CN216205543U - Gas-gas plate type heat exchanger - Google Patents
Gas-gas plate type heat exchanger Download PDFInfo
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- CN216205543U CN216205543U CN202122391888.4U CN202122391888U CN216205543U CN 216205543 U CN216205543 U CN 216205543U CN 202122391888 U CN202122391888 U CN 202122391888U CN 216205543 U CN216205543 U CN 216205543U
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Abstract
The utility model discloses a gas-gas plate type heat exchanger, which comprises a heat exchanger core body (2) with heat exchange plates, wherein the heat exchange plates are fixed together in parallel at intervals through studs (8) and pressing plates (7) at two sides; the heat exchange plate sheets are corrugated plates or convex point plates, adjacent corrugated plates support the corrugations through corrugations, and adjacent convex point plates support the convex points through the convex points. The gas-gas plate type heat exchanger is convenient to detach the heat exchange plate for cleaning or replacing, the service life of the heat exchanger is prolonged, and therefore the cost is greatly saved. The utility model is especially suitable for working conditions containing ash and corrosive gas.
Description
Technical Field
The utility model relates to a heat exchanger, in particular to a gas-gas plate type heat exchanger.
Background
In the recovery of the waste heat of the flue gas, dust-containing and corrosive gases are inevitably encountered, and the gases easily cause the blockage or corrosion of a heat exchanger. Once the blockage corrosion occurs, the load of the fan is increased slightly, and the operation cost of the system is increased; and equipment is scrapped and the system cannot operate. On the other hand, gas-gas plate heat exchangers are gradually replacing tubular heat exchangers and are widely applied to various industries due to the advantages of high heat exchange coefficient, small occupied area, low cost and the like. However, the existing gas-gas plate heat exchanger is of an all-welded structure, and when blockage and corrosion occur, the damaged heat exchange plate can not be replaced, effective cleaning is difficult to realize, and only a whole set of replacement is usually performed, so that the cost is increased.
Disclosure of Invention
The purpose of the utility model is as follows: the utility model aims to provide a detachable gas-gas plate type heat exchanger.
The technical scheme is as follows: the gas-gas plate type heat exchanger comprises a heat exchanger core body with heat exchange plates, wherein the heat exchange plates are fixed together in parallel at intervals through studs and pressing plates on two sides.
In the technical scheme, the heat exchange plates are not welded, and the pressing plate is fixed by the studs and the nuts so as to compress the heat exchange plates. Under the working conditions of blockage, dust-containing scaling or corrosion of the heat exchanger, the nuts are detached and the pressing plate is taken away, so that the heat exchange plates can be taken out one by one, or cleaned, or soaked in solution, or replaced.
Furthermore, the heat exchange plate sheets are flat plates, and adjacent flat plates are supported by a supporting structure.
Furthermore, the heat exchange plate sheets are corrugated plates or convex point plates, adjacent corrugated plates support the corrugations through corrugations, and adjacent convex point plates support the convex points through the convex points.
Further, adjacent corrugated plates or convex point plates are supported by a supporting structure.
When the heat exchange plate sheets are flat plates, because the distance between every two adjacent heat exchange plate sheets is large, the cavity of the heat exchanger is easy to deform due to large wind pressure, and the supporting structure is arranged to prevent the heat exchange plate sheets from shaking and colliding, so that the stable operation of the heat exchanger is ensured. For corrugated plates or convex point plates, after the support structure is used, the distance between adjacent heat exchange plates can be further increased, and the applicability is improved. The scheme of the application has no special requirements for the plate type, and the folded edge of the heat exchange plate has no special requirements, so that the applicability is wide. When dealing with the working condition containing dust, the high salient points and the wide channel plate type and the folding edge can be selected so as to facilitate ash removal.
Furthermore, the support structure adopts a sleeve, the sleeve is sleeved on the stud, and the length of the sleeve is matched with the distance between the two heat exchange plates.
Further, sealing gaskets are arranged at two ends of the sleeve, and rigid connection between the sleeve and the plate can be changed into flexible sealing connection through the arrangement of the sealing gaskets. The gas-gas plate heat exchanger allows a certain amount of gas to leak under some working conditions (some drying industries are not so high in cleanliness, such as gypsum board drying and quartz sand drying), and a sealing washer can not be arranged. The sealing washer is arranged to meet the working condition that the sealing requirement is high (the working condition that the requirement on the cleanness degree of air flow at the cold side is high, such as medicine drying and food drying), and the leakage of cold and hot fluid at the through hole of the heat exchange plate is avoided.
Further, the studs are arranged on the heat exchanger core in a triangular shape. The arrangement form can enhance the disturbance of air flow around the through holes and improve the heat exchange strength. The triangular arrangement is more common, and the arrangement of the screw columns can be adjusted according to the pressure (for example, the working pressure of the gas side is 5kpa under some working conditions, the working pressure is 25kpa under some working conditions, the working pressure is different, and the number of the set supporting points is different).
Furthermore, two ends of the stud are fastened through double nuts to ensure the reliability of fixed connection.
Has the advantages that: compared with the prior art, the utility model has the following advantages: 1. the utility model is of a detachable structure, the heat exchange plate pieces are convenient to detach for cleaning or replacing, the service life of the heat exchanger is prolonged, and compared with the existing gas-gas plate type heat exchanger with an all-welded structure, the cost can be greatly saved; 2. the utility model has simple structure, convenient manufacture and low cost; 3. the utility model is especially suitable for working conditions containing ash and corrosive gas.
Drawings
FIGS. 1 to 3 are schematic structural views of the present invention;
FIG. 4 is a schematic structural view of a heat exchanger core of the present invention;
fig. 5 is a sectional view taken along line a-a of fig. 4.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, 4 and 5, the gas-gas plate heat exchanger comprises a heat exchanger core 2, wherein the heat exchanger core 2 comprises a stud 8, two pressing plates 7 and a plurality of heat exchange plates located between the two pressing plates 7. The two pressing plates 7 are provided with a plurality of through holes, the corresponding positions of the heat exchange plates are also provided with through holes, the stud 8 penetrates through the plurality of heat exchange plates and the two pressing plates 7, and the two ends of the stud are fastened through nuts. The adjacent heat exchange plates are supported by the supporting structures 9, the supporting structures 9 can maintain the stable interval between the heat exchange plates, and the deformation of the heat exchange cavity is avoided. The upper end and the lower end of the heat exchanger core body 2 are respectively provided with a second airflow inlet 3 and a second airflow outlet 4, and the left end and the right end of the heat exchanger core body 2 are respectively provided with a first airflow inlet 5 and a first airflow outlet 6. In order to prevent the air flow of the heat exchange core body 2 from leaking, the side surface of the heat exchange core body 2 is also provided with a sealing plate 1, so that the whole heat exchanger is of a box-type structure.
In this embodiment, the supporting structure 9 is a sleeve pipe, and is sleeved on the stud 8. In addition, the two ends of the sleeve are provided with sealing gaskets to prevent leakage among heat exchange gases. The length of the sleeve is determined by the plate spacing determined by thermodynamic calculations. A plurality of studs 8 are arranged in a triangular pattern on the heat exchanger core 2.
The heat exchanger configuration can be adjusted by thermodynamic calculations, providing different first air inlet 5 and first air outlet 6, and adjusting the closing plate 1 accordingly, as shown in fig. 2 and 3.
The heat exchange plate can be a flat plate, a corrugated plate or a convex plate and other plate types, and if the plate type of the heat exchange plate is not suitable for strictly arranging the stud 8 according to a triangle, the position of the through hole can be adaptively adjusted and set, and the correction arrangement is realized.
Claims (6)
1. The utility model provides a gas plate heat exchanger, includes heat exchanger core (2) that have the heat transfer board, its characterized in that: the heat exchange plates are fixed together in parallel at intervals through studs (8) and pressing plates (7) on two sides; the heat exchange plate sheets are corrugated plates or convex point plates, adjacent corrugated plates support the corrugations through corrugations, and adjacent convex point plates support the convex points through the convex points.
2. Gas-gas plate heat exchanger according to claim 1, characterized in that: the adjacent corrugated plates or the convex point plates are also supported by a supporting structure (9).
3. Gas-gas plate heat exchanger according to claim 2, characterized in that: the supporting structure (9) is a sleeve pipe and is sleeved on the stud (8).
4. Gas-gas plate heat exchanger according to claim 3, characterized in that: and sealing gaskets are arranged at two ends of the sleeve.
5. Gas-gas plate heat exchanger according to claim 1, characterized in that: the studs (8) are arranged on the heat exchanger core body (2) in a triangular mode.
6. Gas-gas plate heat exchanger according to claim 1, characterized in that: two ends of the stud (8) are fastened through double nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122391888.4U CN216205543U (en) | 2021-09-30 | 2021-09-30 | Gas-gas plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122391888.4U CN216205543U (en) | 2021-09-30 | 2021-09-30 | Gas-gas plate type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216205543U true CN216205543U (en) | 2022-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122391888.4U Active CN216205543U (en) | 2021-09-30 | 2021-09-30 | Gas-gas plate type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216205543U (en) |
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2021
- 2021-09-30 CN CN202122391888.4U patent/CN216205543U/en active Active
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