CN104062985A - Water level control device and method of sampling system - Google Patents
Water level control device and method of sampling system Download PDFInfo
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- CN104062985A CN104062985A CN201410259238.6A CN201410259238A CN104062985A CN 104062985 A CN104062985 A CN 104062985A CN 201410259238 A CN201410259238 A CN 201410259238A CN 104062985 A CN104062985 A CN 104062985A
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- 238000005070 sampling Methods 0.000 title claims abstract description 220
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000003020 moisturizing effect Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 abstract description 12
- 239000007788 liquid Substances 0.000 abstract description 4
- 241000190070 Sarracenia purpurea Species 0.000 abstract 2
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012905 input function Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention discloses a water level control device and a water level control method of a sampling system, wherein the device comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a liquid level switch, a temperature sensor and a controller; the first electromagnetic valve is arranged on a water drainage pipeline of a sampling water cup in the sampling system; the second electromagnetic valve is arranged on a water drainage pipeline of a sampler in the sampling system; the third electromagnetic valve is arranged on a water replenishing pipeline between the sampling water cup and the sampler; the liquid level switch is arranged in the sampler; the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the liquid level switch and the temperature sensor are respectively electrically connected with the controller. The water level control device and the water level control method of the sampling system realize the full-automatic control of the water level of the sampling system of the high-low temperature working condition chamber, avoid freezing of the sampling cup and the sampler under the low-temperature working condition, ensure the stability of the water level of the sampler on the basis of reducing the labor and equipment cost, and improve the accuracy of sampling test.
Description
Technical field
The present invention relates to technical field of automatic control, particularly relate to a kind of water-level control apparatus and method that is applied to the sampling system of high worst cold case chamber.
Background technology
The water level of traditional sampling system is controlled and is relied on artificial inspection completely, and manual operation is controlled, and is specially: low temperature hand-actuated, the manual moisturizing of high temperature.Control manually and have multiple drawback: 1, original, the waste of manpower resource of method machinery; 2, under worst cold case, can not guarantee the water of discharge sampling in time, easily cause sampling water tumbler and sampling thief are damaged by frost, and increase equipment cost; 3, manual operation standard is inconsistent, and water level control deviation is large, and the accuracy of sampling test result is difficult to guarantee.
Summary of the invention
Based on this, be necessary defect and deficiency for prior art, provide a kind of water-level control apparatus and method of sampling system, to realize the Automatic Control to sampling system water level in high worst cold case chamber.
For realizing the water-level control apparatus of the sampling system that the object of the invention provides, comprise the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, level switch, temperature sensor and controller;
Described the first solenoid valve is arranged on the discharge pipe line of the sampling water tumbler in described sampling system;
Described the second solenoid valve is arranged on the discharge pipe line of the sampling thief in described sampling system;
Described the 3rd solenoid valve is arranged on the water pipe between described sampling water tumbler and described sampling thief;
Described level switch is arranged in described sampling thief;
Described the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, level switch and temperature sensor are electrically connected to described controller respectively.
In an embodiment, the water-level control apparatus of sampling system of the present invention also comprises warning device therein, and described warning device is electrically connected to described controller.
In an embodiment, described warning device is pilot lamp and/or hummer therein.
In an embodiment, the water-level control apparatus of sampling system of the present invention also comprises display device therein, and described display device is electrically connected to described controller.
In an embodiment, described display device is display or digital display tube therein.
Correspondingly, for realizing the object of the invention, also provide a kind of method for controlling water level of sampling system, comprise the following steps:
Utilize temperature sensor to detect in real time the environment temperature of sampling system, and the environment temperature of the described sampling system detecting is sent to controller; In described controller, be preset with lower limit temperature and ceiling temperature;
When described controller judges that the environment temperature of the current described sampling system that it receives is less than described lower limit temperature, the second solenoid valve of controlling on the discharge pipe line of the first solenoid valve on the discharge pipe line of the sampling water tumbler in described sampling system and sampling thief is opened, and carries out draining;
When described controller judges that the environment temperature of the current described sampling system that it receives is greater than described ceiling temperature, control the second closed electromagnetic valve on the discharge pipe line of the first solenoid valve on the discharge pipe line of described sampling water tumbler and described sampling thief, stop draining; Control the level switch being arranged in described sampling thief simultaneously and open, detect in real time the water level in described sampling thief, and the water level in the described sampling thief detecting is sent to described controller, in described controller, be preset with lower limit water level and upper limit water level;
When described controller judges that water level in its described sampling thief receiving is lower than described lower limit water level, the 3rd solenoid valve of controlling on the water pipe between described sampling water tumbler and described sampling thief is opened, to described sampling thief, carry out moisturizing, until the water level in described sampling thief stops moisturizing while reaching described upper limit water level;
When described controller judges that the environment temperature of the current described sampling system that it receives is more than or equal to described lower limit temperature and is less than or equal to described ceiling temperature, carry out the control procedure of previous step.
In an embodiment, the method for controlling water level of sampling system of the present invention is further comprising the steps of therein:
In described controller, be preset with lack of water time of fire alarming, when described controller judges the water level in described sampling thief, lower than described lower limit water level, also continue after described lack of water time of fire alarming, control pilot lamp or hummer and send alarm, until the water level in described sampling thief stops alarm while reaching described upper limit water level.
In an embodiment, the method for controlling water level of sampling system of the present invention is further comprising the steps of therein:
Water level in the environment temperature of described controller control display or the digital display tube sampling system that the described temperature sensor of demonstration detects in real time and the described sampling thief that described level switch detects.
In an embodiment, the water-head between described lower limit water level and described upper limit water level is 1 millimeter to 2 millimeters therein.
In an embodiment, described lack of water time of fire alarming is 30 seconds to 60 seconds therein.
Beneficial effect of the present invention: the water-level control apparatus of sampling system provided by the invention and method, by set temperature sensor, detect in time worst cold case, and feed back to controller, controller is realized timely robotization draining by controlling solenoid valve, avoid sampling thief and sampling water tumbler to be damaged by frost, reduced manpower and equipment cost; Further, by level switch, detect in real time the water level in sampling thief, and feed back to controller, controller is controlled at the water level in sampling thief in critical field by controlling the switch of solenoid valve, guarantee the stable level of sampling thief, improved the accuracy of sampling test.The Automatic Control that it has realized high worst cold case chamber sampling system water level, greatly reduces manpower and equipment cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the water-level control apparatus of traditional sampling system;
Fig. 2 is the structural drawing of an embodiment of the water-level control apparatus of sampling system of the present invention;
Fig. 3 is the structural drawing of another embodiment of the water-level control apparatus of sampling system of the present invention.
Embodiment
Below in conjunction with embodiment, describe the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Referring to Fig. 1, conventionally, sampling system in high worst cold case chamber mainly comprises sampling water tumbler 10 and sampling thief 20, in sampling thief 20, be provided with the first thermometer 30 and the second thermometer 40, the first thermometer 30 is used for gathering the dry-bulb temperature in sampling thief 20, the second thermometer 40 lower ends are wrapped in sampling gauze 41, for gathering the wet-bulb temperature of sampling thief 20.When wet-bulb temperature gathers, need to guarantee that sampling gauze immerses the height of sample water, manual patrol moisturizing, can not guarantee that the water-immersed height of gauze is unanimously in critical field, and test error is large.
As shown in Figure 1, classic method arranges first-hand valve 50 on the pipeline between sampling water tumbler 10 and sampling thief 20, on the discharge pipe line of sampling water tumbler 10, second-hand's valve 60 is set, and manual operation is controlled.(suppose working temperature under be limited to 0 degree Celsius, on working temperature, be limited to 2 degrees Celsius) when working condition experimenting room temperature is 0 degree Celsius and when following, the first-hand valve 50 of manual unlocking and second-hand's valve 60, bleed off distilled water; When working condition experimenting room temperature is when more than 2 degrees Celsius, toward sampling water tumbler 10, add water manually, then open first-hand valve 50, water is mended in sampling thief 20.In moisturizing process, need the strict water level of controlling in sampling thief 20, the height that immerses sample waters with the gauze 41 that guarantees to sample, in certain critical field, could obtain wet-bulb temperature testing result more accurately like this.
Because traditional manual control method relies on artificial inspection completely, human cost is high, and the reliability of manpower inspection is uncontrollable, is difficult to the water of discharge sampling in time under worst cold case, easily cause sampling thief 20 and sampling water tumbler 10 to be damaged by frost, increase equipment use cost.Meanwhile, manual operation is difficult to guarantee the water level in sampling thief 20 to be controlled in critical field, causes wet-bulb temperature to detect inaccurate, the accuracy of impact sampling test result.
Referring to Fig. 2 and Fig. 3, an embodiment of the water-level control apparatus of sampling system provided by the invention, comprises the first solenoid valve 100, the second solenoid valve 200, the 3rd solenoid valve 300, level switch 400, temperature sensor 500 and controller 600.Referring to Fig. 2, the first solenoid valve 100 is arranged on the discharge pipe line of the sampling water tumbler 10 in sampling system, for controlling the switch of the discharge pipe line of sampling water tumbler 10; The second solenoid valve 200 is arranged on the discharge pipe line of the sampling thief 20 in sampling system, for controlling the switch of the discharge pipe line of sampling 20 devices; The 3rd solenoid valve 300 is arranged on the water pipe between sampling water tumbler 10 and sampling thief 20, for controlling the switch of water pipe; Level switch 400 is arranged in sampling thief 20, for detection of the water level in sampling thief 20.Temperature sensor 500 is arranged in the external environment at sampling system place, for detection of the environment temperature of sampling system.Level switch 400, temperature sensor 500, the first solenoid valve 100, the second solenoid valve 200 and the 3rd solenoid valve 300 are electrically connected to controller 600 respectively, (referring to Fig. 3).
Wherein, manually can be according to concrete operating mode demand, the environment temperature standard (comprising lower limit temperature and ceiling temperature) of default sampling system in controller 600, and the water level standard in sampling thief 20 (comprising lower limit water level and upper limit water level).Water level in the sampling thief 20 that the environment temperature of the sampling system that controller 600 detects according to temperature sensor 500 and level switch 400 detect, compare judgement with corresponding preset standard respectively, and control the unlatching of the first solenoid valve 100, the second solenoid valve 200, the 3rd solenoid valve 300 or close according to judged result, the water level Automatic Control of realization to high worst cold case chamber sampling system, its concrete control procedure is as follows:
Open temp sensor 500, temperature sensor 500 detects the environment temperature of sampling system in real time, and the environment temperature of the sampling system detecting is sent to controller 600, is preset with lower limit temperature and ceiling temperature in controller 600.
When the environment temperature of controller 600 its current sampling systems that receive of judgement is less than lower limit temperature, the second solenoid valve 200 on the first solenoid valve 100 on the discharge pipe line of the sampling water tumbler 10 in control sampling system and the discharge pipe line of sampling thief 20 is opened, and carries out draining.
When the environment temperature of controller 600 its current sampling systems that receive of judgement is greater than ceiling temperature, the second solenoid valve 200 on the first solenoid valve 100 on the discharge pipe line of control sampling water tumbler 10 and the discharge pipe line of sampling thief 20 cuts out, and stops draining; Control the level switch 400 being arranged in sampling thief 20 simultaneously and open, detect in real time the water level in sampling thief 20, and the water level in the sampling thief detecting 20 is sent to controller 600, in controller 600, be preset with lower limit water level and upper limit water level.Water level in its sampling thiefs that receive 20 of controller 600 judgement is during lower than lower limit water level, the 3rd solenoid valve 300 of controlling on the water pipe between sampling water tumbler 10 and sampling thief 20 is opened, sampling water tumbler 10 carries out moisturizing to sampling thief 20, until the water level in sampling thief 20 stops moisturizing while reaching upper limit water level.Wherein, the water-head between lower limit water level and upper limit water level is 1 millimeter to 2 millimeters, so, water-level fluctuation is controlled in 1 millimeter to 2 millimeters to the accuracy that guarantee is measured.
When the environment temperature of controller 600 its current sampling systems that receive of judgement is more than or equal to lower limit temperature and is less than or equal to ceiling temperature, carry out the control procedure of previous step.If the environment temperature that the operating mode of previous step is before this sampling system is less than lower limit temperature, illustrate that the environment temperature of sampling system is in propradation, the control procedure while adopting low temperature in temperature-rise period.Control the first solenoid valve 100 and the second solenoid valve 200 unlatchings, proceed draining.On the contrary, if the environment temperature that the operating mode of previous step is before this sampling system is greater than ceiling temperature, illustrate that the environment temperature of sampling system is in decline state, the control procedure while adopting high temperature in temperature-fall period.Control the first solenoid valve 100 and the second solenoid valve 200 cuts out, stop draining; Control level switch 400 simultaneously and open, detect in real time the water level in sampling thief 20, and the water level in the sampling thief detecting 20 is sent to controller 600.Water level in its sampling thiefs that receive 20 of controller 600 judgement during lower than lower limit water level, is controlled the 3rd solenoid valve 300 and is opened, and sampling water tumbler 10 carries out moisturizing to sampling thief 20, until the water level in sampling thief 20 stops moisturizing while reaching upper limit water level.
The water-level control apparatus of sampling system provided by the invention, does not need to control manually, has realized the Automatic Control of high worst cold case chamber sampling system water level completely.It detects worst cold case in time by temperature sensor 500, and feeds back to controller 600, and controller 600 is realized timely robotization draining by controlling solenoid valve, has avoided sampling thief and sampling water tumbler to be damaged by frost, and has reduced manpower and equipment cost; Further, level switch 400 detects the water level in sampling thief 20 in real time, and feeds back to controller 600, and controller 600 is controlled at the water level in sampling thief 20 in critical field by controlling the switch of solenoid valve, guarantee the stable level of sampling thief 20, improved the accuracy of sampling test.
Referring to Fig. 3, as a kind of embodiment, the water-level control apparatus of sampling system of the present invention also comprises warning device 700, and warning device 700 is electrically connected to controller 600.In controller 600, be preset with lack of water time of fire alarming, water level in controller 600 judgement sampling thiefs also continues after lack of water time of fire alarming lower than lower limit water level, control warning device 700 and send alarm, until the water level in sampling thief 20 stops alarm while reaching upper limit water level.Warning device 700 can have for pilot lamp, hummer etc. the device of vision or acoustic prompting function.Lack of water time of fire alarming can be set to 30 seconds or 60 seconds, is preferably 30 seconds.If sampling water tumbler 10, for a long time in exsiccosis, will cause whole test bed testing data to occur abnormal.So the setting of warning device 700 of the present invention, can remind operative employee in time to moisturizing in sampling water tank fast, effectively avoids test bed testing data to occur abnormal.
Referring to Fig. 3, as a kind of embodiment, the water-level control apparatus of sampling system of the present invention also comprises display device 800, and display device 800 is electrically connected to controller 600.Water level in the sampling thief 20 that the environment temperature of the sampling system that can in real time temperature sensor 500 be detected by display device 800 and level switch 400 detect shows, and makes the monitoring of whole work condition environment more transparent.Display device 800 can be display or digital display tube.Display device 800 can also be the touch display screen with input function, operating personnel can arrange parameter presets such as the lower limit temperature in controller 600, ceiling temperature, bottom limit level, the liquid level of reaching the standard grade and lack of water time of fire alarming by this touch display screen, also can the water level in the environment temperature of the sampling system detecting and sampling thief 20 be shown, realize man-machine interaction simultaneously.Further, controller 600 also has power failure memory function.
Based on same inventive concept, correspondingly the embodiment of the present invention also provides a kind of method for controlling water level of sampling system, because the principle that the method is dealt with problems is similar to the implementation procedure of the water-level control apparatus of aforementioned sample system, the enforcement of the method can realize by aforementioned means, therefore repeats part and repeats no more.
An embodiment of the method for controlling water level of sampling system provided by the invention, comprises the following steps:
S100, utilizes temperature sensor to detect in real time the environment temperature of sampling system, and the environment temperature of the sampling system detecting is sent to controller; In controller, be preset with lower limit temperature and ceiling temperature.
S200, when controller judges that the environment temperature of the current sampling system that it receives is less than lower limit temperature, the second solenoid valve on the first solenoid valve on the discharge pipe line of the sampling water tumbler in control sampling system and the discharge pipe line of sampling thief is opened, and carries out draining.
S300, when controller judges that the environment temperature of the current sampling system that it receives is greater than ceiling temperature, the second closed electromagnetic valve on the first solenoid valve on the discharge pipe line of control sampling water tumbler and the discharge pipe line of sampling thief, stops draining; Control the level switch being arranged in sampling thief simultaneously and open, detect in real time the water level in sampling thief, and the water level in the sampling thief detecting is sent to controller, in controller, be preset with lower limit water level and upper limit water level; Wherein, the water-head between lower limit water level and upper limit water level is 1 millimeter to 2 millimeters.When controller judges that water level in its sampling thief receiving is lower than lower limit water level, the 3rd solenoid valve of controlling on the water pipe between sampling water tumbler and sampling thief is opened, to sampling thief, carry out moisturizing, until the water level in sampling thief stops moisturizing while reaching upper limit water level.
S400, when controller judges that the environment temperature of the current sampling system that it receives is more than or equal to lower limit temperature and is less than or equal to ceiling temperature, carries out the control procedure of previous step.
As a kind of embodiment, the method for controlling water level of sampling system provided by the invention is further comprising the steps of:
S500, in controller, be preset with lack of water time of fire alarming, water level in controller judgement sampling thief is lower than lower limit water level and continue after lack of water time of fire alarming, controls pilot lamp or hummer and sends alarm, until the water level in sampling thief stops alarm while reaching upper limit water level.Wherein, lack of water time of fire alarming is 30 seconds to 60 seconds.
As a kind of embodiment, the method for controlling water level of sampling system provided by the invention is further comprising the steps of:
S600, the water level in the environment temperature of the sampling system that controller control display or the real-time displays temperature sensor of digital display tube detect and the sampling thief that level switch detects.
The water-level control apparatus of sampling system of the present invention and method, realized the Automatic Control of high worst cold case chamber sampling system water level, avoided worst cold case down-sampling water tumbler and sampling thief to be damaged by frost, on the basis that has reduced manpower and equipment cost, guarantee the stable of sampling thief water level, improved the accuracy of sampling test.
Above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a water-level control apparatus for sampling system, is characterized in that, comprises the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, level switch, temperature sensor and controller;
Described the first solenoid valve is arranged on the discharge pipe line of the sampling water tumbler in described sampling system;
Described the second solenoid valve is arranged on the discharge pipe line of the sampling thief in described sampling system;
Described the 3rd solenoid valve is arranged on the water pipe between described sampling water tumbler and described sampling thief;
Described level switch is arranged in described sampling thief;
Described the first solenoid valve, the second solenoid valve, the 3rd solenoid valve, level switch and temperature sensor are electrically connected to described controller respectively.
2. the water-level control apparatus of sampling system according to claim 1, is characterized in that, also comprises warning device, and described warning device is electrically connected to described controller.
3. the water-level control apparatus of sampling system according to claim 2, is characterized in that, described warning device is pilot lamp and/or hummer.
4. according to the water-level control apparatus of the sampling system described in claims 1 to 3 any one, it is characterized in that, also comprise display device, described display device is electrically connected to described controller.
5. the water-level control apparatus of sampling system according to claim 4, is characterized in that, described display device is display or digital display tube.
6. a method for controlling water level for sampling system, is characterized in that, comprises the following steps:
Utilize temperature sensor to detect in real time the environment temperature of sampling system, and the environment temperature of the described sampling system detecting is sent to controller; In described controller, be preset with lower limit temperature and ceiling temperature;
When described controller judges that the environment temperature of the current described sampling system that it receives is less than described lower limit temperature, the second solenoid valve of controlling on the discharge pipe line of the first solenoid valve on the discharge pipe line of the sampling water tumbler in described sampling system and sampling thief is opened, and carries out draining;
When described controller judges that the environment temperature of the current described sampling system that it receives is greater than described ceiling temperature, control the second closed electromagnetic valve on the discharge pipe line of the first solenoid valve on the discharge pipe line of described sampling water tumbler and described sampling thief, stop draining; Control the level switch being arranged in described sampling thief simultaneously and open, detect in real time the water level in described sampling thief, and the water level in the described sampling thief detecting is sent to described controller, in described controller, be preset with lower limit water level and upper limit water level;
When described controller judges that water level in its described sampling thief receiving is lower than described lower limit water level, the 3rd solenoid valve of controlling on the water pipe between described sampling water tumbler and described sampling thief is opened, to described sampling thief, carry out moisturizing, until the water level in described sampling thief stops moisturizing while reaching described upper limit water level;
When described controller judges that the environment temperature of the current described sampling system that it receives is more than or equal to described lower limit temperature and is less than or equal to described ceiling temperature, carry out the control procedure of previous step.
7. the method for controlling water level of sampling system according to claim 6, is characterized in that, further comprising the steps of:
In described controller, be preset with lack of water time of fire alarming, when described controller judges the water level in described sampling thief, lower than described lower limit water level, also continue after described lack of water time of fire alarming, control pilot lamp or hummer and send alarm, until the water level in described sampling thief stops alarm while reaching described upper limit water level.
8. according to the method for controlling water level of the sampling system described in claim 6 or 7, it is characterized in that, further comprising the steps of:
Water level in the environment temperature of described controller control display or the digital display tube sampling system that the described temperature sensor of demonstration detects in real time and the described sampling thief that described level switch detects.
9. according to the method for controlling water level of the sampling system described in claim 6 or 7, it is characterized in that, the water-head between described lower limit water level and described upper limit water level is 1 millimeter to 2 millimeters.
10. the method for controlling water level of sampling system according to claim 7, is characterized in that, described lack of water time of fire alarming is 30 seconds to 60 seconds.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568871A (en) * | 2019-09-18 | 2019-12-13 | 深圳市能源环保有限公司 | water supplementing control system for slag conveyor in waste incineration power plant |
| CN110568871B (en) * | 2019-09-18 | 2022-10-04 | 深圳能源环保股份有限公司 | Water supplementing control system for slag conveyor in waste incineration power plant |
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| CN104062985B (en) | 2017-07-28 |
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