CN201795835U - Liquid level detection anti-dew deposition device for cooling water tank - Google Patents
Liquid level detection anti-dew deposition device for cooling water tank Download PDFInfo
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- CN201795835U CN201795835U CN2010205244512U CN201020524451U CN201795835U CN 201795835 U CN201795835 U CN 201795835U CN 2010205244512 U CN2010205244512 U CN 2010205244512U CN 201020524451 U CN201020524451 U CN 201020524451U CN 201795835 U CN201795835 U CN 201795835U
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- level meter
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Abstract
The utility model discloses a liquid level detection anti-dew deposition device for a cooling water tank, belongs to anti-dew deposition equipment, and solves the problem that a probe of a conventional liquid leveler is easy to form dew deposition to affect normal liquid level detection. In the device, an anti-dew deposition device is arranged on a fixed flange on which a liquid leveler is arranged; at least three purging holes are uniformly reserved on the fixed flange; one end of each purging hole is led below the space where the probe of the liquid leveler is positioned; the other end is positioned in the fixed flange, is vertically connected with an internal-passage air tube and is extended to the edge of the fixed flange; a connection port has pipe threads and is connected with a joint of an external air source access hole; and the joint of the air source access hole is connected with a purging air source for accessing the purging air source. When the liquid leveler works, compressed air is purged below the probe of the liquid leveler through the purging holes continuously, so that an air curtain is formed around and below the probe of the liquid leveler for isolating water vapor from spreading to the liquid leveler and eliminating cooling dew of the water vapor on the probe of the liquid leveler; therefore, the probe of the liquid leveler is kept in a dry state for maintaining the normal detection of the probe.
Description
Technical field
The utility model relates to a kind of anti-long-pending device that reveals, and refer in particular to a kind of being used to have volatile liquid, and fluid temperature is higher than the anti-long-pending device that reveals of Level Detection that environment temperature easily causes the evaporative condenser dewfall.
Background technology
Existing liquid level detection device generally adopts radar, ultrasonic level meter, it is to utilize liquid level meter probe to send pulse frequency electromagnetic waves or ultrasound wave to the pond liquid level, after the reflection of pond liquid level, receive by liquid level meter probe, by detect the emission of liquid level meter probe, reclaim electromagnetic wave, hyperacoustic mistiming measures the distance of pond liquid level between popping one's head in the liquid level meter, measuring the height of actual pond liquid level according to being set in advance in range parameter in the liquid level meter again, is a kind of and the non-contacting pick-up unit of measured medium.Because at present its detection technique has developed into digital intellectualization, detected parameters compensation, make that the stability of detection and Operation and Maintenance conveniency all are greatly improved, failure rate is lower and be widely used.
Said apparatus finds that in actual use the abnormal occurrence that liquid level indication is fluctuated widely very easily takes place the liquid level meter under certain conditions, can occur full pond of liquid level, liquid level meter indication pond and deadlock situation that can't self-recovery when the fluctuation abnormal occurrence is serious.Bring great inconvenience to equipment operation,,, under the untimely situation of moisturizing, the pond will take place and be evacuated, to the phenomenon that user's water supply stops and water pump damages because of idle running stall because of the pushing quantity of pump group is bigger if this abnormal occurrence can not get timely processing.In the blank of iron and steel enterprise is handled in a single day chilled(cooling) water supply (CWS) taking place and interrupt, will cause production to continue, and the serious consequence that this phenomenon will cause the impaired breaking-ups of equipment such as milling train, rod road occurs when blank is in as-rolled condition.
The reason that above-mentioned phenomenon occurs is owing on the liquid level meter probe water vapor dewfall phenomenon is arranged.In the indication of liquid level more after a little while of liquid level meter probe dewfall pulsatile change unordered, that differ in size is arranged, and it is more serious to work as probe water vapor dewfall phenomenon, when manifesting the dropping liquid state, high liquid level deadlock phenomenon appears in the liquid level meter.The long-pending dewiness attitude of existing liquid level meter probe as shown in Figure 1.Among Fig. 1, a pre-buried waveguide 14 that extends to the pond on the platform at top, pond 15, mounting flange 13 of welded top at waveguide 14, liquid level meter 11 is fixed on the mounting flange 12, mounting flange 12 is connected on the mounting flange 13 by bolt, liquid level meter 11 is by its liquid level meter probe 111 emissions and reclaim electromagnetic wave, hyperacoustic information detects pond liquid level, water vapor 17 evaporative condenser dewfall when the pond temperature is higher than environment temperature, cause liquid level meter probe 111 to be stained with the dewfall globule 16, influence the Level Detection of liquid level meter 11.
The utility model content
The purpose of this utility model is in order to overcome the defective that prior art exists, provide a kind of elimination liquid level meter probe the long-pending phenomenon of revealing, guarantee the accuracy of liquid level meter, improve the anti-long-pending device that reveals of cooling pond Level Detection of fluid level control system control of quality the pond level detection.
The purpose of this utility model is achieved through the following technical solutions:
The anti-long-pending device that reveals of a kind of cooling pond Level Detection, be used for the detection of radar and ultrasonic level meter to the pond liquid level, bury a waveguide that extends to the cooling pond on the top platform of described cooling pond underground, mounting flange of the welded top of waveguide, described liquid level meter is installed on the mounting flange by the screw thread on its liquid level meter probe, mounting flange is connected on the described mounting flange by bolt, liquid level meter probe stretches in the waveguide, it is characterized in that, the anti-long-pending device that reveals is set on the described mounting flange, and its structure is as follows:
At mounting flange even at least 3 purge holes of setting on the position between the interior circle of the cylindrical of described liquid level meter probe and waveguide, each purge hole is parallel with liquid level meter probe, and one end lead to the liquid level meter residing space of popping one's head in, the other end is inner with described purge hole vertical connection one Gen Neidao tracheae and extend to the outer rim of mounting flange at mounting flange;
Interior road tracheae and the connected entrance of mounting flange outer rim are arranged to pipe thread and are connected with a end that the source of the gas of outside inserts hole connector, and source of the gas inserts the outer purging tracheae that the other end connection of hole connector communicates with source purge gas;
The described outer gas channels that tracheae, source of the gas access hole connector, interior road tracheae and purge hole form source purge gas that purges.
Described source purge gas adopts the identical pressurized air of dielectric property with described liquid level meter environmental gas of living in.
The internal diameter of the gas channels of described source purge gas adopts the structure that enlarges step by step from outside to inside.
In the gas channels of described source purge gas, described outer sweep gas bore is φ 3mm, and described interior road TD is φ 5mm, and the diameter of described purge hole is φ 10mm.
Described waveguide diameter is 120mm, and described mounting flange external diameter is 210mm, and described liquid level meter probe diameter is φ 55mm, and it is on the circular arc line of R40mm with the radius on every side that described several purge hole quadratures are evenly distributed on described liquid level meter probe.
The thickness of described mounting flange is 20mm.
The pipe thread of the connected entrance setting of road tracheae and mounting flange outer rim is G1/4 made in Great Britain in described, and " pipe thread, it is standard G1/4 " X-over that described source of the gas inserts hole connector.
The beneficial effects of the utility model:
Because the utility model is provided with the purge hole that is communicated with external source of the gas and pops one's head in towards the liquid level meter on the mounting flange of fixing liquid level meter, during the work of liquid level meter, purge hole constantly purges pressurized air to liquid level meter probe below, make around the liquid level meter probe and below formation gas curtain, isolated water steam spreads to liquid level meter probe, eliminate it and on liquid level meter probe, cool off dewfall, in addition because external source of the gas is a pressurized air, the pop one's head in gas medium characteristic of residing testing environment of its dielectric property and liquid level meter is identical, therefore for radar, ultrasonic level meter, the electromagnetic wave that it sends, ultrasonic testing signals can not be subjected to the interference of unusual medium field, both kept the probe of liquid level meter to be in desirable drying regime, and can guarantee the accuracy of liquid level meter again the pond level detection.The utility model is particularly useful for having volatile liquid, and fluid temperature is higher than in the Level Detection meter that environment temperature easily causes the evaporative condenser dewfall.
For further specifying above-mentioned purpose of the present utility model, feature and effect, the utility model is elaborated below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the synoptic diagram that existing liquid level meter mounting structure and probe thereof produce dew pearl attitude;
Fig. 2 is the structural representation of liquid level meter mounting flange in the utility model;
Fig. 3 is the anti-long-pending apparatus structure synoptic diagram that reveals of liquid level meter mounting structure of the present utility model and Level Detection;
Fig. 4 is the anti-view of amassing when revealing device purging pressurized air of Level Detection of the present utility model.
Embodiment
Accompanying drawing below in conjunction with embodiment is elaborated to embodiment of the present utility model.
Referring to Fig. 2-3, cooling pond of the present utility model Level Detection is anti-long-pending to be revealed device and is used for the detection to the pond liquid level of radar and ultrasonic level meter, as shown in the figure, burying a diameter that extends to the cooling pond on the platform at the top 25 of described cooling pond underground is the waveguide 24 of 120mm, mounting flange 23 of the welded top of waveguide 24, liquid level meter 21 is that mounting flange 22 is connected on the mounting flange 23 by bolt by on the mounting flange 22 that to be installed in an external diameter be 210mm of the screw thread on its liquid level meter probe 211.Liquid level meter 211 diameters of popping one's head in are about φ 55mm, and it stretches in the waveguide 24.After installing and fixing, around the liquid level meter probe 211 an external diameter 120mm, the torus space of internal diameter 55mm are arranged.Owing in the middle of mounting flange 22 and the mounting flange 23 the sealing gasket sealing is arranged, so liquid level meter probe 211 is to be in a lower open and to be airtight space with top on every side.Liquid level meter 21 is by its liquid level meter probe 211 emissions and reclaim electromagnetic wave, hyperacoustic information detects described cooling pond liquid level, and the anti-long-pending device that reveals is set on the mounting flange 22 of the present utility model, and its structure is as follows:
At mounting flange 22 even at least 3 (present embodiment is 4) purge holes 35 of setting on the position between the interior circle of the cylindrical of liquid level meter probe 211 and waveguide 24, it is 211 parallel that each purge hole 35 and liquid level meter are popped one's head in, and one end lead to the liquid level meter 211 residing spaces of popping one's head in, the other end is at mounting flange 22 inside and described purge hole 35 vertical connections, one Gen Neidao tracheae 34 and extend to mounting flange 22 outer rims, interior road tracheae 34 and the connected entrance 33 of mounting flange 22 outer rims are arranged to pipe thread and are connected with a end that the source of the gas of outside inserts hole connector 32, and source of the gas inserts the outer purging tracheae 31 that the other end connection of hole connector 32 communicates with source purge gas (not shown).
Referring to Fig. 4, when said structure makes 21 work of liquid level meter, source purge gas forms gas curtain 26 vertically downward and in waveguide 24 by purging tracheae 31, source of the gas access hole connector 32, interior road tracheae 34 and purge hole 35 outward below reaching around the liquid level meter probe 211, the water vapour 27 of isolating the pond spreads to liquid level meter probe 211, gas curtain 26 has played the effect of isolated water steam 27, eliminates the phenomenon of water vapour 27 cooling dewfall on liquid level meter probe 211.
Because radar, ultrasonic level meter are to utilize its pulse electromagnetic wave that sends, ultrasound wave to produce echo at the pond liquid level to the detection of pond liquid level, carry out distance detecting according to the mistiming of sending and replying of pulse signal and measure liquid level, if when between liquid level meter probe and pond liquid level, other objects being arranged, can produce interference effect to the detection of liquid level meter.Therefore, source purge gas of the present utility model adopts the identical pressurized air of dielectric property with liquid level meter environmental gas of living in.
Because water vapor pressure is compared almost equal with ambient pressure, therefore, the compressed air pressure that is used to purge only needs a little more than atmospheric pressure, and with the gas flow purging of a stable flow velocity, can keep in the waveguide and do not invaded by water vapor, generally, the compressed air pressure of purging is set in 50kPa-100kPa according to the external air source pipeline apart from length.
The thickness of said fixing flange 22 is 20mm.Because ambient humidity is bigger,, adopt stainless steel in order to prolong its serviceable life.
The described outer gas channels that tracheae 31, source of the gas access hole connector 32, interior road tracheae 34 and purge hole 35 form source purge gas that purges.In order to make 22 pairs of purge gas of mounting flange have step-down, decelerating effect, the gas channels internal diameter of source purge gas adopts the structure that enlarges step by step from outside to inside.It is the copper tubes that adopt 6mm * 1.5mm that present embodiment purges tracheae 31 at home and abroad, and its internal diameter is φ 3mm, and interior road tracheae 34 diameters are φ 5mm.The diameter of purge hole 35 is φ 10mm.It is on the circular arc line of R40mm with the radius on every side that several purge hole 35 quadratures are evenly distributed on liquid level meter probe 211.
The compressed air piping of outside network is by 1/2, and " galvanized conduit or DN15 weldless steel tube are drawn; the gas source pipe by reduction valve decompression back output is 6mm * 1.5mm copper tube, are shunted to four road sources of the gas through twice threeway and insert purging tracheae 31 outside each respectively by the cutting ferrule joint.
Mounting flange 22 seals with sealing gasket must be arranged being connected of mounting flange 23, guarantees that extraneous air is not inhaled into.Same liquid level meter probe 211 with also require being connected of mounting flange 22 to seal, the rubber sealing ring that can utilize liquid level meter 21 to carry seals.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (7)
1. anti-the amassing of cooling pond Level Detection revealed device, be used for the detection of radar and ultrasonic level meter to the pond liquid level, bury a waveguide that extends to the cooling pond on the top platform of described cooling pond underground, mounting flange of the welded top of waveguide, described liquid level meter is installed on the mounting flange by the screw thread on its liquid level meter probe, mounting flange is connected on the described mounting flange by bolt, liquid level meter probe stretches in the waveguide, it is characterized in that, the anti-long-pending device that reveals is set on the described mounting flange, and its structure is as follows:
At mounting flange even at least 3 purge holes of setting on the position between the interior circle of the cylindrical of described liquid level meter probe and waveguide, each purge hole is parallel with liquid level meter probe, and one end lead to the liquid level meter residing space of popping one's head in, the other end is inner with described purge hole vertical connection one Gen Neidao tracheae and extend to the outer rim of mounting flange at mounting flange;
Interior road tracheae and the connected entrance of mounting flange outer rim are arranged to pipe thread and are connected with a end that the source of the gas of outside inserts hole connector, and source of the gas inserts the outer purging tracheae that the other end connection of hole connector communicates with source purge gas;
The described outer gas channels that tracheae, source of the gas access hole connector, interior road tracheae and purge hole form source purge gas that purges.
2. the Level Detection anti-long-pending device that reveals in cooling pond as claimed in claim 1 is characterized in that:
Described source purge gas adopts the identical pressurized air of dielectric property with described liquid level meter environmental gas of living in.
3. the Level Detection anti-long-pending device that reveals in cooling pond as claimed in claim 1 is characterized in that:
The internal diameter of the gas channels of described source purge gas adopts the structure that enlarges step by step from outside to inside.
4. as claim 1 or the anti-long-pending device that reveals of 3 described cooling pond Level Detection, it is characterized in that:
In the gas channels of described source purge gas, described outer sweep gas bore is φ 3mm, and described interior road TD is φ 5mm, and the diameter of described purge hole is φ 10mm.
5. the Level Detection anti-long-pending device that reveals in cooling pond as claimed in claim 1 is characterized in that:
Described waveguide diameter is 120mm, and described mounting flange external diameter is 210mm, and described liquid level meter probe diameter is φ 55mm, and it is on the circular arc line of R40mm with the radius on every side that described at least 3 purge hole quadratures are evenly distributed on described liquid level meter probe.
6. the Level Detection anti-long-pending device that reveals in cooling pond as claimed in claim 1 is characterized in that:
The thickness of described mounting flange is 20mm.
7. the Level Detection anti-long-pending device that reveals in cooling pond as claimed in claim 1 is characterized in that:
The pipe thread of the connected entrance setting of road tracheae and mounting flange outer rim is G1/4 made in Great Britain in described, and " pipe thread, it is standard G1/4 " X-over that described source of the gas inserts hole connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205244512U CN201795835U (en) | 2010-09-10 | 2010-09-10 | Liquid level detection anti-dew deposition device for cooling water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205244512U CN201795835U (en) | 2010-09-10 | 2010-09-10 | Liquid level detection anti-dew deposition device for cooling water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795835U true CN201795835U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205244512U Expired - Fee Related CN201795835U (en) | 2010-09-10 | 2010-09-10 | Liquid level detection anti-dew deposition device for cooling water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795835U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662197A (en) * | 2012-05-09 | 2012-09-12 | 河北省电力研究院 | Method for preventing water attack by detecting condensation water in high temperature steam pipeline |
| CN102853252A (en) * | 2012-08-31 | 2013-01-02 | 成都爱德工程有限公司 | Method of replacing steel cylinder for high-purity safe special gas |
| CN104048288A (en) * | 2014-06-19 | 2014-09-17 | 牛永杰 | Boiler with liquid level monitoring function |
| CN104048289A (en) * | 2014-06-19 | 2014-09-17 | 牛永杰 | Boiler with ultrasonic level detector |
| CN110068703A (en) * | 2019-04-26 | 2019-07-30 | 重庆盛厦果时科技有限公司 | Multifunctional pipe drains detection device |
| CN110068291A (en) * | 2019-04-26 | 2019-07-30 | 重庆盛厦果时科技有限公司 | The pipe drainage detection device of fast demountable |
| CN111189513A (en) * | 2020-01-09 | 2020-05-22 | 泰华智慧产业集团股份有限公司 | Ultrasonic liquid level measurement method and device and ultrasonic liquid level meter |
| DE102018221682A1 (en) * | 2018-12-13 | 2020-06-18 | Vega Grieshaber Kg | Measuring arrangement for determining a level |
| CN113758540A (en) * | 2020-06-03 | 2021-12-07 | 中国石油天然气股份有限公司 | Isolation device and liquid storage tank |
-
2010
- 2010-09-10 CN CN2010205244512U patent/CN201795835U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662197A (en) * | 2012-05-09 | 2012-09-12 | 河北省电力研究院 | Method for preventing water attack by detecting condensation water in high temperature steam pipeline |
| CN102662197B (en) * | 2012-05-09 | 2014-05-28 | 河北省电力公司电力科学研究院 | Method for preventing water attack by detecting condensation water in high temperature steam pipeline |
| CN102853252A (en) * | 2012-08-31 | 2013-01-02 | 成都爱德工程有限公司 | Method of replacing steel cylinder for high-purity safe special gas |
| CN104048288A (en) * | 2014-06-19 | 2014-09-17 | 牛永杰 | Boiler with liquid level monitoring function |
| CN104048289A (en) * | 2014-06-19 | 2014-09-17 | 牛永杰 | Boiler with ultrasonic level detector |
| DE102018221682A1 (en) * | 2018-12-13 | 2020-06-18 | Vega Grieshaber Kg | Measuring arrangement for determining a level |
| CN110068703A (en) * | 2019-04-26 | 2019-07-30 | 重庆盛厦果时科技有限公司 | Multifunctional pipe drains detection device |
| CN110068291A (en) * | 2019-04-26 | 2019-07-30 | 重庆盛厦果时科技有限公司 | The pipe drainage detection device of fast demountable |
| CN110068291B (en) * | 2019-04-26 | 2020-10-30 | 浙江金果知识产权有限公司 | But quick assembly disassembly's pipeline drainage detection device |
| CN110068703B (en) * | 2019-04-26 | 2020-11-24 | 江苏越捷智能停车系统有限公司 | Multifunctional pipeline drainage detection device |
| CN111189513A (en) * | 2020-01-09 | 2020-05-22 | 泰华智慧产业集团股份有限公司 | Ultrasonic liquid level measurement method and device and ultrasonic liquid level meter |
| CN113758540A (en) * | 2020-06-03 | 2021-12-07 | 中国石油天然气股份有限公司 | Isolation device and liquid storage tank |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20160910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |