CN217585390U - Closed cooling tower - Google Patents
Closed cooling tower Download PDFInfo
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- CN217585390U CN217585390U CN202221435763.5U CN202221435763U CN217585390U CN 217585390 U CN217585390 U CN 217585390U CN 202221435763 U CN202221435763 U CN 202221435763U CN 217585390 U CN217585390 U CN 217585390U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to a closed cooling tower, which is arranged indoors, an air inlet system comprises an air inlet grid arranged on a tower body, an outdoor air inlet duct and an indoor air inlet duct are wrapped outside the air inlet grid, and switch valves are arranged on the outdoor air inlet duct and the indoor air inlet duct; the condensation system comprises antifreeze, a condenser with the antifreeze inside, a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both connected with equipment needing heat exchange so that the antifreeze circulates between the condensation system and the heat exchange equipment to complete cooling of the heat exchange equipment; the air exhaust system comprises an air outlet arranged at the top of the tower body, an air exhaust duct is arranged on the air outlet, a wind shield is arranged in the air exhaust duct, and the wind shield is opened and closed in a one-way mode to prevent outdoor air from entering the tower body through the air exhaust duct. The utility model discloses a closed cooling tower arranges indoor, adopts the antifreeze as the circulation refrigerant, extracts outdoor cold wind when temperature is low and replaces the circulation shower water, can use the cooling tower in the winter in severe cold district, has enlarged the region that the cooling tower cooling is suitable for.
Description
Technical Field
The utility model relates to a cooling tower technical field, concretely relates to closed cooling tower.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
In the fermentation process production, because part of equipment needs to be cooled to generate low-quality heat which does not have recycling value, a cooling tower containing a refrigerant needs to be introduced for cooling treatment in order to maintain the continuous stability of the process production.
The most commonly used refrigerant of the cooling tower in industrial application is circulating cooling water, the circulating cooling water carries heat out through heat exchange with a high-temperature medium in equipment, then the circulating cooling water is sprayed and cooled through the cooling tower, the heat in the circulating cooling water is dissipated, and finally the circulating cooling water is introduced into the equipment to complete refrigerant recycling and heat transfer in the attached equipment.
However, the conventional method is not suitable for the alpine regions, and because the outdoor temperature in winter in the alpine regions can reach more than-30 ℃, the refrigerant is mainly circulating water, the equipment is very easy to freeze and damage in winter in the alpine regions, even if the cooling tower is arranged indoors, the method is limited by large industrial plant area and general overall heat preservation effect, and the equipment is difficult to freeze and damage due to the fact that the environmental temperature in the plant is maintained at more than 0 ℃ for a long time by additionally arranging the heating facility, and the overall operation of the system is influenced.
The air cooling mode is adopted conventionally in equipment cooling in alpine regions, and the purpose of cooling high-temperature media in the equipment is achieved by selecting an air cooling unit. But adopt air-cooled unit, need the air-cooled air heat exchanger of great volume, increase the whole area occupied of equipment, and can improve the purchase cost of equipment, because the limited inner structure of air heat exchanger and the influence such as theory of operation, the heat transfer effect is not as good as water-cooled heat exchanger, and system operating stability is relatively poor.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art existence, the utility model provides a closed cooling tower, applicable winter in cold areas is to the cooling of equipment.
The technical scheme of the utility model is that:
the utility model provides a closed cooling tower which is arranged indoors and comprises a spraying system, a condensing system, an air inlet system and an air exhaust system; the air inlet system comprises an air inlet grille arranged on the tower body, an outdoor air inlet duct and an indoor air inlet duct are wrapped outside the air inlet grille, and switch valves are arranged on the outdoor air inlet duct and the indoor air inlet duct; the condensation system comprises antifreeze, a condenser with the antifreeze inside, a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both connected with heat exchange equipment to be cooled by circulating the antifreeze between the condensation system and the heat exchange equipment; the air exhaust system comprises an air outlet arranged at the top of the tower body, an air exhaust duct is arranged on the air outlet, a wind shield is arranged in the air exhaust duct, and the wind shield is opened and closed in a one-way mode to prevent outdoor air from entering the tower body through the air exhaust duct.
