CN210636077U

CN210636077U - Electrolyte cooling system

Info

Publication number: CN210636077U
Application number: CN201921342675.9U
Authority: CN
Inventors: 邓天祥
Original assignee: Yongzhou Ruixiang Zinc Material Co Ltd
Current assignee: Yongzhou Ruixiang Zinc Material Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-29
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses an electrolyte cooling system, including electrolysis trough (1), high temperature electrolyte pipe (2), low temperature electrolyte pipe (23), cooling device (10), high temperature water pipe (9), low temperature water pipe (14), high temperature electrolyte and cooling water carry out the heat exchange back at heat exchanger, and the temperature control condition that the electrolyte cooling is effectual, and can satisfy electrolysis production completely.

Description

Electrolyte cooling system

Technical Field

The utility model relates to an electrolyte cooling system.

Background

The original electrolyte cooling system adopts a conventional open-type cooling tower, electrolyte is conveyed to the top of the tower by a circulating pump, and the electrolyte flows into an electrolytic cell after being cooled by blowing by a high-power fan in the natural falling process of the electrolyte by utilizing height drop.

The open type cooling tower has large occupied area, high manufacturing cost and high maintenance cost. The distance between the pipeline and the launder connected with the electrolyte is too long, so the electrolyte is easy to run, overflow, drip and leak in the circulating cooling process, and in addition, the open cooling is adopted, partial sulfuric acid mist is evaporated along with moisture, on one hand, the peripheral equipment is corroded, on the other hand, the peripheral air is polluted, and the smell is large. The temperature reduction effect is poor, the temperature of the electrolytic cell is maintained between 44 ℃ and 46 ℃ at normal temperature, the best electrolytic effect cannot be achieved, particularly, the temperature of the electrolytic cell is increased, violent reaction can occur, the electrolytic cell burns a plate, and a negative plate does not absorb zinc and continuously returns to be dissolved during electrolysis.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the electrolyte cooling system has the advantages of good electrolysis cooling effect, low manufacturing cost, corrosion resistance, no odor and no pollution, and can completely meet the temperature control conditions of electrolysis production.

For solving the technical problem, the utility model discloses a technical scheme is:

an electrolyte cooling system comprises an electrolytic cell, a high-temperature electrolyte pipe, a low-temperature electrolyte pipe, a cooling device, a high-temperature water pipe and a low-temperature water pipe, wherein one end of the high-temperature electrolyte pipe is communicated with an outlet of the electrolytic cell, the other end of the high-temperature electrolyte pipe is communicated with an electrolyte inlet of a heat exchanger, a high-temperature electrolyte circulating pump is arranged on the high-temperature electrolyte pipe, one end of the low-temperature electrolyte pipe is communicated with an electrolyte outlet of the heat exchanger, and the other end of the low-temperature electrolyte pipe is communicated with an inlet; one end of the low-temperature water pipe is communicated with the outlet of the water tank, the other end of the low-temperature water pipe is communicated with the water inlet of the heat exchanger, a cooling water pipeline pump is arranged on the low-temperature water pipe, one end of the high-temperature water pipe is communicated with the water outlet of the heat exchanger, the other end of the high-temperature water pipe is communicated with the inlet of the cooling device, and the outlet of the cooling device is communicated with the water.

The heat exchanger is a plate heat exchanger.

The heat exchange fins of the plate heat exchanger are made of titanium alloy materials.

The heat exchange area of the heat exchange plates of the plate type heat exchanger is 25-30 square meters.

The cooling device is a cooling tower.

And a water replenishing pipe is arranged on the water tank.

And an outlet of the water replenishing pipe is provided with an automatic ball valve.

And a cooling water pipeline standby pump is arranged on the low-temperature water pipe.

And a first valve is arranged between the electrolytic tank and the high-temperature electrolyte circulating pump.

And a fourth valve is arranged on the low-temperature water pipe.

The utility model has the advantages that: 1. the cooling effect is good, and the temperature control condition of the electrolysis production can be completely met, so that the optimal electrolysis effect is achieved. The high-temperature electrolytic circulating liquid enters a heat exchanger at about 40 ℃ to exchange heat with cooling water at about 30 ℃, then is cooled, and then flows back to the electrolytic cell at about 35 ℃, so that the working temperature of the electrolyte of the electrolytic cell is kept at 39-41 ℃ all the time, and the optimal electrolytic effect is achieved.

2. Corrosion resistance, no odor and no pollution. The improved electrolyte cooling system adopts a titanium plate heat exchanger, the titanium heat exchange plates can resist strong acid and strong alkali, the equipment is closed for heat exchange, and evaporation of acid mist cannot overflow.

3. The heat after heat exchange is dissipated by a water cooling tower. The equipment cost is low, and the occupied area is small.

4. The connecting pipeline is short, and can be directly fed into electrolytic bath, and has no phenomena of leakage, overflow, dripping and leakage, and can not cause air pollution,

description of the drawings:

fig. 1 is a schematic structural diagram of the electrolyte cooling system of the present invention.

Detailed Description

Referring to figure 1: an electrolyte cooling system comprises an electrolytic cell 1, a high-temperature electrolyte tube 2, a low-temperature electrolyte tube 23, a cooling device 10, a high-temperature water tube 9 and a low-temperature water tube 14, wherein one end of the high-temperature electrolyte tube 2 is communicated with an outlet of the electrolytic cell 1, the other end of the high-temperature electrolyte tube is communicated with an electrolyte inlet 71 of a heat exchanger 7, a high-temperature electrolyte circulating pump 5 is arranged on the high-temperature electrolyte tube 2, a first valve 4 is arranged between the high-temperature electrolyte circulating pump 5 and the electrolytic cell 1, and a second valve 6 is arranged between the high-temperature electrolyte circulating pump 5 and the; one end of the low-temperature electrolyte pipe 23 is communicated with the electrolyte outlet 72 of the heat exchanger, the other end is communicated with the inlet of the electrolytic cell 1, and the low-temperature electrolyte pipe 23 is provided with a sixth valve 22.

One end of the low-temperature water pipe 14 is communicated with the outlet of the water tank 11, the other end of the low-temperature water pipe is communicated with the water inlet 73 of the heat exchanger 7, the low-temperature water pipe 14 is provided with a cooling water pipeline pump 16, one end of the high-temperature water pipe 9 is communicated with the water outlet 74 of the heat exchanger 7, the other end of the high-temperature water pipe is communicated with the inlet of the cooling device 10, and the outlet of the cooling device 10 is communicated. The cooling device 10 is a cooling tower. The water of the cooling tower rotates from the top of the tower and falls through the radiating fins, and is cooled by the fan in the falling process.

The heat exchanger 7 is a plate heat exchanger, the model of the plate heat exchanger is BR05KH-25, the heat exchange fins 75 of the plate heat exchanger are made of titanium alloy materials, and the heat exchange area of the heat exchange fins 75 of the plate heat exchanger is 25-30 square meters. The area of the heat exchange plate can be designed according to the flow of the electrolyte circulating pump. The titanium heat exchange plate can resist strong acid and strong alkali, so that the corrosion of equipment is prevented.

And a water replenishing pipe 12 is arranged on the water tank 11, an automatic ball valve 13 is arranged at the outlet of the water replenishing pipe 12, and when the cooling water is lower than the liquid level, the automatic ball valve 13 on the water replenishing pipe 12 is automatically opened to replenish water through the water replenishing pipe.

A fourth valve 15 is arranged between the cooling water pipeline pump 16 and the water tank 11, a fifth valve 17 is arranged between the cooling water pipeline pump 16 and the heat exchanger 7, and a third valve 8 is arranged on the high-temperature water pipe. These valves facilitate installation and maintenance of the apparatus.

A standby water pipe 18 is further arranged between the water tank 11 and the heat exchanger 7, a standby water pump 20 is arranged on the standby water pipe 18, and a first standby valve 19 and a second standby valve 21 are respectively arranged on two sides of the standby water pump 20.

The high-temperature electrolyte circulating pump 5 is an HTB-ZK10.0/35 type acid-resistant ceramic pump, the power of the high-temperature electrolyte circulating pump is 18-22kw, the inlet diameter is 100-160mm, the outlet diameter is 80-110 mm, and the flow is 50-60 m during the year.

The cooling water pipeline pump 16 is a pipeline centrifugal pump, the power of the pipeline centrifugal pump is 7.5 kw, the diameter of the inlet and the outlet of the pump is 160mm and the flow rate is 150 m and 150 m.

Under the condition that the pipe diameters are basically consistent, the flow rate of the water pipe is 120-150 m/h which is 2-3 times of the flow rate of the electrolyte pipe which is 50-60 m/h, so that when the electrolyte and the water are subjected to heat exchange in the heat exchanger, the water can quickly take away the heat of the electrolyte due to the high flow speed of the water.

When the electrolytic bath is in work, a valve on a pipeline is opened, a high-temperature electrolyte circulating pump 5 and a cooling water pipeline pump 16 are started, high-temperature electrolyte circulating liquid at about 40 ℃ flows into one side of electrolyte of a heat exchange sheet 75 in a heat exchanger 7 from a liquid inlet 71 of a high-temperature electrolyte pipe 2, cooling water at about 30 ℃ enters one side of water of the heat exchange sheet 75 in a water inlet 73 of the heat exchanger from a low-temperature water pipe 14, after the heat exchange between the electrolyte and the water is carried out through the heat exchange sheet, the electrolyte flows out from a liquid outlet 72 and flows back to the electrolytic bath from the low-temperature electrolyte pipe at about 35 ℃, the water flows back to a cooling tower from a water outlet at about 38 ℃ from a high-temperature water pipe 9 for cooling, and therefore the working state temperature of the electrolyte in the electrolytic bath.

Claims

1. The utility model provides an electrolyte cooling system, includes electrolysis trough (1), high temperature electrolyte pipe (2), low temperature electrolyte pipe (23), cooling device (10), high temperature water pipe (9), low temperature water pipe (14), characterized by: one end of the high-temperature electrolyte pipe (2) is communicated with an outlet of the electrolytic tank (1), the other end of the high-temperature electrolyte pipe is communicated with an electrolyte inlet (71) of the heat exchanger (7), a high-temperature electrolyte circulating pump (5) is arranged on the high-temperature electrolyte pipe (2), one end of the low-temperature electrolyte pipe (23) is communicated with an electrolyte outlet (72) of the heat exchanger, and the other end of the low-temperature electrolyte pipe is communicated with an inlet of the electrolytic tank (1); one end of the low-temperature water pipe (14) is communicated with an outlet of the water tank (11), the other end of the low-temperature water pipe is communicated with a water inlet (73) of the heat exchanger (7), a cooling water pipeline pump (16) is arranged on the low-temperature water pipe (14), one end of the high-temperature water pipe (9) is communicated with a water outlet (74) of the heat exchanger (7), the other end of the high-temperature water pipe is communicated with an inlet of the cooling device (10), and an outlet of the cooling device (10) is communicated with the water tank (11).

2. The electrolyte cooling system according to claim 1, wherein: the heat exchanger (7) is a plate heat exchanger.

3. The electrolyte cooling system according to claim 2, wherein: the heat exchange fins (75) of the plate heat exchanger are made of titanium alloy materials.

4. The electrolyte cooling system according to claim 2, wherein: the heat exchange area of the heat exchange fins (75) of the plate heat exchanger is 25-30 square meters.

5. The electrolyte cooling system according to claim 4, wherein: the cooling device (10) is a cooling tower.

6. The electrolyte cooling system of claim 5, wherein: and a water replenishing pipe (12) is arranged on the water tank (11).

7. The electrolyte cooling system according to claim 6, wherein: an outlet of the water replenishing pipe (12) is provided with an automatic ball valve (13).

8. The electrolyte cooling system of claim 7, wherein: and a cooling water pipeline standby pump (20) is arranged on the low-temperature water pipe (14).

9. The electrolyte cooling system according to claim 8, wherein: a first valve (4) is arranged between the electrolytic cell (1) and the high-temperature electrolyte circulating pump (5).

10. The electrolyte cooling system of claim 9, wherein: and a fourth valve (15) is arranged on the low-temperature water pipe (14).