Efficient and energy-saving liquid chlorine evaporation system

Abstract

The utility model relates to the technical field of liquid chlorine evaporation, in particular to an efficient and energy-saving liquid chlorine evaporation system. The efficient and energy-saving liquid chlorine evaporation system comprises an evaporator, the evaporator comprises a shell, the shell is provided with a jacket, the jacket is connected with a heat source circulation pipeline, a circulation pump is arranged on the heat source circulation pipeline, and the heat source circulation pipeline is connected with a heat source adding pipeline and a water return branch pipeline. The heat source adding pipeline is provided with a heat source inlet, the heat source inlet is connected with a heat source, a coil pipe is arranged in the evaporator, and the two ends of the coil pipe are connected with a liquid chlorine inlet and a gas chlorine outlet respectively. A heat source adding pipeline is introduced, so that traditional equipment and facilities can be saved, and equipment investment is reduced; the self-control valve group is matched with the temperature measuring device and the water return control valve, so that energy waste caused by too high temperature is avoided; a cold source adding pipeline is introduced, and after liquid chlorine vaporization work is finished, danger caused by too high system pressure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid chlorine evaporation technical field especially relates to a kind of high-efficiency energy-saving liquid chlorine evaporation system. BACKGROUND

[0002] The application field of liquid chlorine is very extensive, mainly including chemical industry, metallurgical industry, daily chemical industry, pesticide industry, etc. Liquid chlorine is generally used after vaporization, which can be used for bleaching of textiles and papermaking, producing inorganic chemical products such as sodium hypochlorite, bleaching powder, bromine and phosphorus trichloride, and also for producing organic chlorides such as chloroacetic acid, epoxy chloropropane, monochlorobenzene, and synthetic detergent raw materials, etc.

[0003] The conventional facilities used for liquid chlorine evaporation include liquid chlorine evaporator, water tank, cooler, water pump, coolant, heat medium, automatic control valve group, heat exchanger and other related equipment and facilities. The liquid chlorine evaporator is basically surrounded by a heat transfer medium water, and the liquid chlorine is added to the evaporator from the built-in coil. The vaporization system currently used needs to be heated by hot water or steam, and needs to be continuously circulated, which requires continuous heating. The structure is complex, the energy consumption is high, it is difficult to realize precise control of temperature, and there are problems of not easy to adjust and low heat exchange efficiency. At the same time, due to the large number of required equipment, the operation limitation is large, thereby increasing the daily maintenance cost. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems existing in the prior art, the utility model provides a kind of liquid chlorine evaporation system of high efficiency regulation.

[0005] The technical scheme for solving the above technical problems of the utility model is as follows:

[0006] The utility model provides a kind of liquid chlorine evaporation system of high efficiency regulation, including evaporator, the evaporator includes shell, the shell is equipped with jacket, the jacket is connected with heat source circulation pipeline, is equipped with circulating pump on the heat source circulation pipeline, the heat source circulation pipeline is connected with heat source addition pipeline and backwater branch pipeline respectively, the heat source addition pipeline is equipped with heat source inlet, the heat source inlet is connected with heat source, the evaporator inside is equipped with coil, the both ends of the coil are connected with liquid chlorine inlet and gas chlorine outlet respectively.

[0007] On the basis of the above technical scheme, the utility model can also be made as follows:

[0008] Further, the evaporator is a water bath type evaporator.

[0009] The beneficial effects of adopting the above further technical scheme are that the use of water bath type evaporator can improve the heat exchange efficiency, ensure that the evaporation process of liquid chlorine is more uniform and stable, thereby improving the overall performance and safety of the system.

[0010] Further, the heat source circulation pipeline circulates from the bottom of the evaporator to the top of the evaporator, that is, the bottom of the evaporator is connected to the inlet of the heat source circulation pipeline, and the top of the evaporator is connected to the outlet of the heat source circulation pipeline.

[0011] The beneficial effects of adopting the above further technical solutions are that the liquid chlorine evaporation heat source circulation pipeline is bottom-in and top-out, which can optimize the flow path of the heat source, ensure that the heat source in the liquid chlorine evaporator can fully heat the coil, improve the evaporation efficiency of the liquid chlorine, and reduce heat loss.

[0012] Further, the heat source circulation pipeline is connected with a temperature measuring device.

[0013] Further, the temperature measuring device is any one of a temperature indicator (TI), a temperature indicating controller (TIC), a temperature indicating switch and control assembly (TISCA).

[0014] Further, an automatic valve group is arranged on the heat source adding pipeline.

[0015] The beneficial effects of adopting the above further technical solutions are that the flow of the heat source can be manually controlled by controlling the opening of the automatic valve according to the reading of the temperature indicator (TI), and the cascade adjustment of the circulating water temperature and the automatic valve group can be realized through the TIC or TISCA. In the main control loop, the temperature measuring device monitors the actual temperature of the system in real time and compares it with the set temperature. The main controller calculates the required heat source inflow according to the temperature deviation, and the slave control loop is responsible for adjusting the circulating temperature of the hot water. The output signal of the main controller can be used to adjust the opening of the automatic valve group, thereby controlling the flow and temperature of the heat source, and automatically adjusting the inflow of the heat source according to the actual demand of the system. Thus, more accurate temperature control is realized, and the automation level and energy efficiency of the system are improved.

[0016] Further, the temperature measuring device is located at the inlet of the heat source circulation pipeline at the bottom of the evaporator.

[0017] The beneficial effects of adopting the above further technical solutions are that the temperature measuring device is located at the inlet of the heat source circulation pipeline, and the measurement result is more accurate.

[0018] Further, the circulating pump is a booster pump.

[0019] The beneficial effect of adopting the above-mentioned further technical solutions is that the main purpose of adding equipment pumps is to prevent continuous production from being interrupted after the operating pump fails.

[0020] Furthermore, a check valve is provided on the heat source inlet pipeline.

[0021] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: the check valve can be located on the side of the automatic control valve group away from the heat source inlet. The check valve can prevent the heat source from flowing back, ensure the safety and stability of the system, and avoid incomplete evaporation of liquid chlorine or other potential safety hazards caused by backflow.

[0022] Furthermore, the heat source is desalinated hot water or desalinated steam.

[0023] Furthermore, the liquid chlorine inlet is located at the lower end of the evaporator, the gaseous chlorine outlet is located at the upper end of the evaporator, the liquid chlorine inlet is connected to a liquid chlorine feed valve, and the gaseous chlorine outlet is connected to a gaseous chlorine discharge valve.

[0024] Furthermore, the return water branch line is connected to the outlet of the heat source circulation line at the top of the evaporator, and a return water control valve is provided on the return water branch line.

[0025] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the return water branch pipeline is used to transport the return water after heat exchange, and the return water control valve on the return water branch pipeline is mainly used to regulate the return water flow and temperature to ensure the heat exchange efficiency of the evaporator. It can also prevent system overpressure and overcurrent, protect equipment safety, and be linked with the temperature measuring device in the automatic control to achieve precise temperature control.

[0026] Furthermore, the self-controlled valve assembly is connected to a cold source inlet pipeline, the cold source inlet pipeline is equipped with a cold source control valve, the cold source inlet pipeline is equipped with a cold source inlet, and the hot and cold inlet is connected to a cold source.

[0027] Furthermore, the cold source is desalinated cold water.

[0028] The beneficial effects of adopting the above-mentioned further technical solutions are as follows: after the liquid chlorine vaporization work is completed, the system pressure is avoided from being too high and causing danger. The cooling efficiency is further improved by opening the cold source control valve and allowing the desalinated cold water to be introduced into the heat source circulation pipeline through the cold source inlet pipeline, which can quickly cool the water.

[0029] Compared with the prior art, the present invention has the following technical effects:

[0030] This utility model's liquid chlorine hot water vaporization system introduces a heat source into the pipeline, saving the need for equipment such as hot water tanks, coolers, and related control valve groups. While meeting the liquid chlorine evaporation efficiency requirements, it significantly reduces equipment investment. The system is simple in structure, easy to operate, and highly practical. The coordination between the automatic control valve group, temperature measuring device, and return water control valve enables efficient regulation, keeping the jacket temperature controlled at 71℃ and preventing energy waste due to excessive temperature. The introduction of a cold source into the pipeline prevents excessive system pressure and potential hazards after liquid chlorine vaporization, further improving cooling efficiency. Attached Figure Description

[0031] Figure 1 This diagram shows the structure of the highly efficient liquid chlorine evaporation system without a cooling source according to the present invention.

[0032] Figure 2 This invention presents a schematic diagram of the highly efficient liquid chlorine evaporation system with added cold source.

[0033] Figure label:

[0034] 1. Evaporator; 2. Circulating pump; 3. Automatic control valve assembly; 4. Heat source circulation pipeline; 5. Heat source input pipeline; 6. Return water branch pipeline; 7. Temperature measuring device; 8. Return water control valve; 9. Cold source input pipeline; 10. Cold source control valve. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] like Figure 1As shown, a high-efficiency and energy-saving liquid chlorine evaporation system includes an evaporator 1. The evaporator 1 includes a shell, and the shell is provided with a jacket. The jacket is connected to a heat source circulation pipeline 4. A circulation pump 2 is provided on the heat source circulation pipeline 4. The heat source circulation pipeline 4 is respectively connected to a heat source inlet pipeline 5 and a return water branch pipeline 6. The heat source inlet pipeline 5 is provided with a heat source inlet, and the heat source inlet is connected to a heat source. A coil is provided inside the evaporator 1, and the two ends of the coil are respectively connected to a liquid chlorine inlet and a gaseous chlorine outlet.

[0037] In a preferred embodiment, the evaporator 1 is a water bath evaporator 1.

[0038] In this embodiment, the heat source circulation pipeline 4 enters from the bottom of the evaporator 1 and flows out from the top of the evaporator 1.

[0039] In an optional embodiment, the heat source inlet line 5 is provided with a self-regulating valve assembly 3.

[0040] In an optional embodiment, the heat source circulation line 4 is connected to a temperature measuring device 7.

[0041] In a preferred embodiment, the temperature measuring device 7 is any one of a temperature indicator TI, a temperature indicator controller TIC, a temperature indicator switch, and a control component TISCA.

[0042] In this embodiment, the temperature measuring device 7 is located at the inlet of the heat source circulation pipeline 4 at the bottom of the evaporator 1.

[0043] In a preferred embodiment, the circulating pump 2 is equipped with an additional pump.

[0044] In a preferred embodiment, a check valve is provided on the heat source inlet pipeline 5.

[0045] In an optional embodiment, the heat source is desalinated hot water or desalinated steam.

[0046] In this embodiment, the return water branch line 6 is connected to the outlet of the heat source circulation line 4 at the top of the evaporator 1, and the return water branch line 6 is equipped with a return water control valve 8.

[0047] In this embodiment, the liquid chlorine inlet is located at the lower end of the evaporator 1, the gaseous chlorine outlet is located at the upper end of the evaporator 1, the liquid chlorine inlet is connected to a liquid chlorine feed valve, and the gaseous chlorine outlet is connected to a gaseous chlorine discharge valve.

[0048] like Figure 2 As shown, in a preferred embodiment, the self-controlled valve group 3 is connected to a cold source inlet pipeline 9, the heat source inlet pipeline 9 is provided with a cold source control valve 10, the cold source inlet pipeline 9 is provided with a cold source inlet, and the hot and cold inlet is connected to a cold source.

[0049] In an optional embodiment, the cold source is desalinated cold water.

[0050] When using this system to evaporate liquid chlorine, desalinated hot water with a temperature higher than 71°C enters the jacket of evaporator 1 from the bottom through the heat source addition pipeline 5 and heat source circulation pipeline 4 via the automatic control valve group 3 and the circulation pump 2. Under the action of the circulation pump 2, a closed loop is formed. Liquid chlorine is introduced through the inlet of the built-in coil at the lower end of evaporator 1. Once the jacket temperature rises to 71°C, the liquid chlorine is converted into chlorine gas for use after heat transfer. During this process, the heat source temperature is adjusted by the automatic control valve group 3 according to the hot water temperature displayed by the temperature measuring device 7. The opening of the source inlet pipeline 5 is controlled by the return water control valve 8, which controls the opening of the return water branch pipeline 6. When chlorine use is stopped, the liquid chlorine feed valve of evaporator 1 and the automatic control valve group 3 can be closed, and the circulation pump 2 can be stopped to achieve a cooling effect. To further improve the cooling efficiency, the cold source control valve 10 can be opened, and the desalination cold water can be introduced into the heat source circulation pipeline 4 through the cold source inlet pipeline 9, which can quickly cool down the water and avoid excessive pressure on evaporator 1. In this way, rapid evaporation and heat exchange effect of immediate use and immediate stop can be achieved, thus achieving the purpose of efficient regulation.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highly efficient and energy-saving liquid chlorine evaporation system, characterized in that, The device includes an evaporator, which comprises a shell and a jacket. The jacket is connected to a heat source circulation pipeline, and a circulation pump is installed on the heat source circulation pipeline. The heat source circulation pipeline is connected to a heat source inlet pipeline and a return water branch pipeline. The heat source inlet pipeline has a heat source inlet, and a heat source is connected to the heat source inlet. The evaporator has a coil inside, and both ends of the coil are connected to a liquid chlorine inlet and a gaseous chlorine outlet, respectively.

2. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 1, characterized in that, The evaporator is a water bath evaporator.

3. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 2, characterized in that, The heat source circulation pipeline enters from the bottom of the evaporator and exits from the top of the evaporator.

4. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 3, characterized in that, The heat source inlet pipeline is equipped with an automatic control valve group.

5. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 1, characterized in that, A check valve is installed on the heat source inlet pipeline.

6. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 1, characterized in that, The heat source is desalinated hot water or desalinated steam.

7. The high-efficiency and energy-saving liquid chlorine evaporation system according to any one of claims 1-6, characterized in that, The heat source circulation pipeline is connected to a temperature measuring device.

8. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 7, characterized in that, The temperature measuring device is located at the inlet of the heat source circulation pipeline at the bottom of the evaporator.

9. The high-efficiency and energy-saving liquid chlorine evaporation system according to claim 7, characterized in that, A return water control valve is installed on the return water branch pipeline.

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