CO integrated furnace with multiple heat exchange structure
Patent Information
- Application Number
- CN202522073719.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-26
AI Technical Summary
[0006]为了解决上述技术问题，本实用新型提供了一种具有多重换热结构CO一体炉，以解决现有技术中，传统的CO一体炉内废气往往燃烧不够充分及换热效果不足的技术问题
[0020]基于以上方面，本申请实施例实现了：
Smart Images
Figure CN224666102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of incineration heat exchange technology, and more specifically, to an integrated CO furnace with multiple heat exchange structures. Background Technology
[0002] With increasingly stringent environmental protection requirements and ever-increasing demands for energy efficiency, combustion furnaces (CO furnaces) are playing an increasingly important role in industries such as chemical, petroleum, and metallurgy. CO furnaces are mainly used to treat combustible waste gases generated during industrial production. Through high-temperature combustion, the toxic and harmful components in the waste gases are converted into carbon dioxide and water, thereby achieving harmless emission of the waste gases. Traditional integrated CO furnaces usually integrate the combustion chamber and heat exchange structure into the same device, which has the advantages of compact structure and small footprint. Therefore, they are widely used in many industrial scenarios. However, in actual application, the waste gases in traditional integrated CO furnaces are often not fully combusted and the heat exchange effect is insufficient.
[0003] On the one hand, traditional equipment often uses a single or simple heat exchange structure, such as a single shell-and-tube heat exchanger or a simple convection heat exchange surface arrangement. This design results in the waste heat in the flue gas not being fully recovered, and the high-temperature flue gas is often directly discharged from the system, which not only causes a large amount of heat energy waste, but also makes the exhaust gas temperature too high. In addition, the high-temperature flue gas will also put heat load pressure on the chimney and purification device, shorten the service life of the equipment, and increase operating costs.
[0004] On the other hand, before the exhaust gas enters the combustion chamber, it needs to be heated to a certain temperature to ensure a stable combustion rate and complete combustion. In traditional structures, the exhaust gas is often not preheated sufficiently or the preheating temperature is too low, resulting in a low temperature when it enters the combustion chamber, which slows down the combustion reaction rate and leads to incomplete combustion of the exhaust gas.
[0005] Therefore, existing integrated CO furnaces need improvement in terms of combustion efficiency and heat exchange efficiency. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a CO integrated furnace with multiple heat exchange structures, thereby solving the technical problems of insufficient combustion and inadequate heat exchange effect of exhaust gas in traditional CO integrated furnaces.
[0007] The purpose and effect of this utility model of an integrated CO furnace with multiple heat exchange structures are achieved by the following specific technical means:
[0008] A CO integrated furnace with multiple heat exchange structures includes:
[0009] The furnace body and outer shell are provided. The outer shell is installed on the outside of the furnace body. The furnace body is provided with a first heat exchange chamber, a second heat exchange chamber and a third heat exchange chamber. The furnace body is also provided with a combustion chamber and a gas passage. An air inlet is provided on one side of the furnace body and an air outlet is provided on the top of the furnace body.
[0010] The first heat exchange chamber is equipped with multiple sets of heat exchange tubes, the bottom of the second heat exchange chamber is provided with heat storage ceramics, the third heat exchange chamber and the combustion chamber are each equipped with multiple sets of W-shaped heat exchange tubes, and the combustion chamber is also equipped with a catalyst carrier.
[0011] According to a preferred embodiment, the multiple sets of heat exchange tubes are connected to the air inlet and the second heat exchange chamber, and the top of the first heat exchange chamber is connected to the air outlet.
[0012] The first heat exchange chamber is provided with two sets of first guide plates. The two sets of first guide plates are fixedly connected to the top and bottom of the first heat exchange chamber, respectively. Multiple sets of through holes are opened on the two sets of first guide plates, and multiple sets of heat exchange tubes pass through the through holes.
[0013] According to a preferred embodiment, a first support frame is detachably connected to the bottom of the second heat exchange chamber, the heat storage ceramic is clamped on the top of the first support frame, and a first ventilation net is provided on one side of the second heat exchange chamber.
[0014] According to a preferred embodiment, a second support frame is detachably connected inside the combustion chamber. The second support frame is located at the top of the W-shaped heat exchange tube, and the catalyst carrier is clamped at the top of the second support frame. The catalyst carrier contains a catalyst.
[0015] The second heat exchange chamber is connected to the combustion chamber through the first ventilation net, and the combustion chamber is provided with a second ventilation net on one side.
[0016] According to a preferred embodiment, a plurality of partition plates and two sets of second guide plates are provided on one side of the second heat exchange chamber, and a plurality of air passages are formed between the plurality of partition plates and the two sets of second guide plates.
[0017] According to a preferred embodiment, a third ventilation net and a fourth ventilation net are respectively provided at the top and bottom of the multiple sets of air passages. The multiple sets of air passages are all connected to the first heat exchange chamber through the third ventilation net, and the multiple sets of air passages are all connected to the third heat exchange chamber through the fourth ventilation net.
[0018] According to a preferred embodiment, two sets of air guide pipes are provided on one side of the furnace body. The two sets of air guide pipes are respectively connected to multiple sets of air passages and a third heat exchange chamber. One end of the two sets of air guide pipes is connected to the same set of connecting pipes.
[0019] According to a preferred embodiment, a first thermocouple is installed on one side of each of the two sets of air guide pipes, and two sets of second thermocouples are installed on one side of the combustion chamber.
[0020] Based on the above aspects, the embodiments of this application achieve the following:
[0021] First, the exhaust gas exchanges heat with the high-temperature gas after combustion through the heat exchange tubes, preheating the exhaust gas entering through the inlet. At the same time, the heat storage ceramic absorbs some of the heat in the combustion chamber. After entering the second heat exchange chamber, the exhaust gas exchanges heat with the heat storage ceramic. The two heat exchanges preheat the exhaust gas, which helps to improve the degree and rate of combustion and reduce the emission of toxic gases due to incomplete combustion. The catalyst in the combustion chamber can also improve the combustion efficiency of the exhaust gas. Second, the heat in the combustion chamber is absorbed by the heat storage ceramic and exchanges heat with the exhaust gas. After combustion, the exhaust gas flows through the first heat exchange chamber and exchanges heat with the exhaust gas that just entered the heat exchange tubes, reducing the temperature of the gas after combustion and improving the heat exchange efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an integrated CO furnace with multiple heat exchange structures provided in this embodiment of the utility model;
[0023] Figure 2 This is an exploded view of an integrated CO furnace with multiple heat exchange structures provided in this embodiment of the present invention;
[0024] Figure 3 This is a schematic diagram of the combustion chamber in a CO integrated furnace with multiple heat exchange structures provided by an embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the internal structure of a CO integrated furnace with multiple heat exchange structures provided in an embodiment of this utility model.
[0026] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0027] 100. Furnace body; 101. Outer shell; 102. First heat exchange chamber; 103. Second heat exchange chamber; 104. Third heat exchange chamber; 105. Combustion chamber; 106. Gas duct; 107. Air inlet; 108. Air outlet; 109. Heat exchange tube; 110. Heat storage ceramic; 111. W-shaped heat exchange tube; 112. Catalyst carrier; 113. First guide plate; 114. First support frame; 115. Second support frame; 116. First ventilation mesh; 117. Second ventilation mesh; 118. Partition plate; 119. Second guide plate; 120. Third ventilation mesh; 121. Gas guide pipe; 122. Connecting pipe; 123. First thermocouple; 124. Second thermocouple; 125. Fourth ventilation mesh. Detailed Implementation
[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.
[0029] As attached Figure 1 To be continued Figure 4 As shown:
[0030] A CO integrated furnace with multiple heat exchange structures includes a furnace body 100 and an outer shell 101. The outer shell 101 is installed on the outside of the furnace body 100. A first heat exchange chamber 102, a second heat exchange chamber 103 and a third heat exchange chamber 104 are provided inside the furnace body 100. A combustion chamber 105 and a gas passage 106 are also provided inside the furnace body 100. An air inlet 107 is provided on one side of the furnace body 100 and an air outlet 108 is provided on the top of the furnace body 100.
[0031] Multiple sets of heat exchange tubes 109 are installed in the first heat exchange chamber 102. A heat storage ceramic 110 is provided at the bottom of the second heat exchange chamber 103. The heat storage ceramic 110 can absorb the heat in the combustion chamber 105 and exchange heat with the exhaust gas. Multiple sets of W-shaped heat exchange tubes 111 are provided in both the third heat exchange chamber 104 and the combustion chamber 105. All sets of W-shaped heat exchange tubes 111 can exchange heat with the exhaust gas. A catalyst carrier 112 is also provided in the combustion chamber 105.
[0032] Specifically, the exhaust gas enters the heat exchange tube 109 from the inlet 107, passes through the heat exchange tube 109 to the second heat exchange chamber 103, then enters the combustion chamber 105 from the first ventilation net 116, and then enters the air passage 106 from the second ventilation net 117, where it is divided into two streams. One part enters the first heat exchange chamber 102 from the third ventilation net 120 and is finally discharged from the outlet 108. The other part enters one set of guide pipes 121, passes through the connecting pipe 122 and the other set of guide pipes 121 to enter the third heat exchange chamber 104, then enters the air passage 106 from the fourth ventilation net 125, and then enters the first heat exchange chamber 102 from the third ventilation net 120 and is finally discharged from the outlet 108.
[0033] Multiple sets of heat exchange tubes 109 are connected to the air inlet 107 and the second heat exchange chamber 103, and the top of the first heat exchange chamber 102 is connected to the air outlet 108.
[0034] Two sets of first guide plates 113 are provided in the first heat exchange chamber 102. The two sets of first guide plates 113 are fixedly connected to the top and bottom of the first heat exchange chamber 102 respectively. Multiple sets of through holes are opened on the two sets of first guide plates 113, and multiple sets of heat exchange tubes 109 pass through the through holes.
[0035] Understandably, the first guide plate 113 can block the gas after combustion from entering the first heat exchange chamber 102, so that the high-temperature gas after combustion can fully exchange heat with the exhaust gas that has just entered the heat exchange tube 109, thereby reducing the temperature of the high-temperature gas after combustion and preheating the exhaust gas to improve the combustion efficiency of the exhaust gas.
[0036] The bottom of the second heat exchange chamber 103 is detachably connected to a first support frame 114, and a heat storage ceramic 110 is clamped on the top of the first support frame 114. A first ventilation net 116 is provided on one side of the second heat exchange chamber 103.
[0037] Understandably, the heat storage ceramic 110 can absorb some of the heat generated by the combustion of exhaust gas in the combustion chamber 105 and exchange heat with the exhaust gas entering the second heat exchange chamber 103 to further preheat the exhaust gas.
[0038] A second support frame 115 is detachably connected inside the combustion chamber 105. The second support frame 115 is located at the top of the W-shaped heat exchange tube 111. A catalyst carrier 112 is clamped at the top of the second support frame 115, and the catalyst carrier 112 contains a catalyst.
[0039] Specifically, the exhaust gas is burned in the combustion chamber 105, and the W-shaped heat exchange tube 111 continuously absorbs the heat generated by the combustion of the exhaust gas. At the same time, the catalyst provides a large number of tiny active sites on its surface, which significantly reduces the activation energy required for the oxidation reaction of exhaust gas and oxygen, thereby improving combustion efficiency.
[0040] The second heat exchange chamber 103 is connected to the combustion chamber 105 through the first ventilation net 116, and the combustion chamber 105 is provided with a second ventilation net 117 on one side.
[0041] Multiple sets of partition plates 118 and two sets of second guide plates 119 are provided on one side of the second heat exchange chamber 103, and multiple sets of air passages 106 are formed between the multiple sets of partition plates 118 and the two sets of second guide plates 119.
[0042] The top and bottom of the multiple air passages 106 are respectively provided with a third ventilation net 120 and a fourth ventilation net 125. The multiple air passages 106 are all connected to the first heat exchange chamber 102 through the third ventilation net 120, and the multiple air passages 106 are all connected to the third heat exchange chamber 104 through the fourth ventilation net 125.
[0043] Understandably, some of the gas after combustion enters one set of gas guide pipes 121, passes through the connecting pipe 122 and another set of gas guide pipes 121, and enters the third heat exchange chamber 104 to exchange heat with the W-shaped heat exchange tube 111, which further reduces the temperature of the gas after combustion and improves the heat exchange efficiency.
[0044] Two sets of air guide pipes 121 are provided on one side of the furnace body 100. The two sets of air guide pipes 121 are respectively connected to multiple sets of air passages 106 and the third heat exchange chamber 104. One end of the two sets of air guide pipes 121 is connected to the same set of connecting pipes 122.
[0045] Two sets of gas guide pipes 121 are each equipped with a first thermocouple 123 on one side, and two sets of second thermocouples 124 are equipped on one side of the combustion chamber 105. The two sets of first thermocouples 123 can monitor the temperature of the gas entering the third heat exchange chamber 104 before and after heat exchange, and the second thermocouples 124 monitor the temperature inside the combustion chamber 105, so that users can monitor the combustion and heat exchange.
[0046] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A CO integrated furnace with multiple heat exchange structures, comprising a furnace body (100) and an outer shell (101), characterized in that: The furnace body (100) is equipped with the outer shell (101) on the outside. The furnace body (100) is provided with a first heat exchange chamber (102), a second heat exchange chamber (103) and a third heat exchange chamber (104). The furnace body (100) is also provided with a combustion chamber (105) and an air passage (106). An air inlet (107) is provided on one side of the furnace body (100). An air outlet (108) is provided on the top of the furnace body (100). The first heat exchange chamber (102) is equipped with multiple sets of heat exchange tubes (109), the bottom of the second heat exchange chamber (103) is provided with heat storage ceramic (110), the third heat exchange chamber (104) and the combustion chamber (105) are each provided with multiple sets of W-shaped heat exchange tubes (111), and the combustion chamber (105) is also provided with a catalyst carrier (112).
2. The CO integrated furnace with multiple heat exchange structures according to claim 1, characterized in that... : Multiple sets of heat exchange tubes (109) are connected to the air inlet (107) and the second heat exchange chamber (103), and the top of the first heat exchange chamber (102) is connected to the air outlet (108); The first heat exchange chamber (102) is provided with two sets of first guide plates (113). The two sets of first guide plates (113) are fixedly connected to the top and bottom of the first heat exchange chamber (102) respectively. Multiple sets of through holes are opened on the two sets of first guide plates (113), and multiple sets of heat exchange tubes (109) pass through the through holes.
3. The CO integrated furnace with multiple heat exchange structures according to claim 1, characterized in that: The bottom of the second heat exchange chamber (103) is detachably connected to a first support frame (114), the top of the first support frame (114) is fitted with the heat storage ceramic (110), and a first ventilation net (116) is provided on one side of the second heat exchange chamber (103).
4. A CO integrated furnace with multiple heat exchange structures according to claim 3, characterized in that: The combustion chamber (105) is detachably connected to a second support frame (115), which is located at the top of the W-shaped heat exchange tube (111). The catalyst carrier (112) is clamped at the top of the second support frame (115), and the catalyst carrier (112) contains a catalyst. The second heat exchange chamber (103) is connected to the combustion chamber (105) through the first ventilation net (116), and a second ventilation net (117) is provided on one side of the combustion chamber (105).
5. A CO integrated furnace with multiple heat exchange structures according to claim 4, characterized in that: The second heat exchange chamber (103) is provided with multiple sets of partition plates (118) and two sets of second guide plates (119) on one side, and multiple sets of air passages (106) are formed between the multiple sets of partition plates (118) and the two sets of second guide plates (119).
6. A CO integrated furnace with multiple heat exchange structures according to claim 5, characterized in that: The top and bottom of the multiple sets of air passages (106) are respectively provided with a third ventilation net (120) and a fourth ventilation net (125). The multiple sets of air passages (106) are all connected to the first heat exchange chamber (102) through the third ventilation net (120), and the multiple sets of air passages (106) are all connected to the third heat exchange chamber (104) through the fourth ventilation net (125).
7. A CO integrated furnace with multiple heat exchange structures according to claim 1, characterized in that: Two sets of gas guide pipes (121) are provided on one side of the furnace body (100). The two sets of gas guide pipes (121) are respectively connected to multiple sets of gas passages (106) and the third heat exchange chamber (104). One end of the two sets of gas guide pipes (121) is connected to the same set of connecting pipes (122).
8. A CO integrated furnace with multiple heat exchange structures according to claim 7, characterized in that: Both sets of air guide pipes (121) are provided with a first thermocouple (123) on one side, and two sets of second thermocouples (124) are provided on one side of the combustion chamber (105).