CN202734884U - Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser - Google Patents

Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser Download PDF

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Publication number
CN202734884U
CN202734884U CN2012203892859U CN201220389285U CN202734884U CN 202734884 U CN202734884 U CN 202734884U CN 2012203892859 U CN2012203892859 U CN 2012203892859U CN 201220389285 U CN201220389285 U CN 201220389285U CN 202734884 U CN202734884 U CN 202734884U
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CN
China
Prior art keywords
flow measuring
steam
medium
measuring probe
cooled condenser
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 - Lifetime
Application number
CN2012203892859U
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Chinese (zh)
Inventor
方占岭
李振中
雷平和
刘小平
尤海君
薛云
邢百俊
冯璟
付俊杰
杨国春
徐军锋
李文杰
李小军
桂东波
郑立军
王春儒
彭波
张本东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongke Kelin Energy Saving And Environmental Technology Co ltd
Original Assignee
Colin Environment-Friendly Project Co Ltd Of Liaoning
Datang International Power Generation Co Ltd
North China Electric Power Design Institute of China Power Engineering Consulting Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Colin Environment-Friendly Project Co Ltd Of Liaoning, Datang International Power Generation Co Ltd, North China Electric Power Design Institute of China Power Engineering Consulting Group Corp filed Critical Colin Environment-Friendly Project Co Ltd Of Liaoning
Priority to CN2012203892859U priority Critical patent/CN202734884U/en
Application granted granted Critical
Publication of CN202734884U publication Critical patent/CN202734884U/en
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Abstract

The utility model discloses a flow measuring unit for steam-condensed water in a vacuum pipe of a direct air-cooled condenser. The flow measuring unit comprises a fluid medium inlet (1), a pipe pump (2), a flow meter (3) and a fluid medium outlet (4), wherein the fluid medium inlet (1), the pipe pump (2), the flow meter (3) and the fluid medium outlet (4) are sequentially connected by pipes. The flow measuring unit is characterized by further comprising a liquid level meter (5), wherein a measuring bypath is vertically extended out of a pipe between the fluid medium inlet (1) and the pipe pump (2) downwards, and the liquid level meter (5) is arranged on the measuring bypath. The flow measuring unit disclosed by the utility model has the advantages of simple structure, economy and practicability, precision in measurement of the flow rate of steam-condensed water of the air cooling unit and the like.

Description

The flow measuring probe of steam condensate in a kind of direct air cooled condenser vacuum pipe
Technical field
The utility model relates to the direct air cooling system in the thermal power generation field, and the flow measuring probe of steam condensate in a kind of direct air cooled condenser vacuum pipe is provided especially.
Background technology
At present, China has been widely used in direct air cooling system the coal-fired thermal power generation unit of water-deficient area.Air-cooled steam turbine low pressure (LP) cylinder steam discharge is distributed by the female pipe of steam distribution and flows to that air cooling tubes condenser is suitable, the adverse current pipeline, under the air cooling blower fan forced heat-exchanging, carry out heat transfer free convection with surrounding air, steam condensate is collected to the condensate water lower collecting box, through being connected under the vacuum pump effect with the enclosed pipeline, the steam condensate of each air cooling unit and part not condensing vapour are back to condensate system.
For improving power generator group Operation safety and economy, in monitoring factory in the air cooling tubes condenser condensate water total flow, be necessary to obtain the heat exchange property of air cooling unit under the Various Seasonal working condition by test, namely carry out the measuring and calculation of the air cooling tubes condenser finned tube coefficient of heat transfer, this just need to carry out on-line measurement to each air cooling unit steam condensation coolant-temperature gage and flow.In the Power Plant operation collection control DCS system, the condensing water flow measuring point is arranged on every unit condensate water house steward, and test instrumentation is the online flow rate test instrument with teletransmission interface.Because the fluid media (medium) in the condensate line comprises the steam that part is not condensed and the water that condenses fully, it is the approximate stream-liquid two-phase flow state that is in the non-full pipe operation, affected by it, existing flow measurement device comprises contact and contactless flow-meter, all can't guarantee the requirement of accuracy of measurement.
The utility model content
The purpose of this utility model provides steam condensate flow measuring probe in a kind of direct air cooled condenser vacuum pipe, to solve in the prior art the inaccurate problem of air cooling unit steam condensation measuring water flow.
The flow measuring probe of steam condensate in the direct air cooled condenser vacuum pipe that the utility model provides, this flow measuring probe includes fluid media (medium) import 1, in-line pump 2, flowmeter 3 and fluid media (medium) outlet 4, wherein fluid media (medium) import 1, in-line pump 2, flowmeter 3 are connected 4 and connect successively by pipeline with fluid media (medium), it is characterized in that: described flow measuring probe also includes liquid level gauge 5, draw vertically downward the measurement bypass on the pipeline between fluid media (medium) import 1 and the in-line pump 2, liquid level gauge 5 is installed in to be measured in the bypass.
Wherein, described flowmeter 3 is the calibrating nozzle flowmeter.
Steam condensate flow measuring probe in the direct air cooled condenser vacuum pipe that the utility model provides, the steam condensate that needs to measure flows into from the fluid media (medium) import, flow out from the fluid media (medium) outlet, wherein in this measurement bypass vertically downward of the liquid level gauge that increases, because the proportion of steam, condensate water two media is different, so that heavier condensate water is to the whereabouts, so condensate water full packages in measuring pipeline flows; In addition, because vertically downward measurement bypass outlet conduit causes the exit of former condensate water return branch vertically upward, therefore just form a U-shaped measurement pipeline, guaranteed that again the full packages of measuring in the pipeline flows, for the accuracy of flow measurement provides condition.
In addition, the flow measuring probe in the utility model also includes the frequency conversion in-line pump, and described frequency conversion in-line pump is connected to be measured in the bypass, and flow all returns female pipe in the measurement pipeline of guaranteeing to draw downwards, has improved stability and the reliability of unit operation.
Steam condensate flow measuring probe in the direct air cooled condenser vacuum pipe that the utility model provides, its advantage is: simple in structure, economical and practical, and also accurate to the measurement of air cooling unit steam condensation discharge.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 is the flow measuring probe structural representation of steam condensate in the direct air cooled condenser vacuum pipe.
Embodiment
Embodiment 1
Be illustrated in figure 1 as the flow measuring probe of steam condensate in a kind of direct air cooled condenser vacuum pipe, this flow measuring probe includes fluid media (medium) import 1, in-line pump 2, flowmeter 3 and fluid media (medium) outlet 4, wherein fluid media (medium) import 1, in-line pump 2, flowmeter 3 are connected 4 and connect successively by pipeline with fluid media (medium), described flowmeter 3 is the calibrating nozzle flowmeter; Described flow measuring probe also includes liquid level gauge 5, draws vertically downward the measurement bypass on the pipeline between fluid media (medium) import 1 and the in-line pump 2, and liquid level gauge 5 is installed in to be measured in the bypass.
Embodiment 2
The flow measuring probe of steam condensate in a kind of direct air cooled condenser vacuum pipe, this flow measuring probe includes fluid media (medium) import 1, in-line pump 2, flowmeter 3 and fluid media (medium) outlet 4, and wherein fluid media (medium) import 1, in-line pump 2, flowmeter 3 are connected 4 and connect successively by pipeline with fluid media (medium); Described flow measuring probe also includes liquid level gauge 5, on the pipeline between fluid media (medium) import 1 and the in-line pump 2, draw vertically downward the measurement bypass, liquid level gauge 5 is installed in to be measured in the bypass, and the frequency conversion in-line pump is installed also in the measurement bypass, all return female pipe with flow in the measurement pipeline of guaranteeing to draw downwards, improved stability and the reliability of unit operation.

Claims (3)

1. the flow measuring probe of steam condensate in the direct air cooled condenser vacuum pipe, this flow measuring probe includes fluid media (medium) import (1), in-line pump (2), flowmeter (3) and fluid media (medium) outlet (4), wherein fluid media (medium) import (1), in-line pump (2), flowmeter (3) is connected (4) and connects successively by pipeline with fluid media (medium), it is characterized in that: described flow measuring probe also includes liquid level gauge (5), draw vertically downward the measurement bypass on the pipeline between fluid media (medium) import (1) and the in-line pump (2), liquid level gauge (5) is installed in to be measured in the bypass.
2. according to the flow measuring probe of steam condensate in the described direct air cooled condenser vacuum pipe of claim 1, it is characterized in that: described flow measuring probe also includes the frequency conversion in-line pump, and the frequency conversion in-line pump is connected to be measured in the bypass.
3. according to the flow measuring probe of steam condensate in the described direct air cooled condenser vacuum pipe of claim 1, it is characterized in that: described flowmeter (3) is the calibrating nozzle flowmeter.
CN2012203892859U 2012-08-08 2012-08-08 Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser Expired - Lifetime CN202734884U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012203892859U CN202734884U (en) 2012-08-08 2012-08-08 Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012203892859U CN202734884U (en) 2012-08-08 2012-08-08 Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser

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CN202734884U true CN202734884U (en) 2013-02-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196945A (en) * 2013-03-18 2013-07-10 哈尔滨工程大学 Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation
CN108375402A (en) * 2018-01-19 2018-08-07 西安理工大学 Power station hydraulic turbine inflow-rate of water turbine on-line measurement system based on split-stream sampling method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196945A (en) * 2013-03-18 2013-07-10 哈尔滨工程大学 Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation
CN103196945B (en) * 2013-03-18 2014-12-17 哈尔滨工程大学 Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation
CN108375402A (en) * 2018-01-19 2018-08-07 西安理工大学 Power station hydraulic turbine inflow-rate of water turbine on-line measurement system based on split-stream sampling method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 110015 Liaoning city of Shenyang Province Hunnan Industrial Zone Century Road No. 49

Patentee after: ZHONGKEKELIN (LIAONING) ENERGY ENVIRONMENTAL PROTECTION CO.,LTD.

Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group

Patentee after: DATANG INTERNATIONAL POWER GENERATION Co.,Ltd.

Address before: 110015 Liaoning city of Shenyang Province Hunnan Industrial Zone Century Road No. 49

Patentee before: Liaoning Clean Environmental Protection Engineering Co.,Ltd.

Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group

Patentee before: DATANG INTERNATIONAL POWER GENERATION Co.,Ltd.

CP01 Change in the name or title of a patent holder

Address after: 110015 Liaoning city of Shenyang Province Hunnan Industrial Zone Century Road No. 49

Co-patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group

Patentee after: ZHONGKE KELIN ENERGY SAVING AND ENVIRONMENTAL TECHNOLOGY CO.,LTD.

Co-patentee after: DATANG INTERNATIONAL POWER GENERATION Co.,Ltd.

Address before: 110015 Liaoning city of Shenyang Province Hunnan Industrial Zone Century Road No. 49

Co-patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group

Patentee before: ZHONGKEKELIN (LIAONING) ENERGY ENVIRONMENTAL PROTECTION CO.,LTD.

Co-patentee before: DATANG INTERNATIONAL POWER GENERATION Co.,Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20130213

CX01 Expiry of patent term