Heat exchanger with multi-stage cooling function

Abstract

The utility model provides a heat exchanger with multistage cooling, which comprises a main body structure and a cooling structure fixed on one side of the main body structure, the main body structure comprises a shell and a cleaning piece, the cleaning piece is fixed on the end part of the shell, a support frame is fixed on one side of the shell, a liquid outlet pipe is fixed on one side of the shell, and the liquid outlet pipe is fixed on the other side of the shell. A first flange is fixed to one side of the shell, the cooling structure comprises a flow guide part and a main cooling part, the main cooling part is fixed to one side of the flow guide part, the flow guide part comprises a conversion pipe, a second flange is fixed to one side of the conversion pipe, the second flange is fixed to one side of the first flange through a bolt, and a third flange is fixed to one side of the conversion pipe. According to the utility model, the hot body can be primarily cooled by limiting and cooling the hot body in the early stage, and then the hot body is secondarily cooled by the cooling pipe II, so that an ideal cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and in particular to a heat exchanger with multi-stage temperature reduction. Background Art

[0002] U-type heat exchanger is a type of shell and tube heat exchanger. The working principle of the heat exchanger is to transfer heat from the high temperature end to the low temperature section. Each tube in the U-tube heat exchanger is bent into a U shape, and the two ends of the tube are installed on both sides of the same fixed tube sheet. The head is divided into two chambers by a partition, which has nothing to do with other tubes and the shell. It is used even when the temperature difference between the shell and the tube is large. In actual production, U-tube heat exchangers are often used for circulating water cooling high-temperature gases. After the heat exchanger tubes are corroded or leaked, only the core can be replaced.

[0003] After searching, a Chinese patent with announcement number CN 219693939 U discloses a heat exchanger with multi-stage cooling, including an end connecting shell, a cleaning component, a heat exchanger component, a liquid inlet cavity and a heat exchange shell, one end of the heat exchange shell is fixed with the end connecting shell, one end of the inner end of the end connecting shell is provided with a heat exchanger component, a U-shaped double-sided enhanced heat exchange tube of the heat exchanger component is located inside the heat exchange shell, one side of the heat exchanger component is provided with a pair of end connecting shells to divide the inner part into a feed cavity and a discharge cavity, the feed cavity and the discharge cavity are respectively provided with a second liquid inlet column and a second liquid outlet column, the interior of the heat exchange shell is provided with a cleaning component, the lower surface of the heat exchange shell is fixed with a liquid inlet cavity, and the heat exchange shell is evenly provided with liquid inlet through holes corresponding to the liquid inlet cavity, and the upper end of the heat exchange shell is fixed with a first liquid outlet column, the double-sided enhanced heat transfer heat exchanger has a simple structure, simple operation, more convenient installation, and can realize internal cleaning when the machine is disassembled, which provides convenience for people.

[0004] At present, the existing double-sided enhanced heat transfer heat exchanger, although easy to clean the inside, cannot achieve multi-stage cooling, resulting in unsatisfactory cooling effect. Utility Model Content

[0005] The utility model aims to provide a heat exchanger with multi-stage cooling. Through two cooling methods, the heat body can be cooled once in the first and second conduits due to flow control, and then cooled in a large range through the second cooling tube, thereby achieving an ideal cooling effect.

[0006] The utility model adopts the following technical scheme: a heat exchanger with multi-stage cooling, comprising a main structure and a cooling structure fixed on one side of the main structure, the main structure comprising a shell and a cleaning piece, the cleaning piece being fixed to the end of the shell, a support frame being fixed to one side of the shell, a liquid outlet pipe being fixed to one side of the shell, a flange one being fixed to one side of the shell, the cooling structure comprising a flow guide and a main cooling piece, the main cooling piece being fixed to one side of the flow guide, the flow guide comprising a conversion tube, a flange two being fixed to one side of the conversion tube, the flange two being bolted to one side of the flange one, a flange three being fixed to one side of the conversion tube, a liquid inlet pipe being fixed to one side of the conversion tube, a cooling tube one being fixed inside the conversion tube, a conduit one being fixed to the end of the conversion tube, a conduit one being bolted to one side of the conduit one being connected to the conduit two, and liquid outlet holes being respectively opened on one side of the conduit one and the conduit two;

[0007] The cleaning part comprises a motor, the motor is fixed to the end of the housing, a rotating rod is fixed to the output shaft end of the motor, a sliding rod is slidably connected to one side of the rotating rod, a spring is fixed to the end of the rotating rod, and one end of the spring is fixed inside the sliding rod;

[0008] The main cooling part includes a head, a through hole is opened on one side of the head, the cooling pipe 1 is slidably connected inside the through hole, a flange 4 is fixed on one side of the head, the flange 4 is bolted to one side of flange 3, a partition is fixed inside the head, a water inlet pipe is fixed on one side of the head, a water outlet pipe is fixed on one side of the head, a cooling pipe 2 is fixed inside the head, the cooling pipe 2 is sleeved inside the conversion pipe, and an anti-impact cover is fixed on one side of the cooling pipe 2.

[0009] In an embodiment of the utility model, a connecting rod is fixed to the end of the sliding rod, an iron brush is fixed to one side of the connecting rod, and the iron brush is slidably connected to the inside of the shell.

[0010] The beneficial effects of the utility model are:

[0011] The cooling medium is injected into the head through the water inlet pipe, and then the cooling medium enters into the conduit one and the conduit two respectively. At this time, the cooling medium can enter the hot body through the liquid inlet pipe, so that the hot body first flows in the channel after the conduit one and the conduit two are sealed, so that the conduit one can first cool the hot body, and then the hot body enters the shell from the liquid outlet hole. At this time, the cooling tube two can cool the hot body in a large range, so that the cooled hot body is discharged from the liquid outlet pipe. Through the two cooling methods, the hot body can be cooled once in the conduit one and the conduit two due to flow control, and then cooled in a large range through the cooling tube two, so as to achieve an ideal cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the cleaning part in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the flow guide member in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the main cooling part in the utility model.

[0017] In the figure:

[0018] 100-main structure; 110-housing; 111-support frame; 112-liquid outlet pipe; 113-flange 1; 120-cleaning part; 121-motor; 122-rotating rod; 123-sliding rod; 124-spring; 125-connecting rod; 126-iron brush;

[0019] 200-cooling structure; 210-flow guide; 211-conversion tube; 212-flange 2; 213-flange 3; 214-liquid inlet pipe; 215-cooling tube 1; 216-duct 1; 217-duct 2; 218-liquid outlet; 220-main cooling part; 221-head; 222-perforation; 223-flange 4; 224-partition; 225-water inlet pipe; 226-water outlet pipe; 227-cooling tube 2; 228-anti-impact cover. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-4The utility model provides a heat exchanger with multi-stage cooling, including a main structure 100 and a cooling structure 200 fixed on one side of the main structure 100, the main structure 100 includes a shell 110 and a cleaning component 120, the cleaning component 120 is fixed to the end of the shell 110, a support frame 111 is fixed to one side of the shell 110, a liquid outlet pipe 112 is fixed to one side of the shell 110, the liquid outlet pipe 112 can discharge the cooled hot body out of the shell 110, a flange 113 is fixed to one side of the shell 110, after the flange 113 and the flange 212 are fixed together, the guide member 210 can be fixed, the cooling structure 200 includes the guide member 210 and the main cooling component 220, the main cooling component 220 is fixed to one side of the guide member 210, the guide member 210 includes a conversion tube 211, a flange 212 is fixed on one side of the conversion tube 211, the flange 212 is bolted to one side of the flange 113, a sealing member is clamped between the flange 212 and the flange 113, a flange 3 213 is fixed on one side of the conversion tube 211, a liquid inlet pipe 214 is fixed on one side of the conversion tube 211, a cooling tube 1 215 is fixed inside the conversion tube 211, a conduit 1 216 is fixed to the end of the conversion tube 211, a conduit 217 is bolted to one side of the conduit 1 216, a sealing structure is provided at the joint between the conduit 217 and the conversion tube 211, and liquid outlet holes 218 are respectively provided on one side of the conduit 1 216 and the conduit 2 217, and the liquid outlet holes 218 can discharge the heat inside the conduits 1 216 and 217.

[0023] See also Figure 1-2 The cleaning part 120 includes a motor 121, which is fixed at the end of the shell 110. A rotating rod 122 is fixed to the output shaft end of the motor 121. A sliding rod 123 is slidably connected to one side of the rotating rod 122. A spring 124 is fixed to the end of the rotating rod 122. The spring 124 uses elastic force to push the sliding rod 123 with the end of the rotating rod 122 as a fulcrum until the iron brush 126 is pressed against the inner wall of the shell 110, thereby preventing the iron brush 126 from being worn and unable to contact the shell 110. One end of the spring 124 is fixed to the inside of the sliding rod 123. A connecting rod 125 is fixed to the end of the sliding rod 123. Many iron brushes 126 are fixed on the connecting rod 125. An iron brush 126 is fixed to one side of the connecting rod 125, and the iron brush 126 is slidably connected to the inside of the shell 110.

[0024] See also Figure 1 and Figure 3-4The main cooling part 220 includes a head 221, a through hole 222 is opened on one side of the head 221, a seal is arranged between the through hole 222 and the cooling tube 1 215, the cooling tube 1 215 is slidably connected inside the through hole 222, a flange 4 223 is fixed on one side of the head 221, the flange 4 223 is bolted to one side of the flange 3 213, a partition 224 is fixed inside the head 221, the partition 224 can divide the internal space of the head 221 into two areas, so as to prevent the cross-flow of the coolant, a water inlet pipe 225 is fixed on one side of the head 221, a water outlet pipe 226 is fixed on one side of the head 221, a cooling tube 227 is fixed inside the head 221, the cooling tube 227 is sleeved inside the conversion tube 211, an anti-impact cover 228 is fixed on one side of the cooling tube 227, and the anti-impact cover 228 can prevent the heat discharged from the liquid outlet 218 from impacting the cooling tube 227.

