CN218155667U - Plate type heat exchanger - Google Patents
Plate type heat exchanger Download PDFInfo
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- CN218155667U CN218155667U CN202222055480.4U CN202222055480U CN218155667U CN 218155667 U CN218155667 U CN 218155667U CN 202222055480 U CN202222055480 U CN 202222055480U CN 218155667 U CN218155667 U CN 218155667U
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- heat exchanger
- plate heat
- cold medium
- pipeline
- water outlet
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Abstract
The utility model discloses a plate heat exchanger, it still is provided with discharge valve on cold medium inflow pipeline, and this discharge valve is located between the cold medium inlet valve that sets up on the cold medium inflow pipeline and the plate heat exchanger body, and the phenomenon such as the slab compression degree that plate heat exchanger appears after the installation is insufficient, adhesive tape extrusion deformation can be overcome in this discharge valve's setting.
Description
Technical Field
The utility model belongs to the technical field of heat transfer device, concretely relates to plate 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 an ideal device for heat exchange of liquid-liquid and liquid-vapor.
The detachable plate heat exchanger is formed by a plurality of punched corrugated thin plates at certain intervals, the peripheries of the punched corrugated thin plates are sealed by rubber strips, and the punched corrugated thin plates are overlapped and compressed by a frame and a compression screw, four corner holes of the plate and the rubber strips form a fluid distribution pipe and a fluid collection pipe, and simultaneously, cold and hot fluids are reasonably separated to flow in flow channels on two sides of each plate respectively to carry out heat exchange through the plate. As shown in fig. 1, which shows a schematic structural diagram of a detachable plate heat exchanger, four corner holes of a plate heat exchanger body 1 (including a plate and a sealing rubber strip) are respectively connected with a fluid distribution pipe and a fluid collection pipe, and the plate heat exchanger body includes a steam inflow pipeline, and a steam inlet, a steam inlet valve 3 and an exhaust valve 2 are arranged on the pipeline; a hot water outlet pipe, wherein a hot water outlet and a hot water outlet valve 4 are arranged on the pipe; a cold medium inflow pipe provided with a cold medium inlet and a cold medium inlet valve 6; and a condensate outflow conduit provided with a condensate outlet and a condensate outlet valve 5.
The plate heat exchanger runs for half a year to one year, the phenomena of rubber strip aging and corrosion damage can occur, the phenomena of leakage, liquid leakage and plate scaling of the plate heat exchanger can be seriously caused, and the running effect of the plate heat exchanger is directly influenced.
In order to prolong the service life of the plate heat exchanger, the clamping bolt is disassembled every year to be decomposed and overhauled, the sealing rubber strips are replaced, the plate sheets are cleaned, and after the overhauling and cleaning are finished, the clamping bolt is screwed down to recover the operation. But in the recovery process, the phenomena of insufficient compaction degree, extrusion deformation of rubber strips and the like are very easy to occur, the use effect is directly influenced, and the service life of the plate heat exchanger is shortened.
SUMMERY OF THE UTILITY MODEL
To problem one or more that exist among the prior art, the utility model provides a plate heat exchanger, it still is provided with second discharge valve on cold medium inflow pipeline, second discharge valve is located between the cold medium inlet valve that sets up on the cold medium inflow pipeline and the plate heat exchanger body.
The plate heat exchanger comprises:
the plate type heat exchanger comprises a plate type heat exchanger body, a heat exchanger core and a heat exchanger core, wherein the plate type heat exchanger body comprises a plurality of rectangular plate sheets which are overlapped and compressed, sealing rubber strips are positioned on the periphery of the rectangular plate sheets, and corner holes are formed in four corners of the plate type heat exchanger body; the steam inflow pipeline, the hot water outflow pipeline, the cold medium inflow pipeline and the condensed water outflow pipeline are respectively communicated with the four corner holes; wherein:
a steam inlet, a steam inlet valve and an exhaust valve are arranged on the steam inflow pipeline;
a hot water outlet and a hot water outlet valve are arranged on the hot water outlet pipeline;
a cold medium inlet and a cold medium inlet valve are arranged on the cold medium inflow pipeline;
a condensed water outlet and a condensed water outlet valve are arranged on the condensed water outlet pipeline.
Plate heat exchanger based on that above technical scheme provided still is provided with second discharge valve on cold medium inflow pipeline, and this discharge valve is located between cold medium inlet valve and the plate heat exchanger body that the cold medium inflow pipeline set up, and this discharge valve can be opened to the setting of this discharge valve when installing plate heat exchanger, destroys airtight space under the maintenance state, and the air between the slab gets into the pipeline along with the runner when screwing up clamping bolt in, discharges through this discharge valve. The air stress can be effectively eliminated by the arrangement, the installation effect of the plate heat exchanger is guaranteed, meanwhile, the impact and the influence on the plate heat exchanger caused by the gas storage phenomenon in the pipeline in the running process can be well avoided, and the service life of the plate heat exchanger is prolonged.
Drawings
Fig. 1 is a schematic view of a plate heat exchanger according to the prior art;
fig. 2 is a schematic structural diagram of a plate heat exchanger according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided by way of examples and accompanying drawings, which are provided for understanding the present invention and are not intended to limit the present invention.
As shown in fig. 1, which shows a schematic structural diagram of a plate heat exchanger in the prior art, the plate heat exchanger includes a plate heat exchanger body 1, which includes a plurality of overlapped and compressed rectangular plates and sealing rubber strips located on the periphery, and corner holes are opened at four corners of the plate heat exchanger body 1; the steam inflow pipeline, the hot water outflow pipeline, the cold medium inflow pipeline and the condensed water outflow pipeline are respectively communicated with the four corner holes; wherein: a steam inlet, a steam inlet valve 3 and an exhaust valve 2 are arranged on the steam inflow pipeline; a hot water outlet and a hot water outlet valve 4 are arranged on the hot water outlet pipeline; a cold medium inlet and a cold medium inlet valve 6 are arranged on the cold medium inflow pipeline; a condensed water outlet and a condensed water outlet valve 5 are arranged on the condensed water outlet pipeline.
In order to prolong the service life of the plate heat exchanger shown in figure 1, the clamping bolt is disassembled every year to be decomposed and overhauled, a sealing rubber strip is replaced, and a plate sheet is cleaned. But in the recovery process, the phenomena of insufficient compression degree, extrusion deformation of rubber strips and the like easily occur, the use effect is directly influenced, and the service life of the plate heat exchanger is shortened. The inventor finds out through research and analysis that certain stress is generated when the clamping bolt is screwed when the plate heat exchanger shown in fig. 1 is installed, and the stress is increased along with the tightening of the clamping bolt, and the stress is the main reason of insufficient compression and extrusion deformation of the rubber strip.
After analysis, the stress is mainly generated due to the compression of air in the plate heat exchanger. The cold medium inflow pipeline of the plate heat exchanger is in a medium state under normal conditions, and air existing in the system is in a closed state. The compression of the sheets changes the air volume between the sheets from V to 1/3-1/4V, the generated pressure is gradually increased from P to 3-4P according to the formula PV = nRT, and the generated stress is increased from F to 3-4F. The existence of stress can lead to the plate heat exchanger slab degree of compression can't form good airtight runner, and this stress can make joint strip skew channel simultaneously, reduces sealed effect.
As shown in fig. 2, the inventor modifies the existing plate heat exchanger, and arranges a second exhaust valve 7 'on the cold medium inflow pipe of the plate heat exchanger, and arranges the second exhaust valve 7' between the cold medium inlet valve 6 'arranged on the cold medium inflow pipe and the plate heat exchanger body 1'. Namely, the plate heat exchanger provided by the utility model can comprise a plate heat exchanger body 1', which comprises a plurality of overlapped and compacted rectangular plates and sealing rubber strips positioned around, and angle holes are arranged at four corners of the plate heat exchanger body 1'; the steam inflow pipeline, the hot water outflow pipeline, the cold medium inflow pipeline and the condensed water outflow pipeline are respectively communicated with the four corner holes; wherein: a steam inlet, a steam inlet valve 3 'and a first exhaust valve 2' are arranged on the steam inflow pipeline; a hot water outlet and a hot water outlet valve 4' are arranged on the hot water outlet pipeline; a cold medium inlet and a cold medium inlet valve 6' are arranged on the cold medium inflow pipeline; a condensate outlet and a condensate outlet valve 5' are arranged on the condensate outflow pipeline.
The utility model discloses install second discharge valve 7' additional on cold medium gets into the pipeline, open this second discharge valve 7' during installation plate heat exchanger, can destroy the airtight space under the maintenance state, in the air between the slab can get into the cold medium entering pipeline along with the runner when screwing up clamping bolt, discharge through second discharge valve 7 '. The air stress can be effectively eliminated by the arrangement, the installation effect of the plate heat exchanger is guaranteed, meanwhile, the impact and the influence on the plate heat exchanger caused by the gas storage phenomenon in the pipeline in the running process can be well avoided, and the service life of the plate heat exchanger is prolonged.
When using the utility model provides a plate heat exchanger, according to plate heat exchanger's different running state, go on according to the operating method that table 1 below shows.
Table 1:
finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. A plate heat exchanger, characterized in that the plate heat exchanger is further provided with a second exhaust valve (7 ') on the cold medium inflow conduit, said second exhaust valve (7') being located between a cold medium inlet valve (6 ') provided on the cold medium inflow conduit and the plate heat exchanger body (1').
2. A plate heat exchanger according to claim 1, comprising:
the plate heat exchanger comprises a plate heat exchanger body (1 '), a heat exchanger core and a plurality of heat exchangers, wherein the plate heat exchanger body (1 ') comprises a plurality of overlapped and compacted rectangular plates and sealing rubber strips positioned on the periphery of the plate heat exchanger body, and corner holes are formed in four corners of the plate heat exchanger body (1 '); the steam inflow pipeline, the hot water outflow pipeline, the cold medium inflow pipeline and the condensed water outflow pipeline are respectively communicated with the four corner holes; wherein:
the steam inflow pipeline is provided with a steam inlet, a steam inlet valve (3 ') and a first exhaust valve (2');
a hot water outlet and a hot water outlet valve (4') are arranged on the hot water outlet pipeline;
a cold medium inlet and a cold medium inlet valve (6') are arranged on the cold medium inflow pipeline;
a condensed water outlet and a condensed water outlet valve (5') are arranged on the condensed water outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222055480.4U CN218155667U (en) | 2022-08-05 | 2022-08-05 | Plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222055480.4U CN218155667U (en) | 2022-08-05 | 2022-08-05 | Plate type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218155667U true CN218155667U (en) | 2022-12-27 |
Family
ID=84598616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222055480.4U Active CN218155667U (en) | 2022-08-05 | 2022-08-05 | Plate type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218155667U (en) |
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2022
- 2022-08-05 CN CN202222055480.4U patent/CN218155667U/en active Active
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