Sectional type flue gas heat exchanger

Abstract

The utility model discloses a sectional type flue gas heat exchanger, which belongs to the field of sectional type flue gas heat exchange and comprises a heat exchange component, the heat exchange component comprises a first end plate and a second end plate, and a plurality of first flanges are fixedly connected to the surfaces of the upper end and the lower end of the second end plate. The surfaces of the first flanges are fixedly connected with first connecting pipes and second connecting pipes respectively, the surface of one side of the first end plate is fixedly connected with a plurality of through pipes, and the surface of the other side of the first end plate is fixedly connected with a plurality of second flanges. Therefore, the multiple sets of heat exchangers can be conveniently and rapidly assembled, heat exchange can be conveniently conducted on flue gas of different amounts, universality is enhanced, meanwhile, the overall structure can be disassembled and cleaned according to needs, particulate matter can be filtered, and then practicability can be enhanced.

Description

Technical Field

[0001] The utility model relates to the field of segmented flue gas heat exchange, in particular to a segmented flue gas heat exchanger. Background Art

[0002] The flue gas heat exchanger is an energy-saving product for flue gas filtration. It uses the original high-temperature flue gas heat before desulfurization to heat the clean flue gas after desulfurization to achieve a waste heat recovery purpose. Among them, the "segmented flue gas heat exchanger" disclosed in the application number "CN202322238201.2" is also an increasingly mature technology. Its "the overall structure of the utility model is reasonably set. The main body of the flue gas hot water heat exchanger is connected by a number of flue gas hot water heat exchanger modules. The segmented combination can adjust the number of combinations according to the flue gas volume and flue gas temperature. The larger the flue gas volume, the more number will be increased, and the higher the flue gas temperature, the more number will be increased. In addition, the flue gas hot water heat exchanger module The number is an odd number to ensure that water enters from the bottom and exits from the top, thereby improving the heat exchange efficiency". However, the heat exchanger has the following defects during use: the heat exchanger module provided in the heat exchanger cooperates with the heat exchanger body to facilitate segmented combination operation according to the amount of flue gas, but the above structure is relatively simple, so it is inconvenient to assemble or disassemble in segments. Based on this, it is necessary to provide a heat exchanger that is easy to assemble and disassemble quickly; in addition, the heat exchanger can only achieve a heat exchange effect, so the particulate matter in the flue gas is not easy to filter, which affects the heat exchange efficiency of the flue gas. At the same time, long-term heat replacement will cause the heat exchanger to need frequent cleaning. Based on this, it is necessary to provide a heat exchanger that is easy to disassemble and clean, easy to filter particulate matter, and enhances practicality. Utility Model Content

[0003] The embodiment of the utility model provides a segmented flue gas heat exchanger, which aims to solve the problem that the existing heat exchanger is inconvenient to assemble and disassemble for cleaning.

[0004] To achieve the above-mentioned purpose, the utility model provides a segmented flue gas heat exchanger, comprising a heat exchange component;

[0005] Wherein, the heat exchange assembly includes a first end plate and a second end plate, the upper and lower end surfaces of the second end plate are fixedly connected with a plurality of first flanges, the surfaces of the plurality of first flanges are respectively fixedly connected with a first connecting pipe and a second connecting pipe, a surface of one side of the first end plate is fixedly connected with a plurality of through pipes, the other side surface of the first end plate is fixedly connected with a plurality of second flanges, a plurality of heat exchange plates are connected between the first end plate and the second end plate, a plurality of sealing rings are installed on the surfaces of the plurality of heat exchange plates, a first filter screen and a second filter screen are respectively installed inside the two second connecting pipes, and a flue check valve is installed at the front end of the two second connecting pipes.

[0006] As a preferred solution of the utility model, a plurality of connecting rods are detachably connected between the first end plate and the second end plate, a plurality of first through holes are opened on the surfaces of the first end plate and the second end plate, a plurality of second through holes are opened on the surfaces of the plurality of heat exchange plates, and a plurality of connecting rods are inserted into the inside of the first through holes and the second through holes.

[0007] As a preferred solution of the utility model, both ends of the connecting rod are fixedly connected with bolts, and the side surfaces of the bolts are threadedly connected with nuts.

[0008] As a preferred solution of the utility model, the opposing surfaces of the first end plate and the second end plate are respectively fixedly connected to two first connecting plates and the second connecting plates, one end of the two first connecting plates is fixedly connected to a plug-in rod, one end of the second connecting plate is provided with a plug-in groove, the plug-in rod is plugged into the inside of the plug-in groove, and the surfaces of several of the heat exchange plates are provided with two limiting grooves, and the first connecting plates and the second connecting plates are both plugged into the inside of the limiting grooves.

