CN201149532Y - Integral ultrasound wave heat energy meter - Google Patents

Integral ultrasound wave heat energy meter Download PDF

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Publication number
CN201149532Y
CN201149532Y CNU2007200166820U CN200720016682U CN201149532Y CN 201149532 Y CN201149532 Y CN 201149532Y CN U2007200166820 U CNU2007200166820 U CN U2007200166820U CN 200720016682 U CN200720016682 U CN 200720016682U CN 201149532 Y CN201149532 Y CN 201149532Y
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China
Prior art keywords
heat energy
intake tunnel
energy meter
housing
ultrasonic heat
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Expired - Lifetime
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CNU2007200166820U
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Chinese (zh)
Inventor
孙加胜
李旭
王悦
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Individual
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  • Measuring Volume Flow (AREA)

Abstract

The utility model relates to the field of a heat metering device, in particular to an integral ultrasonic calorimeter, including a housing (1) with a displaying portion (9), a water inlet (2) and a water outlet (3) arranged inside the housing (1); and the calorimeter is characterized in that: the water inlet (2) adopts an Omega shape structure; transducer assembling bins (4, 4`) are arranged at a position parallel to a pipeline on the top of the water inlet (2) inside the housing (1); temperature sensor assembling bins (5, 5`) are arranged at the communicated position between the water inlet (2) and the water outlet (3) inside the housing(1); central axes of the transducer assembling bins (4, 4`) overlap the central axis of the pipeline on the top of the water inlet (2); and the curvature radius R of each curve of the water inlet (2) is equal and conforms with R>=4d. The integral ultrasonic calorimeter has the advantage of high metering accuracy, no scaling in the fluid cavity, low power consumption, convenience in usage and maintenance, and achieving theftproof function.

