CN201672996U - Ultrasonic heat meter - Google Patents

Ultrasonic heat meter Download PDF

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Publication number
CN201672996U
CN201672996U CN2010201791341U CN201020179134U CN201672996U CN 201672996 U CN201672996 U CN 201672996U CN 2010201791341 U CN2010201791341 U CN 2010201791341U CN 201020179134 U CN201020179134 U CN 201020179134U CN 201672996 U CN201672996 U CN 201672996U
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CN
China
Prior art keywords
module
temperature sensor
calorimeter
current transducer
transducer
Prior art date
Application number
CN2010201791341U
Other languages
Chinese (zh)
Inventor
左晔
邢新军
Original Assignee
左晔
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 左晔 filed Critical 左晔
Priority to CN2010201791341U priority Critical patent/CN201672996U/en
Application granted granted Critical
Publication of CN201672996U publication Critical patent/CN201672996U/en

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Abstract

The utility model relates to an ultrasonic heat meter, which is characterized in that a heat meter control circuit in the interior of the heat meter consists of a singlechip, a time detection and temperature sampling module, an ultrasonic driver and receiver module, a downstream transducer, an upstream transducer, a water inlet temperature sensor, a water outlet temperature sensor, a display module, a key module, a memory module and an infrared communication module, wherein the singlechip is connected with the time detection and temperature sampling module, the display module, the key module, the memory module and the infrared communication module respectively through I/O interfaces, the time detection and temperature sampling module is connected with the ultrasonic driver and receiver module, the water inlet temperature sensor and the water outlet temperature sensor, and the ultrasonic driver and receiver module is connected with the downstream transducer and the upstream transducer. By adopting the singlechip, the time detection and temperature sampling module, the transducers and temperature sensing technology, the utility model realizes high-precision heat metering, and has characteristics of high metering precision, reliable installation, convenient installation and use, and the like.

Description

Ultrasonic calorimeter

Technical field

The utility model belongs to the calorimeter field, especially a kind of ultrasonic calorimeter.

Background technology

At present, in the heat supply field, use calorimeter to carry out heat metering usually.Existing calorimeter mainly is divided into three types of mechanical type, electromagnetic type and ultrasonic types, and the mechanical type calorimeter is had relatively high expectations to heating medium, need filtrator be installed in inside, and its crushing is bigger; The electromagnetic type calorimeter has higher requirements to the conductivity of heating medium, and its complex structure, cost be higher, be subjected to electromagnetic interference (EMI) easily; Ultrasonic calorimeter is surveyed the current technology with ultrasound wave and is measured, and is more advanced calorimeter at present, but its measuring speed is had relatively high expectations, existing circuit signal is handled out of true, measuring accuracy is not high.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, proposes a kind of reasonable in design, ultrasonic calorimeter that can effectively improve measuring accuracy.

The utility model solves its technical matters and takes following technical scheme to realize:

A kind of ultrasonic calorimeter, comprise calorimeter control circuit and power module, power module is connected with the calorimeter control circuit and is its power supply, the calorimeter control circuit is by single-chip microcomputer, time detecting and temperature sampling module, ultrasound wave drives and receiver module, the following current transducer, the adverse current transducer, the inflow temperature sensor, the leaving water temperature sensor, display module, key-press module, memory module and infrared communication module constitute, single-chip microcomputer is respectively by I/O interface and time detecting and temperature sampling module, display module, key-press module, memory module and infrared communication module are connected, time detecting and temperature sampling module and ultrasound wave drive and receiver module, inflow temperature sensor and leaving water temperature sensor are connected, ultrasound wave driving and receiver module and following current transducer, the adverse current transducer is connected.

And described single-chip microcomputer also connects a low voltage detecting module by the I/O interface.

And described time detecting and temperature sampling module adopt the TDC-GP2 time-to-digit converter.

And described following current transducer and adverse current transducer all adopt piezoelectric ceramic transducer, and described inflow temperature sensor and leaving water temperature sensor all adopt accurate pairing platinum resistance.

And described memory module adopts eeprom memory.

Advantage of the present utility model and good effect are:

1, this ultrasonic calorimeter organically is integrated together single-chip microcomputer, time detecting and temperature sampling module, transducer, temperature sensor, time detecting and temperature sampling module can be measured two transducers and send and receive two different times that ultrasound wave propagates and return to single-chip microcomputer in the following current of medium and adverse current, and single-chip microcomputer is the flow velocity and the flow of calculation medium thus; The temperature sensor that is installed in water inlet and water delivering orifice is gathered inflow temperature and leaving water temperature respectively and is returned to single-chip microcomputer, calculates heat by single-chip microcomputer.Owing to adopt high speed time detecting and temperature sampling module, high-quality piezoelectric ceramic transducer to match platinum resistance as temperature sensor, guaranteed the measuring accuracy of calorimeter and the stability of work as transducer and precision.

2, this ultrasonic calorimeter is equipped with infrared communication module and handheld reading meter device communicates, and the data of its storage inside can be sent to handheld reading meter device, has alleviated the working strength of the person of checking meter, and is convenient to the measuring control of heat supply department.

3, this ultrasonic calorimeter is provided with display module and can shows in real time with enthusiasm condition and various information, makes the user have clearly the hot state of oneself usefulness and understand that the while also is convenient to maintainer's maintenance.

4, this ultrasonic calorimeter is provided with low voltage detecting module battery electric quantity is detected, and provides warning when battery electric quantity is not enough, has guaranteed the safety and precise operation of calorimeter.

5, the utility model is reasonable in design, it organically is integrated together single-chip microcomputer, time detecting and temperature sampling module, transducer, temperature sensor and has realized the high precision heat metering, have measuring accuracy height, characteristics such as safe and reliable, easy to install, can be widely used in during the heat metering management uses.

Description of drawings

Fig. 1 is a control circuit block scheme of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is further described.

A kind of ultrasonic calorimeter as shown in Figure 1, comprises calorimeter control circuit and power module, and power module is connected with the calorimeter control circuit and is its power supply, and this calorimeter adopts lithium battery power supply.This calorimeter control circuit is made of single-chip microcomputer, time detecting and temperature sampling module, ultrasound wave driving and receiver module, following current transducer, adverse current transducer, inflow temperature sensor, leaving water temperature sensor, display module, key-press module, memory module, infrared communication module and low voltage detecting module.Single-chip microcomputer inside presets that heat detects and control program is used to coordinate the work of whole calorimeter control circuit; Display module can explicit user consumption boom value etc. in information, the heating system parameter such as temperature, instantaneous delivery, the accumulation water yield and for the various parameters of repaired; Memory module can write down the various data in the calorimeter metering; Infrared communication module can communicate with the handheld reading meter device of outside, and the data of its storage inside are sent to handheld reading meter device, and low voltage detecting module detects battery electric quantity, and warning is provided when battery electric quantity is not enough.Its concrete annexation is: single-chip microcomputer is connected with temperature sampling module, display module, key-press module, memory module, infrared communication module and low voltage detecting module with time detecting by the I/O interface respectively, time detecting is connected with receiver module, inflow temperature sensor and leaving water temperature sensor with the ultrasound wave driving with the temperature sampling module, and the ultrasound wave driving is connected with following current transducer, adverse current transducer with receiver module.In the present embodiment, described single-chip microcomputer adopts the MSP430F413 chip of TIX, described time detecting and temperature sampling module adopt the TDC-GP2 time-to-digit converter of German ACAM company, described following current transducer and adverse current transducer all adopt piezoelectric ceramic transducer, described inflow temperature sensor and leaving water temperature sensor all adopt the precision pairing platinum resistance PT1000 of Germany luxuriant company of a specified duration, described ultrasound wave driving and receiver module are by signal amplifier, two-way signaling switch and Schmidt's not gate etc. connect and compose, described infrared communication module adopts infrared receiving/transmission diode and infrared transmission to drive triode and connects and composes, described display module adopts LCD MODULE, memory module adopts the eeprom memory 24C04 of American ATMEL, and described low voltage detecting module adopts the R3111H281CA of NSK company.

The principle of work of this ultrasonic calorimeter is: the calorimeter control circuit carries out the heat testing under the control of single-chip microcomputer, time detecting and temperature sampling module adopt the accurate chip of high-speed dedicated and carry out the sampled measurements of flow and temperature under Single-chip Controlling, time difference method is adopted in flow measurement, time detecting and temperature sampling module can be measured two transducers and send and receive two different times that ultrasound wave propagates and return to single-chip microcomputer in the following current of medium and adverse current, and single-chip microcomputer is the flow velocity and the flow of calculation medium thus; The temperature sensor that is installed in water inlet and water delivering orifice is gathered inflow temperature and leaving water temperature respectively and is returned to single-chip microcomputer, calculates heat by single-chip microcomputer.The calculating of heat is adopted by the inflow temperature value and is adopted linear interpolation method by 0~100 ℃ of density meter Fluid Computation quality, by advance, return water temperature adopts the piecewise linear interpolation method to calculate heat by 0~100 ℃ of enthalpy table.

It is emphasized that; embodiment described in the utility model is illustrative; rather than it is determinate; therefore the utility model is not limited to the embodiment described in the embodiment; every by those skilled in the art according to other embodiments that the technical solution of the utility model draws, belong to the scope of the utility model protection equally.

Claims (5)

1. ultrasonic calorimeter, comprise calorimeter control circuit and power module, power module is connected with the calorimeter control circuit and is its power supply, it is characterized in that: the calorimeter control circuit is by single-chip microcomputer, time detecting and temperature sampling module, ultrasound wave drives and receiver module, the following current transducer, the adverse current transducer, the inflow temperature sensor, the leaving water temperature sensor, display module, key-press module, memory module and infrared communication module constitute, single-chip microcomputer is respectively by I/O interface and time detecting and temperature sampling module, display module, key-press module, memory module and infrared communication module are connected, time detecting and temperature sampling module and ultrasound wave drive and receiver module, inflow temperature sensor and leaving water temperature sensor are connected, ultrasound wave driving and receiver module and following current transducer, the adverse current transducer is connected.
2. ultrasonic calorimeter according to claim 1 is characterized in that: described single-chip microcomputer also connects a low voltage detecting module by the I/O interface.
3. ultrasonic calorimeter according to claim 1 is characterized in that: described time detecting and temperature sampling module adopt the TDC-GP2 time-to-digit converter.
4. ultrasonic calorimeter according to claim 1 is characterized in that: described following current transducer and adverse current transducer all adopt piezoelectric ceramic transducer, and described inflow temperature sensor and leaving water temperature sensor all adopt accurate pairing platinum resistance.
5. ultrasonic calorimeter according to claim 1 is characterized in that: described memory module adopts eeprom memory.
CN2010201791341U 2010-05-05 2010-05-05 Ultrasonic heat meter CN201672996U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201791341U CN201672996U (en) 2010-05-05 2010-05-05 Ultrasonic heat meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201791341U CN201672996U (en) 2010-05-05 2010-05-05 Ultrasonic heat meter

Publications (1)

Publication Number Publication Date
CN201672996U true CN201672996U (en) 2010-12-15

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CN2010201791341U CN201672996U (en) 2010-05-05 2010-05-05 Ultrasonic heat meter

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CN (1) CN201672996U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102354416A (en) * 2011-07-08 2012-02-15 张美林 Prepayment temperature control ultrasonic calorimeter
CN102426067A (en) * 2011-11-04 2012-04-25 北京益都仪表成套厂 Heat meter and pressure stabilization method thereof
CN103900738A (en) * 2014-01-18 2014-07-02 宁波百立康智能仪表有限公司 Calorimeter suitable for detection of double-time measuring method
CN104729764A (en) * 2015-04-03 2015-06-24 成都声立德克技术有限公司 Ultra-small handheld ultrasonic heat flow measuring device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102354416A (en) * 2011-07-08 2012-02-15 张美林 Prepayment temperature control ultrasonic calorimeter
CN102426067A (en) * 2011-11-04 2012-04-25 北京益都仪表成套厂 Heat meter and pressure stabilization method thereof
CN103900738A (en) * 2014-01-18 2014-07-02 宁波百立康智能仪表有限公司 Calorimeter suitable for detection of double-time measuring method
CN104729764A (en) * 2015-04-03 2015-06-24 成都声立德克技术有限公司 Ultra-small handheld ultrasonic heat flow measuring device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Tianjin Saien Energy Technology Co., Ltd.

Assignor: Zuo Ye

Contract record no.: 2011120000074

Denomination of utility model: Flow sensor of ultrasonic heat meter

Granted publication date: 20101215

License type: Exclusive License

Record date: 20110614

ASS Succession or assignment of patent right

Owner name: TIANJIN SAIEN ENERGY TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: ZUO YE

Effective date: 20110802

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110802

Address after: 300384 Tianjin Huayuan Industrial Park No. 18 yuan Lu GUI

Patentee after: Tianjin Saien Energy Technology Co., Ltd.

Address before: 300384 Tianjin Huayuan Industrial Park No. 18 yuan Lu GUI

Patentee before: Zuo Ye

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101215

Termination date: 20180505