阅读说明：本技术 一种化工换热器 (Chemical heat exchanger ) 是由 李洁洁 于 2019-10-29 设计创作，主要内容包括：本发明公开了一种化工换热器,包括主壳体,所述主壳体的中部固定有多个换热板,换热板的外侧壁固定在主壳体的内侧壁上,换热板上成型有多个换热通孔,中部输送管插套在所有的换热板的中部通孔中,中部输送管的外侧壁焊接固定在中部通孔的内侧壁上；它在中部输送管的内部设置螺旋轴,使得换热原料可以在中部输送管中增加流动时间,增加换热效果和效率,无需增长中部输水管的长度,大大缩小换热器的体积,降低制造成本。(The invention discloses a chemical heat exchanger, which comprises a main shell, wherein a plurality of heat exchange plates are fixed in the middle of the main shell, the outer side walls of the heat exchange plates are fixed on the inner side walls of the main shell, a plurality of heat exchange through holes are formed in the heat exchange plates, a middle conveying pipe is inserted into the middle through holes of all the heat exchange plates, and the outer side walls of the middle conveying pipes are welded and fixed on the inner side walls of the middle through holes; the spiral shaft is arranged in the middle conveying pipe, so that the flowing time of heat exchange raw materials in the middle conveying pipe can be prolonged, the heat exchange effect and efficiency are improved, the length of the middle water conveying pipe does not need to be increased, the size of the heat exchanger is greatly reduced, and the manufacturing cost is reduced.)

1. A chemical heat exchanger, comprising a main housing (10), characterized in that: a plurality of heat exchange plates (11) are fixed in the middle of the main shell (10), the outer side walls of the heat exchange plates (11) are fixed on the inner side walls of the main shell (10), a plurality of heat exchange through holes (111) are formed in the heat exchange plates (11), the middle conveying pipes (20) are inserted into the middle through holes of all the heat exchange plates (11), and the outer side walls of the middle conveying pipes (20) are welded and fixed on the inner side walls of the middle through holes;

the top end of the middle conveying pipe (20) extends out of a top cover plate (12) fixed at the top of the main shell (10), and the bottom end of the middle conveying pipe (20) extends out of a lower bottom plate (13) fixed at the bottom of the main shell (10);

the middle conveying pipe (20) is internally provided with a spiral shaft (210), and the edge part of a spiral fin of the spiral shaft (210) is close to the inner side wall of the middle conveying pipe (20).

2. The chemical heat exchanger of claim 1, wherein: the heat exchange through holes (111) of two heat exchange plates (11) which are adjacent up and down are staggered up and down.

3. The chemical heat exchanger of claim 1, wherein: screw axis (210) plug bush is in middle part conveyer pipe (20), the upper end and the equal shaping of bottom lateral wall of middle part conveyer pipe (20) have radial connection limit (21), the upper end and the equal shaping of bottom inside wall of middle part conveyer pipe (20) have radial spacing groove (22), the bottom shaping of screw axis (210) has connection end plate (211), it nests in radial spacing groove (22) of the bottom of middle part conveyer pipe (20) to connect end plate (211), the top surface of connecting end plate (211) is pressed the top surface of the radial spacing groove (22) of lower extreme and is passed through bolt fixed connection on middle part conveyer pipe (20), the shaping has a plurality of discharging through hole (212) on connecting end plate (211).

4. The chemical heat exchanger of claim 3, wherein: the spiral shell screwing device is characterized in that an upper connecting end plate (23) is nested in a radial limiting groove (22) at the top end of the middle conveying pipe (20), the upper connecting end plate (23) is fixedly connected to the middle conveying pipe (20) through bolts, a screwing column (24) is formed in the middle of the bottom surface of the upper connecting end plate (23), the screwing column (24) is screwed in a screwing hole formed in the top end of the spiral shaft (210), and a plurality of upper feeding through holes (231) are formed in the upper connecting end plate (23).

5. The chemical heat exchanger of claim 1, wherein: an inner cavity is formed inside the side plate of the main shell (10), and heat insulation materials (1) are filled in the inner cavity.

6. The chemical heat exchanger of claim 1, wherein: the left part of top apron (12) leads to and is connected with air inlet pipe body (2), and the right part of top apron (12) leads to and is connected with air outlet pipe body (3).

7. The chemical heat exchanger of claim 1, wherein: the upper portion of middle part conveyer pipe (20) is inserted and is overlapped at the last middle part through-hole of top apron (12), and the upper portion lateral wall of middle part conveyer pipe (20) is fixed on the inside wall of last middle part through-hole, and the lower part plug bush of middle part conveyer pipe (20) is in the lower middle part through-hole of bottom plate (13), and the lower part lateral wall welded fastening of middle part conveyer pipe (20) is on the inside wall of middle part through-hole down.

Technical Field

The invention relates to the technical field of chemical equipment, in particular to a chemical heat exchanger.

Background

Among the heat exchanger of using in the current chemical industry, it is generally fixed radiating fin or heating panel on the lateral wall of heat transfer inlet pipe, dispels the heat, and the heat transfer inlet pipe can the heat transfer thoroughly in order to guarantee the material of inside flow, and it need be bent the heat transfer inlet pipe and coil to increase the heat transfer effect, its volume that makes heat transfer inlet pipe total length increase, greatly increased heat exchanger.

Disclosure of Invention

The invention aims to provide a chemical heat exchanger aiming at the defects of the prior art, and the spiral shaft is arranged in the middle conveying pipe, so that the flowing time of heat exchange raw materials in the middle conveying pipe can be prolonged, the heat exchange effect and efficiency are improved, the length of the middle water conveying pipe does not need to be increased, the volume of the heat exchanger is greatly reduced, and the manufacturing cost is reduced.

The technical solution of the invention is as follows:

a chemical heat exchanger comprises a main shell, wherein a plurality of heat exchange plates are fixed in the middle of the main shell, the outer side walls of the heat exchange plates are fixed on the inner side walls of the main shell, a plurality of heat exchange through holes are formed in the heat exchange plates, a middle conveying pipe is inserted into the middle through holes of all the heat exchange plates, and the outer side walls of the middle conveying pipes are welded and fixed on the inner side walls of the middle through holes;

the top end of the middle conveying pipe extends out of a top cover plate fixed at the top of the main shell, and the bottom end of the middle conveying pipe extends out of a lower bottom plate fixed at the bottom of the main shell;

the middle conveying pipe is internally provided with a spiral shaft, and the edge part of a spiral fin of the spiral shaft is close to the inner side wall of the middle conveying pipe.

The heat exchange through holes of the two heat exchange plates which are adjacent up and down are staggered up and down.

The screw shaft plug bush is in the middle conveying pipe, the upper end and the bottom outer side wall of the middle conveying pipe are all formed with radial connecting edges, the upper end and the bottom inner side wall of the middle conveying pipe are all formed with radial limiting grooves, the bottom end of the screw shaft is formed with connecting end plates, the connecting end plates are nested in the radial limiting grooves in the bottom end of the middle conveying pipe, the top surfaces of the connecting end plates are pressed against the top surfaces of the radial limiting grooves in the lower end and are fixedly connected onto the middle conveying pipe through bolts, and a plurality of discharging through holes are formed in the connecting end.

The top end plate is connected to the radial spacing groove of the top end of the middle conveying pipe in a nested mode, the top end plate is fixedly connected to the middle conveying pipe through bolts, a threaded connection column is formed in the middle of the bottom face of the top end plate, the threaded connection column is screwed in a threaded connection hole formed in the top end of the spiral shaft, and a plurality of upper feeding through holes are formed in the top end plate.

An inner cavity is formed inside the side plate of the main shell, and heat insulation materials are filled in the inner cavity.

The left part of the top cover plate is communicated with an air inlet pipe body, and the right part of the top cover plate is communicated with an air outlet pipe body.

The upper portion of middle part conveyer pipe is inserted and is overlapped at the last middle part through-hole of top apron, and the upper portion lateral wall of middle part conveyer pipe is fixed on the inside wall of last middle part through-hole, and the lower part plug bush of middle part conveyer pipe is in the lower middle part through-hole of bottom plate, and the lower part lateral wall welded fastening of middle part conveyer pipe is on the inside wall of lower middle part through-hole.

The invention has the beneficial effects that:

the spiral shaft is arranged in the middle conveying pipe, so that the flowing time of heat exchange raw materials in the middle conveying pipe can be prolonged, the heat exchange effect and efficiency are improved, the length of the middle water conveying pipe does not need to be increased, the size of the heat exchanger is greatly reduced, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of a partial structure of the present invention;

fig. 2 is a partially enlarged view of the present invention.

Detailed Description