CN112727555B - Condensate pump arrangement method - Google Patents
Condensate pump arrangement method Download PDFInfo
- Publication number
- CN112727555B CN112727555B CN202011566555.4A CN202011566555A CN112727555B CN 112727555 B CN112727555 B CN 112727555B CN 202011566555 A CN202011566555 A CN 202011566555A CN 112727555 B CN112727555 B CN 112727555B
- Authority
- CN
- China
- Prior art keywords
- condensate
- water
- branch pipe
- condensate pump
- sampling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
- F01K9/023—Control thereof
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a condensate pump arrangement method, which comprises the following steps: a baffle plate is vertically arranged on the inner surface of a bottom plate of a hot well of the condenser; setting a first water collector and a second water collector; the water outlet end of the first water collector is connected with the water outlet end of the second water collector by a water condensation main pipe; two stop valves are arranged on the condensation main pipe; the first condensate branch pipe is connected with the second condensate branch pipe, and the standby condensate branch pipe is connected with the first condensate branch pipe; a first condensate pump is arranged on the first condensate branch pipe, a second condensate pump is arranged on the second condensate branch pipe, and a standby condensate pump is arranged on the standby condensate branch pipe; the first condensate branch pipe is provided with a first sampling testing device, and the second condensate branch pipe is provided with a second sampling testing device. The arrangement method can be used for respectively extracting the condensed water in the first condensed water cavity and the second condensed water cavity in the condenser hot well, and the problem that the condensed water at two sides cannot be extracted separately due to the fact that only one water collector is arranged in the hot well is solved.
Description
Technical Field
The invention belongs to the technical field of power generation equipment, and particularly relates to a condensate pump arrangement method which is suitable for wet cooling thermal power generation units, gas turbines matched with condensing steam turbines, nuclear power, waste heat power generation and other fields.
Background
Tens of thousands of heat exchange tubes are arranged inside a condenser of the domestic wet-cooling thermal generator set, circulating water is introduced into the tubes for cooling steam entering the condenser, the steam condenses into water on the outer surfaces of the heat exchange tubes, and the water flows into a hot well at the bottom of the condenser.
Because of abrasion and impact, the power plant faces the problem of leakage of the heat exchange tube of the condenser. Because there is huge difference between the condensation water inside the condenser and the water quality of the circulating water for cooling, once the heat exchange pipe leaks, unqualified circulating water can enter the negative pressure side of the condenser, and the water quality of the condensation water exceeds the standard, especially for a unit cooled by utilizing seawater, once the heat exchange pipe leaks, serious exceeding of the water quality of the condensation water can be caused in a very short time, serious threat is brought to the later equipment, the problems of scaling, pipe explosion, salt accumulation of the blades of a turbine and the like of the water-cooled wall of the boiler are easily caused, and the result of the supercritical unit is more serious.
In order to isolate the leakage pipe without stopping after the leakage of the heat exchange pipe occurs, the circulating water chamber of the condenser is generally divided into two sides of A, B, and when the leakage occurs, the problem that which side is necessary to face the power plant is timely found and judged.
At present, two domestic power plant condensate pumps are designed, one condensate pump runs for standby, the water taking position of the condensate pump is at the water collector of the bottom hot well of the condenser, condensed water in the condenser is converged and enters the water collector, and the corresponding condensed water at two sides of the circulating water chamber A, B of the condenser cannot be separated. For getting A, B both sides condensate that condenser circulation hydroecium corresponds, the power plant needs to install negative pressure sampling device that draws water alone, draws water the sample from A, B both sides respectively, because there is great negative pressure in the condenser inside, and negative pressure pumping system is complicated, and the sample that draws water is difficult, and the problem of drawing water sample or water sample inaccuracy often takes place, and the system is put incorrectly and still appears the problem of negative pressure system air leakage easily.
Therefore, a method capable of rapid sampling in real time is required to solve this problem. Meanwhile, the arrangement mode of the condensate pump with one operation and one standby is also faced with another problem, namely when one condensate pump is transformed by frequency conversion and energy conservation, the other condensate pump needs power frequency standby, if the frequency conversion condensate pump is tripped by faults, the pressure and the flow of the condensate system fluctuate greatly after the power frequency condensate pump is started in an interlocking way, and even the problems of damage of pipelines and flanges, water leakage and the like occur.