Further, the switch valve comprises a manual gate valve.
Furthermore, the liquid outlet is located at the lower part of the liquid inlet, and a circulating pump is further arranged on a connecting pipeline between the liquid outlet and the heat exchange equipment to accelerate the flow speed of the antifreeze liquid into the heat exchange equipment.
Furthermore, the wind shield is movably connected in the air exhaust duct, and a spring is further arranged at the movable connection part to ensure that the wind shield rebounds smoothly; and a limiting part is also arranged in the air exhaust duct and used for limiting the opening and closing direction of the wind shield.
Furthermore, the exhaust channel is connected to the tower body through a bolt, and a sealing piece is installed at the joint of the exhaust channel and the tower body.
Furthermore, the outdoor air inlet duct is provided with a mounting opening, and the indoor air inlet duct is hermetically mounted on the mounting opening; the outdoor air inlet duct is connected to the tower body through bolts, and a sealing part is installed at the joint of the outdoor air inlet duct and the tower body.
The utility model discloses the beneficial effect who reaches does:
the utility model discloses a closed cooling tower arranges indoor, adopts the antifreeze as the circulation refrigerant, can use the cooling tower cooling in winter in alpine region, has enlarged the regional scope that the cooling tower cooling is suitable for.
Compared with the air cooling unit in the prior art, the closed cooling tower of the utility model can effectively reduce the equipment investment and the equipment floor area; when the air temperature is lower, outdoor cooling air is extracted to replace circulating spray water, the spray water pump can be stopped, and good economic benefits are achieved after upgrading and modification.
The utility model discloses a closed cooling tower, condensing system adopt this kind of liquid refrigerant of antifreeze, and it has better heat transfer effect to compare gas refrigerant, and the condensing system of using antifreeze effectively improves the stability of system operation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure, 100, a spraying system; 200. a condensing system; 210. a condenser; 220. a liquid outlet; 230. a liquid inlet; 240. a circulation pump; 300. an air inlet system; 310. an air inlet grille; 320. an outdoor air inlet duct; 321. an installation port; 322. a first switching valve; 330. an indoor air inlet duct; 331. a second switching valve; 40. an exhaust system; 410. an air outlet; 420. an air exhaust duct; 421. a wind deflector; 422. a stopper; 1. and (4) heat exchange equipment.
Detailed Description
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
To facilitate understanding of the present invention for those skilled in the art, the following description is given with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a closed cooling tower, especially to the unable use of the conventional closed cooling tower in cold areas winter and propose, this closed cooling tower sets up in indoorly, including spraying system 100, condensing system 200, air inlet system 300 and exhaust system 40.
The spraying system 100 comprises a spraying nozzle arranged on the upper part of the tower body and a water tank arranged at the bottom of the tower body, water in the water tank is conveyed to the spraying nozzle through a water pump, the spraying nozzle sprays and cools the condensation system 200, and the sprayed water finally returns to the water tank to form circulating water for use. The spray system 100 is the same principle as the closed cooling tower in the prior art, and the structure is not described in detail here.
The air inlet system 300 comprises an air inlet grille 310 arranged on the tower body, an outdoor air inlet duct 320 and an indoor air inlet duct 330 wrap the air inlet grille 310, and switch valves are arranged on the outdoor air inlet duct 330 and the indoor air inlet duct 330.
Specifically, the outdoor air inlet duct 320 is provided with an installation opening 321, the installation opening 321 is hermetically provided with an indoor air inlet duct 330, in this embodiment, the indoor air inlet duct is connected through a bolt, and a sealing member is arranged at the connection part to prevent air leakage at the connection part; the outdoor air inlet duct 320 is connected to the tower body through a bolt, and a sealing member is installed at the joint.
