CN201196530Y - Gas-water separator for condensation water sampling apparatus of condenser - Google Patents
Gas-water separator for condensation water sampling apparatus of condenser Download PDFInfo
- Publication number
- CN201196530Y CN201196530Y CNU2008200716948U CN200820071694U CN201196530Y CN 201196530 Y CN201196530 Y CN 201196530Y CN U2008200716948 U CNU2008200716948 U CN U2008200716948U CN 200820071694 U CN200820071694 U CN 200820071694U CN 201196530 Y CN201196530 Y CN 201196530Y
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- gas
- condenser
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Abstract
The utility model relates to a gas-water separator for a condensed water sampling device of a condenser. The gas-water separator is characterized in that the structure of the gas-water separator is as follows: the gas-water separator has a tank body; a gas outlet and a sample water outlet are arranged on the tank body; a sample water distributor is arranged inside the tank body; the water inlet of the sample water distributor and the sample water outlet of the tank body are connected in series with a sampling pipe in front of an inlet of a sampling pump; and the gas outlet of the tank body is communicated with a gas phase cavity on the upper part of the condenser through a vacuum valve arranged on a gas return pipe. A filter sieve is arranged below the sample water distributor in the tank body, and a decontamination window is arranged on the side wall of the tank body where the filter sieve is positioned. The gas-water separator can eliminate the gas separated by the sample water in the sampling pipe in front of the inlet of the sampling pump and recover the gas into the condenser in time, reduce the head loss of the sampling pipe in front of the inlet of the sampling pump, prevent the occurrence of a gas pileup effect, stabilize the pressure at the inlet of the sampling pump, and prevent the cavitation erosion of the pump. The gas-water separator has the advantages of good adaptability, good stability, good reliability, long service life, simple structure, and the like.
Description
Technical field
The utility model relates to gas and water separator, is the moisture trap of condenser condensed water sampling device in the heat power equipments such as a kind of thermal power plant or nuclear power station.
Background technology
Thermal power plant or nuclear power station are in power generation process, the weary gas of high temperature and high pressure steam after steam turbine generator is finished merit is cooled into condensate water in condenser, flow in the hot well of condenser, extracted by condensate pump again and send into the precision processing device and purify, the water after the purification or not treatedly be reused as the part of feedwater as boiler feedwater.Condenser is the vitals in the heat power equipment circulatory system, when the heat exchanger tube wear and leakage in the condenser, industrial colling enters and causes the condensate water severe contamination in the condensate water, contaminated condensate water will produce fouling, corrosion, serious threat safety in production and economical operation at positions such as boiler, steam turbines in the heat power equipment cyclic process.Therefore monitor the important monitoring point that condensate water water quality always is the electric power's chemical vapor monitoring.
Traditional practice is that sample point is located at the condensate pump exit, direct sample water, though this sampling mode is simpler, but can't distinguish is condensate pump, or the influence that the sampling line seepage causes to Analysis Results of Water Quality, can not differentiate the condenser seepage and occur in zone definite in the condenser, the science decision of influence maintenance and troubleshooting.
Existing a kind of condenser condensed water sampling device, see shown in Figure 1, the bottom of condenser 1 is a hot well 2, the sample water outlet of hot well 2 is connected with instrument panel 21 by probe tube 20, on probe tube 20, be provided with the first manual vacuum valve 3 from top to bottom successively, filter 4, sampling pump 5 and check-valves 7, on the probe tube 20 between sampling pump 5 and the check-valves 7, be connected with return pipe 12, return pipe 12 is connected with condenser 1, on return pipe 12, be provided with the second manual vacuum valve 6, its course of work is as follows: condenser 1 is under the degree of depth negative pressure state, usually absolute pressure is about 5～9Kpa, condensate water in the condenser 1 bottom hot well 2 enters sampling pump 5 through the first manual vacuum valve 3 and filter 4 under the extraction of sampling pump 5, under the effect of sampling pump 5, the supercharging of sample water is a malleation, sampling pump 5 outlet sample moisture are two-way, wherein one road sample water by check-valves 7 to instrument panel 21, for analysis meter and manual analysis provide sample water; Another road sample water is got back to condenser 1 by the manual vacuum valve 6 of second on the return pipe 12.Backwater is used for cooling off sampling pump 5, prevents that sampling pump 5 is overheated; Mechanical admixture in the filter 4 elimination sample water prevents that impurity from damaging the workpiece of sampling pump 5; Check-valves 7 prevents that sampling pump 5 from hindering when quitting work suddenly for some reason, and when first, second manual vacuum valve 3,6 failed to cut out, atmosphere was poured into condenser 1 and destroyed its vacuum, causes steam turbine generator normally not move; First, second manual vacuum valve 3,6 should be in closed condition when sampler quits work, the inner chamber of separating atmospheric and condenser 1 does not influence the normal operation of generating set; Pressure gauge 8 indication sampling pump outlet water sample pressure.
Existing another kind of condenser condensed water sampling device, see shown in Figure 2, be to have 4 sampling slips, be applicable to the sampler of condenser condensed water sampling with 4 zones, wherein the vacuum solenoid 9 on each branch road is under the effect of cyclelog, it is open-minded to circulate successively, realizes the auto-programming sampling.Analysis meter on the instrument panel 21 will be distinguished and show in the condenser 1 water quality of condensate water in each zone synchronously; Place the Pressure gauge 8 of sampling pump 5 outlets to be used to refer to the pressure that pumps water sample; Female pipe h is used for each branch road of UNICOM and filter 4.Investigate the condenser condensed water sampling device both domestic and external that is configured in power industry at present, the operation principle of its device is all identical with Fig. 1 or Fig. 2, find in actual use, because this device is because of adaptability, stability, poor reliability, when actual operating conditions had change slightly, to be that generating set is in service happened occasionally and allow in this change, and for example the liquid level of condensate water descends to some extent in the hot well, device loses the sampling ability with regard to cisco unity malfunction.Because the above-mentioned defective of prior art makes existing condenser condensed water sampling device useful life very short, almost is in state of paralysis, what have simply is removed.
Existing condenser condensed water sampling device sufficient analysis and research have been carried out, see sampling pump and be in very exacting terms work down, sampling pump should have special performances, as air tight, blowback water cools off function certainly and net positive suction head is low, for example water temperature is 40 ℃, the about 12Kpa of net positive suction head, characteristics such as about 1.2m high water head.Only at sampling pump inlet water sample pressure P
λWhen being not less than NPSH, cavitation promptly can not take place in pump ability operate as normal in the pump, otherwise can cause the impeller infringement of pump, produces noise and vibration, influences the proper flow of liquid in pump, the decline of pump discharge water sample flow and lift even cutout.
Sampling pump inlet pressure P
λTry to achieve by Fig. 3:
P
λ＝P
0+Hd-f
In the formula: P
0Vacuum in the-condenser.Absolute pressure is about 5～9Kpa, and promptly the relative vacuum degree is 95～91Kpa.
H-hot well condensate water liquid level generally about 2.5m, quite produces the pressure about 25Kpa to the vertical height at sampling pump impeller center.
D-specific gravity.
The loss in head of probe tube system before f-pump, with roughness in probe tube internal diameter, length, the pipe, the valve latus rectum in the probe tube system, fluid viscosity, fluid flow is relevant.
Because the water sample in the sampling pump probe tube is under the degree of depth negative pressure, dissolved gases is separated out attached to inside pipe wall and is also grown up gradually in the water, or becomes in the bubble ingoing stream, drift about and assemble some position, manage in the h as mother, cause the preceding sampling pipe system head loss of pump f to increase pump intake pressure P
λReduce.Meanwhile, bubble in the current is carried in the cavity that enters pump, pump inner fluid resistance is increased, and NPSH increases, and pump intake pressure and pump cavitation surplus difference reduce, pump discharge is descended, the backflow water yield reduces, and the operating temperature of pump raises, and causes cavitation erosion formation in the pump, until pump cutout, the process that this process slowly accumulates often.Fig. 1, condenser condensed water sampling device shown in Figure 2, when starting work, often be normal sampling state, carrying out along with sampling process, experience a few hours or more longer time, sampling pump loses sampled functions because of cavitation erosion, particularly when the condensate water liquid level is low, and the formation of easier promotion said process.The basic reason place of this class sampler adaptability that Here it is, stability, poor reliability.
The utility model content
The purpose of this utility model is, prior art is carried out substantial improvements, a kind of long-term puzzlement those skilled in the art are provided, the technical barrier of thirsting for solving always but failing all the time to succeed, adaptability, stability, good reliability, long service life, the moisture trap of condenser condensed water sampling device simple in structure.
The purpose of this utility model is realized by following technical scheme: a kind of moisture trap of condenser condensed water sampling device is characterized in that; The structure of described moisture trap 10 is, has tank body 13, is provided with sample water dispenser 14 in tank body 13, is provided with gas outlet 15 in tank body 13 upper ends, is provided with sample water outlet 17 in tank body 13 lower ends; The water inlet of sample water dispenser 14 and the sample water outlet of tank body 17 are serially connected with on the preceding probe tube 20 of sampling pump 5 inlets, and the gas outlet 15 of tank body is communicated with the gas phase cavity volume on condenser 1 top by the vacuum valve 9 that is provided with on muffler 11.In the tank body 13 of described moisture trap, below being positioned at sample water dispenser 14, be provided with screen pack 18, on the tank wall of described screen pack 18 positions, be provided with the form 19 of removing contamination.The structure of form 19 of removing contamination is that sealing ring 28, transparent optical window 27 and the sealing that is connected with soil cleaning port stifled 26 is housed in soil cleaning port.
The beneficial effect of the moisture trap of the utility model condenser condensed water sampling device is embodied in:
Since the sample water outlet of the water inlet of the sample water dispenser of moisture trap and tank body be serially connected with on the preceding probe tube of sampling pump inlet, the gas outlet of tank body is communicated with the gas phase cavity volume on condenser top by the vacuum valve that is provided with on muffler, can remove gas and the playback in time that probe tube sample elutriation goes out before the sampling pump inlet goes in the condenser, reduce the loss in head f of the preceding probe tube of sampling pump inlet, prevent the generation of gas build effect, stablized sampling pump inlet pressure P
λ, prevent that the cavitation phenomenons of pump from taking place.
2. removed and entered the gas of separating out in the water sample in the sampling pump, reduced and stablized resistance during water sample flows in the pump, stablized pump discharge flow and circling water flow rate, prevented that the pump work temperature is progressively soaring, avoided the formation of cavitation conditions in the sampling pump.
3. owing in the tank body of moisture trap, below being positioned at the sample water dispenser, be provided with screen pack, on the tank wall of screen pack position, be provided with the form of removing contamination, in moisture trap, finish and the filtration of mechanical admixture in the sample water and sight investigated thoroughly remove, save a filter.
4. fundamentally solve long-term puzzlement those skilled in the art, thirst for to have solved but the technical barrier of failing all the time to succeed always, had adaptability, stability, good reliability, long service life, advantages of simple structure and simple.
Description of drawings
1 condenser, 2 hot wells, 3 first manual vacuum valves, 4 filters, 5 sampling pumps, 6 second manual vacuum valves, 7 check-valves, 8 Pressure gauges, 9 vacuum valves, 10 moisture traps, 11 mufflers, 12 return pipes, 13 tank bodies, 14 sample water dispensers, 15 gas outlets, 16 some apopores, 17 sample water outlets, 18 screen packs, 19 forms of removing contamination, 20 probe tubes, 21 instrument panels, 22 horizontal straight tubes, 23 vertical straight tubes, 24 bend pipes, 25 cone spray heads, 26 sealings are stifled, 27 transparent optical windows, 28 sealing rings.
Fig. 1 is existing a kind of condenser condensed water sampling device structural representation.
Fig. 2 is existing another kind of condenser condensed water sampling device structural representation.
Fig. 3 is existing condenser condensed water sampling device parameters relationship schematic diagram.
Fig. 4 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 1.
Fig. 5 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 2.
Fig. 6 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 3.
Fig. 7 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 4.
Fig. 8 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 5.
Fig. 9 is the local enlarged diagram of I among Fig. 8.
Figure 10 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 6.
Figure 11 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 7.
Figure 12 is the structural representation of moisture trap of the condenser condensed water sampling device of the utility model embodiment 8.
Figure 13 is that the moisture trap of the condenser condensed water sampling device of the utility model embodiment 2 is connected in the structural representation in the condenser condensed water sampling device.
Figure 14 is that the moisture trap of the condenser condensed water sampling device of the utility model embodiment 5 is connected in the structural representation in the condenser condensed water sampling device.
The specific embodiment
Utilize drawings and Examples that the utility model is elaborated below:
Embodiment 1: with reference to Fig. 4, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 1 is, has tank body 13, is provided with sample water dispenser 14 in tank body 13, be provided with gas outlet 15 in tank body 13 upper ends, be provided with sample water outlet 17 in tank body 13 lower ends.Described sample water dispenser 14 is a horizontal straight tube 22, the laterally termination of straight tube 22 sealing, and laterally the sidewall of straight tube 22 is provided with some apopores 16, and this sample moisture is joined 14 and is inserted in the tank body 13 and be connected on the sidewall of tank body 13 from tank body 13 sidewalls.
Embodiment 2: with reference to Fig. 5, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 2 is substantially the same manner as Example 1, difference only is, sample water dispenser 14 is made of perpendicular two straight tubes that are solidly fixed, vertical straight tube 23 places and is connected on tank body 13 upper end covers, laterally the two ends opening or the sealing of straight tube 22 are provided with some apopores 16 on the sidewall of transverse pipe 22.
Embodiment 3: with reference to Fig. 6, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 3 is substantially the same manner as Example 1, difference only is, sample water dispenser 14 is bend pipes 24 and the cone spray head 25 formation one that is connected, one bend pipe 25 places and is connected on the sidewall of tank body 13, is provided with some apopores 16 in cone spray head 25 lower ends.
Embodiment 4: with reference to Fig. 7, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 4 is substantially the same manner as Example 3, difference only is, sample water dispenser 14 is vertical straight tubes 23 and the cone spray head 25 formation one that is connected, and vertical straight tube 23 places and is connected on tank body 13 upper end covers.
Embodiment 5: with reference to Fig. 8 and 9, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 5 is substantially the same manner as Example 1, difference only is, be provided with screen pack 18 in the tank body 13 of moisture trap, below being positioned at sample water dispenser 14, tank body 13 sidewalls of screen pack 18 positions are provided with the form 19 of removing contamination.The structure of form 19 of removing contamination is that sealing ring 28, transparent optical window 27 and the sealing that is connected with soil cleaning port stifled 26 is housed in soil cleaning port.
Embodiment 6: with reference to Figure 10, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 6 is substantially the same manner as Example 2, difference only is, be provided with screen pack 18 in the tank body 13 of moisture trap, below being positioned at sample water dispenser 14, tank body 13 sidewalls of screen pack 18 positions are provided with the form 19 of removing contamination.The form 19 of removing contamination is identical with embodiment 5.
Embodiment 7: with reference to Figure 11, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 7 is substantially the same manner as Example 3, difference only is, be provided with screen pack 18 in the tank body 13 of moisture trap, below being positioned at sample water dispenser 14, tank body 13 sidewalls of screen pack 18 positions are provided with the form 19 of removing contamination.The form 19 of removing contamination is identical with embodiment 5.
Embodiment 8: with reference to Figure 12, the structure of the moisture trap 10 of the condenser condensed water sampling device of embodiment 8 is substantially the same manner as Example 4, difference only is, be provided with screen pack 18 in the tank body 13 of moisture trap, below being positioned at sample water dispenser 14, tank body 13 sidewalls of screen pack 18 positions are provided with the form 19 of removing contamination.The form 19 of removing contamination is identical with embodiment 5.
With reference to Figure 13, the moisture trap of condenser condensed water sampling device is the moisture trap 10 that screen pack 18 is not set, the water inlet of the sample water dispenser 14 of moisture trap 10 and the sample water outlet 17 of tank body are serially connected with on the preceding probe tube 20 of sampling pump 5 inlets, and the gas outlet 15 of tank body is communicated with the gas phase cavity volume on condenser 1 top by the vacuum valve 9 that is provided with on muffler 11.The bottom of condenser 1 is a hot well 2, the sample water outlet of hot well 2 is connected with instrument panel 21 by probe tube 20, on probe tube 20, be provided with the first manual vacuum valve 3, filter 4, sampling pump 5 and check-valves 7 from top to bottom successively, on the probe tube 20 between sampling pump 5 and the check-valves 7, be connected with return pipe 12, return pipe 12 is connected with condenser 1, is provided with the second manual vacuum valve 6 on return pipe 12.Make water sample more evenly disperse the back to fall to the bottom from tank body 13 internal upper parts of moisture trap 10, carry the sample water of gas and in dropping process, finish gas-water separation, water falls the sample water that accumulates in bottoms in the tank body 13 and enters sampling pump 5 from the sample water outlet 17 of tank body through probe tube 20, separated gas rises, and accumulates in the gas phase cavity volume that the vacuum valve 9 that is provided with on venthole 15, muffler 11 and the muffler of tank body 13 internal upper parts via tank body returns condenser 1 top.Accumulating in bottoms in the tank body 13 has removed the sample water of gas and has entered sampling pump 5 via sample water outlet 17, probe tube 20 and sampling pump 5 inlets of tank body.
With reference to Figure 14, the moisture trap of condenser condensed water sampling device is the moisture trap 10 that screen pack 18 is set, the water inlet of the sample water dispenser 14 of moisture trap 10 and the sample water outlet 17 of tank body are serially connected with on the preceding probe tube 20 of sampling pump 5 inlets, and the gas outlet 15 of tank body is communicated with the gas phase cavity volume on condenser 1 top by the vacuum valve 9 that is provided with on muffler 11.Because in the tank body of moisture trap 10, be provided with screen pack 18, so, adopt the condenser condensed water sampling device of the moisture trap 10 of band screen pack can save a filter.Be provided with the form 19 of removing contamination owing to be provided with the tank wall of screen pack 18 and screen pack 18 positions in the tank body of moisture trap 10, when needs are removed the mechanical admixture that gathers on the screen pack 18, can turn on the sealing stifled 26 on the form 19 of removing contamination, take off transparent optical window 27 and sealing ring 28, just mechanical admixture can be gone out clearly from window, with each parts reinstall, and it is screwed to sealing state after the removing.Adopt transparent optical window can easily observe 18 sections dirty states of screen pack, so that in time remove contamination.
Claims (3)
1. the moisture trap of a condenser condensed water sampling device, it is characterized in that: the structure of described moisture trap (10) is, has tank body (13), in tank body (13), be provided with sample water dispenser (14), be provided with gas outlet (15) in tank body (13) upper end, be provided with sample water outlet (17) in tank body (13) lower end; The sample water outlet (17) of the water inlet of sample water dispenser (14) and tank body is serially connected with on the preceding probe tube (20) of sampling pump (5) inlet, and the gas outlet of tank body (15) are communicated with the gas phase cavity volume on condenser (1) top by going up the vacuum valve (9) that is provided with at muffler (11).
2. the moisture trap of condenser condensed water sampling device according to claim 1, it is characterized in that: in the tank body (13) of described moisture trap, be positioned at sample water dispenser (14) below and be provided with screen pack 18, on the tank wall of described screen pack (18) position, be provided with the form of removing contamination (19).
3. the moisture trap of condenser condensed water sampling device according to claim 2, it is characterized in that: the structure of the described form of removing contamination (19) is that sealing ring (28), transparent optical window (27) and the sealing that is connected with soil cleaning port stifled (26) are housed in soil cleaning port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200716948U CN201196530Y (en) | 2008-04-08 | 2008-04-08 | Gas-water separator for condensation water sampling apparatus of condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200716948U CN201196530Y (en) | 2008-04-08 | 2008-04-08 | Gas-water separator for condensation water sampling apparatus of condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196530Y true CN201196530Y (en) | 2009-02-18 |
Family
ID=40416165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200716948U Expired - Lifetime CN201196530Y (en) | 2008-04-08 | 2008-04-08 | Gas-water separator for condensation water sampling apparatus of condenser |
Country Status (1)
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|---|---|
| CN (1) | CN201196530Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261202B (en) * | 2008-04-08 | 2010-08-25 | 承慰才 | Condenser condensed water sampling device separator for water and vapor |
| CN101922446A (en) * | 2010-08-13 | 2010-12-22 | 合肥通用机械研究院 | Gas cooler for positive displacement refrigerant compressor test unit |
| CN103383296A (en) * | 2013-07-12 | 2013-11-06 | 扬州宝力电器有限公司 | Leakage detecting system for condensers |
-
2008
- 2008-04-08 CN CNU2008200716948U patent/CN201196530Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261202B (en) * | 2008-04-08 | 2010-08-25 | 承慰才 | Condenser condensed water sampling device separator for water and vapor |
| CN101922446A (en) * | 2010-08-13 | 2010-12-22 | 合肥通用机械研究院 | Gas cooler for positive displacement refrigerant compressor test unit |
| CN101922446B (en) * | 2010-08-13 | 2012-10-31 | 合肥通用机械研究院 | Gas cooler for positive displacement refrigerant compressor test unit |
| CN103383296A (en) * | 2013-07-12 | 2013-11-06 | 扬州宝力电器有限公司 | Leakage detecting system for condensers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090218 Effective date of abandoning: 20080408 |