CN220206909U

CN220206909U - Heat meter

Info

Publication number: CN220206909U
Application number: CN202321500995.9U
Authority: CN
Inventors: 张学宝; 罗衍伟; 陈延军; 沈瑞欣
Original assignee: Zhejiang Juchuan Electronics Co ltd
Current assignee: Zhejiang Juchuan Electronics Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-19
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a heat meter which is arranged between a pipeline and a heating user and comprises a metering circuit, an inflow temperature sensor, an outflow temperature sensor, a flow sensor and a power supply circuit, wherein the metering circuit, the inflow temperature sensor, the outflow temperature sensor and the flow sensor are respectively and electrically connected with the power supply circuit, the inflow temperature sensor is arranged at one inflow end of the pipeline, and the output end of the inflow temperature sensor is electrically connected with the first input end of an amplifying and AD conversion circuit. According to the heat meter disclosed by the utility model, the heat energy of the pipeline is calculated through the metering circuit, the inflow temperature sensor, the outflow temperature sensor and the flow sensor, so that the use heat energy of each heating user is accurately obtained, the corresponding cost is calculated, and the heat meter has the advantages of high practicability, stable structure, convenience in use and the like.

Description

Heat meter

Technical Field

The utility model belongs to the technical field of calorimeters, and particularly relates to a calorimeter.

Background

Heating is needed in winter in north of China, and most areas are subjected to central heating through a hot network in order to save energy and reduce smoke dust. But the thermal energy is sold as a commodity, of course, for a fee. However, since the resident does not install the calorimeter at home, the resident needs to charge for the building area for a while. But it is obviously unreasonable to pay heat fees by building area, which should be calculated according to the heat energy actually used by the user.

Accordingly, the above problems are further improved.

Disclosure of Invention

The utility model mainly aims to provide a heat meter which calculates heat energy of a pipeline through a metering circuit, an inflow temperature sensor, an outflow temperature sensor and a flow sensor, so that the heat energy used by each heating user is accurately obtained, and corresponding cost is calculated.

In order to achieve the above object, the present utility model provides a heat meter, which is installed between a pipe and a heating user, and comprises a metering circuit, an inflow temperature sensor, an outflow temperature sensor, a flow sensor and a power circuit, wherein the metering circuit, the inflow temperature sensor, the outflow temperature sensor and the flow sensor are respectively and electrically connected with the power circuit, wherein:

the inflow temperature sensor is arranged at one inflow end of the pipeline, and the output end of the inflow temperature sensor is electrically connected with the first input end of the amplifying and AD conversion circuit; the outflow temperature sensor is arranged at one outflow end of the pipeline, the output end of the outflow temperature sensor is electrically connected with the second input end of the amplifying and AD conversion circuit, and the output end of the amplifying and AD conversion circuit is electrically connected with the temperature acquisition end of the metering circuit;

the flow sensor is arranged between the inflow temperature sensor and the water inlet of the pipeline, and the output end of the flow sensor is electrically connected with the flow acquisition end of the metering circuit;

the electromagnetic valve is arranged between the flow sensor and the water inlet of the pipeline, and the metering circuit is electrically connected with the electromagnetic valve through the electromagnetic valve driving circuit.

As a further preferable technical scheme of the technical scheme, the heat meter further comprises a keyboard control circuit, an LED display circuit, a reset circuit and a crystal oscillator circuit, wherein:

the keyboard control circuit is electrically connected with the keyboard end of the metering circuit, the LED display circuit is electrically connected with the display end of the metering circuit, the reset circuit is electrically connected with the reset end of the metering circuit, and the crystal oscillator circuit is electrically connected with the crystal oscillator end of the metering circuit.

As a further preferable mode of the above-described mode, the power supply circuit includes a first power supply circuit that outputs a first level voltage (9V) and a second power supply circuit that outputs a second level voltage (5V).

As a further preferable aspect of the foregoing technical solution, the first power supply circuit includes a transformer T1, a transformer T2, a voltage stabilizer U1, and a voltage stabilizer U2, wherein:

the input end of the transformer T1 inputs commercial power, the output end of the transformer T1 is electrically connected with the input end of the voltage stabilizer U1 through a rectifier bridge B1, and the output end of the voltage stabilizer U1 outputs positive first-level voltage (+ 9V);

the input end of the transformer T2 inputs commercial power, the output end of the transformer T2 is electrically connected with the input end of the voltage stabilizer U2 through a rectifier bridge B2, and the output end of the voltage stabilizer U2 outputs negative first-level voltage (-9V).

As a further preferable aspect of the above technical aspect, the second power supply circuit includes a transformer T3 and a voltage regulator U3, wherein:

the input end of the transformer T3 inputs commercial power, the output end of the transformer T3 is electrically connected with the input end of the voltage stabilizer U3 through a rectifier bridge B3, and the output end of the voltage stabilizer U3 outputs second-level voltage (+ 5V).

Drawings

FIG. 1 is a schematic illustration of a heat meter of the present utility model.

Fig. 2 is a schematic illustration of a heat meter of the present utility model.

Fig. 3 is a schematic diagram of a first power circuit of a heat meter of the present utility model.

Fig. 4 is a schematic diagram of a second power circuit of a calorimeter of the utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

The utility model discloses a heat meter, and the following describes the specific embodiments of the utility model further with reference to the preferred embodiments.

In embodiments of the present utility model, those skilled in the art will note that the heating user and plumbing, etc., to which the present utility model relates may be considered prior art.

Preferred embodiments.

As shown in fig. 1-4, the utility model discloses a heat meter, which is installed between a pipeline and a heating user, and comprises a metering circuit (comprising a metering chip AT89C 51), an inflow temperature sensor, an outflow temperature sensor, a flow sensor and a power circuit, wherein the metering circuit, the inflow temperature sensor, the outflow temperature sensor and the flow sensor are respectively and electrically connected with the power circuit, and the heat meter comprises:

Specifically, the calorimeter also comprises a keyboard control circuit, an LED display circuit, a reset circuit and a crystal oscillator circuit, wherein:

More specifically, the power supply circuit includes a first power supply circuit that outputs a first level voltage (9V) and a second power supply circuit that outputs a second level voltage (5V).

Further, the first power supply circuit includes a transformer T1, a transformer T2, a voltage regulator U1, and a voltage regulator U2, wherein:

Still further, the second power supply circuit includes a transformer T3 and a voltage regulator U3, wherein:

Preferably, for the heat calculation: the flow sensor sends out pulse signals proportional to the flow, the pair of temperature sensors gives out analog signals representing the temperature, the metering circuit collects signals from the flow and the temperature sensors, and the heat obtained by the heat exchange system is calculated by using a calculation formula.

It should be noted that technical features such as heating users and pipelines related to the present application should be regarded as the prior art, and specific structures, working principles, control modes and spatial arrangement related to the technical features should be selected conventionally in the art, and should not be regarded as the utility model point of the present application, and the present application is not further specifically developed in detail.

Modifications of the embodiments described above, or equivalents of some of the features may be made by those skilled in the art, and any modifications, equivalents, improvements or etc. within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.

Claims

1. The utility model provides a calorimeter installs between pipeline and heating user, its characterized in that, including metering circuit, inflow temperature sensor, outflow temperature sensor, flow sensor and power supply circuit, metering circuit inflow temperature sensor, outflow temperature sensor with flow sensor respectively with power supply circuit electric connection, wherein:

2. The heat meter of claim 1, further comprising a keyboard control circuit, an LED display circuit, a reset circuit, and a crystal oscillator circuit, wherein:

3. The heat meter of claim 2, wherein the power supply circuit comprises a first power supply circuit and a second power supply circuit, the first power supply circuit outputting a first level voltage and the second power supply circuit outputting a second level voltage.

4. A heat meter according to claim 3, wherein the first power supply circuit comprises a transformer T1, a transformer T2, a voltage regulator U1 and a voltage regulator U2, wherein:

the input end of the transformer T1 inputs commercial power, the output end of the transformer T1 is electrically connected with the input end of the voltage stabilizer U1 through a rectifier bridge B1, and the output end of the voltage stabilizer U1 outputs positive first-level voltage;

the input end of the transformer T2 inputs commercial power, the output end of the transformer T2 is electrically connected with the input end of the voltage stabilizer U2 through a rectifier bridge B2, and the output end of the voltage stabilizer U2 outputs negative first-level voltage.

5. The heat meter of claim 4, wherein the second power circuit comprises a transformer T3 and a voltage regulator U3, wherein:

the input end of the transformer T3 inputs commercial power, the output end of the transformer T3 is electrically connected with the input end of the voltage stabilizer U3 through a rectifier bridge B3, and the output end of the voltage stabilizer U3 outputs second-level voltage.