CN212778735U - Anti-icing energy-saving cooling tower - Google Patents
Anti-icing energy-saving cooling tower Download PDFInfo
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- CN212778735U CN212778735U CN202023011184.1U CN202023011184U CN212778735U CN 212778735 U CN212778735 U CN 212778735U CN 202023011184 U CN202023011184 U CN 202023011184U CN 212778735 U CN212778735 U CN 212778735U
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Abstract
The utility model discloses an anti-icing energy-saving cooling tower relates to cooling arrangement technical field, and the purpose prevents that the cooling tower from freezing on making the basis of cooling tower system saving electric energy. The utility model discloses a main technical scheme does: an anti-icing energy-saving cooling tower comprising: the fan is arranged at the air outlet, the packing layer and the annular cavity are arranged up and down, the annular cavity is in an inverted truncated cone shape, the air inlet pipes respectively penetrate through the side wall of the tower body, the outer side wall of the annular cavity and the inner side wall of the annular cavity in sequence, the water inlet pipes comprise a first water inlet pipe and a second water inlet pipe, the first water inlet pipe extends to the inner space of the tower body above the packing layer, the second water inlet pipe is connected to the outer side wall of the annular cavity, and a plurality of water spray holes are uniformly distributed in; the output of temperature sensor of intaking is connected in acquisition controller's input, and fan frequency conversion controller's input is connected in acquisition controller's output, and fan frequency conversion controller's output is connected in the fan.
Description
Technical Field
The utility model relates to a cooling arrangement technical field especially relates to an anti-icing energy-saving cooling tower.
Background
The cooling tower is a chemical device commonly used by chemical enterprises, waste heat generated in the production process of chemical products is generally guided away by cooling water, and the cooling tower has the function of exchanging heat between the cooling water carrying the waste heat and air in the tower so that the waste heat is transmitted to the air and is diffused into the atmosphere. In cold seasons, when the cooling tower is used, the problem of icing is generally existed, and the cooling tower can not normally run.
In addition, in a cooling water system of a common cooling tower system, a circulating water pump and a fan are started at a fixed frequency, air speed regulation is not carried out according to load requirements, and circulating water is excessively cooled particularly in winter or when the environmental temperature is low, so that the cooling water system wastes electric energy for a long time.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an anti-icing energy-saving cooling tower, the main objective is on making the basis of cooling tower system saving electric energy, prevents that the cooling tower from freezing.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the utility model provides an anti-icing energy-saving cooling tower, it includes: the device comprises a tower body, a heat exchange part and a control part;
the tower body is arranged above the water pool, an air outlet is formed in the upper end of the tower body, and an air inlet is formed in the lower end side of the tower body;
the heat exchange part comprises a fan, a packing layer, an annular cavity, a water inlet pipe and a plurality of air inlet pipes, the fan is installed at the air outlet, the packing layer and the annular cavity are arranged in the tower body above the air inlet from top to bottom, the outer contour of the annular cavity is in an inverted frustum shape, the air inlet pipes sequentially penetrate through the side wall of the tower body, the outer side wall of the annular cavity and the inner side wall of the annular cavity respectively, the water inlet pipe comprises a first water inlet pipe and a second water inlet pipe, the first water inlet pipe extends to the inner space of the tower body above the packing layer, the second water inlet pipe is connected to the outer side wall of the annular cavity, and a plurality of water spray holes are uniformly distributed in the inner side wall of the;
control part includes acquisition controller, temperature sensor and fan frequency conversion controller of intaking, the temperature sensor of intaking install in first inlet tube, the output of temperature sensor of intaking connect in acquisition controller's input, fan frequency conversion controller's input connect in acquisition controller's output, fan frequency conversion controller's output connect in the fan.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, the air inlet pipe inclines from the tower body side wall to the inner side wall of the annular cavity.
Optionally, the heat exchanging part further comprises a plurality of spiral spray heads, and each spiral spray head is mounted at one of the water spray holes.
Optionally, the heat exchange portion further comprises a spray ring pipe, the spray ring pipe is located right above the packing layer, the spray ring pipe is connected to the first water inlet pipe, and a plurality of spray heads are uniformly distributed on the spray ring pipe.
Optionally, the air inlet further comprises a plurality of louver blades, and the louver blades are sequentially rotatably mounted on the air inlet.
