CN217465464U

CN217465464U - Spiral plate heat exchanger

Info

Publication number: CN217465464U
Application number: CN202221475278.0U
Authority: CN
Inventors: 王晓元; 周家泉
Original assignee: Suzhou City Jinxiang Pressure Container Manufacture Co ltd
Current assignee: Suzhou City Jinxiang Pressure Container Manufacture Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-20
Anticipated expiration: 2032-06-13

Abstract

The utility model provides a spiral plate heat exchanger, including the barrel, the spiral plate, heat medium runner and material runner, the heat medium export, the comdenstion water pipe, the buffer tube that the axial was dissected and is vertically set up along upper and lower direction, through making the dissection face of buffer tube connect on the lateral wall of barrel and cover the heat medium export, make the inner wall of buffer tube apart from the farthest distance of heat medium export be greater than the twice of comdenstion water pipe diameter, end connection closure plate about the buffer tube, set up the through-hole that is used for connecting the comdenstion water pipe on one of them closure plate, make the end face that the closure plate is close to the barrel lateral wall be connected with the barrel lateral wall, can enough ensure the sufficiency of heat exchange and reduce the energy waste through the heat medium export that the opening is less, can slow down the velocity of flow of the comdenstion water that flows from the heat medium export again through the buffer tube inner wall, the closure plate is to the lateral wall, the buffer chamber that the barrel lateral wall encloses, the impact on the condensate water guide pipe and the spiral plate close to the heat medium outlet is reduced, the leakage is avoided, the reliability is good, and the service life is long.

Description

Spiral plate heat exchanger

Technical Field

The utility model relates to a heat exchange equipment technical field, concretely relates to spiral plate heat exchanger.

Background

The spiral plate heat exchanger is a common heat exchange device, generally comprising a cylinder, a spiral plate arranged in the cylinder, a heat medium flow passage and a material flow passage which are enclosed by the spiral plate, and a heat medium inlet and outlet and a material inlet and outlet which are connected on the cylinder, for example, Chinese patents CN215491230U, CN201653206U disclose the spiral plate heat exchanger, but most of the heat medium outlets of the spiral plate heat exchanger are arranged at the bottom of the side wall of the cylinder, and are connected with vertically arranged condensed water guide pipes, so as to facilitate the discharge of condensed water condensed by cooling steam, the pipe diameter of the condensed water guide pipes is determined according to the flow of the condensed water, because the pressure of steam at the upper part of the heat medium flow passage is larger, the condensed water at the lower part is not compressible, the size of the opening of the heat medium outlet is very difficult to control, the opening is too large, a large amount of condensed water can pass through quickly, the flow rate of the steam in the heat medium flow passage is fast, and the heat exchange is not sufficient, the energy waste is big, and this opening undersize will increase the impact force of comdenstion water, frequently strikes down, can destroy the sealed effect of comdenstion water pipe and barrel welding part with higher speed, causes outer hourglass, and the impact force of comdenstion water still can reverse action on being close to the spiral plate of heat medium exit, destroys the sealed effect of spiral plate, causes interior hourglass for the operational reliability of whole spiral plate heat exchanger is not good, life is short.

Disclosure of Invention

The utility model aims at overcoming the shortcoming of prior art, provide a spiral plate heat exchanger that the heat exchange is abundant, the energy waste is little, good reliability, long service life.

In order to achieve the above object, the utility model provides a technical scheme is, spiral plate heat exchanger, include: the device comprises a cylinder body, a spiral plate arranged in the cylinder body, a heat medium flow passage and a material flow passage which are enclosed by the spiral plate, a heat medium outlet arranged at the bottom of the side wall of the cylinder body, and a condensed water guide pipe communicated with the heat medium outlet;

spiral plate heat exchanger still includes the buffer tube that the axial was dissected, the section face of buffer tube is connected on the lateral wall of barrel and cover the heat medium export, the vertical setting of upper and lower direction is followed to the buffer tube, the inner wall of buffer tube is apart from the furthest distance of heat medium export is greater than the twice of comdenstion water pipe diameter, the upper and lower end connection of buffer tube has the closing plate, one of them is seted up on the closing plate and is used for connecting the through-hole of comdenstion water pipe, the closing plate is close to the terminal surface of barrel lateral wall with the barrel lateral wall is connected, makes the buffer tube inner wall of closing plate side in opposite directions the barrel lateral wall encloses into and is used for slowing down the cushion chamber of the velocity of flow of the comdenstion water that the heat medium export flows.

Preferably, the axial centerline of the buffer tube is located outside of the thermal medium outlet.

Further preferably, the distance of the buffer tube inner wall from the cutting plane is greater than or equal to two thirds of the tube diameter of the buffer tube.

Further preferably, the condensate conduit is located below the buffer tube and is vertically disposed in an up-down direction.

Further preferably, the axis of the condensate conduit is located on the side of the buffer tube axis remote from the heating medium outlet.

Preferably, the edge of the cutting plane is spaced apart from the edge of the heat medium outlet.

Further preferably, the edge of the cutting plane is welded and connected with the side wall of the cylinder.

Preferably, the heating medium outlet is rectangular.

Further preferably, the height of the heat medium outlet in the vertical direction is equal to or less than the length of the heat medium outlet in the circumferential direction of the cylinder.

Further preferably, still be equipped with on the barrel with material outlet and row's cinder notch that the material runner is linked together, the material outlet set up in the bottom of barrel, the row's cinder notch is set up in the lateral wall of barrel and is located the opposite side of heat medium export.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

Drawings

Fig. 1 is an enlarged partial sectional view of a heating medium outlet in the prior art.

Fig. 2 is a schematic front view of the preferred embodiment of the present invention, showing only the lower half of the cylinder, and showing a section view for easy observation.

Fig. 3 is a schematic top view of fig. 2, with spacing and sealing structures between the spiral plates omitted.

Fig. 4 is an enlarged partial cross-sectional view at a in fig. 3.

Fig. 5 is a schematic left side view of the media outlet of fig. 2.

Wherein: 10. a barrel; 11. a side wall; 12. a material outlet; 13. a slag discharge port; 20. a spiral plate; 30. a heating medium flow passage; 40. a material flow passage; 50. a heating medium outlet; 60. a condensed water conduit; 70. a buffer tube; 71. cutting into a section; 72. a closing plate; 73. a through hole; 74. a buffer chamber.

Detailed Description

The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the scope of the present invention.

The up-down direction described in the present invention refers to the up-down direction in fig. 2.

As shown in fig. 2 to 5, the utility model provides a spiral plate heat exchanger, include: a cylinder 10, a spiral plate 20 arranged in the cylinder 10, a heat medium flow passage 30 and a material flow passage 40 enclosed by the spiral plate 20, a heat medium outlet 50 arranged at the bottom of the side wall 11 of the cylinder 10, a condensed water conduit 60 communicated with the heat medium outlet 50, a buffer tube 70 which is axially cut and vertically extends along the vertical direction, the cutting surface 71 of the buffer tube 70 is welded and connected to the side wall 11 of the cylinder 10 and covers the heat medium outlet 50, the farthest distance between the inner wall of the buffer tube 70 and the heat medium outlet 50 is greater than twice the pipe diameter of the condensed water guide pipe 60, the upper end and the lower end of the buffer tube 70 are welded and connected with the closing plates 72, through holes for connecting the condensed water guide pipe 60 are formed in the closing plates 72 at the lower end of the buffer tube 70, the end face, close to the side wall 11 of the cylinder 10, of the closing plates 72 is welded and connected with the side wall 11 of the cylinder 10, and a buffer cavity 74 for reducing the flow rate of condensed water flowing out of the heat medium outlet 50 is surrounded by the inner wall of the buffer tube 70, the inner wall of the opposite side of the closing plates 72 and the side wall 11 of the cylinder 10.

The advantage that sets up like this lies in, can enough guarantee the sufficiency of heat exchange and reduce energy waste through the less heat medium export of opening, can slow down the velocity of flow of the comdenstion water that flows from the heat medium export through the cushion chamber that buffer tube inner wall, closing plate lateral inner wall, barrel lateral wall enclose again, reduces the impact to the comdenstion water pipe and be close to heat medium exit spiral plate, avoids leaking, good reliability, long service life.

In this embodiment, the axial centerline of buffer tube 70 is located outside of heating medium outlet 50, and the distance from the inside wall of buffer tube 70 to cut plane 71 is greater than or equal to two-thirds of the undissected frontal tube diameter of buffer tube 70.

Condensate conduit 60 is located below buffer tube 70 and is vertically disposed in the up-down direction, and the axial center line of condensate conduit 60 is located on the side of the axial center line of buffer tube 70 remote from heating medium outlet 50.

In order to further enhance the sealing effect between buffer tube 70 and sidewall 11 of barrel 10 and avoid leakage, in this embodiment, the edge of cutting plane 71 is spaced from the edge of heating medium outlet 50, and the edge of cutting plane 71 is welded to sidewall 11 of barrel 10.

To facilitate welding there, in the present embodiment, the heat medium outlet 50 is rectangular, and the height of the heat medium outlet 50 in the up-down direction is equal to or less than the length of the heat medium outlet 50 in the circumferential direction of the cylinder 10.

In order to facilitate the material to enter and exit and the slag discharge, in the embodiment, the cylinder 10 is further provided with a material outlet 12 and a slag discharge port 13 which are communicated with the material flow passage 40, the material outlet 12 is opened at the bottom of the cylinder 10, and the slag discharge port 13 is opened at the side wall 11 of the cylinder 10 and is located at the opposite side of the heat medium outlet 50.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A spiral plate heat exchanger comprises a cylinder body, a spiral plate arranged in the cylinder body, a heat medium flow passage and a material flow passage which are enclosed by the spiral plate, a heat medium outlet arranged at the bottom of the side wall of the cylinder body, and a condensed water guide pipe communicated with the heat medium outlet;

the method is characterized in that:

2. A spiral plate heat exchanger according to claim 1, wherein: the axial lead of the buffer tube is positioned outside the heating medium outlet.

3. A spiral plate heat exchanger according to claim 2, wherein: the distance between the inner wall of the buffer tube and the cutting plane is more than or equal to two thirds of the tube diameter of the buffer tube.

4. A spiral plate heat exchanger according to claim 2, wherein: the condensate water conduit is located below the buffer tube and is vertically arranged along the up-down direction.

5. A spiral plate heat exchanger according to claim 4, wherein: and the axial lead of the condensed water guide pipe is positioned on one side of the axial lead of the buffer pipe, which is far away from the heat medium outlet.

6. A spiral plate heat exchanger according to claim 1, wherein: the edge of the cutting plane is spaced from the edge of the heat medium outlet.

7. A spiral plate heat exchanger according to claim 6, wherein: the edge of the cutting surface is welded with the side wall of the cylinder.

8. A spiral plate heat exchanger according to claim 1, wherein: the heat medium outlet is rectangular.

9. A spiral plate heat exchanger as recited in claim 8 wherein: the height of the heat medium outlet in the vertical direction is less than or equal to the length of the heat medium outlet in the circumferential direction of the cylinder.

10. A spiral plate heat exchanger according to any one of claims 1 to 9, wherein: still be equipped with on the barrel with material outlet and row's cinder notch that the material runner is linked together, the material outlet set up in the bottom of barrel, the row's cinder notch is set up in the lateral wall of barrel and be located the opposite side of heat medium export.