Vertical heat exchanger

Abstract

The invention belongs to the technical field of heat exchange, and particularly relates to a vertical heat exchanger which comprises a heat exchanger body, two tube plates are symmetrically and fixedly connected to the interior of the heat exchanger body, and the heat exchanger body is divided into a heat exchange cavity located in the middle and flow guide cavities located on the two sides by the two tube plates. A heat exchange assembly is arranged in each flow guide cavity, and the side walls, located on the two sides, of the flow guide cavities communicate with a hot end input pipe and a hot end output pipe correspondingly. By arranging the adjusting mechanism, when the temperature difference between the hot fluid and the cold fluid is large, the conveying rate of the hot fluid and the cold fluid is increased, so that the two kinds of fluid impact on the thermal boundary layer at the higher flow speed, and when the temperature difference between the hot fluid and the cold fluid is small, the conveying rate of the hot fluid and the cold fluid is reduced; the staying time of the two fluids in the heat exchanger is prolonged, so that the defect that the heat transfer rate is low due to small temperature difference is overcome, unnecessary energy consumption is reduced, and the purposes of saving energy and improving efficiency are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange, and in particular relates to a vertical heat exchanger. Background Art

[0002] A vertical heat exchanger is a device that exchanges heat based on temperature differences. It usually has a vertically placed structure. In this structure, hot fluid and cold fluid usually exchange heat through different channels (tube side and shell side). During the use of a vertical heat exchanger, the hot fluid and cold fluid respectively pass through the two main flow channels of the heat exchanger (tube side and shell side). Under normal circumstances, the hot fluid flows through the tube side, and the cold fluid flows in the shell side. The heat of the hot fluid is transferred to the cold fluid through the tube wall, thereby achieving heat exchange.

[0003] For example, a vertical heat exchanger disclosed in China Publication No. CN111637769A usually has the following technical problems during use:

[0004] Since the heat transfer efficiency of heat will increase with the increase of temperature difference, the efficiency of heat exchange of the heat exchanger will be affected by the temperature difference between the two fluids. However, in the prior art, the delivery speed of the hot fluid and the cold fluid is usually fixed and cannot be adjusted according to the temperature difference between the heat exchange, resulting in the following effects:

[0005] When the temperature difference between the two fluids is large, the heat exchange efficiency of the heat exchanger is relatively high. The temperature of the hot fluid that first enters the heat exchanger will drop rapidly as the heat is transferred, and the thermal boundary layer (i.e., the temperature difference area) between the fluid and the heat exchange surface (such as the tube wall) will become thicker, resulting in a weakened heat exchange effect for the subsequent fluid that enters the heat exchanger for heat exchange.

[0006] When the temperature difference between the two fluids is small, the hot fluid has a weaker ability to release heat, while the cold fluid has a relatively poor ability to absorb heat, resulting in a relatively low heat exchange efficiency of the heat exchanger, which is insufficient to meet the heat exchange needs and cannot efficiently transfer heat from the hot fluid to the cold fluid, thereby reducing the heat exchange efficiency and causing energy waste.

[0007] Therefore, there is an urgent need for a vertical heat exchanger that can adaptively adjust the delivery speed of hot fluid and cold fluid according to the temperature difference. Summary of the invention

[0008] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide a vertical heat exchanger that can increase the conveying rate of hot fluid and cold fluid when the temperature difference between the hot fluid and the cold fluid is large, so that the two fluids impact on the thermal boundary layer at a higher flow rate, and reduce the conveying rate of hot fluid and cold fluid when the temperature difference between the hot fluid and the cold fluid is small, so as to compensate for the low heat transfer rate caused by the small temperature difference.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A vertical heat exchanger, comprising:

[0011] A heat exchanger body, wherein two tube sheets are symmetrically fixedly connected inside the heat exchanger body, and the heat exchanger body is divided into a heat exchange cavity in the middle and a flow guide cavity at both sides by the two tube sheets, and a heat exchange component is arranged in the flow guide cavity, and the side walls of the flow guide cavity at both sides are respectively connected with a hot end input pipe and a hot end output pipe, and the side wall of the heat exchange cavity at the middle position is connected with a cold end input pipe and a cold end output pipe, and the hot end input pipe is arranged in parallel with the cold end input pipe;

[0012] A regulating mechanism is used to regulate the flow rate of the hot fluid and the cold fluid according to the temperature difference between the two fluids, the regulating mechanism includes a heat insulation plate fixedly connected between the hot end input pipe and the cold end input pipe, a first heat conducting rod for detecting the temperature difference between the hot fluid and the cold fluid is provided inside the heat insulation plate, two ends of the first heat conducting rod respectively extend to the hot end input pipe and the cold end input pipe, and a temperature control component controlled by the temperature of the first heat conducting rod is provided inside the heat insulation plate.

[0013] Preferably, the ends of the hot-end input pipe and the cold-end input pipe away from the heat exchanger body are both connected to a pump body, and a plurality of guide plates which are linearly staggered and distributed are fixedly connected to the heat exchanger body.

[0014] Preferably, the heat exchange assembly comprises a plurality of heat exchange tubes distributed in a circumferential array and airtightly rotatably connected between two tube sheets, and both ends of the heat exchange tubes are respectively connected to the guide cavities on both sides.

[0015] Preferably, the temperature control component includes a liquid storage chamber opened inside the insulation board, a second heat-conducting rod extending into the liquid storage chamber is fixedly connected to the first heat-conducting rod, a control chamber connected to the liquid storage chamber is opened inside the insulation board, a piston plate is airtightly slidably connected inside the control chamber, a first spring is provided between the piston plate and the inner side wall of the control chamber, an expansion space is formed between the space near one side of the liquid storage chamber in the control chamber and the inside of the liquid storage chamber, the expansion space is filled with kerosene having the property of thermal expansion and thermal contraction, a sliding rheostat controlled by the piston plate is also provided in the control chamber, and the two pump bodies are electrically connected to the power supply device through the sliding rheostats.

[0016] Preferably, the sliding rheostat comprises a resistance rod fixedly connected to the inner side wall of the control chamber, a sliding plate is slidably connected to the resistance rod, and a push rod is fixedly connected between the sliding plate and the upper end of the piston plate.

[0017] Preferably, each of the heat exchange tubes is provided with a cleaning mechanism for automatically cleaning the inner wall of the heat exchange tube during the heat exchange process, the cleaning mechanism comprises a reciprocating screw rotatably connected to the inside of the heat exchange tube, the end of the reciprocating screw close to the hot end input tube is fixedly connected to a plurality of spiral blades distributed in a circumferential array, and each of the spiral blades is fixedly connected to the inner wall of the heat exchange tube, a movable sleeve is threadedly connected to the reciprocating screw, an arc-shaped cleaning plate that fits the inner wall of the heat exchange tube is installed on the movable sleeve through a connecting rod, a limiting rod is fixedly connected to the inner wall of the guide cavity close to the hot end output tube, the limiting rod extends to the interior of the heat exchange tube and is slidably connected to the movable sleeve.

[0018] Preferably, an annular groove is provided on the outer wall of the movable sleeve, the connecting rod is slidably connected to the inner wall of the annular groove along a circular trajectory, a spiral guide groove is provided on the inner wall of the heat exchange tube, a guide block is fixedly connected to the arc cleaning plate, and the guide block is slidably connected to the inner wall of the spiral guide groove.

[0019] Preferably, two groups of symmetrically arranged spoiler mechanisms are provided on the inner wall of the heat exchange chamber, which are used to have a spoiler effect on the hot fluid during the heat exchange process. The spoiler mechanism includes a telescopic rod fixedly connected to the inner wall of the heat exchange chamber, the telescopic end of the telescopic rod is fixedly connected to a transmission block, racks are provided on both sides of the transmission block, two support plates are fixedly connected to the positions on both sides of the transmission block in the heat exchange chamber, a rotating rod is rotatably connected between the two support plates, a gear meshing with the racks at corresponding positions is fixedly connected to the rotating rod, both ends of the rotating rod are fixedly connected to fixed rods, and the ends of the two fixed rods are fixedly connected to spoiler blocks, and a magnetic drive component is provided on the outer wall of the heat exchange tube, which is used to drive the spoiler blocks on both sides of the transmission block to swing back and forth.

[0020] Preferably, the magnetic drive assembly includes a first magnet fixedly connected to the outer wall of the heat exchange tube, the transmission block is fixedly connected to one end of the heat exchange tube near the corresponding position with a second magnet having the same pole as the first magnet and repelling each other, and a second spring is provided between the transmission block and the inner wall of the heat exchange chamber.

[0021] Compared with the existing technology, the advantages of this vertical heat exchanger are:

[0022] 1. The present invention provides an adjusting mechanism, so that the hot fluid and the cold fluid can heat and cool both ends of the first heat-conducting rod at the same time before heat exchange, and the temperature difference between the hot fluid and the cold fluid will be presented on the first heat-conducting rod. When the temperature difference between the hot fluid and the cold fluid is large, the kerosene in the liquid storage chamber is in a state of relatively high temperature, and the sliding vane slides to the position of the upper half of the resistance rod, so that the power of the pump body is large, and the conveying rate of the hot fluid and the cold fluid is increased, so that the two fluids impact on the thermal boundary layer at a larger flow rate, thereby ensuring the subsequent heat exchange effect. When the temperature difference between the hot fluid and the cold fluid is small, the kerosene in the liquid storage chamber is in a state of relatively low temperature, and the sliding vane slides to the position of the lower half of the resistance rod, so that the power of the pump body is small, and the conveying rate of the hot fluid and the cold fluid is reduced, so that the residence time of the two fluids in the heat exchanger is increased, so as to make up for the defect of low heat transfer rate caused by the small temperature difference, and at the same time reduce unnecessary energy consumption, so as to achieve the purpose of energy saving and efficiency improvement.

[0023] 2. The present invention provides a cleaning mechanism. During the heat exchange process, the pump body transports the hot fluid to the guide cavity. The impact force generated by the flow of the hot fluid drives the multiple spiral blades to rotate, further driving the heat exchange tube and the reciprocating screw inside it to rotate, driving the movable sleeve to perform reciprocating horizontal displacement along the reciprocating screw, so that the movable sleeve can drive the arc-shaped cleaning plate to perform reciprocating horizontal displacement, and reciprocatingly scrape off the dirt attached to the inner wall of the heat exchange tube, thereby avoiding performance degradation or failure of the heat exchanger.

[0024] 3. The present invention provides a spiral guide groove and a guide block. During the process of the movable sleeve performing reciprocating horizontal displacement along the reciprocating screw, the arc cleaning plate can rotate under the action of the connecting rod and the annular groove. Therefore, under the guiding action of the spiral guide groove on the guide block, the arc cleaning plate can perform spiral cleaning on the inner wall of the heat exchange tube, and have an oblique scraping effect during the scraping process, which not only improves the cleaning effect on the inner wall of the heat exchange tube, but also the spirally moving connecting rod can stir the hot fluid in the heat exchange tube, thereby improving the heat exchange effect.

[0025] 4. The present invention provides a spoiler mechanism, which can drive the first magnet to periodically oppose the second magnet during the rotation of the heat exchange tube, and drive the rotating rod and the spoiler block to swing periodically under the action of the magnetic repulsion force and the elastic force of the second spring, thereby having a spoiler effect on the cold fluid during the heat exchange process, increasing the turbulence intensity of the cold fluid, increasing the heat exchange between the cold fluid and the wall of the heat exchange tube, promoting heat transfer, and further improving the heat exchange effect of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2It is a cross-sectional structural schematic diagram of the present invention;

[0028] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 is a partial cross-sectional view of the heat exchange tube in the present invention;

[0030] Figure 5 It is a partial structural schematic diagram of the spoiler mechanism in the present invention.

[0031] In the figure: 1, heat exchanger body; 11, tube sheet; 12, heat exchange cavity; 13, flow guide cavity; 14, heat exchange assembly; 141, heat exchange tube; 15, hot end input pipe; 16, cold end input pipe; 2, adjustment mechanism; 21, heat insulation board; 22, first heat conduction rod; 23, temperature control assembly; 231, liquid storage cavity; 232, second heat conduction rod; 233, control cavity; 234, piston plate; 235, first spring; 236, resistance rod; 237, slide plate; 238, push rod Rod; 3, cleaning mechanism; 31, reciprocating screw; 32, spiral blade; 33, movable sleeve; 34, arc cleaning plate; 35, limit rod; 4, annular groove; 5, spiral guide groove; 6, spoiler mechanism; 61, telescopic rod; 62, transmission block; 63, rack; 64, support plate; 65, rotating rod; 66, gear; 67, fixed rod; 68, spoiler block; 69, magnetic drive assembly; 691, first magnet; 692, second magnet; 693, second spring. DETAILED DESCRIPTION

[0032] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0033] Example: Refer to Figures 1 to 5 , a vertical heat exchanger, comprising:

[0034] A heat exchanger body 1, wherein two tube sheets 11 are symmetrically fixedly connected inside the heat exchanger body 1, and the heat exchanger body 1 is divided into a heat exchange chamber 12 in the middle and flow guide chambers 13 at both sides by the two tube sheets 11, and a heat exchange assembly 14 is arranged in the flow guide chamber 13, and the heat exchange assembly 14 includes a plurality of heat exchange tubes 141 distributed in a circumferential array and connected between the two tube sheets 11 in an airtight rotation manner, and both ends of the heat exchange tube 141 are respectively connected to the flow guide chambers 13 at both sides, and both ends of the heat exchange tube 141 are airtightly connected to the two tube sheets 11 in an airtight rotation manner;

[0035] Specifically, the side walls of the guide chamber 13 at both sides are connected with a hot end input pipe 15 and a hot end output pipe respectively, and the side wall of the heat exchange chamber 12 at the middle position is connected with a cold end input pipe 16 and a cold end output pipe, and the hot end input pipe 15 is distributed in parallel with the cold end input pipe 16, and the other ends of the hot end input pipe 15 and the cold end input pipe 16 are connected to the pump body, and a plurality of linearly staggered guide plates are fixedly connected in the heat exchanger body 1.

[0036] The regulating mechanism 2 is used to regulate the flow rate of the hot fluid and the cold fluid according to the temperature difference between the two fluids. The regulating mechanism 2 includes a heat insulation plate 21 fixedly connected between the hot end input pipe 15 and the cold end input pipe 16. A first heat conducting rod 22 for detecting the temperature difference between the hot fluid and the cold fluid is provided inside the heat insulation plate 21. Both ends of the first heat conducting rod 22 extend to the hot end input pipe 15 and the cold end input pipe 16 respectively. A temperature control component 23 controlled by the temperature of the first heat conducting rod 22 is provided inside the heat insulation plate 21, which is used to regulate the power of the two pump bodies according to the temperature of the first heat conducting rod 22.

[0037] Specifically, the first heat-conducting rod 22 is made of copper and has a high thermal conductivity. Therefore, it can quickly transfer the heat of the hot fluid in the hot end input pipe 15 to the first heat-conducting rod 22, and quickly transfer the heat to the cold fluid in the cold end input pipe 16, further reflecting the temperature difference between the hot fluid and the cold fluid in the middle position of the first heat-conducting rod 22.

[0038] The temperature control assembly 23 includes a liquid storage chamber 231 opened inside the heat insulation board 21, a second heat conduction rod 232 extending into the liquid storage chamber 231 is fixedly connected to the first heat conduction rod 22, a control chamber 233 connected to the liquid storage chamber 231 is opened inside the heat insulation board 21, a piston plate 234 is airtightly slidably connected inside the control chamber 233, a first spring 235 is provided between the piston plate 234 and the inner wall of the control chamber 233, and a space near the liquid storage chamber 231 in the control chamber 233 and An expansion space is formed inside the liquid storage chamber 231, and the expansion space is filled with kerosene with the property of thermal expansion and contraction. A sliding rheostat controlled by the piston plate 234 is also provided in the control chamber 233, and the two pump bodies are electrically connected to the power supply device through the sliding rheostat. The sliding rheostat includes a resistance rod 236 fixedly connected to the inner wall of the control chamber 233, a sliding plate 237 is slidably connected to the resistance rod 236, and a push rod 238 is fixedly connected between the sliding plate 237 and the upper end of the piston plate 234.

[0039] In view of the fact that the prior art cannot adjust according to the temperature difference between the heat exchange, when the temperature difference between the two fluids is large, the thermal boundary layer (i.e., the temperature difference area) between the fluid and the heat exchange surface (such as the tube wall) will become thicker. The thermal boundary layer refers to the layer of fluid that contacts the surface of the heat exchange tube 141. Due to the temperature difference, heat needs to be transferred to the surface of the heat exchange tube 141 through this layer of fluid, resulting in a weakened heat exchange effect of the fluid that subsequently enters the heat exchanger for heat exchange. When the temperature difference between the two fluids is small, the heat exchange efficiency of the heat exchanger is low and is insufficient to meet the heat exchange needs, thereby reducing the heat exchange efficiency and causing energy waste. In the present invention, by setting an adjustment mechanism 2, during the heat exchange process, the hot fluid and the cold fluid can heat and cool the two ends of the first heat conducting rod 22 before the heat exchange, and the temperature difference between the hot fluid and the cold fluid is presented through the first heat conducting rod 22:

[0040] It is to be noted in advance that when the temperature difference between the hot fluid and the cold fluid is large, the hot fluid transfers heat to the first heat-conducting rod 22, and the cold fluid has a relatively weak ability to absorb heat, and cannot quickly absorb the heat conducted to the first heat-conducting rod 22 by the hot fluid, so that the temperature at the middle position of the first heat-conducting rod 22 is relatively high. When the temperature difference between the hot fluid and the cold fluid is small, the cold fluid has a relatively strong ability to absorb heat, and is sufficient to quickly absorb the heat conducted to the first heat-conducting rod 22 by the hot fluid, so that the temperature at the middle position of the first heat-conducting rod 22 is relatively low. Here, the middle position of the first heat-conducting rod 22 is used as the position where the temperature difference between the hot fluid and the cold fluid is presented, and other positions of the first heat-conducting rod 22 can also be used as the position where the temperature difference is presented. It is only necessary to move the second heat-conducting rod 22 232 is set at other positions of the first heat-conducting rod 22. For example, the second heat-conducting rod 232 is set at a position of the first heat-conducting rod 22 near the hot fluid inlet. At this time, the measured temperature can quickly reflect the temperature change of the hot fluid, but it may be difficult to accurately reflect the stable value of the temperature difference between the hot and cold fluids due to the large temperature fluctuation of the hot fluid. The second heat-conducting rod 232 can also be set at a position of the first heat-conducting rod 22 near the cold fluid inlet. At this time, the measured temperature is closer to the stable state after the cold fluid absorbs heat, but it may lag behind the rapid change of the hot fluid temperature, resulting in a delay in the temperature difference measurement. Therefore, for heat exchange systems under different working conditions, the position of the second heat-conducting rod 232 can be changed to improve its adaptability to the heat exchange system, which is not limited here;

[0041] When the temperature difference between the hot fluid and the cold fluid is large, the temperature at the middle position of the first heat-conducting rod 22 is relatively high, so that the temperature at the middle position of the first heat-conducting rod 22 can be transferred to the kerosene in the liquid storage chamber 231 through the second heat-conducting rod 232, so that the kerosene in the liquid storage chamber 231 is in a relatively high temperature state, so that the kerosene can expand and push the piston plate 234 to slide upward in the control chamber 233, and further drive the slide 237 to slide to the position of the upper part of the resistance rod 236 through the push rod 238, so that the resistance value of the circuit where the pump body is located is relatively small, the current is large, and the power of the pump body is further increased, thereby improving the delivery rate of the hot fluid and the cold fluid, and increasing the flow rate of the two fluids in the heat exchange process, so that the two fluids impact on the thermal boundary layer at a higher flow rate, ensuring the subsequent heat exchange effect;

[0042] When the temperature difference between the hot fluid and the cold fluid is small, the temperature at the middle position of the first heat-conducting rod 22 is relatively low, so that the kerosene in the liquid storage chamber 231 is in a relatively low temperature state, allowing the kerosene to shrink and slide downward under the elastic force of the first spring 235, so that the slide 237 slides to the position of the lower half of the resistance rod 236, so that the resistance value of the circuit where the pump body is located is relatively large, the power of the pump body is small, and the delivery rate of the hot fluid and the cold fluid is reduced, so that the residence time of the two fluids in the heat exchanger is increased, and there is more time for heat exchange, so as to make up for the defect of low heat transfer rate caused by the small temperature difference, and at the same time reduce unnecessary energy consumption, so as to achieve the purpose of energy saving and efficiency improvement.

[0043] A cleaning mechanism 3 is provided in each heat exchange tube 141 for automatically cleaning the inner wall of the heat exchange tube 141 during the heat exchange process. The cleaning mechanism 3 includes a reciprocating screw 31 rotatably connected to the inside of the heat exchange tube 141. The end of the reciprocating screw 31 close to the hot end input tube 15 is fixedly connected to a plurality of spiral blades 32 distributed in a circumferential array, and each spiral blade 32 is fixedly connected to the inner wall of the heat exchange tube 141. A movable sleeve 33 is threadedly connected to the reciprocating screw 31. An arc-shaped cleaning plate 34 that fits the inner wall of the heat exchange tube 141 is installed on the movable sleeve 33 through a connecting rod. A limiting rod 35 is fixedly connected to the inner wall of the guide cavity 13 close to the hot end output tube. The limiting rod 35 extends to the interior of the heat exchange tube 141 and is slidably connected to the movable sleeve 33.

[0044] Considering that during the heat exchange process, the decrease in the temperature of the hot fluid may cause some dissolved substances to precipitate from the fluid and adhere to the inner wall of the heat exchange tube 141. For example, minerals such as calcium salts and magnesium salts in water have high solubility at high temperatures, and will crystallize after cooling and deposit on the inner wall of the heat exchange tube 141 to form scale. In the present invention, by setting a cleaning mechanism 3, during the heat exchange process, the pump body transports the hot fluid to the guide cavity 13. Since the diameter of the heat exchange tube 141 is often set relatively small, the flow rate of the hot fluid suddenly increases during the process of entering the heat exchange tube 141, thereby generating a scale when the hot fluid flows. The impact force drives the multiple spiral blades 32 to rotate, and further drives the heat exchange tube 141 and the reciprocating screw 31 inside to rotate. Due to the limiting effect of the limiting rod 35 on the movable sleeve 33, the movable sleeve 33 will be driven to reciprocate horizontally along the reciprocating screw 31 during the rotation of the reciprocating screw 31, so that the movable sleeve 33 can drive the arc cleaning plate 34 to reciprocate horizontally, and reciprocately scrape the dirt attached to the inner wall of the heat exchange tube 141 to avoid the scale generated by the hot fluid during the heat exchange process from adhering to the inner wall of the heat exchange tube 141, so as to avoid performance degradation or failure of the heat exchanger.

[0045] It is worth mentioning that an annular groove 4 is provided on the outer wall of the movable sleeve 33, and the connecting rod is slidably connected to the inner wall of the annular groove 4 along a circular trajectory. A spiral guide groove 5 is provided on the inner wall of the heat exchange tube 141, and a guide block is fixedly connected to the arc cleaning plate 34, and the guide block is slidably connected to the inner wall of the spiral guide groove 5.

[0046] By setting the spiral guide groove 5 and the guide block, in the process of the movable sleeve 33 performing reciprocating horizontal displacement along the reciprocating screw 31, since the arc cleaning plate 34 can rotate under the action of the connecting rod and the annular groove 4, the arc cleaning plate 34 will perform spiral cleaning on the inner wall of the heat exchange tube 141 under the guiding action of the spiral guide groove 5 on the guide block, and have an oblique scraping effect during the scraping process, which not only improves the cleaning effect of the inner wall of the heat exchange tube, but also the spirally moving connecting rod can stir the hot fluid in the heat exchange tube 141, thereby improving the heat exchange effect.

[0047] In addition, since the sliding of the guide block in the spiral guide groove 5 can scrape off the dirt inside it, and the movable sleeve 33 will clean the thread groove on its surface when rotating along the reciprocating screw 31, the influence of dirt accumulation in the design process of this mechanism is not considered.

[0048] Two groups of symmetrically arranged spoiler mechanisms 6 are provided on the inner wall of the heat exchange chamber 12, which are used to have a spoiler effect on the hot fluid during the heat exchange process. The spoiler mechanism 6 includes a telescopic rod 61 fixedly connected to the inner wall of the heat exchange chamber 12, and the telescopic end of the telescopic rod 61 is fixedly connected to a transmission block 62. Racks 63 are provided on both sides of the transmission block 62. Two support plates 64 are fixedly connected to the positions on both sides of the transmission block 62 in the heat exchange chamber 12, and a rotating rod 65 is rotatably connected between the two support plates 64. A gear 66 meshing with the rack 63 at the corresponding position is fixedly connected to the rotating rod 65, and fixed rods 67 are fixedly connected to both ends of the rotating rod 65. Spoiler blocks 68 are fixedly connected to the ends of the two fixed rods 67. A magnetic drive component 69 is provided on the outer wall of the heat exchange tube 141, which is used to drive the spoiler blocks 68 on both sides of the transmission block 62 to swing back and forth.

[0049] Specifically, the magnetic drive assembly 69 includes a first magnet 691 fixedly connected to the outer wall of the heat exchange tube 141, and the transmission block 62 is fixedly connected to one end of the heat exchange tube 141 near the corresponding position to a second magnet 692 with the same polarity as the first magnet 691 and repelling each other, and a second spring 693 is provided between the transmission block 62 and the inner wall of the heat exchange chamber 12.

