CN219368502U

CN219368502U - Double-wall plate type heat exchanger

Info

Publication number: CN219368502U
Application number: CN202223136522.3U
Authority: CN
Inventors: 黄勇; 承佳
Original assignee: Furfa Jiangsu Heat Exchange Equipment Manufacturing Co ltd
Current assignee: Furfa Jiangsu Heat Exchange Equipment Manufacturing Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-07-18
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to a double-wall plate type heat exchanger, which comprises a fixed compression plate, wherein an upper guide rod is fixedly arranged at the top end of the rear side of the fixed compression plate through a bolt, a lower guide rod is fixedly arranged at the bottom of the rear side of the fixed compression plate through a bolt, guide rod brackets are fixedly arranged at the ends of the upper guide rod and the lower guide rod through bolts, a plate and a movable compression plate are inserted between the upper guide rod and the lower guide rod, the plate comprises a first single plate and a second single plate, a sealing rubber cushion is fixedly arranged on the plate, and the sealing rubber cushion comprises a base and an adhesive tape. According to the double-wall plate type heat exchanger, the structures of the plate and the sealing rubber strip are improved, so that the situation that fluid is mixed with each other in the heat exchange process to cause pollution or harmful reaction is avoided, the rubber strip can be independently replaced, the maintenance is convenient, the double-channel sealing is realized, the sealing effect is good, and the whole service life is prolonged.

Description

Double-wall plate type heat exchanger

Technical Field

The utility model relates to the technical field of plate heat exchangers, in particular to a double-wall plate type heat exchanger.

Background

The plate heat exchanger is a high-efficiency heat exchanger formed by stacking a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between the various plates through which heat is exchanged. The plate heat exchanger is ideal equipment for liquid-liquid and liquid-vapor heat exchange. The heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application, long service life and the like. Under the same pressure loss, the heat transfer coefficient is 3-5 times higher than that of the tubular heat exchanger, the occupied area is one third of that of the tubular heat exchanger, and the heat recovery rate can be up to more than 90%.

Sealing is realized through joint strip between the inside slab of current plate heat exchanger, but the sealed effect of joint strip is limited in the in-service use, can often appear leaking etc. in case leak, two kinds of fluid in the heat exchange process can intermix, lead to pollution or produce the condition emergence of harmful reaction, be not applicable to the application occasion that the health requirement is higher or industrial production fail safe nature is high, and current joint strip is the integral type structure, can only change whole joint strip totally when needs change, can't maintain, the waste of resource has been caused.

Therefore, there is a need for a double-walled plate heat exchanger that is safe and facilitates replacement of the adhesive strips.

Disclosure of Invention

The utility model aims to overcome the defects and provide the double-wall plate type heat exchanger with high safety and convenience in rubber strip replacement.

The purpose of the utility model is realized in the following way:

the utility model provides a double-walled board type heat exchanger, includes fixed pressure strip, the top of fixed pressure strip rear side is through bolt fixed mounting there being upper guide arm, the bottom of fixed pressure strip rear side is through bolt fixed mounting there being lower guide arm, upper guide arm and lower guide arm's tip is through bolt fixed mounting there being the guide arm support, peg graft between upper guide arm and the lower guide arm and install slab and activity pressure strip, the slab includes first veneer and second veneer, fixed mounting has sealed cushion on the slab, sealed cushion includes base and adhesive tape, the slab passes through fixed pressure strip with the activity pressure strip presss from both sides tightly fixedly, the both sides of fixed pressure strip and activity pressure strip are fixed through fastening bolt and nut.

Preferably, the back side of the first single board is buckled and clamped with the front side of the second single board, and four corners of the first single board and the second single board are respectively provided with a through hole.

Preferably, the through holes around between the first veneer and the second veneer are sealed by a flat gasket.

Preferably, a groove is formed in the outer side of the through hole in the second single plate, and the flat gasket is embedded and installed in the inner side of the groove.

Preferably, the base is embedded and installed at the front side of the first single board, hooks are arranged around the base, and the base is clamped and fixed with the edge of the rear side of the second single board through the hooks.

Preferably, the clamping groove is formed in the surface of the base, the clamping strip is arranged at the bottom of the adhesive tape, and the adhesive tape is inserted and installed in the clamping groove through the clamping strip at the bottom.

Preferably, the cross section of the clamping groove is an inverted T-shaped strip groove, the lower part of the clamping strip is of a rectangular plate-shaped structure with two semicircular ends, the upper part of the clamping strip is of two rectangular strips which are symmetrically distributed, and the clamping strip is clamped with the clamping groove.

Preferably, the side wall of the adhesive tape is provided with a side adhesive tape, and the side adhesive tape is wrapped on the inner side wall of the base.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the double-wall plate type heat exchanger, the rear side of the first single plate and the front side of the second single plate are buckled and clamped together, and the through holes are sealed through the flat gasket, so that once leakage occurs, fluid flows out from the flow channel between the two single plates to the outside, and is easily found and measures are taken, and the situation that the fluids are mutually mixed in the heat exchange process to cause pollution or generate harmful reaction is avoided;

2. according to the double-wall plate type heat exchanger, the clamping groove is formed in the surface of the base, the adhesive tape is inserted and installed in the clamping groove through the clamping strip at the bottom, the sealing adhesive tape is designed to be of a split type structure, the adhesive tape can be independently replaced, the maintenance is convenient, the clamping connection firmness between the base and the clamping strip is strong, and the operation is convenient;

3. according to the double-wall plate type heat exchanger, the side adhesive tape is arranged on the side wall of the adhesive tape and wrapped on the inner side wall of the base, and the side adhesive tape, the adhesive tape and the base simultaneously play a role in sealing, so that double-channel sealing is realized, the sealing effect is good, and meanwhile, the whole service life is prolonged.

Drawings

Fig. 1 is a schematic perspective view of a double-walled plate heat exchanger according to the present utility model.

Fig. 2 is a schematic view of an exploded plate structure of a double-walled plate heat exchanger according to the present utility model.

Fig. 3 is a schematic diagram of a second single-plate explosion structure of a double-plate heat exchanger according to the present utility model.

Fig. 4 is a schematic diagram of an explosion structure of a seal gasket of a double-walled plate heat exchanger according to the present utility model.

Fig. 5 is a schematic view showing a partial sectional structure of a seal gasket of a double-walled plate heat exchanger according to the present utility model.

Fig. 6 is an enlarged schematic view of the structure of fig. 3 at a.

Fig. 7 is an enlarged schematic view of the structure at B in fig. 4.

Wherein: the fixing and pressing plate comprises a fixing and pressing plate 1, an upper guide rod 2, a lower guide rod 3, a guide rod support 4, a plate 5, a first single plate 5.1, a second single plate 5.2, a through hole 5.3, a groove 5.4, a flat gasket 5.5, a sealing rubber cushion 6, a base 6.1, a clamping groove 6.2, a hook 6.3, a rubber strip 6.4, a clamping strip 6.5, a side rubber strip 6.6, a movable pressing plate 7 and a fastening bolt 8.

Description of the embodiments

Referring to fig. 1 to 7, the double-walled plate heat exchanger according to the present utility model includes a fixed compression plate 1, an upper guide rod 2 and a lower guide rod 3 are respectively located at the top and bottom of the rear side of the fixed compression plate 1, the plate 5 and the movable compression plate 7 play a role in supporting and guiding, a guide rod bracket 4 is installed at the ends of the upper guide rod 2 and the lower guide rod 3, and is fixed by bolts, so as to ensure the stability of the upper guide rod 2 and the lower guide rod 3, a set of plates 5 are inserted between the upper guide rod 2 and the lower guide rod 3, the plates 5 include a first single plate 5.1 and a second single plate 5.2, which are corrugated metal plates, the rear side of the first single plate 5.1 and the front side of the second single plate 5.2 are buckled and clamped together, a through hole 5.3 is formed at each of four corners, the through holes 5.3 are formed between the first single plate 5.1 and the second single plate 5.2, once leakage occurs, fluid flows out from the two single plates to the outside through a flow channel, and is easily found and measures are taken, so that the heat exchange fluid is mixed with each other, and the situation of the heat exchange fluid is mixed, resulting in the occurrence of the mutual pollution is prevented, and the through holes 5.5.5.5.5 are formed, and the through the grooves 5.5.5.5 are easily embedded in the groove, and the groove is installed, and the groove is convenient for installing on the outside 5.5.

The sheet 5 is sealed and separated by the sealing rubber cushion 6, the sealing rubber cushion 6 adopts a split structure, the split type structure comprises a base 6.1 and a rubber strip 6.4, a clamping groove 6.2 is formed in the surface of the base 6.1, the rubber strip 6.4 is connected with the base 6.1 into a whole through the clamping strip 6.5 at the bottom in a plugging manner, the rubber strip 6.4 can be replaced independently, the maintenance is convenient, the base 6.1 is embedded and mounted on the front side of the first veneer 5.1, and the base 6.1 is fixed through the clamping of the edges of the peripheral hooks 6.3 and the rear side of the second veneer 5.2.

The fixed compression plate 1 and the movable compression plate 7 are fixed through a plurality of groups of fastening bolts 8 and nuts on two sides, so that the inner plate 5 is tightly pressed together through the movable compression plate 7 and the movable compression plate 7.

As shown in fig. 5, in order to further improve the overall sealing performance, a side adhesive tape 6.6 is arranged on the side wall of the adhesive tape 6.4, the side adhesive tape 6.6 is wrapped on the inner side wall of the base 6.1, and the side adhesive tape 6.6 and the base 6.1 simultaneously play a role in sealing, so that double sealing is realized, the sealing effect is good, and meanwhile, the overall service life is prolonged.

Further, as shown in fig. 5, the cross section of the clamping groove 6.2 is a strip-shaped groove with an inverted T shape, the lower part of the clamping strip 6.5 is a rectangular plate-shaped structure with two semicircular ends, the upper part of the clamping strip is two rectangular strips symmetrically distributed, the clamping strip 6.5 is clamped with the clamping groove 6.2, the connection firmness is strong, and the operation is convenient.

The utility model relates to a double-wall plate type heat exchanger, which has the working principle that: when the device operates, fluid enters through two holes on the fixed compression plate 1 into through holes 5.3 at four corners of the plate 5, two fluids flow in a flow channel between the plate 5 and exchange heat through the plate 5, and then flow out from the other two holes on the fixed compression plate 1, as the plate 5 is formed by buckling and clamping the first single plate 5.1 and the second single plate 5.2, and the through holes 5.3 at four corners are sealed through the flat gasket 5.5, once leakage occurs, the fluid flows out from the flow channel between the two single plates to the outside, and is easy to find and take measures, so that the situation that pollution or harmful reaction occurs due to mutual mixing of the fluids in the heat exchange process is avoided, and the sealing rubber cushion 6 is designed into a split structure and is formed by splicing the rubber strip 6.4 and the base 6.1, so that the rubber strip 6.4 can be replaced independently and is convenient to maintain, and the side rubber strip 6.6 is arranged on the side wall of the rubber strip 6.4, and is wrapped on the inner side wall of the base 6.1, thus the sealing effect is realized, and the sealing effect is prolonged simultaneously, and the whole sealing life is realized.

In addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.

Claims

1. A double-walled plate heat exchanger, characterized by: including fixed pressure strip (1), the top of fixed pressure strip (1) rear side is through bolt fixed mounting has upper guide arm (2), the bottom of fixed pressure strip (1) rear side is through bolt fixed mounting has lower guide arm (3), upper guide arm (2) and lower guide arm (3)'s tip is through bolt fixed mounting has guide arm support (4), peg graft between upper guide arm (2) and lower guide arm (3) and install slab (5) and activity pressure strip (7), slab (5) include first veneer (5.1) and second veneer (5.2), fixed mounting has sealed cushion (6) on slab (5), sealed cushion (6) include base (6.1) and adhesive tape (6.4), slab (5) are through fixed pressure strip (1) with the both sides of activity pressure strip (7) are through fastening bolt (8) and nut fixation.

2. A double-walled plate heat exchanger according to claim 1 wherein: the rear side of the first single board (5.1) is buckled and clamped with the front side of the second single board (5.2), and four corners of the first single board (5.1) and the second single board (5.2) are respectively provided with a through hole (5.3).

3. A double-walled plate heat exchanger according to claim 1 or 2, wherein: and the through holes (5.3) around the first veneer (5.1) and the second veneer (5.2) are sealed by a flat gasket (5.5).

4. A double-walled plate heat exchanger according to claim 3 wherein: the groove (5.4) is formed in the outer side of the through hole (5.3) in the second single plate (5.2), and the flat gasket (5.5) is embedded and mounted in the inner side of the groove (5.4).

5. A double-walled plate heat exchanger according to claim 1 or 2, wherein: the base (6.1) is embedded and installed on the front side of the first single board (5.1), hooks (6.3) are arranged around the base (6.1), and the base (6.1) is clamped and fixed with the edge of the rear side of the second single board (5.2) through the hooks (6.3).

6. A double-walled plate heat exchanger according to claim 1 wherein: clamping grooves (6.2) are formed in the surface of the base (6.1), clamping strips (6.5) are arranged at the bottoms of the rubber strips (6.4), and the rubber strips (6.4) are inserted and installed in the clamping grooves (6.2) through the clamping strips (6.5) at the bottoms.

7. A double-walled plate heat exchanger according to claim 6 wherein: the cross section of the clamping groove (6.2) is a strip-shaped groove with an inverted T shape, the lower part of the clamping strip (6.5) is of a rectangular plate-shaped structure with two semicircular ends, the upper part of the clamping strip is of two rectangular strips which are symmetrically distributed, and the clamping strip (6.5) is clamped with the clamping groove (6.2).

8. A double-walled plate heat exchanger according to claim 1 or 6, wherein: the side wall of the adhesive tape (6.4) is provided with a side adhesive tape (6.6), and the side adhesive tape (6.6) is wrapped on the inner side wall of the base (6.1).