CN207394223U - The online device for plugging of Cooling Tubes of Condenser - Google Patents
The online device for plugging of Cooling Tubes of Condenser Download PDFInfo
- Publication number
- CN207394223U CN207394223U CN201721215511.0U CN201721215511U CN207394223U CN 207394223 U CN207394223 U CN 207394223U CN 201721215511 U CN201721215511 U CN 201721215511U CN 207394223 U CN207394223 U CN 207394223U
- Authority
- CN
- China
- Prior art keywords
- condenser
- water
- plugging
- cooling tube
- sealing agent
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000008676 import Effects 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 19
- 229910001415 sodium ion Inorganic materials 0.000 claims description 11
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 230000004087 circulation Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model is related to pipe plugging technical fields, a kind of online device for plugging of Cooling Tubes of Condenser are provided, including condenser shell；The condenser shell is internally provided with cooling tube；Steam inlet pipe and condensating water outlet tube are provided on the condenser shell；The cooling tube has circulating water intake and circulating water outlet；Water circulating pump is connected at the circulating water intake；The import of the water circulating pump is connected with circulating water pipe；Device for plugging is provided on the circulating water pipe.The online device for plugging of Cooling Tubes of Condenser of the utility model, simple in structure, easy to operate, leak stopping is efficient；When detecting cooling tube leakage, open leaking stoppage valve, the sealing agent being located in sealing agent bucket is made to enter the inlet side of water circulating pump, sealing agent is transported in the cooling tube inside condenser by water circulating pump, under the action of cooling tube inside and outside differential pressure, sealing agent carries out online leak stopping to leakage point, reduces harm of the Cooling Tubes of Condenser leakage to electricity generation system.
Description
Technical field
The utility model is related to pipe plugging technical field, more particularly to a kind of online device for plugging of Cooling Tubes of Condenser.
Background technology
Condenser is the important ancillary equipment of power plant, its main function is that the steam discharge of steam turbine is condensed into water, so as to
High vacuum is formed in condenser.Vacuum is higher, and the exhaust steam pressure of steam turbine is lower, the cycling of power plant Steam Power Circulation
Efficiency is higher.Condenser in use, due to the cooling tube of tube side washed away by vapor stream, cooling tube and partition plate friction and
The problems such as material, is present with cooling tube leakage, and leak is smaller hole or gap, and the recirculated cooling water in cooling tube can be from
Leak enters in shell side, not only causes the vacuum degree of condenser shell side and reduces, but also pollutes the medium in shell side, meeting when serious
Cause boiler fouling booster, steam turbine incrustation etc., influence the safe operation of power plant system.When finding cooling tube leakage, at present
Domestic main way is to carry out leakage detection using stoppage in transit unit, then carries out leak stopping processing to the cooling tube of leakage, but this
The method repair time is long, and efficiency is low, and its power generation loss is larger after stoppage in transit unit.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of online device for plugging of Cooling Tubes of Condenser, work as cooling
When pipe leaks, the unit that need not stop transport can carry out online leak stopping to cooling tube.
Technical solution is used by the utility model solves its technical problem：The online device for plugging of Cooling Tubes of Condenser,
Including condenser shell；The condenser shell is internally provided with cooling tube；Steam inlet is provided on the condenser shell
Pipe and condensating water outlet tube；There is the cooling tube circulating water intake being arranged on outside the condenser shell and recirculated water to go out
Mouthful；Water circulating pump is connected at the circulating water intake；The import of the water circulating pump is connected with circulating water pipe；The recirculated water
Device for plugging is provided on pipe；The device for plugging includes leaking stoppage valve and sealing agent bucket；The outlet of the sealing agent bucket with it is described
The import connection of leaking stoppage valve；The outlet of the leaking stoppage valve is connected with the circulating water pipe.
Further, it is provided with leakage detection apparatus on the condensating water outlet tube.
Further, the leakage detection apparatus is water hardness in-line analyzer；The detector of the water hardness in-line analyzer with
Connection inside the condensating water outlet tube.
Further, the leakage detection apparatus is sodium ion on-line detector；The injection port of the sodium ion on-line detector with
The condensating water outlet tube connection.
The beneficial effects of the utility model are：The online device for plugging of Cooling Tubes of Condenser of the utility model, it is simple in structure,
Easy to operate, leak stopping is efficient；When detecting cooling tube leakage, leaking stoppage valve is opened, makes the sealing agent being located in sealing agent bucket
The inlet side of water circulating pump is entered, sealing agent is transported in the cooling tube inside condenser by water circulating pump, is being cooled down
Under the action of pipe inside and outside differential pressure, sealing agent carries out online leak stopping to leakage point, reduces Cooling Tubes of Condenser leakage to electricity generation system
Harm.
Description of the drawings
Fig. 1 is the structure diagram of the online device for plugging of the utility model Cooling Tubes of Condenser；
Reference numeral is in figure：1- condenser shells, 2- cooling tubes, 3- steam inlet pipes, 4- condensating water outlet tubes, 5- are followed
Ring water inlet, 6- circulating water outlets, 7- water circulating pumps, 8- circulating water pipes, 9- device for plugging, 10- leakage detection apparatus, 11- steam turbines,
12- sealing agents, 13- steam generator systems, 14- cooling tower systems, 15- circulations, 901- leaking stoppage valves, 902- sealing agent buckets.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples：
As shown in Figure 1,2 online device for plugging of Cooling Tubes of Condenser described in the utility model, including condenser shell 1；
The condenser shell 1 is internally provided with cooling tube 2；Steam inlet pipe 3 is provided on the condenser shell 1 and condensed water goes out
Mouth pipe 4；The cooling tube 2 has the circulating water intake 5 and circulating water outlet 6 being arranged on outside the condenser shell 1；It is described
Water circulating pump 7 is connected at circulating water intake 5；The import of the water circulating pump 7 is connected with circulating water pipe 8；The circulating water pipe 8
On be provided with device for plugging 9；The device for plugging 9 includes leaking stoppage valve 901 and sealing agent bucket 902；The sealing agent bucket 902 goes out
Mouth is connected with the import of the leaking stoppage valve 901；The outlet of the leaking stoppage valve 901 is connected with the circulating water pipe 8.
Condenser is a kind of heat transmission equipment, and condenser shell 1 is shell side, and medium is vapor in shell side, condenser shell 1
On steam inlet pipe 3 be connected with the outlet of steam turbine 11, the condensating water outlet tube 4 on condenser shell 1 and steam generator system 13
Connection；After steam in steam turbine 11 is entered by steam inlet pipe 3 in condenser shell 1, it is condensed by cooling tube 2 cold
Condensate, condensed water enter steam generator system 13 by condensating water outlet tube 4 and are recycled.
Cooling tube 2 is the tube side of condenser, is connected with water circulating pump 7 and Xun Huan at the circulating water intake 5 of cooling tube 2 in turn
Water pipe 8；The circulating water pipe 8 is connected with circulation 15；The circulating water outlet 6 of cooling tube 2 is connected with cooling tower systems 14.
The circulation 15 carries recirculated water for cooling for entire tube side, and recirculated water is entered in circulating water pipe 8, passes through Xun Huan
Recirculated water is transported in cooling tube 2 by water pump 7, and the steam in condenser shell side is cooled down, and after heat exchange, heating follows
Ring water enters cooling tower systems 14 by circulating water outlet 6 and cools down, and the recirculated water after cooling enters circulation
15 are recycled.
Equipped with sealing agent 12 in the sealing agent bucket 902, the sealing agent 12 is a kind of particulate matter not soluble in water, can be with
It is the materials such as plastics, metal or the mixing formed by a certain percentage with material granules such as walnut shell, fiber-like, micas
Object；Preferably, the sealing agent 12 is sawdust, and sawdust convenient material drawing, cost is relatively low.The sealing agent bucket 902 is set
It puts in the top of the circulating water pipe 8, the sealing agent valve 901 is connected to the bottom of sealing agent bucket 902, opens sealing agent valve
After 901, sealing agent 12 is entered under gravity in circulating water pipe 8.It further, can be in the sealing agent bucket 902
The device for squeezing sealing agent 12 is provided with, in use, by squeezing sealing agent 12, sealing agent 12 is made to be rapidly introduced into circulating water pipe
In 8.
When detecting that cooling tube 2 leaks, open sealing agent valve 901, be stored in sealing agent 12 in sealing agent bucket 902 into
Enter into circulating water pipe 8, be transported to by water circulating pump 7 in cooling tube 2, since the medium in condenser shell 1 is steam, steamed
Vapour can cause the pressure in condenser shell 1 to reduce during condensation, therefore the pressure inside cooling tube 2 can be less than outside it
The pressure in portion, simultaneously because the effect of water circulating pump 7, can further increase the pressure in cooling tube 2, in such pressure differential
Under effect, sealing agent 12 can be transported to the leak position of cooling tube 2, by sealing agent 12 to the gap or gap of leak position
Carry out leak stopping.The 2 online device for plugging of Cooling Tubes of Condenser of the utility model, the unit that need not stop transport can be online to cooling
Pipe 2 carries out leak stopping, and leak stopping is efficient.
In practical operation, operating personnel are to judge cooling tube 2 by the variation of pressure or temperature in condenser
Whether leak, in order to quickly and accurately grasp the service condition of cooling tube 2, enable an operator to detect cooling at the first time
Pipe 2 leaks, and leakage detection apparatus 10 is provided on the condensating water outlet tube 4.
The leakage detection apparatus 10 is water hardness in-line analyzer；The detector of the water hardness in-line analyzer with it is described cold
The 4 inside connection of condensate outlet.
Steam in the condenser shell side is processing medium, it is desirable that higher, processing medium is all that have passed through ion exchange,
Metal ion is substantially free of, hardness is relatively low；And the recirculated water in cooling tube 2 mainly plays cooling effect, it is desirable that relatively low；Therefore, coagulate
The hardness of condensed water in vapour device housing 1 is less than the hardness of the recirculated water in cooling tube 2.
The water hardness in-line analyzer is a kind of instrument that can be detected online to the hardness of water quality, and the water hardness refers to
The total concentration of calcium ions and magnesium ions in water sample, it is the important indicator of water quality.The water hardness in-line analyzer of the utility model is using electricity
Pole method test, it is composed of measuring electrode, reference electrode and temperature electrode, and the sensitive membrane of measuring electrode is carried with new neutral
Body is active material, there is equal selectivity to the calcium ions and magnesium ions of water sample, have structure novel, current potential stable, response quickly and
The characteristics of easy to use.During detection, the detector of the water hardness in-line analyzer extend into condensating water outlet tube 4 and with
Condensed water contacts, and the hardness of condensed water when cooling tube 2 is not leaked is set as the standard value of water hardness in-line analyzer,
When the hardness number that water hardness in-line analyzer detects is more than standard value, then it is judged as that cooling tube 2 leaks, at this time can
Leaking stoppage valve 901 is opened, leak stopping is carried out to cooling tube 2 by sealing agent 12.The leakage detection apparatus 10 can find that cooling tube 2 is let out in time
Leakage reduces cooling tube 2 and leaks harm to electricity generation system.
The leakage detection apparatus 10 of the utility model can also use such as lower structure, and the leakage detection apparatus 10 is examined online for sodium ion
Survey instrument；The injection port of the sodium ion on-line detector is connected with the condensating water outlet tube 4.
The model of the sodium ion on-line detector：DWG-8025A type sodium detectors.The instrument is surveyed using electrochemical process
Determine principle, electrochemical measurement system is formed by sodium ion electrode, calomel reference electrode, temperature electrode, it is molten in instrument when entering
After liquid constant temperature, the current potential measured by instrument changes with sodium ion in liquor concentration and is changed, in order to eliminate solution temperature ripple
It is dynamic and caused by error, instrument uses method for automatic temperature compensation, directly measures Na ion concentration value at this temperature.Detection
When, Na ion concentration value is set as standard value in condensed water when cooling tube 2 is not leaked, when detecting sodium in condensed water
When ion concentration value is more than standard value, then it is judged as that cooling tube 2 leaks, leaking stoppage valve 901 can be opened at this time, pass through leak stopping
Agent 12 carries out leak stopping to cooling tube 2.The leakage detection apparatus 10 can find that cooling tube 2 leaks in time, reduce cooling tube 2 and leak to hair
The harm of electric system.
