing plug 3 driven by the push rod 31 is inserted into the inside of the heat exchange tube 151, so that the liquid inside the heat exchange tube 151 cannot flow, thereby increasing the heat exchange time and improving the heat exchange effect. At this time, the gap between the protrusions 241 on the other group of combined protrusions 24 at the bottom is in contact with the push rod 31, as shown in FIG. Figure 6 and Figure 7 As shown, under the action of the limit spring 322, the limit spring 322 drives the slide plate 321 to slide, and the slide plate 321 drives the sealing plug 3 to move, and finally the sealing plug 3 can be separated from the corresponding heat exchange tube 151, and then the outlet of the heat exchange tube 151 at the position is opened, so that the liquid can flow from the inside, thereby ensuring that the internal pressure is not too high.

[0071] Since a plurality of pairs of protrusions 241 are provided on the combined protrusion 24, the two sealing plugs 3 are moved alternately, so that the heat exchange tubes 151 can be opened and closed alternately, thereby performing heat exchange operations, making the heat exchange more sufficient, and the above operations can be performed even after the transfer port 22 moves to the next heat exchange tube 151, making the heat exchange more sufficient and improving the heat exchange efficiency.

Claims

1. A hotel energy-saving shell and tube heat exchanger, characterized in that: include: A heat exchanger shell (1), wherein a pair of partitions (15) are symmetrically mounted on the inner wall of the heat exchanger shell (1), and six heat exchange tubes (151) are connected between the pair of partitions; A sealing plate (2), the sealing plate (2) being rotatably mounted on the surface of the partition (15), the sealing plate (2) being symmetrically provided with a pair of transmission ports (22), and the positions of the transmission ports (22) corresponding to the positions of the heat exchange tubes (151), a driving motor (21) being mounted on the rotation center of the sealing plate (2), a synchronous shaft (221) being mounted on the sealing plate (2), the synchronous shaft (221) being movably penetrating the partition (15), and a positioning bracket (223) being mounted on the end of the synchronous shaft (221), two pairs of combined protrusions (24) being mounted on the inner side wall of the positioning bracket (223), the positions of the two pairs of combined protrusions (24) corresponding to the positions of the transmission ports (22), and the two pairs of combined protrusions (24) being respectively surrounded by a plurality of pairs of protrusions (241) and mounted on the positioning bracket (223); Six sealing plugs (3), each of the sealing plugs (3) is slidably inserted at the outlet position of the corresponding heat exchange tube (151), and each of the sealing plugs (3) is installed with a push rod (31), the push rod (31) on one of the sealing plugs (3) is in contact with the protrusions (241) on one group of the combined protrusions (24), and the intervals between the protrusions (241) on the other group of the combined protrusions (24) are slidably connected to the push rod (31) on another sealing plug (3), and the two groups of sealing plugs (3) are symmetrically arranged, and a limit rod (32) is slidably arranged on the side wall of the sealing plug (3), and a limit spring (322) is arranged between the limit rod (32) and the sealing plug (3); A stirring roller (4), the stirring roller (4) being mounted on a synchronous shaft (221), the stirring roller (4) being placed in a cavity formed by a pair of partitions (15) and a heat exchanger shell (1); A driving gear (5), wherein the driving gear (5) is mounted on the stirring roller (4), and three pairs of driven gears (51) are mounted on the driving gear (5), and an adjusting roller (52) is mounted at the rotation center of each pair of driven gears (51), and the adjusting roller (52) is provided with a cylindrical cam groove (521), and a connecting plate (53) is slidably arranged on the cylindrical cam groove (521), and the connecting plate (53) slides horizontally in the inner cavity of the heat exchanger shell (1), and a pair of stirring plates (531) are mounted on the connecting plate (53), and the pair of stirring plates (531) are placed on both sides of the corresponding heat exchange tube (151).

2. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: Connecting buckets (11) are installed at the ends of both sides of the heat exchanger shell (1), the connecting buckets (11) are conical, the connecting buckets (11) and the heat exchanger shell (1) are wrapped around the outside of the partition (15), a connecting flange (111) is installed at the end of the connecting bucket (11), a mounting hole is opened on the connecting flange (111), and the driving motor (21) and the positioning bracket (223) are placed in the connecting bucket (11).

3. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: A water inlet pipe (13) and a water outlet pipe (14) are installed on the heat exchanger shell (1); the water inlet pipe (13) and the water outlet pipe (14) are both connected to a cavity formed between a pair of partitions (15) and the heat exchanger shell (1); and the water inlet pipe (13) is lower than the height of the water outlet pipe (14).

4. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: A column (12) is installed at the bottom of the heat exchanger shell (1), the column (12) is in a vertical state, a base (122) is fixedly installed at the bottom of the column (12), and an anti-slip pad is installed at the bottom of the base (122), and a reinforcing rib (121) is installed on the side wall of the column (12), the bottom of the reinforcing rib (121) is connected to the upper surface of the column (12), and the reinforcing rib (121) is triangular.

5. The hotel energy-saving shell and tube heat exchanger according to claim 2, characterized in that: The output shaft of the driving motor (21) and the synchronous shaft (221) are on the same axis. A support leg (211) is installed on the bottom shell of the driving motor (21). The support leg (211) is welded and arranged on the bottom of the connecting bucket (11). A guide cover (212) is installed on the driving motor (21). The guide cover (212) is truncated cone-shaped, and a gap is left between the outer wall of the guide cover (212) and the inner wall of the connecting bucket (11).

6. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: A connecting column (222) is installed on the positioning bracket (223), the connecting column (222) is rotatably connected to the partition (15), the connecting column (222) is connected to the synchronization shaft (221), and a rolling ball (311) is installed at the end of the push rod (31), and the rolling ball (311) is rollingly connected to the inner wall of the positioning bracket (223).

7. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: The limiting rod (32) is fixedly mounted on the side wall of the partition (15); a slide plate (321) is slidably arranged on the side wall of the limiting rod (32); the side wall of the slide plate (321) is connected to the sealing plug (3); a limiting spring (322) is sleeved on the limiting rod (32); one end of the limiting spring (322) is clamped on the side wall of the partition (15), and the other end is clamped on the side wall of the slide plate (321); a limiting seat (323) is installed at the end of the limiting rod (32); the limiting seat (323) is slidably connected to an annular guide rail (23) provided on the positioning bracket (223).

8. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: A plurality of pairs of stirring rods (41) are mounted around the surface of the stirring roller (4).

9. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: The number of teeth of the driven gear (51) is smaller than the number of teeth of the driving gear (5); a gear shaft (511) is installed at the center of the driven gear (51); both ends of the gear shaft (511) are respectively rotatably connected to the partition plate (15); and the gear shaft (511) is connected to the rotation center of the adjustment roller (52).

10. The hotel energy-saving shell and tube heat exchanger according to claim 1, characterized in that: A guide slider (522) is installed on the connecting plate (53), a guide rod (523) is installed through the inside of the guide slider (522), synchronization plates (524) are installed at both ends of the guide rod (523), a fixing seat (525) is installed at the corner of the synchronization plate (524), the fixing seat (525) is welded to the side wall of the partition (15), and the guide slider (522) is slidably connected to the cylindrical cam groove (521).

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