CN203083747U

CN203083747U - Ultrasonic heat meter

Info

Publication number: CN203083747U
Application number: CN 201220741825
Authority: CN
Inventors: 蒋水通
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2013-07-24
Anticipated expiration: 2022-12-28

Abstract

The utility model provides an ultrasonic heat meter, which belongs to the technical field of measuring instruments. The utility model provides a solution for the problem that phenomena like flocculating flow can be easily caused when fluid in a copper tube is measured by the prior ultrasonic heat meter. The ultrasonic heat meter comprises a measurement copper tube and a heat meter body arranged on the measurement copper tube; reflecting columns are respectively arranged, neat two ports of the measurement copper tube, inside the measurement copper tube; inner side walls, corresponding to the reflecting columns, of the measurement copper tube are respectively provided with transducers; the two ports of the measurement copper tube are respectively and fixedly connected with positioning sheets which are located in the measurement copper tube and are sheet-shaped; and the reflecting columns are cylindrical, head ends, fixedly connected with the positioning sheets, of the reflecting columns are conical, and tail ends of the reflecting columns are provided with inclined reflecting surfaces directly facing the transducers. The ultrasonic heat meter has the advantages of high measuring accuracy and the like.

Description

A kind of ultrasonic calorimeter

Technical field

The utility model belongs to the measuring instrument technical field, relates to a kind of calorimeter, particularly a kind of ultrasonic calorimeter.

Background technology

Existing calorimeter has mechanical type calorimeter, electromagnetic type calorimeter, ultrasonic calorimeter etc., because there is mechanical wear in the mechanical type calorimeter, serviceable life is short, there are under the situation of impurity problems such as obstruction easily in fluid in addition, electromagnetic type calorimeter cost height, ultrasonic calorimeter has long service life, metering good reliability and low cost and other advantages, so it is ultrasonic calorimeter obtains popularization more and more widely, also more and more to the design and the improvement of ultrasonic calorimeter.

For example the Chinese patent literature data discloses a kind of ultrasonic calorimeter [application number: 201120146343.0; Granted publication number: CN202101708U], it comprises measures copper pipe and is located at the calorimeter body of measuring on the copper pipe, be provided with mozzle at the middle part of measuring copper pipe, the both ends of mozzle are provided with reflector plate respectively, be respectively equipped with transducer on the madial wall of the measurement copper pipe corresponding with reflector plate, the sidewall of measuring copper pipe offers two installing ports, is fixed with an erecting frame by a pressing plate respectively in the installing port, reflector plate is embedded on the erecting frame, also is provided with O-ring seal between erecting frame and the measurement copper pipe.

The ultrasonic calorimeter of this kind structure has maintenance easy to clean, not susceptible to plugging advantage.But the ultrasonic calorimeter of this kind structure, fluid is being flowed through when measuring reflector plate in the copper pipe, erecting frame, the very big obstruction of mobile generation of reflector plate, erecting frame convection cell, fluid can produce certain backflow, between reflector plate, erecting frame and measurement copper pipe, produce whirlpool, fluid produces the wadding flow phenomenon at this place, thereby the measuring accuracy of ultrasonic calorimeter is reduced.

Summary of the invention

The purpose of this utility model is at the above-mentioned problems in the prior art, provides a kind of measuring accuracy high ultrasonic calorimeter.

The purpose of this utility model can realize by following technical proposal: a kind of ultrasonic calorimeter, comprise and measure copper pipe and be located at the calorimeter body of measuring on the copper pipe, be provided with the reflection post respectively near its two-port place in the described measurement copper pipe, on the madial wall of the measurement copper pipe corresponding, be respectively equipped with transducer with the reflection post, it is characterized in that, the two-port place of described measurement copper pipe all is fixed with to be positioned at measures copper pipe and spacer in the form of sheets, above-mentioned reflection post is cylindric, it is conical with the head end that spacer is connected mutually, tail end have with above-mentioned transducer over against the reflecting surface of inclination.

Head end and spacer that the reflection post of this ultrasonic calorimeter has coned face are connected, the reflection post is fixed on to be measured in the copper pipe, the head end of two reflection posts is all towards the outside of measuring copper pipe end, the reflecting surface of two reflection post tail ends over against be provided with and with transducer also over against setting, signal reflex is received to transducer, the head end of reflection post is conical, fluid in the measurement copper pipe of flowing through is played the effect of drainage, the tail end of reflection post has the surface of emission, reflecting surface is an angle with the longitudinal center line of reflection post, fluid in the measurement copper pipe of flowing through is also played the effect of drainage, fluid is flowed through and is measured flowing steadily in the copper pipe, can not produce backflow, phenomenons such as wadding stream, it is stable that sound wave transmits in fluid, the validity height, the measuring accuracy height of ultrasonic calorimeter.

In above-mentioned a kind of ultrasonic calorimeter, offer draw-in groove respectively on the madial wall at the two-port place of described measurement copper pipe, the quantity of described draw-in groove is twice and vertically over against setting, and the dual-side of above-mentioned spacer is embedded into to be made spacer and measure copper pipe and be connected mutually in the draw-in groove.During installation, make spacer vertically to the draw-in groove at locating tab assembly copper pipe end place, the dual-side of spacer is embedded in the draw-in groove, and spacer is pushed into the assigned address of measuring in the copper pipe, spacer is connected mutually with measuring copper pipe, finishes the installation of spacer, easy for installation, vertically the draw-in groove that is provided with guarantees that keeper vertically is provided with, and the reflecting surface on the assurance reflection post is over against setting.

As another kind of situation, in above-mentioned a kind of ultrasonic calorimeter, described spacer is connected with the measurement copper pipe mutually by welding.The use welding method is connected, firmly the degree height.

In above-mentioned a kind of ultrasonic calorimeter, described reflection post and spacer are made by stainless steel material.Stainless steel material has good environmental protection, advantage such as high temperature resistant, low temperature resistant, and all steel design reduces expanding with heat and contract with cold that the reflection post brought under different temperatures, thereby guarantees validity, the stability of sonic transmissions, measuring accuracy height.

In above-mentioned a kind of ultrasonic calorimeter, described reflection post and spacer are connected by welding.During production, earlier spacer and the welding of reflection post are connected, easy to connect, firm degree height.

In above-mentioned a kind of ultrasonic calorimeter, has through hole on the described spacer.Measure on the sidewall of copper pipe and have a side opening, temperature sensor extend into by this side opening and measures in the copper pipe, and the front end of temperature sensor is located in the through hole of spacer, and the existence of through hole can not bump temperature sensor and spacer.

In above-mentioned a kind of ultrasonic calorimeter, described reflecting surface is 40 °-50 ° with the angle of measuring the copper pipe central axis.Transducer is over against the reflecting surface of reflection on the post, and the ultrasound wave that transducer is launched is 90 degree right angles through reflector plate and is delivered to another transducer continuously, and ultrasound wave is horizontal transmission in fluid, and the transducer acquired signal is accurate, in the actual production, is made generally in 45 °.

Compared with prior art, the ultrasonic calorimeter that provides of the utility model has the following advantages:

1, the reflection post of this ultrasonic calorimeter is cylindric, it is conical that head end is, tail end has the reflecting surface of inclination, the fluid of measuring copper pipe to flowing through plays the effect of drainage, fluid is flowed through and flow steadily the phenomenons such as stream that can not reflux, wad a quilt with cotton, the good stability that sound wave transmits when measuring copper pipe in fluid, the validity height, calorimeter measuring accuracy height.

2, reflection post of this ultrasonic calorimeter and spacer all adopt stainless steel material to make, has good environmental protection, high temperature resistant and low temperature resistant advantage, what minimizing reflection post was brought under different temperatures expands with heat and contract with cold, thereby guarantee validity, the stability of sonic transmissions, calorimeter measuring accuracy height.

Description of drawings

Fig. 1 is the one-piece construction cut-open view of this ultrasonic calorimeter.

Fig. 2 is the one-piece construction synoptic diagram of this ultrasonic calorimeter reflection post and spacer.

Fig. 3 is the side view that this ultrasonic calorimeter is measured copper pipe.

Among the figure, 1, measure copper pipe; 2, calorimeter body; 3, reflection post; 3a, reflecting surface; 4, transducer; 5, spacer; 5a, through hole; 6, draw-in groove.

Embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

This ultrasonic calorimeter is measured flow by hyperacoustic method, and shows that the fluid heat-exchange system of flowing through discharges or absorb hot energy.

As shown in Figure 1, it comprises measurement copper pipe 1, calorimeter body 2, reflection post 3, transducer 4 and spacer 5.

Measure copper pipe 1 in a tubular form, an end is a water inlet end, and the other end is the water side, and its top has a pair of mounting hole, and a pair of transducer 4 is mounted and fixed in this mounting hole, and two transducers 4 link to each other by a lead, and the top of mounting hole also is provided with calorimeter body 2.

All has a reflection post 3 under each transducer 4, as shown in Figure 2, reflection post 3 is made by stainless steel material, be cylindric, it is conical with the head end that spacer 5 is connected mutually, and its tail end has the reflecting surface 3a of inclination, in the present embodiment, reflecting surface 3a is 45 ° with the angle of measuring copper pipe 1 central axis, two reflecting surface 3a are over against setting, and the inclined-plane of reflecting surface 3a up, over against transducer 4, this kind structure, sound wave is propagated in fluid, is 90 ° of refractions through reflecting surface 3a, and transducer 4 is received, sonic propagation is effective, and error is little.The head end of reflection post 3 is towards the outside of measuring copper pipe 1 port, head end is the effect that the conical fluid of measuring copper pipe 1 to flowing through plays drainage, the same convection cell of reflecting surface 3a plays the effect of drainage, the fluid that prevents to measure in the copper pipe 1 produces phenomenons such as the stream that refluxes, wads a quilt with cotton, sound wave transmits stable in fluid, the validity height, the measuring accuracy height of ultrasonic calorimeter.

As shown in Figure 3, all offer a pair of draw-in groove 6 on the madial wall at the two-port place of measurement copper pipe 1, and the position of twice draw-in groove 6 is vertically over against setting, the width of the width of draw-in groove 6 and spacer 5 is complementary, spacer 5 in the form of sheets, make by stainless steel material, spacer 5 is triangular in shape towards one side of measuring copper pipe 1 inboard, its this side is connected by welding with reflection post 3, during installation, the both sides of spacer 5 are embedded in the draw-in groove 6 of measuring copper pipe 1, and promote spacer 5 and make it reach assigned address, the reflecting surface 3a that promptly reflects post 3 be positioned at transducer 4 under, the dual-side of spacer 5 and draw-in groove 6 clamping mutually, spacer 5 is connected mutually with measuring copper pipe 1, measures in the copper pipe 1 thereby reflection post 3 is fixed on.

Have through hole 5a on the spacer 5, have the side opening that is used to wear temperature sensor on the sidewall of measurement copper pipe 1, temperature sensor passes side opening, and its top is positioned at through hole 5a.

Embodiment 2

Present embodiment is basic identical with structure and the principle of embodiment 1, and different places are that the spacer 5 of present embodiment is to be connected mutually with measurement copper pipe 1 by the mode of welding.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used terms such as measurement copper pipe 1, calorimeter body 2, reflection post 3, reflecting surface 3a, transducer 4, spacer 5, through hole 5a, draw-in groove 6 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. ultrasonic calorimeter, comprise and measure copper pipe (1) and be located at the calorimeter body of measuring on the copper pipe (1) (2), be provided with reflection post (3) respectively near its two-port place in the described measurement copper pipe (1), on the madial wall of the measurement copper pipe (1) corresponding, be respectively equipped with transducer (4) with reflection post (3), it is characterized in that, the two-port place of described measurement copper pipe (1) all is fixed with to be positioned at measures copper pipe (1) and spacer in the form of sheets (5), above-mentioned reflection post (3) is cylindric, it is conical with the head end that spacer (5) is connected mutually, tail end have with above-mentioned transducer (4) over against the reflecting surface (3a) of inclination.

2. a kind of ultrasonic calorimeter according to claim 1, it is characterized in that, offer draw-in groove (6) on the madial wall at the two-port place of described measurement copper pipe (1) respectively, the quantity of described draw-in groove (6) is twice and vertically over against setting, and the dual-side of above-mentioned spacer (5) is embedded into to be made spacer (5) and measure copper pipe (1) and be connected mutually in the draw-in groove (6).

3. a kind of ultrasonic calorimeter according to claim 1 is characterized in that, described spacer (5) is connected with measurement copper pipe (1) mutually by welding.

4. a kind of ultrasonic calorimeter according to claim 1 is characterized in that, described reflection post (3) and spacer (5) are made by stainless steel material.

5. a kind of ultrasonic calorimeter according to claim 1 is characterized in that, described reflection post (3) and spacer (5) are connected by welding.

6. a kind of ultrasonic calorimeter according to claim 1 is characterized in that, has through hole (5a) on the described spacer (5).

7. a kind of ultrasonic calorimeter according to claim 1 is characterized in that, described reflecting surface (3a) is 40 °-50 ° with the angle of measuring copper pipe (1) central axis.