High-temperature-resistant plate type gas-gas heat exchanger

Abstract

The high-temperature-resistant plate type gas-gas heat exchanger comprises a plate body, a cold air flow dividing cover and a cold air collecting cover, the cold air flow dividing cover and the cold air collecting cover are installed on the two sides of the plate body, and a hot air collecting groove and a hot air flow dividing groove are formed in the two ends of the interior of the plate body. The heat exchanger has the beneficial effects that during air-air heat exchange, hot air enters the hot air flow dividing groove through the hot air inlet pipe, enters the hot air collecting groove along the hot air channel and is exhausted through the hot air outlet pipe, cold air enters the cold air flow dividing cover through the cold air inlet pipe and enters the cold air channel through the connecting channel, and heat exchange is completed through heat exchange; cold air enters the cold air collecting hood through the connecting channel at the other end and is exhausted through the cold air outlet pipe, the whole heat exchange process is completed, the integrally-arranged plate body is subjected to thermal expansion and cold contraction integrally, leakage caused by thermal expansion and cold contraction is avoided, the sealing performance and the high-temperature-resistant performance are improved, and the working efficiency and the working stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, concretely relates to a high temperature resistant plate type gas gas heat exchanger. BACKGROUND

[0002] The gas gas plate heat exchanger is a kind of high-efficiency heat exchanger formed by a series of metal sheets with certain corrugated shape, thin rectangular channels are formed between various sheets, heat exchange is carried out through sheet, it has the characteristics of high heat exchange efficiency, small heat loss, compact structure, small footprint, wide application, long service life etc., under the condition of same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tube heat exchanger, the footprint is one third of that of tube heat exchanger, and heat recovery rate can be up to 90% or more.

[0003] After searching, it is found that the application No. CN202222407950.9, named a high temperature resistant gas gas plate heat exchanger, the existing gas gas plate heat exchanger, when the temperature of metal sheet is too high, the guide rail and fixing rod connected with it may be deformed by heat, once the fixing rod or guide rail is deformed, it may extrude the metal sheet and cause the air inlet channel on the metal sheet to leak, when heat exchanging some industrial waste gas, the leakage of waste gas not only destroys the ecological environment but also may cause safety accidents, therefore, it is not safe to use, and the high temperature resistance is poor, the upper and lower heat insulation gaskets can prevent the deformation of the upper and lower guide rails caused by the heat transfer of the sealing plate, which affects the movement of the sealing plate and the ventilation back plate on the upper and lower guide rails, the sealing tube is used with the fixed sealing ring and back plate gasket, to prevent heat conduction to the threaded mounting rod and cause the deformation of the threaded mounting rod, realize the overall improvement of high temperature resistance, but the application still adopts the complex splicing form, and the thermal expansion and cold contraction of each component are not synchronized, which reduces the sealing performance, at the same time, the heat insulation gasket or sealing gasket is easy to cause structural change under the condition of long time in high temperature state, which affects the sealing performance and limits the overall high temperature resistance, and the structure is also complex, which can be further improved.

[0004] For the problems in the related art, there is no effective solution at present. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a high temperature resistant plate type gas gas heat exchanger, which has the advantages of good high temperature resistance and simple structure, and solves the problems in the above background art.

[0006] To realize the advantages of good high temperature resistance and simple structure, the utility model adopts the following specific technical solutions:

[0007] The utility model provides a kind of high-temperature-resistant plate type gas-gas heat exchanger, including plate body, cold gas shunt cover and cold gas collecting cover, cold gas shunt cover and cold gas collecting cover are installed on the both sides of the plate body, and hot gas collecting groove and hot gas shunt groove are opened in the both ends of plate body inside, and hot gas passage is opened through between hot gas shunt groove and hot gas collecting groove, cold gas passage is opened between the hot gas passage, connecting passage is welded between the cold gas shunt cover and cold gas collecting cover and plate body, and cold gas passage is connected through connecting passage with cold gas shunt cover and cold gas collecting cover respectively, hot gas inlet pipe is connected through the bottom surface of hot gas shunt groove, hot gas outlet pipe is connected through the top surface of hot gas collecting groove, cold gas inlet pipe is connected through the other side surface of cold gas shunt cover, and cold gas outlet pipe is connected through the other side surface of cold gas collecting cover.

[0008] Further, the outside of the hot gas inlet pipe is fixedly installed with an outer ring seat on the bottom surface of the plate body, an air outlet is formed on the inner side surface of the outer ring seat, and the outer ring seat is connected with the cold gas inlet pipe through a shunt pipe.

[0009] Further, the air outlet is arranged in a ring shape, and the air outlet is arranged in a ring shape.

[0010] Further, the cold gas shunt cover is hollow inside.

[0011] Further, the cold gas collecting cover is hollow inside, and the cold gas collecting cover has the same structure as the cold gas shunt cover.

[0012] Further, the cold gas inlet pipe is arranged along the cold gas shunt cover.

[0013] Further, the cold gas outlet pipe is arranged along the cold gas collecting cover.

[0014] Further, the hot gas passages and the cold gas passages are arranged in multiple groups in an interlaced manner, and the cold gas passages and the hot gas passages are uniformly distributed.

[0015] Compared with the prior art, the utility model provides a kind of high-temperature-resistant plate type gas-gas heat exchanger, with the following beneficial effects:

[0016] (1), the utility model discloses a one-piece plate body and the connecting channel welded with plate body, and the hot gas shunt groove and hot gas collection groove are set up in the both ends of plate body, and the hot gas channel is set up through the hot gas shunt groove and hot gas collection groove, and the cold gas channel is set up in the inside of plate body between the hot gas channel, and the cold gas channel is connected with cold gas shunt cover and cold gas collection cover through connecting channel, when carrying out gas heat exchange, hot gas enters into hot gas shunt groove through hot gas inlet pipe, enters into hot gas collection groove along hot gas channel, and is discharged through hot gas outlet pipe, and cold gas enters into cold gas shunt cover through cold gas inlet pipe, enters into cold gas channel through connecting channel, and completes heat exchange through heat exchange, then, cold gas enters into cold gas collection cover through another end connecting channel, and is discharged through cold gas outlet pipe, and completes the whole heat exchange process, and the plate body of one-piece arrangement carries out thermal expansion and contraction as a whole, and will not leak due to thermal expansion and contraction, improves the sealing property and high temperature resistance, and improves the working efficiency and working stability.

[0017] (2), the utility model discloses a shunt pipe and outer ring seat, and when cold gas enters into cold gas shunt cover, a part enters into outer ring seat through shunt pipe, and blows out along air outlet, and carries out air cooling to hot gas inlet pipe connecting place, reduces the leakage problem of hot gas inlet pipe connecting place due to overheating, and further improves the high temperature resistance. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0019] Figure 1 It is the internal structure schematic diagram of the high-temperature-resistant plate-type gas-gas heat exchanger provided by the utility model,

[0020] Figure 2 It is the top view of the high-temperature-resistant plate-type gas-gas heat exchanger provided by the utility model,

[0021] Figure 3 It is the front view of the high-temperature-resistant plate-type gas-gas heat exchanger provided by the utility model,

[0022] Figure 4 It is the external structure schematic diagram of the high-temperature-resistant plate-type gas-gas heat exchanger provided by the utility model.

[0023] In the drawing,

[0024] 1, plate body; 2, hot gas diversion groove; 3, hot gas collection groove; 4, hot gas channel; 5, cold gas channel; 6, hot gas inlet pipe; 7, hot gas outlet pipe; 8, outer ring seat; 9, air outlet; 10, cold gas inlet pipe; 11, cold gas outlet pipe; 12, cold gas diversion cover; 13, cold gas collection cover; 14, connecting channel; 15, diversion pipe. DETAILED DESCRIPTION

[0025] To further illustrate the embodiments, the utility model provides the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0026] According to the embodiment of the utility model, a high-temperature-resistant plate-type gas-gas heat exchanger is provided.

[0027] The utility model will be further illustrated by combining with the specific embodiment and the drawing, such as Figures 1-4As shown, according to the plate type gas-gas heat exchanger of the utility model embodiment, including plate body 1, cold gas shunt cover 12 and cold gas collecting cover 13, cold gas shunt cover 12 and cold gas collecting cover 13 are installed on both sides of plate body 1, and hot gas collecting groove 3 and hot gas shunt groove 2 are arranged at both ends inside plate body 1, and hot gas passage 4 is arranged through between hot gas shunt groove 2 and hot gas collecting groove 3, cold gas passage 5 is arranged through between hot gas passage 4, connecting passage 14 is welded between cold gas shunt cover 12 and cold gas collecting cover 13 and plate body 1, and cold gas passage 5 is connected through connecting passage 14 with cold gas shunt cover 12 and cold gas collecting cover 13 respectively, hot gas inlet pipe 6 is connected through the bottom surface of hot gas shunt groove 2, hot gas outlet pipe 7 is connected through the top surface of hot gas collecting groove 3, cold gas inlet pipe 10 is connected through the other side surface of cold gas shunt cover 12, cold gas outlet pipe 11 is connected through the other side surface of cold gas collecting cover 13, hot gas shunt groove 2 and hot gas collecting groove 3 are arranged at both ends inside plate body 1, hot gas passage 4 is arranged through between hot gas shunt groove 2 and hot gas collecting groove 3, cold gas passage 5 is arranged inside plate body 1 between hot gas passage 4, cold gas passage 5 is connected through connecting passage 14 with cold gas shunt cover 12 and cold gas collecting cover 13, when gas-gas heat exchange is carried out, hot gas enters hot gas shunt groove 2 through hot gas inlet pipe 6, enters hot gas collecting groove 3 along hot gas passage 4, and is discharged through hot gas outlet pipe 7, cold gas enters cold gas shunt cover 12 through cold gas inlet pipe 10, enters cold gas passage 5 through connecting passage 14, and completes heat exchange through heat exchange, then, cold gas enters cold gas collecting cover 13 through the other end connecting passage 14, is discharged through cold gas outlet pipe 11, and completes the whole heat exchange process, plate body 1 is arranged integrally and expands and shrinks as a whole, and will not leak due to expansion and shrinkage, improves the sealing property and high-temperature resistance, and improves the working efficiency and stability.

[0028] In one embodiment, the outer side of hot gas inlet pipe 6 is fixedly installed with outer ring seat 8 at the bottom surface of plate body 1, the inner side surface of outer ring seat 8 is provided with air outlet 9, and outer ring seat 8 is connected through shunt pipe 15 with cold gas inlet pipe 10, wherein air outlet 9 is arranged in a ring shape, and the air outlet direction of air outlet 9 is opposite to the connection position of hot gas inlet pipe 6, and when cold gas enters cold gas shunt cover 12, a part of the cold gas enters outer ring seat 8 through shunt pipe 15 and is blown out along air outlet 9, so that the connection position of hot gas inlet pipe 6 is air-cooled, the leakage problem caused by overheating of the connection position of hot gas inlet pipe 6 is reduced, and the high-temperature resistance is further improved.

[0029] In one embodiment, the inside of cold gas shunt cover 12 is a hollow structure, wherein the inside of cold gas collecting cover 13 is a hollow structure, and the structure of cold gas collecting cover 13 is the same as that of cold gas shunt cover 12, which facilitates gas shunting and collecting.

[0030] In one embodiment, cold gas inlet pipe 10 is arranged centrally along cold gas shunt cover 12, which improves the shunting uniformity.

[0031] In one embodiment, the cold air outlet pipe 11 is arranged along the center of the cold air collecting cover 13, improving the stability of the exhaust.

[0032] In one embodiment, the hot air channel 4 and the cold air channel 5 are arranged in multiple groups in a staggered manner, and the hot air channel 4 and the cold air channel 5 are uniformly distributed, improving the heat exchange efficiency.

[0033] Working principle:

[0034] In the gas-gas heat exchange process, the hot air enters the hot air distribution groove 2 through the hot air inlet pipe 6, enters the hot air collecting groove 3 along the hot air channel 4, and is discharged through the hot air outlet pipe 7. The cold air enters the cold air distribution cover 12 through the cold air inlet pipe 10, enters the cold air channel 5 through the connecting channel 14, and completes the heat exchange through heat exchange. Subsequently, the cold air enters the cold air collecting cover 13 through the other end connecting channel 14, and is discharged through the cold air outlet pipe 11, completing the entire heat exchange process. The plate body 1 arranged in one body expands and contracts as a whole, and will not leak due to thermal expansion and contraction, improving the sealing performance and high temperature resistance, improving the working efficiency and working stability. At the same time, when the cold air enters the cold air distribution cover 12, a part of it enters the outer ring seat 8 through the distribution pipe 15 and is blown out along the air outlet 9, air-cooling the hot air inlet pipe 6 connection, reducing the leakage problem caused by overheating of the hot air inlet pipe 6 connection, and further improving the high temperature resistance.

[0035] In the present application, unless otherwise specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements, unless otherwise specified, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-temperature resistant plate gas-to-gas heat exchanger, characterized in that, The system includes a plate (1), a cold air distribution hood (12), and a cold air collection hood (13). The plate (1) is equipped with a cold air distribution hood (12) and a cold air collection hood (13) on both sides. The plate (1) has a hot air collection groove (3) and a hot air distribution groove (2) at both ends inside. A hot air channel (4) is provided between the hot air distribution groove (2) and the hot air collection groove (3). A cold air channel (5) is provided between the hot air channels (4). The cold air distribution hood (12) and the cold air collection hood (13) are connected to the plate. (1) A connecting channel (14) is welded between them, and the cold air channel (5) is connected to the cold air distribution hood (12) and the cold air collection hood (13) through the connecting channel (14). The bottom surface of the hot air distribution groove (2) is connected to the hot air inlet pipe (6), the top surface of the hot air collection groove (3) is connected to the hot air outlet pipe (7), the other side surface of the cold air distribution hood (12) is connected to the cold air inlet pipe (10), and the other side surface of the cold air collection hood (13) is connected to the cold air outlet pipe (11).

2. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The outer ring seat (8) is fixedly installed on the bottom surface of the plate (1) on the outside of the hot air inlet pipe (6), and an air outlet (9) is opened on the inner surface of the outer ring seat (8). The outer ring seat (8) is connected to the cold air inlet pipe (10) through the diversion pipe (15).

3. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 2, characterized in that, The air outlet (9) is arranged in a ring, and the air outlet (9) is directed to the connection of the hot air inlet pipe (6).

4. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The interior of the cold air distribution shroud (12) is a hollow structure.

5. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The cold air collection hood (13) has a hollow structure inside, and the cold air collection hood (13) has the same structure as the cold air diversion hood (12).

6. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The cold air inlet pipe (10) is arranged centrally along the cold air distribution hood (12).

7. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The cold air outlet pipe (11) is arranged centrally along the cold air collection hood (13).

8. A high-temperature resistant plate gas-to-gas heat exchanger according to claim 1, characterized in that, The hot air passage (4) and cold air passage (5) are arranged in multiple sets, and the cold air passage (5) and hot air passage (4) are evenly distributed.

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