The utility model can also do following improvement, further include PLC or DSC control systems, and the leaking stoppage valve 901 is electronic
Valve or operated pneumatic valve, the leaking stoppage valve 901 and leakage detection apparatus 10 are connected respectively with the control system, pass through control system pair
The realization of 2 online device for plugging of Cooling Tubes of Condenser automatically controls.During work, when leakage detection apparatus 10 detects the condensed water index of quality
When abnormal, open instructions is sent to leaking stoppage valve 901 by control system, leaking stoppage valve 901 is opened, by sealing agent 12 to cooling tube
2 carry out leak stopping；When leakage detection apparatus 10 detects that the condensed water index of quality recovers normal, by control system to leaking stoppage valve 901
Out code is sent, leaking stoppage valve 901 is closed, and completes the plugging operation of cooling tube 2.
Claims (4)
1. the online device for plugging of Cooling Tubes of Condenser, including condenser shell (1)；The condenser shell (1) is internally provided with
Cooling tube (2)；Steam inlet pipe (3) and condensating water outlet tube (4) are provided on the condenser shell (1)；The cooling tube
(2) have and be arranged on the external circulating water intake (5) of the condenser shell (1) and circulating water outlet (6)；The recirculated water into
Water circulating pump (7) is connected at mouth (5)；The import of the water circulating pump (7) is connected with circulating water pipe (8)；It is characterized in that：Institute
It states and device for plugging (9) is provided on circulating water pipe (8)；The device for plugging (9) includes leaking stoppage valve (901) and sealing agent bucket
(902)；The outlet of the sealing agent bucket (902) is connected with the import of the leaking stoppage valve (901)；Leaking stoppage valve (901) go out
Mouth is connected with the circulating water pipe (8).
2. the online device for plugging of Cooling Tubes of Condenser according to claim 1, it is characterised in that：The condensating water outlet tube
(4) leakage detection apparatus (10) is provided on.
3. the online device for plugging of Cooling Tubes of Condenser according to claim 2, it is characterised in that：The leakage detection apparatus (10)
For water hardness in-line analyzer；The detector of the water hardness in-line analyzer inside the condensating water outlet tube (4) with connecting.
4. the online device for plugging of Cooling Tubes of Condenser according to claim 2, it is characterised in that：The leakage detection apparatus (10)
For sodium ion on-line detector；The injection port of the sodium ion on-line detector is connected with the condensating water outlet tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215511.0U CN207394223U (en) | 2017-09-21 | 2017-09-21 | The online device for plugging of Cooling Tubes of Condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721215511.0U CN207394223U (en) | 2017-09-21 | 2017-09-21 | The online device for plugging of Cooling Tubes of Condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207394223U true CN207394223U (en) | 2018-05-22 |
Family
ID=62403600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721215511.0U Expired - Fee Related CN207394223U (en) | 2017-09-21 | 2017-09-21 | The online device for plugging of Cooling Tubes of Condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207394223U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073597A (en) * | 2019-11-12 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Online plugging agent for steam turbine condenser |
| CN114607950A (en) * | 2022-03-31 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Condenser leakage pipe online leakage detection equipment and method based on mechanical leakage stoppage |
-
2017
- 2017-09-21 CN CN201721215511.0U patent/CN207394223U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073597A (en) * | 2019-11-12 | 2020-04-28 | 山西晋城无烟煤矿业集团有限责任公司 | Online plugging agent for steam turbine condenser |
| CN114607950A (en) * | 2022-03-31 | 2022-06-10 | 华能国际电力股份有限公司德州电厂 | Condenser leakage pipe online leakage detection equipment and method based on mechanical leakage stoppage |
| CN114607950B (en) * | 2022-03-31 | 2024-06-11 | 华能国际电力股份有限公司德州电厂 | Online leakage detection equipment and method for condenser leakage pipe based on mechanical leakage blocking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |