CN210108613U - Tidal current sampling method condenser leak hunting device - Google Patents
Tidal current sampling method condenser leak hunting device Download PDFInfo
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- CN210108613U CN210108613U CN201921017589.0U CN201921017589U CN210108613U CN 210108613 U CN210108613 U CN 210108613U CN 201921017589 U CN201921017589 U CN 201921017589U CN 210108613 U CN210108613 U CN 210108613U
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- 239000000498 cooling water Substances 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
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- 229910001415 sodium ion Inorganic materials 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
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- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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Abstract
A tidal current sampling method condenser leak detection device comprises a condenser A side, a condenser B side, a tidal current sampling main pipe and an analysis device; the condenser A side and the condenser B side are oppositely arranged, and an interface through which condensed water flows is arranged between the condenser A side and the condenser B side; a condensed water pump inlet pipeline is arranged at the water outlet of the condenser B side; the tide sampling main pipes are arranged in two groups, wherein one group is arranged at an interface between the side A of the condenser and the side B of the condenser for condensed water to flow through; the other group is arranged at the water outlet of the second gas condenser; a plurality of short sampling pipes are arranged on the tidal current sampling main pipe; the output end of the tidal current sampling main pipe is connected to an analysis device through a pipeline, and a sampling electromagnetic valve and a sampling pump are arranged on the pipeline; the analysis device is arranged outside the condenser A side; the utility model samples the condensed water area of the condenser, and realizes the accurate judgment of the area where the leakage point is located; when the condenser leaks, the position of a leakage point can be accurately and quickly judged.
Description
Technical Field
The utility model relates to a condenser leak hunting technical field especially relates to a trend sampling method condenser leak hunting device.
Background
The condenser is an important device for recovering steam of a thermal system of a thermal power plant, heat exchange pipes of the condenser mainly comprise brass, cupronickel, titanium pipes, super stainless steel and the like, and cooling water mainly comprises surface water and seawater from rivers and lakes. Because of abundant seawater resources, the seaside power plant generally adopts seawater as a cooling medium, and a circulating water system adopts a one-time through-flow cooling mode. Offshore seawater used as circulating cooling water contains a large amount of inorganic salts, organic matters and microorganisms, wherein the inorganic salts mainly comprise ions such as sodium, potassium, calcium, magnesium, chlorine, bromine, fluorine, sulfate radicals and carbonate radicals, and gases such as oxygen and nitrogen; the organic matters are mainly humic acid and amino acid; the microorganisms are mainly various algae, biological larvae, and the like. According to statistics, the average salt content of the seawater is 35 per thousand, the conductivity is about 40000us/cm, which is one thousand times of the common surface fresh water and ten thousand times of the power plant condensed water. Once the leakage point of the condenser pipe appears, a large amount of seawater leaks to the steam side, so that the salt content of the condensed water rises rapidly, and the water quality is deteriorated. If the leakage point cannot be found in time and the leakage is blocked, the salt in the condensed water can penetrate through the condensed water fine treatment exchanger, so that the quality of feed water, boiler water and steam is deteriorated, the corrosion and scaling of the heating surface of the boiler are caused (the corrosion and scaling processes are mutually promoted), and the pipe explosion is caused. Meanwhile, the salt is accumulated on the turbine blades, and the heat efficiency of the unit is reduced; in addition, the salt accumulation of the turbine blade can also reduce the flow cross section of the steam working flow, so that the output of the turbine is reduced and the turbine is under a non-full load; and the pressure drop of the steam in the turbine is increased, so that the abnormal vibration of the turbine is caused. Meanwhile, organic matters and microorganisms in seawater enter the water vapor circulation system and are decomposed at high temperature to generate acid, so that the PH of the working medium is reduced, and the corrosion rate of the heated surface is further accelerated; the water can be adhered to the surface of a fine-treated filter, so that the flux of condensed water is reduced; and causes organic pollution of the resin, weakens the desalting capability of the resin, reduces the operation period of the mixed bed, and aggravates the threat of the salt content of the condensed water to the system.
The existing condenser leak detection device is simple and unreasonable in sampling arrangement point and poor in sampling representativeness, and cannot timely judge which side the condenser leaks, so that the isolation time is delayed.
Most of the existing condenser leak detection devices are provided with sampling hoppers distributed below the ports of condenser tube plates, and the leakage detection of the condenser tubes in the middle tube section cannot be early warned; the existing condenser leak detection device has no definite directivity of the sampled water quality because the sampling hopper collects the condensed water at excessive parts, so that the leakage side of the condenser cannot be quickly distinguished; excessive corrosion products are deposited at the bottom of a sampling bucket of an existing condenser, sampling obstacles are caused, and a condenser leak detection device cannot be normally put into operation.
In order to solve the problems, the application provides a tidal current sampling method condenser leak detection device.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
The condenser aims to solve the problems that in the prior art, when a condenser leaks, a large amount of seawater leaks to the steam side, so that the salt content of condensed water rapidly rises, and the water quality is deteriorated. If the leakage point cannot be found in time and the leakage is blocked, the salt in the condensed water can penetrate through the condensed water fine treatment exchanger, and the quality of the feed water, the boiler water and the steam is further deteriorated. The utility model provides a tidal current sampling method condenser leak hunting device, the utility model samples the condenser condensed water area, has realized the accurate judgement of the area that the leak source is located; the condenser with the independent cooling on the opposite sides is realized, the water quality change is accurately analyzed through tidal current sampling, and the leakage of each area of a condenser tube bundle and a tube plate can be effectively sampled and analyzed; when the condenser leaks, the position of a leakage point can be accurately and quickly judged, the condenser is guided to perform isolation and leakage stoppage work, and the influence on the safe operation of a unit caused by the deterioration of the quality of steam and water is effectively avoided.
(II) technical scheme
In order to solve the problems, the utility model provides a tidal current sampling method condenser leak detection device, which comprises a condenser A side, a condenser B side, a tidal current sampling main pipe and an analysis device; the condenser A side and the condenser B side are oppositely arranged, and an interface through which condensed water flows is arranged between the condenser A side and the condenser B side; a cooling water supply and return pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the condenser A side; a cooling water pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the side B of the condenser; a condensed water pump inlet pipeline is arranged at the water outlet of the condenser B side; the tide sampling main pipes are arranged in two groups, wherein one group is arranged at an interface between the side A of the condenser and the side B of the condenser for condensed water to flow through; the other group is arranged at the water outlet of the second gas condenser; a plurality of short sampling pipes are arranged on the tidal current sampling main pipe; the sampling short pipe is in conduction connection with the tidal current sampling main pipe; the output end of the tidal current sampling main pipe is connected to an analysis device through a pipeline, and a sampling electromagnetic valve and a sampling pump are arranged on the pipeline; the analysis device is arranged outside the condenser A side and used for analyzing the data of hydrogen conductance and sodium ions in the sample.
Preferably, the analysis device is provided with an analog-to-digital conversion module for converting the analog quantity of the collected hydrogen conductance and sodium ion data into a digital quantity.
Preferably, the analysis device is provided with a communication module, and the communication module is in communication connection with the on-duty control room.
Preferably, the communication module is in communication connection with the on-duty control room by adopting a GSM, LTE, wireless WLAN or RS485 serial server.
Preferably, the analysis device is provided with a backup battery pack for supplying power to the analysis device.
Preferably, the backup battery is a gel battery.
The above technical scheme of the utility model has following profitable technological effect:
1. sampling the condensed water region of the condenser, thereby realizing accurate judgment of the region where the leakage point is located;
2. the condenser with the independent cooling on the opposite sides is realized, the water quality change is accurately analyzed through tidal current sampling, and the leakage of the condenser can be effectively sampled and analyzed;
3. when the condenser leaks, the position of a leakage point can be accurately and quickly judged, the condenser is guided to perform isolation and leakage stoppage work, and the influence on the safe operation of a unit caused by the deterioration of the quality of steam and water is effectively avoided.
Drawings
Fig. 1 is the utility model provides a trend sampling method condenser leak hunting device's schematic structure.
Fig. 2 is the utility model provides a structure schematic diagram of trend sample female pipe and sample nozzle stub in trend sample method condenser leak hunting device.
Reference numerals:
1. a tidal current sampling main pipe; 2. a short sampling pipe; 3. a sampling solenoid valve; 4. a sampling pump; 5. an analysis device; 6. a condenser A side; 7. a second condenser; 8. and a condensed water pump inlet pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the utility model provides a tide sampling method condenser leak detection device, which comprises a condenser a side 6, a condenser B side 7, a tide sampling main pipe 1 and an analysis device 5;
the condenser A side 6 and the condenser B side 7 are oppositely arranged, and an interface through which condensed water flows is arranged between the condenser A side 6 and the condenser B side 7; a cooling water supply and return pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the condenser A side 6; a cooling water pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the side B7 of the condenser; a condensed water pump inlet pipeline 8 is arranged at a water outlet of the side 7 of the condenser B;
the tide sampling main pipe 1 is provided with two groups, wherein one group is arranged at an interface between the side 6 of the condenser A and the side 7 of the condenser B for condensed water to flow through; the other group is arranged at the water outlet of the second gas condenser; a plurality of short sampling pipes 2 are arranged on the tidal current sampling main pipe 1; the sampling short pipe 2 is in conduction connection with the tidal current sampling main pipe 1; the output end of the tidal current sampling main pipe 1 is connected to an analysis device 5 through a pipeline, and a sampling electromagnetic valve 3 and a sampling pump 4 are arranged on the pipeline; an analysis device 5 is arranged outside the condenser a side 6 for analyzing the data of hydrogen conductance and sodium ions in the sample.
In the utility model, the flow direction of the condensed water is as the arrow direction shown in figure 1; when water in a condenser A side 6 enters a condenser B side 7, a part of condensed water enters a sampling short pipe 2 and a tide sampling main pipe 1, a sample is sent into an analysis device 5 through a sampling electromagnetic valve 3 and a sampling pump 4, the analysis device 5 detects hydrogen conductivity and sodium ion data in the sample, the condensed water in the condenser A side 6 or the condenser B side 7 is switched to enter the analysis device 5 through the opening and closing of the sampling electromagnetic valve 3 and the sampling pump 4, and at least two detection units are arranged in the analysis device 5 and used for respectively detecting the condensed water in the condenser A side 6 or the condenser B side 7; converting the analog quantity into digital quantity by the analog-to-digital conversion module according to the detection result; then the detection result is sent to an on-duty control room through a communication module, if the detection result is higher than a preset threshold value, the leakage of the side A6 of the condenser is judged, and the on-duty control room immediately stops the machine to isolate the side A6 of the condenser and performs leaking stoppage work;
when condensed water flows to a water outlet through a side 7 of a condenser B, a part of condensed water enters a sampling short pipe 2 and a tide sampling main pipe 1, a sample is sent into an analysis device 5 through a sampling electromagnetic valve 3 and a sampling pump 4, the analysis device detects hydrogen conductivity and sodium ion data in the sample, and a detection result converts analog quantity into digital quantity through an analog-to-digital conversion module; and then the detection result is sent to an on-duty control room through a communication module, if the detection result is higher than a preset threshold value and the detection result of the side A6 of the condenser is lower than the preset threshold value, the leakage of the side B7 of the condenser is judged, and the on-duty control room immediately shuts down the side B7 of the condenser for isolation and performs leakage stopping work.
In an alternative embodiment, the analysis device 5 is provided with an analog-to-digital conversion module for converting analog quantity of the collected data of hydrogen conductance and sodium ions into digital quantity.
In an alternative embodiment, the analysis device 5 is provided with a communication module, and the communication module is in communication connection with the duty control room.
In an optional embodiment, the communication module is in communication connection with the on-duty control room by adopting a GSM, LTE, wireless WLAN or RS485 serial server.
In an alternative embodiment, a battery backup is provided on the analysis means 5 for powering the analysis means 5.
In an optional embodiment, the spare battery pack is a gel battery, and the gel battery is damaged by collision and the like, so that explosion is avoided, and the use is safer.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A condenser leak detection device adopting a tidal current sampling method is characterized by comprising a condenser A side (6), a condenser B side (7), a tidal current sampling main pipe (1) and an analysis device (5); the condenser A side (6) and the condenser B side (7) are oppositely arranged, and an interface through which condensed water flows is arranged between the condenser A side (6) and the condenser B side (7); a cooling water supply and return pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the side A (6) of the condenser; a cooling water pipe, a corresponding pipe bundle and a corresponding pipe plate are independently arranged in the side B (7) of the condenser; a condensed water pump inlet pipeline (8) is arranged at a water outlet of the side B (7) of the condenser; the tide sampling main pipes (1) are arranged into two groups, wherein one group is arranged at an interface between the side (6) of the condenser A and the side (7) of the condenser B for condensed water to flow through; the other group is arranged at the water outlet of the second gas condenser; a plurality of short sampling pipes (2) are arranged on the tidal current sampling main pipe (1); the sampling short pipe (2) is in conduction connection with the tidal current sampling main pipe (1); the output end of the tidal current sampling main pipe (1) is connected to an analysis device (5) through a pipeline, and a sampling electromagnetic valve (3) and a sampling pump (4) are arranged on the pipeline; an analysis device (5) is arranged outside the condenser A side (6) and is used for analyzing the data of hydrogen conductance and sodium ions in the sample.
2. The tidal current sampling method condenser leak detection device according to claim 1, wherein an analog-to-digital conversion module is arranged on the analysis device (5) and is used for converting analog quantity of collected data of hydrogen conductance and sodium ions into digital quantity.
3. The tidal current sampling method condenser leak detection device according to claim 1, wherein the analysis device (5) is provided with a communication module, and the communication module is in communication connection with an on-duty control room.
4. The tidal current sampling method condenser leak detection device according to claim 3, wherein the communication module is in communication connection with an on-duty control room by adopting a GSM, LTE, wireless WLAN or RS485 serial server.
5. The tidal current sampling method condenser leak detection device according to claim 1, wherein a backup battery pack for supplying power to the analysis device (5) is arranged on the analysis device (5).
6. The tidal current sampling method condenser leak detection device according to claim 5, wherein the backup battery pack is a gel battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017589.0U CN210108613U (en) | 2019-07-02 | 2019-07-02 | Tidal current sampling method condenser leak hunting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017589.0U CN210108613U (en) | 2019-07-02 | 2019-07-02 | Tidal current sampling method condenser leak hunting device |
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| CN210108613U true CN210108613U (en) | 2020-02-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268468A (en) * | 2020-11-13 | 2021-01-26 | 华润电力(唐山曹妃甸)有限公司 | Leakage detection method for seawater direct-cooling condenser and condenser |
| CN112683463A (en) * | 2020-12-02 | 2021-04-20 | 安徽扬天金塑新能源装备股份公司 | Online leak detection device for tube type heat exchanger |
| CN115791230A (en) * | 2022-11-11 | 2023-03-14 | 华能(广东)能源开发有限公司汕头电厂 | A self-flowing condenser detection device |
-
2019
- 2019-07-02 CN CN201921017589.0U patent/CN210108613U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268468A (en) * | 2020-11-13 | 2021-01-26 | 华润电力(唐山曹妃甸)有限公司 | Leakage detection method for seawater direct-cooling condenser and condenser |
| CN112683463A (en) * | 2020-12-02 | 2021-04-20 | 安徽扬天金塑新能源装备股份公司 | Online leak detection device for tube type heat exchanger |
| CN115791230A (en) * | 2022-11-11 | 2023-03-14 | 华能(广东)能源开发有限公司汕头电厂 | A self-flowing condenser detection device |
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