CN102706485A

CN102706485A - Ultrasonic heat meter with double flowmeters

Info

Publication number: CN102706485A
Application number: CN201210231382XA
Authority: CN
Inventors: 李�杰; 张传健; 吕召; 钱强
Original assignee: WEIHAI ZHENYU INTELLIGENT TECHNOLOGY CO LTD
Current assignee: WEIHAI ZHENYU INTELLIGENT TECHNOLOGY CO LTD
Priority date: 2012-07-05
Filing date: 2012-07-05
Publication date: 2012-10-03

Abstract

The invention relates to the technical field of measurement of cold and heat flow and particularly relates to an ultrasonic heat meter with double flowmeters. The ultrasonic heat meter with double flowmeters is characterized in that the ultrasonic heat meter is provided with an inlet water flow sensor, a return water flow sensor, an inlet water temperature sensor, a return water temperature sensor and an integrator. The inlet water flow sensor and the return water flow sensor are connected with the integrator respectively through a data line. The inlet water temperature sensor and the return water temperature sensor are connected with the integrator through a data line respectively. Water flow in a water inlet pipe and water flow in a return water pipe are transmitted to the integrator in electric signal mode through the inlet water flow sensor and the return water flow sensor respectively, the integrator collects, compares and calculates collected flow value, and obtained difference value can indicate water loss quantity of a user. The ultrasonic heat meter with double flowmeters solves the substantial problems of heat supplying companies that water resource with heat is stolen or lost without any cost and can not be measured and controlled and has the advantages of being reasonable in structure, high in measurement precision, accurate in measurement and the like.

Description

Two flowmeter ultrasonic calorimeters

Technical field

The present invention relates to cold and hot flow field of measuring techniques, specifically a kind of pair of cold and hot gauging table of flowmeter formula ultrasound wave.

Background technology

As everyone knows, because north of china in winter is cold, for people warm oneself conveniently, safety; Heat supply company arrives every household with hot water through pipeline transportation usually; Use the enthusiasm condition for what measure each household, the use heat of calorimeter with the metering each household is installed on the inlet channel of each household usually, existing calorimeter is divided into mechanical type calorimeter and ultrasonic calorimeter usually; Between heating period; Each heat supply company can find that all the user has " steal heat " phenomenon, for example: have on radiator, to connect bypass cock and steal heat, heat-obtaining water, because calorimeter is installed on the metallic conduit; The heat of every household can only be metered into, and the heat and the flow of the outlet conduit that comes out from every household can not be measured.Like this, heat supply company not only loses a lot of heats every year, also need replenish a lot of recirculated water, and causes heat and water resource can't be measured, and causes the huge energy loss of heat supply company.

Through retrieval; Disclosing a kind of number of patent application on the net is that 200610122673X, patent name are: the application for a patent for invention of the calorimeter of bidirectional measuring and built-in temperature probe; It is by opposite minimum fixing two water meters that can measure hot water of water (flow) direction in a shell; Each fixing one or more temperature probe on the water route of each water meter; Also be fixed with an integrator computing unit wiring board and an electronic console within it; The signal generation collector that a hot water flow is all arranged on each water meter, and each signal generation collector all is to connect with being connected lead in the enclosure with temperature probe and integrator computing unit wiring board, and integrator computing unit shows the result of computing on electronic console.Its deficiency is: this calorimeter is owing to adopt two water meters, and production cost is high, owing to adopt two water meters to measure the flow of water; In use be to lean on the wheel rotation that flowing of hot water promote watch core and the flow that calculates the hot water that passes through multiply by corresponding temperature difference and corresponding calculated coefficient with the flow that obtains again, obtain the place heat supply and the heat that consumes with this; In use; Come calculation flow rate because hot water promotes wheel rotation, thereby obtain flow, in its table mechanical wheel rotor is arranged; Between heating period; Owing in the heating water pipe impurity foreign matter is arranged easily, in the calorimeter operation process, be easy to be stuck, cause calorimeter to move and to measure.In addition between heating period, reach more than 12 hours so long running the duration of runs of this water meter every day at least; One, causes the mechanical component wearing and tearing easily; Two, machinery continuously running can produce high temperature, through calorimeter itself be again high-temperature-hot-water, the temperature that will aggravate rotatable parts like this rises and causes damaging; Therefore this unreasonable structure, serviceable life are short, and measuring accuracy is poor, can't control and steal, leak or the dehydration behavior.

Summary of the invention

The objective of the invention is to solve the deficiency of above-mentioned prior art, provide a kind of rational in infrastructure, measuring accuracy is high, accurate measurement, avoid a large amount of two flowmeter ultrasonic calorimeters that run off of heat supply company heat and water resource.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of pair of flowmeter ultrasonic calorimeter; It is characterized in that being provided with flow of inlet water sensor, circling water flow rate sensor, inflow temperature sensor, return water temperature sensor and integraph; The flow of inlet water sensor is connected with integraph through data line respectively with the circling water flow rate sensor; The inflow temperature sensor is connected with integraph through data line respectively with the return water temperature sensor; Through the flow of inlet water sensor flow of the water of flowing through in the water inlet pipe and circling water flow rate sensor are sent to integraph with the form of electric signal respectively with the flow of the water of flowing through in the return pipe; Integraph shows inflow and backwater amount simultaneously through the acquisition stream value is gathered, compared and calculates on integraph, the heat supply of unit users has not only been measured inflow but also measured the backwater amount; And showing bidirectional flow value and value difference, the difference of gained can show this user's dehydration quantity.

Said integraph comprises wiring board; Wiring board is provided with power module, digital circuit, mimic channel, single-chip microcomputer mainboard, jtag interface, TDC-GP2 numeral conversion chip, analog quantity load module, keyboard load module, LCD display module and serial communication module; Digital circuit is made up of system, control circuit, the higher-order of oscillation and counting circuit, interface circuit and microcomputer control circuit; Mimic channel is made up of ultrasonic transmit circuit, ultrasound wave receiving circuit, ultrasound wave reception/emission change-over circuit and temperature measuring circuit; The present invention can carry out data acquisition, processing, storage and demonstration to the temperature and the flow signal of water inlet pipe and return pipe, and telecommunication, battery status detection and heating time show.

The present invention is owing to adopt said structure; When thoroughly having solved the heat supply of heat supply company; The water resource that has heat of high temperature runs off at water return pipeline without metering in a large number; And can't measure, uncontrollable question of substance, have rational in infrastructure, measuring accuracy is high, accurate measurement, can thoroughly stop the advantages such as generation of tax evasion water problems.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

Fig. 2 is the structural representation of flow sensor among the present invention.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the theory diagram of integraph among the present invention.

Reference numeral: flow of inlet water sensor 1, circling water flow rate sensor 2, inflow temperature sensor 3, return water temperature sensor 4, integraph 5, data line 6, data line 7.

Embodiment

Below in conjunction with accompanying drawing the present invention is further specified:

Shown in accompanying drawing; A kind of pair of flowmeter ultrasonic calorimeter; It is characterized in that being provided with flow of inlet water sensor 1, circling water flow rate sensor 2, inflow temperature sensor 3, return water temperature sensor 4 and integraph 5; Flow of inlet water sensor 1 is connected with integraph 5 through data line 6, and circling water flow rate sensor 2 is connected with integraph 5 through data line 7, and inflow temperature sensor 3 is connected with integraph 5 through data line respectively with return water temperature sensor 4; Through flow of inlet water sensor 1 flow of the water of flowing through in the water inlet pipe and circling water flow rate sensor 2 are sent to integraph 5 with the form of electric signal respectively with the flow of the water of flowing through in the return pipe; Integraph 5 shows inflow and backwater amount simultaneously through the acquisition stream value is gathered, compared and calculates on integraph 5, the heat supply of unit users has not only been measured inflow but also measured the backwater amount; And showing bidirectional flow value and value difference, the difference of gained can show this user's dehydration quantity.

Said integraph 5 comprises wiring board 8; Wiring board 8 is provided with power module, digital circuit, mimic channel, MSP430 single-chip microcomputer mainboard, TDC-GP2 numeral conversion chip, analog quantity load module, keyboard load module, jtag interface, LCD display module and serial communication module; Digital circuit is made up of system, control circuit, the higher-order of oscillation and counting circuit, interface circuit and microcomputer control circuit; Mimic channel is made up of ultrasonic transmit circuit, ultrasound wave receiving circuit, ultrasound wave reception/emission change-over circuit and temperature measuring circuit; The present invention can carry out data acquisition, processing, storage, demonstration and comparison to the temperature and the flow signal of water inlet pipe and return pipe, and telecommunication, battery status detection and heating time show.

Flow of inlet water sensor 1 of the present invention is made up of table body, transducer, reflecting optics respectively with circling water flow rate sensor 2; Table body endoporus transversal section is square; Table body one sidewall is provided with the following current transducer body and adverse current transducer installation body is installed; The center line extension line place of corresponding two bodys of another sidewall is provided with reflecting optics; And the angle that the following current transducer is installed between body and the adverse current transducer installation body is 90 degree, and transducer is separately fixed at the following current transducer and installs in body and the adverse current transducer installation body.

The present invention can be provided with housing in use on the inlet pipeline of each household and water return pipeline, the present invention can be located in the housing of sealing; Be beneficial to the true record of heat supply company; Prevent to destroy, flow of inlet water sensor 1 and inflow temperature sensor 3 are installed on the inlet pipeline, circling water flow rate sensor 2 is installed on the water return pipeline with return water temperature sensor 4; Integraph 5 can be installed on the table body of flow of inlet water sensor 1; When the user put hot water in doors steathily, the flow of hot water and temperature were gathered through circling water flow rate sensor 2 and return water temperature sensor 4 respectively in the water return pipeline, and the numeral of the TDC-GP2 in data line is delivered to integraph 5 transforms chip respectively; Numeral transforms chip information is passed to single-chip microcomputer; The data that flow of inlet water sensor on the inlet pipeline 1 is gathered are carried out data acquisition, processing, storage, demonstration and comparison with the data of 2 collections of the circling water flow rate sensor on the water return pipeline, the heat supply of unit users has not only been measured inflow but also measured the backwater amount, on integraph, show inflow and backwater amount simultaneously; And value difference, the difference of gained can show this user's dehydration quantity.

[0017]The present invention is owing to adopt said structure; When thoroughly having solved the heat supply of heat supply company; The water resource that has heat of high temperature runs off at water return pipeline without metering in a large number; And can't measure, uncontrollable question of substance, have rational in infrastructure, measuring accuracy is high, accurate measurement, can thoroughly stop the advantages such as generation of tax evasion water problems.

Claims

1. two flowmeter ultrasonic calorimeter; It is characterized in that being provided with flow of inlet water sensor, circling water flow rate sensor, inflow temperature sensor, return water temperature sensor and integraph; The flow of inlet water sensor is connected with integraph through data line respectively with the circling water flow rate sensor, and the inflow temperature sensor is connected with integraph through data line respectively with the return water temperature sensor.