For the air intake effect, generally, the periphery of the tower body is provided with the air intake grille 310, so the outdoor air intake duct 320 needs to wrap the air intake grille 310 along the periphery. The specific connection mode may be that the mounting port 321 of the outdoor air inlet duct 320 is flanged, the flange is provided with a mounting hole for mounting a screw, the outdoor air inlet duct 320 is connected with the tower body wall through a bolt, in order to ensure the sealing property of the joint, a sealing element is additionally arranged between the flange and the tower body wall, and the sealing element may be sealing rubber or the like.
The switch valve can adopt a manual gate valve, is suitable for the switch at a larger caliber and is convenient to operate. The outdoor air inlet duct 320 and the indoor air inlet duct 330 are not used simultaneously, and the corresponding air inlet duct is selectively opened through the first and second switch valves, in this embodiment, an operation process is illustrated, when the temperature is lower than-15 ℃, the spray pump in the spray system 100 is not started, the first switch valve 322 for inducing air is opened, the second switch valve 331 for communicating indoor air is closed, the tower is cooled by introducing outdoor cold air, when the temperature is higher than 15 ℃, the spray system 100 is started, circulating water is sprayed for cooling, the second switch valve 331 is opened, the first switch valve 322 is closed, indoor air suction is switched, and in a temperature interval of-15 ℃ to 15 ℃, outdoor air induction is adopted for cooling, and meanwhile, the temperature of the anti-freezing fluid is controlled according to the temperature of the circulating water.
The condensing system 200 comprises antifreeze solution, a condenser 210 with antifreeze solution inside, a liquid inlet 230 and a liquid outlet 220, wherein the liquid inlet 230 and the liquid outlet 220 are both connected with the heat exchange equipment 1 to circulate the antifreeze solution between the condensing system 200 and the heat exchange equipment 1 to complete cooling of the heat exchange equipment 1.
Specifically, aiming at the condition that the outdoor temperature in winter in alpine regions can reach more than minus 30 ℃, in order to prevent pipelines from being frozen and blocked when the room temperature is lower in winter, the freezing point of the anti-freezing solution can be minus 40 ℃.
Further, the liquid outlet 220 is located at the lower portion of the liquid inlet 230, and a circulating pump 240 is further disposed on a connection pipeline between the liquid outlet 220 and the heat exchange device 1 to increase the flow speed of the antifreeze solution into the heat exchange device 1.
The operation process of the condensing system 200 is as follows: the circulated antifreeze fluid flows out of the condenser 210 through the liquid outlet 220, then is pressurized by the circulating pump 240 to enter the heat exchange equipment 1 to be heat exchanged with a high-temperature medium in the heat exchange equipment 1, the high-temperature medium releases heat and is converted into a low-temperature medium, and the low-temperature medium continues to work in the heat exchange equipment 1 and is converted into the high-temperature medium to complete the process circulation in the equipment. The low-temperature circulating antifreeze fluid absorbs heat and then is converted into high-temperature circulating antifreeze fluid. The high-temperature circulating antifreeze liquid flows back into the condenser 210 through the liquid inlet 230, is converted into low-temperature circulating antifreeze liquid after being sprayed, cooled and heat-exchanged by spray water in the tower, and completes the heat circulation of the whole system.
The air exhaust system 40 is including setting up in the air outlet 410 at tower body top, and the air duct 420 of airing exhaust is installed on the air outlet 410, sets up a deep bead 421 in the air duct 420 of airing exhaust, and this deep bead 421 sets up to one-way opening and shutting, and deep bead 421 keeps the open mode when having wind to discharge, and deep bead 421 keeps the closed mode when having no wind to discharge, can prevent like this that outdoor cold air from getting into and causing the spray water to freeze in the tower body, influence the whole operation of system.
Specifically, the wind shield 421 is movably connected in the air exhaust duct 420, and a spring is further installed at the movable connection position to ensure that the wind shield 421 rebounds smoothly. The air exhaust duct 420 is further provided with a limiting member 422 for limiting the opening and closing direction of the wind shield 421, the limiting member 422 may be a stopper, and the stopper may be integrated with the air exhaust duct 420, or may be fixed in the air exhaust duct 420 by welding or bonding.
