Descaling type heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a descaling type heat exchanger which comprises a heat exchange tube, a heat flow inlet tube is fixedly installed at the top of the heat exchange tube, a heat flow outlet tube is fixedly installed at the bottom of the heat exchange tube, an installation frame is fixedly installed outside the heat exchange tube, and a heat exchange descaling mechanism is arranged in the heat exchange tube. According to the heat exchange and descaling device, cold fluid flows in the heat exchange pipe through a cold flow pipe through the heat exchange and descaling mechanism, the heat exchange effect is guaranteed, a motor is started, a descaling brush at one end of the inner side of a sliding block moves back and forth on the outer wall of the cold flow pipe, and water scales on the outer wall of a water pipe are removed; and the situation that the heat exchange effect on cold fluid is affected by too thick water scale is prevented, by extruding and rotating the protective sleeve, an extruding plate on a spring does not limit a clamping block, the clamping block is separated from a clamping groove while rotating, the protective sleeve slides out of a sliding groove, and the cleaned water scale in the heat exchange pipe is conveniently transferred.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a descaling heat exchanger. Background Art

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified process temperature to meet process requirements. It is also one of the key devices for improving energy efficiency. The heat exchanger industry involves nearly 30 industries, including HVAC, pressure vessels, reclaimed water treatment equipment, chemicals, and petroleum, forming an industrial chain. Shell-and-tube heat exchangers are one type of heat exchanger, but the heat exchange tubes within shell-and-tube heat exchangers are often covered with scale, which significantly reduces the heat transfer efficiency of the encrusted tubes.

[0003] The utility model patent with authorization announcement number: CN219511339U discloses a new type of high-efficiency shell and tube heat exchanger, which includes a shell and a tube box. A heat exchange device is provided inside the shell, and a sealing connection device is provided outside the tube box. The heat exchange device includes a heat exchange mechanism and a fixed deflection mechanism. The heat exchange mechanism is provided on both sides of the shell, and the fixed deflection mechanism is provided inside the heat exchange mechanism.

[0004] Although the above patent can perform the function of heat exchange, it still has the following disadvantages. At present, after a shell and tube heat exchanger has been in operation for a long time, dirt will form on the surface of the heat exchange tube. Since the surface of the heat exchange tube cannot be cleaned in time, the accumulation of dirt will slow down the flow speed inside the heat exchanger or even cause blockage, causing the heat exchange effect of the water pipe inside the heat exchanger to deteriorate, affecting the heat exchange efficiency and resulting in a reduced service life. Therefore, a descaling heat exchanger is currently needed to solve this problem. Utility Model Content

[0005] The purpose of the present utility model is to provide a descaling heat exchanger to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a descaling heat exchanger, comprising a heat exchange tube, a heat flow inlet pipe fixedly mounted on the top of the heat exchange tube, a heat flow outlet pipe fixedly mounted on the bottom of the heat exchange tube, a mounting bracket fixedly mounted on the outside of the heat exchange tube, a heat exchange and descaling mechanism provided inside the heat exchange tube, a cleaning and replacement mechanism provided at the left end of the heat exchange tube, and a movable groove provided on the side of the heat exchange tube close to the mounting bracket.

[0007] The heat exchange and descaling mechanism includes a heat exchange component and a descaling component. The heat exchange component is arranged inside the heat exchange tube, and the descaling component is arranged outside the heat exchange tube.

[0008] Preferably, the heat exchange assembly includes a cold flow chamber, which is fixedly installed on the right side of the heat exchange tube, a cold flow inlet pipe is fixedly installed on the top of the cold flow chamber, a cold flow outlet pipe is fixedly installed on the bottom of the cold flow chamber, a baffle is fixedly installed inside the cold flow chamber, and a cold flow pipe A and a cold flow pipe B are fixedly installed on one end of the cold flow chamber near the inner side of the heat exchange tube.

[0009] Preferably, the descaling assembly includes a motor, which is fixedly mounted on the outside of the mounting frame, and the motor output shaft extends to the inner end of the mounting frame and is fixedly mounted with a gear A, and a connecting rod is rotatably mounted on the outside of the gear A, and a gear B is fixedly mounted on the side of the connecting rod close to the gear A, and a limiting plate is fixedly mounted on the outside of the heat exchange tube, and the connecting rod extends to the inner side of the limiting plate and is fixedly mounted with a slider, and the slider and the limiting plate are slidingly connected, and the inner side of the movable groove is respectively clamped with a first sealing plug and a second sealing plug, so the slider passes through the first sealing plug and the second sealing plug and extends to the inner end of the heat exchange tube where a descaling brush is fixedly mounted.

[0010] Preferably, the gear B is located outside the connecting rod, and the gear B is meshed with the gear A.

[0011] Preferably, the descaling brush is located inside the heat exchange tube, and the descaling brush is slidably connected to the cold flow tube A and the cold flow tube B respectively.

[0012] Preferably, the cleaning and replacement mechanism includes a protective cover, which is slidably installed on the left side of the outside of the heat exchange tube. The protective cover is provided with a slide groove and a card slot on the side close to the heat exchange tube. A spring is fixedly installed inside the protective cover, an extrusion plate is fixedly installed on the top of the spring, and a card block is fixedly installed on the left side of the outside of the heat exchange tube.

[0013] Preferably, the number of the card blocks is six groups, and the card blocks are engaged with the card slots.

[0014] Compared with the prior art, the present invention provides a descaling heat exchanger with the following beneficial effects:

[0015] 1. This descaling heat exchanger uses a heat exchange and descaling mechanism to allow the cold fluid to flow inside the heat exchange tube through the cold flow tube, ensuring the heat exchange effect. For scale accumulated for a long time, after removing the sealing plug, the motor is turned on to drive the slider to move on the inside of the limit plate, so that the descaling brush at one end of the inner side of the slider moves back and forth on the outer wall of the cold flow tube to remove the scale on the outer wall of the water pipe, preventing the scale from being too thick and affecting the heat exchange effect of the cold fluid and reducing the service life.

[0016] 2. The descaling heat exchanger has a cleaning and replacement mechanism. By squeezing and rotating the protective cover, the extrusion plate on the spring no longer restricts the block. While rotating, the block is disengaged from the slot, allowing the protective cover to slide out of the slide slot, making it easier to transfer the cleaned scale inside the heat exchange tube and replace the internal water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0018] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0019] Figure 2 This is a partial schematic diagram of the heat exchange component of the utility model;

[0020] Figure 3 This is a schematic diagram of the heat exchange component of the utility model;

[0021] Figure 4 This is a schematic diagram of the descaling component of the utility model;

[0022] Figure 5 It is a schematic diagram of some components of the utility model;

[0023] Figure 6 This is a schematic diagram of the cleaning and replacement mechanism of the utility model.

[0024] In the figure: 1. heat exchange tube; 2. hot flow inlet tube; 3. hot flow outlet tube; 4. mounting bracket; 5. heat exchange and descaling mechanism; 51. heat exchange assembly; 511. cold flow chamber; 512. cold flow inlet tube; 513. cold flow outlet tube; 514. baffle; 515. cold flow tube A; 516. cold flow tube B; 52. descaling assembly; 521. motor; 522. gear A; 523. connecting rod; 524. gear B; 525. slider; 526. limit plate; 527. descaling brush; 528. first sealing plug; 529. second sealing plug; 6. cleaning and replacement mechanism; 61. protective cover; 62. slide groove; 63. card slot; 64. card block; 65. spring; 66. extrusion plate; 7. movable groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0027] Example 1:

[0028] See also Figure 1-5 The utility model provides a technical solution: a descaling heat exchanger, comprising a heat exchange tube 1, a heat flow inlet pipe 2 fixedly installed on the top of the heat exchange tube 1, a heat flow outlet pipe 3 fixedly installed on the bottom of the heat exchange tube 1, a mounting bracket 4 fixedly installed on the outside of the heat exchange tube 1, a heat exchange and descaling mechanism 5 is arranged inside the heat exchange tube 1, a cleaning and replacement mechanism 6 is arranged at the left end of the heat exchange tube 1, and a movable groove 7 is opened on the side of the heat exchange tube 1 close to the mounting bracket 4.

[0029] The heat exchange and descaling mechanism 5 includes a heat exchange component 51 and a descaling component 52 . The heat exchange component 51 is arranged inside the heat exchange tube 1 , and the descaling component 52 is arranged outside the heat exchange tube 1 .

[0030] Furthermore, the heat exchange assembly 51 includes a cold flow chamber 511, which is fixedly installed on the right side of the heat exchange tube 1. A cold flow inlet pipe 512 is fixedly installed on the top of the cold flow chamber 511, and a cold flow outlet pipe 513 is fixedly installed on the bottom of the cold flow chamber 511. A baffle 514 is fixedly installed inside the cold flow chamber 511. A cold flow pipe A515 and a cold flow pipe B516 are fixedly installed at one end of the cold flow chamber 511 near the inner side of the heat exchange tube 1, respectively, to facilitate heat exchange of the cold fluid.

[0031] Furthermore, the descaling component 52 includes a motor 521, which is fixedly mounted on the outside of the mounting frame 4. The output shaft of the motor 521 extends to the inner end of the mounting frame 4 and is fixedly mounted with a gear A522. The outer side of the gear A522 is rotatably mounted with a connecting rod 523, and the connecting rod 523 is fixedly mounted with a gear B524 on the side close to the gear A522. A limiting plate 526 is fixedly mounted on the outside of the heat exchange tube 1, and the connecting rod 523 extends to the inner side of the limiting plate 526 and is fixedly mounted with a slider 525, and the slider 525 is slidingly connected to the limiting plate 526. The inner side of the movable groove 7 is respectively clamped with a first sealing plug 528 and a second sealing plug 529. The slider 525 passes through the first sealing plug 528 and the second sealing plug 529 and extends to the inner end of the heat exchange tube 1 and is fixed with a descaling brush 527, which is convenient for cleaning and descaling the outer side of the cold flow tube.

[0032] Furthermore, the gear B524 is located outside the connecting rod 523, and the gear B524 is meshedly connected with the gear A522.

[0033] Furthermore, the descaling brush 527 is located inside the heat exchange tube 1, and the descaling brush 527 is slidably connected to the cold flow tube A515 and the cold flow tube B516 respectively, so as to facilitate cleaning.

[0034] Embodiment 2:

[0035] See also Figure 6 , and combined with Example 1, it is further obtained that the cleaning and replacement mechanism 6 includes a protective cover 61, which is slidably installed on the left side of the outside of the heat exchange tube 1, and the protective cover 61 is respectively provided with a slide groove 62 and a clamping groove 63 on the side close to the heat exchange tube 1. A spring 65 is fixedly installed inside the protective cover 61, and an extrusion plate 66 is fixedly installed on the top of the spring 65. A clamping block 64 is fixedly installed on the left side of the outside of the heat exchange tube 1, which is convenient for quickly separating the protective cover 61, so as to facilitate cleaning the inside of the heat exchange tube 1 or replacing equipment.

[0036] Furthermore, the number of the clamping blocks 64 is six, and the clamping blocks 64 are clamped with the clamping slots 63 for easy fixation.

[0037] During actual operation, when this device is used, first, the hot fluid is sent into the interior of the heat exchange tube 1 from the hot flow inlet pipe 2. When the interior of the heat exchange tube 1 is filled with hot fluid, the cold fluid is sent in from the cold flow inlet pipe 512. When the cold fluid enters the interior of the cold flow chamber 511, it will be blocked by the baffle 514 at the upper layer inside the cold flow chamber 511, and enter the interior of the heat exchange tube 1 through the upper end pipes of the cold flow pipe A515 and the cold flow pipe B516, and heat will be exchanged inside the heat exchange tube 1. Then, it will flow back to the lower layer inside the cold flow chamber 511 through the lower end pipes of the cold flow pipe A515 and the cold flow pipe B516, and flow out from the cold flow outlet pipe 513. The exchanged hot fluid is discharged through the hot flow outlet pipe 3. When there is scale on the outer pipes of the cold flow pipe A515 and the cold flow pipe B516, the first sealing plug 528 and the second sealing plug 529 at the movable groove 7 are connected. When the cam 524 is pulled out, the motor 521 is turned on, so that the motor 521 drives the gear A522 to mesh with the gear B524, so that the connecting rod 523 rotates, and the slider 525 slides on the inner side of the limit plate 526 and the movable groove 7. When the slider 525 slides, it drives the descaling brush 527 on the inside of the heat exchange tube 1 to slide left and right along the outside of the cold flow tube A515 and the cold flow tube B516 to clean the scale on the outer wall of the tube. When it is necessary to collect and transfer the scale inside the heat exchange tube 1 or replace the tube inside the heat exchange tube 1, the spring 65 is retracted by squeezing the protective sleeve 61, and the squeezing plate 66 is moved downward, so that the slot 63 no longer presses against the block 64, and then the protective sleeve 61 is rotated to move backward, so that the slide groove 62 slides backward towards the block 64, allowing the protective sleeve 61 to be detached, and the inside of the heat exchange tube 1 is cleaned and replaced.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A descaling heat exchanger, comprising a heat exchange tube (1), characterized in that: A heat flow inlet pipe (2) is fixedly mounted on the top of the heat exchange tube (1), a heat flow outlet pipe (3) is fixedly mounted on the bottom of the heat exchange tube (1), a mounting bracket (4) is fixedly mounted on the outside of the heat exchange tube (1), a heat exchange and descaling mechanism (5) is provided inside the heat exchange tube (1), a cleaning and replacement mechanism (6) is provided at the left end of the heat exchange tube (1), and a movable groove (7) is provided on the side of the heat exchange tube (1) close to the mounting bracket (4); The heat exchange and descaling mechanism (5) comprises a heat exchange component (51) and a descaling component (52); the heat exchange component (51) is arranged inside the heat exchange tube (1); and the descaling component (52) is arranged outside the heat exchange tube (1).

2. The descaling heat exchanger according to claim 1, characterized in that: The heat exchange assembly (51) comprises a cold flow chamber (511), the cold flow chamber (511) being fixedly mounted on the right side of the heat exchange tube (1), a cold flow inlet pipe (512) being fixedly mounted on the top of the cold flow chamber (511), a cold flow outlet pipe (513) being fixedly mounted on the bottom of the cold flow chamber (511), a baffle (514) being fixedly mounted inside the cold flow chamber (511), and a cold flow pipe A (515) and a cold flow pipe B (516) being fixedly mounted on one end of the cold flow chamber (511) close to the inner side of the heat exchange tube (1).

3. The descaling heat exchanger according to claim 1, characterized in that: The descaling assembly (52) includes a motor (521), the motor (521) is fixedly mounted on the outside of the mounting frame (4), the output shaft of the motor (521) extends to the inside of the mounting frame (4) and is fixedly mounted with a gear A (522) at one end, the gear A (522) is rotatably mounted on the outside of the gear A (522), the gear B (524) is fixedly mounted on the side of the connecting rod (523) close to the gear A (522), and the heat exchange tube (1) is fixedly mounted on the outside with a limited position. The connecting rod (523) extends to the inner side of the limiting plate (526) and is fixedly installed with a slider (525), and the slider (525) and the limiting plate (526) are slidably connected, and the inner side of the movable groove (7) is respectively clamped with a first sealing plug (528) and a second sealing plug (529), and the slider (525) passes through the first sealing plug (528) and the second sealing plug (529) and extends to the inside of the heat exchange tube (1), and a descaling brush (527) is fixedly installed at one end.

4. The descaling heat exchanger according to claim 3, characterized in that: The gear B (524) is located outside the connecting rod (523), and the gear B (524) is meshed with the gear A (522).

5. The descaling heat exchanger according to claim 3, characterized in that: The descaling brush (527) is located inside the heat exchange tube (1), and the descaling brush (527) is slidably connected to the cold flow tube A (515) and the cold flow tube B (516) respectively.

6. The descaling heat exchanger according to claim 1, characterized in that: The cleaning and replacement mechanism (6) includes a protective sleeve (61), which is slidably mounted on the left side of the exterior of the heat exchange tube (1). A sliding groove (62) and a clamping groove (63) are respectively provided on the side of the protective sleeve (61) close to the heat exchange tube (1). A spring (65) is fixedly mounted inside the protective sleeve (61), and an extrusion plate (66) is fixedly mounted on the top of the spring (65). A clamping block (64) is fixedly mounted on the left side of the exterior of the heat exchange tube (1).

7. The descaling heat exchanger according to claim 6, characterized in that: The number of the card blocks (64) is six groups, and the card blocks (64) are engaged with the card slots (63).

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