CN202692739U - Air-exhaust water-discharge structure of water film evaporation condenser - Google Patents
Air-exhaust water-discharge structure of water film evaporation condenser Download PDFInfo
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- CN202692739U CN202692739U CN 201220248934 CN201220248934U CN202692739U CN 202692739 U CN202692739 U CN 202692739U CN 201220248934 CN201220248934 CN 201220248934 CN 201220248934 U CN201220248934 U CN 201220248934U CN 202692739 U CN202692739 U CN 202692739U
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- bobbin carriage
- water
- film evaporation
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Abstract
The utility model relates to a steam power circulation system of a turbine generator set of a thermal power plant, in particular to an air-exhaust water-discharge structure of water film evaporation condenser. The air-exhaust water-discharge structure comprises a steam inlet valve, an inlet pipe box, a steering pipe box, an outlet pipe box, a heat exchange pipe and a water discharge valve which are sequentially connected, wherein the horizontal position of the inlet pipe box, the heat exchange pipe, the steering pipe box and the outlet pipe box is reduced sequentially. The structure has the advantage that the height of a pipeline, the pipe boxes and the heat exchange pipe are sequentially reduced from the back of the steam inlet valve, so that surplus condensed water can converge at the lower position to be discharged when the water film evaporation condenser is closed. Top plates of the pipe boxes are arch-shaped, and air exhaust valves are arranged at the highest points of the arches to absorb condensed air. Base plates of the pipe boxes are recessed in arch mode, and surplus water valves are arranged at the lowest points of the recesses to completely discharge the surplus condensed water and avoid damage to the equipment caused by freezing of the surplus water when the condenser is closed.
Description
Technical field
The utility model relates to the Steam Power Circulation system of thermal power plant Turbo-generator Set, is specifically related to a kind of forced ventilation water film evaporation condenser discharge structure of bleeding.
Background technology
The Steam Power Circulation in thermal power plant need to be condensed into water with the exhaust steam of steam turbine outlet.The thermal power plant of North China and the Northwest is restricted by water resource at present, has been widely used Direct Air-Cooled condensing mode.The summer high temperature period is power load spike period just also, and it is in parallel with Direct Air-Cooled that the water film evaporation condenser can be used as the spike condensing system, and unit is completely sent out when guaranteeing summer high temperature.If with the cooling water source of middle water as the water film evaporation condenser, then move the water film evaporation condenser in the time at non-summer high temperature, also can reduce turbine back pressure, multiple electricity; Perhaps keep turbine back pressure, but reduce Direct Air-Cooled heat exchange area and the blower fan quantity that puts into operation, reduce operating cost.
In the condenser running, fixed gas can build up, and when fixed gas is accumulated to when a certain amount of, can occupy a part of heat exchange area, and the condensing effect can descend, so need to extract out continuously fixed gas in the running or intermittently extract fixed gas out.When temperature is reduced near 0 ℃, freeze for avoiding the cooling water in the water film evaporation condenser, can close the water film evaporation condenser.When the water film evaporation condenser cuts out, emptying remaining water everywhere, avoid freezing and expansion and damage the water film evaporation condenser.
The utility model is for the problem that above-mentioned condensing mode exists, and proposed a kind of " water film evaporation condenser bleed discharge structure ".
The utility model content
The utility model for above-mentioned the deficiencies in the prior art technical problem to be solved is: the discharge structure of bleeding that a kind of water film evaporation condenser for the thermal power plant is provided.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of water film evaporation condenser discharge structure of bleeding, this discharge structure of bleeding comprises admission valve, import bobbin carriage, turns to bobbin carriage, exports bobbin carriage, heat exchanger tube and water discharging valve, admission valve, import bobbin carriage, heat exchanger tube, turn to bobbin carriage, outlet bobbin carriage to be connected with water discharging valve and to connect, wherein import bobbin carriage, heat exchanger tube, turn to the horizontal level of bobbin carriage, outlet bobbin carriage to reduce successively.The feature of this discharge structure of bleeding is, flow to along steam and condensate water, from the admission valve of water film evaporation condenser backward, pipeline, bobbin carriage and heat exchanger tube etc. reduce gradually, so that remaining condensate water is compiled and is discharged to lower when closing the water film evaporation condenser, when avoiding low ambient temperature, the remaining water freezing in the tube side expands and damages the water film evaporation condenser.
Described import bobbin carriage, turn to the bobbin carriage top board of bobbin carriage and outlet bobbin carriage to be consisted of to the shape that arches up out by the flat board at 3 ° to 5 ° at two inclination angles, offer bleeding point at the arch highest point, the dress extraction valve.
The import bobbin carriage, turn to the bobbin carriage base plate of bobbin carriage and outlet bobbin carriage to consist of downward the arch by the flat board at 3 ° to 5 ° at two inclination angles at least shape, offer discharge outlet at lower arch lowest part, the dress draining valve.
When making the bobbin carriage of water film evaporation condenser, bobbin carriage top board and base plate are made inclination, at top board highest point installing evacuating valve, at the remaining penstock of base plate lowest part installing.In addition, before condenser starts, also can vacuumize by evacuating valve.
In water film evaporation formula condenser, fixed gas is exactly the air of vacuum system of bleeding basically.In the import bobbin carriage, quantity of steam is very large, and steam flow rate is also very large, micro-fixed gas not can with steam layered, can not accumulate yet.The heat exchanger tube of condenser is the uiform section straight tube, and when steam carried micro-fixed gas and flows through pipeline, fixed gas can not accumulate in pipe.In the first tube side of condenser, part steam condensation Cheng Shui, steam, fixed gas and condensate water enter and turn to bobbin carriage, and the steam that is flowing in bobbin carriage and fixed gas can layerings.Even under Action of Gravity Field, by density stratification, because atmospheric density is between steam and condensate water, turn to so air is still being swept along by steam and condensate water, flow to the second tube side.Remaining steam all is condensed into water in the second tube side, enters the outlet bobbin carriage.In the outlet bobbin carriage, fixed gas can accumulate above condensate water gradually.So when operation will be opened the evacuating valve of outlet box top, according to the aperture of the Flow-rate adjustment extraction valve of fixed gas, continuous sucking fixed gas.
Before the water film evaporation condenser started operation, the evacuating valve at three bobbin carriage tops all will be opened, so that rapid vacuumizing.After the startup, close the evacuating valve of import bobbin carriage and steering tube box top, only open the evacuating valve of outlet box top.
The beneficial effects of the utility model are: from admission valve backward, pipeline, bobbin carriage and heat exchanger tube progressively reduce, so that when closing the water film evaporation condenser, remaining condensate water is compiled and discharged to lower.The top board of each bobbin carriage is to the shape that arches up out, establishes evacuating valve at the arch peak, so that the suction fixed gas.The base plate of each bobbin carriage is downward the arch and shape, establishes remaining penstock in lower arch minimum point, so that emptying residue condensate water when closing condenser is avoided remaining water freezing damage equipment.
Description of drawings:
Fig. 1 is water film evaporation condenser tube side schematic diagram.
Fig. 2 is the utility model water film evaporation condenser bobbin carriage discharge structure schematic diagram of bleeding.
Description of reference numerals:
1, admission valve 2, import bobbin carriage 3, heat exchanger tube
4, turn to bobbin carriage 5, outlet bobbin carriage 6, water discharging valve
7, bobbin carriage base plate 8, remaining penstock 9, bobbin carriage top board
10, evacuating valve
The specific embodiment
The utility model is to implement like this:
With reference to Fig. 1, this discharge structure of bleeding comprises admission valve 1, import bobbin carriage 2, turns to bobbin carriage 4, exports bobbin carriage 5, heat exchanger tube 3 and water discharging valve 6, admission valve 1, import bobbin carriage 2, heat exchanger tube 3, turn to bobbin carriage 4, outlet bobbin carriage 5 to be connected with water discharging valve successively to connect, wherein import bobbin carriage 2, heat exchanger tube 3, turn to the horizontal level of bobbin carriage 4, outlet bobbin carriage 5 to reduce successively.From the admission valve 1 of condenser to import bobbin carriage 2, this segment pipe should reduce gradually, and the decline inclination angle is 3 ° to 5 °, so that when stopping transport, condensate water enters import bobbin carriage 2 and discharges.The heat exchanger tube 3 of each tube side should keep 3 ° to 5 ° inclination angle, so that when stopping transport, condensate water enters turn to bobbin carriage 4 or the outlet bobbin carriage 5 of this tube side end and discharges.
With reference to Fig. 2, import bobbin carriage 2, turn to bobbin carriage 4 and the outlet bobbin carriage 5 in, top board is made of to the shape that arches up out the flat board 9 at 3 ° to 5 ° at two inclination angles at least, to the peak that arches up out, offers bleeding point, the dress evacuating valve 10.In water film evaporation condenser when operation,, the extraction valve of outlet box top can be opened continuously or indirectly, discharges fixed gas, too much occupies the heat exchange area of pipe to avoid fixed gas accumulation in the bobbin carriage, affects the condensing effect.Before the water film evaporation condenser starts, also can vacuumize by the extraction valve on the bobbin carriage is auxiliary.
With reference to Fig. 2, import bobbin carriage 2, turn in bobbin carriage 4 and the outlet bobbin carriage 5, base plate consists of downward the arch by the flat board 7 at 3 ° to 5 ° at two inclination angles at least and shape, encircles downwards minimum point, offers discharge outlet, the remaining penstock 8 of dress.When the water film evaporation condenser cut out, the remaining current inlet pipe case in the heat exchanger tube, the remaining water in the bobbin carriage flow to lowest part and discharge, and avoided freezing and expansion and damaged the water film evaporation condenser.
Before the water film evaporation condenser started operation, the evacuating valve at three bobbin carriage tops all will be opened, so that rapid vacuumizing.After the startup, close the evacuating valve of import bobbin carriage and steering tube box top, only open the evacuating valve of outlet box top.
The above, it only is the bleed preferred embodiment of discharge structure of a kind of water film evaporation condenser of the utility model, be not that technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any trickle modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. water film evaporation condenser discharge structure of bleeding, it is characterized in that: this discharge structure of bleeding comprises admission valve (1), import bobbin carriage (2), turn to bobbin carriage (4), outlet bobbin carriage (5), heat exchanger tube (3) and water discharging valve (6), admission valve (1), import bobbin carriage (2), heat exchanger tube (3), turn to bobbin carriage (4), outlet bobbin carriage (5) is connected 6 with water discharging valve) successively connection, import bobbin carriage (2) wherein, heat exchanger tube (3), turn to bobbin carriage (4), the horizontal level of outlet bobbin carriage (5) reduces successively.
2. the water film evaporation condenser according to claim 1 discharge structure of bleeding, it is characterized in that described import bobbin carriage (2), turn to the bobbin carriage top board of bobbin carriage (4) and outlet bobbin carriage (5) to be consisted of to the shape that arches up out by the flat board (9) at 3 ° to 5 ° at two inclination angles, offer bleeding point at the arch highest point, dress extraction valve (10).
3. the water film evaporation condenser according to claim 1 discharge structure of bleeding, it is characterized in that described import bobbin carriage (2), turn to the bobbin carriage base plate of bobbin carriage (4) and outlet bobbin carriage (5) to be consisted of to encircle by the flat board (7) at 3 ° to 5 ° at two inclination angles at least downwards shape, offer discharge outlet at lower arch lowest part, dress draining valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248934 CN202692739U (en) | 2012-05-30 | 2012-05-30 | Air-exhaust water-discharge structure of water film evaporation condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248934 CN202692739U (en) | 2012-05-30 | 2012-05-30 | Air-exhaust water-discharge structure of water film evaporation condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692739U true CN202692739U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220248934 Expired - Fee Related CN202692739U (en) | 2012-05-30 | 2012-05-30 | Air-exhaust water-discharge structure of water film evaporation condenser |
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|---|---|
| CN (1) | CN202692739U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994670A (en) * | 2014-05-05 | 2014-08-20 | 覃健林 | Radiator with waste heat recovery function |
| CN105157445A (en) * | 2015-08-21 | 2015-12-16 | 洛阳正远石化有限公司 | Technology for baffling vacuumizing device for power station peak cooler |
| CN113154894A (en) * | 2021-05-11 | 2021-07-23 | 西安热工研究院有限公司 | Slightly-inclined condenser tube bundle arrangement method capable of reducing thermal resistance |
-
2012
- 2012-05-30 CN CN 201220248934 patent/CN202692739U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994670A (en) * | 2014-05-05 | 2014-08-20 | 覃健林 | Radiator with waste heat recovery function |
| CN103994670B (en) * | 2014-05-05 | 2016-05-04 | 覃健林 | A kind of radiator with heat recovery |
| CN105157445A (en) * | 2015-08-21 | 2015-12-16 | 洛阳正远石化有限公司 | Technology for baffling vacuumizing device for power station peak cooler |
| CN113154894A (en) * | 2021-05-11 | 2021-07-23 | 西安热工研究院有限公司 | Slightly-inclined condenser tube bundle arrangement method capable of reducing thermal resistance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130123 Termination date: 20190530 |