CN206523326U - A kind of microsampling analyzed for liquid on-line and thermostat - Google Patents
A kind of microsampling analyzed for liquid on-line and thermostat Download PDFInfo
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- CN206523326U CN206523326U CN201720193024.2U CN201720193024U CN206523326U CN 206523326 U CN206523326 U CN 206523326U CN 201720193024 U CN201720193024 U CN 201720193024U CN 206523326 U CN206523326 U CN 206523326U
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- thermostat
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Abstract
A kind of microsampling analyzed for liquid on-line and thermostat, including explosion-proof measuring pump, T-shaped filter, magnetic valve I, magnetic valve II, temperature control equipment and embedded system；The embedded system is connected with explosion-proof measuring pump, magnetic valve I, magnetic valve II respectively, and explosion-proof measuring pump is connected with magnetic valve I, for determining sample introduction flow velocity and measurement interval, so as to control sample to flow into and discharge；The magnetic valve I is connected further through the T-shaped filter for the impurity in filtered sample with temperature control equipment, and the temperature control equipment is connected with magnetic valve II again.The utility model provides a kind of microsampling analyzed for liquid on-line and thermostat, is stabilized sampling, and pending to sample progress rectification, constant temperature, improves the accuracy of testing result.
Description
Technical field
The utility model is related to liquid on-line analysis technical field, specifically a kind of micro adopting for liquid on-line analysis
Sample and thermostat.
Background technology
The need for automatic detection and automation filling, liquid on-line detection technique is also widely applied.For example,
In additives for jet fuel adding procedure, the effect of on-line checking is that monitoring additive contains in real time in additive filling process
Amount, additive filling apparatus is fed back to by testing result, controls additive addition.How to sample and can guarantee that the stabilization of sample
Property turn into detection process important step, this will use sampling device.
At present, it is directly directly to be taken from main line or from stainless steel that liquid on-line, which tests and analyzes main sampling mode,
Sample, is directly detected, disadvantage of this is that without processes such as over commutation, constant temperature after sampling.But, many liquid are to be measured
Temperature, impurity content of sample etc. are distinctly claimed, and the sample of direct sample, which differs, surely meets corresponding testing sample specification.
The content of the invention
In order to reach the purpose of on-line checking, and qualified testing sample can be provided, overcome existing technical deficiency, this reality
Sampling is stabilized there is provided a kind of microsampling analyzed for liquid on-line and thermostat and method with new, and it is right
Sample progress rectification, constant temperature are pending, improve the accuracy of testing result.
The utility model is realized by following technical scheme：
A kind of microsampling analyzed for liquid on-line and thermostat, including explosion-proof measuring pump, T-shaped filter, electricity
Magnet valve I, magnetic valve II, temperature control equipment and embedded system；The embedded system respectively with explosion-proof measuring pump, magnetic valve
Ith, magnetic valve II is connected, and explosion-proof measuring pump is connected with magnetic valve I, for determining sample introduction flow velocity and measurement interval, so as to control
Sample is flowed into and discharge；The magnetic valve I is further through the T-shaped filter and temperature control equipment for the impurity in filtered sample
It is connected, the temperature control equipment is connected with magnetic valve II again.
Preferably, heat exchanger, semiconductor refrigerating of the temperature control equipment including housing and in housing are first
Part, temperature sensor and PID temperature controller；The semiconductor refrigerating element side utilizes heat exchanger and sample in capillary
Heat exchange is carried out, sample is heated or cooled；Opposite side is using plane heat pipe radiating increase radiating effect, or by housing and fin
Laminating, regard whole housing as radiator；The PID temperature controller obtains temperature control dress by connecting temperature sensor
Put internal testing sample temperature；The PID temperature controller is connected with semiconductor refrigerating element, and control semiconductor refrigerating element drives
Dynamic connecting and disconnecting of the circuit, so as to be freezed and heating operation, it is ensured that sample constant temperature.
Preferably, the heat exchanger includes being made up of bottom plate and cover plate, and chase, the pipeline are provided with bottom plate
There is stainless steel tubing in groove, and be filled by heat-conducting silicone grease；Have between the bottom plate and cover plate floating cuvette and its
The space of supporting light path, will form the optical path space consistent with heat exchanger temperature.
Preferably, the chase is U-shaped arrangement, is that can make full use of inner space using U-shaped layout benefit, increases
Big heat exchange area, improves exchange efficiency.
