CN208672059U - A kind of fluid flow detection device - Google Patents

Abstract

This application discloses a kind of fluid flow detection device, the fluid flow detection device includes: orthobaric volume container, wherein the bottom surface of orthobaric volume container offers liquid stream opening, and liquid stream opening is connected with the first opening control switch；It is fixedly arranged in orthobaric volume container and the first liquid sense contact with the bottom surface flush of orthobaric volume container, and is fixedly arranged on the second liquid sense contact of orthobaric volume container inner wall；The logic controller PLC being electrically connected with the first opening control switch, the first liquid sense contact and second liquid sense contact；The timer being electrically connected with PLC.The technical solution of the application can obtain the liquid stream time of accurate fluid to be measured, to improve the measurement accuracy to fluid to be measured.

Description

A kind of fluid flow detection device

Technical field

This application involves measuring equipment technical field more particularly to a kind of fluid flow detection devices.

Background technique

The device of flow as metering working fluid, fluid flow detection device is widely used in industrial each Field.Fluid flow is detected by fluid flow detection device, the flow velocity and flow of adjustment working fluid, Jin Erli can be conducive to In industrial orderly progress.

Conventional fluid flow detection device is usually socketed on the exit of fluid to be measured bleeder, sets in its valve body Test the speed rotor, and valve body is externally provided with metering circuit plate, when there is liquid outflow, liquid-driving test the speed rotor rotation, metering circuit Plate obtains the turnning circle for the rotor that tests the speed, to obtain the flow of metering liquid.But different fluid to be measured bleeders go out Mouth diameter is different, and fluid flow detection device is exported with it and might not be exactly matched.

In order to solve this problem, related technical personnel usually place in the lower section of fluid to be measured bleeder in the prior art Standard metering container with predetermined volume.When needing gauge fluid flow, when technical staff holds timer, until standard When measuring container is full, terminate timing, to obtain fluid flow.However, this metering method to the degree of control of timing time not Height causes the measuring accuracy of fluid flow lower, seriously affects the orderly progress of subsequent production.

Utility model content

This application provides a kind of fluid flow detection devices, to solve timing time in existing fluid flow detection device Accuracy is not high, the lower problem of liquid flow measurement precision.

This application provides a kind of fluid flow detection devices, comprising:

Orthobaric volume container, wherein the bottom surface of the orthobaric volume container offers liquid stream opening, and the liquid stream opening connects It is connected to the first opening control switch；It is fixedly arranged in the orthobaric volume container and equal with the bottom surface of the orthobaric volume container The first neat liquid sense contact, and it is fixedly arranged on the second liquid sense contact of the orthobaric volume container inner wall；With it is described The logic control that first opening control switch, the first liquid sense contact and the second liquid sense contact are electrically connected Device PLC processed；The timer being electrically connected with the PLC.

Preferably, the fluid flow detection device further include:

It is sheathed on the peripheral cylinder of the orthobaric volume container periphery, wherein

There are spaces between the inner wall of the periphery cylinder and the outer wall of the orthobaric volume container；

The position that the periphery cylinder corresponds to the liquid stream opening offers fluid pipe.

Preferably, the bore of the liquid stream opening is greater than the internal diameter of the fluid pipe, the fluid flow detection device It further include the liquid runoff calibration device for being connected to the fluid pipe port, the liquid runoff calibration device includes:

It is sheathed on the Pipeline stand of the fluid pipe port；

It is connected to the liquid stream casing of the Pipeline stand, wherein

The end of Pipeline stand described in the liquid stream casing connection is round table-like.

Preferably, the peripheral cylinder includes:

The the second opening control switch for being fixedly arranged on the root of the fluid pipe and being electrically connected with the PLC；

It is opened in the backflow through hole of the bottom surface of the peripheral cylinder.

Preferably, the height of the peripheral cylinder is greater than or equal to the orthobaric volume container, the fluid flow detection Equipment further include:

The high warning device of liquid for being fixedly arranged on the inner wall of the peripheral cylinder and being electrically connected with the PLC, the liquid height alarm The end face opening flush of the influent of device and the orthobaric volume container.

Preferably, the inner wall of the orthobaric volume container is labeled with vertical scale, and the fluid flow detection device also wraps Contact wiper arrangement is included, the contact wiper arrangement includes:

Upright slide rail, sliding block and scale mark detector corresponding with the vertical scale；

The upright slide rail is fixedly arranged on the inner wall of the orthobaric volume container；

The sliding block is slidably connected with the upright slide rail；

The scale mark detector is fixedly arranged on the sliding block and is electrically connected with the PLC；

Wherein, the sliding block is fixedly provided with the second liquid sense contact.