[0050] It should also be noted that the present invention, by providing a spoiler mechanism 6, can drive the first magnet 691 to periodically oppose the second magnet 692 during the rotation of the heat exchange tube, so that the second magnet 692 is periodically subjected to the magnetic repulsion force, so that the transmission block 62 can be periodically displaced under the action of the magnetic repulsion force, and when the first magnet 691 is no longer opposite to the second magnet 692, it is reversely displaced and reset under the elastic force of the second spring 693, thereby driving the rotating rod 65 and the spoiler block 68 to swing periodically through the rack 63 and the gear 66, which has a spoiler effect on the cold fluid during the heat exchange process, increases the turbulence intensity of the cold fluid, increases the heat exchange between the cold fluid and the wall of the heat exchange tube 141, promotes heat transfer, and further improves the heat exchange effect of the heat exchanger.

[0051] The present invention can be explained by the following operation mode:

[0052] During heat exchange, one of the pump bodies transports the hot fluid through the hot end input pipe 15 to the guide cavity 13 on one side, and further enters the multiple heat exchange tubes 141, and then flows into the guide cavity 13 on the other side, and is discharged through the hot end output pipe. At the same time, the other pump body transports the cold fluid through the cold end input pipe 16 to the inside of the heat exchange cavity 12, and after being guided by multiple guide plates, it is discharged through the cold end output pipe. The hot fluid and the cold fluid exchange heat through the wall of the heat exchange tube 141 in the heat exchange cavity 12;

[0053] In the heat exchange process, the hot fluid and the cold fluid can heat and cool the two ends of the first heat-conducting rod 22 before heat exchange, and the temperature difference between the hot fluid and the cold fluid is presented through the first heat-conducting rod 22. When the temperature difference between the hot fluid and the cold fluid is large, the power of the pump body is relatively large, and the transportation rate of the hot fluid and the cold fluid is increased. When the temperature difference between the hot fluid and the cold fluid is small, the power of the pump body is relatively small, and the transportation rate of the hot fluid and the cold fluid is reduced, thereby reducing the influence of the low heat transfer rate caused by the thermal boundary layer and the small temperature difference on the heat exchange effect;

[0054] In addition, the impact force generated by the flow of hot fluid drives the multiple spiral blades 32 to rotate, further driving the heat exchange tube 141 and the reciprocating screw 31 inside it to rotate, so that the movable sleeve 33 can drive the arc cleaning plate 34 to reciprocate horizontally. At the same time, under the guiding action of the spiral guide groove 5 on the guide block, the arc cleaning plate 34 performs spiral cleaning on the inner wall of the heat exchange tube 141, and has an oblique scraping effect during the scraping process, thereby preventing the scale generated by the hot fluid during the heat exchange process from adhering to the inner wall of the heat exchange tube 141.

[0055] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical heat exchanger, characterized in that: include: A heat exchanger body (1), wherein two tube sheets (11) are symmetrically fixedly connected inside the heat exchanger body (1), and the heat exchanger body (1) is divided by the two tube sheets (11) into a heat exchange chamber (12) at a middle position and flow guide chambers (13) at two side positions, wherein a heat exchange assembly (14) is arranged in the flow guide chamber (13), and the side walls of the flow guide chambers (13) at two side positions are respectively connected to a hot end input pipe (15) and a hot end output pipe, and the side wall of the heat exchange chamber (12) at a middle position is connected to a cold end input pipe (16) and a cold end output pipe, and the hot end input pipe (15) and the cold end input pipe (16) are arranged in parallel; The heat exchange assembly (14) comprises a plurality of heat exchange tubes (141) distributed in a circumferential array and connected in an airtight rotational manner between two tube sheets (11); A regulating mechanism (2) for regulating the flow rates of the hot fluid and the cold fluid according to the temperature difference between the two fluids, the regulating mechanism (2) comprising a heat insulating plate (21) fixedly connected between the hot end input pipe (15) and the cold end input pipe (16), a first heat conducting rod (22) for detecting the temperature difference between the hot fluid and the cold fluid is provided inside the heat insulating plate (21), two ends of the first heat conducting rod (22) respectively extend into the hot end input pipe (15) and the cold end input pipe (16), and a temperature control component (23) controlled by the temperature of the first heat conducting rod (22) is provided inside the heat insulating plate (21); A cleaning mechanism (3) is used to automatically clean the inner wall of the heat exchange tube (141) during the heat exchange process; The flow disturbance mechanism (6) is located on the inner wall of the heat exchange chamber (12) and is symmetrically arranged in two groups, and is used to have a flow disturbance effect on the hot fluid during the heat exchange process.

2. The vertical heat exchanger according to claim 1, characterized in that: The ends of the hot-end input pipe (15) and the cold-end input pipe (16) away from the heat exchanger body (1) are both connected to a pump body, and a plurality of guide plates which are linearly staggered and distributed are fixedly connected inside the heat exchanger body (1).

3. The vertical heat exchanger according to claim 2, characterized in that: Both ends of the heat exchange tube (141) are respectively connected to the flow guide cavities (13) on both sides, and both ends of the heat exchange tube (141) are airtightly rotatably connected to the two tube sheets (11).

4. The vertical heat exchanger according to claim 2, characterized in that: The temperature control component (23) comprises a liquid storage chamber (231) provided inside the heat insulation plate (21); a second heat conduction rod (232) extending into the liquid storage chamber (231) is fixedly connected to the first heat conduction rod (22); a control chamber (233) communicating with the liquid storage chamber (231) is provided inside the heat insulation plate (21); a piston plate (234) is airtightly slidably connected inside the control chamber (233); a first spring (235) is provided between the piston plate (234) and the inner wall of the control chamber (233); an expansion space is formed between the space near one side of the liquid storage chamber (231) in the control chamber (233) and the inside of the liquid storage chamber (231); the expansion space is filled with kerosene having the property of thermal expansion and thermal contraction; a sliding rheostat controlled by the piston plate (234) is also provided inside the control chamber (233); and the two pump bodies are electrically connected to a power supply device via the sliding rheostat.

5. The vertical heat exchanger according to claim 4, characterized in that: The sliding rheostat comprises a resistance rod (236) fixedly connected to the inner wall of the control chamber (233), a sliding plate (237) being slidably connected to the resistance rod (236), and a push rod (238) being fixedly connected between the sliding plate (237) and the upper end of the piston plate (234).

6. The vertical heat exchanger according to claim 3, characterized in that: The cleaning mechanism (3) comprises a reciprocating screw (31) rotatably connected to the interior of the heat exchange tube (141); a plurality of spiral blades (32) distributed in a circumferential array are fixedly connected to one end of the reciprocating screw (31) close to the hot end input tube (15), and each of the spiral blades (32) is fixedly connected to the inner wall of the heat exchange tube (141); a movable sleeve (33) is threadedly connected to the reciprocating screw (31); an arc-shaped cleaning plate (34) that fits the inner wall of the heat exchange tube (141) is installed on the movable sleeve (33) through a connecting rod; a limiting rod (35) is fixedly connected to the inner wall of the guide cavity (13) close to the hot end output tube; the limiting rod (35) extends to the interior of the heat exchange tube (141) and is slidably connected to the movable sleeve (33).

7. The vertical heat exchanger according to claim 6, characterized in that: The outer wall of the movable sleeve (33) is provided with an annular groove (4), the connecting rod is slidably connected to the inner wall of the annular groove (4) along a circular trajectory, the inner wall of the heat exchange tube (141) is provided with a spiral guide groove (5), and a guide block is fixedly connected to the arc cleaning plate (34), and the guide block is slidably connected to the inner wall of the spiral guide groove (5).

8. The vertical heat exchanger according to claim 6, characterized in that: The spoiler mechanism (6) comprises a telescopic rod (61) fixedly connected to the inner wall of the heat exchange chamber (12); the telescopic end of the telescopic rod (61) is fixedly connected to a transmission block (62); racks (63) are provided on both sides of the transmission block (62); two support plates (64) are fixedly connected to the positions on both sides of the transmission block (62) in the heat exchange chamber (12); a rotating rod (65) is rotatably connected between the two support plates (64); a gear (66) meshing with the racks (63) at corresponding positions is fixedly connected to the rotating rod (65); fixed rods (67) are fixedly connected to both ends of the rotating rod (65); spoiler blocks (68) are fixedly connected to the ends of the two fixed rods (67); and a magnetic drive assembly (69) is provided on the outer wall of the heat exchange tube (141) for driving the spoiler blocks (68) on both sides of the transmission block (62) to swing back and forth.

9. The vertical heat exchanger according to claim 8, characterized in that: The magnetic drive component (69) comprises a first magnet (691) fixedly connected to the outer wall of the heat exchange tube (141); one end of the transmission block (62) close to the corresponding position of the heat exchange tube (141) is fixedly connected to a second magnet (692) having the same polarity as the first magnet (691) and repelling each other; and a second spring (693) is provided between the transmission block (62) and the inner wall of the heat exchange chamber (12).

Images