[0025] The working process of this utility model:

[0026] When in use, first insert the guide member 210 into the shell 110, and make the opening of the liquid inlet pipe 214 face downward, then use bolts to pass through the flange 212 and screw into the flange 1 113, so that the conversion tube 211 and the shell 110 are fixed together under the action of the seal clamped between them, and then the cooling tube 227 of the main cooling member 220 passes through the conversion tube 211 and enters the shell 110, and at the same time, the cooling tube 1 215 is inserted into the through hole 222, and And ensure that the water inlet pipe 225 opens downward, and then passes through the flange four 223 with bolts and screws into the flange three 213, so that the head 221 and the conversion tube 211 are fixed together under the action of the seal clamped between them. At this time, the coolant can be introduced into the head 221 through the water inlet pipe 225, and the coolant enters the cooling tube 1 215 and the cooling tube 2 227 in the lower half of the head 221 through the head 221, and then the coolant flows to the upper half of the head 221. At the same time, the liquid inlet pipe 2 14 will guide the heat into the conversion tube 211, and the heat will enter the sealed space formed by the conduit 1 216 and the conduit 217 through the conversion tube 211. Since the space inside the conduit 1 216 and the conduit 217 is limited and there is a thicker cooling tube 1 215, the heat can be cooled under the condition of limited flow until it is discharged from the liquid outlet 218 opened by the conduit 1 216 and the conduit 217 to the inside of the shell 110. At this time, the heat will slowly accumulate and cover the cooling tube 2. 227. At the same time, the coolant flowing inside the cooling tube 227 will also cool down the hot body, so that the hot body after two coolings will be discharged from the liquid outlet pipe 112, thereby completing the cooling effect. If it is necessary to clean the outside of the cooling tube 1 215, the tube 217 can be removed. If it is necessary to clean the inside of the shell 110, the motor 121 can be started, and the sliding rod 123 and the connecting rod 125 can be driven to rotate through the rotating rod 122, so that the iron brush 126 can clean the inside of the shell 110.

[0027] It should be noted that the specific model and specifications of the motor 121 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0028] The power supply and principle of the motor 121 are clear to those skilled in the art and will not be described in detail here.

[0029] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat exchanger with multi-stage cooling, comprising a main structure (100) and a cooling structure (200) fixed to one side of the main structure (100), characterized in that: The main structure (100) comprises a shell (110) and a cleaning component (120), wherein the cleaning component (120) is fixed to an end of the shell (110), a support frame (111) is fixed to one side of the shell (110), a liquid outlet pipe (112) is fixed to one side of the shell (110), and a flange 1 (113) is fixed to one side of the shell (110). The cooling structure (200) comprises a flow guide component (210) and a main cooling component (220), wherein the main cooling component (220) is fixed to one side of the flow guide component (210), and the flow guide component (210) comprises a conversion tube (211). A flange 2 (212) is fixed on one side of the tube (211), and the flange 2 (212) is bolted to one side of the flange 1 (113). A flange 3 (213) is fixed on one side of the conversion tube (211). A liquid inlet pipe (214) is fixed on one side of the conversion tube (211). A cooling pipe 1 (215) is fixed inside the conversion tube (211). A conduit 1 (216) is fixed to the end of the conversion tube (211). A conduit 2 (217) is bolted to one side of the conduit 1 (216). Liquid outlet holes (218) are respectively provided on one side of the conduit 1 (216) and the conduit 2 (217). The cleaning component (120) comprises a motor (121), the motor (121) is fixed to the end of the housing (110), a rotating rod (122) is fixed to the output shaft end of the motor (121), a sliding rod (123) is slidably connected to one side of the rotating rod (122), a spring (124) is fixed to the end of the rotating rod (122), and one end of the spring (124) is fixed inside the sliding rod (123); The main cooling part (220) comprises a head (221), a through hole (222) is provided on one side of the head (221), the cooling pipe 1 (215) is slidably connected inside the through hole (222), a flange 4 (223) is fixed on one side of the head (221), the flange 4 (223) is bolted to one side of the flange 3 (213), a partition (224) is fixed inside the head (221), a water inlet pipe (225) is fixed on one side of the head (221), a water outlet pipe (226) is fixed on one side of the head (221), a cooling pipe 2 (227) is fixed inside the head (221), the cooling pipe 2 (227) is sleeved inside the conversion pipe (211), and a shockproof cover (228) is fixed on one side of the cooling pipe 2 (227).

2. The heat exchanger with multi-stage cooling according to claim 1, characterized in that: A connecting rod (125) is fixed to the end of the sliding rod (123), an iron brush (126) is fixed to one side of the connecting rod (125), and the iron brush (126) is slidably connected to the inside of the housing (110).

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