CN104375523A - Power induction liquid surface height limiting device - Google Patents
Power induction liquid surface height limiting device Download PDFInfo
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- CN104375523A CN104375523A CN201310349155.1A CN201310349155A CN104375523A CN 104375523 A CN104375523 A CN 104375523A CN 201310349155 A CN201310349155 A CN 201310349155A CN 104375523 A CN104375523 A CN 104375523A
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- level height
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Abstract
The invention discloses a power induction liquid surface height limiting device. The power induction liquid surface height limiting device is characterized by comprising metal contacts, a relay main circuit, feed valves, a pulp discharge valve and a pulp mixing pool body. An electromagnetic relay main circuit is powered on through an electromagnetic relay and the electric conductivity of pulp, and therefore a work circuit is driven to close all the feed valves and open the discharge valve, and the liquid surface height can be adjusted in time. When the liquid surface falls below the maximum value, no power-on current exists in the relay main circuit, the relay is demagnetized so that traction force can disappear, a valve controller stops working, and the pulp discharge valve is closed. The power induction liquid surface height limiting device is used in a pulp mixing pool for preparing vacuum insulating panel core materials, and has the advantages that the liquid surface is automatically controlled in the feed process due to the use of the electromagnetic relay, cost is low, and practicability is high.
Description
Technical field
The invention belongs to liquid or slurry liquid surface height controlling technical field, specifically relate to a kind of vacuum heat-insulating plate with slurry time pond with slurry liquid level restraint device.
Background technology
Vacuum heat-insulating plate is core material with glass fibre, take barrier composite films as packaging bag, the state-of-the-art thermal insulation material in the world be at present prepared from after Vacuum Package, need carry out process with slurry storing in stock tank before its core material is shaping.And in process with slurry, fully mix for making slurry, adjuvant spreads completely, neither cause when stirring and splash and waste slurry and do not affect production efficiency, slurry liquid level must control through row is strict.
Current level gauging has a variety of method, as the direct method of measurement, buoy mensuration, ultrasonic reflections mensuration, capacity water level measuring method, infrared reflection mensuration.Direct method of measurement application is loaded down with trivial details, and expend time in energy, and error is large, and is difficult to realize the higher liquid level test of water level.Buoy mensuration method is subject to buoyancy of water effect according to the float (also becoming buoy) swum on liquid level to produce displacement with the change of water level and carry out level gauging, install complicated, measuring accuracy is low, unreliable, often occur that stuck motionless the blocking with sensor of float causes indeterminacy; Maintenance workload is large, and install, debug inconvenience, what collect is only simulation alarm signal, can not directly enter power plant's computer supervisory control system.Ultrasonic reflections mensuration and infrared reflection mensuration are by sound wave and electromagnetic reflection process, the time of transmitting and receiving process or last gained signal intensity are measured, although measuring error is little, cost is relatively high, is used in general industry production and rather wastes one's talent on a petty job.Capacity water level measuring method is by the change rule of intermediate medium specific inductive capacity and the method for computation and measurement liquid level, be quick on the draw although have, advantages of simple structure and simple, but due to the uncertain factor such as uncertainty of tested paste composition, specific inductive capacity can be caused unstable and cause comparatively big error, wayward.
Shanghai University Of Engineering Science discloses a kind of water level supervisory system in the patent of invention of publication number CN102809407A.This system utilizes the combination of infrared sensor detection technique and single-chip microcomputer operation technique, and achieve the monitoring of water level real-time radio, measurement result is reliable and stable.
In commercial production, often do not need too complex to control hi-tech accurately, and prepare in pond with slurry at above-mentioned core material of vacuum heat insulation plate, do not need to obtain too accurate liquid level value yet, so the minimizing on cost just directly can improve product profit, economize energy.
Modern industry often adopts buoy mensuration to carry out the height monitoring of liquid level in producing, it is simple and easy that the method has installation, the advantage that cost is less, meanwhile, the installation and maintenance of instrument all still eaily, but, also failing to realize automation process completely, is the deficiency in commercial production in fact.
Utilize slurry conductivity principle, be aided with the use of electromagnetic relay, then can realize the automated process of charging limit for height, cost is less, and technological process is also simplified.
Summary of the invention
Object of the present invention is intended to overcome the deficiencies in the prior art, the liquid level height limiter of the eletric power induction providing a kind of principle simple, easy to maintenance, with low cost, easy to use.
The technical scheme adopted for realizing object of the present invention is: the liquid level height limiter providing a kind of eletric power induction, is characterized in that comprising metal contact (11), relay main circuit (12), material inlet valve (13), blowing valve (14) and pond with slurry body (15).By using electromagnetic relay, utilize slurry electric conductivity, connect electromagnetic relay main circuit, thus drive operating circuit close each road material inlet valve and open discharge valve do timely liquid level adjustment, when liquid level is reduced to below maximal value, relay main circuit is without electrical current, relay demagnetization and tractive force is disappeared, valve positioner, quits work, blowing valve closing.
The described plastics waterproofing shell that pair of metal contact (11) outsourcing 0.5 ~ 1.5cm is thick, 2.0 ~ 5.0cm is high, the systematic error that after reducing water level reduction, liquid conduction causes, at a distance of 0.1 ~ 0.3m between upper and lower two metal contact (11).
Described liquid level height limiter, its upper metal contact is placed in apart from 0.2 ~ 0.5m place, top, pond, and namely in the body of pond, liquid level allows the maximum height reached.
Produce magnetic force when described relay main circuit (12) is connected, attract reed to move down, connect operating circuit.
Described material inlet valve (13) comprises plain boiled water valve, pure water valve, send slurry valve and adjuvant supply valve, is all positioned at top, pond with slurry body (15).
Described blowing valve (14) is higher than 0.2 ~ 0.5m place, top, pond, and namely in the body of pond, the page allows the maximum height reached.
The valve positioner (22) of all material inlet valves and blowing valve, when relay operating circuit is connected, changes valve using state, and namely material inlet valve (13) is opened and blowing valve (14) closedown.
The rectangular parallelepiped cement pit body scribbling water-proof coating is covered in described pond with slurry body (15) in being, be beneficial to the raising of cement pit water-holding capacity.
Effect: the present invention compared with prior art, has the following advantages:
(1) adopt circuit theory simple, facilitate controlled;
(2) this electric circuit metal contact position is fixed, and is added with insulation and can protects, and influence factor is little, accurately and reliably;
(3) the technology original paper used is simple, with low cost;
(4) automated process is achieved, easy to operate.
Accompanying drawing explanation
Fig. 1 is the liquid level height limiter structure principle chart of a kind of eletric power induction of the present invention;
Fig. 2 is the liquid level height limiter simplified electrical circuit diagram of a kind of eletric power induction of the present invention.
Embodiment
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims and limited.
Embodiment
With reference to Fig. 2, the liquid level height limiter of a kind of eletric power induction described in the present embodiment, is characterized in that comprising metal contact (11), relay main circuit (12), material inlet valve (13), blowing valve (14) and pond with slurry body (15).
When this liquid level height limiter is installed, concrete technology step is as follows:
(1) by plastic housing high for the thick 3.0cm of pair of metal contact (11) outsourcing 1.0cm, installation site vertical range is set to 0.2m:
(2) apart from 0.3m place, top, pond and 0.5m place, two metal contact are being installed respectively, above in the position of metal contact and pond body liquid level allow the maximum height reached;
(3), after relay main circuit (12) is connected, electromagnet (21) produces magnetic force and attracts reed to move down, and connects operating circuit;
(4) by plain boiled water valve, pure water valve, send slurry valve and adjuvant supply valve be generically and collectively referred to as material inlet valve, be all installed on pond with slurry body (15) top;
(5) be arranged on by blowing valve (14) apart from 0.3m place, top, pond, namely in the body of pond, the page allows the maximum height reached;
(6) set the valve positioner (22) of all material inlet valves and blowing valve when relay operating circuit is connected, change valve using state, namely material inlet valve (13) is opened and blowing valve (14) closedown;
(7) water-proof coating is coated with by the body of pond with slurry for rectangular parallelepiped cement.
The above embodiment, it is only preferred embodiment of the present invention, be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.In every case be the content not departing from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (7)
1. a liquid level height limiter for eletric power induction, is characterized in that comprising metal contact (11), relay main circuit (12), material inlet valve (13), blowing valve (14) and pond with slurry body (15).
2. liquid level height limiter according to claim 1, it is characterized in that described metal contact (11) is placed in apart from 0.2 ~ 0.5m place, top, pond, the plastic housing that metal contact (11) outsourcing 0.5 ~ 1.5cm is thick, 2.0 ~ 5.0cm is high, at a distance of 0.1 ~ 0.3m between upper and lower two metal contact.
3. liquid level height limiter according to claim 1, produces magnetic force and connects operating circuit when it is characterized in that described relay main circuit (12) is connected.
4. liquid level height limiter according to claim 1, is characterized in that described material inlet valve (13) comprises plain boiled water valve, pure water valve, send slurry valve and adjuvant supply valve, is all positioned at top, pond with slurry body (15).
5. want the liquid level height limiter described in 1 according to right, it is characterized in that described blowing valve (14) is higher than 0.2 ~ 0.5m place, top, pond.
6. liquid level height limiter according to claim 1, it is characterized in that the valve positioner (22) of all material inlet valves and blowing valve is when relay operating circuit is connected, change valve using state, namely material inlet valve (13) is opened and blowing valve (14) closedown.
7. liquid level height limiter according to claim 1, is characterized in that the rectangular parallelepiped cement pit body scribbling water-proof coating is covered in being in described pond with slurry body (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349155.1A CN104375523A (en) | 2013-08-12 | 2013-08-12 | Power induction liquid surface height limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349155.1A CN104375523A (en) | 2013-08-12 | 2013-08-12 | Power induction liquid surface height limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104375523A true CN104375523A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310349155.1A Pending CN104375523A (en) | 2013-08-12 | 2013-08-12 | Power induction liquid surface height limiting device |
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| Country | Link |
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| CN (1) | CN104375523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604158A (en) * | 2020-05-14 | 2020-09-01 | 东莞市唯美陶瓷工业园有限公司 | Method and system for automatically feeding ceramic slurry and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154144A (en) * | 1998-08-05 | 2000-11-28 | Johnson; Stephen | Auto shutoff overflow controller |
| CN2426139Y (en) * | 2000-05-18 | 2001-04-04 | 陈柏辉 | Induction type liquid level controller |
| CN1971465A (en) * | 2005-11-23 | 2007-05-30 | 天津市云海炭素制品有限公司 | Liquid level self controller |
| CN202433782U (en) * | 2011-12-13 | 2012-09-12 | 天津力神电池股份有限公司 | Mucilage level control system |
| CN103128857A (en) * | 2011-11-28 | 2013-06-05 | 中铁十八局集团第三工程有限公司 | Bentonite slurrying control system for shield construction and method |
-
2013
- 2013-08-12 CN CN201310349155.1A patent/CN104375523A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6154144A (en) * | 1998-08-05 | 2000-11-28 | Johnson; Stephen | Auto shutoff overflow controller |
| CN2426139Y (en) * | 2000-05-18 | 2001-04-04 | 陈柏辉 | Induction type liquid level controller |
| CN1971465A (en) * | 2005-11-23 | 2007-05-30 | 天津市云海炭素制品有限公司 | Liquid level self controller |
| CN103128857A (en) * | 2011-11-28 | 2013-06-05 | 中铁十八局集团第三工程有限公司 | Bentonite slurrying control system for shield construction and method |
| CN202433782U (en) * | 2011-12-13 | 2012-09-12 | 天津力神电池股份有限公司 | Mucilage level control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604158A (en) * | 2020-05-14 | 2020-09-01 | 东莞市唯美陶瓷工业园有限公司 | Method and system for automatically feeding ceramic slurry and storage medium |
| CN111604158B (en) * | 2020-05-14 | 2021-09-21 | 东莞市唯美陶瓷工业园有限公司 | Method and system for automatically feeding ceramic slurry and storage medium |
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Application publication date: 20150225 |