Preferably, the floating cuvette is using the quartz flow cuvette gone out in tripping in, and its light path is 5mm, to sample
Product carry out rectification, so as to ensure that additive is well mixed with oil product in sample.
Preferably, SMA905 optical fiber interfaces are provided with described two end face junctions of heat exchanger, pass through optical fiber interface
Optical fiber is introduced, further optical analysis is carried out；Also include a needle-valve, one end of the needle-valve and the output end phase of magnetic valve I
Even, the other end is connected with the input of magnetic valve II, when the sample flow for entering T-shaped filter is too fast, opens needle-valve, plays
Protect the effect of T-shaped filter.
Preferably, the embedded system is single-chip microcomputer, and its model C8051F410, the single-chip microcomputer has at least two
Road RS232 interfaces, can respectively with PID temperature controller and upper machine communication, and can pass through drive circuit control magnetic valve I, electricity
Magnet valve II and explosion-proof metering pump work.
A kind of use microsampling and the on-line analysis of thermostat, the party comprise the following steps：
Step one：Embedded system first opens magnetic valve II, is extracted by explosion-proof measuring pump from pipeline a certain amount of
Testing sample, inject sampling device；
Step 2：Sample passes through magnetic valve I and T-shaped filter, into heat exchanger；
Step 3：Embedded system sends to PID temperature controller and instructed, PID temperature controller control semiconductor refrigerating
Temperature is raised and lowered in element driving circuit, and detected sample completes heat exchange in 10s, reaches temperature constant state, subsequently into
Floating cuvette, ensures to be full of testing sample by the way of in tripping in going out；
Step 4：The instruction of magnetic valve and explosion-proof measuring pump is closed in embedded system issue, it is ensured that sample is filled entirely not
Become rusty steel pipeline, so as to obtain qualified testing sample；
Step 5：After sample detection in sampling device is finished, send and order from host computer to embedded system, it is embedded
System opens magnetic valve I, magnetic valve II, explosion-proof measuring pump successively, waits next sample measurement.
Preferably, the closing sequence in the step 4 is：Magnetic valve II is first closed, magnetic valve I is then turned off, most
After close explosion-proof measuring pump.
Preferably, described embedded system is by single-chip microcomputer, and the single-chip microcomputer has at least two-way RS232 interfaces, can divided
Not with PID temperature controller and upper machine communication, and magnetic valve I, magnetic valve II and explosion-proof metering can be controlled by drive circuit
Pump work；
In embedded systems, the temperature of testing sample needs has been preset, can be from trend PID temperature control during start
Device processed sends instruction, controls sample temperature, sample is kept constant temperature；If necessary, also can on host computer artificial design temperature,
The temperature preset value preserved in modification embedded system；
Temperature control is divided into two steps：
1）Sample temperature is measured by temperature sensor, compared with preset temperature, when differing by more than 40% with preset temperature,
PID temperature controller control semiconductor refrigerating element drive circuit carries out coarse adjustment temperature；
2）When temperature is differed with preset temperature when within 10%, PID temperature controller control semiconductor refrigerating element drives
Circuit carries out fine tuning temperature, until temperature reaches preset value.
The utility model beneficial effect：
The invention provides a kind of microsampling analyzed for liquid on-line and thermostat, stable sampling can be realized,
And it is pending to sample progress rectification, constant temperature, be conducive to eliminating the influence of the accidentalia such as sample temperature fluctuation, obtain default inspection
Sample required by survey condition, improves the accuracy of testing result.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present utility model；
Fig. 2 is temperature control device structure schematic diagram of the present utility model；
101-pipeline, 102-explosion-proof measuring pump, 103-magnetic valve I, 104-T-shaped filter, 105-needle-valve, 106-
Temperature control equipment, 111-magnetic valve II, 112-waste fluid container, 113-embedded system, 201-heat exchanger, 202-
Semiconductor refrigerating element, 203-temperature sensor, 204-PID temperature controller, 205-housing, 206-fin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by specific embodiment.
As shown in Figure 1 and Figure 2, a kind of microsampling analyzed for liquid on-line and thermostat, including explosion-proof measuring pump
102nd, T-shaped filter 104, magnetic valve I 103, magnetic valve II 111, temperature control equipment 106 and embedded system 113；It is embedded
System 113 is connected with explosion-proof measuring pump 102, magnetic valve I 103, magnetic valve II 111 respectively, and the liquid outlet of explosion-proof measuring pump 102
It is connected with the inlet of magnetic valve I 103, for determining sample introduction flow velocity and measurement interval, so as to control sample to flow into and discharge；Electricity
The liquid outlet of magnet valve I 103 is further through the T-shaped filter 104 for the impurity in filtered sample and the phase of temperature control equipment 106
Even, the impurity that T-shaped filter 104 is used in filtered sample, improves accuracy of detection；Temperature control equipment 106 again with magnetic valve II
111 liquid inlet is connected, and the liquid outlet of magnetic valve II 111 is connected with waste fluid container 112 again；Also include a needle-valve 105, the pin
The liquid inlet of valve 105 is connected with the liquid outlet of magnetic valve I 103, the liquid outlet of needle-valve 105 and the liquid inlet phase of magnetic valve II 111
Even.
Temperature control equipment 106 includes housing 205 and heat exchanger 201, semiconductor refrigerating element in housing 205
202nd, temperature sensor 203 and PID temperature controller 204；The side of semiconductor refrigerating element 202 utilizes heat exchanger 201 and hair
Sample carries out heat exchange in tubule, and sample is heated or cooled；Opposite side is using plane heat pipe radiating increase radiating effect, or by shell
Body 205 is fitted with fin 206, regard whole housing 205 as radiator；PID temperature controller 204 is by connecting TEMP
Device 203 obtains the inside testing sample temperature of temperature control equipment 106, is compared with according to preset value, and frequency is 30 times/min；
PID temperature controller 204 is connected with semiconductor refrigerating element 202, controls the drive circuit break-make of semiconductor refrigerating element 202, from
And freezed and heating operation, it is ensured that sample constant temperature.
Heat exchanger 201 includes being made up of bottom plate and cover plate, and chase is provided with bottom plate, and chase is U-shaped arrangement, pipe
There is stainless steel tubing in wire casing, and be filled by heat-conducting silicone grease, it is ensured that high-termal conductivity；There is flowing between bottom plate and cover plate
The space of cuvette and its supporting light path, will form the optical path space consistent with the temperature of heat exchanger 201, in heat exchanger 201
Two end face junctions are provided with SMA905 optical fiber interfaces.Heat exchanger material is aluminium.Floating cuvette is using the stone gone out in tripping in
English floating cuvette, its light path is 5mm, rectification is carried out to sample, so as to ensure that additive is well mixed with oil product in sample.
Embedded system 113 is single-chip microcomputer, and the single-chip microcomputer has at least two-way RS232 interfaces, can respectively with PID temperature control
Device 204 and upper machine communication processed, and magnetic valve I 103, magnetic valve II 111 and explosion-proof measuring pump 102 can be controlled by drive circuit
Work.
In embedded system 113, the temperature of testing sample needs has been preset, can be from trend PID temperature during start
Controller 204 sends instruction, controls sample temperature, sample is kept constant temperature.If necessary, temperature also can be manually set on host computer
The temperature preset value preserved in degree, modification embedded system 113.
Embodiment：
The work schedule of additives for jet fuel on-line checking sample introduction and thermostat is：Embedded system 113 first will
Magnetic valve II 111 is opened, and a certain amount of testing sample, injection sample introduction dress are extracted from pipeline 101 by explosion-proof measuring pump 102
Put；Sample passes through magnetic valve I 103 and T-shaped filter 104, into heat exchanger 201；Embedded system 113 is to PID temperature control
Device 204 processed sends instruction, and temperature is raised and lowered in the control drive circuit of semiconductor refrigerating element 202 of PID temperature controller 204,
Detected sample completes heat exchange in 10s, reaches temperature constant state, subsequently into floating cuvette, using the side gone out in tripping in
Formula ensures to be full of testing sample；Then the instruction for closing magnetic valve and explosion-proof measuring pump 102 is issued by embedded system 113, is closed
Order is closed first to close magnetic valve II 111, magnetic valve I 103 is then turned off, finally closes explosion-proof measuring pump 102, it is ensured that sample
Whole stainless steel tubing is filled, so as to obtain qualified testing sample.
After sample detection in sampling device is finished, order, embedded system are sent from host computer to embedded system 113
113 open magnetic valve I 103, magnetic valve II 111, explosion-proof measuring pump 102 successively, wait next sample measurement.
The utility model can carry out rectification and temperature control in sampling device, reach after sample injection sampling device
State required by sample detection, then carries out constant temperature holding, it is ensured that the constant temperature of sample during overall on-line checking, can carry
The degree of accuracy of high on-line checking, improves detection efficiency.
Above institute art is only a kind of embodiment of the present utility model, it should be noted that coming for those skilled in the art
Say, on the premise of the utility model principle is not departed from, some modification and improvement can also be made, these modification and improvement also should
It is considered as protection domain of the present utility model.
Claims (7)
1. a kind of microsampling analyzed for liquid on-line and thermostat, it is characterised in that：Including explosion-proof measuring pump
（102）, T-shaped filter（104）, magnetic valve I（103）, magnetic valve II（111）, temperature control equipment（106）And embedded system
（113）；
The embedded system（113）Respectively with explosion-proof measuring pump（102）, magnetic valve I（103）, magnetic valve II（111）It is connected,
And explosion-proof measuring pump（102）With magnetic valve I（103）It is connected, for determining sample introduction flow velocity and measurement interval, so as to control sample stream
Enter and discharge；
The magnetic valve I（103）Further through the T-shaped filter for the impurity in filtered sample（104）With temperature control equipment
（106）It is connected, the temperature control equipment（106）Again with magnetic valve II（111）It is connected.
2. a kind of microsampling analyzed for liquid on-line according to claim 1 and thermostat, it is characterised in that：
The temperature control equipment（106）Including housing（205）With positioned at housing（205）Interior heat exchanger（201）, semiconductor refrigerating
Element（202）, temperature sensor（203）With PID temperature controller（204）；
The semiconductor refrigerating element（202）Side utilizes heat exchanger（201）Heat exchange, heating are carried out with sample in capillary
Or cooling sample；Opposite side is using plane heat pipe radiating increase radiating effect, or by housing（205）With fin（206）Laminating,
By whole housing（205）It is used as radiator；
The PID temperature controller（204）By connecting temperature sensor（203）To obtain temperature control equipment（106）It is internal
Testing sample temperature；
The PID temperature controller（204）With semiconductor refrigerating element（202）It is connected, controls semiconductor refrigerating element（202）Drive
Dynamic connecting and disconnecting of the circuit, so as to be freezed and heating operation, it is ensured that sample constant temperature.
3. a kind of microsampling analyzed for liquid on-line according to claim 2 and thermostat, it is characterised in that：
The heat exchanger（201）Including being made up of bottom plate and cover plate, being provided with bottom plate in chase, the chase has stainless steel
Pipeline, and be filled by heat-conducting silicone grease；
There is the space of floating cuvette and its supporting light path between the bottom plate and cover plate, will be formed and heat exchanger（201）
The consistent optical path space of temperature.
4. a kind of microsampling analyzed for liquid on-line according to claim 3 and thermostat, it is characterised in that：
The chase is U-shaped arrangement.
5. a kind of microsampling analyzed for liquid on-line according to claim 3 and thermostat, it is characterised in that：
The floating cuvette is using the quartz flow cuvette gone out in tripping in, and its light path is 5mm, rectification is carried out to sample, so as to protect
Additive is well mixed with oil product in card sample.
6. a kind of microsampling analyzed for liquid on-line and thermostat according to any one of claim 2 to 5, its
It is characterised by：In the heat exchanger（201）Two end face junctions are provided with SMA905 optical fiber interfaces；
Also include a needle-valve（105）, the needle-valve（105）One end and magnetic valve I（103）Output end be connected, the other end with
Magnetic valve II（111）Input be connected.
7. a kind of microsampling analyzed for liquid on-line according to claim 1 and thermostat, it is characterised in that：
The embedded system（113）For single-chip microcomputer, the single-chip microcomputer has at least two-way RS232 interfaces, can respectively with PID temperature control
Device（204）And upper machine communication, and magnetic valve I can be controlled by drive circuit（103）, magnetic valve II（111）With explosion-proof metering
Pump（102）Work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720193024.2U CN206523326U (en) | 2017-03-01 | 2017-03-01 | A kind of microsampling analyzed for liquid on-line and thermostat |
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| CN201720193024.2U CN206523326U (en) | 2017-03-01 | 2017-03-01 | A kind of microsampling analyzed for liquid on-line and thermostat |
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| CN206523326U true CN206523326U (en) | 2017-09-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680037A (en) * | 2017-03-01 | 2017-05-17 | 中国人民解放军空军勤务学院 | Microsampling and constant temperature maintaining device applied to on-line analysis of liquid and method thereof |
-
2017
- 2017-03-01 CN CN201720193024.2U patent/CN206523326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680037A (en) * | 2017-03-01 | 2017-05-17 | 中国人民解放军空军勤务学院 | Microsampling and constant temperature maintaining device applied to on-line analysis of liquid and method thereof |
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