Fog dissipation assembly

Abstract

The utility model relates to the technical field of cooling towers, in particular to a fog dispersal assembly, which comprises a gas-liquid separation chamber, a throttling device, a condensation module, a circulating water module, a compressor and a defogging module, and utilizes the gravity of a liquid refrigerant and the natural rising characteristic of a gaseous refrigerant to enable the refrigerant to automatically circulate between a separation cavity and a defogging pipe group. Saturated humid and hot air in the cooling tower is changed into low-temperature saturated humid and hot air through the demisting pipe group; meanwhile, a part of water is condensed out, so that the problem of large water evaporation loss is solved; ambient air enters the interlayer and is heated by the coil pipe to form dry and hot air, the dry and hot air flowing out of the interlayer upwards and low-temperature saturated humid and hot air flowing out of the main channel upwards are mixed in the upper cavity, the mixed air is unsaturated air, the unsaturated air is mixed with external ambient air after flowing out of the tower body upwards, a supersaturated state cannot be generated, and the fog dispersal effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a mist elimination component. Background Art

[0002] Cooling towers can be divided into open cooling towers and closed cooling towers according to whether water and air are in direct contact. There are two major problems in the operation of open cooling towers: water evaporation loss and the resulting environmental atomization phenomenon.

[0003] (1) Water evaporation loss problem: Cooling towers cool circulating water through evaporation. This process causes a large amount of water to evaporate into the atmosphere. Evaporation loss is particularly serious, especially in dry and high temperature climate conditions.

[0004] (2) Environmental fogging problem: The large amount of water vapor discharged by the cooling tower will form "white fog" around the tower after being cooled. This phenomenon not only affects the surrounding visual environment and reduces visibility, but the fog may also contain chemicals in the circulating water, causing potential pollution to the local environment. In addition, the fog may also affect the operating efficiency and life of surrounding equipment. For example, the efficiency of solar panels will decrease due to shading. Summary of the invention

[0005] The technical problem to be solved by the utility model is: in order to solve the deficiencies in the prior art, a mist elimination component is provided.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a demisting component, comprising: a demisting module;

[0007] The defogger module comprises a defogger seat, a defogger pipe group and a coil. The defogger seat is arranged between the filler and the water collector inside the tower body, so that a lower cavity is formed between the lower end surface of the defogger seat and the filler, and an upper cavity is formed between the upper end surface of the defogger seat and the water collector. A main channel runs through the defogger seat from top to bottom, and the lower cavity is connected with the upper cavity through the main channel. A defogger pipe group for cooling is arranged in the main channel, and an interlayer is formed between the outer peripheral wall of the defogger seat and the inner peripheral wall of the tower body. The lower end of the interlayer is blocked, and the upper end of the interlayer is connected with the upper cavity. A coil for heating is arranged in the interlayer, and an upper air inlet connected with the interlayer is opened at the interlayer.

[0008] Furthermore, it also includes a gas-liquid separation chamber, the demisting pipe group is located below the gas-liquid separation chamber, the gas-liquid separation chamber has a closed separation chamber inside, the separation chamber contains liquid refrigerant, and the space above the liquid level of the liquid refrigerant in the separation chamber is a steam zone;

[0009] The bottom end of the separation chamber is connected with a first liquid port, and the steam zone is connected with a first gaseous port;

[0010] The demisting pipe group is connected with a second inlet and a second outlet; the first liquid port is connected with the second inlet through a pipeline, and the second outlet is connected with the first gaseous port through a pipeline.

[0011] Furthermore, the demister pipe group includes a left pipe box, a demister pipe and a right pipe box, the interior of the left pipe box is divided into an inflow area and an outflow area by a partition, and the outflow area is located above the inflow area;

[0012] The second inlet is arranged at the lower end of the left pipe box and communicates with the inflow area;

[0013] The second outlet is arranged at the upper end of the left pipe box and is connected with the outflow area;

[0014] The left pipe box and the right pipe box are fixed in the main channel, the left end of a part of the demister pipes is connected to the inflow area, the left end of another part of the demister pipes is connected to the outflow area, and the right end of the demister pipes is connected to the right pipe box.

[0015] Furthermore, it also includes a condensation module 4 and a circulating water module 6;

[0016] The bottom end of the separation chamber is connected with a second liquid port, and the steam zone is connected with a second gaseous port;

[0017] The condensation module has a condensation box located above the gas-liquid separation chamber, and the condensation box has a shell cavity and a tube cavity that exchange heat with each other and are isolated from each other;

[0018] The working medium inlet of the shell cavity is connected to the outlet of the coil through the circulating water module, and the working medium outlet of the shell cavity is connected to the inlet of the coil through the circulating water module, and the coil contains liquid working medium;

[0019] The second gaseous port is communicated with the steam inlet of the compressor through a pipeline, the steam outlet of the compressor is communicated with the refrigerant inlet of the tube cavity through a pipeline, and the refrigerant outlet of the tube cavity is communicated with the second liquid port through a pipeline.

[0020] Furthermore, the lumen is divided into a gaseous region and a liquid region by a separation plate, and the gaseous region is located above the liquid region;

[0021] The refrigerant inlet is arranged above the gaseous region and communicated with the gaseous region;

[0022] The refrigerant outlet is arranged below the liquid zone and communicates with the liquid zone;

[0023] A plurality of condensing tubes are arranged in the shell cavity. The condensing tubes are U-shaped, and one end of the condensing tubes is connected to the gaseous area, and the other end is connected to the liquid area.

[0024] Further, the circulating water module comprises a shell and a circulating pump, wherein a support plate is provided in the shell, wherein the support plate divides the shell into an installation cavity and a reflux cavity, wherein the installation cavity is located above the reflux cavity, and the circulating pump is installed in the installation cavity;

[0025] The reflux chamber has a reflux inlet and a reflux outlet, the outlet of the coil is connected to the reflux inlet of the reflux chamber through a pipeline, the reflux outlet of the reflux chamber is connected to the working medium inlet of the shell chamber through a pipeline, the working medium outlet of the shell chamber is connected to the pump inlet of the circulation pump through a pipeline, and the pump outlet of the circulation pump is connected to the inlet of the coil through a pipeline.

[0026] Furthermore, a throttling device is included, the refrigerant outlet of the tube cavity is connected through a pipeline throttling device, and the throttling device is connected to the second liquid port through a pipeline.

[0027] Furthermore, the throttling device is located below the condensation module and above the gas-liquid separation chamber;

[0028] The throttling device comprises an expansion valve, the refrigerant outlet of the tube cavity is communicated with the valve inlet of the expansion valve through a pipeline, and the valve outlet of the expansion valve is communicated with the second liquid port through a pipeline.

[0029] The beneficial effects of the utility model are as follows: the utility model utilizes the gravity of liquid refrigerant and the natural rising characteristics of gaseous refrigerant to make the refrigerant automatically circulate between the separation chamber and the defogger pipe group, so that the saturated hot and humid air in the cooling tower is converted into low-temperature saturated hot and humid air through the defogger pipe group; at the same time, a part of water is condensed to solve the problem of large evaporation loss of water; ambient air enters the interlayer and is heated by the coil to form dry hot air, the dry hot air flowing out of the interlayer upwards is mixed with the low-temperature saturated hot and humid air flowing out of the main channel upwards in the upper chamber, the mixed air is unsaturated air, and after flowing out of the tower body upwards, it is mixed with the external ambient air, and no oversaturation state is produced, thereby achieving a defogger effect.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 It is a schematic diagram of the mist elimination component of the utility model;

[0033] Figure 2 It is a three-dimensional schematic diagram of the demisting module, compressor, condensing module, circulating water module, throttling device, support frame and solar panel working together;

[0034] Figure 3It is a three-dimensional schematic diagram of the pipe connection of the demisting module, the compressor, the condensing module, the circulating water module and the throttling device;

[0035] Figure 4 It is a schematic diagram of the principle of the utility model;

[0036] Figure 5 is a schematic cross-sectional view of a gas-liquid separation chamber;

[0037] Figure 6 is a schematic diagram of the connection between the demisting module and the gas-liquid separation chamber;

[0038] Figure 7 It is a schematic diagram of the installation of the demister seat in the tower body;

[0039] Figure 8 It is a three-dimensional schematic diagram of the defogger seat;

[0040] Fig. 9 It is a three-dimensional schematic diagram of the circulating water module;

[0041] Fig.10 is a three-dimensional cross-sectional schematic diagram of a condensation module;

[0042] Fig.11 is a three-dimensional cross-sectional schematic diagram of a circulating water module;

[0043] Fig.12 It is a three-dimensional schematic diagram of the throttling device.

