CN204612858U - Absorption tower demisting device differential pressure measuring installation - Google Patents
Absorption tower demisting device differential pressure measuring installation Download PDFInfo
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- CN204612858U CN204612858U CN201520350752.0U CN201520350752U CN204612858U CN 204612858 U CN204612858 U CN 204612858U CN 201520350752 U CN201520350752 U CN 201520350752U CN 204612858 U CN204612858 U CN 204612858U
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- absorption tower
- stopple coupon
- pressure
- differential pressure
- pressure unit
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Abstract
The utility model provides absorption tower demisting device differential pressure measuring installation, comprise at least two stopple coupons be connected with absorption tower wall, described stopple coupon one end is connected with inside, absorption tower, described absorption tower demisting device differential pressure measuring installation also comprises pressure unit and DCS control system, pressure unit is at least two, pressure unit and stopple coupon one_to_one corresponding are installed on the other end of stopple coupon, and the signal output part of described pressure unit is electrically connected with DCS control system respectively.The utility model eliminates the susceptible to plugging pressure guiding pipe of long range curvature, pressure unit is adopted directly to measure the pressure of sampling spot, then adopted by pressure value electrical connection conduction to DCS control system, two differential pressures measured between sampling spot are calculated by DCS control system, reduce the workload of maintainer and daily servicing personnel, the reliability of raising equipment, and serviceable life.
Description
Technical field
The utility model belongs to auxiliary device field, power plant absorption tower, especially relates to a kind of mist eliminator differential pressure measuring installation.
Background technology
Mist eliminator is the inner critical elements of desulfuration absorbing tower, and it is mainly for separating of the drop of gas entrained with in power plant absorption tower, to ensure mass-transfer efficiency.Can the performance of mist eliminator directly have influence on wet FGD device and reliably run continuously.Mist eliminator normally runs differential pressure within 100Pa, and regulation mustn't more than 200Pa.
The metering system that prior art desulfuration absorbing tower mist eliminator pressure is surveyed to be connected with differential pressure transmitter by pressure guiding pipe directly to calculate desulfuration absorbing tower mist eliminator differential pressure.Although installed automatic blowout device at sampling test point place, the long distance of impulse pipeline and the bending blocking still often causing pipeline of portion.Particularly when air temperature variations is larger, in pipe, also there is condensate water.
Patent CN203148619U discloses a kind of mist separator of desulfurization differential pressure measuring installation, technical scheme mainly installs the flash vessel that footpath at a gulp elbow is formed in front end, absorption tower, flash vessel is communicated with line measuring tube, and make containing limestone serous slurries obtain gas sampled earth pressure release and fall, upper punch is weak.The slurries discharged in the gas after pressure lean on the gravity of self to return in absorption tower, and gas moves on then continuing because density is very light, reaches the effect of gas-liquid separation.Because no longer measuring tube can not be blocked containing slurries, ensure that measuring tube is through-flow suitable, because impurities in gas significantly reduces, accuracy of measurement is significantly improved again.This device still exists long apart from small-bore impulse pipeline, and when air temperature variations is larger, the condensate water in impulse pipeline still can cause the blocking of pipeline, makes measurement result inaccurate.
Utility model content
The purpose of this utility model is the problem that when thoroughly solving the differential pressure measurement of absorption tower demisting device, pipeline easily blocks up, and directly pressure unit is mounted to point position, measures single point pressure, then calculates mist eliminator differential pressure value in dcs.
Absorption tower demisting device differential pressure measuring installation, comprise at least two stopple coupons be connected with absorption tower wall, described stopple coupon one end is connected with inside, absorption tower, described absorption tower demisting device differential pressure measuring installation also comprises pressure unit and DCS control system, pressure unit is at least two, pressure unit and stopple coupon one_to_one corresponding are installed on the other end of stopple coupon, and the signal output part of described pressure unit is electrically connected with DCS control system respectively.
The utility model eliminates the susceptible to plugging pressure guiding pipe of long range curvature, pressure unit is adopted directly to measure the pressure of sampling spot, then adopted by pressure value electrical connection conduction to DCS control system, calculate two differential pressures measured between sampling spot by DCS control system.
Pressure unit (pressure transmitter) refers to export the pressure transducer into standard signal, is a kind ofly to accept the instrument that pressure variations is converted to standard output signals in proportion.The physical pressure parameter such as gas, liquid that load cell can be experienced by it is transformed into the electric signal (as 4-20mADC etc.) of standard, carries out measuring, indicating and procedure regulation to supply the secondary instruments such as indicator alarm, registering instrument, regulator.
Described pressure unit is bellows-type pressure unit.
Bellows-type pressure transmitter measurement result is accurate, is applicable to measure condition of different temperatures downforce, is widely used, good stability.
Described bellows-type pressure unit is arranged on the other end of stopple coupon by Flange joint.
Adopt flange connection stable and convenient disassembly, be convenient to maintenance maintenance.
The diameter of described stopple coupon is 8-10cm.
Adopt the stopple coupon of larger caliber that stopple coupon can be avoided to block.Meanwhile, in order to coordinate the installation of pressure unit, the diameter of the utility model stopple coupon is 8-10cm.
One end of described stopple coupon is welded on the wall of absorption tower.
Described stopple coupon is inclined upwardly setting, and the angle between described stopple coupon and absorption tower wall is 60-80 °.
Stopple coupon is inclined upwardly setting, and the water of convenient condensation in stopple coupon refluxes downwards and enters into absorption tower.Condensate water is avoided to assemble in stopple coupon, blocking stopple coupon.
Described absorption tower demisting device differential pressure measuring installation comprises four stopple coupons, one end of stopple coupon is separately positioned on the absorption tower wall on the absorption tower wall on the absorption tower wall on the absorption tower wall of adsorption tower smoke import, before mist eliminator, after mist eliminator A layer, after mist eliminator B layer, the other end of each stopple coupon is separately installed with a pressure unit, and the signal output part of four pressure units is electrically connected with DCS control system respectively.
Pressure after pressure and mist eliminator B layer to be measured after pressure before adsorption tower smoke intake pressure, mist eliminator, mist eliminator A layer respectively by four stopple coupons and pressure unit, pressure unit respectively by pressure signal transmission to DCS control system, the pressure value that DCS control system just can provide according to pressure unit calculates differential pressure, mist eliminator differential pressure A, mist eliminator differential pressure B before gas approach and mist eliminator.
The signal output part of described pressure unit is electrically connected with DCS control system by cable.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, solve the many unfavorable and impact on measurement result that pressure guiding pipe brings mist eliminator differential pressure measurement; Reduce the workload of maintainer and daily servicing personnel; The reliability of raising equipment, and serviceable life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure:
1, absorption tower wall 2, stopple coupon 3, pressure unit 4, DCS control system 5, flange 6, cable
Embodiment
As shown in Figure 1, the utility model absorption tower demisting device differential pressure measuring installation, comprise at least two stopple coupons 2, at least two pressure units 3 and DCS control system 4, stopple coupon 2 one end is connected with absorption tower wall 1, stopple coupon 2 is connected with absorption tower, the other end of stopple coupon 2 is provided with pressure unit 3, and the signal output part of pressure unit 3 is electrically connected with DCS control system 4.
Pressure unit 3 can be bellows-type pressure unit.Bellows-type pressure unit is mounted on the other end of stopple coupon 2 by flange 5.Stopple coupon 2 is the straight tube of diameter 8-10cm, and be inclined upwardly setting, and the angle between absorption tower wall 1 is 60-80 °.One end of stopple coupon 2 is welded on absorption tower wall 1.
The utility model absorption tower demisting device differential pressure measuring installation can be provided with four stopple coupons 2, one end of stopple coupon 2 is separately positioned on the absorption tower wall 1 on the absorption tower wall 1 on the absorption tower wall 1 on the absorption tower wall 1 of adsorption tower smoke import, before mist eliminator, after mist eliminator A layer, after mist eliminator B layer, the signal output part that the other end of each stopple coupon 2 is separately installed with a pressure unit 3, four pressure units 3 is electrically connected by cable 6 with DCS control system 4 respectively.Such DCS control system 4 just can calculate differential pressure, mist eliminator differential pressure A, mist eliminator differential pressure B before mist eliminator.
The course of work of this example: the pressure of sampling spot 2 measured by pressure unit 3, and pressure signal is passed to DCS control system 4, DCS control system 4 by cable 6 calculate two pressure differentials measured between sampling spot 2, obtain differential pressure numerical value.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (8)
1. absorption tower demisting device differential pressure measuring installation, comprise at least two stopple coupons be connected with absorption tower wall, described stopple coupon one end is connected with inside, absorption tower, it is characterized in that: described absorption tower demisting device differential pressure measuring installation also comprises pressure unit and DCS control system, pressure unit is at least two, pressure unit and stopple coupon one_to_one corresponding are installed on the other end of stopple coupon, and the signal output part of described pressure unit is electrically connected with DCS control system respectively.
2. absorption tower demisting device differential pressure measuring installation according to claim 1, is characterized in that: described pressure unit is bellows-type pressure unit.
3. absorption tower demisting device differential pressure measuring installation according to claim 2, is characterized in that: described bellows-type pressure unit is arranged on the other end of stopple coupon by Flange joint.
4. the absorption tower demisting device differential pressure measuring installation according to claim 1-3 any one, is characterized in that: the diameter of described stopple coupon is 8-10cm.
5. absorption tower demisting device differential pressure measuring installation according to claim 4, is characterized in that: one end of described stopple coupon is welded on the wall of absorption tower.
6. absorption tower demisting device differential pressure measuring installation according to claim 5, is characterized in that: described stopple coupon is inclined upwardly setting, and the angle between described stopple coupon and absorption tower wall is 60-80 °.
7. absorption tower demisting device differential pressure measuring installation according to claim 1, it is characterized in that: described absorption tower demisting device differential pressure measuring installation comprises four stopple coupons, one end of stopple coupon is separately positioned on the absorption tower wall on the absorption tower wall on the absorption tower wall on the absorption tower wall of adsorption tower smoke import, before mist eliminator, after mist eliminator A layer, after mist eliminator B layer, the other end of each stopple coupon is separately installed with a pressure unit, and the signal output part of four pressure units is electrically connected with DCS control system respectively.
8. absorption tower demisting device differential pressure measuring installation according to claim 1, is characterized in that: the signal output part of described pressure unit is electrically connected with DCS control system by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350752.0U CN204612858U (en) | 2015-05-27 | 2015-05-27 | Absorption tower demisting device differential pressure measuring installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520350752.0U CN204612858U (en) | 2015-05-27 | 2015-05-27 | Absorption tower demisting device differential pressure measuring installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204612858U true CN204612858U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520350752.0U Expired - Fee Related CN204612858U (en) | 2015-05-27 | 2015-05-27 | Absorption tower demisting device differential pressure measuring installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204612858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716783A (en) * | 2016-04-29 | 2016-06-29 | 大唐环境产业集团股份有限公司 | Anti-blocking differential pressure measurement device used for spraying layer |
| CN106017782A (en) * | 2016-06-24 | 2016-10-12 | 国投钦州发电有限公司 | Wet flue gas desulphurization mist eliminator differential pressure measurer for thermal power generation factory |
-
2015
- 2015-05-27 CN CN201520350752.0U patent/CN204612858U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716783A (en) * | 2016-04-29 | 2016-06-29 | 大唐环境产业集团股份有限公司 | Anti-blocking differential pressure measurement device used for spraying layer |
| CN106017782A (en) * | 2016-06-24 | 2016-10-12 | 国投钦州发电有限公司 | Wet flue gas desulphurization mist eliminator differential pressure measurer for thermal power generation factory |
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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: 20150902 Termination date: 20210527 |