The working state of the closed cooling tower is set to three states, namely a low-temperature state, a medium-temperature state and a high-temperature state sequentially according to the outdoor temperature of the closed cooling tower. For example, the low temperature state is lower than-15 ℃), the medium temperature state is between-15 ℃ and 15 ℃, and the high temperature state is higher than 15 ℃, although the specific temperature setting value range may be specifically set according to the winter temperature of the area and the use condition of the site, and is not limited thereto.
The working principle is as follows:
when the temperature is in a low-temperature state, the spraying system 100 does not work, air cooling is adopted for cooling, the first switch valve 322 opens and closes the second switch valve 331, outdoor air enters the tower through the outdoor air inlet channel, the condensing system 200 works, the condenser 210 is cooled by introducing the outdoor cold air, and the air is discharged from the air outlet 410 at the upper part of the tower top and is exhausted outdoors through the air exhaust channel 420.
When the temperature is in a high-temperature state, the circulating water is adopted for spraying and cooling, the spraying system 100 works, the first switch valve 322 is closed, the second switch valve 331 is opened, the indoor air suction is switched, the condensing system 200 works, the spraying nozzle sprays water to cool the condenser 210 by water, and air and water vapor in the tower are discharged from the air outlet 410 at the upper part of the tower top and are discharged outdoors through the air exhaust duct 420.
The temperature is in a medium temperature state, and an outdoor induced air cooling and water cooling combined mode can be adopted; or an independent outdoor induced air cooling or water cooling mode, and in this state, the temperature of the circulating water needs to be monitored so as to control the working temperature of the antifreeze.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A closed cooling tower is characterized in that: the indoor air conditioner is arranged indoors and comprises a spraying system, a condensing system, an air inlet system and an air exhaust system;
the air inlet system comprises an air inlet grille arranged on the tower body, an outdoor air inlet duct and an indoor air inlet duct are wrapped outside the air inlet grille, and switch valves are arranged on the outdoor air inlet duct and the indoor air inlet duct;
the condensation system comprises antifreeze, a condenser with the antifreeze inside, a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are both connected with heat exchange equipment to be required so that the antifreeze circulates between the condensation system and the heat exchange equipment to complete cooling of the heat exchange equipment;
the air exhaust system comprises an air outlet arranged at the top of the tower body, an air exhaust duct is arranged on the air outlet, a wind shield is arranged in the air exhaust duct, and the wind shield is opened and closed in a one-way mode to prevent outdoor air from entering the tower body through the air exhaust duct.
2. A closed cooling tower according to claim 1, wherein: the switch valve comprises a manual gate valve.
3. A closed cooling tower according to claim 1, wherein: the liquid outlet is located the lower part of inlet, just still be provided with the circulating pump on the connecting line between liquid outlet and the indirect heating equipment in order to accelerate the speed that anti-icing fluid flows into indirect heating equipment.
4. A closed cooling tower according to claim 1, wherein: the wind shield is movably connected in the air exhaust duct, and a spring is further arranged at the movable connection position to ensure that the wind shield rebounds smoothly; and a limiting part is further arranged in the air exhaust duct and used for limiting the opening and closing direction of the wind shield.
5. A closed cooling tower according to claim 1, wherein: the exhaust channel is connected to the tower body through a bolt, and a sealing piece is installed at the joint of the exhaust channel and the tower body.
6. A closed cooling tower according to claim 1, wherein: the outdoor air inlet duct is provided with a mounting opening, and the indoor air inlet duct is hermetically mounted on the mounting opening; the outdoor air inlet duct is connected to the tower body through bolts, and a sealing part is installed at the joint of the outdoor air inlet duct and the tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221435763.5U CN217585390U (en) | 2022-06-08 | 2022-06-08 | Closed cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221435763.5U CN217585390U (en) | 2022-06-08 | 2022-06-08 | Closed cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217585390U true CN217585390U (en) | 2022-10-14 |
Family
ID=83528296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221435763.5U Active CN217585390U (en) | 2022-06-08 | 2022-06-08 | Closed cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217585390U (en) |
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2022
- 2022-06-08 CN CN202221435763.5U patent/CN217585390U/en active Active
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