Disclosure of Invention
The invention aims to provide a condensate pump arrangement method to solve the problem that negative pressure water pumping and sampling are difficult due to an existing power plant condensate pump arrangement structure.
In order to achieve the above purpose, the arrangement method of the condensate pump provided by the invention can be used for respectively extracting the condensate water in the first condensate water cavity and the second condensate water cavity in the condenser hot well, so that the problem that only one water collector is arranged in the hot well and the condensate water at two sides cannot be extracted separately is solved.
Specifically, the technical scheme adopted by the invention is as follows:
a condensate pump arrangement method, comprising: a partition plate is vertically arranged on the inner surface of a bottom plate of a hot well of the condenser, and separates a condensation water cavity in the hot well into a first condensation water cavity and a second condensation water cavity which are arranged in parallel, and the first condensation water cavity is communicated with the second condensation water cavity; a first water collector is arranged on the outer surface of the bottom plate of the heat well corresponding to the first condensation water cavity, the water inlet end of the first water collector is communicated with the inner side of the first condensation water cavity, a second water collector is arranged on the outer surface of the bottom plate of the heat well corresponding to the second condensation water cavity, and the water inlet end of the second water collector is communicated with the inner side of the second condensation water cavity; the water outlet end of the first water collector is connected with the water outlet end of the second water collector by a water condensation main pipe; two stop valves are arranged on the condensate header pipe, and the two stop valves are arranged at intervals along the length direction of the condensate header pipe; a first condensate branch pipe is connected to a condensate main pipe between the first water collector and the adjacent stop valve, a second condensate branch pipe is connected to a condensate main pipe between the second water collector and the adjacent stop valve, and a standby condensate branch pipe is connected to a condensate main pipe between the two stop valves; a first condensate pump is arranged on the first condensate branch pipe, a second condensate pump is arranged on the second condensate branch pipe, and a standby condensate pump is arranged on the standby condensate branch pipe; the two stop valves, the first condensate pump, the second condensate pump and the standby condensate pump are respectively in communication connection with a controller arranged on the outer side of the condenser, the first condensate pump, the second condensate pump and the standby condensate pump are started in an interlocking mode through the controller, the first condensate pump or the second condensate pump is tripped when faults occur, and the standby condensate pump is started; the method comprises the steps of arranging a first sampling testing device on a first condensate branch pipe corresponding to a water outlet of a first condensate pump to form sampling testing of condensate in the first condensate branch pipe, arranging a second sampling testing device on a second condensate branch pipe corresponding to a water outlet of a second condensate pump to form sampling testing of condensate in the second condensate branch pipe, and connecting the first sampling testing device and the second sampling testing device with a controller in a communication mode to form transmission of sampling testing data.
Further, the output end of the first sampling assay device is sequentially connected with a cation exchanger and a conductivity meter; the output end of the second sampling testing device is sequentially connected with a cation exchanger and a conductivity meter; the two conductivity meters are respectively connected with the controller in a communication way, and whether leakage occurs in the heat exchange tube of the condenser is judged through the conductivity displayed by the conductivity meters.
Further, one side of the partition plate is connected with the inner surface of the adjacent side wall of the hot well, a gap is reserved between the other side of the partition plate and the inner surface of the adjacent side wall of the hot well, and the first condensation water cavity and the second condensation water cavity are communicated through the gap.
Further, gaps are reserved between two sides of the partition plate and the inner surfaces of the adjacent side walls of the hot well respectively, and the first condensation water cavity and the second condensation water cavity are communicated through the gaps.
Further, the upper end surface of the partition plate is higher than the water level of the condensation water cavity of the hot well; the height difference between the upper end surface of the partition plate and the water surface of the condensation water cavity of the hot well is 100-200 mm.
Further, a gap distance between one side of the partition plate and an inner surface of an adjacent side wall of the thermal well is 1m.
Further, the stop valve is an electric stop valve.
Further, the rated flow of the first condensate pump, the rated flow of the second condensate pump and the rated flow of the standby condensate pump are respectively 50% of the total flow of condensate in the condensate system.
Further, a control valve group which is in communication connection with the controller is arranged on the first condensate branch pipe, so that the control of the water outlet of the first condensate branch pipe is formed; the second condensate branch pipe is provided with a control valve group which is in communication connection with the controller, so that the control of the water outlet of the second condensate branch pipe is formed; and a control valve group in communication connection with the controller is arranged on the standby condensate branch pipe to form control on the water outlet of the standby condensate branch pipe.
Further, the first sampling assay device and the second sampling assay device respectively comprise a sampling tube, a cooler and a rotameter which are connected in sequence; the first sampling assay device and the second sampling assay device are respectively connected with the corresponding cation exchanger through a rotameter.
The invention has the beneficial effects that:
the method comprises the steps that a partition plate is arranged on the bottom surface of the inner side of a hot well of a condenser, a condensation cavity of the inner side of the hot well is divided into a first condensation cavity and a second condensation cavity, the first condensation cavity is correspondingly provided with a first water collector, the second condensation cavity is correspondingly provided with a second water collector, the first water collector and the second water collector are connected through a condensation main pipe, condensation water in the first water collector and condensation water in the second water collector are collected in one condensation main pipe, two stop valves are arranged on the condensation main pipe, the condensation main pipe is divided into three sections, one section is correspondingly provided with a first condensation branch pipe, one section is correspondingly provided with a second condensation branch pipe, the third section is provided with a standby condensation branch pipe, the first condensation branch pipe is provided with a first condensation water pump, the second condensation water pump is arranged on the second condensation branch pipe, and the standby condensation water pump is arranged on the standby condensation branch pipe;
the first condensate pump and the second condensate pump normally operate, the spare condensate pump inlet is connected with one side of the two stop valves, the spare condensate pump is used as the spare pump of the first condensate pump and the second condensate pump, and when the first condensate pump or the second condensate pump trips due to faults, the spare condensate pump is automatically started to ensure that the total condensate flow is stable.
Therefore, the condensation water in the first condensation water cavity and the second condensation water cavity of the heat well can be respectively extracted, and the problem that the condensation water at two sides cannot be extracted separately due to the fact that only one water collector is arranged in the heat well in the prior art is solved.
In the variable frequency energy-saving transformation, the first condensate pump and the second condensate pump are subjected to variable frequency transformation to form a variable frequency condensate pump, the standby condensate pump is used for power frequency standby, and after transformation, when any variable frequency condensate pump trips due to faults, the standby condensate pump is started in an interlocking mode, and as the tripped condensate pump only bears 50% of output, the system pressure and flow change are small, the impact on the system is small, and the problems of flange damage, pipeline leakage and the like are not easy to occur.
Drawings
Fig. 1 is a schematic structural diagram of a condensate pump arrangement method according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a partition board in a hot well in a condensate pump arrangement method according to embodiment 1 of the present invention;
wherein, 1, baffle, 11, first condensation water cavity, 12, second condensation water cavity, 13, clearance;
21. a first water collector, 22, a second water collector;
3. a condensate header pipe, a 31 and a stop valve;
41. a first condensate branch pipe, 42, a second condensate branch pipe, 43 and a standby condensate branch pipe;
51. the first condensate pump, 52, the second condensate pump, 53 and the standby condensate pump;
61. a first sampling assay device, 62, a second sampling assay device;
7. a conductivity meter;
100. condenser, 101, hot well.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to be included within the spirit and scope of the invention. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
Example 1
Referring to fig. 1 to 2, the method for arranging the condensate pump provided by the invention comprises the following steps: a partition board 1 is vertically arranged on the inner surface of a bottom plate of a heat well 101 of a condenser 100, the partition board 1 divides a condensation water cavity in the heat well 101 into a first condensation water cavity 11 and a second condensation water cavity 12 which are arranged in parallel, and the first condensation water cavity 11 is communicated with the second condensation water cavity 12; a first water collector 21 is arranged on the outer surface of the bottom plate of the heat well 101 corresponding to the first condensation water cavity 11, the water inlet end of the first water collector 21 is communicated with the inner side of the first condensation water cavity 11, a second water collector 22 is arranged on the outer surface of the bottom plate of the heat well 101 corresponding to the second condensation water cavity 12, and the water inlet end of the second water collector 22 is communicated with the inner side of the second condensation water cavity 12; the water outlet end of the first water collector 21 is connected with the water outlet end of the second water collector 22 by a water condensation main pipe 3; two stop valves 31 are arranged on the condensate header pipe 3, and the two stop valves 31 are arranged at intervals along the length direction of the condensate header pipe 3; a first condensate branch pipe 41 is connected to the condensate header pipe 3 between the first water collector 21 and the adjacent stop valve 31, a second condensate branch pipe 42 is connected to the condensate header pipe 3 between the second water collector 22 and the adjacent stop valve 31, and a standby condensate branch pipe 43 is connected to the condensate header pipe 3 between the two stop valves 31; a first condensate pump 51 is arranged on the first condensate branch pipe 41, a second condensate pump 52 is arranged on the second condensate branch pipe 42, and a standby condensate pump 53 is arranged on the standby condensate branch pipe 43; the two stop valves 31, the first condensate pump 51, the second condensate pump 52 and the standby condensate pump 53 are respectively connected with a controller (not shown) arranged on the outer side of the condenser 100 in a communication way, the first condensate pump 51, the second condensate pump 52 and the standby condensate pump 53 are started in an interlocking way through the controller, the first condensate pump 51 or the second condensate pump 52 is tripped when a fault occurs, and the standby condensate pump 53 is started; a first sampling and testing device 61 is arranged on the first condensate branch pipe 41 corresponding to the water outlet of the first condensate pump 51 to form sampling and testing on the condensate in the first condensate branch pipe 41, a second sampling and testing device 62 is arranged on the second condensate branch pipe 42 corresponding to the water outlet of the second condensate pump 52 to form sampling and testing on the condensate in the second condensate branch pipe 42, and the first sampling and testing device 61 and the second sampling and testing device 62 are respectively in communication connection with the controller to form transmission of sampling and testing data.
Further, the output end of the first sampling assay device 61 is sequentially connected with a cation exchanger (not shown) and a conductivity meter 7; the output end of the second sampling testing device 62 is sequentially connected with a cation exchanger (not shown) and a conductivity meter 7; the two conductivity meters 7 are respectively connected with the controller in a communication way, and whether leakage occurs in a heat exchange tube (not shown) of the condenser 100 is judged according to the conductivity displayed by the conductivity meters 7.
The condensate water taken out by the first sampling testing device 61 or the second sampling testing device 62 enters the conductivity meter 7 after passing through the cation exchanger, and whether the heat exchange tube of the condenser 100 leaks or not can be easily judged through the great difference of the quality of the condensate water and the circulating water according to the conductivity displayed by the conductivity meter 7, the first sampling testing device 61 is installed at the outlet of the first condensate pump 51, the second sampling device 62 is installed at the outlet of the second condensate pump 52, and the difference of the displayed conductivity values can easily judge which side of the heat exchange tube of the condenser 100 leaks, so that the circulating water on one leaking side is isolated in time, and the quality of the condensate water is ensured not to be polluted by the leaked circulating water continuously.
Further, one side of the partition plate 1 is connected with the inner surface of the adjacent side wall of the heat well 101, a gap 13 is reserved between the other side of the partition plate 1 and the inner surface of the adjacent side wall of the heat well 101, and the first condensation water cavity 11 and the second condensation water cavity 12 are communicated through the gap 13.
In order to meet the control requirement, gaps 13 are reserved between the two ends of the partition plate 1 and the inner surfaces of the side walls of the heat wells 101, so that under the condition that the condensation water in the first condensation water cavity 11 and the second condensation water cavity 12 is effectively isolated, after any one of the condensation water pumps trips and the standby condensation water pump 53 is started, the condensation water in the first condensation water cavity 11 and the second condensation water cavity 12 in the heat wells 101 of the condenser 100 can be pumped out, and meanwhile, the water levels of the condensation water in the first condensation water cavity 11 and the second condensation water cavity 12 are consistent, so that the control and the adjustment are facilitated.
Further, the upper end surface of the partition plate 1 is higher than the water level of the condensation water cavity of the thermal well 101; the height difference between the upper end surface of the partition plate 1 and the water surface of the condensation water cavity of the thermal well 101 is 100-200 mm.
The height of the condensed water level in the heat well 101 of the condenser 100 is generally controlled to be 500mm in normal operation, so that the height of the partition plate 1 is designed to be 600-700 mm, that is, the height difference is 100-200 mm, and thus the condensed water in the first condensed water cavity 11 and the second condensed water cavity 12 can be effectively isolated in height.
Further, the gap 13 between the partition plate 1 side and the adjacent side wall inner surface of the thermal well 101 is 1m.
A spacing of 1m ensures communication between the first condensation chamber 11 and the second condensation chamber 12.
Further, the stop valve 31 is an electric stop valve.
By adopting the electric stop valve, the controller can control the stop valve 31, and the degree of automation can be improved.
Further, the rated flow of the first condensate pump 51, the rated flow of the second condensate pump 52 and the rated flow of the standby condensate pump 53 are respectively 50% of the total condensate flow of the condensate system.
In the variable frequency energy-saving transformation, the first condensate pump 51 and the second condensate pump 52 are transformed in a variable frequency manner to form two variable frequency condensate pumps, the standby condensate pump 53 is used for standby in power frequency, after transformation, the standby condensate pump 53 is started in an interlocking manner after any variable frequency condensate pump is tripped due to fault, and the tripped variable frequency condensate pump only bears 50% of the total flow of the condensate system, so that the system pressure and flow change are small, the system impact is small, and the problems of flange damage, pipeline damage, water leakage and the like are not easy to occur.
Further, a control valve group 80 in communication connection with a controller is arranged on the first condensate branch pipe 41 to control the water outlet of the first condensate branch pipe 41; the second condensate branch pipe 42 is provided with a control valve group 80 in communication connection with a controller, so as to control the water outlet of the second condensate branch pipe 42; the standby condensate branch pipe 43 is provided with a control valve group 80 which is in communication connection with a controller, so as to control the water outlet of the standby condensate branch pipe 43.
The design of the control valve group 80 can promote remote control of the controller on the condensed water in the condensed water branch pipe, and promote the degree of automation.
The control valve group 80 comprises an electric stop valve positioned at the outer sides of two ends of the condensate pump and a stop valve positioned at the outer side of a water outlet of the condensate pump.
Further, the first sampling assay device 61 and the second sampling assay device 62 respectively include a sampling tube (not shown), a cooler (not shown) and a rotameter (not shown) connected in sequence; the first sampling assay device 61 and the second sampling assay device 62 are connected to the corresponding cation exchanger by means of a rotameter, respectively.
The sampling flow of the sampling assay device is as follows:
the condensate water at the outlet of the first condensate pump 51 or the second condensate pump 52 enters the cooler through the sampling pipe, the temperature of the condensate water is guaranteed to be less than or equal to 40 ℃, then the water flow of the sampled condensate water is adjusted through the rotor flowmeter, the cations in the condensate water are removed through the cation exchanger after adjustment, then the condensate water enters the conductivity meter 7, whether the condensate water is leaked is judged according to the real-time conductivity, the condenser 100 at one side of the first condensate water cavity 11 or the second condensate water cavity 12 sends leakage, the circulating water enters the heat exchange pipe at one side of the leakage, the quality of the condensate water exceeds the standard, particularly, seawater is adopted as circulating water, sodium chloride in the seawater enters the condensate water, the conductivity of the sampled condensate water is increased, and leakage is indicated.
Thus, the circulating water on one side of the leakage is timely isolated, and the quality of the condensed water is ensured not to be polluted by the leaked circulating water. Because the sampling and testing device water intake is installed at the outlet of the corresponding condensate pump, the negative pressure water pumping and sampling device is prevented from being independently arranged at the bottom of the condenser hot well, and the problems that sampling cannot be performed or sampling is not timely and the like caused by the failure of the negative pressure water pumping and sampling device are avoided.
In addition, the first water collector 21 is disposed at the middle of the outer surface of the bottom plate of the heat well corresponding to the first condensation water cavity 11, and the second water collector 22 is disposed at the middle of the outer surface of the bottom plate of the heat well corresponding to the second condensation water cavity 12. In this way, the condensation water of the first condensation water cavity 11 and the second condensation water cavity 12 can be guaranteed not to have series flow problem to the maximum extent in operation, and the independence of the condensation water at two sides is guaranteed.
Example 2
The procedure is as in example 1.
While the invention has been described in detail in terms of general description and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made or some functional modules can be deleted based on the invention. Accordingly, such modifications or improvements or omissions may be made without departing from the spirit of the inventions.
Claims (8)
1. A condensate pump arrangement method, characterized by comprising:
a partition board (1) is vertically arranged on the inner surface of a bottom plate of a heat well (101) of a condenser (100), the partition board (1) divides a condensation water cavity in the heat well (101) into a first condensation water cavity (11) and a second condensation water cavity (12) which are arranged in parallel, and the first condensation water cavity (11) is communicated with the second condensation water cavity (12);
a first water collector (21) is arranged on the outer surface of the bottom plate of the heat well (101) corresponding to the first condensation water cavity (11), the water inlet end of the first water collector (21) is communicated with the inner side of the first condensation water cavity (11), a second water collector (22) is arranged on the outer surface of the bottom plate of the heat well (101) corresponding to the second condensation water cavity (12), and the water inlet end of the second water collector (22) is communicated with the inner side of the second condensation water cavity (12);
the water outlet end of the first water collector (21) is connected with the water outlet end of the second water collector (22) by a water condensation main pipe (3); two stop valves (31) are arranged on the condensate header pipe (3), and the two stop valves (31) are arranged at intervals along the length direction of the condensate header pipe (3);
a first condensate branch pipe (41) is connected to a condensate main pipe (3) between a first water collector (21) and an adjacent stop valve (31), a second condensate branch pipe (42) is connected to the condensate main pipe (3) between a second water collector (22) and the adjacent stop valve (31), and a standby condensate branch pipe (43) is connected to the condensate main pipe (3) between the two stop valves (31);
a first condensate pump (51) is arranged on the first condensate branch pipe (41), a second condensate pump (52) is arranged on the second condensate branch pipe (42), and a standby condensate pump (53) is arranged on the standby condensate branch pipe (43);
the two stop valves (31), the first condensate pump (51), the second condensate pump (52) and the standby condensate pump (53) are respectively in communication connection with a controller arranged on the outer side of the condenser (100), the first condensate pump (51), the second condensate pump (52) and the standby condensate pump (53) are started in an interlocking way through the controller, the first condensate pump (51) or the second condensate pump (52) is tripped due to faults, and the standby condensate pump (53) is started;
a first sampling testing device (61) is arranged on a first condensate branch pipe (41) corresponding to the water outlet of the first condensate pump (51) to form sampling testing of condensate in the first condensate branch pipe (41), a second sampling testing device (62) is arranged on a second condensate branch pipe (42) corresponding to the water outlet of the second condensate pump (52) to form sampling testing of condensate in the second condensate branch pipe (42), and the first sampling testing device (61) and the second sampling testing device (62) are respectively in communication connection with the controller to form transmission of sampling testing data;
the output end of the first sampling testing device (61) is sequentially connected with a cation exchanger and a conductivity meter (7);
the output end of the second sampling testing device (62) is sequentially connected with a cation exchanger and a conductivity meter (7);
the two conductivity meters (7) are respectively connected with the controller in a communication way, and whether leakage occurs in the heat exchange tube of the condenser (100) is judged according to the conductivity displayed by the conductivity meters (7);
a control valve group (80) which is in communication connection with the controller is arranged on the first condensate branch pipe (41) to control the water outlet of the first condensate branch pipe (41);
a control valve group (80) which is in communication connection with the controller is arranged on the second condensate branch pipe (42) to control the water outlet of the second condensate branch pipe (42);
and a control valve group (80) in communication connection with the controller is arranged on the standby condensate branch pipe (43) to control the water outlet of the standby condensate branch pipe (43).
2. The condensate pump arrangement method according to claim 1, wherein one side of the partition plate (1) is connected with the inner surface of the adjacent side wall of the heat well (101), a gap (13) is reserved between the other side of the partition plate (1) and the inner surface of the adjacent side wall of the heat well (101), and the first condensate water cavity (11) and the second condensate water cavity (12) are communicated through the gap (13).
3. The condensate pump arrangement method according to claim 1, characterized in that a gap (13) is reserved between two sides of the partition plate (1) and the inner surface of the adjacent side wall of the hot well (101), and the first condensate cavity (11) and the second condensate cavity (12) are communicated through the gap (13).
4. A condensate pump arrangement according to any one of claims 1 to 3, characterized in that the upper end face of the partition (1) is higher than the water level of the condensate chamber of the hot well (101);
the height difference between the upper end surface of the partition plate (1) and the water surface of the condensation water cavity of the hot well (101) is 100-200 mm.
5. A condensate pump arrangement as claimed in claim 2 or 3, wherein the distance of the gap (13) between one side of the partition (1) and the inner surface of the adjacent side wall of the thermal well (101) is 1m.
6. The condensate pump arrangement method as claimed in claim 1, wherein the shut-off valve (31) is an electric shut-off valve.
7. The condensate pump arrangement method as claimed in claim 1, wherein the rated flow of the first condensate pump (51), the rated flow of the second condensate pump (52) and the rated flow of the backup condensate pump (53) are each 50% of the total condensate flow of the condensate system.
8. The condensate pump arrangement method as claimed in claim 1, wherein the first sampling assay device (61) and the second sampling assay device (62) comprise a sampling tube, a cooler and a rotameter, respectively, connected in sequence;
the first sampling assay device (61) and the second sampling assay device (62) are respectively connected with the corresponding cation exchanger through a rotameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566555.4A CN112727555B (en) | 2020-12-25 | 2020-12-25 | Condensate pump arrangement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566555.4A CN112727555B (en) | 2020-12-25 | 2020-12-25 | Condensate pump arrangement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727555A CN112727555A (en) | 2021-04-30 |
| CN112727555B true CN112727555B (en) | 2023-05-30 |
Family
ID=75616505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011566555.4A Active CN112727555B (en) | 2020-12-25 | 2020-12-25 | Condensate pump arrangement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727555B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565734B (en) * | 2021-06-30 | 2023-06-23 | 桐昆集团股份有限公司 | Hot well liquid seal groove with double outdoor circulation structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203870988U (en) * | 2014-06-03 | 2014-10-08 | 阳江核电有限公司 | Steam condenser |
| CN105065069A (en) * | 2015-08-14 | 2015-11-18 | 江苏永钢集团有限公司 | Condensed water extracting device of turbine generator set |
| JP6235687B1 (en) * | 2016-12-07 | 2017-11-22 | 日機装株式会社 | Leak detection device |
| CN110925732A (en) * | 2018-09-20 | 2020-03-27 | 中电行唐生物质能热电有限公司 | Agriculture and forestry biomass water-cooling vibration grate boiler combined heat and power generation unit small-capacity hot well and deaerator water level combined control strategy and device |
| CN210375820U (en) * | 2019-08-16 | 2020-04-21 | 上海金联热电有限公司 | Thermoelectric water circulation system |
-
2020
- 2020-12-25 CN CN202011566555.4A patent/CN112727555B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112727555A (en) | 2021-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109029000A (en) | A kind of condenser cleanliness on-line monitoring system and monitoring method | |
| CN101851945A (en) | Device for preparing liquid water by air | |
| CN214247439U (en) | Novel on-spot exhaust steam of condensing steam turbine unit is hydrophobic to be synthesized and is retrieved device | |
| CN112727555B (en) | Condensate pump arrangement method | |
| CN208831877U (en) | A kind of steam turbine of thermal power plant boiler circuit drain valve is interior to leak monitoring device | |
| CN106949753A (en) | A kind of control method of the changeable vacuum system of Air-cooled Unit full working scope | |
| CN112814748A (en) | Helium-carbon dioxide heat exchange system and method | |
| CN103790793A (en) | Ocean heat energy open circulation power generation system | |
| CN206890501U (en) | A kind of exceeded governing system of thermal power generation unit condensate dissolved oxygen content | |
| US20130048245A1 (en) | Heat Exchanger Having Improved Drain System | |
| CN213513854U (en) | Low-temperature economizer quick water discharge and online leakage detection isolation system | |
| CN103939935A (en) | Boiler blower inlet air heating system | |
| CN104100314B (en) | A kind of condensed steam type small steam turbine exhaust steam bootstrap system driving induced draught fan | |
| CN203797695U (en) | Air heating system for inlet of boiler air feeder | |
| CN107191232B (en) | Heating system of electric heating unit | |
| CN219797320U (en) | Drainage system of heating network heater | |
| CN107313814B (en) | A kind of can be the coal-fired mud power plant system and method for condenser Reduction of Students' Study Load | |
| Milić et al. | Analysis of operation of the condenser in a 120 MW thermal power plant | |
| CN215982498U (en) | Novel device for preventing leakage of high-pressure heater tube bundle in power plant | |
| CN219953462U (en) | Optimize combined cycle unit vacuum system | |
| CN218624343U (en) | Shaft seal heat regenerative system of million ultra-supercritical unit | |
| CN104390207A (en) | Heat recovering and utilizing system for low-temperature flue gas | |
| CN219318411U (en) | Radial heat pipe low-temperature economizer system | |
| CN112613164B (en) | Method for rapidly calculating heat consumption rate of steam turbine of thermal power plant | |
| CN220397579U (en) | Condenser waste heat utilization pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |