Heat exchange assembly of cracking furnace
By introducing movable hinges and locking components into the pyrolysis furnace, the disassembly process of the heat exchange tubes is simplified, the problems of heat exchange tube material aging and corrosion are solved, production efficiency is improved and the risk of seal failure is reduced, and safe and efficient heat exchange tube replacement is achieved.
Patent Information
- Application Number
- CN202422760922.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Under high temperature and high pressure operation, the heat exchange tubes of existing pyrolysis furnaces age and corrode, requiring frequent replacement. The disassembly process relies on a variety of tools, making it complex and inefficient.
A heat exchange assembly including movable hinges and locking components was designed. The disassembly process is simplified by combining locking blocks, control blocks and levers, and high-temperature resistant materials such as high-temperature resistant cotton and sealing strips are used to ensure safety and efficiency.
This simplifies and standardizes heat exchanger tube replacement, reduces disassembly time, improves production efficiency, lowers the risk of seal failure, and ensures the safe and efficient operation of the pyrolysis furnace.
Smart Images

Figure CN223649733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pyrolysis furnace technology, specifically to a heat exchange component for a pyrolysis furnace. Background Technology
[0002] A pyrolysis furnace is a piece of equipment used in high-temperature pyrolysis processes, widely applied in industries such as chemical, petroleum, and plastics recycling. The pyrolysis process refers to the decomposition of organic matter at high temperatures under oxygen-deficient or limited oxygen conditions, producing gaseous, liquid, and solid products.
[0003] Most existing pyrolysis furnaces operate under high temperature and high pressure for extended periods, causing the heat exchange tubes to gradually age and even corrode. Therefore, the heat exchange tubes need to be replaced regularly. However, to achieve good pyrolysis results, current pyrolysis furnaces typically use a large number of parts for assembly. This necessitates the use of various tools to disassemble and remove these parts, and then opening the pyrolysis furnace to replace the heat exchange tubes. As such, this does not meet the current requirements. To address this, we propose a heat exchange component for pyrolysis furnaces. Utility Model Content
[0004] This utility model provides a heat exchange component for a pyrolysis furnace, which reduces the reliance on various tools during disassembly, making the disassembly process simpler and more standardized. It solves the problem mentioned in the background art that current pyrolysis furnaces usually use a large number of parts for installation in order to achieve good pyrolysis effect. This leads to the need to use various tools to disassemble and unload the parts during disassembly, and then open the pyrolysis furnace to replace the heat exchange tubes.
[0005] This utility model provides the following technical solution: a heat exchange component for a pyrolysis furnace, including a pyrolysis furnace body and a heat exchange tube. A pyrolysis chamber is provided in the pyrolysis furnace body, and the heat exchange tube is inserted into the pyrolysis chamber. The pyrolysis furnace body is configured as a first furnace body and a second furnace body. The heat exchange tube is located between the first furnace body and the second furnace body. The first furnace body and the second furnace body are movably hinged on one side. The first furnace body and the second furnace body are provided with mounting components.
[0006] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, the installation component includes a groove formed in the second furnace body, a locking block installed in the groove, a locking slot corresponding to the locking block formed in the first furnace body, the locking block engaging with the locking slot, and a control block for controlling the locking block provided in the groove, the control block being fixedly installed on the rear side of the locking block.
[0007] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, the second furnace body is provided with a control groove corresponding to the control block, the control groove is connected to the groove, and the control block is slidably inserted into the control groove.
[0008] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, a telescopic rod is provided in the groove, the telescopic rod is configured as an elastic rod, a first spring is sleeved on the telescopic rod, one end of the first spring is connected to the drive control block, and the other end of the first spring is connected to the inner wall of the groove.
[0009] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, wherein: a hollow groove is provided in the first furnace body, the hollow groove is connected to the slot, a reinforcing block is provided in the hollow groove, and a reinforcing groove corresponding to the reinforcing block is provided in the slot, the reinforcing block is engaged with the reinforcing groove.
[0010] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, a second spring is provided in the empty slot, a lever is installed on the reinforcing block, a lever groove corresponding to the lever is opened on the first furnace body, the lever groove is connected to the empty slot, and the lever is slidably inserted into the lever groove.
[0011] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, the pyrolysis furnace body has a slot corresponding to the heat exchange tube, and the heat exchange tube is inserted into the slot.
[0012] As an optional solution for the heat exchange component of the pyrolysis furnace described in this utility model, the slot is provided with heat insulation cotton, the heat insulation cotton is set as high temperature resistant cotton, and a sealing strip is installed on the inner side wall of the first furnace body, the sealing strip is set as high temperature resistant cotton strip.
[0013] This utility model has the following beneficial effects:
[0014] 1. The heat exchange components of this pyrolysis furnace, by setting up movable hinges and locking components, reduce the reliance on various tools during disassembly, making the disassembly process simpler and more standardized. The design of locking blocks, control blocks and lever blocks makes the disassembly process more intuitive and quick, reducing disassembly time and allowing the replacement of heat exchange tubes to be completed in a short time, thereby reducing the downtime of the pyrolysis furnace and improving production efficiency.
[0015] 2. The heat exchange components of this pyrolysis furnace use high-temperature resistant cotton as insulation, which can effectively prevent the pyrolysis furnace from failing during operation and ensure its safety and efficiency. The use of high-temperature resistant materials can ensure the long-term performance of the insulation cotton and sealing strip in high-temperature environments and reduce the risk of seal failure due to thermal aging. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the main body cross-section of this utility model.
[0018] Figure 3 This is a side view sectional structural diagram of the present invention.
[0019] Figure 4 This is a side view of the structural diagram of this utility model.
[0020] In the diagram: 110, pyrolysis furnace body; 111, heat exchange tube; 112, pyrolysis chamber; 113, first furnace body; 114, second furnace body; 120, mounting assembly; 121, groove; 122, locking block; 123, locking slot; 124, control block; 125, control slot; 126, telescopic rod; 127, elastic rod; 128, first spring; 130, empty slot; 131, reinforcing block; 132, reinforcing slot; 133, second spring; 134, lever block; 135, lever slot; 140, slot; 141, insulation cotton; 142, sealing strip. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1: This example aims to address the issue that current pyrolysis furnaces typically use numerous parts for assembly to achieve good pyrolysis results. This necessitates the use of various tools to disassemble and remove these parts, followed by opening the furnace to replace the heat exchanger tubes 111. Please refer to [link to relevant documentation]. Figures 1-4 A heat exchange assembly for a pyrolysis furnace includes a pyrolysis furnace body 110 and a heat exchange tube 111. A pyrolysis chamber 112 is formed inside the pyrolysis furnace body 110, and the heat exchange tube 111 is inserted into the pyrolysis chamber 112. The pyrolysis furnace body 110 is configured as a first furnace body 113 and a second furnace body 114. The heat exchange tube 111 is located between the first furnace body 113 and the second furnace body 114. The first furnace body 113 and the second furnace body 114 are movably hinged on one side. The first furnace body 113 and the second furnace body 114 are provided with an installation assembly 120.
[0023] The mounting assembly 120 includes a groove 121 formed within the second furnace body 114, in which a locking block 122 is installed. A corresponding slot 123 is formed within the first furnace body 113, allowing the locking block 122 to engage with the slot 123. A control block 124 for controlling the locking block 122 is provided within the groove 121, and the control block 124 is fixedly installed on the rear side of the locking block 122. A control groove 125 corresponding to the control block 124 is formed on the second furnace body 114, communicating with the groove 121. The control block 124 is slidably inserted into the control groove 125. A telescopic rod 126 is provided within the groove 121. The telescopic rod 126 is an elastic rod 127, and a first spring 128 is sleeved on the telescopic rod 126. One end of the first spring 128 is connected to the control block 124, and the other end is connected to the inner wall of the groove 121.
[0024] A slot 130 is formed inside the first furnace body 113, which communicates with a slot 123. A reinforcing block 131 is provided inside the slot 130. A reinforcing groove 132 corresponding to the reinforcing block 131 is formed inside the slot 122, and the reinforcing block 131 engages with the reinforcing groove 132. A second spring 133 is provided inside the slot 130. A lever 134 is installed on the reinforcing block 131. A lever groove 135 corresponding to the lever 134 is formed on the first furnace body 113, which communicates with the slot 130. The pyrolysis furnace body 110 is composed of the first furnace body 113 and the second furnace body 114, which are connected by a movable hinge on one side.
[0025] Heat exchange tube 111 is inserted into pyrolysis chamber 112, located between first furnace body 113 and second furnace body 114. A retaining block 122 is installed in groove 121, and a corresponding retaining slot 123 is located in first furnace body 113. The retaining block 122 engages with the retaining slot 123, securing the connection between first furnace body 113 and second furnace body 114. Control block 124 is fixed to the rear side of retaining block 122 and slidably inserted into control groove 125, which communicates with groove 121. Telescopic rod 126 is located in groove 121, with a first spring 128 sleeved on it, connecting control block 124 to the inner wall of groove 121. First furnace body 113 has an internal slot 130, communicating with retaining slot 123. A reinforcing block 131 is located in slot 130, and a corresponding reinforcing slot 132 is located in retaining block 122. The reinforcing block 131 engages with reinforcing slot 132, providing reinforcement. The second spring 133 is located in the empty slot 130. The reinforcing block 131 is equipped with a lever 134. The first furnace body 113 has a corresponding lever slot 135. The lever 134 is slidably inserted into the lever slot 135.
[0026] By operating the lever 134, the resistance of the second spring 133 is overcome, and the lever 134 is moved out of the lever slot 135. The movement of the lever 134 causes the reinforcing block 131 to disengage from the reinforcing slot 132. After the reinforcing block 131 disengages, an external force is applied to the control block 124, causing it to slide within the control slot 125 and compress the first spring 128, thereby causing the locking block 122 to disengage from the locking slot 123.
[0027] After the locking block 122 disengages, the first furnace body 113 and the second furnace body 114 are movably connected and can rotate relative to each other, exposing the heat exchange tube 111. The exposed old heat exchange tube 111 is removed from the pyrolysis chamber 112. The new heat exchange tube 111 is inserted into the pyrolysis chamber 112. The control block 124 is pushed back to its initial position, the first spring 128 resets, and the locking block 122 re-engages into the locking slot 123. The push block 134 is pushed back into the push slot 135, the second spring 133 resets, and the reinforcing block 131 re-engages into the reinforcing slot 132. The first furnace body 113 and the second furnace body 114 are closed again, completing the replacement of the heat exchange tube 111. It is then slidably inserted into the push slot 135.
[0028] In this embodiment, by setting up movable hinges and locking components, the reliance on various tools during disassembly is reduced, making the disassembly process simpler and more standardized. The design of locking block 122, control block 124 and lever block 134 makes the disassembly process more intuitive and faster, reducing disassembly time and allowing the replacement of heat exchange tube 111 to be completed in a shorter time, thereby reducing the downtime of the cracking furnace and improving production efficiency.
[0029] Example 2 aims to address the leakage of high-temperature gases or media during the operation of a pyrolysis furnace. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1-4 The pyrolysis furnace body 110 has slots 140 corresponding to heat exchange tubes 111. The heat exchange tubes 111 are inserted into the slots 140, and the matching design between the slots 140 and the heat exchange tubes 111 provides a reliable connection. Insulation cotton 141 is installed inside the slots 140. The insulation cotton 141 is made of high-temperature resistant cotton. A sealing strip 142 is installed on the inner side wall of the first furnace body 113. The sealing strip 142 is made of high-temperature resistant cotton strip.
[0030] In this embodiment, by using high-temperature resistant cotton as insulation cotton 141, the safety and efficiency of the pyrolysis furnace can be effectively ensured during operation. The use of high-temperature resistant materials can ensure the long-term performance of insulation cotton 141 and sealing strip 142 in high-temperature environments and reduce the risk of sealing failure due to thermal aging.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A heat exchange assembly for a pyrolysis furnace, comprising a pyrolysis furnace body (110) and heat exchange tubes (111), characterized in that: The pyrolysis furnace body (110) has a pyrolysis chamber (112) inside, and the heat exchange tube (111) is inserted into the pyrolysis chamber (112). The pyrolysis furnace body (110) is configured as a first furnace body (113) and a second furnace body (114). The heat exchange tube (111) is located between the first furnace body (113) and the second furnace body (114). The first furnace body (113) and the second furnace body (114) are movably hinged on one side. The first furnace body (113) and the second furnace body (114) are provided with mounting components (120).
2. The heat exchange assembly of a pyrolysis furnace according to claim 1, characterized in that: The mounting assembly (120) includes a groove (121) formed in the second furnace body (114), a locking block (122) is installed in the groove (121), and a slot (123) corresponding to the locking block (122) is formed in the first furnace body (113). The locking block (122) engages with the slot (123). A control block (124) for controlling the locking block (122) is provided in the groove (121), and the control block (124) is fixedly installed on the rear side of the locking block (122).
3. The heat exchange assembly of a pyrolysis furnace according to claim 2, characterized in that: The second furnace body (114) has a control groove (125) corresponding to the control block (124). The control groove (125) is connected to the groove (121), and the control block (124) is slidably inserted into the control groove (125).
4. The heat exchange assembly of a pyrolysis furnace according to claim 2, characterized in that: A telescopic rod (126) is provided in the groove (121). The telescopic rod (126) is configured as an elastic rod (127). A first spring (128) is provided on the outer sleeve of the telescopic rod (126). One end of the first spring (128) is connected to the drive control block (124), and the other end of the first spring (128) is connected to the inner wall of the groove (121).
5. The heat exchange assembly of a pyrolysis furnace according to claim 2, characterized in that: The first furnace body (113) has an empty slot (130) inside, the empty slot (130) is connected to the slot (123), a reinforcing block (131) is provided in the empty slot (130), and a reinforcing groove (132) corresponding to the reinforcing block (131) is provided in the slot (122), the reinforcing block (131) and the reinforcing groove (132) are engaged.
6. The heat exchange assembly of a pyrolysis furnace according to claim 5, characterized in that: A second spring (133) is provided in the empty slot (130), a lever (134) is installed on the reinforcing block (131), and a lever groove (135) corresponding to the lever (134) is opened on the first furnace body (113). The lever groove (135) is connected to the empty slot (130), and the lever (134) is slidably inserted into the lever groove (135).
7. The heat exchange assembly of a pyrolysis furnace according to claim 1, characterized in that: The pyrolysis furnace body (110) has a slot (140) corresponding to the heat exchange tube (111), and the heat exchange tube (111) is inserted into the slot (140).
8. The heat exchange assembly of a pyrolysis furnace according to claim 7, characterized in that: The slot (140) is provided with heat insulation cotton (141), which is made of high temperature resistant cotton. The inner side wall of the first furnace body (113) is equipped with a sealing strip (142), which is made of high temperature resistant cotton strip.