CN106765780A - A kind of load-type ice measuring device - Google Patents
A kind of load-type ice measuring device Download PDFInfo
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- CN106765780A CN106765780A CN201710017713.2A CN201710017713A CN106765780A CN 106765780 A CN106765780 A CN 106765780A CN 201710017713 A CN201710017713 A CN 201710017713A CN 106765780 A CN106765780 A CN 106765780A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of load-type ice measuring device, including：Central processing unit（1）, temperature sensor signal processing module（2）, temperature sensor（6）And power module（4）, temperature sensor signal processing module（2）Receive temperature sensor（6）The temperature signal of detection, central processing unit is sent into after carrying out signal transacting（1）, also including pressure sensor signal processing module（3）With pressure sensor group（7）, pressure sensor signal processing module（3）Receive pressure sensor group（7）The signal related to ice amount of detection, central processing unit is sent into after carrying out signal transacting（1）.The apparatus structure is simple, low cost, it is possible to achieve the measurement of continuous total ice amount, can solve overall ice condition in exo-melting ice system, total ice storage amount information of the precisely controlled needs of energy, it is ensured that the realization of maximum energy-saving control.
Description
Technical field
The invention belongs to field of air conditioning, it is related to a kind of ice measuring device of ice storage air conditioner, more particularly to a kind of load
Formula ice measuring device.
Background technology
With the development of modern society, energy problem increasingly protrudes, and ice storage central air-conditioning is maximally effective as thermoelectricity
The energy adjustment means of peak load shifting, are more and more applied in Large Central Air Conditioning System system, when crest electricity price compares trough
When electricity price is more than double, with good economic benefit, while the generated energy of thermoelectricity can be reduced, thermoelectricity integrated application effect is improved
Rate, with good social benefit.It is coiled pipe type ice storing device that most ice storage units is applied in ice storage air conditioner, actually should
In, in order to improve energy utilization rate, it is desirable to which the cold storage capacity of trough-electricity period can all be efficiently applied to peak period.So may be used
To realize the optimum utilization of the energy.System ice storage amount is mainly measured by ice thickness sensor（Particularly exo-melting ice system）, and mesh
Preceding ice thickness sensor price is very high, and low precision, can only obtain the measurement result of several points, and measurement result is extensive, with
The precise control of needs, the requirement for pursuing optimum energy-saving effect differs greatly.
The content of the invention
In order to solve the above problems, the invention discloses a kind of load-type ice measuring device, including：Central processing unit,
Temperature sensor signal processing module, temperature sensor and power module, temperature sensor signal processing module receive temperature
The temperature signal of sensor detection, central processing unit is sent into after carrying out signal transacting, also processes mould including pressure sensor signal
Block and pressure sensor group, pressure sensor signal processing module receive the letter related to ice amount of pressure sensor group detection
Number, send into central processing unit after carrying out signal transacting.
Wherein, pressure sensor group includes two pressure sensors, and pressure sensor top is fixed on by fixed support
On coil-pipe water tank wall, pressure sensor bottom is fixed on coiled tube supports frame, and pressure sensor is connected to pressure and passes by lead
Sensor signal processing module.
Wherein, pressure sensor group detects the buoyancy of coil pipe Water in Water Tanks, and the buoyancy of its reclaimed water is related to ice amount, and ice amount is got over
Many, buoyancy is bigger.
Wherein, temperature sensor is arranged on coiled tube supports frame, and temperature sensor signal is passed the signal to by lead
Processing module, sensing point and the coil-pipe water tank bottom of temperature sensor keep certain distance.
Wherein, temperature sensor signal processing module includes resistance R1, resistance R2, resistance R3, resistance R6 and filter capacitor
First pin of C2, resistance R1 and first pin of resistance R2 and joining power, the crus secunda of resistance R1 and first pin of resistance R3
Tie point is connected to first pin of the network marked as A0.0 of central processing unit, the crus secunda of resistance R2 and first pin of resistance R6 and
The first pin tie point of filter capacitor C2 is connected to the crus secunda of the network marked as PT1000 of central processing unit, the second of resistance R3
The crus secunda and the crus secunda earth of filter capacitor C2 of pin and resistance R6, wherein resistance R6 is variable resistor, corresponding to temperature
Degree sensor.
Wherein, pressure sensor signal processing module includes the amplification that resistance R4, resistance R5 and instrument amplifier AD620 are constituted
Circuit, for the electric signal of pressure sensor to be amplified, wherein first pin of resistance R5 is connected to ground, crus secunda and pressure sensing
It is connected with the crus secunda of instrument amplifier AD620 after the signal negative terminal parallel connection of device group, first pin and instrument amplifier AD620 of resistance R4
The connection of the first pin, the octal connection of the crus secunda of resistance R4 and instrument amplifier AD620, the 3rd pin of instrument amplifier AD620
It is connected with the signal anode of pressure sensor group, the octal connection of instrument amplifier AD620, the 6th pin of instrument amplifier AD620
It is connected to fourth pin of the network marked as iecAD of central processing unit.
Wherein, pressure sensor signal processing module and temperature sensor signal processing module are sent to central processing unit
Two voltage signals partner differential signal.
Wherein, also including wireless RENS communication modules, the dynamic of the icing amount for ice measuring device to be measured in real time
Signal is sent to host computer.
Wherein, load-type ice measuring device corrects the result of measurement by automatic calibration zero point.
Device of the invention measures the dynamic value and temperature value of icing amount in real time, and Dynamic Signal is communicated by wireless RENS
Module is sent to PC control software, and PC control software obtains icing rate curve by analyzing icing signal, according to
Icing rate curve, adjusting device operational factor and control strategy, reach the purpose of optimal control：With reducing energy consumption, and can make
Equipment is in " health " running status as far as possible, with the service life of extension device.
Load-type ice measuring device can obtain one group of measurement signal of consecutive variations icing amount, can be by automatic school
Accurate " zero point " corrects the result of measurement, reaches the purpose of accurate measurement.
The beneficial effects of the invention are as follows：（1）Simple structure, low cost；（2）Continuous total icing measurement can be realized,
Total ice amount information of the precisely controlled needs of energy（Ice storage amount）, it is ensured that the realization of maximum energy-saving control.
Brief description of the drawings
Fig. 1：The electrical structure schematic block diagram of load-type ice measuring device；
Fig. 2：The pressure sensor and temperature sensor mounting structure schematic diagram of Ice storage coiled pipe；
Fig. 3：The circuit theory diagrams of load-type ice measuring device.
Description of reference numerals：
1. central processing unit；2. temperature sensor signal processing module；
3. pressure sensor signal processing module；4. power module；
5. wireless RENS communication modules；6. temperature sensor；
7. pressure sensor group；8. coiled tube supports frame
9. pressure sensor fixed support；10. coil-pipe water tank；
11. coil pipes.
Specific embodiment
The present invention is specifically described below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1, load-type ice measuring device mainly includes：Central processing unit 1, temperature sensor signal processes mould
Block 2, pressure sensor signal processing module 3, power module 4, wireless RENS communication modules 5, temperature sensor 6 and pressure sensing
Device group 7.When using, central processing unit 1 and temperature sensor signal processing module 2, pressure sensor signal processing module 3, electricity
Source module 4 and wireless RENS communication modules 5 are electrically connected.Accompanying drawing 2 and accompanying drawing 3 are exactly specific implementation detail.
Pressure sensor group 7 includes two pressure sensors, and pressure sensor is fixed on coil pipe above with fixed support 9
It is fixed on water tank wall, below pressure sensor on coiled tube supports frame 8, pressure sensor is connected to pressure sensor by lead
Signal processing module 3.Temperature sensor 6 is also mounted on coiled tube supports frame 8, and temperature sensor is passed the signal to by lead
Signal processing module, sensing point and the coil-pipe water tank distance from bottom of temperature sensor 6 are 20cm or so.
Model C8051F350 single-chip microcomputer of the central processing unit 1 from the production of SILICON LAB S. A..In this single-chip microcomputer
Tool 24AD converters are put, and multiplication factor can select 1 times, 2 times, 4 times, 8 times, 16 times, 32 times, 64 times, 128 times, measurement is logical
Road can be calibrated automatically, eliminated systematic error, can be obtained certainty of measurement very high, this function exactly apparatus of the present invention institute
Need.
The circuit diagram of temperature sensor signal processing module 2 is shown in Fig. 3, including resistance R1, resistance R2, resistance R3, resistance R6
With filter capacitor C2, wherein resistance R6 is the temperature sensor 6 in variable resistor, that is, accompanying drawing 2, and what is selected here is Shanghai
The PT1000 RTDs of nine trade finite instrument companies production；The resistance value of PT1000 can change with the change of temperature is write, zero degree
When resistance be 1.000K.First pin of resistance R1 and first pin of resistance R2 and joining power VCC (3.3V), the second of resistance R1
Pin is connected to the first pin of central processing unit 1 with the first pin tie point of resistance R3（Network is marked as A0.0）, the second of resistance R2
Pin is connected to the crus secunda of central processing unit 1 with first pin of resistance R6 and the first pin tie point of filter capacitor C2（Network label
It is PT1000）, the crus secunda earth of the crus secunda of resistance R3 and the crus secunda of resistance R6 and filter capacitor C2, wherein resistance
R1, resistance R2 and resistance R3 are the high-accuracy resistance of 1K, it is desirable to which precision is not more than 0.1%, and temperature drift coefficient is not more than 20PPm.Filter
The value requirement of ripple electric capacity C2 is 100uf/6.3V.
The corresponding circuit of pressure sensor group module 3 is as shown in figure 3, including resistance R4, resistance R5 and instrument amplifier
First pin of AD620, resistance R5 is connected to ground, with instrument amplifier after the signal negative terminal parallel connection of crus secunda and pressure sensor group
The crus secunda of AD620（Differential signal input negative terminal）Connection, first pin of resistance R4 and first pin of instrument amplifier AD620 connect
Connect, the octal connection of the crus secunda and instrument amplifier AD620 of resistance R4, (differential signal is defeated for the 3rd pin of instrument amplifier AD620
Enter anode) it is connected with the signal anode of pressure sensor group, the 6th pin (amplification signal output part) connection of instrument amplifier AD620
To fourth pin of the network marked as iecAD of central processing unit.Wherein R4 and R5 are the high-accuracy resistance of 1K, it is desirable to which precision is not
More than 0.1%, temperature drift coefficient is not more than 20PPm, and the amplifying circuit of resistance R4, resistance R5 and instrument amplifier AD620 compositions can be
The electric signal of pressure sensor 7 amplifies the sensed pressure of pressure sensor 7 in 50 times, that is, accompanying drawing 2.
As shown in figure 3, the corresponding circuit of power module 4 includes transformer T1, filter capacitor C1 and filter capacitor C4, wherein
From the switch power module of the model SHB-2.5W-3.3 of Hangzhou Shan Bo Electronics Co., Ltd.s production, the module is electricity wide to T1
Pressure input（AC85V-260V）, it is output as the high-accuracy power supply of 3.3V.First pin and crus secunda of T1 meet AC220V, T1 when using
The 3rd pin for ground（GND）, the 4th pin of T1 is power supply VCC (3.3V), is assembly of the invention provides power supply.Filter capacitor C1
The first pin and filter capacitor C4 the first pin the 4th pin with T1 in parallel（VCC）Electrical connection, the crus secunda of filter capacitor C1 and
The crus secunda of filter capacitor C4 the 3rd pin with T1 in parallel（GND）Electrical connection, the value requirement of filter capacitor C1 is 1000uf/
6.3V, the value requirement that filter capacitor goes out is 0.1uf.
The measuring principle of load-type ice amount of the present invention is that have different densities using water and ice, that is, 1 kilogram of 0 DEG C of water freezes
The ice volume change for forming 1 kilogram 0 DEG C is different, therefore produces different buoyancy：1 kilogram of 0 DEG C of water is frozen into 1 kilogram 0 DEG C
Ice volume change.
Variation in buoyancy：
N
The ice that 1 kilogram of 0 DEG C of water is frozen into 1 kilogram 0 DEG C can produce 0.88 Newton force, and an icing amount for Ice storage coiled pipe is at least
5000 kilograms, at most 100000 kilograms, usually：40000 kilograms, that is to say, that conventional coil pipe build-ups ice from water will be produced
35200 Newton forces, are easy to measure from approximate 0 Newton force to 35200 Newton forces, however, to insure that measurement
The accuracy of value, notes the range of reasonable selection pressure sensor, and Type Selection Principle is the maximum range and disk of pressure sensor group
The maximum buoyancy that Guan Congshui becomes ice generation completely is approached.The signal of pressure sensor is amplified 50 by pressure sensor group module 3
Times, the fourth pin device of the network marked as iecAD of central processing unit is connected to, central processing unit device 1 obtains voltage signal
IecAD, central processing unit 1（Single-chip microcomputer）1 times can be amplified with selection signal, voltage signal iecAD passes through 24 bit A/D converter quilts
The binary number of one 24 is converted into, it is convenient generally for treatment, take preceding 16 bit, it is also possible to regard one as
The 16 system numbers of 0-ffffH,（It is exactly 0-65535 to change into 10 system numbers）By data processing and demarcation, it is possible to obtain one
The value of ice amount（Resolving power takes 0.1 kilogram）.Because buoyancy initial value of the coil pipe in water is not zero, therefore before ice amount is measured
Need to calibrate zero point.According to experiment, when fluid temperature is 3 degree, calibration zero point conveniently, now can be determined that without icing, pressure
The magnitude of voltage of sensor can regard the initial value of icing as, and the ice numerical quantity read by central processing unit 1 is considered as 0.0 kilogram,
Calibrate zero point.Need to measure the water temperature near water tank bottom to calibrate zero point, the measurement of water temperature can be by TEMP
Device 6 and temperature sensor signal processing module 2 are carried out, and corresponding circuit can be seen that at temperature sensor signal from accompanying drawing 3
Resistance R6 in reason module 2 can regard the resistance of temperature sensor as, and temperature sensor here is PT1000 RTDs,
It is 1K in zero point, and when -20 spend, the resistance of temperature sensor is 921.992, the electricity of temperature sensor at 30 degree
Resistance resistance is 1116.342.The resistance table of comparisons according to PT1000 can calculate corresponding magnitude of voltage (PT1000), center treatment
Temperature sensor PT100 0 and A0.0 are formed a pair of differential signals by device 1, and corresponding 24 AD values are exported after amplifying 4 times,
The binary number of one 24 is namely converted into, it is convenient generally for treatment, take preceding 16 bit, it is also possible to see
Into a 16 system numbers of 0-ffffH,（It is exactly 0-65535 to change into 10 system numbers）By data processing and demarcation, it is possible to
To a temperature value（Resolving power goes 0.01 degree）The zero point correction of ice measurement is carried out when etc. measurement temperature being 3 degree.Actually should
The temperature measured in is additionally operable to monitor the water temperature in Ice Storage Tank, according to the height of water temperature in addition to for ice amount zero point correction
The cold for needing, adjusting device operational factor and control strategy are calculated, the purpose of optimal control is reached.The purpose of optimal control can
With reducing energy consumption, and make equipment as far as possible in " health " running status, with the service life of extension device.
As the preferred embodiment of the present invention, present invention additionally comprises wireless RWNS communication modules 5, the He of central processing unit 1
Wireless RWNS communication modules 5 are electrically connected using I/O modes.Wireless RWNS communication modules 5 are used for the pressure value and temperature that will be measured
Value is sent to host computer so as to realize wireless data teletransmission.Wireless RWNS communication modules 5 can select the production of Lleida company
LSDRF4310N03 wireless communication modules, it is electrically connected with central processing unit 1 by there is 6 data lines.Such as 18 institutes in Fig. 3
Show, wherein the pin of the corresponding central processing unit 1 of the GD02 labels being connected with central processing unit 1 is needed with outer interruption work(
Can, the wireless RWNS communication modules 5 are used for the buoyancy numerical value that will be measured and Temperature numerical is sent to host computer.PC control
Software obtains icing rate curve by analyzing icing signal, according to icing rate curve, adjusting device operational factor and control
Strategy, reaches the purpose of optimal control.The purpose of optimal control with reducing energy consumption, and can make equipment be in " health " as far as possible
Running status, with the service life of extension device.
Claims (9)
1. a kind of load-type ice measuring device, including：Central processing unit（1）, temperature sensor signal processing module（2）, temperature
Degree sensor（6）And power module（4）, temperature sensor signal processing module（2）Receive temperature sensor（6）The temperature of detection
Degree signal, central processing unit is sent into after carrying out signal transacting（1）, it is characterised in that also process mould including pressure sensor signal
Block（3）With pressure sensor group（7）, pressure sensor signal processing module（3）Receive pressure sensor group（7）Detect and ice
Related signal is measured, central processing unit is sent into after carrying out signal transacting（1）.
2. load-type ice measuring device according to claim 1, it is characterised in that：Pressure sensor group（7）Including two
Pressure sensor, pressure sensor top passes through fixed support（9）It is fixed on coil-pipe water tank wall, pressure sensor bottom is consolidated
It is scheduled on coiled tube supports frame（8）On, pressure sensor is connected to pressure sensor signal processing module by lead（3）.
3. load-type ice measuring device according to claim 2, it is characterised in that：Pressure sensor group（7）Detection plate
Pipe water tank（10）The buoyancy of reclaimed water, the buoyancy of its reclaimed water is related to ice amount, and ice amount is more, and buoyancy is bigger.
4. the load-type ice measuring device according to Claims 2 or 3, it is characterised in that：Temperature sensor（6）It is arranged on
Coiled tube supports frame（8）On, temperature sensor signal processing module is passed the signal to by lead（2）, temperature sensor（6）'s
Sensing point keeps certain distance with coil-pipe water tank bottom.
5. the load-type ice measuring device according to claim any one of 1-4, it is characterised in that：Temperature sensor signal
Processing module（2）Including resistance R1, resistance R2, resistance R3, resistance R6 and filter capacitor C2, the first pin and the resistance R2 of resistance R1
The first pin and joining power, the tie point of the crus secunda of resistance R1 and first pin of resistance R3 is connected to central processing unit（1）'s
First pin of the network marked as A0.0, the crus secunda of resistance R2 is connected with the first pin of first pin of resistance R6 and filter capacitor C2
Point is connected to central processing unit（1）Crus secunda of the network marked as PT1000, the crus secunda of resistance R3 and the crus secunda of resistance R6
And the crus secunda earth of filter capacitor C2, wherein resistance R6 is variable resistor, corresponding to temperature sensor（6）.
6. the load-type ice measuring device according to claim any one of 1-5, it is characterised in that：Pressure sensor signal
Processing module（3）Including the amplifying circuit that resistance R4, resistance R5 and instrument amplifier AD620 are constituted, for by pressure sensor（7）
Electric signal amplify, wherein first pin of resistance R5 is connected to ground, after the signal negative terminal parallel connection of crus secunda and pressure sensor group
Crus secunda with instrument amplifier AD620 is connected, the first pin connection of first pin and instrument amplifier AD620 of resistance R4, resistance R4
Crus secunda and instrument amplifier AD620 octal connection, the 3rd pin of instrument amplifier AD620 and the signal of pressure sensor group
Anode is connected, and the octal connection of instrument amplifier AD620, the 6th pin of instrument amplifier AD620 is connected to central processing unit（1）'s
Fourth pin of the network marked as iecAD.
7. the load-type ice measuring device according to claim any one of 1-6, it is characterised in that：Pressure sensor signal
Processing module（3）With temperature sensor signal processing module（2）It is sent to central processing unit（1）Two voltage signals composition one
To differential signal.
8. the load-type ice measuring device according to claim any one of 1-7, it is characterised in that：Also include wireless RENS
Communication module（5）, for the Dynamic Signal of the icing amount of the real-time measurement of ice measuring device to be sent into host computer.
9. the load-type ice measuring device according to claim any one of 1-8, it is characterised in that：Load-type ice measurement
Device corrects the result of measurement by automatic calibration zero point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017713.2A CN106765780A (en) | 2017-01-11 | 2017-01-11 | A kind of load-type ice measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710017713.2A CN106765780A (en) | 2017-01-11 | 2017-01-11 | A kind of load-type ice measuring device |
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| Publication Number | Publication Date |
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| CN106765780A true CN106765780A (en) | 2017-05-31 |
Family
ID=58948867
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| CN201710017713.2A Pending CN106765780A (en) | 2017-01-11 | 2017-01-11 | A kind of load-type ice measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447804A (en) * | 2021-12-20 | 2022-05-06 | 山东泰开隔离开关有限公司 | Fire protection system and method suitable for isolating switch |
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| JP2000055495A (en) * | 1998-08-05 | 2000-02-25 | Sanyo Electric Co Ltd | Air conditioner provided with ice heat storage tank |
| CN2826381Y (en) * | 2005-09-29 | 2006-10-11 | 北京新地普乐环境科技有限公司 | Pressure type glaciometer |
| CN103151749A (en) * | 2013-04-01 | 2013-06-12 | 任雪松 | Electromagnetic induction de-icing method and device |
| CN103410117A (en) * | 2013-08-27 | 2013-11-27 | 湖南三楚科技有限公司 | Anti-icing device |
| CN105737729A (en) * | 2016-03-02 | 2016-07-06 | 杭州源牌环境设备有限公司 | Ice thickness measurement device used for ice storage coil pipe |
| CN206488401U (en) * | 2017-01-11 | 2017-09-12 | 杭州源牌环境设备有限公司 | A kind of load-type ice measuring device |
-
2017
- 2017-01-11 CN CN201710017713.2A patent/CN106765780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000055495A (en) * | 1998-08-05 | 2000-02-25 | Sanyo Electric Co Ltd | Air conditioner provided with ice heat storage tank |
| CN2826381Y (en) * | 2005-09-29 | 2006-10-11 | 北京新地普乐环境科技有限公司 | Pressure type glaciometer |
| CN103151749A (en) * | 2013-04-01 | 2013-06-12 | 任雪松 | Electromagnetic induction de-icing method and device |
| CN103410117A (en) * | 2013-08-27 | 2013-11-27 | 湖南三楚科技有限公司 | Anti-icing device |
| CN105737729A (en) * | 2016-03-02 | 2016-07-06 | 杭州源牌环境设备有限公司 | Ice thickness measurement device used for ice storage coil pipe |
| CN206488401U (en) * | 2017-01-11 | 2017-09-12 | 杭州源牌环境设备有限公司 | A kind of load-type ice measuring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447804A (en) * | 2021-12-20 | 2022-05-06 | 山东泰开隔离开关有限公司 | Fire protection system and method suitable for isolating switch |
| CN114447804B (en) * | 2021-12-20 | 2023-07-14 | 山东泰开隔离开关有限公司 | Fire protection system and method suitable for isolating switch |
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Application publication date: 20170531 |