[0009] As a preferred solution of the utility model, the surface of the heat exchange plate is provided with a plurality of air inlet grooves, the surfaces of the plurality of air inlet grooves are fixedly connected with fixing rings, and the sealing ring is sleeved on the side surface of the fixing ring.

[0010] As a preferred solution of the utility model, an annular groove is provided at the end of the second connecting pipe, and a sealing ring is fixedly connected to one end of the flue check valve, and the sealing ring is inserted into the annular groove.

[0011] As a preferred solution of the present invention, the sealing ring is made of rubber.

[0012] As a preferred solution of the present invention, the heat exchange plate is made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When performing flue gas heat exchange operation, firstly, according to the amount of flue gas, several first connecting pipes and second connecting pipes are inserted into several second flanges on the surface of another section of the second end plate and the inside of the through pipe, so as to connect several groups of heat exchanger structures, and then the flue gas is transported from one of the first connecting pipes into the inside of the through pipe through the flue gas pipeline. At this time, the heat of the flue gas diffuses on the surfaces of several heat exchange plates, and then clean water is transported from another first connecting pipe into the through pipe. At this time, the heat on the surfaces of several heat exchange plates is absorbed by the clean water, and then flows out through the second flange at the lower end. At the same time, the cooled flue gas is discharged from the two second connecting pipes, so as to complete the heat exchange operation. Compared with the heat exchanger structure in the prior art "a segmented flue gas heat exchanger", the utility model can not only quickly connect several groups of heat exchangers through the cooperation of the above structures, so as to assemble and exchange heat according to the amount of flue gas, but also improve the heat exchange efficiency, so as to enhance the versatility of the heat exchanger;

[0015] 2. When performing heat exchange work, impurities in the flue gas can be filtered through the flue check valve, the first filter and the second filter inside the two second connecting pipes, and then the nut is taken out from the side surface of the bolt, so that several connecting rods can be taken out from the first through hole and the second through hole, and then the first end plate, the second end plate and several heat exchange plates can be disassembled. Compared with the heat exchanger in the prior art "a segmented flue gas heat exchanger", the utility model can not only filter particulate matter through the cooperation of the above-mentioned structures, but also disassemble and clean the overall structure, thereby enhancing the practicality of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a disassembled diagram of the first end plate and the second end plate structure of the utility model;

[0018] Figure 3 This is a disassembly diagram of the heat exchange component of the utility model;

[0019] Figure 4 This is a disassembly diagram of the heat exchange plate structure of the utility model;

[0020] Figure 5 This is a disassembled diagram of the filter mechanism structure of the utility model.

[0021] In the figure: 100, heat exchange component; 101, first end plate; 102, second end plate; 103, first flange; 104, first connecting pipe; 105, second connecting pipe; 106, through pipe; 107, second flange; 108, heat exchange plate; 109, sealing ring; 110, first filter; 120, second filter; 130, flue check valve; 111, connecting rod; 112, first through hole; 113, second through hole; 121, bolt; 122, nut; 131, first connecting plate; 132, plug-in rod; 133, second connecting plate; 134, plug-in groove; 135, limit groove; 141, air inlet groove; 142, fixing ring; 151, annular groove; 152, sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides a segmented flue gas heat exchanger, including a heat exchange component 100;

[0024] The heat exchange assembly 100 includes a first end plate 101 and a second end plate 102, and the upper and lower end surfaces of the second end plate 102 are fixedly connected with a plurality of first flanges 103, and the surfaces of the plurality of first flanges 103 are respectively fixedly connected with a first connecting pipe 104 and a second connecting pipe 105, a surface of one side of the first end plate 101 is fixedly connected with a plurality of through pipes 106, and the other side surface of the first end plate 101 is fixedly connected with a plurality of second flanges 107, and a plurality of heat exchange plates 108 are connected between the first end plate 101 and the second end plate 102, and a plurality of sealing rings 109 are installed on the surfaces of the plurality of heat exchange plates 108, and the first filter screen 110 and the second filter screen 120 are respectively installed inside the two second connecting pipes 105, and a flue check valve 130 is installed at the front end of the two second connecting pipes 105.