[0044] In the figure: 1, support frame, 2, gas-liquid separation chamber, 2-1, first liquid port, 2-2, separation chamber, 2-3, second gas port, 2-4, second liquid port, 2-5, first gas port;

[0045] 3. throttling device, 3-1, expansion valve, 3-2, valve outlet, 3-3, valve inlet;

[0046] 4, condensation module, 4-1, shell cavity, 4-2, working fluid inlet, 4-3, working fluid outlet, 4-4, refrigerant inlet, 4-5, tube cavity, 4-6, range plate, 4-7, condenser tube, 4-8, refrigerant outlet;

[0047] 5. Solar panels;

[0048] 6. circulating water module, 6-1. shell, 6-2. reflux outlet, 6-3. reflux inlet, 6-4. pump inlet, 6-5. pump outlet, 6-7. circulating pump, 6-8. support plate;

[0049] 7. Compressor, 7-1, steam inlet, 7-2, steam outlet;

[0050] 8. Demisting module, 8-1. second inlet, 8-2. left pipe box, 8-3. second outlet, 8-4. demisting pipe, 8-5. right pipe box, 8-6. demisting seat, 8-61. main channel, 8-7. coil, 8-8. partition, 8-9. interlayer;

[0051] 9. water collection tank, 10. air duct, 11. fan, 12. water collector;

[0052] 13. tower body, 13-1. lower cavity, 13-2. middle cavity, 13-3. upper cavity;

[0053] 14. Upper air inlet, 15. Lower air inlet, 16. Spraying device, 17. Filling. DETAILED DESCRIPTION

[0054] The present invention is now described in further detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not adopted in a restrictive sense, and the scope of the subject matter for which protection is sought is limited only by the attached claims and their equivalents.

[0055] like Figure 1-12 As shown, a demisting assembly includes a demisting module 8;

[0056] The defogger module 8 comprises a defogger seat 8-6, a defogger pipe group and a coil 8-7. The defogger seat 8-6 is arranged between the filler 17 and the water collector 12 inside the tower body 13, so that a lower cavity 13-1 is formed between the lower end surface of the defogger seat 8-6 and the filler 17, and an upper cavity 13-2 is formed between the upper end surface of the defogger seat 8-6 and the water collector 12. A main channel 8-61 runs through the defogger seat 8-6 from top to bottom, and the lower cavity 13-1 is connected to the upper cavity 13-2 through the main channel 8-61. A defogger pipe group for cooling is arranged in the main channel 8-61. The outer peripheral wall of the defogger seat 8-6 is connected to the tower body. An interlayer 8-9 is formed between the inner peripheral walls of 13, and the lower end of the interlayer 8-9 is blocked so that the gas in the lower cavity 13-1 cannot enter the interlayer 8-9 through the lower end of the interlayer 8-9. The upper end of the interlayer 8-9 is open and connected to the upper cavity 13-2. A coil 8-7 for heating is arranged in the interlayer 8-9. The coil 8-7 is sleeved outside the defogger seat 8-6, and the coil 8-7 does not contact the defogger seat 8-6. The coil 8-7 can also be an electrically heated coil 8-7 or a coil 8-7 with a liquid working fluid as a heat source. An upper air inlet 14 connected to the interlayer 8-9 is provided.

[0057] In this embodiment, the airflow continues to flow upward after passing through the filler 17 to reach the lower chamber 13-1, and is collected from the lower chamber 13-1 to the main channel 8-61 of the defogger module 8. The saturated humid hot air out of the filler 17 contacts the outer wall of the defogger pipe group when passing through the main channel 8-61, and is cooled, so that the saturated humid hot air out of the filler 17 becomes low-temperature saturated humid hot air; at the same time, part of the water is condensed to solve the problem of large evaporation loss of water. After passing through the main channel 8-61, the airflow continues to flow upward to reach the upper chamber 13-2;

[0058] Ambient air enters the interlayer 8-9 from the upper air inlet 14 under the action of the fan 11, and is heated by the coil 8-7 to form dry hot air. The dry hot air flowing out of the interlayer 8-9 upwards is mixed with the low-temperature saturated humid hot air flowing out of the main channel 8-61 upwards in the upper cavity 13-2. The mixed air is unsaturated air, and after flowing out of the tower body 13 upwards, it mixes with the external ambient air, and will not produce an oversaturated state, thereby achieving a defogging effect. Figure 7 As shown, Figure 7 In the figure, the solid arrows represent the flow direction of dry hot air, and the hollow arrows represent the flow direction of saturated moist hot air after leaving the filler 17.

[0059] Hot dry air mixes with cold, saturated hot moist air:

[0060] (1) Dry hot air refers to air with higher temperature but lower humidity, which contains less water vapor;

[0061] (2) Low-temperature saturated moist air refers to air that has a lower temperature but already contains the maximum amount of water vapor to reach a saturated state;

[0062] (3) Mixing of dry hot air and low-temperature saturated moist hot air: When the two are mixed, if the temperature of the mixed air is higher than the dew point temperature, that is, the temperature of the moist air before mixing, then the mixed air will be able to accommodate more water vapor without reaching saturation, so the mixed air is unsaturated.

[0063] After the unsaturated air leaves the tower, it mixes with the ambient air:

[0064] (1) Unsaturated air means that its water vapor partial pressure is lower than the saturated vapor pressure at that temperature and it has the ability to absorb more water vapor;

[0065] (2) The condition of the external ambient air, temperature and humidity, determines the final state after mixing. If the external air is also unsaturated, or even if it is saturated but the temperature is high enough, the air may still remain unsaturated after mixing;

[0066] (3) There will be no supersaturation state, that is, no white fog will be generated, which means that there is no excess water vapor condensing into water droplets during the mixing process, because the temperature conditions are not sufficient to allow the water vapor in the air to exceed its saturation limit; white fog is usually formed in a supersaturated state, when excess water vapor condenses into tiny water droplets suspended in the air.

[0067] In some examples, a gas-liquid separation chamber is further included, the demisting pipe group is located below the gas-liquid separation chamber 2, the gas-liquid separation chamber 2 has a sealed separation chamber 2-2 inside, the separation chamber 2-2 contains liquid refrigerant, and the space above the liquid surface of the liquid refrigerant in the separation chamber 2-2 is a steam zone;

[0068] The bottom end of the separation chamber 2-2 is connected to a first liquid port 2-1, and the steam region is connected to a first gas port 2-5;

[0069] The demister pipe group is connected with a second inlet 8-1 and a second outlet 8-3; the first liquid port 2-1 is connected with the second inlet 8-1 through a pipeline, and the second outlet 8-3 is connected with the first gas port 2-5 through a pipeline.

[0070] The low-temperature and low-pressure liquid refrigerant in the separation chamber 2-2 flows out from the first liquid port 2-1 and flows into the defogger tube group through the second inlet 8-1. The low-temperature and low-pressure liquid refrigerant in the defogger tube group exchanges heat with the airflow in the main channel 8-61 to reduce the airflow temperature, so that the saturated humid hot air in the lower chamber 13-1 of the filler 17 becomes low-temperature saturated humid hot air, and a part of water is condensed at the same time. Then the low-temperature saturated humid hot air enters the upper chamber 13-2. The low-temperature and low-pressure liquid refrigerant in the defogger tube group absorbs heat and vaporizes into low-pressure refrigerant vapor. The low-pressure refrigerant vapor flows into the second outlet 8-3 and returns to the steam area of ​​the separation chamber 2-2 through the first gaseous port 2-5.

[0071] The design of the demister pipe group being located below the gas-liquid separation chamber 2 and the design of the steam zone in the separation chamber 2-2 enable the refrigerant circulation between the separation chamber 2-2 and the demister pipe group to be realized by the thermosiphon phenomenon generated by the liquid column pressure and density difference of the refrigerant. Figure 6 As shown, the height difference between the steam generated by evaporation and the liquid column formed by condensation is used to naturally drive the fluid circulation, which reduces energy consumption and maintenance costs. Specifically:

[0072] After the low-temperature and low-pressure liquid refrigerant absorbs the heat of the airflow in the main channel 8-61, it becomes a low-pressure refrigerant vapor, its temperature rises, its volume expands, and its density decreases. The hotter and lighter fluid will naturally rise, while the colder and denser fluid will sink, forming a driving force for the cycle. The rising hot fluid and the descending cold fluid form a natural convection cycle in the system without the intervention of an external pump. Such a cycle can transfer heat very effectively within the system.

[0073] The demister pipe group includes a left pipe box 8-2, a demister pipe 8-4 and a right pipe box 8-5. The interior of the left pipe box 8-2 is divided into an inflow area and an outflow area by a partition 8-8. The outflow area is located above the inflow area.

[0074] The second inlet 8-1 is disposed at the lower end of the left pipe box 8-2 and communicates with the inflow area;

[0075] The second outlet 8-3 is provided at the upper end of the left pipe box 8-2 and communicates with the outflow area;

[0076] The left tube box 8-2 and the right tube box 8-5 are fixed in the main channel 8-61, the left end of a part of the defogger tube 8-4 is connected to the inflow area, the left end of the other part of the defogger tube 8-4 is connected to the outflow area, and the right end of the defogger tube 8-4 is connected to the right tube box 8-5.

[0077] The low-temperature and low-pressure liquid refrigerant in the separation chamber 2-2 flows out from the first liquid port 2-1, flows into the inflow area at the lower end of the left tube box 8-2 through the second inlet 8-1, and then enters the demister pipe 8-4. The low-temperature and low-pressure liquid refrigerant in the demister pipe 8-4 exchanges heat with the air flow in the main channel 8-61, so that the saturated humid hot air in the tower body 13 of the packing 17 becomes low-temperature saturated humid hot air, and at the same time, a part of water is condensed. The low-temperature and low-pressure liquid refrigerant in the demister pipe 8-4 After absorbing heat, the liquid refrigerant vaporizes into low-pressure refrigerant vapor. The low-pressure refrigerant vapor in the defogger pipe 8-4 connected to the inflow area flows to the right into the right pipe box 8-5, and then flows to the left from the right pipe box 8-5 through the defogger pipe 8-4 connected to the outflow area, reaching the outflow area at the upper end of the left pipe box 8-2, and flows upward from the outflow area at the upper end of the left pipe box 8-2 through the second outlet 8-3, reaching the second gaseous port 2-5, to return to the steam area of ​​the separation chamber 2-2.

[0078] The cross section of the defogger pipe 8-4 can be elliptical, and each defogger pipe 8-4 can be distributed in multiple rows. The defogger pipes 8-4 in two adjacent rows are staggered, which can increase air turbulence, reduce heat transfer dead zones, improve heat exchange effects, and also facilitate the discharge of liquid after condensation of humid hot air.

[0079] In some examples, such as Figure 3 As shown, it also includes a condensation module 4 and a circulating water module 6;

[0080] The bottom end of the separation chamber 2-2 is connected with a second liquid port 2-4, the second liquid port 2-4 is immersed in the liquid refrigerant in the separation chamber 2-2, and the vapor region is connected with a second gas port 2-3;

[0081] The condensation module 4 has a condensation box located above the gas-liquid separation chamber 2, and the condensation box has a shell cavity 4-1 and a tube cavity 4-5 that exchange heat with each other and are isolated from each other;

[0082] The working medium inlet 4-2 of the shell cavity 4-1 is connected to the outlet of the coil 8-7 through the circulating water module 6, and the working medium outlet 4-3 of the shell cavity 4-1 is connected to the inlet of the coil 8-7 through the circulating water module 6. The coil 8-7 contains liquid working medium, which may be water.

[0083] The second gas port 2-3 is connected to the steam inlet 7-1 of the compressor 7 through a pipeline, the steam outlet 7-2 of the compressor 7 is connected to the refrigerant inlet 4-4 of the tube cavity 4-5 through a pipeline, and the refrigerant outlet 4-8 of the tube cavity 4-5 is connected to the second liquid port 2-4 through a pipeline.

[0084] like Figure 3 and 10 As shown, the lumen 4-5 is divided into a gaseous region and a liquid region by a partition plate 4-6, and the gaseous region is located above the liquid region;

[0085] The refrigerant inlet 4-4 is arranged above the gaseous region and communicates with the gaseous region;

[0086] The refrigerant outlet 4-8 is arranged below the liquid region and communicates with the liquid region;

[0087] A plurality of condensation tubes 4-7 are arranged in the shell cavity 4-1. The condensation tubes 4-7 are U-shaped, and one end of the condensation tubes 4-7 is connected to the gaseous area, and the other end is connected to the liquid area.

[0088] The circulating water module 6 includes a housing 6-1 and a circulating pump 6-7. The housing 6-1 has a support plate 6-8. The support plate 6-8 divides the housing 6-1 into an installation cavity and a reflux cavity. The installation cavity is located above the reflux cavity. The circulating pump 6-7 is installed in the installation cavity. The liquid working medium in the reflux cavity can dissipate heat from the circulating pump 6-7 in the installation cavity, and the heat of the circulating pump 6-7 can also be used to heat the hydraulic working medium in the reflux cavity.

[0089] The reflux chamber has a reflux inlet 6-3 and a reflux outlet 6-2. The outlet of the coil 8-7 is connected to the reflux inlet 6-3 of the reflux chamber through a pipeline. The reflux outlet 6-2 of the reflux chamber is connected to the working fluid inlet 4-2 of the shell chamber 4-1 through a pipeline. The working fluid outlet 4-3 of the shell chamber 4-1 is connected to the pump inlet 6-4 of the circulation pump 6-7 through a pipeline. The pump outlet 6-5 of the circulation pump 6-7 is connected to the inlet of the coil 8-7 through a pipeline.

[0090] The low-pressure refrigerant vapor in the steam zone in the separation chamber 2-2 is compressed into high-temperature and high-pressure refrigerant vapor by the compressor 7. This process increases the temperature and pressure of the refrigerant, which means that when the refrigerant enters the condensing module 4, it can release more heat energy, thereby more effectively heating the liquid working medium coming out of the coil 8-7, so that the heat absorbed by the inlet temperature adjustment module 1 and the defogger module 8 can be used to heat the coil 8-7, thereby improving energy utilization, and also allowing the refrigerant vapor to be converted back into liquid refrigerant and returned to the separation chamber 2-2. The compressor 7 provides power for the circulation of the refrigerant, which ensures that the refrigerant forms a closed loop between the separation chamber 2-2, the compressor 7, the condensing module 4 and the throttling device 3, and continuously performs a cycle of heat absorption and release.

[0091] like Figure 3 and 12 As shown, a throttling device 3 is also included, and the refrigerant outlet 4-8 of the tube cavity 4-5 is connected through the pipeline throttling device 3, and the throttling device 3 is connected with the second liquid port 2-4 through a pipeline.

[0092] The throttling device 3 is located below the condensing module 4 and above the gas-liquid separation chamber 2;

[0093] The throttling device 3 includes an expansion valve 3-1, a refrigerant outlet 4-8 of the tube cavity 4-5 is connected to the valve inlet 3-3 of the expansion valve 3-1 through a pipeline, and a valve outlet 3-2 of the expansion valve 3-1 is connected to the second liquid port 2-4 through a pipeline.

[0094] The compressor 7 may be a centrifugal compressor 7, the expansion valve 3-1 may be an electronic expansion valve 3-1, and the circulation pump 6-7 may be a centrifugal pump.

[0095] The second gaseous port 2-3 and the first gaseous port 2-5 can be installed with a 90° elbow in the steam area. When the low-pressure refrigerant vapor flows through the 90° elbow, the flow direction changes, and the liquid refrigerant mixed in the low-pressure refrigerant vapor can be separated to prevent the liquid refrigerant from entering the compressor 7, causing liquid hammer, and at the same time avoid the compression efficiency reduction caused by carrying liquid droplets;

[0096] The circulation path of the refrigerant between the separation chamber 2-2, the compressor 7, the condensation module 4 and the circulating water module 6 is as follows:

[0097] The low-pressure refrigerant vapor flows upward from the second gaseous port 2-3 of the steam zone, and enters the compressor 7 from the steam inlet 7-1. The compressor 7 performs work on the low-pressure refrigerant vapor, so that the low-pressure refrigerant vapor is compressed. In this process, the volume of the low-pressure refrigerant vapor decreases, while its pressure and temperature increase, so it is compressed into high-temperature and high-pressure refrigerant vapor, and flows out from the steam outlet 7-2 of the compressor 7;

[0098] The high-temperature and high-pressure refrigerant vapor flows upward from the vapor outlet 7-2, flows from the refrigerant inlet 4-4 into the gaseous area of ​​the tube cavity 4-5 in the condensing module 4, and then flows into the liquid area below through the condensing tube 4-7. During this period, the heat of the high-temperature and high-pressure refrigerant vapor is absorbed by the liquid working medium in the shell cavity 4-1, and condenses into high-pressure liquid refrigerant and flows downward from the refrigerant outlet 4-8;

[0099] The high-pressure liquid refrigerant flowing downward from the refrigerant outlet 4-8 reaches the expansion valve 3-1 of the throttling device 3 through the valve inlet 3-3 to form a low-temperature and low-pressure gas-liquid two-phase mixed refrigerant, and then flows downward from the valve outlet 3-2 to the second liquid port 2-4 to enter the separation chamber 2-2 to separate the gas and liquid into a low-temperature and low-pressure liquid refrigerant;

[0100] The low-temperature liquid working medium enters the shell cavity 4-1 from the working medium inlet 4-2 at the bottom of the shell cavity 4-1, and becomes a high-temperature liquid working medium after absorbing the heat of the high-temperature and high-pressure refrigerant vapor on the outer wall of the condenser 4-7. The high-temperature liquid working medium flows upward from the working medium outlet 4-3, and then reaches the circulation pump 6-7 from the pump inlet 6-4. The circulation pump 6-7 pumps the high-temperature liquid working medium from the pump outlet 6-5 into the coil 8-7. Under the action of the fan 11, fresh ambient air flows into the interlayer 8-9 from the upper air inlet 14, and exchanges heat with the high-temperature liquid working medium in the coil 8-7. After the high-temperature liquid working medium absorbs heat and becomes a low-temperature liquid working medium, it flows out of the coil 8-7, and then flows into the reflux chamber from the reflux inlet 6-3. The low-temperature liquid working medium in the reflux chamber flows into the working medium inlet 4-2 from the reflux outlet 6-2, forming a cycle.

[0101] In this embodiment, the demisting module 8, the compressor 7, the condensing module 4, the circulating water module 6 and the throttling device 3 can all be fixed on the support frame 9, and the solar cell panel 5 can be installed on the top of the support frame 9.

[0102] The working principle of the above low temperature and high efficiency cooling tower is:

[0103] (1) If Figure 7 As shown, the airflow in the tower body 13 continues to flow upward after passing through the filler 17 to reach the lower chamber 13-1, and is gathered from the lower chamber 13-1 to the main channel 8-61 of the demisting module 8. The saturated humid hot air out of the filler 17 will contact the outer wall of the demisting pipe group when passing through the main channel 8-61, and is cooled, so that the saturated humid hot air out of the filler 17 becomes low-temperature saturated humid hot air; at the same time, part of the water is condensed to solve the problem of large water evaporation loss. After passing through the main channel 8-61, the airflow continues to flow upward to reach the upper chamber 13-2, and passes through the upper chamber 13-2;

[0104] (2) Ambient air enters the interlayer 8-9 from the upper air inlet 14 under the action of the fan 11, and is heated by the coil 8-7 to form dry hot air. The dry hot air flowing upward out of the interlayer 8-9 is mixed with the low-temperature saturated humid hot air flowing upward out of the main channel 8-61 in the upper chamber 13-2. The mixed air is unsaturated air. After flowing upward out of the tower body 13, it mixes with the external ambient air without producing an oversaturated state, thereby achieving a defogging effect.

[0105] (3) The low-pressure refrigerant vapor in the steam zone of the separation chamber 2-2 passes through the compressor 7 and the condensing module 4, which can not only effectively heat the liquid working medium coming out of the coil 8-7, but also enable the heat absorbed by the demisting module 8 to be used to heat the coil 8-7, thereby improving energy utilization, and also enable the refrigerant vapor to be converted back into liquid refrigerant and return to the separation chamber 2-2.

[0106] The above-mentioned ideal embodiments of the utility model are inspirations. Through the above-mentioned description, relevant staff can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of the utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mist elimination component, characterized in that: include: Defogging module (8); The demisting module (8) comprises a demisting seat (8-6), a demisting pipe group and a coil (8-7); the demisting seat (8-6) is arranged between a filler (17) and a water collector (12) inside a tower body (13), so that a lower cavity (13-1) is formed between a lower end surface of the demisting seat (8-6) and the filler (17), and an upper cavity (13-2) is formed between an upper end surface of the demisting seat (8-6) and the water collector (12); a main channel (8-61) runs through the demisting seat (8-6) from top to bottom, and the lower cavity (13-1) It is connected to the upper chamber (13-2) through a main channel (8-61), a defogger pipe group for cooling is arranged in the main channel (8-61), an interlayer (8-9) is formed between the outer peripheral wall of the defogger seat (8-6) and the inner peripheral wall of the tower body (13), the lower end of the interlayer (8-9) is blocked, and the upper end of the interlayer (8-9) is connected to the upper chamber (13-2), a coil (8-7) for heating is arranged in the interlayer (8-9), and an upper air inlet (14) connected thereto is opened at the interlayer (8-9).

2. The mist elimination assembly according to claim 1, characterized in that: It also comprises a gas-liquid separation chamber (2), the demisting pipe group is located below the gas-liquid separation chamber (2), the gas-liquid separation chamber (2) has a sealed separation chamber (2-2) inside, the separation chamber (2-2) contains liquid refrigerant, and the space above the liquid surface of the liquid refrigerant in the separation chamber (2-2) is a steam zone; The bottom end of the separation chamber (2-2) is connected to a first liquid port (2-1), and the steam zone is connected to a first gas port (2-5); The demisting pipe group is connected to a second inlet (8-1) and a second outlet (8-3); the first liquid port (2-1) is connected to the second inlet (8-1) through a pipeline, and the second outlet (8-3) is connected to the first gas port (2-5) through a pipeline.

3. The mist elimination assembly according to claim 2, characterized in that: The demisting pipe group comprises a left pipe box (8-2), a demisting pipe (8-4) and a right pipe box (8-5); the interior of the left pipe box (8-2) is divided into an inflow area and an outflow area by a partition (8-8); the outflow area is located above the inflow area; The second inlet (8-1) is arranged at the lower end of the left pipe box (8-2) and is connected to the inflow area; The second outlet (8-3) is arranged at the upper end of the left pipe box (8-2) and is connected to the outflow area; The left pipe box (8-2) and the right pipe box (8-5) are fixed in the main channel (8-61); the left end of a portion of the demister pipes (8-4) is connected to the inflow area, the left end of another portion of the demister pipes (8-4) is connected to the outflow area, and the right end of the demister pipes (8-4) is connected to the right pipe box (8-5).

4. The mist elimination assembly according to claim 2, characterized in that: It also includes a condensation module (4) and a circulating water module (6); The bottom end of the separation chamber (2-2) is connected to a second liquid port (2-4), and the steam zone is connected to a second gas port (2-3); The condensation module (4) comprises a condensation box located above the gas-liquid separation chamber (2), wherein the condensation box comprises a shell cavity (4-1) and a tube cavity (4-5) which are heat-exchangeable and isolated from each other. The working medium inlet (4-2) of the shell cavity (4-1) is connected to the outlet of the coil (8-7) through the circulating water module (6), the working medium outlet (4-3) of the shell cavity (4-1) is connected to the inlet of the coil (8-7) through the circulating water module (6), and the coil (8-7) contains liquid working medium; The second gaseous port (2-3) is connected to the steam inlet (7-1) of the compressor (7) through a pipeline, the steam outlet (7-2) of the compressor (7) is connected to the refrigerant inlet (4-4) of the tube cavity (4-5) through a pipeline, and the refrigerant outlet (4-8) of the tube cavity (4-5) is connected to the second liquid port (2-4) through a pipeline.

5. The mist elimination assembly according to claim 4, characterized in that: The tube cavity (4-5) is divided into a gaseous area and a liquid area by a separation plate (4-6), and the gaseous area is located above the liquid area; The refrigerant inlet (4-4) is arranged above the gaseous region and communicated with the gaseous region; The refrigerant outlet (4-8) is arranged below the liquid area and communicates with the liquid area; A plurality of condensation tubes (4-7) are arranged in the shell cavity (4-1); the condensation tubes (4-7) are U-shaped, and one end of the condensation tubes (4-7) is connected to the gaseous region, and the other end is connected to the liquid region.

6. The mist elimination assembly according to claim 4, characterized in that: The circulating water module (6) comprises a housing (6-1) and a circulating pump (6-7); a support plate (6-8) is provided in the housing (6-1); the support plate (6-8) divides the housing (6-1) into an installation cavity and a reflux cavity; the installation cavity is located above the reflux cavity; and the circulating pump (6-7) is installed in the installation cavity; The reflux chamber has a reflux inlet (6-3) and a reflux outlet (6-2); the outlet of the coil (8-7) is connected to the reflux inlet (6-3) of the reflux chamber via a pipeline; the reflux outlet (6-2) of the reflux chamber is connected to the working fluid inlet (4-2) of the shell chamber (4-1) via a pipeline; the working fluid outlet (4-3) of the shell chamber (4-1) is connected to the pump inlet (6-4) of the circulation pump (6-7) via a pipeline; and the pump outlet (6-5) of the circulation pump (6-7) is connected to the inlet of the coil (8-7) via a pipeline.

7. The mist elimination assembly according to claim 4, characterized in that: It also includes a throttling device (3), the refrigerant outlet (4-8) of the tube cavity (4-5) is connected through the pipeline throttling device (3), and the throttling device (3) is connected to the second liquid port (2-4) through a pipeline.

8. The mist elimination assembly according to claim 7, characterized in that: The throttling device (3) is located below the condensation module (4) and above the gas-liquid separation chamber (2); The throttling device (3) comprises an expansion valve (3-1); a refrigerant outlet (4-8) of the tube cavity (4-5) is connected to a valve inlet (3-3) of the expansion valve (3-1) through a pipeline; and a valve outlet (3-2) of the expansion valve (3-1) is connected to a second liquid port (2-4) through a pipeline.

Images