Optionally, the water-saving device further comprises a water outlet pipe and a water level sensor, wherein one end of the water outlet pipe is connected to the lower end side of the water pool, the other end of the water outlet pipe is connected to the water delivery pump, the water level sensor is installed in the water pool, the output end of the water level sensor is connected to the input end of the acquisition controller, and the output end of the acquisition controller is connected to the water delivery pump.
Optionally, the control part further comprises an external temperature sensor, and an output end of the external temperature sensor is connected to an input end of the acquisition controller.
Optionally, the air outlet is connected to the air duct, and the fan is installed in the air duct.
Optionally, the shutter device further comprises a stepping motor, and the stepping motor drives the plurality of shutters to rotate through a link mechanism.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
the heat exchange process of the circulating water in the heat exchange equipment is completed, and a part of circulating water backwater reaches the upper part of the packing layer through the first water inlet pipe and flows downwards through the packing layer; and the other part of circulating backwater enters the annular cavity through the second water inlet pipe, and because the inner side wall of the annular cavity is an inclined annular surface, the other part of circulating backwater is obliquely and upwards sprayed out through the plurality of water spraying holes, so that the heat exchange time of the other part of circulating water and air is prolonged. Meanwhile, due to the upward air suction effect of the fan, a part of external cold air sequentially passes through the air inlet and the lower port of the annular cavity and moves upwards; the other part of the outside cold air reaches the middle part of the annular cavity through the air inlet pipe and moves upwards.
In the process, the two parts of air flow upwards, so that the air and the two parts of circulating water return water perform countercurrent heat exchange. The moisture after the heat transfer in the tower body finally flows down along the inclined plane of the inside wall of annular cavity, avoids the circulating water after the cooling to be close to the air intake, avoids the circulating water to freeze in air intake department.
In winter, because the other part of circulating water backwater (the backwater has certain temperature) is directly sprayed to the middle part of the annular cavity, the lower space temperature in the middle part of the annular cavity is avoided, and the inner side wall of the annular cavity and the lower surface of the packing layer are prevented from being frozen. Meanwhile, the other part of outside air directly reaches the middle part of the annular cavity through the air inlet pipe, so that cooling water drops falling from the packing layer are scattered and disturbed, the two parts of circulating backwater are fully mixed, the part of air flow is continuously blown out to the middle part of the annular cavity, the circulating backwater is prevented from flowing into the air inlet pipe, and the air inlet pipe is prevented from being frozen.
The water inlet temperature sensor detects the temperature of the circulating water backwater entering the tower body constantly, the temperature value is converted into an electric signal and is transmitted to the acquisition controller, the acquisition controller sends a control instruction to the fan variable frequency controller according to the electric signal, and the fan variable frequency controller controls the rotating speed of the fan, so that the contact speed of the circulating water backwater and the air in the tower body is controlled, and the heat exchange speed of the circulating water backwater and the air is controlled.
Drawings
Fig. 1 is a schematic structural diagram of an anti-icing energy-saving cooling tower provided by an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic perspective view of an annular cavity provided in an embodiment of the present invention;
fig. 4 is a schematic view of a rotation structure of a blind according to an embodiment of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a tower body 1, a water tank 2, a packing layer 3, an annular cavity 4, an air inlet pipe 5, a first water inlet pipe 6, a second water inlet pipe 7, a water spray hole 8, an acquisition controller 9, a water inlet temperature sensor 10, fan blades 11, a driving motor 12, a spiral spray head 13, a spray ring pipe 14, a spray head 15, shutter shutters 16, a water outlet pipe 17, a water level sensor 18, a water delivery pump 19, an external temperature sensor 20, an air duct 21, a stepping motor 22, a connecting rod mechanism 23, a driving rocker 231, a driven rocker 232 and a connecting rod 233.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides an anti-icing energy-saving cooling tower, which includes: the device comprises a tower body 1, a heat exchange part and a control part;
the tower body 1 is arranged above the water pool 2, an air outlet is formed in the upper end of the tower body 1, and an air inlet is formed in the lower end side of the tower body 1;
the heat exchange part comprises a fan, a packing layer 3, an annular cavity 4, a water inlet pipe and a plurality of air inlet pipes 5, the fan is installed at the air outlet, the packing layer 3 and the annular cavity 4 are vertically arranged in the tower body 1 above the air inlet, the outer contour of the annular cavity 4 is in an inverted circular truncated cone shape, the air inlet pipes 5 sequentially penetrate through the side wall of the tower body 1, the outer side wall of the annular cavity 4 and the inner side wall of the annular cavity 4 respectively, the water inlet pipes comprise a first water inlet pipe 6 and a second water inlet pipe 7, the first water inlet pipe 6 extends to the inner space of the tower body 1 above the packing layer 3, the second water inlet pipe 7 is connected to the outer side wall of the annular cavity 4, and a plurality of water spray holes 8 are uniformly distributed in the inner side wall of the annular cavity 4;
control portion includes acquisition controller 9, temperature sensor 10 and fan frequency conversion controller of intaking, temperature sensor 10 install in first inlet tube 6 of intaking, the output of temperature sensor 10 of intaking connect in acquisition controller 9's input, fan frequency conversion controller's input connect in acquisition controller 9's output, fan frequency conversion controller's output connect in the fan.
The working process of the anti-icing energy-saving cooling tower is as follows:
the heat exchange process of the circulating water in the heat exchange equipment is completed, and a part of circulating water backwater reaches the upper part of the packing layer 3 through the first water inlet pipe 6 and flows downwards through the packing layer 3; and the other part of circulating backwater enters the annular cavity 4 through the second water inlet pipe 7, and because the inner side wall of the annular cavity 4 is an inclined annular surface, the other part of circulating backwater is obliquely and upwards sprayed out through the plurality of water spraying holes 8, so that the heat exchange time of the other part of circulating backwater and air is prolonged. Meanwhile, due to the upward air suction effect of the fan, a part of external cold air sequentially passes through the air inlet and the lower port of the annular cavity 4 and moves upwards; another part of the external cold air reaches the middle part of the annular cavity 4 through the air inlet pipe 5 and moves upwards.
In the process, the two parts of air flow upwards, so that the air and the two parts of circulating water return water perform countercurrent heat exchange. The moisture after the heat transfer in the tower body 1 finally flows down to the pond 2 along the inclined plane of the inside wall of annular cavity 4 in, avoids the circulating water after the cooling to be close to the air intake, avoids air intake department to freeze.
In winter, because the other part of circulating water backwater (the backwater has a certain temperature) is directly sprayed to the middle part of the annular cavity 4, the lower space temperature in the middle part of the annular cavity 4 is avoided, and the inner side wall of the annular cavity 4 and the lower surface of the packing layer 3 are prevented from being frozen. Meanwhile, the other part of outside air directly reaches the middle part of the annular cavity 4 through the air inlet pipe 5, so that cooling water drops falling from the packing layer 3 are scattered and disturbed, the two parts of circulating backwater are fully mixed, and the part of air flow is continuously blown out to the middle part of the annular cavity 4, so that the circulating backwater is prevented from flowing into the air inlet pipe 5, and the freezing in the air inlet pipe 5 is avoided.
When the tower is used in summer, the temperature of the outside air is high, the valve of the second water inlet pipe 7 is closed without preventing the tower body 1 from freezing, and all the circulating backwater falls from the upper part of the packing layer 3.
The water inlet temperature sensor 10 detects the temperature of the circulating water backwater entering the tower body 1 from time to time, converts the temperature value into an electric signal and transmits the electric signal to the acquisition controller 9, the acquisition controller 9 sends a control instruction to the fan variable frequency controller according to the electric signal, and the fan variable frequency controller controls the rotating speed of the fan, so that the contact speed of the circulating water backwater and the air in the tower body 1 is controlled, and the heat exchange speed of the circulating water backwater and the air is controlled.
The technical scheme of the utility model in, according to the actual temperature condition of circulating water, the fan is with variable power operation, avoids the fan to operate with maximum power always, saves the electric energy. Meanwhile, in winter, when the outside temperature is low, the heat of the circulating water backwater is utilized to prevent the space of the tower body 1 below the packing layer 3 from being frozen, and the damage of the tower body 1 is avoided.
Specifically, the fan includes fan blade 11, reduction gears and driving motor 12, driving motor 12's output shaft coaxial coupling is in reduction gears's input, and reduction gears's output flat key connects in fan blade 11.
Specifically, the outer edge of the upper end of the annular cavity 4 is hermetically connected to the inner side wall of the tower body 1, so that circulating backwater falling through the packing layer 3 can only fall along the inclined surface of the inner side wall of the annular cavity 4, and thus the circulating backwater is prevented from flowing to the air inlet of the tower body 1, and the air inlet is prevented from being frozen.
In the embodiment shown in fig. 1, the air inlet pipe 5 is inclined from the tower body 1 side wall to the inner side wall of the annular chamber 4.
In the present embodiment, specifically, the outside air flows into the middle of the annular chamber 4 through the air inlet duct 5. Meanwhile, even if a small amount of cooling water is temporarily accumulated at the inner port of the air inlet pipe 5, the cooling water cannot flow into the air inlet pipe 5 obliquely upward along the air inlet pipe 5, so that the freezing in the air inlet pipe 5 is further avoided.
As shown in fig. 1 and 2, in the specific embodiment, the heat exchanging part further includes a plurality of spiral spray heads 13, and each spiral spray head 13 is installed at one of the water spray holes 8.
In the embodiment, specifically, the other part of the circulating backwater is sprayed out through the spiral spray nozzle 13, so that the dispersibility of backwater water drops is improved, and the efficiency of heat loss of the backwater is improved.
As shown in fig. 1, in the specific embodiment, the heat exchanging part further includes a spray ring pipe 14, the spray ring pipe 14 is located right above the packing layer 3, the spray ring pipe 14 is connected to the first water inlet pipe 6, and a plurality of spray headers 15 are uniformly distributed on the spray ring pipe 14.
In the embodiment, specifically, a part of the circulating backwater flows to the spray ring pipe 14 and is sprayed out through the plurality of spray heads 15, so that the part of the circulating backwater is annularly sprayed out above the packing layer 3, so that the part of the circulating backwater fully contacts the packing layer 3, the retention time of the part of the circulating backwater in the packing layer 3 is prolonged to a greater extent, and the heat exchange efficiency is improved.
As shown in fig. 1, in the embodiment, the air conditioner further includes a plurality of louver blades 16, and the louver blades 16 are sequentially rotatably installed on the air inlet.
In the present embodiment, specifically, the plurality of louver blades 16 are sequentially rotated to change the gap between adjacent louver blades 16, thereby changing the air flow rate of the air inlet. Under the condition that the rotating speed of the fan is fixed, the air flow of the air outlet is stable and unchanged, the air flow flux of the air inlet is reduced, and the air circulation speed of the air inlet pipe 5 is increased, so that the collision force of flowing air on circulating water return water drops is enhanced in the middle of the annular cavity 4, the dispersion degree of the water drops is further promoted, and the heat exchange and cooling effects of the circulating water return water are further improved.
As shown in fig. 1, in a specific embodiment, the water collecting device further includes a water outlet pipe 17 and a water level sensor 18, one end of the water outlet pipe 17 is connected to the lower end side of the water tank 2, the other end of the water outlet pipe is connected to a water delivery pump 19, the water level sensor 18 is installed in the water tank 2, an output end of the water level sensor 18 is connected to an input end of the collecting controller 9, and an output end of the collecting controller 9 is connected to the water delivery pump 19.
In the present embodiment, specifically, in order to stably control the water level in the water tank 2, the water level sensor 18 constantly detects the liquid level in the water tank 2, converts the liquid level into an electric signal, transmits the electric signal to the collection controller 9, and the collection controller 9 transmits a control command to the water transfer pump 19 to control the output power of the water transfer pump 19, thereby controlling the liquid level in the water tank 2 to be stable.
Specifically, the output end of the acquisition controller 9 is connected to the input end of the variable frequency controller of the water delivery pump 19, and the output end of the variable frequency controller of the water delivery pump 19 is connected to the junction box of the water delivery pump 19.
As shown in fig. 1, in a specific embodiment, the control portion further includes an external temperature sensor 20, and an output end of the external temperature sensor 20 is connected to an input end of the acquisition controller 9.
In this embodiment, specifically, the external temperature sensor 20 and the water inlet temperature sensor 10 are connected to the collection controller 9 at the same time, a comparator is integrated in the collection controller 9, and the comparator adjusts the output power of the fan according to the difference between the external temperature and the water inlet temperature. When the difference between the inlet water temperature and the external temperature is not large, the output power of the fan is reduced; when the difference between the inlet water temperature and the external temperature is large, the output power of the fan is improved.
As shown in fig. 1, in the specific embodiment, the air outlet is connected to an air duct 21, and the fan is installed in the air duct 21.
In this embodiment, specifically, the fan is installed in the air duct 21, and is configured to guide the airflow generated by the fan, so as to improve the directionality of the airflow in the tower body 1, improve the directionality of heat transfer, and improve the cooling efficiency of the circulating water.
As shown in fig. 4, in the embodiment, a stepping motor 22 is further included, and the stepping motor 22 drives a plurality of louvers 16 to rotate through a link mechanism 23.
In the present embodiment, specifically, the output end of the acquisition controller 9 is connected to the stepping motor 22; the driving end of the link mechanism 23 is fixedly connected to the output shaft of the stepping motor 22, and the driven end of the link mechanism 23 is fixedly connected to the rotating shafts of the louvers 16. The acquisition controller 9 controls the step angle and the rotational direction of the stepping motor 22, thereby controlling the rotational direction and the rotational angle of the louver blades 16 to change the gap of the adjacent louver blades 16, thereby controlling the air flow rate of the air intake.
Specifically, the link mechanism 23 includes a driving rocker 231, a plurality of driven rockers 232 and a link 233, one end of the driving rocker 231 is fixedly connected to the output shaft of the stepping motor 22, one end of each of the driven rockers 232 is fixedly connected to the rotating shaft of one of the louver blades 16, and the link 233 is sequentially rotatably connected to the other end of the driving rocker 231 and the other ends of the plurality of driven rockers 232, so that the rotating shaft of the louver blade 16 and the output shaft of the stepping motor 22 rotate synchronously.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. An anti-icing energy-saving cooling tower, comprising:
the water-saving device comprises a tower body, a water tank and a water outlet, wherein the tower body is arranged above the water tank, the upper end of the tower body is provided with an air outlet, and the lower end side of the tower body is provided with an air inlet;
the heat exchange part comprises a fan, a packing layer, an annular cavity, a water inlet pipe and a plurality of air inlet pipes, the fan is installed at the air outlet, the packing layer and the annular cavity are vertically arranged in the tower body above the air inlet, the outer contour of the annular cavity is in an inverted circular truncated cone shape, the air inlet pipes sequentially penetrate through the side wall of the tower body, the outer side wall of the annular cavity and the inner side wall of the annular cavity respectively, the water inlet pipe comprises a first water inlet pipe and a second water inlet pipe, the first water inlet pipe extends to the inner space of the tower body above the packing layer, the second water inlet pipe is connected to the outer side wall of the annular cavity, and a plurality of water spray holes are uniformly distributed in the inner side wall of the annular cavity;
control part, control part includes acquisition controller, temperature sensor and fan frequency conversion controller of intaking, intake temperature sensor install in first inlet tube, intake temperature sensor's output connect in acquisition controller's input, fan frequency conversion controller's input connect in acquisition controller's output, fan frequency conversion controller's output connect in the fan.
2. The anti-icing energy-saving cooling tower according to claim 1,
the air inlet pipe inclines from the tower body side wall to the inner side wall of the annular cavity.
3. The anti-icing energy-saving cooling tower according to claim 1,
the heat exchange part further comprises a plurality of spiral spray heads, and each spiral spray head is arranged at one of the water spray holes.
4. The anti-icing energy-saving cooling tower according to claim 1,
the heat exchange part further comprises a spraying ring pipe, the spraying ring pipe is located right above the packing layer and connected to the first water inlet pipe, and a plurality of spraying heads are uniformly distributed on the spraying ring pipe.
5. The anti-icing energy-saving cooling tower according to claim 1,
the air inlet is characterized by further comprising a plurality of shutter louvers, and the shutter louvers are sequentially rotatably installed on the air inlet.
6. The anti-icing energy-saving cooling tower according to any one of claims 1 to 5,
the water level sensor is installed in the water pool, the output end of the water level sensor is connected to the input end of the acquisition controller, and the output end of the acquisition controller is connected to the water delivery pump.
7. The anti-icing energy-saving cooling tower according to any one of claims 1 to 5,
the control part further comprises an external temperature sensor, and the output end of the external temperature sensor is connected to the input end of the acquisition controller.
8. The anti-icing energy-saving cooling tower according to any one of claims 1 to 5,
the air outlet is connected to the air duct, and the fan is installed in the air duct.
9. The anti-icing energy-saving cooling tower according to claim 5,
still include step motor, step motor passes through link mechanism drive a plurality of shutter tripe rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023011184.1U CN212778735U (en) | 2020-12-15 | 2020-12-15 | Anti-icing energy-saving cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023011184.1U CN212778735U (en) | 2020-12-15 | 2020-12-15 | Anti-icing energy-saving cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212778735U true CN212778735U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023011184.1U Active CN212778735U (en) | 2020-12-15 | 2020-12-15 | Anti-icing energy-saving cooling tower |
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|---|---|
| CN (1) | CN212778735U (en) |
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2020
- 2020-12-15 CN CN202023011184.1U patent/CN212778735U/en active Active
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