[0025] In a specific embodiment, the heat exchange assembly 100 is not only simple in structure, but also convenient for quickly assembling several groups of heat exchangers, so as to facilitate heat exchange of different amounts of flue gas, thereby enhancing versatility. At the same time, the overall structure can be disassembled and cleaned as well as particulate matter can be filtered as needed, thereby enhancing practicality. When in use, firstly, according to the amount of flue gas, several first connecting pipes 104 and second connecting pipes 105 on the surface of the second end plate 102 are inserted into several second flanges 107 on the surface of another group of first end plates 101, so that the heat exchanger can be assembled. Then, the flue gas is transported from one of the first connecting pipes 104 into the through pipe 106 through the flue gas duct. At this time, the heat emitted by the flue gas is diffused in several heat exchange plates 10 8 surface, and then clean water is transported from another first connecting pipe 104 into the through pipe 106, so that the heat on the surface of several heat exchange plates 108 is absorbed by the clean water to complete the heat exchange operation, and then flows out through the second flange 107 at the lower end, and the cooled flue gas is discharged from the two second connecting pipes 105, thereby completing the heat exchange operation. At the same time, when the flue gas is discharged from the second connecting pipe 105, the first filter 110 and the second filter 120 cooperate with the flue check valve 130 to filter the particulate matter in the flue gas. When disassembling, only the nut 122 needs to be taken out to disassemble the several connecting rods 111, and then the first end plate 101, the second end plate 102 and the several heat exchange plates 108 can be disassembled and cleaned, thereby enhancing the practicality of the heat exchanger.

[0026] See also Figure 2-Figure 5 A plurality of connecting rods 111 are detachably connected between the first end plate 101 and the second end plate 102, a plurality of first through holes 112 are provided on the surfaces of the first end plate 101 and the second end plate 102, a plurality of second through holes 113 are provided on the surfaces of the plurality of heat exchange plates 108, and the plurality of connecting rods 111 are inserted into the first through holes 112 and the second through holes 113.

[0027] In a specific embodiment, the connecting rod 111 inserted into the first through hole 112 and the second through hole 113 can facilitate the initial assembly of the heat exchanger, and the first end plate 101, the second end plate 102 and the heat exchange plate 108 can be disassembled by taking out the connecting rod 111.

[0028] See also Figure 2-Figure 5 Both ends of the connecting rod 111 are fixedly connected with bolts 121, and the side surface of the bolt 121 is threadedly connected with a nut 122.

[0029] In a specific embodiment, the nut 122 is threadedly connected in the bolt 121 to enhance the overall connection strength of the heat exchanger, and then the heat exchanger can be disassembled by simply removing the nut 122.

[0030] See also Figure 2-Figure 5 The opposite surfaces of the first end plate 101 and the second end plate 102 are respectively fixedly connected with two first connecting plates 131 and the second connecting plates 133, one end of the two first connecting plates 131 is fixedly connected with a plug-in rod 132, one end of the second connecting plate 133 is provided with a plug-in groove 134, and the plug-in rod 132 is plugged into the inside of the plug-in groove 134, and the surfaces of several heat exchange plates 108 are provided with two limiting grooves 135, and the first connecting plate 131 and the second connecting plate 133 are both plugged into the inside of the limiting groove 135.

[0031] In a specific embodiment, the first connecting plate 131 cooperates with the second connecting plate 133 , and the plug-in rod 132 is plugged into the plug-in slot 134 , which can improve the connection stability between the first end plate 101 and the second end plate 102 .

[0032] See also Figure 2-Figure 5 A plurality of air inlet grooves 141 are formed on the surfaces of the plurality of heat exchange plates 108 , and a fixing ring 142 is fixedly connected to the surfaces of the plurality of air inlet grooves 141 . The sealing ring 109 is sleeved on the side surface of the fixing ring 142 .

[0033] In a specific embodiment, the air inlet groove 141 facilitates the connection of the through pipe 106 and the heat exchange operation. The sealing ring 109 cooperates with the fixing ring 142 to enhance the connection sealing between the plurality of heat exchange plates 108, thereby improving the heat exchange efficiency.

[0034] See also Figure 2-Figure 5 An annular groove 151 is formed at the end of the second connecting pipe 105 , and a sealing ring 152 is fixedly connected to one end of the flue check valve 130 , and the sealing ring 152 is inserted into the annular groove 151 .

[0035] In a specific embodiment, inserting the sealing ring 152 into the annular groove 151 can facilitate quick disassembly and assembly of the flue check valve 130 , thereby improving the convenience of disassembly and assembly of the flue check valve 130 .

[0036] See also Figure 2-Figure 5 , the sealing ring 109 is made of rubber.

[0037] In a specific embodiment, the sealing ring 109 made of rubber can further enhance the sealing between the plurality of heat exchange plates 108 .

[0038] See also Figure 2-Figure 5 , the heat exchange plate 108 is made of stainless steel.

[0039] In a specific embodiment, the heat exchange plate 108 made of stainless steel can not only enhance the heat conduction effect, but also prevent rust and extend the service life.

[0040] Working principle: When in use, firstly, insert several first connecting pipes 104 and second connecting pipes 105 on the surface of the second end plate 102 into several second flanges 107 on the surface of another group of first end plates 101, so that several groups of heat exchangers can be assembled, and then the flue gas is transported from one of the first connecting pipes 104 into the through pipe 106 through the flue gas duct, so that the heat emitted by the flue gas is diffused on the surfaces of several heat exchange plates 108, and then the clean water is transported from the other first connecting pipe 104 into the through pipe 106, so that the heat on the surfaces of several heat exchange plates 108 is cleaned. The water absorbs and completes the heat exchange operation, and then flows out through the second flange 107 at the lower end. At the same time, the cooled flue gas is discharged from the two second connecting pipes 105, thereby completing the heat exchange operation. When the flue gas is discharged from the second connecting pipe 105, the first filter 110 and the second filter 120 cooperate with the flue check valve 130 to filter the particulate matter in the flue gas. When disassembling, you only need to take out the nut 122 to disassemble the several connecting rods 111, and then you can disassemble and clean the first end plate 101, the second end plate 102 and the several heat exchange plates 108, thereby enhancing the versatility and practicality of the heat exchanger.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A segmented flue gas heat exchanger, characterized in that: include: A heat exchange assembly (100), the heat exchange assembly (100) comprising a first end plate (101) and a second end plate (102), the upper and lower end surfaces of the second end plate (102) are both fixedly connected to a plurality of first flanges (103), the surfaces of the plurality of first flanges (103) are both respectively fixedly connected to a first connecting pipe (104) and a second connecting pipe (105), a side surface of the first end plate (101) is fixedly connected to a plurality of through pipes (106), the first end plate (101 ) are fixedly connected to the other side surface of the first end plate (101) and the second end plate (102), a plurality of heat exchange plates (108) are connected between the first end plate (101) and the second end plate (102), a plurality of sealing rings (109) are installed on the surfaces of the plurality of heat exchange plates (108), a first filter screen (110) and a second filter screen (120) are installed inside the two second connecting pipes (105), and a flue check valve (130) is installed at the front end of the two second connecting pipes (105).

2. A segmented flue gas heat exchanger according to claim 1, characterized in that: A plurality of connecting rods (111) are detachably connected between the first end plate (101) and the second end plate (102); a plurality of first through holes (112) are provided on the surfaces of the first end plate (101) and the second end plate (102); a plurality of second through holes (113) are provided on the surfaces of the plurality of heat exchange plates (108); and a plurality of connecting rods (111) are inserted into the first through holes (112) and the second through holes (113).

3. A segmented flue gas heat exchanger according to claim 2, characterized in that: Both ends of the plurality of connecting rods (111) are fixedly connected with bolts (121), and the side surfaces of the bolts (121) are threadedly connected with nuts (122).

4. The segmented flue gas heat exchanger according to claim 1, characterized in that: Two first connecting plates (131) and a second connecting plate (133) are fixedly connected to the opposite surfaces of the first end plate (101) and the second end plate (102), respectively; one end of each of the two first connecting plates (131) is fixedly connected to a plug-in rod (132); one end of the second connecting plate (133) is provided with a plug-in groove (134); the plug-in rod (132) is plugged into the inside of the plug-in groove (134); two limiting grooves (135) are provided on the surfaces of a plurality of the heat exchange plates (108); the first connecting plate (131) and the second connecting plate (133) are plugged into the inside of the limiting groove (135).

5. The segmented flue gas heat exchanger according to claim 1, characterized in that: A plurality of air inlet grooves (141) are provided on the surfaces of the plurality of heat exchange plates (108), a fixing ring (142) is fixedly connected to the surfaces of the plurality of air inlet grooves (141), and the sealing ring (109) is sleeved on the side surface of the fixing ring (142).

6. The segmented flue gas heat exchanger according to claim 1, characterized in that: An annular groove (151) is provided at the end of the second connecting pipe (105), and a sealing ring (152) is fixedly connected to one end of the flue check valve (130), and the sealing ring (152) is inserted into the annular groove (151).

7. The segmented flue gas heat exchanger according to claim 1, characterized in that: The sealing ring (109) is made of rubber.

8. The segmented flue gas heat exchanger according to claim 1, characterized in that: The heat exchange plate (108) is made of stainless steel.

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