CN213388636U - Spiral plate type heat exchanger for alcohol fermentation - Google Patents

Abstract

The utility model discloses a spiral plate type heat exchanger for alcohol fermentation, which comprises a spiral plate type heat exchanger main body, wherein the interior of the spiral plate type heat exchanger main body is divided into a hot cavity and a cold cavity; the end part of the spiral plate type heat exchanger main body connected with the conical guide cylinder is a buffer cavity; the net sheets are fixed at the high-temperature mash inlet pipe, the low-temperature cooling water outlet pipe and the open end of the conical guide cylinder. The earlier grow of the cross-sectional area of buffering cavity along the rivers direction, the back diminishes, when the water hammer flows along with high temperature mash or low temperature water, the cross-sectional area increase of buffering cavity, the velocity of flow slows down, the water hammer also can slow down, most water hammer has been eliminated, and the water hammer that does not eliminate also can be broken up and eliminated when passing through the net piece, avoid the impact of water hammer to spiral plate, toper guide cylinder and pipeline, reduce the injury of water hammer to equipment, the life of extension spiral plate heat exchanger.

Description

Spiral plate type heat exchanger for alcohol fermentation

The technical field is as follows:

the utility model relates to a chemical industry cooling arrangement field, concretely relates to spiral plate heat exchanger is used in alcohol fermentation.

Background art:

in the production process of alcohol, the water consumption is large, the water consumption is up to dozens of tons per 1 ton of alcohol, and the other three quarters except for one quarter of the water used for process ingredients are almost all used for cooling materials, such as mash cooling, yeast and fermented mash cooling, and alcohol distillation condensation and cooling. At present, when alcohol is produced on a large scale, the spiral plate type heat exchanger is compact in structure and high in heat transfer efficiency, and can realize complete countercurrent, so that the spiral plate type heat exchanger is preferentially used for cooling high-temperature mash.

But in the in-service use process, in order to ensure that the incrustation scale can not be produced in the spiral plate heat exchanger, the velocity of flow of low-temperature cooling water and high-temperature mash is all very fast, and need carry out continuous opening according to the technological requirement and stop, sneak into air or vapor in addition easily, produce the water hammer easily, cause the impact to spiral plate heat exchanger main part and pipeline junction, two spiral plates that can make the spiral plate heat exchanger main part for a long time crack with the welding seam of lateral wall, cause the damage of spiral plate heat exchanger, the unable maintenance of the spiral plate heat exchanger of damage, can only abandon.

The utility model has the following contents:

an object of the utility model is to provide an increase of service life's spiral plate heat exchanger for alcohol fermentation.

The utility model discloses by following technical scheme implement:

a spiral plate type heat exchanger for alcohol fermentation comprises a spiral plate type heat exchanger main body, wherein the interior of the spiral plate type heat exchanger main body is divided into a hot cavity and a cold cavity; the outer surface of the spiral plate type heat exchanger main body is provided with a high-temperature mash outlet pipe and a low-temperature cooling water inlet pipe, the high-temperature mash outlet pipe and the low-temperature cooling water inlet pipe are respectively arranged along the outer surface tangential direction of the spiral plate type heat exchanger main body, and the high-temperature mash outlet pipe and the low-temperature cooling water inlet pipe are both communicated with the hot cavity and the cold cavity through conical guide cylinders; a high-temperature mash inlet pipe and a low-temperature cooling water outlet pipe which are communicated with the hot cavity and the cold cavity are respectively arranged on two sides of the spiral plate type heat exchanger main body;

the end part of the spiral plate type heat exchanger main body connected with the conical guide cylinder is a buffer cavity;

and meshes are fixed at the high-temperature mash inlet pipe, the low-temperature cooling water outlet pipe and the open end of the conical guide cylinder.

Preferably, the outer wall of the buffer cavity is communicated with a nozzle, and the nozzle is tangentially arranged along the outer surface of the spiral plate type heat exchanger main body.

The utility model has the advantages that: the earlier grow of the cross-sectional area of buffering cavity along the rivers direction, the back diminishes, when the water hammer flows along with high temperature mash or low temperature water, the cross-sectional area increase of buffering cavity, the velocity of flow slows down, the water hammer also can slow down, most water hammer has been eliminated, and the water hammer that does not eliminate also can be broken up and eliminated when passing through the net piece, avoid the impact of water hammer to spiral plate, toper guide cylinder and pipeline, reduce the injury of water hammer to equipment, the life of extension spiral plate heat exchanger.

Description of the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a sectional view a-a of fig. 2.

In the figure: the spiral plate type heat exchanger comprises a spiral plate type heat exchanger body 1, a spiral plate 1.1, a hot cavity 1.2, a cold cavity 1.3, a buffer cavity 1.4, a high-temperature mash inlet pipe 2, a high-temperature mash outlet pipe 3, a low-temperature cooling water inlet pipe 4, a low-temperature cooling water outlet pipe 5, a conical guide cylinder 6, a mesh 7 and a nozzle 8.

The specific implementation mode is as follows:

as shown in fig. 1 to 3, a spiral plate heat exchanger for alcohol fermentation comprises a spiral plate heat exchanger main body 1, wherein the interior of the spiral plate heat exchanger main body 1 is divided into a hot cavity 1.2 and a cold cavity 1.3; a high-temperature mash outlet pipe 3 and a low-temperature cooling water inlet pipe 4 are arranged on the outer surface of the spiral plate type heat exchanger main body 1, the high-temperature mash outlet pipe 3 and the low-temperature cooling water inlet pipe 4 are respectively arranged along the outer surface tangential direction of the spiral plate type heat exchanger main body 1, and the high-temperature mash outlet pipe 3 and the low-temperature cooling water inlet pipe 4 are both communicated with a hot cavity 1.2 and a cold cavity 1.3 through conical guide cylinders 6; a high-temperature mash outlet pipe 3 and a low-temperature cooling water inlet pipe 4 which are communicated with a hot cavity 1.2 and a cold cavity 1.3 are respectively arranged on two sides of the spiral plate type heat exchanger main body 1;

the end part of the spiral plate type heat exchanger main body 1 connected with the conical guide cylinder 6 is a buffer cavity 1.4;

the net sheets 7 are fixed at the high-temperature mash inlet pipe 2, the low-temperature cooling water outlet pipe 5 and the open ends of the conical guide cylinders 6;

when the device is used, low-temperature water enters the cold cavity 1.3 from the low-temperature cooling water inlet pipe 4, the low-temperature cooling water enters the cold cavity 1.3 under the guidance of the conical guide cylinder 6, before entering the cold cavity 1.3, the low-temperature cooling water passes through the net piece 7, the water hammer generated in a pipeline is separated by the net piece 7 and immediately enters the buffer cavity 1.4 for buffering, and the low-temperature water enters the cold cavity 1.3 after the water hammer is eliminated;

and high-temperature mash enters the hot cavity 1.2 from the high-temperature mash inlet pipe 2, the water hammer is separated through the mesh 7 and enters the hot cavity 1.2, the high-temperature mash in the hot cavity 1.2 and low-temperature water in the cold cavity 1.3 generate heat displacement, the temperature of the high-temperature mash is reduced, when the high-temperature mash flows in the hot cavity 1.2, water flow still gathers to form the water hammer, the high-temperature mash enters the buffer cavity 1.4 for buffering before flowing out of the hot cavity 1.2, the generated water hammer is separated through the mesh 7, and finally the high-temperature mash is collected through the conical guide cylinder 6 and discharged from the high-temperature mash outlet pipe 3, so that the impact of the high-temperature mash on the conical guide cylinder 6 and the high-temperature mash outlet pipe 3 is reduced, and the damage of the water hammer to equipment is reduced.

The cross-sectional area of the buffer cavity 1.4 along the water flow direction is increased firstly and then decreased, when the water hammer flows along with the high-temperature mash or the low-temperature water, the cross-sectional area of the buffer cavity 1.4 is increased, the flow speed is slowed, and the water hammer is also slowed, so most of the water hammer is eliminated, and the water hammer which is not eliminated is also scattered and eliminated when passing through the mesh 7.

The outer wall of the buffer cavity body 1.4 is communicated with a nozzle 8, the nozzle 8 is arranged along the tangential direction of the outer surface of the spiral plate type heat exchanger body 1, when cleaning is carried out, high-pressure water or cleaning liquid can be sprayed into the hot cavity 1.2 or the cold cavity 1.3 by the aid of the nozzle 8, and due to the fact that the nozzle 8 is arranged along the tangential direction, substances attached to the spiral plate 1.1 can be washed away when cleaning is carried out, and scale is prevented from being formed after accumulation.

In practical use, the hot cavity 1.2 and the cold cavity 1.3 can not be separated, and the functions of the hot cavity 1.2 and the cold cavity 1.3 can be exchanged.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. The utility model provides an alcohol fermentation is with spiral plate heat exchanger which characterized in that: the spiral plate type heat exchanger comprises a spiral plate type heat exchanger main body, wherein the interior of the spiral plate type heat exchanger main body is divided into a hot cavity and a cold cavity; the outer surface of the spiral plate type heat exchanger main body is provided with a high-temperature mash outlet pipe and a low-temperature cooling water inlet pipe, the high-temperature mash outlet pipe and the low-temperature cooling water inlet pipe are respectively arranged along the outer surface tangential direction of the spiral plate type heat exchanger main body, and the high-temperature mash outlet pipe and the low-temperature cooling water inlet pipe are both communicated with the hot cavity and the cold cavity through conical guide cylinders; a high-temperature mash inlet pipe and a low-temperature cooling water outlet pipe which are communicated with the hot cavity and the cold cavity are respectively arranged on two sides of the spiral plate type heat exchanger main body;

the end part of the spiral plate type heat exchanger main body connected with the conical guide cylinder is a buffer cavity;

and meshes are fixed at the high-temperature mash inlet pipe, the low-temperature cooling water outlet pipe and the open end of the conical guide cylinder.

2. A spiral plate heat exchanger for alcohol fermentation according to claim 1, wherein: the outer wall of the buffer cavity is communicated with a nozzle, and the nozzle is arranged tangentially along the outer surface of the spiral plate type heat exchanger main body.

Images