CN201000374Y - Wireless temperature measurement ultrasonic-wave heat energy meter - Google Patents

Abstract

The utility model discloses a wireless temperature measurement ultrasonic heat energy gauge, which comprises two parts, wherein one is arranged in an integrated controller on a water feeding pipe, and the other is arranged temperature collector on a water returning pipe. The wireless data transmission between the integrated controller and the water returning temperature collector is performed by the PTR 800 wireless communication modules of the integrated controller and the water returning temperature collector. The utility model has the advantages that the wireless integrated temperature sensor technology is adopted, the outstanding common problems that the wired collecting water feeding and the water returning temperature adopted by the existing thermal gauge production unit are not convenient to install low reliability are resolved, and by using the ultrasonic flow meter technology, the main problems that the small flow meter error and the large pick up flow of the thermal gauge are also resolved.

Description

The wireless temperature measurement ultrasonic heat energy meter

Technical field

The utility model relates to a kind of measuring apparatus, particularly relates to a kind of wireless temperature measurement ultrasonic heat energy meter.

Background technology

The existing heating charge system of China is by area charge, though this kind charge method has realized the function of " controlling by family metering, branchs family " to a certain extent, but still exist heat energy uncontrollable, measure not limitation such as science.

Disclosed Chinese patent on Dec 6 calendar year 2001 " totally digitilized heat energy table ", its publication number is CN2468028Y, the patent No. is: ZL00268276.1, this heat energy table has functions such as automatic demonstration heat energy integrating amount, inflow temperature, leaving water temperature and the temperature difference and accumulative total water consumption, and can insert teletransmission management system and IC-card manager.

Disclosed Chinese patent on July 30 " thermal energy meter " in 2003, its publication number is CN2563560Y, the patent No. is: ZL02266539.0, this heat energy table can be controlled the flow of fluid by motorized valve, realizes room temperature is regulated, and has reduced energy consumption.

Present domestic heat energy table temperature detection all needs wired return water temperature to detect the many installation questions that bring; The flow detection parts adopt vane type mostly, bring following defective: to the water quality requirement height, need install filtration unit additional usually, itself has mechanical wear instrument, so need frequent calibration, its serviceable life is also short, and under small flow rate, error in dipping is obviously bigger than normal.

The utility model content

The purpose of this utility model is to detect the shortcoming of being brought in order to solve above-mentioned wired return water temperature, and a kind of wireless temperature measurement ultrasonic heat energy meter that overcomes above-mentioned shortcoming is provided.

The utility model includes two parts to be formed, and a part is the Centralized Controller that is installed on the water inlet pipe, and another part is the return water temperature capturing device that is installed on the return pipe.

The Centralized Controller that is installed on the water inlet pipe place includes cavity, ultrasonic flow meter, the inflow temperature sensor, the hotlist shell, control module and LCD, wireless communication module, wherein, ultrasonic flow meter is installed in the cavity, flow through the fluid flow of cavity with measurement, the inflow temperature sensor is installed in the cavity, flow through the fluid temperature of cavity with measurement, LCD is located at the hotlist case surface, to show various data, control module, ultrasonic flow meter is sealed in the hotlist shell, ultrasonic flow meter is electrically connected with control module, so that flow signal is inputed to control module, the inflow temperature sensor is electrically connected with control module, so that temperature signal is inputed to control module, LCD is electrically connected with control module, battery is connected with control module by mu balanced circuit, and EEPROM is a data-carrier store, and control module is the MSP430 single-chip microcomputer, the model of wireless communication module is PTR8000, and it is electrically connected with control module.

The return water temperature capturing device that is installed on the return pipe place includes cavity, wireless communication module, return water temperature sensor, return water temperature control module composition, the return water temperature sensor is electrically connected with control module, so that temperature signal is inputed to control module, the model of wireless communication module is PTR8000, it is electrically connected with control module, and battery is connected with control module by mu balanced circuit.

The PTR8000 type wireless communication module of Centralized Controller and return water temperature capturing device carries out wireless data transmission between the two.

Principle of work of the present utility model and process are as follows:

Calorimeter is a kind ofly to be applicable to that measurement heat transport fluid in the heat interchange loop absorbs or the instrument of conversion thermal energy, and calorimeter claims heat energy table or heat energy integrating instrument again, and it is the heating load of energy measurement heating system both, again the caloric receptivity of energy measurement cold supply system.Heating system is a systems stabilisation.Flow of hot water is when user's heat exchanger, and the pipe internal pressure is constant substantially, so heat supply can be regarded as an isobaric process.By enthalpy potential method heat Calculation formula, the heat of user's acquisition is as can be known:

$Q=\underset{\mathrm{t1}}{\overset{t2}{\∫}}{K}_e{Q}_m\mathrm{\Δtdt}$

Q is a heat in the formula; Ke is the heat content correction factor, and unit is KWhs ℃ of Kg, and its size is relevant with temperature, can be regarded as the function of temperature, Ke=f (t); Q _mBe mass rate, unit is Kg/s; Δ t is the loop temperature difference, can try to achieve the size of heat to the certain time interval integration.So the key of calorimetry is accurately to measure Ke, Q _mWith temperature difference t.

The industrial flow of saying usually refers to the amount of passing through the flow media in a certain cross section in pipeline or the passage in the unit interval.Available appearance (body), quality are calculated.Therefore, flow is used volumetric flow rate respectively (be also referred to as volume flow, represent with Q, unit is cm ³/ s, L/min or m ³/ h), mass rate (representing the g/s of unit, kg/h or t/h with M) expression.The relation of volumetric flow rate and mass rate is

M＝ρQ

ρ refers to the density of fluid in the formula, and M refers to mass rate, and Q refers to volume flow; Refer to density p=1 of water for ρ in this calorimeter, mass rate equates with volume flow, the measurement of mass rate can be transferred to the measurement of flux capacity.The total amount that flows through fluid in a certain period becomes integrated flow, equals in this time the integration of time is called instantaneous delivery again with the corresponding flow of integrated flow.

Characteristics of the present utility model are to adopt wireless integrated temperature sensor technology, solve construction and installation inconvenience and low this outstanding common problem of reliability that wired collection feedwater that present calorimeter production unit generally adopts and return water temperature bring, utilized ultrasonic technology to solve the big subject matter of calorimeter low discharge metering sum of errors initiating flow in addition.

Description of drawings

Fig. 1 is a Centralized Controller structural drawing of the present utility model.

Fig. 2 is a return water temperature capturing device structural drawing of the present utility model.

Fig. 3 is the control module of the utility model Centralized Controller and the control unit circuit block diagram of return water temperature capturing device.

Embodiment

See also Fig. 1, shown in Figure 2, the embodiment of the utility model is made up of Centralized Controller A and return water temperature capturing device B two parts.

See also Fig. 1, shown in Figure 3, the Centralized Controller A that is installed on water inlet pipe C place includes cavity 1, ultrasonic flow meter 2, inflow temperature sensor 3, hotlist shell 4, control module 5 and LCD 6, wireless communication module 7, wherein, ultrasonic flow meter 2 is installed in the cavity 1, flow through the fluid flow of cavity 1 with measurement, inflow temperature sensor 3 is installed in the cavity 1, flow through the fluid temperature of cavity 1 with measurement, LCD 6 is located at hotlist shell 4 surfaces, to show various data, control module 5, ultrasonic flow meter 2 is sealed in the hotlist shell 4, ultrasonic flow meter 2 is electrically connected with control module 5, flow signal is inputed to control module 5, inflow temperature sensor 3 is electrically connected with control module 5, temperature signal is inputed to control module 5, LCD 6 is electrically connected with control module 5, lithium battery is connected with control module 5 by mu balanced circuit, EEPROM is a data-carrier store, control module 5 is the MSP430 single-chip microcomputer, the model of wireless communication module 7 is PTR8000, and it is electrically connected with control module 5.

See also Fig. 2, shown in Figure 3, the return water temperature capturing device B that is installed on return pipe D place includes cavity 1, wireless communication module 7, return water temperature sensor 9, return water temperature control module 10 compositions, return water temperature sensor 9 is electrically connected with control module 10, temperature signal is inputed to control module 10, control module 10 is the MSP430 single-chip microcomputer, the model of wireless communication module 7 is PTR8000, and it is electrically connected with control module 10, and lithium battery is connected with control module 10 by mu balanced circuit.

The wireless data transmission that the PTR8000 type wireless communication module 7 of Centralized Controller A and return water temperature capturing device B carries out between the two.

Claims (1)

1, a kind of wireless temperature measurement ultrasonic heat energy meter is characterized in that: be made up of the Temperature sampler two parts that are installed on the Centralized Controller on the water inlet pipe and be installed on the return pipe;

The Centralized Controller that is installed on the water inlet pipe place includes cavity, ultrasonic flow meter, the inflow temperature sensor, the hotlist shell, control module and LCD, wireless communication module, wherein, ultrasonic flow meter is installed in the cavity, flow through the fluid flow of cavity with measurement, the inflow temperature sensor is installed in the cavity, flow through the fluid temperature of cavity with measurement, LCD is located at the hotlist case surface, to show various data, control module, ultrasonic flow meter is sealed in the hotlist shell, ultrasonic flow meter is electrically connected with control module, so that flow signal is inputed to control module, the inflow temperature sensor is electrically connected with control module, so that temperature signal is inputed to control module, LCD is electrically connected with control module, battery is connected with this control module by mu balanced circuit, and EEPROM is a data-carrier store, and control module is the MSP430 single-chip microcomputer, the model of wireless communication module is PTR8000, and it is electrically connected with control module;

The return water temperature capturing device that is installed on the return pipe place includes cavity, wireless communication module, return water temperature sensor, return water temperature control module composition, the return water temperature sensor is electrically connected with control module, so that temperature signal is inputed to control module, the model of wireless communication module is PTR8000, it is electrically connected with control module, and battery is connected with this control module by mu balanced circuit;

The PTR8000 type wireless communication module of Centralized Controller and return water temperature capturing device carries out wireless data transmission between the two.

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