CN202305061U - Ultrasonic calorimeter with temperature compensation function - Google Patents
Ultrasonic calorimeter with temperature compensation function Download PDFInfo
- Publication number
- CN202305061U CN202305061U CN2011204056493U CN201120405649U CN202305061U CN 202305061 U CN202305061 U CN 202305061U CN 2011204056493 U CN2011204056493 U CN 2011204056493U CN 201120405649 U CN201120405649 U CN 201120405649U CN 202305061 U CN202305061 U CN 202305061U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic transducer
- flowmeter
- calorimeter
- inlet
- ultrasonic
- 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 - Lifetime
Links
Images
Landscapes
- Details Of Flowmeters (AREA)
Abstract
The utility model mainly provides an ultrasonic calorimeter with a temperature compensation function. The ultrasonic calorimeter consists of a calorimeter (1), an integrator (2), a flowmeter (3), an inflow water temperature sensor (7), a return water temperature sensor (8) and a communication line (9), wherein the flowmeter (3) comprises an inlet ultrasonic transducer (5) and an outlet ultrasonic transducer (4); the flowmeter (3) is connected with the integrator (2) through a flowmeter lead-out line (6); the housing of the inlet ultrasonic transducer (5) is a brass casing (16) with a transducer piezoceramic piece (17) bonded on the bottom surface; an inlet ultrasonic transducer lead wire (15) is connected to the inlet ultrasonic transducer (5); a thermistor lead wire (13) is connected to a thermistor (19); and pouring sealant (20) is filled in the empty part of the chamber of the inlet ultrasonic transducer (5). Owing to the temperature compensation function of the ultrasonic calorimeter, the metering accuracy is improved.
Description
Technical field
The utility model relates to the calorimetry instrument; Be particularly related to a kind of calorimeter; A kind of specifically ultrasonic calorimeter is mainly used in residential quarters, the central heating of industrial and mineral institutes is measured the thermal energy consumption of its residential customer, and with the clearing that carry on trade of these data.
Background technology
The family is brought into use in property sub-district, industrial and mining enterprises, school and public institution with calorimeter at present.Calorimeter is by flowmeter, temperature sensor, and integraph (computing circuit) is formed.Flowmeter mainly is to gather flow signal to send integraph to; Temperature sensor is gathered user's water supply and return water temperature, sends temperature signal to integraph; Integraph is receiving that flow meter signal and temperature signal carry out heat Calculation, and then adds up, and obtains the data that the user uses heat.
Main application is the mechanical type calorimeter on the market, and the flowmeter of mechanical type calorimeter is resistant to elevated temperatures water meter; Temperature sensor is made up of the RTD of two pairings.But mechanical type calorimeter failure rate in user's use is very high; The fault main cause is that heat supply department is added with antioxidant and the black dyes that prevents that pipeline from getting rusty in water; Also have flax silk, iron pin, sandstone piece in the recirculated water in the pipeline; Stop up or etching mechanism formula calorimeter through regular meeting, cause the mechanical type calorimeter in long-term use, can not measure or measure inaccurate.
Ultrasonic calorimeter obtained using in recent years, and flowmeter is a ultrasonic flow meter.Though the flowmeter of existing ultrasonic calorimeter can prevent to be prone to stop up and corrosion-prone problem effectively; But characteristic because of transfer voice in the water; Determined sound transmitting speed under different water temperatures that very big difference is arranged, so when the heat supply water temperature changed, the flight time of sound between two ultrasonic transducers was different; Can cause integraph that the flow velocity of heat supply current is calculated the generation deviation, finally cause the inaccurate of heat Calculation.The temperature compensation of heat supply water velocity is if adopt the measured temperature of inflow temperature sensor to compensate; The inflow temperature sensor is put into calibration cell when production run and technical supervision department calibrating so; Measured temperature value is not the current temperature in the flowmeter, and it is accurate to cause temperature compensation to lose; Also might be installed on water return pipeline by ultrasonic calorimeter; The inflow temperature sensor is installed on the Temp. measuring ball valve; And be installed in the inlet channel, and the return water temperature sensor is installed on the flowmeter, the measured temperature value of inflow temperature sensor is not the current temperature in the flowmeter like this; Can cause and to carry out temperature compensation, make final heat metering overproof.
The utility model content
The purpose of the utility model is to overcome the in use existing weak point of above-mentioned existing ultrasonic calorimeter; The measuring method of current temperature in a kind of novel flowmeter is provided; To solve the existing thermometric problem of ultrasonic calorimeter current, the temperature compensation of carrying out ultrasonic calorimeter is to improve the metering accuracy of ultrasonic calorimeter.
A kind of ultrasonic calorimeter with temperature compensation is made up of calorimeter, integraph, flowmeter, inflow temperature sensor, return water temperature sensor, connection; Wherein flowmeter comprises inlet ultrasonic transducer and outlet ultrasonic transducer, and this flowmeter is connected with integraph through the flowmeter extension line.
Above-mentioned a kind of ultrasonic calorimeter with temperature compensation; Wherein the shell in the inlet ultrasonic transducer is the brass housing; The bottom surface of inlet ultrasonic transducer is bonded with the transducer piezoelectric ceramic piece; The another side of transducer piezoelectric ceramic piece is close to the transducer matching layer, and slice heat sensitive resistor is pasted on the wall of brass housing, and inlet ultrasonic transducer lead-in wire is connected on the inlet ultrasonic transducer; The thermistor lead-in wire is connected on the thermistor, and idle component is marked with casting glue in the chamber of inlet ultrasonic transducer 5.
Compared with prior art, the advantage of the utility model is:
1. owing to adopt independently current temperature measurement unit, and do not rely on the measured temperature of inflow temperature sensor, make that the measurement of temperature is more accurately reliable.
2. owing to adopt the thermosensitive resistance measurement water temperature, in this thermistor dress flowmeter, so temperature is the temperature of current in the flowmeter, can be used for the compensation of flow velocity, makes temperature sensor place the effect that does not influence the heat metering precision arbitrarily.
Description of drawings
Fig. 1 is the on-the-spot scheme of installation of the utility model ultrasonic calorimeter;
Fig. 2 is the flowmeter synoptic diagram of the utility model ultrasonic calorimeter;
Fig. 3 is the inlet ultrasonic transducer structural representation of the utility model ultrasonic calorimeter.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of ultrasonic calorimeter with temperature compensation of the utility model mainly is made up of calorimeter 1, integraph 2, flowmeter 3, inflow temperature sensor 7, return water temperature sensor 8, connection 9.Flowmeter 3 comprises inlet ultrasonic transducer 5 and outlet ultrasonic transducer 4.The shell of ultrasonic transducer 5 of wherein entering the mouth is brass housings 16; The bottom surface of inlet ultrasonic transducer 5 is bonded with transducer piezoelectric ceramic piece 17; The another side of transducer piezoelectric ceramic piece 17 is close to transducer matching layer 18; Slice heat sensitive resistor 19 is pasted on the wall of brass housing 16; Inlet ultrasonic transducer lead-in wire 15 is connected on the inlet ultrasonic transducer 5, and thermistor lead-in wire 13 is connected on the thermistor 19, and idle component is marked with casting glue 20 in the chamber of inlet ultrasonic transducer 5.Outlet ultrasonic transducer 4 is provided with outlet ultrasonic transducer lead-in wire 14, and thermistor lead-in wire 13, inlet ultrasonic transducer lead-in wire 15 and outlet ultrasonic transducer lead-in wire 14 are connected on the flowmeter extension line 6.Transmitting-receiving through flowmeter extension line 6 control inlet ultrasonic transducers 5 and outlet ultrasonic transducer 4; Make its these those receipts; That these receipts again; This flowmeter extension line 6 is connected with integraph 2 to be handled the signal of receiving, calculates the mistiming of twice transmitting-receiving, and then calculates the speed of current in the pipeline.
The telecommunication physical channel of the ultrasonic calorimeter of a kind of temperature compensation of the utility model indication can be RS485 or M-BUS; And through connection 9 realization computer remote communications; Can on far-end computer, show: heat accumulative, integrated flow, flow velocity, water inlet temperature, water delivering orifice temperature, go into out information such as water temperature difference, the centralized automatic meter-reading of system must be accomplished through connection 9; Through regulating the size of shut-off valve 12 control water supply flows, make to reach suitable temperature in the room, thereby reach environmental protection, purpose of energy saving.And can cut off the water supply in filter rinsed 11 or when changing calorimeter 1, conveniently operate, thereby reach convenient, environmental protection, purpose of energy saving.Filtrator 11 is installed on the water inlet of flowmeter 3, flows through flowmeter 3 to prevent excessive foreign matter.
Claims (3)
1. the ultrasonic calorimeter with temperature compensation is made up of calorimeter (1), integraph (2), flowmeter (3), inflow temperature sensor (7), return water temperature sensor (8), connection (9); It is characterized in that flowmeter (3) comprises inlet ultrasonic transducer (5) and outlet ultrasonic transducer (4), this flowmeter (3) is connected with integraph (2) through flowmeter extension line (6).
2. a kind of ultrasonic calorimeter described in the claim 1 with temperature compensation; The shell of ultrasonic transducer (5) of it is characterized in that entering the mouth is brass housing (16); The bottom surface of inlet ultrasonic transducer (5) is bonded with transducer piezoelectric ceramic piece (17); The another side of transducer piezoelectric ceramic piece (17) is close to transducer matching layer (18), and slice heat sensitive resistor (19) is pasted on the wall of brass housing (16), and inlet ultrasonic transducer lead-in wire (15) is connected on the inlet ultrasonic transducer (5); Thermistor lead-in wire (13) is connected on the thermistor (19), and idle component is marked with casting glue (20) in the chamber of inlet ultrasonic transducer 5.
3. a kind of ultrasonic calorimeter described in the claim 2 with temperature compensation; It is characterized in that having outlet ultrasonic transducer lead-in wire (14), thermistor lead-in wire (13), inlet ultrasonic transducer lead-in wire (15) and outlet ultrasonic transducer lead-in wire (14) are connected on the flowmeter extension line (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204056493U CN202305061U (en) | 2011-10-21 | 2011-10-21 | Ultrasonic calorimeter with temperature compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204056493U CN202305061U (en) | 2011-10-21 | 2011-10-21 | Ultrasonic calorimeter with temperature compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305061U true CN202305061U (en) | 2012-07-04 |
Family
ID=46373936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204056493U Expired - Lifetime CN202305061U (en) | 2011-10-21 | 2011-10-21 | Ultrasonic calorimeter with temperature compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305061U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734864A (en) * | 2012-07-16 | 2012-10-17 | 威海震宇智能科技有限公司 | Remote automatic water stealing and leakage prevention control system |
| CN104729603A (en) * | 2015-03-10 | 2015-06-24 | 沈阳市航宇星仪表有限责任公司 | Ultrasonic thermo-sensitive temperature measuring device |
| CN105548594A (en) * | 2015-12-07 | 2016-05-04 | 重庆多邦科技股份有限公司 | Surface flow velocity sensor |
-
2011
- 2011-10-21 CN CN2011204056493U patent/CN202305061U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734864A (en) * | 2012-07-16 | 2012-10-17 | 威海震宇智能科技有限公司 | Remote automatic water stealing and leakage prevention control system |
| CN104729603A (en) * | 2015-03-10 | 2015-06-24 | 沈阳市航宇星仪表有限责任公司 | Ultrasonic thermo-sensitive temperature measuring device |
| CN105548594A (en) * | 2015-12-07 | 2016-05-04 | 重庆多邦科技股份有限公司 | Surface flow velocity sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sood et al. | Design and development of automatic water flow meter | |
| CN106441520A (en) | Method for calibrating precision of small-caliber ultrasonic water meter and calibration system thereof | |
| CN105758478A (en) | Stainless-steel ultrasonic water meter | |
| CN112179431B (en) | Gas flowmeter | |
| CN202305061U (en) | Ultrasonic calorimeter with temperature compensation function | |
| CN102354416B (en) | Prepayment temperature control ultrasonic calorimeter | |
| CN103591994B (en) | A kind of high-precision flow measurement mechanism that is not subject to such environmental effects | |
| CN201583365U (en) | Heat meter based on dynamic throttling element flow meter | |
| CN212988475U (en) | Gas flowmeter | |
| CN102967335A (en) | Micro-thermal type fuel gas meter | |
| CN205506140U (en) | Stainless steel ultrasonic water meter | |
| Huang | City natural gas metering | |
| CN105758477A (en) | Wireless valve control ultrasonic water meter | |
| CN204596017U (en) | Remote-control intelligent mass rate gas meter, flow meter | |
| CN201672996U (en) | Ultrasonic heat meter | |
| US11512990B2 (en) | Gas meter with thermal time-of-flight sensing | |
| CN102706485A (en) | Ultrasonic heat meter with double flowmeters | |
| CN201251490Y (en) | Cold and hot energy integrating instrument | |
| CN202614425U (en) | Double-flowmeter ultrasonic calorimeter | |
| CN202677516U (en) | Prepaid ultrasonic wave heat meter | |
| CN102768086A (en) | Remote meter reading heat allocation system and method | |
| CN205506141U (en) | Wireless valve accuse ultrasonic water meter | |
| CN204043821U (en) | Based on ultrasonic flowmeter pipeline section and the application thereof of triangle reflected version | |
| CN201233286Y (en) | Ultrasonic thermal metering device | |
| CN206056692U (en) | A kind of MEMS thermal mass gas meter, flow meters equipped with many bypass measurement apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |