CN215638906U - Cooling tower circulation system with excess pressure power generation function - Google Patents
Cooling tower circulation system with excess pressure power generation function Download PDFInfo
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- CN215638906U CN215638906U CN202122117461.5U CN202122117461U CN215638906U CN 215638906 U CN215638906 U CN 215638906U CN 202122117461 U CN202122117461 U CN 202122117461U CN 215638906 U CN215638906 U CN 215638906U
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Abstract
The utility model relates to a cooling tower, in particular to a cooling tower circulating system with a residual pressure power generation function, which comprises a collecting barrel, a heat exchanger and a circulating pump which are sequentially communicated, wherein the collecting barrel is arranged at the lower end of the cooling tower, the circulating pump is communicated to a water supply end of the cooling tower through a pipeline, a power generation device is arranged between the collecting barrel and the heat exchanger and comprises a power generator, the driving end of the power generator is connected to the collecting barrel, a motor barrel of the power generator is connected with the lower end of the cooling tower through a connecting seat, the driving end of the power generator is connected to the collecting barrel, high continuity of water flow can be ensured, the installation is convenient, the motor barrel is arranged at the lower end of the cooling tower, a water head can be effectively utilized, the transmission distance is short, the energy utilization rate is high, the integral structure is simple, the manufacturing cost is low, and the installation and the maintenance are convenient.
Description
Technical Field
The utility model relates to a cooling tower, in particular to a cooling tower circulating system with a residual pressure power generation function.
Background
The cooling tower is general mechanical equipment which mainly discharges waste heat in circulating cooling water to air through convection and evaporation heat exchange, is widely applied to industries such as petroleum, chemical industry, synthetic ammonia, power, metallurgy and the like, particularly the synthetic ammonia industry, needs a large amount of cooling water devices, and has higher residual pressure of cooling water due to the fact that certain cooling systems generally have certain margin according to the design value of the lift of a circulating water pump provided by a design institute, and can greatly change along with different seasons and loads, and the margin of the lift of the circulating water pump is generally 5-20 mH2In the normal production process of O, synthetic ammonia, the load of a water cooling tower is high, and the spraying condition in the cooling tower is that the pressure required by the outlet of a spray head is 1-2 mH2And O, normally closing a valve on a pipeline by 10-70% during operation, so that pressure reduction can be realized, but the mode causes waste of energy.
At present, the utilization technology of the residual pressure of the circulating cooling water in the synthetic ammonia industry can be roughly classified into two types: a direct connection mode of a water turbine fan and a dual-drive cooling tower water turbine mode.
The mode that hydraulic turbine fan directly links the hydraulic turbine and fan with the shaft coupling, and the mechanical energy of converting the cooling water residual energy pressure into the hydraulic turbine is in order to drive the fan work. When the surplus water head can not meet the energy required by the running of the fan motor, if the method is still adopted, the expected cooling effect can not be achieved, the motor needs to be connected to maintain the normal work of the cooling tower, and the water turbine becomes the extra load of the motor at the moment, so that more electricity is consumed. And the hydraulic turbine is installed in the tower, has increased the windage of cooling tower to a certain extent. Most of the existing research and application in China is that the mode has no good solution to the defects.
The dual-drive cooling tower water turbine mode tries to connect the water turbine and the fan through the clutch so as to solve the problem of effective utilization of residual energy of the cooling tower, but has the defects that two types of power (namely the power provided by the water turbine and the power provided by the motor) can be simply superposed without internal loss, and how to effectively connect the water turbine, the fan, the motor and the speed reducer, how to effectively start the water turbine and the fan and what type of water turbine is suitable for dual-drive conditions and the like are not overcome up to now.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a cooling tower circulating system with a residual pressure power generation function, which can effectively utilize the residual pressure of cooling water to generate power.
The utility model is realized by the following technical scheme: the utility model provides a cooling tower circulation system with excess pressure power generation function, is including collecting vessel, heat exchanger, the circulating pump that communicates in proper order, the collecting vessel sets up the cooling tower lower extreme, the circulating pump communicates to the water supply end of cooling tower through the pipeline, be provided with power generation facility between collecting vessel and the heat exchanger, power generation facility includes the generator, the drive end of generator is connected to the collecting vessel, the motor bucket of generator passes through the connecting seat and is connected with the cooling tower lower extreme.
Further, a connecting barrel is arranged at the lower end of the collecting barrel, the upper end of the connecting barrel is communicated with the collecting barrel, a mounting opening used for mounting a driving end of a generator is formed in the lower end of the connecting barrel, the driving end of the generator comprises an impeller cover, an impeller is arranged in the impeller cover, and a water outlet pipe is connected to a water outlet of the impeller cover.
Furthermore, the generator is an axial flow generator, a connecting pipe is arranged at the water outlet end of the impeller cover, a sealing plate is arranged at the lower end of the connecting pipe, a main shaft of the generator upwards penetrates through the sealing plate through a bearing, and the water outlet pipe is connected to the side wall of the connecting pipe.
Further, the connecting seat includes a plurality of connecting rods connected to the connecting barrel, the connecting rods being connected with the motor barrel.
Further, the main shaft upper end of generator is connected with wind pressure drive arrangement, wind pressure drive arrangement includes the drive shaft, the drive shaft lower extreme is connected with the main shaft of generator, the drive shaft upper end is provided with the blade.
Further, the driving shaft is connected with a main shaft of the generator through a universal coupling.
Furthermore, a support rod is arranged between the driving shaft and the inner wall of the cooling tower.
The utility model has the beneficial effects that: cooling tower circulation system with excess pressure electricity generation function, including collecting vessel, heat exchanger, the circulating pump that communicates in proper order, the collecting vessel sets up the cooling tower lower extreme, the circulating pump communicates to the water supply end of cooling tower through the pipeline, be provided with power generation facility between collecting vessel and the heat exchanger, power generation facility includes the generator, the drive end of generator is connected to the collecting vessel, the motor bucket of generator passes through the connecting seat and is connected with the cooling tower lower extreme, and the drive end of generator is connected to the collecting vessel, can guarantee that the rivers continuity is high, and simple to operate, and the motor bucket is installed at the cooling tower lower extreme, can effectually utilize the flood peak, and transmission distance is short, and energy utilization is high, and overall structure is simple, low in manufacturing cost, and the installation is maintained conveniently.
Drawings
FIG. 1 is a schematic view showing the connection of the respective parts in embodiment 1;
FIG. 2 is a schematic view of the connection between the power plant and the cooling tower;
FIG. 3 is a schematic cross-sectional view of a connection between a driving end of a generator and a connection barrel;
wherein: 1-cooling tower, 2-driving shaft, 3-blade, 4-supporting rod, 5-collecting barrel, 6-universal coupling, 7-motor barrel, 8-connecting rod, 9-impeller cover, 10-impeller, 11-connecting pipe, 12-sealing plate, 13-water outlet pipe and 14-connecting barrel.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-3, a cooling tower circulation system with excess pressure power generation function, including collecting vessel 5, heat exchanger, the circulating pump that communicate in proper order, 1 lower extreme of collecting vessel installation cooling tower, in this embodiment, the main part of cooling tower is cylindrical, and the collecting vessel is also cylindrical, and the collecting vessel and the cooling tower coaxial line can guarantee that the water source in the collecting vessel is stable, and then guarantees the drive end job stabilization of generator, still conveniently connects subsequent wind pressure drive arrangement.
The circulating pump communicates to the water supply end of cooling tower through the pipeline, installs fan, spray the water distributor in the upper end of cooling tower, and then guarantees that the cooling is even, high-efficient, and circulating water pump's design lift is higher than the demand lift that sprays, goes out water through the pressure-limiting valve control, and then satisfies the cooling demand of different temperature environment, and the heat exchanger will pass through the outside transmission of heat of the cooling water of heat exchange, and then reaches the purpose of cooling water.
Install power generation facility between collecting vessel and the heat exchanger, power generation facility includes the generator, in this embodiment, chooses axial-flow generator for use, and the generating efficiency is high, and axial-flow generator's drive end and 7 coaxial lines of motor bucket, and the convenience is connected with the collecting vessel, reduces vibrations, still conveniently is connected with wind pressure drive arrangement.
The lower end of a collecting barrel is coaxially communicated with a connecting barrel 14 through a flange, the connecting barrel is also of a cylindrical shape, the lower end of the connecting barrel is provided with a mounting port for mounting the driving end of the generator, the driving end of the generator comprises an impeller cover 9, the impeller cover is inserted in the mounting port in a sealing manner, an impeller 10 is mounted in the impeller cover, for more convenient connection, the water outlet end of the impeller cover is connected with a connecting pipe 11 in a flange manner, the lower end of the connecting pipe is welded with a sealing plate 12 in a sealing manner, a main shaft of the generator upwards passes through the sealing plate through a sealing bearing, the side wall of the connecting pipe is communicated with a water outlet pipe 13, the connecting seat comprises a plurality of connecting rods 8 connected to the connecting barrel, and the connecting rods are connected with the motor barrel. Then through flange mounting to the collecting vessel, simple to operate.
The main shaft upper end of generator is connected with wind pressure drive arrangement, wind pressure drive arrangement includes drive shaft 2, the drive shaft lower extreme is connected with the main shaft of generator, blade 3 is installed to the drive shaft upper end, the residual pressure of the air supply of fan passes through blade promotion drive shaft and rotates, be connected through universal joint 6 between the main shaft of drive shaft and generator, can reduce the influence of the axiality deviation between the main shaft of drive shaft and generator to the generator, reduce vibrations, improve job stabilization nature, install bracing piece 4 between drive shaft and the cooling tower inner wall, the bracing piece passes through bearing and drive shaft connection, improve the job stabilization nature of drive shaft.
To sum up, the cooling tower circulation system that has excess pressure power generation function that this embodiment provided can guarantee that the rivers continuity is high, and simple to operate, and the motor bucket is installed at the cooling tower lower extreme, can effectual utilization flood peak, and transmission distance is short, and energy utilization is rateed highly, and overall structure is simple, low in manufacturing cost, and the installation is maintained conveniently.
In order to better realize energy utilization, in the using process, the generator feeds back to a power grid and a power distribution system through a frequency converter, the frequency converter is a four-quadrant frequency converter, the power distribution system is a power allocation control system, more particularly an EMS system, namely a power management system, the power distribution system controls the work of a circulating pump, a pressure detector is arranged at an inlet and an outlet of an axial flow generator set, particularly a PCM303 type pressure transmitter of Nanjing Voltamiun technology Co., Ltd, a rotating speed detection element is arranged on the body of the axial flow generator, particularly a Hall sensor is selected and transmitted to a four-quadrant frequency converter and an operation room microcomputer, the four-quadrant frequency converter controls the rotating speed of the axial flow generator set through a detected pressure signal, so that the axial flow generator set maintains stable outlet pressure, cooling water has certain residual pressure and can stably flow into a cooling tower at the upper part and can be uniformly sprayed in the cooling tower, the axial flow generator set is provided with a bearing temperature detection element and three stator temperature detection elements, an operator can remotely monitor the change conditions of the temperatures of the bearing and the stator in real time, a three-phase frequency conversion bridge generates a magnetic field to drive a motor of the circulating water pump, a circuit protection module in the electric energy allocation control system detects the current by using a filter circuit and displays the current on a microcomputer of an operation room, and the control is realized through the adjustment of a controller, so that the circuit of the electric energy allocation control system and the motor of the circulating water pump are prevented from being burnt by the excessive current when the generated energy of the axial flow generator set is greater than the actual requirement of the motor of the circulating water pump.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a cooling tower circulation system with excess pressure power generation function, is including collecting vessel, heat exchanger, the circulating pump that communicates in proper order, the collecting vessel sets up the cooling tower lower extreme, the circulating pump communicates to the water supply end of cooling tower through the pipeline, a serial communication port, be provided with power generation facility between collecting vessel and the heat exchanger, power generation facility includes the generator, the drive end of generator is connected to the collecting vessel, the motor bucket of generator passes through the connecting seat and is connected with the cooling tower lower extreme.
2. The cooling tower circulation system with residual pressure power generation function according to claim 1, wherein a connecting barrel is arranged at the lower end of the collecting barrel, the upper end of the connecting barrel is communicated with the collecting barrel, an installation opening for installing the driving end of a generator is arranged at the lower end of the connecting barrel, the driving end of the generator comprises an impeller cover, an impeller is arranged in the impeller cover, and a water outlet pipe is connected to a water outlet of the impeller cover.
3. The cooling tower circulation system with residual pressure power generation function according to claim 2, wherein the generator is an axial flow generator, the water outlet end of the impeller cover is provided with a connecting pipe, the lower end of the connecting pipe is provided with a sealing plate, the main shaft of the generator passes through the sealing plate upwards through a bearing, and the water outlet pipe is connected to the side wall of the connecting pipe.
4. The cooling tower circulation system with residual pressure power generation function according to claim 2, wherein the connecting base comprises a plurality of connecting rods connected to a connecting barrel, and the connecting rods are connected with the motor barrel.
5. The cooling tower circulation system with residual pressure power generation function of claim 1, wherein a wind pressure driving device is connected to the upper end of the main shaft of the generator, the wind pressure driving device comprises a driving shaft, the lower end of the driving shaft is connected with the main shaft of the generator, and blades are arranged on the upper end of the driving shaft.
6. The cooling tower circulation system with residual pressure power generation function according to claim 5, wherein the driving shaft is connected with a main shaft of the generator through a universal joint.
7. The cooling tower circulation system with residual pressure power generation function according to claim 5, wherein a support rod is arranged between the drive shaft and the inner wall of the cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122117461.5U CN215638906U (en) | 2021-09-03 | 2021-09-03 | Cooling tower circulation system with excess pressure power generation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122117461.5U CN215638906U (en) | 2021-09-03 | 2021-09-03 | Cooling tower circulation system with excess pressure power generation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215638906U true CN215638906U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122117461.5U Active CN215638906U (en) | 2021-09-03 | 2021-09-03 | Cooling tower circulation system with excess pressure power generation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215638906U (en) |
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2021
- 2021-09-03 CN CN202122117461.5U patent/CN215638906U/en active Active
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