CN205593481U - A ice thickness measuring device for ice -reserving coil pipe - Google Patents
A ice thickness measuring device for ice -reserving coil pipe Download PDFInfo
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- CN205593481U CN205593481U CN201620157954.8U CN201620157954U CN205593481U CN 205593481 U CN205593481 U CN 205593481U CN 201620157954 U CN201620157954 U CN 201620157954U CN 205593481 U CN205593481 U CN 205593481U
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Abstract
The utility model discloses an ice thickness measuring device for ice -reserving coil pipe, include: signal processing module (3), temperature sensor (6), ice thickness detector (7) and power module (4) are surveyed to central processing unit (1), temperature sensor signal processing module (2), ice thickness, and the temperature signal that temperature sensor (6) were detected is received in temperature sensor signal processing module (2), carry on sending into behind the temperature sensor 0 central processing unit (1), the ice thickness is surveyed signal processing module (16) and is received the signal of ice thickness detectors (7) surveying relevant with the ice thickness, carries on sending into behind the signal processing central processing unit (1).
Description
Technical field
This utility model belongs to field of air conditioning, relates to the measuring of ice thickness device of a kind of ice storage air conditioner, particularly relates to one
Measuring of ice thickness device for Ice storage coiled pipe.
Background technology
Along with the development of modern society, energy problem is more and more prominent, 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, there is good economic benefit, the generated energy of thermoelectricity can be reduced simultaneously, improve thermoelectricity integrated application effect
Rate, has good social benefit.Applying most ice storage units in ice storage air conditioner is coiled pipe type ice storing device, should in reality
In with, in order to improve energy utilization rate, it is desirable to 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 recorded (particularly exo-melting ice system) by ice thickness sensor, and mesh
Before ice thickness sensor price the highest, and low precision, (icing thickness is gross thickness to can only obtain the measurement result of several point
20%, 40%, 60%, 80%, 100%) measurement result is extensive, with the accurate control needed, pursues the requirement of optimum energy-saving effect
Differ greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of measuring of ice thickness device for Ice storage coiled pipe, and this is used for Ice storage coiled pipe
Measuring of ice thickness device, simple in construction, low cost, it is possible to achieve measure continuously, can the ice thickness information of precisely controlled needs
(ice storage amount), it is ensured that the realization that maximum energy-saving controls.
The utility model discloses a kind of measuring of ice thickness device for Ice storage coiled pipe, including: central processing unit, temperature pass
Sensor signal processing module, ice thickness detectable signal processing module, temperature sensor, ice thickness detector and power module, temperature
Sensor signal processing module receives the temperature signal of temperature sensor detection, sends into central processing unit after carrying out signal processing；
Ice thickness detectable signal processing module receives the signal relevant to ice thickness of ice thickness detector detection, in sending into after carrying out signal processing
Central processor.
Wherein, ice thickness detector includes the first ice thickness probe, the second ice thickness probe, fixed support and buckle, the first ice thickness
Probe and the second ice thickness probe are parallel to each other, and two ends are all vertically fixed on two fixed supports, and probe insulate with fixed support,
Fixed support is fixed by snap between two coil pipes, by connecting line, the signal that probe detects is sent to central authorities and processes
Device.
Wherein, along with ice gradually covers surface from the upper and lower side of the first ice thickness probe and the second ice thickness probe, the
Resistance between one ice thickness probe and the second ice thickness probe will become larger, and measures between two probes when not freezing
Resistance is about 10K, measures the resistance between two probes more than 1M Europe after two probes are covered by ice completely.
Wherein, temperature sensor is also mounted on fixed support, passes the signal to central processing unit by connecting line.
Wherein, temperature sensor signal processing module includes resistance R1, resistance R2, resistance R3, resistance R6 and filter capacitor
First foot of C2, resistance R1 and first foot of resistance R2 joining power, the crus secunda of resistance R1 connects with first foot of resistance R3
Contact is received the network of central processing unit and is numbered first foot of A0.0, first foot of the crus secunda of resistance R2 and resistance R6 and filter
The first foot junction point of ripple electric capacity C2 is received the network of central processing unit and is numbered the crus secunda of PT1000, the crus secunda of resistance R3
With crus secunda and the crus secunda earth of filter capacitor C2 of resistance R6, wherein resistance R6 is variable resistance, corresponding to temperature
Sensor.
Wherein, ice thickness detector module includes resistance R4, resistance R8, resistance R5, resistance R7 and filter capacitor C3, resistance R4
First foot of the first foot and resistance R8 and joining power, the crus secunda of resistance R4 connects together with the first foot junction point of resistance R5
Network to central processing unit is numbered the first foot and the filter capacitor of the 3rd foot of A0.1, the crus secunda of resistance R8 and resistance R7
The junction point of first foot of C3 is received the network of central processing unit and is numbered the 4th foot of iecAD, the crus secunda of resistance R5 and electricity
The crus secunda of resistance R7 and the crus secunda earth of filter capacitor C3, wherein resistance R7 is variable resistance, corresponding to the first ice thickness
Resistance between probe and the second ice thickness probe.
Further, the first ice thickness probe and the second ice thickness probe are made up of two stainless steel metal rods.
Further, ice thickness detectable signal processing module and temperature sensor signal processing module are sent to central processing unit
Two voltage signals partner differential signal.
Further, also include wireless RENS communication module, dynamic for the icing amount measured in real time by measuring of ice thickness device
State signal is sent to host computer.
Further, the measuring of ice thickness device for Ice storage coiled pipe corrects the result of measurement by automatically calibrating zero point.
Device of the present utility model measures dynamic value and the temperature value of icing amount in real time, Dynamic Signal by wireless RENS
Communication module is sent to PC control software, and PC control software, by analyzing icing signal, obtains icing rate curve,
According to icing rate curve, adjust equipment operational factor and control strategy, reach the purpose of optimal control: energy consumption can be reduced,
And make equipment be in " healthy " running status as far as possible, with the service life of extension device.
Measuring of ice thickness device for Ice storage coiled pipe can obtain the signal of one group of consecutive variations measuring of ice thickness, can pass through
Automatically calibration " zero point " corrects the result of measurement, reaches the purpose accurately measured, can pass through temperature automatic correction compensation water
Electrical conductivity, from dynamic(al) correction measure result, reach the purpose accurately measured.
The beneficial effects of the utility model are: (1) simple in construction, low cost；(2) continuous print can be realized measure, can obtain
To the ice thickness information (ice storage amount) accurately controlling needs, it is ensured that the realization that maximum energy-saving controls.
Accompanying drawing explanation
Fig. 1: for the electrical structure schematic block diagram of the measuring of ice thickness device of Ice storage coiled pipe；
The measuring of ice thickness device probe of Fig. 2: Ice storage coiled pipe and temperature sensor mounting structure schematic diagram；
The circuit theory diagrams of the measuring of ice thickness device of Fig. 3: Ice storage coiled pipe.
Description of reference numerals:
1. central processing unit；2. temperature sensor signal processing module；
3. ice thickness detectable signal processing module；4. power module；
The most wireless RENS communication module；6. temperature sensor；
7. ice thickness detector；9. fixed support；
10. connecting line；11. buckles；
12. coil pipes；13. ice sheets；
14. first ice thickness probes；15. second ice thickness probes.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is specifically described.
Seeing accompanying drawing 1, the measuring of ice thickness device for Ice storage coiled pipe specifically includes that central processing unit 1, temperature sensor letter
Number processing module 2, ice thickness detectable signal processing module 3, power module 4, wireless RENS communication module 5, temperature sensor 6 and ice
Thick detector 7.During use, central processing unit 1 and temperature sensor signal processing module 2, ice thickness detectable signal processing module 3,
Power module 4 and wireless RENS communication module 5 electrically connect.Accompanying drawing 2 and accompanying drawing 3 are exactly concrete implementation detail.
The model that central processing unit 1 selects SILICON LAB S. A. to produce is C8051F350 single-chip microcomputer.In this single-chip microcomputer
Put tool 24AD transducer, and amplification can select 1 times, 2 times, 4 times, 8 times, 16 times, 32 times, 64 times, 128 times, measure logical
Road can be calibrated automatically, eliminates systematic error, can obtain the highest certainty of measurement, and this function this utility model just fills
Put required.
Fig. 3 is shown in by the circuit diagram of temperature sensor signal processing module 2, including resistance R1, resistance R2, resistance R3, resistance R6
With filter capacitor C2, wherein resistance R6 is variable resistance, namely the temperature sensor 6 in accompanying drawing 2, and select here is Shanghai
The PT1000 platinum resistance that nine trade finite instrument companies produce；The resistance value of PT1000 can change, zero degree with the change writing temperature
Time resistance be 1.000K.First foot of resistance R1 and first foot of resistance R2 joining power VCC (3.3V), the second of resistance R1
The first foot junction point of foot and resistance R3 receives first foot (network is numbered A0.0) of central processing unit 1, the second of resistance R2
Foot receives crus secunda (the network label of central processing unit 1 with first foot of resistance R6 and the first foot junction point of filter capacitor C2
For 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
R1, resistance R2 and resistance R3 are the high-accuracy resistance of 1K, it is desirable to precision is not more than 0.1%, and temperature drift coefficient is not more than 20PPm.Filter
The value of ripple electric capacity C2 requires as 100uf/6.3V.
The circuit of ice thickness detector module 3 correspondence as it is shown on figure 3, include resistance R4, resistance R8, resistance R5, resistance R7 and
Filter capacitor C3, wherein resistance R7 is variable resistance, namely the first ice thickness probe 14 and the second ice thickness probe 15 in accompanying drawing 2
Between resistance.Ice thickness detector is placed in Ice storage coiled pipe, can be full of water or ice between two probes, it is also possible to frozen water mixes
Thing, water is conduction, therefore can regard a resistance as, and the conductivity of ice is the lowest, can approximate and regard nonconducting as, can
To think that its resistance is the biggest.Along with water gradually build-ups ice, two probe portion are covered by ice, the ice layer thickness between two probes
Being gradually increased, the water of conduction will be fewer and feweri, and therefore the resistance between two probes is increasing, the electricity between two probes
Resistance refers to the measurement resistance between two probes, and in freezing process, this resistance is change.First ice thickness probe 14 He
Second ice thickness probe 15 is made up of two stainless steel metal rods, a diameter of 6mm, a length of 60mm, the distance of two probes
Being placed in parallel for 50mm, and be vertically fixed on fixed support 9, two probes to insulate with fixed support 9, as shown in Figure 2,
Increasing with writing icing thickness, the two ends up and down of the first ice thickness probe 14 and the second ice thickness probe 15 are gradually covered by ice simultaneously, (quilt
The probe portion resistance covered is very big, can be considered as insulation), the resistance of the first ice thickness probe 14 and the second ice thickness probe 15 just by
Step becomes big, and when waiting the surface that ice sheet is completely covered two probes, resistance can be considered as insulating in (more than 1M Europe), do not freeze
In the case of resistance be about this resistance of the 10K(concentration change with the temperature of medium and medium).First foot of resistance R4 with
First foot of resistance R8 joining power VCC (3.3V), the crus secunda of resistance R4 connects together with the first foot junction point of resistance R5
The first foot and filtered electrical to the 3rd foot (network is numbered A0.1) of central processing unit 1, the crus secunda of resistance R8 and resistance R7
The junction point of the first foot holding C3 receives the 4th foot (network is numbered iecAD) of central processing unit 1, the crus secunda of resistance R5 with
The crus secunda of resistance R7 and the crus secunda earth of filter capacitor C3, wherein resistance R4, resistance R8 and resistance R5 are 10K's
High-accuracy resistance, it is desirable to precision is not more than 0.1%, and temperature drift coefficient is not more than 20PPm.The value of filter capacitor C3 requires as 100uf/
6.3V。
As it is shown on figure 3, the circuit of power module 4 correspondence comprises transformator T1, filter capacitor C1 and filter capacitor C4, wherein
T1 selects the switch power module that model is SHB-2.5W-3.3 that Hangzhou Shan Bo Electronics Co., Ltd. produces, and this module is wide electricity
Pressure input (AC85V-260V), is output as the high-accuracy power supply of 3.3V.During use, the first foot and the crus secunda of T1 meet AC220V, T1
The 3rd foot be ground (GND), the 4th foot of T1 is power supply VCC (3.3V), for device of the present utility model provide power supply.Filtered electrical
First foot parallel connection of the first foot and filter capacitor C4 that hold C1 electrically connects with the 4th foot (VCC) of T1, the second of filter capacitor C1
The crus secunda parallel connection of foot and filter capacitor C4 electrically connects with the 3rd foot (GND) of T1, and the value of filter capacitor C1 requires as 1000uf/
6.3V, the value that filter capacitor goes out requires as 0.1uf.
The measuring principle of ice thickness detection is to utilize water and ice to have different electrical conductivity, and has the difference of more than 10 times,
During use as shown in Figure 2, the first ice thickness probe 14 and the second ice thickness probe 15, temperature sensor 6 and fixed support 9 are formed
Probe be fixed between two coil pipes 12 by buckle 11, in coil pipe 12 be full of industry ethylene glycol liquid, outside coil pipe 12 be
Air-conditioner circulating water, when in coil pipe 12 flowing be the ethylene glycol liquid of subzero 5 degree time, cold will be conducted to coil pipe by coil pipe
Water outside 12, the water outside coil pipe 12 starts to freeze, and ice can be gradually from the first ice thickness probe 14 and the second ice thickness probe 15
Upper and lower side covers surface, and the resistance between the first probe 14 and the second probe 15 will become larger, until two spies
Pin is the most capped.Probe 14,15 and temperature sensor 6 are passed the signal in circuit module by respective connecting line 10.
Measuring the resistance between two probes when not freezing is about 10K, measures and arrive after two probes are covered by ice completely
Resistance between two probes is more than 1M Europe, and the resistance R7 in ice thickness detectable signal processing module 3 is considered as the first ice thickness probe
14 and second variable resistances between ice thickness probe 15, it will be readily appreciated that this part processes circuit, central processing unit device 1 takes
Obtaining two voltage signal iecAD and A0.1, the two voltage signal can be considered as a pair differential signal, central processing unit 1(monolithic
Machine) signal can be selected to amplify 1 times, voltage signal iecAD and A0.1 differential signal are converted into one by 24 bit A/D converters
The binary number of individual 24, convenient generally for processing, take front 16 bits, it is also possible to regard a 0-ffffH as
16 system numbers, (changing into 10 system numbers is exactly 0-65535) is processed by data and demarcates, it is possible to obtain the value of an ice thickness
(resolving power removes 0.01mm).Because electrical conductivity of water is relevant to ion concentration, temperature etc. in liquid, it not a value determined,
Therefore need to calibrate zero point before measuring ice thickness.Zero point is calibrated conveniently when temperature of liquid is 3 degree according to experiment, the most permissible
Judging without freezing, and temperature myopia is in 0 degree, now the resistance value at probe two ends can regard the initial value of icing as, through central authorities
The ice thickness numerical value that processor 1 reads is considered as 0.00mm, i.e. calibrates zero point.Need to measure near ice thickness probe to calibrate zero point
Water temperature, the measurement of water temperature can be carried out by temperature sensor 6 and temperature sensor signal processing module 2, corresponding from accompanying drawing 3
Circuit it can be seen that measure temperature circuit with measurement ice thickness circuit essentially identical, temperature sensor signal processing module 2
In resistance R6 can regard the resistance of temperature control sensor as, temperature sensor here is PT1000 platinum resistance, and it is zero
Being 1K during point, when-20 spend, the resistance of temperature sensor is 921.992, and the resistance 30 degree of temperature sensors constantly hinders
Value is 1116.342.Resistance synopsis according to PT1000 can calculate the magnitude of voltage (PT1000) of correspondence, central processing unit 1
Temperature sensor PT100 0 and A0.0 forms a pair differential signal, exports 24 AD values of correspondence, namely after amplifying 4 times
It is converted into the binary number of 24, convenient generally for processing, take front 16 bits, it is also possible to regard one as
The 16 system numbers of 0-ffffH, (changing into 10 system numbers is exactly 0-65535) is processed by data and demarcates, it is possible to obtain one
Temperature values (resolving power goes 0.01 degree) etc. measure the ice thickness zero point correction carrying out ice thickness detection when temperature is 3 degree.Apply in reality
In the temperature that measures in addition to for ice thickness zero point correction, be additionally operable to monitor the water temperature in Ice Storage Tank, according to the height meter of water temperature
Calculate the cold needed, adjust equipment operational factor and control strategy, reach the purpose of optimal control.The purpose of optimal control is permissible
Reduce energy consumption, and make equipment be in " healthy " running status as far as possible, with the service life of extension device.
As preferred implementation of the present utility model, this utility model also includes wireless RWNS communication module 5, centre
Reason device 1 and wireless RWNS communication module 5 use I/O mode to electrically connect.Wireless RWNS communication module 5 is for the ice thickness value that will measure
It is sent to host computer with temperature value thus realizes wireless data teletransmission.It is raw that wireless RWNS communication module 5 can be selected for Lleida company
Produce LSDRF4310N03 wireless communication module, it with central processing unit 1 by there being 6 data lines to electrically connect.Such as 18 in Fig. 3
Shown in, the pin of the corresponding central processing unit 1 of the GD02 label being wherein connected with central processing unit 1 needs have outer interruption merit
Can, described wireless RWNS communication module 5 is for being sent to host computer by the ice thickness numerical value recorded and Temperature numerical.PC control
Software, by analyzing icing signal, obtains icing rate curve, according to icing rate curve, adjusts equipment operational factor and control
Strategy, reaches the purpose of optimal control.The purpose of optimal control can reduce energy consumption, and makes equipment be in " healthy " as far as possible
Running status, with the service life of extension device.
Claims (10)
1. for a measuring of ice thickness device for Ice storage coiled pipe, including: central processing unit (1), temperature sensor signal process mould
Block (2), ice thickness detectable signal processing module (3), temperature sensor (6), ice thickness detector (7) and power module (4), temperature
Sensor signal processing module (2) receives the temperature signal that temperature sensor (6) detects, and sends into centre after carrying out signal processing
Reason device (1)；Ice thickness detectable signal processing module (16) receives the signal relevant to ice thickness that ice thickness detector (7) detects, and carries out
Central processing unit (1) is sent into after signal processing.
Measuring of ice thickness device for Ice storage coiled pipe the most according to claim 1, it is characterised in that: ice thickness detector (7)
Including the first ice thickness probe (14), the second ice thickness probe (15), fixed support (9) and buckle (11), the first ice thickness probe (14)
Being parallel to each other with the second ice thickness probe (15), two ends are all vertically fixed on two fixed supports (9), probe and fixed support
(9) insulation, fixed support (9) is fixed between two coil pipes (12) by buckle (11), is visited by probe by connecting line (10)
The signal surveyed is sent to central processing unit (1).
Measuring of ice thickness device for Ice storage coiled pipe the most according to claim 2, it is characterised in that: along with ice gradually from
The upper and lower side of one ice thickness probe (14) and the second ice thickness probe (15) covers surface, the first ice thickness probe (14) and second
Resistance between ice thickness probe (15) will become larger, and measuring the resistance between two probes when not freezing is that 10K is left
The right side, measures the resistance between two probes more than 1M Europe after two probes are covered by ice completely.
Measuring of ice thickness device for Ice storage coiled pipe the most according to claim 2, it is characterised in that: temperature sensor (6)
It is also mounted on fixed support (9), passes the signal to central processing unit (1) by connecting line (10).
5. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 1-4, it is characterised in that: temperature passes
Sensor signal processing module (2) includes resistance R1, resistance R2, resistance R3, resistance R6 and filter capacitor C2, first foot of resistance R1
With the first foot the joining power of resistance R2, the first foot junction point of the crus secunda of resistance R1 and resistance R3 is received model and is
The network of the central processing unit (1) of C8051F350 is numbered first foot of A0.0, the crus secunda of resistance R2 and the first of resistance R6
The first foot junction point of foot and filter capacitor C2 is received the network of central processing unit (1) and is numbered the crus secunda of PT1000, resistance
The crus secunda of the crus secunda of R3 and resistance R6 and the crus secunda earth of filter capacitor C2, wherein resistance R6 is variable resistance,
Corresponding to temperature sensor (6).
6. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 1-4, it is characterised in that: Qi Zhongbing
Thick detector module (3) includes resistance R4, resistance R8, resistance R5, resistance R7 and filter capacitor C3, first foot of resistance R4 and electricity
First foot of resistance R8 joining power, the crus secunda of resistance R4 is received model together with the first foot junction point of resistance R5 and is
The network of the central processing unit (1) of C8051F350 is numbered the 3rd foot of A0.1, the crus secunda of resistance R8 and the first of resistance R7
The junction point of first foot of foot and filter capacitor C3 is received the network of central processing unit (1) and is numbered the 4th foot of iecAD, resistance
The crus secunda of the crus secunda of R5 and resistance R7 and the crus secunda earth of filter capacitor C3, wherein resistance R7 is variable resistance,
Corresponding to the resistance between the first ice thickness probe (14) and the second ice thickness probe (15).
7. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 2-4, it is characterised in that: the first ice
Thick probe (14) and the second ice thickness probe (15) are made up of two stainless steel metal rods.
8. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 1-4, it is characterised in that: ice thickness is visited
Survey signal processing module (3) and temperature sensor signal processing module (2) are sent to two voltage signals of central processing unit (1)
Partner differential signal.
9. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 1-4, it is characterised in that: also include
Wireless RENS communication module (5), the Dynamic Signal of the icing amount for being measured in real time by measuring of ice thickness device is sent to host computer.
10. according to the measuring of ice thickness device for Ice storage coiled pipe described in any one of claim 1-4, it is characterised in that: it is used for
The measuring of ice thickness device of Ice storage coiled pipe corrects the result of measurement by calibration zero point automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157954.8U CN205593481U (en) | 2016-03-02 | 2016-03-02 | A ice thickness measuring device for ice -reserving coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620157954.8U CN205593481U (en) | 2016-03-02 | 2016-03-02 | A ice thickness measuring device for ice -reserving coil pipe |
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| Publication Number | Publication Date |
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| CN205593481U true CN205593481U (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620157954.8U Active CN205593481U (en) | 2016-03-02 | 2016-03-02 | A ice thickness measuring device for ice -reserving coil pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918283A (en) * | 2017-04-10 | 2017-07-04 | 杭州源牌科技股份有限公司 | A kind of measurement apparatus of ice storage unit ice thickness, measuring system and measuring method |
-
2016
- 2016-03-02 CN CN201620157954.8U patent/CN205593481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918283A (en) * | 2017-04-10 | 2017-07-04 | 杭州源牌科技股份有限公司 | A kind of measurement apparatus of ice storage unit ice thickness, measuring system and measuring method |
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