CN207816487U - A kind of ultrasonic calorimeter - Google Patents

Abstract

The utility model belongs to metrical instrument technical field more particularly to a kind of ultrasonic calorimeter.Ultrasonic calorimeter includes horizontally disposed measurement pipe, two tube body, two reflection subassemblies and flow straightener for reflecting ultrasonic wave for installing ultrasonic transducer；Two tube bodies are located at the inlet end and an outlet end of measurement pipe；Each tube body is vertically arranged, and inner cavity and the inner cavity of measurement pipe connect；Reflection subassembly is corresponded with tube body, including holder and reflector plate；In the vertical direction, the top of holder is located in the inner cavity of corresponding tube body, and is detachably connected with tube body；The lower part of holder is located in the inner cavity of measurement pipe, and is connected with measurement pipe；Reflector plate is located in the inner cavity of measurement pipe, and hinged with holder；Flow straightener is connected with the input end of measurement pipe.The ultrasonic calorimeter is easy to disassemble or adjusts reflection subassembly, time saving and energy saving, saves maintenance cost, and have rectification function, improves the measurement accuracy of calorimeter.

Description

A kind of ultrasonic calorimeter

Technical field

The utility model belongs to metrical instrument technical field more particularly to a kind of ultrasonic calorimeter.

Background technology

Calorimeter be calculate heat instrument, be used primarily on heat supplying pipeline, principle be by the instantaneous flow of fluid with Temperature difference is multiplied, then the cumulative time, you can obtains the heat used in a period of time.Existing calorimeter is broadly divided into machinery Formula, electromagnetic type and ultrasonic type three types, mechanical heat meter are easy to be influenced by heating medium, block or become frequent occurrence Shape, abrasion is big, service life is short.Electromagnetic type calorimeter is complicated, of high cost, is easy by electromagnetic interference influence measurement accuracy. Widely used at present is ultrasonic calorimeter, has good heat-resisting, abrasion resistance properties, and high certainty of measurement, performance are steady Fixed, service life is long.

Ultrasonic calorimeter is divided into according to measuring principle as direct-injection type and reflective, wherein direct-injection type ultrasonic calorimeter survey Amount stroke is short, and precision is relatively low, therefore reflection-type ultrasonic wave heat meter receives more and more attention.Reflection-type ultrasonic wave heat meter Difference calculating flow velocity when being propagated in a fluid using ultrasonic wave, by measuring spread speed and spread speed against the current downstream, then Calculate fluid flow.

Currently used reflection-type ultrasonic wave heat meter includes a pair of of ultrasonic transducer and a pair of of reflector plate, wherein ultrasound Ultrasonic wave, reflector plate are used for the ultrasonic wave of reflectance ultrasound wave transducer transmitting to wave transducer for transmitting and receiving.Reflector plate Installation site has vital effect for measurement accuracy, and reflector plate is generally mounted on by fixing bracket in the prior art In pipeline, after a period of use, deformation is will produce in the impact lower bracket of fluid, so as to cause reflector plate angle offset, shadow Measurement accuracy is rung, molding is even integrally machined since holder is fixedly connected with pipeline, leads to not adjustment repair, and entirety is more Heat exchange scale can increase great amount of cost.

In addition, during use, the flow direction of fluid is disorderly, is easy to form vortex, disorderly fluid impact branch at holder Frame can cause reflector plate to vibrate, and cause fluid that violent pulsation occurs, and to influence the spread speed of ultrasonic wave, eventually lead to heat The measurement accuracy of scale reduces.

Utility model content

In view of this, the utility model embodiment provides a kind of ultrasonic calorimeter, can quickly adjust reflector plate or Holder, it is time saving and energy saving, maintenance cost is saved, and there is flow stabilizing function, improves measurement accuracy.

In order to achieve the above objectives, technical solution used by the utility model is：

A kind of ultrasonic calorimeter, including：

Horizontally disposed measurement pipe；

Two tube bodies for installing ultrasonic transducer；Two tube bodies are located at the input end of the measurement pipe With the outlet end of the measurement pipe；Each tube body is vertically arranged, and inner cavity and the inner cavity of the measurement pipe connect；

Two reflection subassemblies for reflecting ultrasonic wave；The reflection subassembly is corresponded with the tube body；It is each described Reflection subassembly includes holder and reflector plate；In the vertical direction, the top of the holder is located in the inner cavity of corresponding tube body, And it is detachably connected with the tube body；The lower part of the holder is located in the inner cavity of the measurement pipe, and with the measurement pipe phase Even；The reflector plate is located in the inner cavity of the measurement pipe, and is hinged with the holder；With

Streamlined flow straightener；The flow straightener is connected with the input end of the measurement pipe.

Further, it is equipped with positioning ring groove on the madial wall of each tube body；The measurement pipe and the tube body phase To madial wall be equipped with limiting slot；

The holder includes：

Fixed ring is mutually clamped with the positioning ring groove；

Two struts being vertically arranged；In the vertical direction, the top of each strut is connected with the fixed ring, And bottom end extends in the inner cavity of the measurement pipe；Two struts are arranged relative to the axisymmetrical of the fixed ring；With

Connecting rod, both ends are connected with the bottom end of two struts respectively, and are mutually clamped with the limiting slot；The connection The shape of bar is consistent with the shape of the limiting slot.

Further, it is equipped with the sliding slot being vertically arranged on the madial wall of each tube body；In the vertical direction, described Sliding slot is located at the top of the positioning ring groove；

The holder further includes sliding block；In the vertical direction, the sliding block is located at the top of the fixed ring, and bottom end with The fixed ring is connected；The sliding block is corresponding with the sliding slot.

Further, the reflector plate is located between two struts, and is hinged with two struts；

The reflecting surface of each reflector plate is in 45 ° of angles with the axis of the measurement pipe, and with corresponding tube body Axis is in 45 ° of angles.

Further, the flow straightener includes：

Horizontally disposed shell, first end are fixedly connected with the measurement pipe, and second end is for connecting water inlet pipe；

Barretter is located in the inner cavity of the shell, and axis is overlapped with the axis of the shell；With

The equally distributed gusset of multiple circumferential directions along the barretter；The first end of each gusset and the shell Madial wall is fixedly connected, and second end is fixedly connected with the lateral wall of the barretter.

Further, the shell is in coniform, and the diameter of second end is more than the diameter of first end；The barretter with The shape of the shell is consistent；

The axis of the shell is consistent with the axis of the measurement pipe.

Further, the ultrasonic calorimeter further includes ultrasonic transducer；

The ultrasonic transducer includes：

Shell；

Two hollow connector sleeves；The connector sleeve is corresponded with the tube body；In the vertical direction, each company The top of female connector is connected with the shell, and bottom end is detachably connected with corresponding tube body；With

The ultrasonic element of two ultrasonic waves for transmitting and receiving；The ultrasonic element is a pair of with the connector sleeve one It answers, and each ultrasonic element is respectively positioned in the cavity of the shell.

Further, each ultrasonic element includes：

The piezoceramic disc energy converter of ultrasonic signal for transmitting and receiving；With

Array receiver for receiving doppler echo signal；The array receiver received signal frequency band is described Except the frequency band of piezoceramic disc energy converter.

Further, the ultrasonic calorimeter further includes two temperature sensors；Two temperature sensor difference Positioned at the outlet end of the input end and the measurement pipe of the measurement pipe.

Further, the ultrasonic calorimeter further includes：

Table body is connected with the shell of the ultrasonic transducer；

Processing unit for calculating heat；The processing unit and each ultrasonic element and each temperature Sensor is connected, and in the cavity of the table body；With

Display screen is located on the lateral wall of the table body, and can show the calculated thermal data of the processing unit.

By adopting the above-described technical solution, the technological progress that the utility model obtains is：

In horizontally disposed measurement Bottomhole pressure, ultrasonic transducer ultrasonic signal for transmitting and receiving surpasses hot water Acoustic signals vertically advance in tube body, changed course is to propagate in the horizontal direction after reflector plate reflects.Two reflector plates Reflecting surface be oppositely arranged, the ultrasonic measurement spread speed downstream being located at after the reflector plate reflection of measurement pipe input end is located at Ultrasonic measurement spread speed against the current after the reflector plate reflection of measurement pipe outlet end, by measure downstream spread speed with against the current The difference of spread speed calculates flow velocity, then calculates fluid flow.

Holder supports reflector plate, and can dismantle or install along tube body.After a period of use, in fluid impact lower bracket Be deformed or reflector plate surface attachment incrustation scale when, holder can be disassembled out of tube body, adjusts or repair.Current stabilization Device is connected with the input end of measurement pipe, plays rectified action, reduces the pulsation that disorderly flow generates.

It is using advantageous effect caused by above-mentioned technical proposal：Ultrasonic calorimeter in this programme it is easy to disassemble or Reflection subassembly is adjusted, it is time saving and energy saving, save maintenance cost.In addition, the ultrasonic calorimeter in this programme has rectification function, keep away Exempt from disorderly fluid and form vortex at holder, to improve the measurement accuracy of calorimeter.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is the schematic diagram for the ultrasonic calorimeter that the utility model embodiment provides；

Fig. 2 is the internal structure schematic diagram for the measurement pipe that the utility model embodiment provides；

Fig. 3 is the assembling schematic diagram for the reflection subassembly that the utility model embodiment provides；

Fig. 4 is the schematic diagram for the flow straightener that the utility model embodiment provides；

Fig. 5 is the side view for the flow straightener that the utility model embodiment provides；

Fig. 6 is the assembling schematic diagram for the flow straightener that the utility model embodiment provides；

Fig. 7 is the schematic diagram for the ultrasonic transducer that the utility model embodiment provides.

Reference sign：

10- measurement pipes, 11- limiting slots, 20- tube bodies, 21- positioning ring grooves, 22- sliding slots, 30- reflection subassemblies, 31- holders, 311- fixed rings, 312- struts, 313- connecting rods, 314- sliding blocks, 32- reflector plates, 40- flow straighteners, 41- shells, 42- current stabilizations Pipe, 43- gussets, 50- ultrasonic transducers, 51- shells, 52- connector sleeves, 60- temperature sensors, 70- table bodies, 71- display screens, 80- water inlet pipes.

Specific implementation mode

In being described below, for illustration and not for limitation, it is proposed that such as tool of particular system structure, technology etc Body details, to understand thoroughly the utility model embodiment.However, it will be clear to one skilled in the art that there is no these The utility model can also be realized in the other embodiments of detail.In other situations, omit to well-known system, The detailed description of apparatus, circuit and method, in case unnecessary details interferes the description of the utility model.

In order to illustrate technical solution described in the utility model, illustrated below by specific embodiment.

The utility model embodiment provides a kind of ultrasonic calorimeter, in conjunction with shown in Fig. 1 and Fig. 2, ultrasonic calorimeter Including horizontally disposed measurement pipe, 10, two are used to reflect ultrasonic wave for installing the tube body 20, two of ultrasonic transducer 50 Reflection subassembly 30 and streamlined flow straightener 40.Two tube bodies 20 are located at the input end and measurement pipe 10 of measurement pipe 10 Outlet end.Each tube body 20 is vertically arranged, and inner cavity and the inner cavity of measurement pipe 10 connect.Reflection subassembly 30 and tube body 20 It corresponds.Each reflection subassembly 30 includes holder 31 and reflector plate 32.In the vertical direction, the top of holder 31 be located at pair In the inner cavity for the tube body 20 answered, and it is detachably connected with tube body 20.The lower part of holder 31 is located in the inner cavity of measurement pipe 10, and with Measurement pipe 10 is connected.Reflector plate 32 is located in the inner cavity of measurement pipe 10, and is hinged with holder 31.Flow straightener 40 and measurement pipe 10 Input end be connected.

Measurement pipe 10 is horizontally disposed, hot water flowing in measurement pipe 10.Ultrasonic transducer 50 surpasses for transmitting and receiving Acoustic signals, since ultrasonic transducer 50 is mounted on tube body 20 and tube body 20 is vertically arranged and the inner cavity of tube body 20 and survey The inner cavity of buret 10 connects, so ultrasonic signal vertically advances in tube body 20, changes after the reflection of reflector plate 32 To propagate in the horizontal direction, that is, ultrasonic signal is propagated in the inner cavity of measurement pipe 10 after reflecting.

The reflecting surface of two reflector plates 32 is oppositely arranged, the ultrasound being located at after the reflection of reflector plate 32 of 10 input end of measurement pipe Wave measurement spread speed downstream, be located at measurement pipe outlet end reflector plate 32 reflect after ultrasonic measurement spread speed against the current, By measuring spread speed downstream and against the current the difference calculating flow velocity of spread speed, fluid flow is then calculated.

Holder 31 supports reflector plate 32, and can dismantle or install along tube body 20.Reflector plate 32 is hinged with holder 31, therefore The angle between reflector plate 32 and horizontal plane and perpendicular can be adjusted.The installation site of reflector plate 32 is for measurement accuracy There is vital effect, reflector plate 32 is generally mounted on by fixing bracket in pipeline in the prior art, when using one section Between after, will produce accumulated deformation in the impact lower bracket of fluid, so as to cause 32 angle offset of reflector plate, influence measurement accuracy, Even it can not detect ultrasonic signal.In addition, the water body in heating pipeline contains incrustation scale or impurity, incrustation scale or impurity exist for a long time 32 surface of reflector plate is precipitated, and can reduce the reflecting properties of reflector plate 32, and then influence measurement accuracy.Since holder 31 and pipeline are solid Fixed connection is even integrally machined molding, leads to not adjustment repair, and integral replacing calorimeter can increase great amount of cost.

Therefore, holder 31 and tube body 20 are set as being detachably connected in the present embodiment, and by reflector plate 32 and holder 31 It is hinged, convenient for periodically disassembling holder 31 out of tube body, the behaviour in service of holder 31 and reflector plate 32 is checked, when holder 31 It is deformed, 32 surface of reflector plate attachment incrustation scale or when 32 angle change of reflector plate, can adjust or repair.

Flow straightener 40 is connected with the input end of measurement pipe 10, plays rectified action, reduces the pulsation that disorderly flow generates, Also fluid can be avoided to generate vortex at reflector plate 32, to make fluid steady flow in the horizontal direction, ultrasonic wave exists at this time It is propagated in the horizontal direction in fluid, loss very little in the vertical direction even can be ignored, accurate suitable to measure Water spread speed and against the current spread speed, accurate heat at final calculating.

As a kind of embodiment, in conjunction with shown in Fig. 2 and Fig. 3, positioning ring groove 21 is equipped on the madial wall of each tube body 20. The madial wall opposite with tube body 20 of measurement pipe 10 is equipped with limiting slot 11.Holder 31 includes what fixed ring 311, two was vertically arranged Strut 312 and connecting rod 313.Fixed ring 311 is clamped with 21 phase of positioning ring groove.In the vertical direction, the top of each strut 312 It is connected with fixed ring 311, and bottom end extends in the inner cavity of measurement pipe 10.Axis of two struts 312 relative to fixed ring 311 Line is symmetrical arranged.The both ends of connecting rod 313 are connected with the bottom end of two struts 312 respectively, and are clamped with 11 phase of limiting slot.Connection The shape of bar 313 is consistent with the shape of limiting slot 11.

Fixed ring 311 is connected in positioning ring groove 21, and connecting rod 313 is connected in limiting slot 11, thus holder 31 it is upper, Lower both ends are fixed, and to reduce the vibration of the holder 31 when fluid impact, in addition reflector plate 32 is fixed on holder 31, because This can also reduce vibration of the reflector plate 32 by fluid impact when, to ensure measurement accuracy.In addition, holder 31 and tube body 20 are removable Connection is unloaded, therefore holder 31 can be dismantled or be installed along tube body 20, convenient for adjusting or repairing.

In the present embodiment, in conjunction with shown in Fig. 2 and Fig. 3, the sliding slot being vertically arranged is equipped on the madial wall of each tube body 20 22.In the vertical direction, sliding slot 22 is located at the top of positioning ring groove 21.Holder 31 further includes sliding block 314.In the vertical direction, Sliding block 314 is located at the top of fixed ring 311, and bottom end is connected with fixed ring 311.Sliding block 314 is corresponding with sliding slot 22.

In the vertical direction, sliding slot 22 is located at the top of positioning ring groove 21, and top is concordant with the top of tube body 20.Work as peace When filling holder 31, the alignment sliding slot 22 of sliding block 314 is pushed down on until fixed ring 311 is stuck in positioning ring groove 21, holder at this time The connecting rod 313 of 31 bottoms is stuck in limiting slot 11.Sliding slot 22 coordinates with sliding block 314, and the top of limit bracket 31 is around tube body 20 Axis rotation.Fixed ring 311 coordinates with positioning ring groove 21, and limit bracket 31 is vertically slided.Connecting rod 313 and limit Slot 11 coordinates, and the lower part of limit bracket 31 is rotated around the axis of tube body 20.To reduce impact of the fluid to holder 31.

In the present embodiment, in conjunction with shown in Fig. 2 and Fig. 3, reflector plate 32 is located between two struts 312, and with two struts 312 are hinged, therefore can adjust the angle of reflector plate 32 and horizontal plane.When strut 312 or reflector plate 32 are for a long time by fluid When impact deforms, the angle between reflector plate 32 and the axis of measurement pipe 10 or the folder between the axis of tube body 20 Angle also changes therewith, causes the propagation path of ultrasonic wave to change, causes energy expenditure, so as to cause the ultrasound of measurement Velocity of wave propagation changes, and causes the measurement error of heat.Therefore, it is necessary to periodically by holder 31 disassemble check strut 312 or The behaviour in service of reflector plate 32 adjusts the angle of reflector plate 32 and horizontal plane.

The reflecting surface of each reflector plate 32 is in 45 ° of angles with the axis of measurement pipe 10, and with the axis of corresponding tube body 20 Line is in 45 ° of angles, and ultrasonic wave is vertically beaten on reflector plate 32 at this time, switchs to propagate in the horizontal direction after reflection, i.e., Fluid in measurement pipe 10 is propagated, to measure the spread speed downstream and spread speed against the current of ultrasonic wave.Such as reflector plate 32 Angle between the axis of measurement pipe 10 changes, and can cause the energy loss of ultrasonic wave in fluid vertically, to Cause spread speed to change, influences measurement accuracy.

As a kind of embodiment, in conjunction with shown in Fig. 4, Fig. 5 and Fig. 6, flow straightener 40 includes horizontally disposed shell 41, current stabilization Pipe 42 and the equally distributed gusset of multiple circumferential directions along barretter 42 43.The first end of shell 41 is fixedly connected with measurement pipe 10, Second end is for connecting water inlet pipe.Barretter 42 is located in the inner cavity of shell 41, and axis is overlapped with the axis of shell 41.Each The first end of gusset 43 is fixedly connected with the madial wall of shell 41, and second end is fixedly connected with the lateral wall of barretter 42.

The inner cavity of shell 41 is divided into multiple mutually independent cavitys by barretter 42 and each gusset 43, that is, is divided into multiple Fluid course.When disorderly fluid passes through, be carded to multi-strand flow, the madial wall of shell 41, each gusset 43 side wall with And the side wall of barretter 42 all plays restriction effect to the pulsation of fluid, the flowing in the horizontal direction for making flow smooth out, to keep away Exempt to form vortex in measurement pipe 10.Gusset 43 plays fixed function to barretter 42.

In the present embodiment, in conjunction with shown in Fig. 4, Fig. 5 and Fig. 6, shell 41 is in coniform, and the diameter of second end is more than first The diameter at end effectively reduces the fluctuation of fluid to play the role of current limliting.Barretter 42 is consistent with the shape of shell 41, subtracts Installation easy to process while small fluid fluctuation.The axis of shell 41 is consistent with the axis of measurement pipe 10, keeps fluid flowing steady It is smooth, and be easily installed.

As a kind of embodiment, in conjunction with shown in Fig. 1 and Fig. 7, ultrasonic calorimeter further includes ultrasonic transducer 50.Ultrasound Wave transducer 50 includes the ultrasonic element of the ultrasonic wave for transmitting and receiving of 51, two hollow connector sleeves 52 of shell and two Part.Connector sleeve 52 is corresponded with tube body 20.In the vertical direction, the top of each connector sleeve 52 is connected with shell 51, and bottom End is detachably connected with corresponding tube body 20.The ultrasonic element is corresponded with connector sleeve 52, and each ultrasonic wave Element is respectively positioned in the cavity of shell 51.

Ultrasonic signal, a ultrasonic element correspond to a connector sleeve 52, surpass ultrasonic element for transmitting and receiving Acoustic signals are propagated along the inner cavity of connector sleeve 52.Each ultrasonic element is respectively positioned in the cavity of shell 51, shell 51 and two Connector sleeve 52 is connected, and connector sleeve 52 is detachably connected with tube body 20, therefore when ultrasonic transducer 50 is needed replacing or proofreaded, It can conveniently be disassembled from tube body 20.

In the present embodiment, each ultrasonic element includes the piezoelectric ceramics of ultrasonic signal for transmitting and receiving Disk energy converter and array receiver for receiving doppler echo signal.The array receiver received signal frequency band exists Except the frequency band of the piezoceramic disc energy converter.

In the present embodiment, in conjunction with shown in Fig. 1, ultrasonic calorimeter further includes two temperature sensors 60.Two temperature pass Sensor 60 is located at the outlet end of the input end and measurement pipe 10 of measurement pipe 10.Correspondingly, the side wall of measurement pipe 10 is equipped with Two temperature sensor location holes.It is used to measure inflow temperature positioned at the temperature sensor 60 of the input end of measurement pipe 10, be located at For the temperature sensor 60 of the outlet end of measurement pipe 10 for measuring leaving water temperature, temperature difference is multiplied with flow can be obtained transient heat Magnitude.

In the present embodiment, in conjunction with shown in Fig. 1, ultrasonic calorimeter further includes table body 70, the processing list for calculating heat Member and display screen 71.Table body 70 is connected with the shell 51 of ultrasonic transducer 50.The processing unit and each ultrasonic wave Element is connected with each temperature sensor 60, and in the cavity of table body 70.Display screen 71 is located on the lateral wall of table body 70, And it can show the calculated thermal data of the processing unit.

Preferably, microcontroller may be used in processing unit.Processing unit receives the signal of ultrasonic element, to calculate Ultrasonic wave spread speed and spread speed, and then calculating outflow against the current, while processing unit reception temperature sensor 60 downstream Signal, to calculate the temperature difference between inflow temperature and leaving water temperature, the temperature difference is multiplied with flow can be obtained instantaneous heat quantity Value, and shown by display screen 71.

Ultrasonic calorimeter in this programme is easy to disassemble or adjusts reflection subassembly, time saving and energy saving, saves maintenance cost.Separately Outside, the ultrasonic calorimeter in this programme has rectification function, avoids disorderly fluid from forming vortex at holder, to improve The measurement accuracy of calorimeter.

Embodiment described above is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to before Embodiment is stated the utility model is described in detail, it will be understood by those of ordinary skill in the art that：It still can be with Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；And These modifications or replacements, the spirit for various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution And range, it should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of ultrasonic calorimeter, which is characterized in that including：

Horizontally disposed measurement pipe；

Two tube bodies for installing ultrasonic transducer；Two tube bodies are located at input end and the institute of the measurement pipe State the outlet end of measurement pipe；Each tube body is vertically arranged, and inner cavity and the inner cavity of the measurement pipe connect；

Two reflection subassemblies for reflecting ultrasonic wave；The reflection subassembly is corresponded with the tube body；Each reflection Component includes holder and reflector plate；In the vertical direction, the top of the holder is located in the inner cavity of corresponding tube body, and with The tube body is detachably connected；The lower part of the holder is located in the inner cavity of the measurement pipe, and is connected with the measurement pipe；Institute It states reflector plate to be located in the inner cavity of the measurement pipe, and is hinged with the holder；With

Streamlined flow straightener；The flow straightener is connected with the input end of the measurement pipe.

2. ultrasonic calorimeter according to claim 1, it is characterised in that：It is equipped on the madial wall of each tube body Positioning ring groove；The measurement pipe madial wall opposite with the tube body is equipped with limiting slot；

The holder includes：

Fixed ring is mutually clamped with the positioning ring groove；

Two struts being vertically arranged；In the vertical direction, the top of each strut is connected with the fixed ring, and bottom End extends in the inner cavity of the measurement pipe；Two struts are arranged relative to the axisymmetrical of the fixed ring；With

Connecting rod, both ends are connected with the bottom end of two struts respectively, and are mutually clamped with the limiting slot；The connecting rod Shape is consistent with the shape of the limiting slot.

3. ultrasonic calorimeter according to claim 2, it is characterised in that：It is equipped on the madial wall of each tube body The sliding slot being vertically arranged；In the vertical direction, the sliding slot is located at the top of the positioning ring groove；

The holder further includes sliding block；In the vertical direction, the sliding block is located at the top of the fixed ring, and bottom end with it is described Fixed ring is connected；The sliding block is corresponding with the sliding slot.

4. ultrasonic calorimeter according to claim 2, it is characterised in that：The reflector plate be located at two struts it Between, and be hinged with two struts；

The reflecting surface of each reflector plate is in 45 ° of angles with the axis of the measurement pipe, and with the axis of corresponding tube body In 45 ° of angles.

5. ultrasonic calorimeter according to claim 1, which is characterized in that the flow straightener includes：

Horizontally disposed shell, first end are fixedly connected with the measurement pipe, and second end is for connecting water inlet pipe；

Barretter is located in the inner cavity of the shell, and axis is overlapped with the axis of the shell；With

The equally distributed gusset of multiple circumferential directions along the barretter；The inside of the first end and the shell of each gusset Wall is fixedly connected, and second end is fixedly connected with the lateral wall of the barretter.

6. ultrasonic calorimeter according to claim 5, it is characterised in that：The shell is in coniform, and second end Diameter is more than the diameter of first end；The barretter is consistent with the shape of the shell；

The axis of the shell is consistent with the axis of the measurement pipe.

7. ultrasonic calorimeter according to claim 1, it is characterised in that：It further include ultrasonic transducer；

The ultrasonic transducer includes：

Shell；

Two hollow connector sleeves；The connector sleeve is corresponded with the tube body；In the vertical direction, each connector sleeve Top be connected with the shell, and bottom end is detachably connected with corresponding tube body；With

The ultrasonic element of two ultrasonic waves for transmitting and receiving；The ultrasonic element is corresponded with the connector sleeve, And each ultrasonic element is respectively positioned in the cavity of the shell.

8. ultrasonic calorimeter according to claim 7, which is characterized in that each the ultrasonic element includes：

The piezoceramic disc energy converter of ultrasonic signal for transmitting and receiving；With

Array receiver for receiving doppler echo signal；The array receiver received signal frequency band is in the piezoelectricity Except the frequency band of ceramic disk energy converter.

9. ultrasonic calorimeter according to claim 7, it is characterised in that：Ultrasonic calorimeter further includes that two temperature pass Sensor；Two temperature sensors are located at the outlet end of the input end and the measurement pipe of the measurement pipe.

10. ultrasonic calorimeter according to claim 9, which is characterized in that ultrasonic calorimeter further includes：

Table body is connected with the shell of the ultrasonic transducer；

Processing unit for calculating heat；The processing unit and each ultrasonic element and each temperature sensing Device is connected, and in the cavity of the table body；With

Display screen is located on the lateral wall of the table body, and can show the calculated thermal data of the processing unit.