Chemical material cooling circulation system and cooling method thereof

Abstract

The invention relates to a chemical material cooling circulation system and a cooling method thereof.A condenser and a condensing tower are in loop connection, a circulating pump is arranged between the outlet end of the cooling tower and a liquid phase inlet of the condenser, and a temperature controller is arranged at a liquid phase outlet of the condenser and can measure the temperature of outlet circulating water; meanwhile, a gas-phase inlet of the condenser is used for introducing cold air for cooling, when the cooling circulation system works, the temperature controller can monitor the temperature of outlet water in real time so as to control the flow of the circulating water pump and the flow of the fan, and after entering a cavity of the condenser, high-temperature materials firstly pass through the gas heat exchange pipe close to the high-temperature material inlet end and then pass through the gas heat exchange pipe close to the high-temperature material inlet end; after passing through the gas heat exchange pipe, heat is transmitted to air in the gas heat exchange pipe, so that cold air entering the gas circulation heat exchange area can take away part of heat in the materials and become hot air, the hot air is discharged through a gas phase outlet, and the materials subjected to heat exchange through the gas heat exchange pipe are subjected to heat exchange through the liquid heat exchange pipe. And the low-temperature material after heat exchange is discharged through the material outlet.

Description

Technical Field

[0001] The present application relates to the field of cooling circulation, and in particular to a chemical material cooling circulation system and a cooling method thereof. Background Art

[0002] At present, the core structure of the cooling circulation system widely used in the fine chemical industry is generally composed of three key components: cooling tower, circulation pump station and condenser. The overall heat exchange capacity of this system is not simply obtained by adding the performance of each part, but is limited by the weakest link among the three, that is, the heat exchange capacity directly depends on the lowest limit of the three parts.

[0003] In actual applications, when the system equipment and workshop production process remain constant, the operating conditions of the cooling circulation system will show significant differences with the change of seasons. Specifically, in winter, due to the relatively low ambient temperature, the operation of the cooling circulation system often seems to be at ease and can easily meet the cooling needs of the production process. However, with the advent of summer, the weather is hot and the temperature soars, which poses a severe challenge to the cooling effect of the cooling tower. Under high temperatures, the heat dissipation capacity of the cooling tower is severely restricted, causing the entire cooling circulation system to be overwhelmed and difficult to achieve the ideal cooling effect. Summary of the invention

[0004] In view of this, the present application proposes a cooling circulation system, including: a cooling tower, a circulation pump, a fan, a condenser, a throttle valve and a temperature controller.

[0005] The condenser includes a gas cooling chamber and a liquid cooling chamber connected in sequence, the gas cooling chamber is cooled by an air heat exchange tube, and the liquid cooling chamber is cooled by a liquid heat exchange tube; the outlet end of the cooling tower is connected to the liquid phase inlet of the condenser by a pipeline, and the circulating pump is arranged between the outlet end of the cooling tower and the liquid phase inlet of the condenser; the liquid phase outlet of the condenser is connected to the inlet end of the cooling tower by a pipeline, and the throttle valve and the temperature controller are arranged between the liquid phase outlet of the condenser and the inlet end of the cooling tower; the air outlet of the fan is connected to the gas phase inlet of the condenser by a pipeline, and the gas phase outlet of the condenser is suitable for connecting to the heating end; the temperature controller is electrically connected to the circulating water pump and the fan.

[0006] In one achievable manner, the temperature controller is disposed on a side close to the liquid phase outlet of the condenser, and the throttle valve is disposed between the temperature controller and an inlet end of the cooling tower.

[0007] In one feasible manner, the condenser further includes: a cavity; the gas cooling chamber and the liquid cooling chamber are both arranged in the cavity; the gas heat exchange tube and the liquid heat exchange tube are both arranged in the cavity; one end of the gas heat exchange tube is connected to the gas phase inlet, and the other end is connected to the gas phase outlet; one end of the liquid heat exchange tube is connected to the liquid phase inlet, and the other end is connected to the liquid phase outlet.