Description

A kind of integral ultrasonic heat energy meter
Technical field
The utility model belongs to the thermal gauge field, relates in particular to a kind of integral ultrasonic heat energy meter.
Background technology
The heat energy table is mainly used in the consumption of metering user system capacity, can measure thermal energy consumption, also can measure cold energy consumption.At present, there are following characteristics in the heat energy table that occurs on the market:
1, existing ultrasonic heat energy meter all is the flow measurement chamber that is made by metal material or installs nonmetallic gauge line additional in measurement chamber.Because the actual worker of the medium of present domestic heating system is spacious to be that impurity is many, bubble is many, metallic ion is many, cause the easy fouling of metallic cavity, produce sound wave distortion turbulent, that bubble is received sound wave emissions (reception) system in the heat energy table, the distortion of the volume of calculating (quality) flow at cavity after installing nonmetallic pipe additional.Sound wave emissions (reception) mode that existing ultrasonic heat energy meter adopts adopts Z or S type, utilizes the tube wall reflection or install the velocity contrast that reflection unit calculates sound wave additional in pipeline, as long as tube wall or reflecting material fouling will influence the accuracy of metering.Make narrow and small its design of actual flow cavity space itself increase the pressure loss of fluid greatly owing to install reflection unit additional in the chamber by the heat energy table.
2, straight length is adopted in the flow metering chamber of existing ultrasonic heat energy meter, is not easy to accurately install the position of ultrasonic emitting and receiving trap, and both its actual flow---center flow velocity in the real energy measurement pipeline whether was measured inaccurate.
3, the flow metering chamber of existing indivedual ultrasonic heat energy meters adopts the П type at П type one word end ultrasonic emitting (reception) device to be installed respectively, and transducer has solved the problem of fluid-velocity survey distortion.But because of its pipeline be П type fluid to flow through П type П end be the right angle, fluid will produce turbulent, cause the flow measurement distortion.
4, the temperature survey of existing ultrasonic heat energy meter is carried out separately, is installed in outside the table body, can artificially be damaged unavoidably, increases user's cost.
The utility model content
The utility model is intended to overcome the deficiencies in the prior art part and a kind of measuring accuracy height is provided, and non-scaling in the fluid cavity is low in energy consumption, uses easy to maintenance and has the integral ultrasonic heat energy meter of anti-theft feature.
For achieving the above object, the utility model is achieved in that
Integral ultrasonic heat energy meter comprises the housing that contains the display part, is fitted to intake tunnel and exhalant canal in the housing; Described intake tunnel adopts Ω type structure; In described housing with the intake tunnel top duct mutually mean place be furnished with transducer assembling storehouse; The position that communicates with intake tunnel and exhalant canal in described housing is furnished with temperature sensor assembling storehouse.
The axis in transducer assembling described in the utility model storehouse and the axis of intake tunnel top duct are overlapping.
The radius of curvature R of each bend of intake tunnel described in the utility model all equates and satisfies: R 〉=4d, d are the diameter of intake tunnel top duct.
The utility model can be furnished with solenoid valve on described intake tunnel.
As a kind of preferred version, the main part activity of display part described in the utility model and housing connects.
Housing described in the utility model can adopt nonmetallic materials to make; Described housing can adopt PVC, PPO or PC material.
The port diameter of intake tunnel described in the utility model is greater than the diameter of intake tunnel top duct.
In addition, the utility model can be furnished with battery compartment in described housing.
The utility model compared with prior art has following characteristics:
1, uses nonmetal Ω type integral type ultrasonic heat energy meter, make the inner non-scaling of fluid cavity, do not retain impurity.
2, adopt the nonmetal pipeline section be cast into the special processing of metering pipeline guaranteeing that the circularity of measuring pipeline section guarantees metering accuracy at the metering pipeline.
3, use nonmetallic materials, do the table body case, inside makes Ω type circular arc end points on the Ω type and is cast into two transducers respectively, and the center line of the metering pipeline section that the stage casing of Ω section is cast into is overlapping with the center line of transducer, further guarantees the accuracy of measuring.
4, Ω type pipeline section is in the water inlet of the foot of Ω type, water outlet, and 4 bend R of Ω type equate all to guarantee that greater than 4 times of pipeline diameters medium smoothly flows to, flows out in pipeline, do not produce the bubble turbulent flow, and then guarantees the accuracy of measuring.
5, nonmetal Ω type heat energy table is with being incorporated in the heat energy table table body of the advancing of custom system, return pipe inflow temperature probe science, and probe positions does not influence metering, makes the heat energy table have anti-theft feature.
6, on the inlet channel of nonmetal Ω type heat energy table in being incorporated into one solenoid valve is installed, IC-card, far infrared, RS485 data transmission system is housed in integrating instrument guarantees that the heat energy table function is complete.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.Protection domain of the present utility model will not only be confined to the statement of following content.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 be the utility model Fig. 1 part along A-A to cut-open view;
Fig. 3 be the utility model Fig. 1 part along B-B to cut-open view;
Fig. 4 be the utility model Fig. 1 part along C-C to cut-open view.
Embodiment
Shown in Fig. 1~4, integral ultrasonic heat energy meter comprises the housing 1 that contains display part 9, is fitted to intake tunnel 2 and exhalant canal 3 in the housing 1; Described intake tunnel 2 adopts Ω type structure; In described housing 1 with intake tunnel 2 top ducts mutually mean place be furnished with transducer assembling storehouse 4,4`; The position that communicates with intake tunnel 2 and exhalant canal 3 in described housing 1 is furnished with temperature sensor assembling storehouse 5,5`.The axis of transducer assembling described in the utility model storehouse 4,4` and the axis of intake tunnel 2 top ducts are overlapping; The radius of curvature R of described intake tunnel 2 each bend all equates and satisfies: R 〉=4d, d are the diameter of intake tunnel 2 top ducts; On described intake tunnel 2, is furnished with solenoid valve 6; As shown in Figure 4, display part 9 described in the utility model connects with the main part 7 activity waterproof of housing 1; Described housing 1 adopts PVC, PPO or PC material to make.For improving measuring accuracy and guaranteeing non-scaling in the fluid cavity, as shown in Figure 2, the port diameter of intake tunnel 2 described in the utility model should be greater than the diameter of intake tunnel 2 top ducts.As shown in Figure 3, the utility model is furnished with battery compartment 8 in described housing 1.
The computing formula of heat has following two kinds of forms:
Q = ∫ O t q m · Δh · dt …………………………(1)
In the formula: Q---the heat [kJ] of release
C---the mass rate [kg/s] of thermal liquid in the heat energy table of flowing through
Δ h---the specific enthalpy value difference [kJ/kg] of the temperature in thermal liquid corresponding with outlet temperature in the heat exchange loop, the enthalpy and the density meter of water are seen related data.
T---the time [s]
Q = ∫ O V k · Δθ · dV …………………………(2)
In the formula: Q---the heat [J or kWh] of release
The volume that V---thermal liquid flows through [m3]
Δ θ---the temperature difference in thermal liquid porch and exit in the heat exchange loop [℃]
K---hot coefficient, it is the function [J/m3 ℃ or kWh/m3 ℃] of thermal liquid under relevant temperature, the temperature difference and pressure, the hot coefficient k value of water is seen related data.
Above-mentioned formula (1), (2) can be chosen use wantonly, when using hot coefficient table, allow linear interpolation.Volume metering position in the formula (2) is in the exit of heat exchange loop, if the density correction should be carried out in the porch of heat exchange loop in actual volume metering position.
q mComputing method have a variety of claims is that medium is when being water, utilize the transmission speed of sound wave in water constant, and the characteristic of temperature influence not, calculate flow by sound collecting, ultrasonic type heat energy table is that (sound wave is propagated in fluid by measure the mistiming that ultrasound wave propagates in hot water, the downbeam acoustic wave propagation velocity can increase, and countercurrent direction then reduces, and same propagation distance just has the different travel-times).Thereby the relation of utilizing the difference of velocity of propagation and detected fluid flow velocity is asked for flow velocity and is derived flow.Because it measures inside cavity without any movable member,, be difficult for stopping up so the composition or the impurity content of medium do not had strict requirement.
The transducer of the utility model by the user being measured water inlet return water temperature velocity of medium, pipeline, integrating instrument, the heat energy table that gathers together.Thereby it is to utilize ultrasonic flow sensor and temperature sensor measurement water supply flow and confession, the measurement of return water temperature difference and show the instrument of current through the heat energy that heat-exchange system discharged or absorbed that the ultrasound wave heat calculates.
The utility model belongs to nonmetal integral type ultrasonic heat energy meter, and heat energy table table body does not have metal, adopts the nonmetal accessory that is not easy by abominable water quality corrosion to form, as PVC, PPO, PC etc.The utility model can level and vertical the installation.

Claims (9)

1, a kind of integral ultrasonic heat energy meter comprises the housing (1) that contains display part (9), is fitted to intake tunnel (2) and exhalant canal (3) in the housing (1); It is characterized in that: described intake tunnel (2) adopts Ω type structure; In described housing (1) with intake tunnel (2) top duct mutually mean place be furnished with transducer assembling storehouse (4,4`); The position that communicates with intake tunnel (2) and exhalant canal (3) in described housing (1) is furnished with temperature sensor assembling storehouse (5,5`).
2, a kind of integral ultrasonic heat energy meter according to claim 1 is characterized in that: the axis of described transducer assembling storehouse (4,4`) and the axis of intake tunnel (2) top duct are overlapping.
3, a kind of integral ultrasonic heat energy meter according to claim 1 and 2 is characterized in that: the radius of curvature R of each bend of described intake tunnel (2) all equates and satisfies: R 〉=4d, d are the diameter of intake tunnel (2) top duct.
4, a kind of integral ultrasonic heat energy meter according to claim 3 is characterized in that: be furnished with solenoid valve (6) on described intake tunnel (2).
5, a kind of integral ultrasonic heat energy meter according to claim 4 is characterized in that: display part (9) connect with main part (7) activity of housing (1).
6, a kind of integral ultrasonic heat energy meter according to claim 5 is characterized in that: described housing (1) adopts nonmetallic materials to make.
7, a kind of integral ultrasonic heat energy meter according to claim 6 is characterized in that: the port diameter of described intake tunnel (2) is greater than the diameter of intake tunnel (2) top duct.
8, a kind of integral ultrasonic heat energy meter according to claim 7 is characterized in that: be furnished with battery compartment (8) in described housing (1).
9, a kind of integral ultrasonic heat energy meter according to claim 6 is characterized in that: described housing (1) adopts PVC, PPO or PC material.
CNU2007200166820U 2007-12-10 2007-12-10 Integral ultrasound wave heat energy meter Expired - Lifetime CN201149532Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200166820U CN201149532Y (en) 2007-12-10 2007-12-10 Integral ultrasound wave heat energy meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200166820U CN201149532Y (en) 2007-12-10 2007-12-10 Integral ultrasound wave heat energy meter

Publications (1)

Publication Number Publication Date
CN201149532Y true CN201149532Y (en) 2008-11-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101458131B (en) * 2007-12-10 2010-09-29 孙加胜 Integral ultrasonic heat energy meter
CN102706481A (en) * 2012-02-04 2012-10-03 黑龙江大学 Ultrasonic wave heat meter with integrated-type base meter and metering method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101458131B (en) * 2007-12-10 2010-09-29 孙加胜 Integral ultrasonic heat energy meter
CN102706481A (en) * 2012-02-04 2012-10-03 黑龙江大学 Ultrasonic wave heat meter with integrated-type base meter and metering method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20081112

Effective date of abandoning: 20071210