CN202275034U - Concentration detection device - Google Patents
Concentration detection device Download PDFInfo
- Publication number
- CN202275034U CN202275034U CN 201120307495 CN201120307495U CN202275034U CN 202275034 U CN202275034 U CN 202275034U CN 201120307495 CN201120307495 CN 201120307495 CN 201120307495 U CN201120307495 U CN 201120307495U CN 202275034 U CN202275034 U CN 202275034U
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- CN
- China
- Prior art keywords
- proportion
- process pipeline
- current stabilization
- concentration detection
- sample bucket
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- Expired - Fee Related
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Abstract
The utility model discloses a concentration detection device. The concentration detection device comprises a flow stabilizing and sampling barrel, a signal acquisition junction box, a process pipeline inlet, a process pipeline outlet, a proportion detection device, a temperature detection device and a junction box output end, wherein the flow stabilizing and sampling barrel is used for containing a liquid material to be detected, the signal acquisition junction box is mounted at the upper end of the flow stabilizing and sampling barrel, the process pipeline inlet and the process pipeline outlet are respectively connected with the flow stabilizing and sampling barrel, the proportion detection device and the temperature detection device are immerged in the flow stabilizing and sampling barrel and are connected with the signal acquisition junction box, and the junction box output end is used for sending signals to a display and control part. The concentration detection device has the beneficial effects of high detection accuracy, strong interference resistance, good stability, corrosion resistance and capability of online and real-time concentration detection.
Description
Technical field
The utility model relates to a kind of chemical field and uses concentration detection apparatus, particularly relates to the online concentration detection apparatus of a kind of liquid material.
Background technology
In the production run of chemical products, it is production result's preliminary test that On-line Product analysis of components and concentration detect, and is again the main foundation of control production operation.At present, concentration detects in minority large enterprise and adopts import on-line industry chromatograph, and import on-line industry chromatograph cost is very expensive, has increased production cost; Or by the concentration detector of some electricity types of leading, ultrasound wave class, the kind of such concentration detector test product is few, the testing result error is big, has significant limitation in the use.Concentration detects at most chemical enterprises and still adopts chemical examination of off-line type laboratory or stratographic analysis; And in addition artificially draw an analogy heavily, the classic method of estimated concentration; This method usually can mislead production operation; Test product can not detect, cause rejection rate high in real time, and the restriction that serialization is produced is very big.In the chemical products production run of particularly poisonous for those, harmful and high volatility, adopt and artificially draw an analogy heavy classic method and must cause serious environmental to pollute, the infringement operator's is healthy.
Summary of the invention
The utility model technical matters to be solved is, provides a kind of and can detect and control the material specified rate in real time, is widely used in the intelligent online concentration detection apparatus of Production in Chemical Plant process.
The technical scheme that the utility model adopted is: concentration detection apparatus; Comprise; Carry the current stabilization sample bucket of fluid to be measured material, be installed in the signals collecting terminal box of current stabilization sample bucket upper end, process pipeline import that is connected with the current stabilization sample bucket respectively and process pipeline outlet; Immerse current stabilization sample bucket and the proportion pick-up unit that is connected with the signals collecting terminal box and temperature-detecting device and signal sent into the terminal box output terminal of demonstration and control part.
Said proportion pick-up unit comprises the proportion sensor skeleton differential transformer coil central with immersing liquid material fully that is arranged in the current stabilization sample bucket; Insert the proportion float of proportion sensor frame center position pod apertures and with the proportion float induction magnetic core that easy on and off moves in proportion sensor skeleton pod apertures; Said temperature-detecting device comprises the temperature sensor that is sleeved in the temperature sensor glass tube, is installed in the temperature transmitter of terminal box bottom.
Between said process pipeline import and current stabilization sample bucket, first intercepting valve is installed.
The material of said current stabilization sample bucket is engineering plastics, and the material of said proportion sensor skeleton is the high-strength corrosion-resisting material.
Also include second intercepting valve and process pipeline bypass, outlet is connected with process pipeline with the process pipeline import respectively in said process pipeline bypass, and said second intercepting valve is installed in the process pipeline bypass.
The beneficial effect of the utility model is: this measurement device precision is high, antijamming capability is strong, good stability, corrosion-resistant, the real-time detection that can realize online concentration.
Description of drawings
Fig. 1 the utility model concentration detection apparatus synoptic diagram.
Among the figure:
1 signals collecting terminal box, 2 temperature sensor glass tubes
3 temperature transmitters, 4 terminal box leading-out terminals
5 temperature sensors, 6 proportion sensor skeleton set nuts
7 proportion floats, 8 erection bolts
9 current stabilization sample buckets, 10 induction magnetic cores
11 proportion sensor skeletons, 12 differential transformer coils
The outlet of 13 outlet erection bolts, 14 process pipeline
15 import erection bolts, 16 first intercepting valves
17 process pipeline imports, 18 second intercepting valves
19 process pipeline bypasses, 20 ring flanges
21 proportion signal transmssion lines, 22 temperature signal transmission lines.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:
As depicted in figs. 1 and 2; The utility model concentration detection apparatus; Comprising, carry passing through import erection bolt 15 and exporting the current stabilization sample bucket 9 that erection bolt 13 is connected with the ring flange 20 of process pipeline import 17 and process pipeline outlet 14 respectively of fluid to be measured material, is to eliminate the adverse effect of corrosion factor to device; Current stabilization sample bucket 9 adopts engineering plastics to make, and proportion sensor skeleton 11 adopts high-strength corrosion-resisting material such as teflon; Be installed in the signals collecting terminal box 1 of current stabilization sample bucket 9 upper ends; First intercepting valve 16 is installed between said process pipeline import 17 and current stabilization sample bucket 9, and process pipeline bypass 19 is connected with process pipeline outlet 14 with process pipeline import 17 respectively, and said second intercepting valve 18 is installed in the process pipeline bypass 19; When ordinary production, open first intercepting valve 16; Close second intercepting valve 18, make liquid material flow into process pipeline outlet 14, when device is installed or overhaul, close first intercepting valve 16 through current stabilization sample bucket 9; Open second intercepting valve 18 and make liquid material flow into process pipeline outlet 14, guarantee to produce normal operation through process pipeline bypass 19; Signals collecting terminal box 1 is installed in current stabilization sample bucket 9 upper ends through erection bolt 8; The proportion pick-up unit comprises the proportion sensor skeleton 11 differential transformer coil 12 central with immersing liquid material fully that is arranged in the current stabilization sample bucket 9; Be installed in the signals collecting terminal box 1 through set nut 6; And differential transformer coil 12 is immersed in the middle of the liquid material fully, and proportion sensor frame center position is provided with pod apertures, and proportion float 7 is in proportion sensor skeleton pod apertures is inserted in terminal box 1 bottom; Under the buoyancy of liquid material, make proportion float easy on and off move; Induction magnetic core 10 is along with proportion float when easy on and off moves in proportion sensor skeleton pod apertures, and differential transformer coil 12 certainly leads to the sensor current signal of servo-actuated, sees off through proportion signal transmssion line 21; Said temperature-detecting device comprises the temperature sensor 5 that is sleeved in the temperature sensor glass tube 2; Closely probe in the current stabilization sample bucket 9 through terminal box 1 bottom; Its point for measuring temperature is positioned at the middle part of the import and the outlet of liquid material; To guarantee the accuracy of temperature measurement data; Temperature sensor is sent in the temperature transmitter 3 that is installed in terminal box 1 bottom by temperature signal transmission line 22 after the fluid to be measured material temperature is detected in real time, the physical quantity of temperature is changed into the 4-20mA DC electric signal of standard.Proportion signal and temperature signal are all sent into through terminal box leading-out terminal 4 and are shown and control instrument.The control part of this device adopts the single-chip microcomputer embedded system, embeds signal amplification circuit, temperature-compensation circuit, data display circuit, D/A switch circuit, interlock alarm circuit, peripheral apparatus control circuit respectively.Make the on-the-spot signal of being gathered respectively with the digital quantity form, show that the actual concentrations value with liquid material after computing machine is stored, handled the data that receive is shown by the concentration display window at proportion display window and temperature display device mouth.Unusual when the hardware appearance of on-site producing devices and device, perhaps the range of liquid material transfinites, and device starts built-in self-diagnostic function, and hummer sends the fault prompt tone.Demonstration and control instrument below are provided with function key, use these six function keys to accomplish input and modification to data.
Explain with regard to the course of work of the utility model below;
The online concentration detection apparatus that is widely used in chemical industry; When getting into the beginning detected state, opens in device first intercepting valve; Closing second intercepting valve makes in the current stabilization sample bucket of the slow inflow device of fluid to be measured material; When the ultra process pipeline of liquid level of influent material exported, liquid material flowed out along the process pipeline outlet.In the cyclic process of liquid material, after temperature sensor detects the temperature of fluid to be measured in real time, the DC analog quantity electricity stream number that the physical quantity of temperature changes standard into is sent into computing machine through temperature transmitter.Meanwhile magnetic core is moved in along with the coil of proportion float at differential transformer; Because the variation of magnetic core displacement; The sensor current signal that makes the interior generation of differential transformer coil servo-actuated; This signal amplifies and after linearization gives processing, sends into computing machine with the DC analog signals through rectification.Because certain density detected solution; Its proportion changes with variation of temperature; Remake in real time and keep proportion signal and temperature signal to gather in real time during accurate the detection,, pass through the calculating of computing machine then through the temperature-compensated system of instrument; Rate of specific gravity when being converted into standard temperature is measured numerical value like this and just can be compared and calculate.When the actual concentrations value of liquid material and technology concentration value generation deviation, computing machine sends steering order automatically, accomplishes the valve position control to the correlative by-pass valve control, and then the amount of feeding of control correlative, to guarantee the real-time follow-up to liquid material concentration.
Claims (5)
1. concentration detection apparatus; It is characterized in that; Comprise; Carry the current stabilization sample bucket (9) of fluid to be measured material, be installed in the signals collecting terminal box (1) of current stabilization sample bucket (9) upper end, process pipeline import (17) that is connected with current stabilization sample bucket (9) respectively and process pipeline outlet (14); Immerse current stabilization sample bucket (9) and the proportion pick-up unit that is connected with signals collecting terminal box (1) and temperature-detecting device and signal sent into the terminal box output terminal (4) of demonstration and control part.
2. concentration detection apparatus according to claim 1; It is characterized in that; Said proportion pick-up unit comprises proportion sensor skeleton (11) the differential transformer coil (12) central with immersing liquid material fully that is arranged in the current stabilization sample bucket (9); Insert the proportion float (7) of proportion sensor skeleton (11) centre pod apertures and with proportion float (7) the induction magnetic core (10) that easy on and off moves in proportion sensor skeleton (11) pod apertures; Said temperature-detecting device comprises the temperature sensor (5) that is sleeved in the temperature sensor glass tube (2), is installed in the temperature transmitter (3) of terminal box (1) bottom.
3. concentration detection apparatus according to claim 1 is characterized in that, between said process pipeline import (17) and current stabilization sample bucket (9), first intercepting valve (16) is installed.
4. concentration detection apparatus according to claim 1 is characterized in that, the material of said current stabilization sample bucket (9) is engineering plastics, and the material of said proportion sensor skeleton (11) is the high-strength corrosion-resisting material.
5. concentration detection apparatus according to claim 1; It is characterized in that; Also include second intercepting valve (18) and process pipeline bypass (19); Said process pipeline bypass (19) is connected with process pipeline outlet (14) with process pipeline import (17) respectively, and said second intercepting valve (18) is installed in the process pipeline bypass (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120307495 CN202275034U (en) | 2011-08-23 | 2011-08-23 | Concentration detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120307495 CN202275034U (en) | 2011-08-23 | 2011-08-23 | Concentration detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275034U true CN202275034U (en) | 2012-06-13 |
Family
ID=46195383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120307495 Expired - Fee Related CN202275034U (en) | 2011-08-23 | 2011-08-23 | Concentration detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048220A (en) * | 2012-12-05 | 2013-04-17 | 清华大学 | Iodine hydroiodic acid container capable of displaying liquid concentration on line |
| CN103175942A (en) * | 2013-02-19 | 2013-06-26 | 厦门国麟科技有限公司 | Device for automatically monitoring solution concentration |
-
2011
- 2011-08-23 CN CN 201120307495 patent/CN202275034U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048220A (en) * | 2012-12-05 | 2013-04-17 | 清华大学 | Iodine hydroiodic acid container capable of displaying liquid concentration on line |
| CN103175942A (en) * | 2013-02-19 | 2013-06-26 | 厦门国麟科技有限公司 | Device for automatically monitoring solution concentration |
| CN103175942B (en) * | 2013-02-19 | 2016-03-09 | 厦门国麟科技有限公司 | A kind of solution concentration automated watch-keeping facility |
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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 |
Granted publication date: 20120613 Termination date: 20160823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |