CN2569109Y - Digital display type refrigerating fluid flowmeter - Google Patents
Digital display type refrigerating fluid flowmeter Download PDFInfo
- Publication number
- CN2569109Y CN2569109Y CN 02238679 CN02238679U CN2569109Y CN 2569109 Y CN2569109 Y CN 2569109Y CN 02238679 CN02238679 CN 02238679 CN 02238679 U CN02238679 U CN 02238679U CN 2569109 Y CN2569109 Y CN 2569109Y
- Authority
- CN
- China
- Prior art keywords
- refrigerating fluid
- flowmeter
- digital display
- display type
- type refrigerating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The digital display type refrigerating fluid flowmeter is an electronic instrument device which utilizes electromagnetic sensing technology and electronic technology to count and display the flow of refrigerating fluid. The copper material is used as a main body, a sensor internally provided with an electromagnetic inductor converts the flow of the refrigerating fluid into an electric signal, the electric signal is input into a CPU, and the electric signal is converted into a number after being processed and reflected on a Liquid Crystal Display (LCD) or a semiconductor nixie tube (LED).
Description
The utility model digital display type refrigerating fluid flowmeter is a kind of Electronic apparatus that utilizes electromagnetic sensing technology, electronic technology the refrigerating fluid flow to be counted demonstration.
The refrigeration medium (refrigerating fluid) that refrigeration plant such as air-conditioning, refrigerator adopted is used more widely, and kind carries out the transition to comparatively popular green refrigerant R134, R600a at present gradually from original R12, R22, R502 etc.This is the preserve our planet a kind of effort and the progress of environment of the mankind.Simultaneously, exactly for refrigeration plant charges refrigerating fluid, stop the wasting of resources, invalid releasing, the protection ozonosphere improves earth environment and seems more real and urgent.
At present.For refrigeration machine charges refrigerating fluid, great majority adopt tensimeter, compressor current, the muffler condensation situation etc. of observing.It is suitable to judge roughly by rule of thumb whether refrigerating fluid charges, and this method must possess rich practice experience, and causes easily and charge the bigger waste of liquid measure error.Also have weight method and graduated cylinder liquid feeding method that refrigerating fluid is measured in addition, weight method trouble and original is because of the loaded down with trivial details and less employing of formality, graduated cylinder is then because of mostly being the plastic and glass goods, and refrigerating fluid self possesses elevated pressures, is easy to generate explosion, security performance is relatively poor, is difficult to popularize.Is there there a kind of safe and convenient metering outfit that charges accurately? air-conditioning, refrigerator relate to huge numbers of families, and the environment of preserving our planet protects our home meaning very great.
The purpose of this utility model provides a kind of convenience, accurate, practical safe refrigerating fluid flow device.It partly forms (seeing Figure of description 1) by two, and electromagnetic induction sensor 2 becomes numeral to show with the electrical signal conversion that sensor is obtained main circuit constitutes.When refrigerating fluid flows through, convert weight (unit: gram) data are shown from liquid crystal display LCD or semiconductor LED1 to according to its liquid measure that flows through in sensor.Two provides import and outlet, operates very simply, by conventional liquid-feeding tube entrance point is received in the refrigerating fluid source, and application apparatuss such as air-conditioning, refrigerator are received endpiece, and Open valve can be read the liquid measure that flows through from the flowmeter screen.Because of refrigerating fluid exists gas, liquid two states, digital display type refrigerating fluid flowmeter can also convert by program air-flow and liquid stream are adjusted automatically.
Digital display type refrigerating fluid flowmeter is formed (as shown in drawings) by sensor and main circuit two major parts.Fig. 1 is the flowmeter outside drawing, is the matching relationship of sensor 2 and plastic casing 3 and display screen 1 shown in the figure.
Sensor 2 main materials are made of copper, and its objective is in order to bear refrigerating fluid up to 1.5MPa pressure and antirust corrosion-resistant, nonmagnetic interference.There is the impeller of a rotation sensor 2 inside, a little magnet steel is housed on this impeller, or a certain blade of impeller has magnetic, impeller is subjected to inlet velocity power and rotates, in rotation process, magnetic blade or little magnet steel provide a signal for fixing magnetic signal sensing, and this Magnetic Sensor is by handling, to main circuit output electric signal.Like this, when flow velocity was high, wheel speed was fast, and the data reflection is also faster, and when flow velocity was slow, wheel speed was slow, and data presentation is also slow.
Fig. 2 is the utility model main circuit, sensor signal is imported central processing unit from data port, this is a single chip circuit, here choose 89C2051 as CPU, by program sensor signal is adjusted, counted so, then by reading RD, write WR control, send data with serial mode from the liquid crystal display of the inside tape drive of DATA data line.Or take a plurality of ports to send data to LCD liquid crystal display 1 or LED semiconductor 1 with parallel mode, it is shown.K1 is a closing key among the figure, presses K1 once, and system is in holding state.K2 is a startup/reset switch, presses K2 and can make the machine start, and make the screen reset, behind native system employing liquid crystal display mode expression data, can take the direct current supply form so, and available dry cell is powered, and its power consumption is very little.
In sum, numeral show the refrigerating fluid flowmeter have conveniently, practical, accurately, advantage such as safety, to stopping the wasting of resources, the environment of preserving our planet has great realistic significance.
Claims (7)
1, a kind of digital display type refrigerating fluid flowmeter, it is characterized in that: this flowmeter is made up of plastic casing 3, electromagnetic sensor 2, single chip circuit and LCD LCDs or LED semiconductor 1.
2, by the described digital display type refrigerating fluid of claim 1 flowmeter, it is characterized in that: its electromagnetic sensor main body is made of copper material, have in sensor main body inside one for the refrigerating fluid circulation directly to latus rectum.
3, by the described digital display type refrigerating fluid of claim 2 flowmeter, it is characterized in that: in its electromagnetic sensor, there is the impeller that for a moment rotates at the latus rectum middle part, and impeller a bit is equipped with a little magnet steel.
4, by the described digital display type refrigerating fluid of claim 2 flowmeter, it is characterized in that: its electromagnetic sensor directly has M12 * 1.25 hickeys 4 to passage two, and a restrictor 5 is installed in the outbound port.
5, by the described digital display type refrigerating fluid of claim 4 flowmeter, it is characterized in that: its restrictor is the socket head cap screw of-M5, and there is the small through hole of a φ 1.2--φ 1.4 centre.
6, by the described digital display type refrigerating fluid of claim 1 flowmeter, it is characterized in that: its data show by LCD LCD or semiconductor.
7, by the described digital display type refrigerating fluid of claim 7 flowmeter, it is characterized in that: its data transmit data by serial line interface JP1 to display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238679 CN2569109Y (en) | 2002-06-12 | 2002-06-12 | Digital display type refrigerating fluid flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02238679 CN2569109Y (en) | 2002-06-12 | 2002-06-12 | Digital display type refrigerating fluid flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2569109Y true CN2569109Y (en) | 2003-08-27 |
Family
ID=33712304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02238679 Expired - Fee Related CN2569109Y (en) | 2002-06-12 | 2002-06-12 | Digital display type refrigerating fluid flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2569109Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159785A1 (en) * | 2012-04-24 | 2013-10-31 | Carabajal Sergio Martin Sergio | Spectacles having a built-in computer |
| CN110140031A (en) * | 2016-10-19 | 2019-08-16 | 美得泰克医疗有限公司 | Electronic flowmeter with adjuster |
-
2002
- 2002-06-12 CN CN 02238679 patent/CN2569109Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159785A1 (en) * | 2012-04-24 | 2013-10-31 | Carabajal Sergio Martin Sergio | Spectacles having a built-in computer |
| CN110140031A (en) * | 2016-10-19 | 2019-08-16 | 美得泰克医疗有限公司 | Electronic flowmeter with adjuster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |