CN212334839U - Automatic water treatment equipment and water treatment system for circulating water of power plant - Google Patents
Automatic water treatment equipment and water treatment system for circulating water of power plant Download PDFInfo
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- CN212334839U CN212334839U CN202020408071.6U CN202020408071U CN212334839U CN 212334839 U CN212334839 U CN 212334839U CN 202020408071 U CN202020408071 U CN 202020408071U CN 212334839 U CN212334839 U CN 212334839U
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Abstract
The utility model provides an automatic water treatment facilities and water treatment system of power plant's circulating water, power plant's circulating water system includes: circulating water pump, condenser and cooling tower. The condenser is connected with a water outlet of the circulating water pump through a water inlet pipeline, is connected with a water distribution pipe of the cooling tower through a water return pipeline, and a water inlet of the circulating water pump is communicated with a water tank at the bottom of the cooling tower. An automatic water treatment device for monitoring the water quality information of the circulating water conveyed in the water supply pipeline is arranged on the water supply pipeline. The automatic water treatment apparatus includes: the water quality monitoring system comprises a detection pipeline communicated with a water inlet pipeline region, at least one sensor for detecting the water quality information of circulating water in the detection pipeline, and a data processing device connected with all the sensors. Part of pipelines, all sensors and the data processing device of the detection pipeline are arranged in a box body. The utility model discloses a quality of water of automatic water treatment facilities real-time supervision circulating water realizes the automatic quality of water of handling the medicament regulation circulating water of input.
Description
Technical Field
The utility model relates to a water treatment facilities technical field especially relates to an automatic water treatment facilities and water treatment system of power plant's circulating water.
Background
The acceleration of the industrialization process makes people demand more and more electric power. The power generation methods mainly include: thermal power generation (combustible materials such as coal), solar power generation, large-capacity wind power generation technology, nuclear power generation, hydrogen power generation, water conservancy power generation and the like. At present, the dominant part in China is thermal power generation, fuel heats water to generate steam when burning, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, and the mechanical energy is converted into electric energy. The condensing equipment plays a role of a cold source in the thermodynamic cycle of the steam turbine device. The exhaust temperature and the exhaust pressure of the steam turbine are reduced, and the heat cycle efficiency can be improved. The condenser has the main functions of establishing and maintaining high vacuum at the steam exhaust port of the steam turbine and forming a complete cycle by using water condensed from the steam exhaust of the steam turbine as boiler feed water. And the condenser keeps higher vacuum degree through exchanging heat with circulating water.
At present, a cooling tower is often used for cooling a power plant, and the principle of the cooling tower is that cold water is introduced into the cooling tower and continuously circulates to cool a unit. The water in the cooling tower is heated to generate water vapor which is discharged outside through the top. Due to the evaporation of the circulating water in the cooling tower, the quality of the circulating cooling water also changes. At PH >9.2, circulating cooling water is prone to scaling on metal tubing and the walls of the condenser. The scale causes the coal consumption and the power consumption of the unit operation to be increased, the unit economy to be reduced, corrosive ions are concentrated and enriched under the scale, under-scale corrosion is formed, and even corrosion perforation is formed, so that the safe operation of the unit is influenced. Therefore, the quality of the circulating water of the power plant needs to be detected and adjusted. The existing monitoring of the quality of circulating water of a power plant is performed through manual sampling inspection, and a management department performs sampling inspection on the circulating water at intervals to detect whether the quality of the circulating water is qualified. This has the following disadvantages: firstly, the quality of the circulating water of the power plant cannot be monitored in real time, and the quality of the circulating water cannot be adjusted in time. Secondly, through the quality of water inefficiency of artifical detection power plant's circulating water, the cost of labor is high.
Therefore, it is desirable to provide an automatic water treatment device and a water treatment system for circulating water in a power plant.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the utility model provides an automatic water treatment equipment and water treatment system of power plant's circulating water.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides an automatic water treatment facilities of power plant's circulating water, wherein, power plant's circulating water system includes: the cooling tower is used for cooling circulating water carrying waste heat, the circulating water pump is used for cooling the condenser of steam; the water distribution pipe is provided with a spray head facing the cold water tank at the bottom of the cooling tower; arranging automatic water treatment equipment for monitoring the water quality information of circulating water conveyed in an incoming water pipeline on the incoming water pipeline;
the automatic water treatment apparatus includes: the detection pipeline is communicated with the water inlet pipeline, the at least one sensor is used for detecting the water quality information of the circulating water in the detection pipeline, and the data processing device is connected with all the sensors; and part of pipelines, all sensors and the data processing device of the detection pipeline are arranged in a box body.
Optionally, both ends of the detection pipeline are communicated with a water inlet pipeline, and the middle part of the detection pipeline is installed in a box body of the automatic water treatment equipment; the detection pipeline is also provided with a water meter for detecting the water quantity entering the detection pipeline.
Optionally, the automatic water treatment apparatus further comprises: at least two dosing adjusting devices; the dosing adjusting device is connected with the data processing device, and the water quality of circulating water in the water inlet pipeline is adjusted under the control of the data processing device, so that the circulating water in the water inlet pipeline meets the water quality condition.
Optionally, the at least two medicated adjustment devices comprise: the first dosing pump, the second dosing pump, the first dosing pipe and the second dosing pipe; one end of the first dosing pipe is connected with the outlet end of the first dosing pump, and the other end of the first dosing pipe is communicated with a water inlet pipeline; one end of the second dosing pipe is connected with the outlet end of the second dosing pump, and the other end of the second dosing pipe is communicated with the water inlet pipeline;
along the direction that rivers flow, the position setting that first dosing pipe and second dosing pipe and water inlet pipe communicate is in the rear that detects pipeline intercommunication position.
Optionally, the at least two dosing adjusting devices further comprise a first liquid medicine box and a second liquid medicine box, and the first liquid medicine box and the second liquid medicine box are respectively communicated with the inlet ends of the first dosing pump and the second dosing pump.
Optionally, the at least one sensor comprises: a residual chlorine sensor, a conductivity sensor, and/or a PH sensor.
Optionally, the data processing apparatus includes: the system comprises a data receiver, a microcomputer, a touch screen and a switch; the data receiver, the touch screen and the switch are all electrically connected with the microcomputer.
The utility model also provides a power plant's circulating water treatment system based on thing networking, include: the system comprises a cloud server, a mobile terminal, a fixed terminal and automatic water treatment equipment for circulating water of a power plant; the mobile terminal and the fixed terminal are in communication connection with the automatic water treatment equipment by means of the cloud server.
(III) advantageous effects
The utility model has the advantages that: the utility model discloses an automatic water treatment facilities of power plant's circulating water installs at the incoming water pipeline, transfers certain water sample, and the sensor detects the water sample of transferring, then gives data receiver with the data transmission after detecting, through the transmission behind the data receiver analysis to microcomputer, microcomputer adds medicine adjusting device according to received data control and puts in the treatment medicament to the incoming water pipeline, so, has realized the automation of medicament and has put in.
The automatic water treatment equipment can monitor residual chlorine, pH value, conductivity, turbidity and water temperature of circulating water in the water inlet pipeline at any time, does not need manual detection, reduces the cost of monitoring the circulating water in the water inlet pipeline, and improves the detection efficiency. If the pH value of the circulating water of the water inlet pipeline is greater than 9.2, the automatic water treatment equipment can be used for adding an acid solution into the water inlet pipeline to adjust the quality of the circulating water so as to enable the quality of the circulating water to meet the control standard. If the residual chlorine content of the circulating water is low, the automatic water treatment equipment puts a bactericide into the circulating water to inhibit the growth of microorganisms in the circulating water. If the conductivity of the circulating water exceeds the standard value, the concentration of corrosive ions in the circulating water is too high, and the scale and corrosion inhibitor is put into the circulating water by the automatic water treatment equipment to inhibit the corrosive ions from corroding pipelines and equipment.
Meanwhile, managers can acquire the water quality information of the circulating water on line in real time through the movable end or the fixed end, and monitor and adjust the water quality of the circulating water in the water inlet pipeline. When the conductivity of the circulating water is too large, namely the salt content of the cooling water is too high, a water replenishing pipeline is remotely opened on line to replenish water, and the circulating water is diluted.
Drawings
FIG. 1 is a connection diagram of a power plant circulating water system and an automatic water treatment device according to the present invention;
FIG. 2 is a rear view of the automatic water treatment apparatus of the present invention;
FIG. 3 is a plan view showing an inner structure of a detection chamber of the automatic water treatment apparatus;
FIG. 4 is a top view of the internal structure of the dosing chamber of the automatic water treatment apparatus;
FIG. 5 is a front view of the automatic water treatment apparatus;
fig. 6 is the utility model discloses a circulating water treatment system of power plant picture based on thing networking.
[ description of reference ]
1: supplementing water; 2: a cooling tower; 3: a water circulating pump; 4: a condenser; 5: an automatic water treatment apparatus; 6: a condensate pump; 7: a deaerator; 8: a boiler; 9: a steam turbine; 10: a generator; 11: a box body; 12: detecting a pipeline; 13: a residual chlorine sensor; 14: a conductivity sensor; 15: a pH sensor; 16: a water meter; 17 a: a first liquid medicine tank; 17 b: a second liquid medicine box; 18 a: a first dosing pump; 18 b: a second dosing pump; 19 a: a first dosing tube; 19 b: a second dosing tube; 20: a data receiver; 21: a microcomputer; 22: a switch; 23: a touch screen.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. As used herein, the terms "left", "right", and the like are used with reference to the orientation of FIG. 2.
Fig. 1 is the utility model discloses a power plant's circulating water system and automatic water treatment facilities 5's connection diagram, boiler 8 produce the vapor of high temperature, carry the high temperature end for steam turbine 9 with the vapor pressure, and steam pressure promotes steam turbine 9 rotatory, and heat energy conversion becomes mechanical energy, and then steam turbine 9 drives the generator 10 rotatory, turns into the electric energy with mechanical energy. The low temperature end of the turbine 9 is connected to the condenser 4. According to the law of physics, the larger the temperature difference between the high temperature end temperature and the low temperature end temperature of the steam turbine 9 is, the higher the power generation efficiency is. If the temperature difference is zero, the steam can not expand to do work. In order to increase the temperature difference, the temperature of the low-temperature end needs to be artificially reduced by circulating water to condense the steam into liquid water. The liquid water is transported to a deaerator 7 for deaerating by a condensate pump 6, and then transported to a boiler 8. The boiler 8 heats the liquid water to generate high-temperature steam, and the generated high-temperature steam is conveyed to the high-temperature end of the steam turbine 9 to continue acting.
The water supplement 1 enters a cold water pool at the bottom of the cooling tower 2 through a water supplement pipeline. The circulating water pump 3 pumps water from the cold water pool and conveys the water to the condenser 4 through a water inlet pipeline. The circulating water entering the condenser 4 exchanges heat with the steam that has performed work in the steam turbine, so that the steam is condensed into liquid water. The circulating water carrying the waste heat is delivered from the condenser 4 to a water distribution pipe at the middle part of the cooling tower 2 through a water return pipeline. The cooling tower 2 is in a hyperbolic shape, and the tower shape is high. Due to the air pressure difference between the upper part and the lower part, wind enters from the bottom of the tower and flows out from the top of the tower. The water distribution pipe is provided with a plurality of spray heads facing the cold water pool, circulating water carrying waste heat is sprayed into a water drop shape, the water drop falls, and cold air rises. The water drops contact with air and then undergo heat exchange to generate steam, and the steam volatilizes to take away the heat of the water drops. The cooled water droplets fall into a cold water pool at the bottom of the cooling tower 2 to be recovered. Since the water droplets are partially evaporated, the water is replenished 1 through the replenishing pipe, and the water is sent to the condenser 4 again by the circulating water pump 3 to continue the circulation.
Because a part of purified water is evaporated and lost in the cooling process, no matter the initial concentration of certain ions in the circulating water is, the concentration of the ions is increased along with the running time, and the water quality of the circulating water is also changed. As the carbonate concentration increases, bicarbonate decomposes to produce calcium carbonate scale, which, on the average, reduces the heat transfer efficiency of condenser 4 and, on the average, blocks the piping. The increase in the concentration of harmful ions also causes corrosion of the metal pipes of the condenser 4, so that the amount of make-up water needs to be controlled so that the concentration of some ions in the circulating water is stabilized at a constant value. At PH >9.2, the circulating water is prone to scaling on the metal pipes and the pipe walls of the condenser 4, so it is also necessary to control the PH of the circulating water. The growth of microorganisms in the circulating water is mainly caused by the propagation of bacteria and algae, and the generation of biological slime to cause corrosion and blockage of pipelines, so that the growth of microorganisms in the circulating water needs to be inhibited. The utility model provides an automatic water treatment facilities 5 of power plant's circulating water installs at the pipeline that comes, monitors the quality of water information of the circulating water of carrying in this pipeline that comes.
As shown in fig. 2, 3, 4 and 5, the automatic water treatment apparatus 5 includes a detection line 12, a data processing device and two dosing adjustment devices. Part of the detection pipeline 12, the data processing device and the two medicine adding adjusting devices are all installed in the box body 11. The data processing apparatus includes: a data receiver 20, a microcomputer 21, a touch screen 23 and a switch 22; the data receiver 20, the touch screen 23 and the switch 22 are electrically connected with the microcomputer 21.
The left side of the interior of the automatic water treatment equipment box body 11 in fig. 2 is a detection chamber, and the right side is a dosing chamber. The middle part of the detection pipeline 12 and the data receiver 20 are installed in the detection chamber, and both ends of the detection pipeline 12 are communicated with the water inlet pipeline. Part of the power plant circulating water in the water supply pipeline enters the automatic water treatment equipment 5 from one end of the detection pipeline 12 and then returns to the water supply pipeline from the other end of the detection pipeline 12.
A residual chlorine sensor 13, a conductivity sensor 14 and a PH sensor 15 are provided in the detection line 12. The residual chlorine sensor 13 is used for detecting the residual chlorine content of the circulating water of the power plant, and the residual chlorine is used for controlling the growth of microorganisms in the circulating water. The conductivity sensor 14 is used for detecting the conductivity of the circulating water of the power plant, the conductivity is approximately in direct proportion to the salt content, and Cl is contained in the circulating water with high salt content-And SO2 4The content of-tends to be higher and therefore the water is more corrosive; the PH sensor 15 is used for detecting the pH value of circulating water of the power plant. The detection line is also equipped with a water meter 16 for detecting the amount of water entering the automatic water treatment apparatus 5. The upper part of the detection chamber is provided with a microcomputer 21 and a switch 22, and the surface of the box body 11 of the detection chamber is provided with a touch screen 23. The data receiver 20, the touch screen 23 and the switch 22 are electrically connected with the microcomputer 21.
Two medicine adding adjusting devices are installed in the right side medicine feeding chamber, and the two medicine adding adjusting devices comprise a first liquid medicine box 17a, a first medicine feeding pump 18a, a second liquid medicine box 17b and a second medicine feeding pump 18 b. When a plurality of medicaments are required to be put into the cooling water, each medicament is stored in one medicament liquid box, and each medicament liquid box corresponds to one medicament dispensing pump and a medicament dispensing pipe. The first liquid medicine box 17a is communicated with the inlet end of the first medicine feeding pump 18a, and the outlet end of the first medicine feeding pump 18a is communicated with a water supply pipeline through a first medicine feeding pipe 19a to feed medicine into circulating water. The second liquid medicine box 17b is communicated with the inlet end of the second medicine feeding pump 18b, and the outlet end of the second medicine feeding pump 18b is communicated with a water supply pipeline through a second medicine feeding pipe to feed the medicine into the circulating water. The first liquid medicine tank 17a and the first dosing pump 18a are respectively filled with a common acid solution, a scale and corrosion inhibitor or a bactericide. Along the flowing direction of the water flow, the positions of the first dosing pipe 19a and the second dosing pipe 19b communicated with the water inlet pipeline are arranged behind the communication position of the detection pipeline 12.
The data receiver 20 is electrically connected with the residual chlorine sensor 13, the conductivity sensor 14, the PH sensor 15 and the water meter 16, and collects the detected water quality information (residual chlorine content, water quantity, conductivity, PH value) of the circulating water. The first and second dosing pumps 18a and 18b are electrically connected to the microcomputer 21. The data receiver 20 processes the detected water quality information, and transmits the processed data to the microcomputer 21, the microcomputer 21 compares the received data (residual chlorine content, water quantity, conductivity and pH value) with preset parameters to judge whether the water quality of the circulating water is qualified, if the pH value of the circulating water is greater than 9.2, the microcomputer 21 controls the dosing pump to dose acid solution into the circulating water, and the water quality of the circulating water is adjusted to meet the control standard. If the residual chlorine content of the circulating water is low, the microcomputer 21 controls the dosing pump to dose bactericide into the circulating water to inhibit the growth of microorganisms in the circulating water. If the conductivity of the circulating water exceeds the standard value, the concentration of corrosive ions in the circulating water is too high, and the microcomputer 21 controls the dosing pump to dose the scale and corrosion inhibitor into the circulating water to inhibit the corrosive ions from corroding the pipeline.
Fig. 5 is a front view of the automatic water treatment apparatus 5 for circulating water of a power plant, and a touch screen 23 is installed on the outer surface of the tank 11 to display the water quality information of the circulating water in real time under the control of the microcomputer 21. The manager knows the water quality information through the touch screen 23 and inputs instructions to the microcomputer 21, and the microcomputer 21 controls the operation and the dosing of each dosing pump according to the received instructions. And a water replenishing pipeline can be controlled to be opened, so that water replenishing 1 is added to a cold water pool at the bottom of the cooling tower 2, and the salt content of circulating water of the power plant is reduced.
Fig. 6 is the utility model discloses a circulating water treatment system of power plant picture based on thing networking, include: the system comprises a cloud server, a mobile terminal, a fixed terminal and automatic water treatment equipment for circulating water of a power plant; the mobile terminal and the fixed terminal are in communication connection with automatic water treatment equipment of circulating water of the power plant by means of the cloud server.
Referring to fig. 2 and 6, the microcomputer 21 transmits the water quality data to the switch 22, the switch 22 transmits the data to the cloud server, and the mobile terminal or the fixed terminal acquires the data through the cloud server. The manager knows the water quality information through the mobile terminal or the fixed terminal and sends an instruction, the mobile terminal or the fixed terminal sends the instruction to the cloud server, the switch 22 receives the instruction and transmits the instruction to the microcomputer 21, and then the operation dosing of the first dosing pump 18a or the second dosing pump 18b is controlled, so that the circulating water of the power plant meets the control standard. The managers can also open a water replenishing pipeline through remote control, water replenishing 1 is added to a cold water pool at the bottom of the cooling tower 2, and the salt content of circulating water of the power plant is reduced.
It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.
Claims (8)
1. An automatic water treatment equipment of power plant circulating water, wherein, power plant circulating water system includes: a cooling tower (2) for cooling the circulating water carrying waste heat, a circulating water pump (3), a condenser (4) for cooling the steam; the water cooling tank at the bottom of the cooling tower (2) is communicated with a water inlet of a circulating water pump (3), a water outlet of the circulating water pump (3) is communicated with a water inlet of a condenser (4) through a water inlet pipeline, a water outlet of the condenser (4) is communicated with a water distribution pipe of the cooling tower (2) through a water return pipeline, and a spray head facing the water cooling tank at the bottom of the cooling tower (2) is arranged on the water distribution pipe; the method is characterized in that: arranging automatic water treatment equipment (5) for monitoring the water quality information of circulating water conveyed in an incoming water pipeline on the incoming water pipeline;
the automatic water treatment apparatus (5) comprises: the detection pipeline (12) is communicated with the water inlet pipeline, the at least one sensor is used for detecting the water quality information of the circulating water in the detection pipeline (12), and the data processing device is connected with all the sensors; and part of pipelines, all sensors and a data processing device of the detection pipeline (12) are arranged in a box body (11).
2. The automatic water treatment apparatus of claim 1, wherein: both ends of the detection pipeline (12) are communicated with a water inlet pipeline, and the middle part of the detection pipeline (12) is arranged in a box body (11) of the automatic water treatment equipment (5); the detection pipeline (12) is also provided with a water meter (16) for detecting the water quantity entering the detection pipeline (12).
3. The automatic water treatment apparatus of claim 1, wherein: the automatic water treatment apparatus (5) further comprises: at least two dosing adjusting devices; the dosing adjusting device is connected with the data processing device, and the water quality of circulating water in the water inlet pipeline is adjusted under the control of the data processing device, so that the circulating water in the water inlet pipeline meets the water quality condition.
4. The automatic water treatment apparatus of claim 3, wherein: the at least two dosing adjustment devices comprise: a first dosing pump (18a), a second dosing pump (18b), a first dosing tube (19a) and a second dosing tube (19 b); one end of the first dosing pipe (19a) is connected with the outlet end of the first dosing pump (18a), and the other end of the first dosing pipe is communicated with a water inlet pipeline; one end of the second dosing pipe (19b) is connected with the outlet end of the second dosing pump (18b), and the other end of the second dosing pipe is communicated with a water inlet pipeline;
along the flowing direction of water flow, the position of the first dosing pipe (19a) and the second dosing pipe (19b) communicated with the water inlet pipeline is arranged behind the communication position of the detection pipeline (12).
5. The automatic water treatment apparatus of claim 3, wherein: at least two medicine adjusting device still include first liquid medicine case (17a) and second liquid medicine case (17b), first liquid medicine case (17a) and second liquid medicine case (17b) communicate with the entrance point of first pump (18a) of dosing and second pump (18b) of dosing respectively.
6. The automatic water treatment apparatus of claim 1, wherein: the at least one sensor comprises: a residual chlorine sensor (13), a conductivity sensor (14) and/or a pH sensor (15).
7. The automatic water treatment apparatus of claim 1, wherein: the data processing apparatus includes: the system comprises a data receiver (20), a microcomputer (21), a touch screen (23) and a switch (22); the data receiver (20), the touch screen (23) and the switch (22) are electrically connected with the microcomputer (21).
8. The utility model provides a power plant's circulating water treatment system based on thing networking which characterized in that: the method comprises the following steps: cloud server, mobile terminal, fixed terminal and the automatic water treatment equipment of power plant circulating water of any one of the above claims 1 to 7;
the mobile terminal and the fixed terminal are in communication connection with the automatic water treatment equipment by means of the cloud server.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113003621A (en) * | 2021-01-14 | 2021-06-22 | 北京朗新明环保科技有限公司 | Data acquisition system for intelligent water treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113003621A (en) * | 2021-01-14 | 2021-06-22 | 北京朗新明环保科技有限公司 | Data acquisition system for intelligent water treatment system |
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