CN2641615Y

CN2641615Y - Heat quantity measurer

Info

Publication number: CN2641615Y
Application number: CN 03258472
Authority: CN
Inventors: 陈为康
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2004-09-15
Anticipated expiration: 2013-09-19

Abstract

The utility model relates to a heat meter, which is composed of sensors, an amplifier, an A/D converter, a monolithic processor, a liquid crystal display, and a power source. Two sensors are respectively arranged at the water supplying and return pipes of each group of radiators, another sensor is arranged on the wall, and after the three sensors are connected, two conducting wires of positive and negative electrodes are deduced, and connected with a 14-path logical switch; a cross-over pipe is arranged at the water supplying and return pipes of each group of radiators, and a three-way valve is used to adjust the room temperature; the power source adopts 1. 5 V batteries, and the voltage is promoted to 6 V through a voltage changer. The amplifier with high enlargement factor, small offset current and low noise is adopted; a 12-digit monolithic processor of large capacity storage, low power consumption and high accuracy is adopted to accurately record the heat consumption of the user, and a heat meter can be performed with remote online control, remote meter reading and centralized management. A size D battery can be used for 3 to 5 years, the heat meter volume is small, the precision is high, the service life is long, the maintenance is small, the charge collection is scientific, and the energy resource are saved, when heating in old houses is reformed, the original heating system is not disassembled, thereby saving large amount of capital, but not affecting the decoration of the inhabitant, and not harassing people.

Description

Hotlist

Technical field:

The utility model belongs to the hotlist of measuring temperature, but particularly relates to a kind of hotlist that precision height, long-play are stable, long maintenance capacity of life-span is little and teletransmission is checked meter that has.

Background technology:

At present known domestic resident's winter heating charge is all calculated by usable floor area, because of indoor temperature is difficult to control, when the main pipe rail water temperature is high, have to open door and window and fall room temperature, thereby caused the waste of the energy, and the resident has spent more money, for more reasonable, must adopt that Every household has an ammeter scientifically charges by the heat of each household actual consumption, and the external hotlist of producing does not meet China's national situation, and it can only be used for two-tube heating system, simultaneously, mainly be to utilize the volume of heating agent to multiply by the temperature that is improved to calculate during measurement, must measure the heating agent flow for this reason, heating agent also be had strict demand, so not only bother but also inaccurate; At present domestic have kind of a hotlist, but volume is big, maintenance capacity big, power supply is that alternating current must become direct current behind overcommutation, in addition, will be subjected to very big influence in case have a power failure, simultaneously can not Long-distance Control, be not easy to centralized management.

Summary of the invention:

Fundamental purpose of the present utility model be to overcome above-mentioned deficiency and provide a kind of and have that volume is little, the long service life maintenance capacity is little, be not subjected to alternating current disturbance and the trouble that has a power failure, can surf the Net carry out that teletransmission is checked meter, Long-distance Control and the hotlist being convenient to manage concentratedly.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: it is made up of temperature sensor, amplifier, A/D transducer, single-chip microcomputer, LCD, power supply, it is characterized in that: temperature sensor is placed in confession, the return pipe place of every group of heating radiator respectively, links to each other with logic switch a temperature sensor also being installed on the wall and being connected the back with temperature sensor on every group of heating radiator; Logic switch, amplifier, A/D transducer, 12 single-chip microcomputers, LCD connect successively, and are connected with the estate management center terminal by interface; Power supply adopts the 1.5V dc-battery, by voltage changer voltage is promoted and be stabilized to 6V.

The utility model can also adopt following technical measures: described amplifier is selected high-amplification-factor, little offset current, low noise for use, and its signal to noise ratio (S/N ratio) is higher than the single channel amplifier of 80dB.It is ADS1216 that described A/D transducer is selected low-power consumption, high precision, its model of A/D transducer of 12 for use.Described 12 single-chip microcomputers are selected high-capacity flash memory device, low-power consumption, high precision type for use, and its model is PIC16LF876.

Advantage and the good effect that the utlity model has are: tallying with the national condition promptly all is suitable for single tube and two-tube heating system, hotlist is simple in structure, volume is little, be convenient to I﹠M, can be with computer networking, teletransmission be checked meter, can be managed concentratedly automatically, because of adopting direct current 1.5V battery, power supply is not subjected to the influence of AC power outage, in addition, when the heat supply of old room is transformed, need not remove original heating system, so obvious economic can be saved substantial contribution, reduced cost, energy savings.

Description of drawings:

Fig. 1 is the installation and the circuit connection diagram of temperature sensor in the one-pipe heating system;

Fig. 2 is the installation and the circuit connection diagram of temperature sensor in the two-tube heating system;

Fig. 3 is the utility model structure and principle block diagram.

Embodiment:

Now exemplify following examples for further understanding summary of the invention of the present utility model, characteristics and effect, and conjunction with figs. is described in detail as follows, sees also Fig. 1-Fig. 3.

Embodiment 1: as Fig. 1, shown in Figure 3, this hotlist is by temperature sensor 1,2, logic switch 5, amplifier 6, A/D transducer 7,12 single-chip microcomputers 8, LCD 9, interface 10, remote transmission device 11, voltage changer 12, power supply 13 is formed, it now is example with the one-pipe heating system, as shown in Figure 1: in the confession of every group of heating radiator, a temperature sensor 1 is respectively installed at the return pipe place, a temperature sensor 2 is installed on wall again, and three temperature sensors are connected together, directly deliver to the logic switch of hotlist, confession at every group of heating radiator, the return pipe place adds crosses over pipe 3, and the adjusting flow that the T-valve of the manual control of installation herein 4 people are is with the control room temperature.Temperature sensor 2 usefulness on the wall are gathered room temperature information, are used for gathering on every group of heating radiator temperature information for, return pipe for the temperature sensor 1 at, return pipe place on every group of heating radiator, and they all show as electromotive force.The ultimate principle of this hotlist is according to heat transfer principle, Fourier's law is that heat is directly proportional with thermograde and makes, method by detected temperatures directly calculates heat, its formula is as follows: Q=-λ grad tF (Q: heat, λ: heat transfer coefficient, t: temperature, F: area, grad: thermograde), the principle of work of this hotlist is as shown in Figure 3: with temperature sensor 1,2 information of gathering are received on the logic switch 5 of hotlist, logic switch 5 is connected with amplifier 6, amplifier 6 amplifies information, amplifier 6 is connected with A/D transducer 7 and converts analog quantity to digital quantity, A/D transducer 7 is connected with 12 single-chip microcomputers 8, after 12 single-chip microcomputers, 8 enterprising line data are handled, and on LCD 9, demonstrate the data of concrete consumption of calorie, 12 single-chip microcomputers 8 are connected with remote transmission device 11 by interface 10, and data are delivered on the estate management center terminal, power supply 13 boosts by voltage changer 12 for direct supply, and above-mentioned all each unit all are connected with this direct supply 13.When practical operation, as shown in Figure 3: temperature sensor 1,2 is all received two leads of positive and negative electrode of output on the logic switch 5 of 14 tunnel inputs at last in each room, and amplifier 6 selects for use high-amplification-factor, little offset current, its signal to noise ratio (S/N ratio) of low noise to be higher than 80dB; Then, by A/D transducer 7 digital quantity of conversion is delivered on 12 single-chip microcomputers 8,12 single-chip microcomputers 8 are selected high-capacity flash memory device, low-power consumption, high-precision single-chip microcomputer for use, its model is PIC16LF876, it can be exactly, in time recording user thermal losses and on LCD 9, show and actually allow the user come into plain view with heat, hotlist by the online can realize Long-distance Control, teletransmission check meter, help the centralized management, the power supply 13 of this hotlist adopts high capacity 1#1.5V battery, through voltage changer 12 1.5V voltage is promoted into 6V voltage and transmits.One joint 1# battery can use 3-5, eliminated the trouble of the interference and the outage of alternating current because of adopting direct supply, this hotlist volume is little, precision is high, the long service life maintenance capacity is little, realized the science charge, energy savings, it not only can use on newly-built dwelling house in a large number, simultaneously, when the heat supply of existing dwelling house is transformed, need not remove original heating system, so saved a huge sum of money, do not influence the resident finishing, do not disturb residents.

Embodiment 2: as shown in Figure 2: the utility model hotlist is when being used for two-tube heating system, represent the added leap pipe 3 in confession, return pipe place, manual three-way valve 4 and the installation site of temperature sensor 1,2 and the situation of line connection of every group of heating radiator, design ultimate principle, principle of work and operating process and the embodiment 1 of its hotlist are identical.

Claims

1. hotlist, it is made up of temperature sensor, amplifier, A/D transducer, single-chip microcomputer, LCD, power supply, it is characterized in that: temperature sensor is placed in confession, the return pipe place of every group of heating radiator respectively, a temperature sensor also is being installed on the wall and, is being linked to each other with logic switch with after temperature sensor on every group of heating radiator is connected; Logic switch, amplifier, A/D transducer, 12 single-chip microcomputers, LCD connect successively and are connected with the estate management center terminal by interface; Power supply adopts the 1.5V dc-battery, by voltage changer voltage is promoted and be stabilized to 6V.

2. hotlist according to claim 1 is characterized in that: described amplifier is selected high-amplification-factor, little offset current, low noise for use, and its signal to noise ratio (S/N ratio) is higher than the single channel amplifier of 80dB.

3. hotlist according to claim 1 is characterized in that: it is ADS1216 that described A/D transducer is selected low-power consumption, high precision, its model of A/D transducer of 12 for use.

4. hotlist according to claim 1 is characterized in that: described 12 single-chip microcomputers are selected high-capacity flash memory device, low-power consumption, high precision type for use, and its model is PIC16LF876.