阅读说明：本技术 一种钎焊板式换热器 (Brazing plate type heat exchanger ) 是由 何光全 于 2021-07-21 设计创作，主要内容包括：本发明涉及换热器技术领域,具体涉及一种钎焊板式换热器,钎焊板式换热器包括钎焊单元、换热单元和复合板,钎焊单元设置于换热单元的中心处,复合板则设置于钎焊单元的两侧,且与钎焊板契合；钎焊单元由若干钎焊板组成,每个钎焊板均包括密封胶垫、换热板体和输料板体,输料板体设置于换热板体的上下两侧,且均与换热板体固定连接,密封胶垫则环绕换热板体设置,且与换热板体胶接,通过调节钎焊板的结构,从而有效提升钎焊单元的密封性,进而有效解决现有技术中存在的载热介质容易泄漏的问题。(The invention relates to the technical field of heat exchangers, in particular to a brazed plate heat exchanger which comprises a brazing unit, a heat exchange unit and composite plates, wherein the brazing unit is arranged at the center of the heat exchange unit, and the composite plates are arranged on two sides of the brazing unit and are matched with brazing plates; the unit of brazing comprises a plurality of brazing sheet, every brazing sheet all includes sealed cushion, the heat transfer plate body and defeated material plate body, defeated material plate body sets up in the upper and lower both sides of heat transfer plate body, and all with heat transfer plate body fixed connection, sealed cushion then encircles the setting of heat transfer plate body, and splices with the heat transfer plate body, through the structure of adjusting the brazing sheet to effectively promote the leakproofness of the unit of brazing, and then effectively solve the problem that the heat-carrying medium that exists leaks easily among the prior art.)

1. A brazed plate heat exchanger is characterized in that,

the brazing plate type heat exchanger comprises a brazing unit, a heat exchange unit and composite plates, wherein the brazing unit is arranged at the center of the heat exchange unit, and the composite plates are arranged on two sides of the brazing unit and are matched with the brazing plate;

the unit of brazing comprises a plurality of brazing sheets, every the brazing sheet all includes sealed cushion, heat transfer plate body and defeated material plate body, defeated material plate body set up in the upper and lower both sides of heat transfer plate body, and all with heat transfer plate body fixed connection, sealed cushion then encircles the heat transfer plate body sets up, and with the heat transfer plate body splices.

2. A brazed plate heat exchanger according to claim 1,

the heat exchange plate body comprises a first medium plate and a second medium plate, the first medium plate is arranged on the upper side of the second medium plate and fixedly connected with the second medium plate, and the second medium plate is connected with the adjacent heat exchange plate body in a clamping mode.

3. A brazed plate heat exchanger according to claim 2,

the first medium plate is provided with a first medium channel, a first feeding hole, a first flow guide channel and a first discharge hole, the first medium channel is spirally arranged on the inner side of the first medium plate, the first feeding hole penetrates through the first medium plate and is communicated with the heat exchange unit, the first flow guide channel is respectively arranged between the first medium channel and the first feeding hole, the first flow guide channel is further connected with the first discharge hole and the first medium channel, and the first discharge hole is communicated with the second medium plate.

4. A brazed plate heat exchanger according to claim 3,

the second medium plate is provided with a second medium channel, a second feeding hole, a second flow guide channel, a second discharge hole and clamping protrusions, the second medium channel is spirally arranged on the inner side of the second medium plate, the second feeding hole is communicated with the first discharge hole, the second feeding hole is arranged on the lower side of the first discharge hole, the second discharge hole is connected with the heat exchange unit, and the clamping protrusions are matched with the composite plate and arranged on two sides of the second medium plate.

5. A brazed plate heat exchanger according to claim 1,

the heat exchange unit comprises a support, two clamping plates and a cross beam, the support is arranged on two sides of the brazing unit and is communicated with the brazing unit through the two clamping plates respectively, and the cross beam is arranged on the upper side of the brazing unit and is connected with the two clamping plates in a sliding mode.

6. A brazed plate heat exchanger according to claim 5,

each clamping plate is provided with a clamping bolt, a fluid angle hole and a fit groove, the clamping bolt is arranged on two sides of the clamping plate, the fluid angle hole is arranged on the upper side of the clamping plate and communicated with the brazing unit, the fit groove is arranged on the upper side of the clamping plate, and the fit groove is fit with the cross beam.

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a brazed plate heat exchanger.

Background

Heat exchangers, as a means of transferring heat from one heat carrying medium to another, have a wide range of uses in various industrial fields;

the heat exchanger in the prior art mostly adopts a brazing plate type structure, and the problem that the brazing plate type heat exchanger is easy to leak heat-carrying media due to the fact that the brazing plates are not tightly connected in the using process is found.

Disclosure of Invention

The invention aims to provide a brazed plate heat exchanger, which aims to solve the problem that a heat-carrying medium is easy to leak in the brazed plate heat exchanger in the prior art.

In order to achieve the purpose, the invention provides a brazing plate type heat exchanger which comprises a brazing unit, a heat exchange unit and composite plates, wherein the brazing unit is arranged at the center of the heat exchange unit, and the composite plates are arranged at two sides of the brazing unit and are matched with brazing plates;

the unit of brazing comprises a plurality of brazing sheets, every the brazing sheet all includes sealed cushion, heat transfer plate body and defeated material plate body, defeated material plate body set up in the upper and lower both sides of heat transfer plate body, and all with heat transfer plate body fixed connection, sealed cushion then encircles the heat transfer plate body sets up, and with the heat transfer plate body splices.

The brazing plates are mutually attached and tightly matched, so that the sealing performance of heat-carrying media in the whole heat exchanger is improved, and the structural characteristics of the heat exchange plate body and the material conveying plate body are utilized, so that the sealing performance of the heat exchanger is further improved.

The heat exchange plate body comprises a first medium plate and a second medium plate, the first medium plate is arranged on the upper side of the second medium plate and fixedly connected with the second medium plate, and the second medium plate is connected with the adjacent heat exchange plate body in a clamping mode.

And the first medium plate is matched with the second medium plate, so that heat exchange among different heat carrying media is realized.

The first medium plate is provided with a first medium channel, a first feeding hole, a first flow guide channel and a first discharge hole, the first medium channel is spirally arranged on the inner side of the first medium plate, the first feeding hole penetrates through the first medium plate and is communicated with the heat exchange unit, the first flow guide channel is respectively arranged between the first medium channel and the first feeding hole, the first flow guide channel is further connected with the first discharge hole and the first medium channel, and the first discharge hole is communicated with the second medium plate.

The first medium channel is used for conveying heat-carrying media, and heat exchange is realized through the matching of the first guide channel and the first discharge hole.

The second medium plate is provided with a second medium channel, a second feeding hole, a second flow guide channel, a second discharge hole and clamping protrusions, the second medium channel is spirally arranged on the inner side of the second medium plate, the second feeding hole is communicated with the first discharge hole, the second feeding hole is arranged on the lower side of the first discharge hole, the second discharge hole is connected with the heat exchange unit, and the clamping protrusions are matched with the composite plate and arranged on two sides of the second medium plate.

And the second medium channel is used for conveying another heat carrying medium, so that the heat exchange between the two heat carrying media is realized.

The heat exchange unit comprises a support, two clamping plates and a cross beam, the support is arranged on two sides of the brazing unit and communicated with the brazing unit through the two clamping plates respectively, and the cross beam is arranged on the upper side of the brazing unit and connected with the two clamping plates in a sliding mode.

The cross beam is supported by the bracket, and the tightness of the heat exchange unit is further improved by the clamping plate.

Each clamping plate is provided with a clamping bolt, a fluid angle hole and a fit groove, the clamping bolt is arranged on two sides of the clamping plate, the fluid angle hole is arranged on the upper side of the clamping plate and communicated with the brazing unit, the fit groove is arranged on the upper side of the clamping plate, and the fit groove is fit with the cross beam.

The clamping bolt is used for auxiliary control of the plate spacing of the clamping plate, and the fluid angle holes convey heat carrying media.

According to the brazing plate type heat exchanger, the structure of the brazing plate is adjusted, so that the sealing performance of a brazing unit is effectively improved, and the problem that a heat-carrying medium is easy to leak in the prior art is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic axial view of a brazed plate heat exchanger according to the present invention.

Fig. 2 is a schematic cross-sectional structural view of a brazed plate heat exchanger provided by the present invention.

Fig. 3 is a schematic axial structure diagram of a brazing unit of a brazed plate heat exchanger provided by the invention.

Fig. 4 is a schematic axial structure diagram of a brazing plate of a brazed plate heat exchanger provided by the invention.

Fig. 5 is a schematic axial structure diagram of a composite plate of a brazed plate heat exchanger according to the present invention.

1-brazing unit, 2-heat exchange unit, 3-composite plate, 11-brazing plate, 12-sealing rubber gasket, 13-heat exchange plate, 14-material conveying plate, 131-first medium plate, 132-second medium plate, 1311-first medium channel, 1312-first material inlet, 1313-first flow guide channel, 1314-first discharge hole, 1321-second medium channel, 1322-second material inlet, 1323-second flow guide channel, 1324-second discharge hole, 1325-clamping protrusion, 21-bracket, 22-clamping plate, 23-beam, 221-clamping bolt, 222-fluid angle hole, 223-clamping groove, 2211-screw rod, 2212-nut, 231-beam, 232-slide rail and 31-matching protrusion, 32-snap groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 5, the invention provides a brazed plate 11 type heat exchanger, where the brazed plate 11 type heat exchanger includes a brazing unit 1, a heat exchange unit 2 and a composite plate 3, the brazing unit 1 is disposed at the center of the heat exchange unit 2, and the composite plate 3 is disposed at two sides of the brazing unit 1 and is engaged with the brazed plate 11;

brazing unit 1 comprises a plurality of brazing sheet 11, every brazing sheet 11 all includes sealed cushion 12, heat transfer plate body 13 and defeated material plate body 14, defeated material plate body 14 set up in heat transfer plate body 13's upper and lower both sides, and all with heat transfer plate body 13 fixed connection, sealed cushion 12 then encircles heat transfer plate body 13 sets up, and with heat transfer plate body 13 splices.

In this embodiment, the brazing unit 1 is used for heat exchange, the heat exchange unit 2 is used for supporting each component, the composite plate 3 further improves the sealing performance of the brazing unit 1, the brazing plates 11 are abutted against each other to form the brazing unit 1 for heat exchange, the sealing rubber gasket 12 is used for improving the sealing performance between the brazing plates 11, the heat exchange plate body 13 is used for heat exchange between heat-carrying media, and the material conveying plate body 14 is used for conveying the heat-carrying media.

Further, the heat exchange plate body 13 includes a first dielectric plate 131 and a second dielectric plate 132, the first dielectric plate 131 is disposed on the upper side of the second dielectric plate 132 and is fixedly connected to the second dielectric plate 132, and the second dielectric plate 132 is clamped to the adjacent heat exchange plate body 13;

the first medium plate 131 is provided with a first medium channel 1311, a first material inlet 1312, a first flow guide channel 1313 and a first outlet 1314, the first medium channel 1311 is spirally arranged at the inner side of the first medium plate 131, the first material inlet 1312 penetrates through the first medium plate 131 and is communicated with the heat exchange unit 2, the first flow guide channel 1313 is respectively arranged between the first medium channel 1311 and the first material inlet 1312, the first flow guide channel 1313 is further connected with the first outlet 1314 and the first medium channel 1311, and the first outlet is communicated with the second medium plate 132;

the second medium plate 132 has a second medium channel 1321, a second material inlet 1322, a second flow guide channel 1323, a second discharge hole 1324 and a clamping protrusion 1325, the second medium channel 1321 is spirally arranged on the inner side of the second medium plate 132, the second material inlet 1322 is communicated with the first discharge hole 1314, the second material inlet 1322 is arranged on the lower side of the first discharge hole 1314, the second discharge hole 1324 is connected with the heat exchange unit 2, and the clamping protrusion 1325 is engaged with the composite plate 3 and arranged on two sides of the second medium plate 132.

In this embodiment, the first medium plate 131 and the second medium plate 132 are matched with each other to realize heat exchange of different heat carrier mediums, the first medium channel 1311 is matched with the first material inlet 1312 to input one heat carrier medium into the first medium plate 131, and discharge the heat carrier medium from the first discharge hole 1314 after heat exchange with another heat carrier medium, the first flow guide channel 1313 is used to convey the heat carrier medium into the first medium channel 1311, the second medium plate 132, the second material inlet 1322, the second flow guide channel 1323 and the second output hole are matched with another heat carrier medium, and the clamping protrusion 1325 is matched with the composite plate 3 to further improve the overall sealing performance of the brazing unit 1.

Further, the heat exchange unit 2 comprises a support 21, two clamping plates 22 and a cross beam 23, the support 21 is arranged on two sides of the brazing unit 1 and is respectively communicated with the brazing unit 1 through the two clamping plates 22, and the cross beam 23 is arranged on the upper side of the brazing unit 1 and is in sliding connection with the two clamping plates 22;

each clamping plate 22 is provided with a clamping bolt 221, a fluid angle hole 222 and a fitting groove 223, the clamping bolt 221 is arranged on two sides of the clamping plate 22, the fluid angle hole 222 is arranged on the upper side of the clamping plate 22 and is communicated with the brazing unit 1, the fitting groove 223 is arranged on the upper side of the clamping plate 22, and the fitting groove 223 is fitted with the cross beam 23;

the clamping bolt 221 includes a screw 2211 and a nut 2212, the screw 2211 is disposed along the horizontal direction and is engaged with the clamping plate 22, and the nut 2212 is sleeved on two ends of the screw 2211 and is engaged with the screw 2211.

In this embodiment, the bracket 21 is used to support each component, the clamping plate 22 is used to improve the sealing performance of the brazing unit 1, the cross beam 23 is used to cooperate with the clamping plate 22 to adjust the plate distance between the two clamping plates 22, the clamping bolt 221 is used to assist in controlling the distance between the two clamping plates 22, the fluid angle hole 222 is used to cooperate to input and output different heat transfer media, the cooperating groove 223 is used to cooperate with the cross beam 23, and the screw 2211 is used to adjust the distance between the clamping plates 22 under the action of the nut 2212.

Further, the composite board 3 has a plurality of matching protrusions 31 and a plurality of clamping grooves 32, the clamping grooves 32 are correspondingly engaged with the clamping protrusions 1325 one by one and are all arranged on one side of the composite board 3 close to the brazing unit 1, and the matching protrusions 31 are abutted against the first dielectric plate 131;

the cross beam 23 includes a beam 231 and a slide rail 232, the beam 231 is connected to the bracket 21, and the slide rail 232 is disposed at the lower side of the beam 231 and slidably connected to the clamping plate 22.

In this embodiment, the engaging protrusion 31 is configured to abut against the first dielectric plate 131, the engaging groove 32 is configured to engage with the second dielectric plate 132, so as to assist in improving the sealing performance of the brazing unit 1 when necessary, and the beam 231 is configured to provide the sliding rail 232 and realize sliding connection with the clamping plate 22 by using the sliding rail 232.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.