[0008] In one feasible manner, a material inlet is provided on one side of the length direction of the cavity, and a material outlet is provided at the bottom of the cavity, and the material outlet is provided at the bottom of the cavity and away from the material inlet; the gas phase inlet is provided at the bottom of the cavity, and the gas phase outlet is provided at the top of the cavity, and the gas phase inlet and the gas phase outlet are both provided on the side close to the material inlet; the liquid phase inlet and the liquid phase outlet are both provided on the other side of the length direction of the cavity.

[0009] In one achievable manner, the condenser further comprises a partition, wherein the partition is disposed between the gas heat exchange tube and the liquid heat exchange tube, and a preset distance is formed between the top and the bottom of the partition and the inner wall of the cavity.

[0010] According to another aspect of the present application, a chemical material cooling method is provided, and the cooling circulation system described in any one of the above items is used to cool the chemical material, including: the high-temperature material first enters the gas cooling chamber of the condenser for heat exchange to obtain the medium-temperature material; the high-temperature material first enters the gas cooling chamber of the condenser for heat exchange to obtain the medium-temperature material; the medium-temperature material then enters the liquid cooling chamber of the condenser for heat exchange; the circulating pump sends the low-temperature circulating water generated by the cooling tower into the condenser for heat exchange with the medium-temperature material, and the high-temperature circulating water after heat exchange is sent to the cooling tower for cooling, and circulates sequentially; the circulating water temperature at the water outlet position of the condenser corresponds to the working efficiency of the fan and the circulating pump.

[0011] In one feasible manner, the temperature of the high-temperature circulating water generated at the condenser outlet position corresponds to the flow rate of the fan and the circulating pump and also includes: when the temperature of the high-temperature circulating water is greater than a preset temperature, the working efficiency of the fan and the circulating pump is improved; when the temperature of the high-temperature circulating water is lower, the working efficiency of the fan and the circulating pump is reduced.

[0012] In one feasible manner, improving the working efficiency of the fan and the circulating pump also includes: first improving the working efficiency of the fan, and when the working efficiency of the fan reaches the maximum, if the temperature of the high-temperature circulating water is still greater than the preset temperature, then improving the working efficiency of the circulating pump.

[0013] In one achievable manner, reducing the working efficiency of the fan and the circulating pump further includes: first gradually reducing the working efficiency of the circulating pump, and then gradually reducing the working efficiency of the fan, until the temperature of the high-temperature circulating water is the same as the preset temperature.

[0014] In one achievable manner, the working efficiency of the fan and the circulation pump is flow rate.

[0015] The beneficial effects of the present application are as follows: a loop is connected between the cooling tower and the condenser, a circulating pump is arranged between the outlet end of the cooling tower and the liquid phase inlet of the condenser, a temperature controller and a throttle valve are arranged between the liquid phase outlet of the condenser and the inlet end of the cooling tower, wherein the temperature controller is arranged at one end close to the liquid phase outlet of the condenser, for measuring the liquid temperature at the liquid phase outlet end of the condenser, and at the same time, a gas phase inlet and a gas phase outlet are arranged on the condenser, for introducing cold air for cooling, when the cooling circulation system is working, the temperature controller can monitor the outlet water temperature in real time to control the flow rate of the circulating water pump and the fan, and the cooling circulation system according to the present application cools the material by both air cooling and water cooling, which can reduce the burden on the cooling tower, and at the same time can maximize the efficiency of the cooling tower and the condenser by controlling the operating status of the circulating water pump and the fan.

[0016] Among them, when the high-temperature material enters the cavity of the condenser, it first passes through the air heat exchange pipe near the inlet end of the high-temperature material, and then transfers the heat to the air in the air heat exchange pipe after passing through the air heat exchange pipe. Therefore, the cold air entering the air circulation heat exchange area will take away part of the heat in the material and become hot air, which is discharged through the gas phase outlet. The material after heat exchange through the air heat exchange pipe will then pass through the liquid heat exchange pipe for heat exchange, and the low-temperature material after heat exchange will be discharged through the material outlet. The high-temperature material first passes through the air heat exchange pipe to take away part of the heat, so that the circulating water temperature at the liquid phase outlet is reduced, reducing the cooling burden on the cooling tower, and the heat taken away can be used as a heat source for heating or pipeline heating. At the same time, the present application can completely separate the gas and circulating water independently. While the gas takes away the heat, it will not cause volatilization loss of circulating water, which has a water-saving effect.

[0017] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 A schematic diagram showing a cooling cycle system according to an embodiment of the present application;

[0020] Figure 2A schematic cross-sectional structure diagram of a condenser according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0022] Among them, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0025] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0026] In a fine chemical cooling cycle process, the cooling tower 200, the circulating pump 300 and the condenser 100 form a heat exchange cycle. The working efficiency of the heat exchange cycle depends on the lowest line of working efficiency among the three components. For example, when the working efficiency of the circulating pump 300 and the condenser 100 is large enough, the working efficiency of the cooling tower 200 is small, and the maximum heat exchange of the cycle is the heat exchange of the cooling tower 200. In winter, the outside temperature is low, and the cooling effect of the cooling tower 200 is better. If the circulating pump 300 and the condenser 100 continue to be at the maximum working power, more energy will be wasted. In summer, the outside temperature is high, and the cooling effect of the cooling tower 200 is poor. If the circulating pump 300 is in an incomplete working state, it will increase the burden of the cooling tower 200, affect the heat exchange effect, and cause incomplete heat exchange. To this end, a cooling circulation method is proposed, including: high-temperature materials enter the condenser 100 for heat exchange; the high-temperature materials first exchange heat with the cold air sent by the fan 400 to form medium-temperature materials; the circulating pump 300 sends the low-temperature circulating water generated by the cooling tower 200 into the condenser 100 for heat exchange with the medium-temperature materials, and the high-temperature circulating water after heat exchange is sent to the cooling tower 200 for cooling and circulation in sequence; the temperature of the circulating water at the outlet of the condenser 100 corresponds to the working efficiency of the fan 400 and the circulating pump 300.

[0027] In this embodiment, circulating water and air flow through the condenser 100 at the same time. The high-temperature material enters the condenser 100 and first exchanges heat with the cold air sent into the condenser 100 by the fan 400, completing the first heat exchange of the high-temperature material. The high-temperature material becomes medium-temperature material, and the cold air entering the condenser 100 becomes hot air and is discharged outside the condenser 100, which can be used as a heat source for heating or other pipeline heating. The medium-temperature material continues to move forward in the condenser 100 and exchanges heat with the circulating water. The circulating water is produced by the cooling tower 200 and is sent into the condenser 100 through the circulating pump 300 to exchange heat with the medium-temperature material in the condenser 100. The material that completes the second heat exchange becomes a low-temperature material and is discharged out of the condenser 100. The circulating water changes from low temperature to high temperature and is discharged to the cooling tower 200 through the water outlet of the condenser 100 for cooling treatment. The circulating water temperature at the water outlet of the condenser 100 is monitored in real time. According to the real-time water temperature at the water outlet of the condenser 100, the working state of the fan 400 and the circulating pump 300 is controlled, that is, the air intake of the fan 400 and the water intake of the circulating pump 300 are controlled.

[0028] In one feasible manner, the temperature of the high-temperature circulating water generated at the outlet of the condenser 100 corresponds to the flow rate of the fan 400 and the circulating pump 300 and also includes: when the temperature of the high-temperature circulating water is greater than a preset temperature, the working efficiency of the fan 400 and the circulating pump 300 is improved; when the temperature of the high-temperature circulating water is low, the working efficiency of the fan 400 and the circulating pump 300 is reduced.

[0029] In this embodiment, a preset temperature is set at the water outlet of the condenser 100. When the temperature of the high-temperature circulating water is the preset temperature, it can ensure that the energy consumed by the fan 400 and the circulating pump 300 and the cooling effect on the material are optimally balanced. When the temperature of the high-temperature circulating water is different from the preset temperature, the working efficiency of the fan 400 and the circulating pump 300 is adjusted in real time to achieve the optimal working state. When the temperature of the high-temperature circulating water is greater than the preset temperature, that is, the working efficiency of the fan 400 and the circulating pump 300 is lower than the energy required for heat exchange of the high-temperature material, the working efficiency of the fan 400 and the circulating pump 300 is improved at this time. On the contrary, when the temperature of the high-temperature circulating water is lower than the preset temperature, the working efficiency of the fan 400 and the circulating pump 300 is higher than the energy required for heat exchange of the high-temperature material, resulting in a waste of energy. The working efficiency of the fan 400 and the circulating pump 300 should be reduced.

[0030] In one achievable manner, increasing the working efficiency of the fan 400 and the circulating pump 300 further includes: first increasing the working efficiency of the fan 400, and when the working efficiency of the fan 400 reaches the maximum, if the temperature of the high-temperature circulating water is still greater than the preset temperature, then increasing the working efficiency of the circulating pump 300. Reducing the working efficiency of the fan 400 and the circulating pump 300 further includes: first gradually reducing the working efficiency of the circulating pump 300, and then gradually reducing the working efficiency of the fan 400 until the temperature of the high-temperature circulating water is the same as or close to the preset temperature.

[0031] In this embodiment, if it is necessary to improve the working efficiency of the fan 400 and the circulating pump 300, the working efficiency of the fan 400 should be improved first. If the working efficiency of the fan 400 is improved enough to reduce the temperature of the high-temperature material and the temperature of the high-temperature circulating water, it is not necessary to increase the working efficiency of the circulating pump 300. If the temperature of the high-temperature circulating water cannot be reduced after the working efficiency of the fan 400 has been raised to the highest, the working efficiency of the circulating pump 300 is increased until the high-temperature circulating water reaches the preset temperature. On the contrary, if it is necessary to reduce the working efficiency of the fan 400 and the circulating pump 300, the working efficiency of the circulating pump 300 should be reduced first. If the working efficiency of the circulating pump 300 is reduced enough to reduce the temperature of the high-temperature material and the temperature of the high-temperature circulating water, it is not necessary to reduce the working efficiency of the fan 400. If the working efficiency of the circulating pump 300 has been reduced to the minimum value to maintain its working state, it is still unable to increase the temperature of the high-temperature circulating water, then the working efficiency of the fan 400 is reduced until the high-temperature circulating water reaches the preset temperature. The cold air brought by the fan 400 becomes hot air after heat exchange, which can be directly discharged outside the system and used for other heating devices, so as to achieve the purpose of heat energy recovery and reuse. The high-temperature circulating water needs to be cooled by a cooling tower, and this process consumes energy. Therefore, the priority use of gas heat exchange is more in line with energy-saving and environmental protection requirements.

[0032] In one feasible method, the working efficiency of the fan 400 and the circulating pump 300 is the flow rate. Changing the working efficiency of the fan 400 means changing the air intake volume and air intake rate of the fan 400. Changing the working efficiency of the circulating pump 300 means changing the flow rate and flow velocity of the circulating water passing through the circulating pump 300.

[0033] According to another aspect of the present application, Figure 1 As shown, a cooling circulation system is provided, which can realize any of the above cooling circulation methods, including: a cooling tower 200, a circulation pump 300, a fan 400, a condenser 100, a throttle valve 600 and a temperature controller 500; the condenser 100 includes a gas cooling chamber and a liquid cooling chamber connected in sequence, the gas cooling chamber is cooled by an air heat exchange pipe 120, and the liquid cooling chamber is cooled by a liquid heat exchange pipe 130; the outlet end of the cooling tower 200 is connected to the liquid phase inlet 115 of the condenser 100 by a pipeline, and the outlet end of the cooling tower 200 and the cooling chamber are connected by a pipe. A circulating pump 300 is arranged between the liquid phase inlet 115 of the condenser 100; the liquid phase outlet 116 of the condenser 100 is connected to the inlet end of the cooling tower 200 by a pipeline, and a throttle valve 600 and a temperature controller 500 are arranged between the liquid phase outlet 116 of the condenser 100 and the inlet end of the cooling tower 200; the air outlet of the fan 400 is connected to the gas phase inlet 113 of the condenser 100 by a pipeline, and the gas phase outlet 114 of the condenser 100 is suitable for connecting to the heating end 700; the temperature controller 500 is electrically connected to the circulating water pump and the fan 400.

[0034] In one practicable manner, the temperature controller 500 is disposed on a side close to the liquid phase outlet 116 of the condenser 100 , and the throttle valve 600 is disposed between the temperature controller 500 and an inlet end of the cooling tower 200 .

[0035] The low-temperature circulating water in the cooling tower 200 enters the condenser 100 through the circulating water pump, and heats up in the condenser 100 through heat exchange. The high-temperature circulating water is discharged through the liquid phase outlet 116 of the condenser 100. The temperature controller 500 is provided at the liquid phase outlet 116 of the condenser 100 to measure the temperature of the outlet water. The outlet water flows into the cooling tower 200 for cooling again after passing through the throttle valve 600, forming a cooling cycle. In this process, the condenser 100 is also provided with a gas phase inlet 113 and a gas phase outlet 114, which are used to pass cold air in for heat exchange and then discharge hot air. The discharged hot air can be used for indoor heating or other heat use links in winter.

[0036] Among them, for example, in winter, the outside temperature is low, and the cooling efficiency of the cooling tower 200 is relatively high. When the temperature controller 500 at the liquid phase outlet 116 of the condenser 100 detects that the water temperature is relatively low, the operating speeds of the fan 400 and the circulating pump 300 are reduced. When the circulating water after heat exchange returns to the cooling tower 200, the temperature will not be too high, which is in line with the influence of the outside temperature on the working efficiency of the cooling tower 200. Under the condition of suitable circulating water temperature, the working consumption of the fan 400 and the circulating pump 300 can be saved; in summer, the outside temperature is high, and the cooling efficiency of the cooling tower 200 is relatively low. If the operating speeds of the circulating pump 300 and the fan 400 are relatively low, the temperature controller 500 at the liquid phase outlet 116 of the condenser 100 detects that the water temperature is relatively high, and the burden on the cooling tower 200 is relatively heavy. Heat exchange can be performed by increasing the rate and flow rate of cold air introduced into the condenser 100 by the fan 400 and the flow rate and flow rate of circulating water. A portion of the heat is taken out through the air circulation, thereby reducing the pressure of the water circulation of the cooling tower 200. The circulating water is then cooled to reduce the heat absorbed by the circulating water, thereby reducing the burden on the cooling tower 200.

[0037] like Figure 2 As shown, the condenser 100 includes: a cavity 110, an air heat exchange tube 120 and a liquid heat exchange tube 130; the air heat exchange tube 120 and the liquid heat exchange tube 130 are both arranged in the cavity 110; one end of the air heat exchange tube 120 is connected to the gas phase inlet 113, and the other end is connected to the gas phase outlet 114; one end of the liquid heat exchange tube 130 is connected to the liquid phase inlet 115, and the other end is connected to the liquid phase outlet 116.

[0038] In one achievable manner, both the gas cooling chamber and the liquid cooling chamber are disposed in the cavity 110, and the gas cooling chamber is disposed at the front end of the liquid cooling chamber, that is, Figure 1 As shown on the left side, the material enters the cavity 110 and first enters the gas cooling chamber. A material inlet 111 is provided on one side of the length direction of the cavity 110, and the material inlet 111 is provided on one side of the gas cooling chamber. A material outlet 112 is provided at the bottom of the cavity 110, and is away from the material inlet 111. A gas phase inlet 113 is provided at the bottom of the cavity 110, that is, the material outlet 112 is provided at the bottom of the liquid cooling chamber, and a gas phase outlet 114 is provided at the top of the cavity 110, and the gas phase inlet 113 and the gas phase outlet 114 are both provided on the side close to the material inlet 111, that is, the gas phase inlet 113 and the gas phase outlet 114 are respectively provided at the bottom and the top of the gas cooling chamber; a liquid phase inlet 115 and a liquid phase outlet 116 are both provided on the other side of the length direction of the cavity 110, that is, the liquid phase inlet 115 and the liquid phase outlet 116 are both provided on one side of the liquid cooling chamber. The gas heat exchange pipe 120 is disposed in the gas cooling chamber, and the liquid heat exchange pipe 130 is disposed in the liquid cooling chamber.

[0039] In one embodiment, the water circulation and gas circulation in the condenser 100 flow and exchange heat through the liquid heat exchange pipe 130 and the gas heat exchange pipe 120 respectively. When the high-temperature material enters the cavity 110, it first passes through the gas circulation heat exchange area. The gas heat exchange pipe 120 is arranged near the end of the high-temperature material inlet 111. After passing through the gas heat exchange pipe 120, the heat is transferred to the air in the gas heat exchange pipe 120. Therefore, the cold air entering the gas circulation heat exchange area will take away part of the heat in the material and become hot air, which is discharged through the gas phase outlet 114. The high-temperature material first passes through the gas heat exchange pipe 120 to take away part of the heat, reducing the cooling burden of the cooling tower 200, and the heat taken away can be used as a heat source for heating or pipeline heating. The material after heat exchange through the gas heat exchange pipe 120 is then heat exchanged through the liquid heat exchange pipe 130, and the low-temperature material after heat exchange is discharged through the material outlet 112. This embodiment can completely separate the gas and the circulating water independently. While the gas takes away the heat, it will not cause the volatilization loss of the circulating water, which has a water-saving effect.

[0040] It should be noted that after the high-temperature material enters the cavity 110, it should first pass through the air heat exchange pipe 120 and then pass through the liquid heat exchange pipe 130, so that the high-temperature material can be initially cooled by the air heat exchange pipe 120. Otherwise, the high-temperature material will first exchange heat with the liquid heat exchange pipe 130, and the problem of heavy burden on the cooling tower 200 cannot be solved. Furthermore, when the temperature controller 500 controls the circulation pump 300 and the fan 400, it gives priority to increasing the air intake of the fan 400, that is, it gives priority to adjusting the air intake of the air heat exchange pipe 120. When the air intake reaches the maximum but still cannot meet the cooling demand, it adjusts the working state of the circulation pump 300 and increases the water intake rate of the circulation pump 300. On the contrary, when the monitoring temperature of the temperature controller 500 is low, it first reduces the water intake rate of the circulation pump 300 and then reduces the air intake of the fan 400.

[0041] In a possible implementation, the gas phase inlet 113 is disposed at the bottom of the cavity 110 , and the gas phase outlet 114 is disposed at the top of the cavity 110 .

[0042] The condenser 100 of the present application is a horizontal shell and tube condenser 100, wherein the high temperature material inlet 111 is arranged on one side of the length direction of the condenser 100. Figure 1 As shown, it is arranged on the left side of the condenser 100, the liquid phase inlet 115 and the liquid phase outlet 116, i.e. the circulating water inlet and the circulating water outlet, are arranged on the right side of the condenser 100, and the liquid phase outlet 116 is arranged on the top of the liquid phase inlet 115. The air heat exchange pipe 120 is arranged on the left side of the liquid heat exchange pipe 130, so that the high-temperature material is first heated by the air heat exchange pipe 120, and then heat-exchanged by the liquid heat exchange pipe 130, and the heat-exchanged material is discharged through the low-temperature material outlet 112 near the bottom of the right side.

[0043] In a possible implementation, a partition 140 is further included. The partition 140 is disposed between the gas heat exchange tube 120 and the liquid heat exchange tube 130 . A preset distance is provided between the top and the bottom of the partition 140 and the inner wall of the cavity 110 .

[0044] A partition 140 is provided between the gas heat exchange tube 120 and the liquid heat exchange tube 130. The partition 140 is used to separate the gas cooling chamber from the liquid cooling chamber, and also serves as a barrier for materials to flow from a preset position into the liquid heat exchange tube 130 region. There is a preset distance between the top and bottom of the partition 140 and the inner wall of the cavity 110 for the materials that have passed through the primary cooling to pass through. The partition 140 is intended to block the transmission of materials and reduce their transmission rate, thereby increasing their heat exchange time and heat exchange effect.

[0045] In a possible implementation, the air heat exchange tube 120 is a straight tube, a coil or a spiral tube, and the liquid heat exchange tube 130 is a U-shaped tube. The forms of the air heat exchange tube 120 and the liquid heat exchange tube 130 can be flexibly set according to actual needs.

[0046] In a possible implementation, the liquid phase outlet 116 is disposed on the top of the liquid phase inlet 115 .

[0047] In one possible implementation, baffles 131 are provided between the liquid heat exchange tubes 130 to increase the distribution area of ​​the circulating water in the liquid heat exchange tubes 130 , slow down the flow rate of the circulating water, and enhance the heat exchange effect.

[0048] In a possible implementation, the ratio of the height of the partition 140 to the height of the cavity 110 is 3:5-4:5, and the height of the partition 140 is greater than the height of the liquid heat exchange tube 130. The material passes through the gap between the upper and lower partitions and the cavity, ensuring that the material can fully exchange heat in the gas heat exchange area without blocking the flow of air to the liquid heat exchange area, reaching a balanced state to achieve the best heat exchange effect. The partition 140 can also be provided with holes for the material to pass through.

[0049] In a possible implementation, the ratio of the liquid heat exchange tube 130 to the cavity 110 in the length direction is 2:5-4:5. The longer the liquid heat exchange tube 130 is, the better the heat exchange effect is.

[0050] In one possible implementation, a baffle 150 is disposed between the bottom of the liquid heat exchange tube 130 and the bottom of the cavity 110, and the material outlet 112 is disposed at the bottom of the baffle 150. The baffle 150 can slow down the heat exchange time of the material in the liquid heat exchange tube 130 area to enable sufficient heat exchange.

[0051] It should be noted that although the present application introduces a chemical material cooling circulation system and a cooling method thereof as an example, those skilled in the art will appreciate that the present application should not be limited thereto. In fact, the user can flexibly set various parameters according to personal preferences and / or actual application scenarios, as long as the design is reasonable.

[0052] In this way, the cooling tower and the condenser are connected in a loop, a circulating pump is arranged between the outlet end of the cooling tower and the liquid phase inlet of the condenser, and a temperature controller and a throttle valve are arranged between the liquid phase outlet of the condenser and the inlet end of the cooling tower, wherein the temperature controller is arranged at one end close to the liquid phase outlet of the condenser, and is used to measure the liquid temperature at the liquid phase outlet end of the condenser. At the same time, a gas phase inlet and a gas phase outlet are arranged on the condenser, and are used to pass cold air for cooling. When the cooling circulation system is working, the temperature controller can monitor the outlet water temperature in real time to control the flow rate of the circulating water pump and the fan. According to the cooling circulation system of the present application, the material is cooled by both air cooling and water cooling, which can reduce the burden on the cooling tower. At the same time, the efficiency of the cooling tower and the condenser can be maximized by controlling the operating status of the circulating water pump and the fan.

[0053] Among them, when the high-temperature material enters the cavity of the condenser, it first passes through the air heat exchange pipe near the inlet end of the high-temperature material, and then transfers the heat to the air in the air heat exchange pipe after passing through the air heat exchange pipe. Therefore, the cold air entering the air circulation heat exchange area will take away part of the heat in the material and become hot air, which is discharged through the gas phase outlet. The material after heat exchange through the air heat exchange pipe will then pass through the liquid heat exchange pipe for heat exchange, and the low-temperature material after heat exchange will be discharged through the material outlet. The high-temperature material first passes through the air heat exchange pipe to take away part of the heat, so that the circulating water temperature at the liquid phase outlet is reduced, reducing the cooling burden on the cooling tower, and the heat taken away can be used as a heat source for heating or pipeline heating. At the same time, the present application can completely separate the gas and circulating water independently. While the gas takes away the heat, it will not cause volatilization loss of circulating water, which has a water-saving effect.

[0054] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A cooling circulation system, characterized in that: include: Cooling towers, circulation pumps, fans, condensers, throttle valves and temperature controllers; The condenser comprises a gas cooling chamber and a liquid cooling chamber which are connected in sequence, the gas cooling chamber is cooled by an air heat exchange tube, and the liquid cooling chamber is cooled by a liquid heat exchange tube; The outlet end of the cooling tower is connected to the liquid phase inlet of the condenser by a pipeline, and the circulating pump is arranged between the outlet end of the cooling tower and the liquid phase inlet of the condenser; The liquid phase outlet of the condenser is connected to the inlet end of the cooling tower by a pipeline, and the throttle valve and the temperature controller are arranged between the liquid phase outlet of the condenser and the inlet end of the cooling tower; The air outlet of the fan is connected to the gas phase inlet of the condenser through a pipeline, and the gas phase outlet of the condenser is suitable for being connected to the heating end; The temperature controller is electrically connected to the circulating water pump and the fan.

2. The cooling circulation system according to claim 1, characterized in that: The temperature controller is arranged at a side close to the liquid phase outlet of the condenser, and the throttle valve is arranged between the temperature controller and the inlet end of the cooling tower.

3. The cooling circulation system according to claim 1, characterized in that: The condenser further comprises: a cavity; The gas cooling chamber and the liquid cooling chamber are both arranged in the cavity; The gas heat exchange tube and the liquid heat exchange tube are both arranged in the cavity; One end of the gas heat exchange pipe is connected to the gas phase inlet, and the other end is connected to the gas phase outlet; One end of the liquid heat exchange tube is connected to the liquid phase inlet, and the other end is connected to the liquid phase outlet.

4. The cooling circulation system according to claim 3, characterized in that: A material inlet is provided on one side of the cavity in the length direction, and a material outlet is provided at the bottom of the cavity. The material outlet is provided at the bottom of the cavity and is away from one side of the material inlet; The gas phase inlet is arranged at the bottom of the cavity, the gas phase outlet is arranged at the top of the cavity, and the gas phase inlet and the gas phase outlet are both arranged on a side close to the material inlet; The liquid phase inlet and the liquid phase outlet are both arranged on the other side of the cavity in the length direction.

5. The cooling circulation system according to claim 1, characterized in that: The condenser further comprises a partition plate, which is arranged between the gas heat exchange tube and the liquid heat exchange tube, and a preset distance is formed between the top and the bottom of the partition plate and the inner wall of the cavity.

6. A method for cooling chemical materials, characterized in that: The cooling circulation system according to any one of claims 1 to 5 is used to cool chemical materials, comprising: The high-temperature material first enters the gas cooling chamber of the condenser for heat exchange to obtain the medium-temperature material; The medium-temperature material then enters the liquid cooling chamber of the condenser for heat exchange; The circulating pump sends the low-temperature circulating water generated by the cooling tower into the condenser to exchange heat with the medium-temperature material, and the high-temperature circulating water after heat exchange is sent to the cooling tower for cooling, and circulates sequentially; The circulating water temperature at the water outlet of the condenser corresponds to the working efficiency of the fan and the circulating pump.

7. The chemical material cooling method according to claim 6, characterized in that: The temperature of the high-temperature circulating water generated at the condenser outlet corresponds to the flow rate of the fan and the circulating pump and also includes: When the temperature of the high-temperature circulating water is greater than a preset temperature, the working efficiency of the fan and the circulating pump is improved; When the temperature of the high-temperature circulating water is low, the working efficiency of the fan and the circulating pump is reduced.

8. The chemical material cooling method according to claim 7, characterized in that: Improving the working efficiency of the fan and the circulating pump also includes: First, the working efficiency of the fan is improved. When the working efficiency of the fan reaches the maximum, if the temperature of the high-temperature circulating water is still greater than the preset temperature, the working efficiency of the circulating pump is improved.

9. The chemical material cooling method according to claim 7, characterized in that: Reducing the working efficiency of the fan and the circulating pump also includes: First, the working efficiency of the circulation pump is gradually reduced, and then the working efficiency of the fan is gradually reduced until the temperature of the high-temperature circulating water is the same as the preset temperature.

10. The chemical material cooling method according to any one of claims 1 to 9, characterized in that: The working efficiency of the fan and the circulating pump is flow rate.

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