An energy-saving composite steam condensation system

Abstract

The present invention discloses an energy-saving composite steam condensation system, comprising a heat exchanger, a fan and a silencer. The heat exchanger comprises, from top to bottom, a first heat exchange chamber, a second heat exchange chamber and a third heat exchange chamber which are independent of each other. The steam inlet of the heat exchanger is arranged on the first heat exchange chamber. The first heat exchange chamber is provided with a horizontal first heat exchange tube. The second heat exchange tube is used to connect the first heat exchange chamber and the third heat exchange chamber. The third heat exchange chamber is provided with a horizontal third heat exchange tube. The present invention can achieve an ideal condensation effect through four condensation devices. All components in the whole process are intelligently monitored and controlled by an electrical controller. The system has a high degree of data visualization, is easy to use and has a good condensation effect. The condensation effect is better than that of a traditional condensation device. The heat can be collected and utilized again, and the system is environmentally friendly and intelligent.

Description

Technical Field

[0001] The invention relates to the field of winemaking equipment, and in particular to an energy-saving composite steam condensation system. Background Art

[0002] In existing winemaking chemical equipment, the high-temperature steam from fermentation and distillation needs to be condensed into liquid wine using a condenser. Existing equipment generally uses water-cooled condensation, but the water-cooling method has inevitable disadvantages, serious waste of water resources, low cost-effectiveness, and uncontrollable wine output temperature, which affects the quality of the brewed wine. When air cooling is used, due to different ambient temperatures, sometimes the condenser needs to be preheated before work so that the entire system can enter the working state faster, or air cooling alone cannot provide sufficient cooling, such as the disclosed patent (CN103411442A).

[0003] Therefore, current brewing equipment still has the problems of low condensation efficiency and uncontrolled condensation temperature. Summary of the invention

[0004] The purpose of the present invention is to provide an energy-saving composite steam condensation system, which uses automatic control principles to adopt multi-stage heat exchange, saves water, increases heat exchange rate, and controls the final condensation temperature.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] An energy-saving composite steam condensation system includes a controller, a refrigerator, a heat exchanger, and a fan arranged on the heat exchanger, wherein the heat exchanger includes:

[0007] a sealed first heat exchange cavity, a first heat exchange tube arranged in the first heat exchange cavity,

[0008] A sealed third heat exchange chamber, a third heat exchange tube arranged in the third heat exchange chamber,

[0009] a second heat exchange cavity, a plurality of independent second heat exchange tubes arranged in the second heat exchange cavity, one end of the second heat exchange tubes being connected to the first heat exchange cavity, and the other end of the second heat exchange tubes being connected to the third heat exchange cavity,

[0010] The bottom of the heat exchanger is provided with an air inlet, the top of the fan is an air outlet, and the air inlet, the second heat exchange chamber and the air outlet constitute a circulating air duct;

[0011] The outlet of the first heat exchange tube, the inside of the second heat exchange tube, and the outlet of the third heat exchange tube are respectively provided with temperature sensors, the inlet of the first heat exchange tube is provided with a valve, and the inlet of the third heat exchange tube is connected to the refrigerator.

[0012] The controller collects the temperature values ​​of the temperature sensors respectively, and controls the opening of the valve and the switch of the refrigerator.

[0013] In the above technical solution, the energy-saving composite heat exchanger according to claim 1 is characterized in that the heat exchange cavity as a whole is an axisymmetric structure, and is a through hollow structure from one end of the heat exchange cavity to the other end along the axis.

[0014] In the above technical solution, the first heat exchange tube and the third heat exchange tube are horizontal structures and are arranged in the first heat exchange cavity and the third heat exchange cavity respectively.

[0015] In the above technical solution, the second heat exchange tube is used to connect the first heat exchange chamber and the third heat exchange chamber.

[0016] In the above technical solution, the first heat exchange chamber, the second heat exchange tube and the third heat exchange chamber are all connected and sealed chambers.

[0017] In the above technical solution, the second heat exchange tube is a vertical tube or a spiral tube.

[0018] In the above technical solution, a plurality of evenly distributed fins are arranged on the outer wall of the second heat exchange tube.

[0019] In the above technical solution, a spray component is provided on the inner wall of the second heat exchange chamber, and the spray component sprays toward the second heat exchange tube.

[0020] In the above technical solution, a control method is provided, comprising the following steps:

[0021] S1: high temperature medium hot steam enters the first heat exchange chamber through the air inlet and exchanges heat with the first heat exchange tube;

[0022] S2: After the heat exchange, the hot steam condenses and enters the second heat exchange tube in liquid form, and then enters the third heat exchange chamber through the second heat exchange tube;

[0023] S3: After the liquid flowing out of the second heat exchange tube is sprayed on the third heat exchange tube for heat exchange, the condensed liquid is stored;

[0024] In the process from S1 to S3, the controller controls the medium flow rate for heat exchange according to the temperature value feedback of the temperature sensor of the heat exchange tube in each heat exchange cavity, and adopts progressive condition control for the first heat exchange cavity, the second heat exchange cavity, and the third heat exchange cavity.

[0025] In the above technical solution,

[0026] When the feedback value of the temperature sensor disposed in the first heat exchange tube is greater than the first preset value of the controller, the fan is turned on, and the fan draws external air into the heat exchanger from the bottom of the heat exchanger, so that gas convection is formed from the bottom to the top of the heat exchanger, and heat exchange is performed with the surface of the heat exchange tube in the second heat exchange chamber;

[0027] When the feedback value of the temperature sensor arranged at the bottom of the second heat exchange tube is greater than the second preset value of the controller, the controller controls the valve of the spray assembly to open, and the spray assembly sprays toward the second heat exchange tube;

[0028] When the feedback value of the temperature sensor arranged at the outlet of the third heat exchange tube is greater than the third preset value of the controller, the controller controls the refrigerator to circulate the refrigerant in the third heat exchange tube;

[0029] The first preset value, the second preset value, and the third preset value decrease gradually.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] The present invention utilizes three-stage heat exchange to exchange the heat of high-temperature steam to the greatest extent and effectively obtain ideal condensate;

[0032] The present invention utilizes a control system and a refrigerator during the condensation process, thereby obtaining condensate and saving a large amount of water;

[0033] The system of the present invention adopts the automatic control principle, monitors the temperature of each level in the heat exchanger in real time and adjusts the flow rate and flow velocity of the condensed liquid in real time according to the temperature feedback, which greatly improves the heat exchange efficiency;

[0034] The present invention can achieve an ideal condensation effect through four condensing devices. All components in the whole process are intelligently monitored and controlled by an electrical controller. The data has a high degree of visualization, is easy to use, and has a good condensation effect. The condensation effect is better than that of traditional condensing devices. The heat can be collected and utilized again, and it is more environmentally friendly and intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0036] Figure 1 is a schematic diagram of the heat exchanger structure;

[0037] Figure 2 It is the system control principle block diagram;

[0038] Among them: 1 is the fan, 2 is the first heat exchange chamber, 3 is the first heat exchange tube, 4 is the second heat exchange tube, 5 is the second heat exchange chamber, 6 is the spray assembly, 7 is the third heat exchange tube, 8 is the third heat exchange chamber, and 9 is the confluence trough. DETAILED DESCRIPTION

[0039] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0040] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0041] like Figure 1 As shown, the heat exchanger in this embodiment includes a closed heat exchange cavity. The entire heat exchange cavity is an axisymmetric structure. The heat exchange cavity is a through hollow structure from one end to the other end along the axis. The specific structure of the entire heat exchange cavity includes:

[0042] The first heat exchange chamber 2 is at the top of the heat exchanger axis and is distributed around the through hollow structure. The entire first heat exchange chamber 2 is a closed chamber and is not connected to the hollow structure. The first heat exchange tube 3 is arranged in a horizontal structure in the first heat exchange chamber 2, and cold water is circulated in the first heat exchange tube 3. The first heat exchange chamber 2 is the first part for high-temperature steam to exchange heat when entering the heat exchanger. Through heat exchange with the cold water in the first heat exchange tube 3, the high-temperature steam is condensed into high-temperature liquid in the first heat exchange chamber 2.

[0043] The second heat exchange chamber 5 is an open chamber, and a plurality of second heat exchange tubes 4 are arranged in the second heat exchange chamber 5, and the second heat exchange tubes 4 are used to connect the first heat exchange chamber 2 and the third heat exchange chamber 8. When the high-temperature steam is condensed into high-temperature liquid in the first heat exchange chamber 2, the high-temperature liquid will flow into the second heat exchange tube 4. When the fan 1 is working, the external air is drawn in from the air inlet at the bottom of the heat exchanger, and the cold air exchanges heat with the second heat exchange tube 4 in the second heat exchange chamber 5, and the hot air is ejected from the top of the heat exchanger.

[0044] In order to increase the heat exchange effect, a number of fins are evenly arranged on the outer wall of the second heat exchange tube 4 to increase the surface area of ​​the second heat exchange tube 4, thereby increasing the heat exchange efficiency. Considering the limitations of the efficiency of air-cooled heat exchange, this embodiment adds water-cooled heat exchange on the basis of air cooling. A spray assembly 6 is arranged on the inner wall of the second heat exchange chamber 5, and the spray assembly 6 sprays cold water to the second heat exchange tube 4, and uses cold water to perform heat exchange on the second heat exchange tube 4. The sprayed water is discharged from the air inlet after heat exchange and recovered by the confluence groove 9.

[0045] The third heat exchange chamber 8 is located at the top of the heat exchanger in the axial direction, and is distributed around the through hollow structure. The entire third heat exchange chamber 8 is a closed chamber and is not connected to the hollow structure. The third heat exchange tube 7 is arranged in a horizontal distribution structure in the third heat exchange chamber 8. The third heat exchange tube 7 uses an external refrigerator to provide refrigerant. The flow rate and temperature of the refrigerant are controlled through the temperature feedback of the temperature sensor, so as to achieve the final heat exchange of the liquid entering the third heat exchange chamber 8 from the second heat exchange tube 4. The liquid after heat exchange is the final target liquid, which is discharged and stored by the heat exchanger.

[0046] In this embodiment, the first heat exchange chamber 2, the second heat exchange tube 4, and the third heat exchange chamber 8 are a closed integrated structure, and are mutually sealed inside; the three are not connected to the second heat exchange chamber 5 and the hollow structure.

[0047] In this embodiment, the first heat exchange tube 3 uses water cooling to exchange heat, the second heat exchange chamber 5 uses a combination of air cooling and water cooling to exchange heat on the second heat exchange tube 4, and the third heat exchange tube 7 uses refrigerant to exchange heat.

[0048] In this embodiment, in order to further increase the heat exchange efficiency, a vertical pipe, a regular spiral pipe, or a Z-shaped pipe with other arc-shaped shapes can be used for the second heat exchange tube 4, which is used to increase the distance of the entire second heat exchange tube 4 between the first heat exchange chamber 2 and the third heat exchange chamber 8, thereby improving the heat exchange efficiency.

[0049] In this embodiment, the high-temperature steam undergoes four heat exchanges from entering the first heat exchange chamber 2 to being discharged from the third heat exchange chamber 8, and finally reaches the target temperature.

[0050] like Figure 2 The control principle block diagram of the system is shown in FIG.

[0051] When high-temperature steam enters from the inlet of the first heat exchange chamber, it contacts the first heat exchange tube in the first heat exchange chamber. The inlet of the first heat exchange tube is controlled by a valve. The controller opens the valve to inject normal temperature water into the first heat exchange tube. After heat exchange, the high-temperature water flows out from the outlet of the first heat exchange tube, and the hot water is collected for standby use. In the process of hot water flowing out, a temperature sensor is set at the outlet, and the controller collects the temperature value of the temperature sensor. The controller controls the opening of the valve according to the temperature value, and adjusts the water flow rate and flow rate entering the first heat exchange tube, so as to fully realize the heat exchange between cold water and high-temperature steam, so that the temperature of the hot water flowing out is controlled between 90℃-95℃.

[0052] In the first heat exchange chamber, when the high-temperature steam condenses into liquid after heat exchange, the liquid enters the second heat exchange tube. The controller controls the fan to turn on. The fan draws air from the outside of the heat exchanger from the bottom and blows it out from the top of the heat exchanger, so that the cold air forms convection between the second heat exchange chamber and the outside, thereby realizing heat exchange for the second heat exchange tube. When the wind (air) reaches the upper end, it changes from the original cold air to hot air. Considering that this process is loud and will generate noise, adding a muffler and a sound-absorbing insulation layer can effectively avoid it. The temperature of the liquid flowing through the lower end of the second heat exchange tube is sensed by a temperature sensor set in the second heat exchange chamber. If the temperature is too high, the parameters of the fan are set by the electrical controller to increase the air volume, and vice versa.

[0053] When the temperature sensor in the second heat exchange cavity detects that the temperature of the second heat exchange tube after air cooling is still too high, the controller controls the spray assembly in the second heat exchange cavity to spray cold water on the second heat exchange tube to achieve heat exchange again in the second heat exchange tube. The spray water flow rate is controlled by adjusting the spray valve, and the sprayed water is in a spray state, so as to achieve further cooling and condensation effect. Part of the sprayed water is discharged through the heat seal by the wind with the air, and a small part of the spray condenses into water droplets and falls into the liquid confluence trough and is discharged. If it is found that there is too much water in the spray water confluence trough, it can be controlled by inputting parameters of the electrical controller.

[0054] A temperature sensor is provided in the third heat exchange tube. The controller controls the refrigerator to input refrigerant to the third heat exchange tube according to the temperature feedback value of the temperature sensor, and further exchanges heat with the liquid coming out of the second heat exchange tube through the refrigerant. The controller controls the refrigerator to control the flow rate and flow of the refrigerant in real time according to the temperature feedback value of the temperature sensor.

[0055] After heat exchange in the third heat exchange chamber, the final cooled liquid is output for collection.

[0056] In this embodiment, after the first heat exchange chamber, the second heat exchange chamber, and the third heat exchange chamber sequentially and gradually exchange heat with the high-temperature steam, the high-temperature steam is gradually condensed into a predetermined liquid.

[0057] In this embodiment, the controller collects the temperature of each temperature sensor in the heat exchange chamber in real time, and makes corresponding real-time control over the valve, spray assembly, and refrigerator, thereby achieving effective control of the heat exchange efficiency during the heat exchange process.

[0058] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An energy-saving composite steam condensation system, characterized in that: It includes a controller, a refrigerator, a heat exchanger and a fan arranged on the heat exchanger, and the heat exchanger includes: a sealed first heat exchange cavity (2), a first heat exchange tube (3) arranged in the first heat exchange cavity, a sealed third heat exchange chamber (8), a third heat exchange tube (7) arranged in the third heat exchange chamber, a second heat exchange chamber (5), a plurality of independent second heat exchange tubes (4) arranged in the second heat exchange chamber, one end of the second heat exchange tube being connected to the first heat exchange chamber and the other end being connected to the third heat exchange chamber, The second heat exchange chamber (5) is an axisymmetric structure as a whole, and is a through hollow structure from the first heat exchange chamber (2) to the third heat exchange chamber (8) along the axis. The bottom of the heat exchanger is provided with an air inlet, the top of the fan is an air outlet, and the air inlet, the second heat exchange chamber and the air outlet constitute a circulating air duct; The outlet of the first heat exchange tube (3), the inside of the second heat exchange tube (4), and the outlet of the third heat exchange tube (7) are respectively provided with temperature sensors, the inlet of the first heat exchange tube is provided with a valve, and the inlet of the third heat exchange tube is connected to the refrigerator. The controller collects the temperature values ​​of the temperature sensors respectively, and controls the opening of the valve and the switch of the refrigerator; The heat exchange process using this structure is as follows: S1: high-temperature medium hot steam enters the first heat exchange chamber (2) through the air inlet and performs heat exchange with the first heat exchange tube (3); S2: After the heat exchange, the hot steam is condensed and enters the second heat exchange tube (4) in liquid form, and then enters the third heat exchange chamber (8) through the second heat exchange tube (4); S3: the liquid flowing out of the second heat exchange tube (4) is sprayed on the third heat exchange tube (7) for heat exchange, and the condensed liquid is stored; In the process from S1 to S3, the controller controls the medium flow rate for heat exchange according to the temperature value feedback of the temperature sensor of the heat exchange tube in each heat exchange cavity, and adopts progressive condition control for the first heat exchange cavity, the second heat exchange cavity, and the third heat exchange cavity.

2. The energy-saving composite steam condensation system according to claim 1, characterized in that: The first heat exchange tube (3) and the third heat exchange tube (7) are horizontal structures and are arranged in the first heat exchange cavity (2) and the third heat exchange cavity (8) respectively.

3. The energy-saving composite steam condensation system according to claim 1, characterized in that: The second heat exchange tube (4) is used to connect the first heat exchange chamber (2) and the third heat exchange chamber (8).

4. The energy-saving composite steam condensation system according to claim 3, characterized in that: The first heat exchange chamber (2), the second heat exchange tube (4) and the third heat exchange chamber (8) are closed chambers that are interconnected and integrated.

5. The energy-saving composite steam condensation system according to claim 3, characterized in that: The second heat exchange tube (4) is a vertical tube, or a spiral tube.

6. The energy-saving composite steam condensation system according to claim 1, characterized in that: A plurality of evenly distributed fins are provided on the outer wall of the second heat exchange tube (4).

7. The energy-saving composite steam condensation system according to claim 1, characterized in that: The inner wall of the second heat exchange chamber is provided with a spray component (6), and the spray component sprays towards the second heat exchange tube.

8. The energy-saving composite steam condensation system according to claim 7, characterized in that: When the feedback value of the temperature sensor disposed in the first heat exchange tube (3) is greater than a first preset value of the controller, the fan is turned on, and the fan draws external air into the heat exchanger from the bottom of the heat exchanger, so that gas convection is formed from the bottom to the top of the heat exchanger, and heat exchange is performed with the surface of the heat exchange tube in the second heat exchange chamber (5); When the feedback value of the temperature sensor arranged at the bottom of the second heat exchange tube (4) is greater than the second preset value of the controller, the controller controls the valve of the spray assembly to open, and the spray assembly sprays toward the second heat exchange tube (4); When the feedback value of the temperature sensor arranged at the outlet of the third heat exchange tube (7) is greater than the third preset value of the controller, the controller controls the refrigerator to circulate the refrigerant in the third heat exchange tube (7); The first preset value, the second preset value, and the third preset value decrease gradually.

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