Preferably, the PLC includes:

First signal receiver；

The first switch signal being electrically connected with first signal receiver and the first opening control switch is sent out Raw device；

And the second signal being electrically connected with the first liquid sense contact and the second liquid sense contact Receiver；

The second switch signal generator being electrically connected with the second signal receiver and the timer.

Preferably, the PLC further includes volume accumulator and distinguishes electricity with the timer and the volume accumulator The airflow calculator of connection；The fluid flow detection device further include:

The fluid flow display being electrically connected with the airflow calculator.

Preferably, the PLC further include:

The third switch signal generator being electrically connected with the second signal receiver, wherein the third switching signal Generator is also electrically connected with the first opening control switch.

Preferably, the orthobaric volume container is transparent vessel.

The fluid flow detection device that technical scheme provides, the course of work are as follows:

When needing to detect fluid flow, logic controller PLC control the first opening control switch starting, to close mark The liquid stream of quasi- volume receptacle is open.Fluid to be measured is flowed into from the upper end opening of orthobaric volume container, is touched since the first liquid incudes The bottom surface flush of point and orthobaric volume container can determine that fluid to be measured is just flowed into this when touching fluid to be measured and flowing into The time of orthobaric volume container, liquid inductive signal is sent to PLC at this time, notice PLC detects that orthobaric volume container bottom is opened Begin contact fluid to be measured, and the timer of PLC control at this time starts timing.When second liquid sense contact touches fluid to be measured, Second liquid sense contact sends liquid inductive signal to PLC, and notice PLC second liquid sense contact touches fluid to be measured, So that PLC controls timer expiration timing.Timer the recorded time is that fluid to be measured is flowed into orthobaric volume container at this time The liquid stream time.Container due to holding liquid is orthobaric volume container, when the first liquid sense contact and second liquid incude When known to the height distance of contact, that is, it may know that the total amount of liquid of fluid to be measured in orthobaric volume container.According to formula: liquid flow Amount=total amount of liquid/liquid stream time, can be calculated the fluid flow of fluid to be measured.Since the capacity of orthobaric volume container is It is known, therefore second liquid sense contact is generally arranged at the end face opening of orthobaric volume container.

The fluid flow detection device that technical scheme provides, it is tested by being touched in the first liquid sense contact When liquid, PLC automatically controls timer and starts timing；When second liquid sense contact touches fluid to be measured, PLC is i.e. vertical That is control timer terminates timing, so as to accurately know the liquid stream time.Pass through liquid in automatic examination criteria volume receptacle Inlet time can be obtained the liquid stream time of accurate fluid to be measured, and then obtain accurate fluid flow, thus compared to back It needs hand-held timer to carry out the technical solution of timing in scape technology, can be improved the measurement accuracy to fluid flow.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor, It is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of fluid flow detection device provided by the embodiments of the present application；

Fig. 2 is a kind of structural schematic diagram for fluid flow detection device that another embodiment of the application provides；

Fig. 3 is a kind of structural schematic diagram of liquid runoff calibration device provided by the embodiments of the present application；

Fig. 4 is a kind of structural schematic diagram for fluid flow detection device that another embodiment of the application provides；

Fig. 5 is a kind of structural schematic diagram for fluid flow detection device that another embodiment of the application provides；

Fig. 6 is a kind of structural schematic diagram for fluid flow detection device that another embodiment of the application provides.

For Fig. 1 into Fig. 6, the corresponding relationship of each structure and appended drawing reference is as follows:

1- orthobaric volume container, 101- liquid stream opening, 102- first be open control switch, the first liquid of 2- sense contact, 3- second liquid sense contact, the first signal receiver of 4- programmable logic controller (PLC) PLC, 401-, 402- first switch signal Generator, 403- second signal receiver, 404- second switch signal generator, 405- volume accumulator, 406- flow rate calculation Device, 407- third switch signal generator, 5- timer, the periphery 6- cylinder, 601- fluid pipe, the opening control of 602- second are opened Pass, 603- backflow through hole, 7- liquid runoff calibration device, 701- Pipeline stand, 702- liquid stream casing, the high warning device of 8- liquid, 9- contact wiper arrangement, 901- upright slide rail, 902- sliding block, 903- scale mark detector, 10- fluid flow display.

Specific embodiment

It is a kind of structural schematic diagram of fluid flow detection device provided by the embodiments of the present application referring to Fig. 1.Such as Fig. 1 institute Show, fluid flow detection device provided by the embodiments of the present application includes:

Orthobaric volume container 1, wherein the bottom surface of orthobaric volume container 1 offers liquid stream opening 101, and liquid stream opening 101 connects It is connected to the first opening control switch 102；

It is fixedly arranged in orthobaric volume container 1 and the first liquid sense contact parallel with the bottom surface of orthobaric volume container 1 2, and it is fixedly arranged on the second liquid sense contact 3 of 1 side wall of orthobaric volume container；

It is electrically connected with the first opening control switch 102, the first liquid sense contact 2 and second liquid sense contact 3 PLC(Programmable Logic Controller, logic controller) 4；

The timer 5 being electrically connected with PLC4.

The fluid flow detection device that technical scheme provides, the course of work are as follows:

When needing to detect fluid flow, logic controller PLC4 control the first opening control switch 102 starts, to close Close the liquid stream opening 101 of orthobaric volume container 1.Fluid to be measured is flowed into from the upper end opening of orthobaric volume container 1, due to the first liquid The bottom surface flush of body sense contact 2 and orthobaric volume container 1 can determine test solution when touching fluid to be measured and flowing into Body has just been flowed into the time of the orthobaric volume container, sends liquid inductive signal to PLC4 at this time, and notice PLC4 detects standard 1 bottom of volume receptacle starts to contact fluid to be measured, and PLC4 controls the beginning timing of timer 5 at this time.When second liquid sense contact 3 When touching fluid to be measured, second liquid sense contact 3 sends liquid inductive signal to PLC4, notifies second liquid sense contact 3 sense that fluid to be measured, PLC4 control timer 5 and terminate timing.The recorded time of timer 5 is that fluid to be measured flows at this time To the liquid stream time of orthobaric volume container 1.Container due to holding liquid is orthobaric volume container 1, is touched when the first liquid incudes When known to the height distance of point 2 and second liquid sense contact 3, that is, it may know that the liquid of fluid to be measured in orthobaric volume container 1 Total amount.According to formula: the fluid flow of fluid to be measured can be calculated in fluid flow=liquid capacity/liquid stream time.Due to The capacity of orthobaric volume container is known, therefore second liquid sense contact is generally arranged at the upper surface of orthobaric volume container Opening.

Fluid flow detection device provided by the embodiments of the present application, it is tested by being touched in the first liquid sense contact 2 When liquid, PLC4 automatically controls timer 5 and starts timing；When second liquid sense contact 3 touches fluid to be measured, PLC4 Timer 5, which is immediately controlled, terminates timing, and so as to obtain liquid inlet time in orthobaric volume container 1, timer 5 is automatic Detect obtained liquid inlet time, as the liquid stream time of fluid to be measured.And then accurate fluid flow is obtained, to compare It needs hand-held timer to carry out the technical solution of timing in background technique, can be improved the measurement accuracy to fluid flow.Its In, it is often integrated with display device in timer, will can intuitively be shown between institute's timing.

If failing to open liquid stream opening 101 in time in fluid flow detection process, or fail to close top quilt in time The opening of the storage container of liquid is surveyed, then fluid to be measured is easy to overflow orthobaric volume container 1, so as to cause the wave of fluid to be measured Take.In order to solve this problem, the fluid flow detection device as shown in Fig. 2, embodiment as one preferred, in the present embodiment Other than each structure shown in FIG. 1, further includes:

It is sheathed on the peripheral cylinder 6 of 1 periphery of orthobaric volume container, wherein the inner wall and orthobaric volume container of peripheral cylinder 6 There is space between 1 outer wall；The position of the corresponding liquid stream opening 101 of peripheral cylinder 6 offers fluid pipe 601.

Fluid flow detection device provided by the embodiments of the present application, by the way that peripheral cylinder 6 is arranged, when orthobaric volume container 1 In liquid overflow when, then the liquid overflowed can flow temporarily into peripheral cylinder 6, temporarily store in outer shroud body 6；When outer When the fluid to be measured stored in shroud body 6 is excessive, it can be flowed out again by the fluid pipe 601 of peripheral cylinder 6.Therefore pass through setting Peripheral cylinder 6 can reduce fluid to be measured in orthobaric volume container 1 and overflow bring waste.In addition, 101 connection of liquid stream opening Fluid pipe 601, therefore the fluid to be measured in orthobaric volume container 1 can be flowed out by the fluid pipe 601.

If being only detection fluid flow, it often may require that after having detected fluid flow, fluid to be measured needed to be back to In the storage container of top.In order to solve this problem, embodiment as one preferred, as shown in Fig. 2, in the embodiment of the present application Fluid flow detection device in, peripheral cylinder 6 includes:

The the second opening control switch 602 for being fixedly arranged on the root of fluid pipe 601 and being electrically connected with PLC4；It is opened in outer The backflow through hole 603 of the bottom surface of shroud body 6.

When needing to flow back fluid to be measured, the fluid to be measured in orthobaric volume container 1 can be first flowed into peripheral cylinder 6, Due to the second opening control switch 602 for being fixedly arranged on the root of fluid pipe 601 and being electrically connected with PLC4, can be avoided tested Liquid is flowed out from fluid pipe 601, and the backflow through hole 603 by being opened in peripheral 6 bottom surface of cylinder flows back into fluid flow inspection Storage container above measurement equipment.

Traditional fluid flow detection device can only enough detect fluid flow, however not be inconsistent standardization in fluid flow When, it is difficult to the flow of adjustment fluid to be measured in time is normally carried out to influence subsequent industrial production.In order to solve this problem, Embodiment as one preferred, the bore of liquid stream opening 101 is big in fluid flow detection device provided by the embodiments of the present application Fluid flow detection device in the internal diameter of fluid pipe 601, and in the embodiment of the present application further includes being connected to fluid pipe 601 The liquid runoff calibration device 7 of port；As shown in figure 3, the liquid runoff calibration device 7 includes:

It is sheathed on the Pipeline stand 701 of 601 port of fluid pipe；It is connected to the liquid stream casing 702 of Pipeline stand 701, In, the end of 702 connecting pipe deck 701 of liquid stream casing is round table-like.

In fluid flow detection device provided by the embodiments of the present application, by the way that liquid runoff calibration device 7, the liquid is arranged Flowrate calibrating device 7 includes the Pipeline stand 701 and liquid stream casing 702 for being sheathed on 601 port of fluid pipe, due to fluid to be measured The bore of flow and liquid stream casing 702 be positively correlated, therefore by the way that the liquid stream casing 702 of different bores is connected to the pipeline On deck 701, the fluid flow flowed out from the fluid flow detection device can be calibrated, to reach normal fluid flow.

After detecting fluid flow, if failing the opening for closing the storage container of top fluid to be measured in time, Huo Zhewei Liquid stream opening 101 can be opened in time, and fluid to be measured is easy to overflow from peripheral cylinder 6, to cause the waste of fluid to be measured.In order to Solve the problems, such as this, as shown in figure 4, embodiment as one preferred, the height of the peripheral cylinder 6 in the embodiment of the present application is greater than Or it is equal to orthobaric volume container 1, fluid flow detection device further include:

The high warning device 8 of liquid for being fixedly arranged on the inner wall of peripheral cylinder 6 and being electrically connected with PLC4.The high warning device 8 of the liquid can Including the liquid sense contact for being set to the inner wall of peripheral cylinder 6 and being electrically connected with PLC, and with the liquid sense contact and PLC The alarm of electrical connection.

The high warning device 8 of the liquid is fixedly arranged on the inner wall of peripheral cylinder 6, reaches in liquid level concordant with the high warning device 8 of the liquid Position when, the high warning device 8 of liquid issues alarm signal, to remind related personnel that liquid is discharged in time or close the quilt of top The storage container of liquid is surveyed, and then fluid to be measured is avoided to overflow from peripheral cylinder 6, reduces the waste of fluid to be measured.

Wherein, the high warning device 8 of the liquid is preferably disposed on and the end face of 1 influent of orthobaric volume container opening flush Position.

The capacity for the fluid to be measured that the storage container of fluid to be measured can store may be limited, even fully flowing into mark In quasi- volume receptacle 1, it is also difficult to orthobaric volume container 1 is filled completely, and the position of 1 end face of orthobaric volume container opening is not achieved, And then fluid to be measured flow is caused to be difficult to detect.In order to solve this problem, the inner wall of orthobaric volume container 1 is labeled with vertical quarter Degree, embodiment as one preferred, as shown in figure 5, fluid flow detection device provided by the embodiments of the present application further includes setting It is placed in the contact wiper arrangement 9 of the orthobaric volume container 1, which includes:

Upright slide rail 901, sliding block 902 and scale mark detector 903 corresponding with vertical scale；Upright slide rail 901 is solid Set on the inner wall of orthobaric volume container 1；Sliding block 902 is slidably connected with upright slide rail 901；Scale mark detector 903 is fixedly arranged on sliding block It 902 and is electrically connected with PLC4；Wherein, sliding block 902 is fixedly provided with second liquid sense contact 3.

Wherein, which is preferably horizontally disposed infrared probe etc..

Fluid flow detection device provided by the embodiments of the present application, it is solid on sliding block 902 by setting contact wiper arrangement 9 Equipped with scale mark detector 903, the adjustable sliding block 902 for being installed with second liquid sense contact 3 is taken office along the sliding of upright slide rail 901 Meaning scale.In the situation as known to the floor space in orthobaric volume container 1, by the way that second liquid sense contact 3 is slided into The volume that fluid to be measured needs to measure can be obtained in predetermined graduated.After learning the volume, restart liquid flow measurement program The liquid stream time that timer 5 is calculated is obtained, according to formula: standard can be obtained in fluid flow=liquid capacity/liquid stream time The liquid stream time of the fluid to be measured of any volume in true orthobaric volume.

Embodiment as one preferred, as shown in fig. 6, the Programmable logical controller in the application embodiment illustrated in fig. 1 Device PLC4 is specifically as shown in Figure 6, comprising:

First signal receiver 401；It is electrically connected with the first signal receiver 401 and the first opening control switch 102 First switch signal generator 402；And it is electrically connected with the first liquid sense contact 2 and second liquid sense contact 3 Second signal receiver 403；Occur with the second switch signal that second signal receiver 403 and timer 5 are electrically connected Device 404.

First signal receiver 401 is used to receive the opening and closing instruction to the first opening control switch 102, and (this signal can be by people For input).Before needing to detect fluid flow, the first signal receiver 401 by the liquid stream received opening 101 out code It is sent to first switch signal generator 402, first switch signal generator 402 issues signal, with control the first opening control Switch 102 closes liquid stream opening 101.Liquid flow detection starts, and fluid to be measured is flowed into orthobaric volume container 1, the first liquid Body sense contact 2 touches fluid to be measured, sends liquid inductive signal, second signal receiver to second signal receiver 403 403 send the signal to second switch signal generator 404, and second switch signal generator 404 sends timing to timer 5 Commencing signal, to start timer 5 to start timing；When second liquid sense contact 3 touches fluid to be measured, to second Signal receiver 403 sends liquid inductive signal, and second signal receiver 403 sends the signal to second switch signal hair again Raw device 404, second switch signal generator 404 sends timing end signal to timer 5, to close timer 5.Pass through this The each structure for applying for the PLC4 that embodiment provides, can obtain the liquid stream time of accurate fluid to be measured.

Embodiment as one preferred, as shown in fig. 6, PLC4 provided by the embodiments of the present application further include: volume storage Device 405 and the airflow calculator 406 being electrically connected with timer 5 and volume accumulator 405；

In the present embodiment, fluid flow detection device shown in Fig. 1 further include: the liquid being electrically connected with airflow calculator 406 Flow indicator 10.

Volume accumulator 405 is stored with the default liquid capacity of fluid to be measured, which can pass through measurement the The distance and position of one liquid sense contact 2 and second liquid sense contact 3 obtains, or in advance by the appearance of orthobaric volume container 1 Amount input obtains.It is electric by airflow calculator 406 and the timer 5 and the volume accumulator 405 for being stored with default liquid capacity Connection, when 5 timing of timer obtains the liquid stream time of fluid to be measured, according to formula: when fluid flow=liquid capacity/liquid stream Between, the fluid flow of fluid to be measured can rapidly and accurately be calculated, and by 10 quicklook of fluid flow display It shows.

In addition, fluid flow detection device after detection obtains fluid to be measured flow, generally requires to flow out fluid to be measured Into the bearing container of lower section.And the liquid capacity for being flowed into bearing container is often certain, and traditional fluid flow inspection Measurement equipment can not be flowed into bearing container according to predetermined volumes, so as to cause the liquid capacity deficiency or mistake for being flowed into bearing container Amount.In order to solve this problem, as shown in fig. 6, PLC4 provided by the embodiments of the present application further include:

The third switch signal generator 407 being electrically connected with second signal receiver 403, wherein third switching signal hair Raw device 407 is also electrically connected with the first opening control switch 102.

Second signal receiver 403 with the first liquid sense contact 2 and second liquid sense contact 3 due to being electrically connected respectively It connects, by the way that the height of second liquid sense contact 3 is arranged, can accurately obtain the liquid capacity in orthobaric volume container 1, so First opening of the control of third switch signal generator 407 control switch 102 is opened afterwards, and then is accurately controlled and be flowed into bearing container In liquid capacity, to solve the problems, such as fluid volume depletion or excess in bearing container.

In addition, embodiment as one preferred, which is transparent vessel.To facilitate operation personnel couple The actual capacity of fluid to be measured is observed.

Fluid flow detection device provided by the embodiments of the present application touches test solution by the first liquid sense contact 2 When body, PLC4 automatically controls timer 5 and starts timing；When second liquid sense contact 3 touches fluid to be measured, PLC4 is Timer, which is immediately controlled, terminates timing, so as to accurately know the liquid stream time.Pass through liquid in automatic examination criteria volume receptacle 1 Body inlet time can be obtained the liquid stream time of accurate fluid to be measured, and then obtain accurate fluid flow, thus compared to It needs hand-held timer to carry out the technical solution of timing in background technique, can be improved the measurement accuracy to fluid flow.

Same and similar part may refer to each other between each embodiment in this specification.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, same or similar part refers to mutually between each embodiment.

The description and claims of this application and term " first ", " second ", " third " and " in above-mentioned attached drawing The terms (if present) such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.Ying Li The data that solution uses in this way are interchangeable under appropriate circumstances, so as to embodiments herein described herein can in addition to Here the sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, It is intended to cover and non-exclusive includes.

The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the application.To this A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can Without departing from the spirit or scope of the application, it realizes in other embodiments.Therefore, the application will not be limited In the embodiments shown herein, and it is to fit to widest model consistent with the principles and novel features disclosed in this article It encloses.

Claims (10)

1. a kind of fluid flow detection device characterized by comprising

Orthobaric volume container (1), wherein the bottom surface of the orthobaric volume container (1) offers liquid stream opening (101), the liquid Stream opening (101) is connected with the first opening control switch (102)；

It is fixedly arranged in the orthobaric volume container (1) and the first liquid with the bottom surface flush of the orthobaric volume container (1) Sense contact (2), and it is fixedly arranged on the second liquid sense contact (3) of orthobaric volume container (1) inner wall；

With first opening control switch (102), the first liquid sense contact (2) and the second liquid sense contact (3) the programmable logic controller (PLC) PLC(4 being electrically connected)；

The timer (5) being electrically connected with the PLC(4).

2. fluid flow detection device according to claim 1, which is characterized in that further include:

It is sheathed on the peripheral cylinder (6) of orthobaric volume container (1) periphery, wherein

There are spaces between the inner wall of the periphery cylinder (6) and the outer wall of the orthobaric volume container (1)；

The position of the corresponding liquid stream opening (101) of periphery cylinder (6) offers fluid pipe (601).

3. fluid flow detection device according to claim 2, which is characterized in that the bore of the liquid stream opening (101) Greater than the internal diameter of the fluid pipe (601), the fluid flow detection device further includes being connected to the fluid pipe (601) The liquid runoff calibration device (7) of port, the liquid runoff calibration device (7) include:

It is sheathed on the Pipeline stand (701) of the fluid pipe (601) port；

It is connected to the liquid stream casing (702) of the Pipeline stand (701), wherein

The end that the liquid stream casing (702) connects the Pipeline stand (701) is round table-like.

4. fluid flow detection device according to claim 2, which is characterized in that it is described periphery cylinder (6) include:

The the second opening control switch for being fixedly arranged on the root of the fluid pipe (601) and being electrically connected with the PLC(4) (602)；

It is opened in the backflow through hole (603) of the bottom surface of the peripheral cylinder (6).

5. fluid flow detection device according to claim 2, which is characterized in that the height of the periphery cylinder (6) is big In or be equal to the orthobaric volume container (1), the fluid flow detection device further include:

The high warning device of liquid (8) for being fixedly arranged on the inner wall of the peripheral cylinder (6) and being electrically connected with the PLC(4), the liquid The end face opening flush of the influent of high warning device (8) and the orthobaric volume container (1).

6. fluid flow detection device according to claim 1, which is characterized in that the orthobaric volume container (1) it is interior Wall is labeled with vertical scale, and the fluid flow detection device further includes contact wiper arrangement (9), the contact wiper arrangement (9) include:

Upright slide rail (901), sliding block (902) and scale mark detector (903) corresponding with the vertical scale；

The upright slide rail (901) is fixedly arranged on the inner wall of the orthobaric volume container (1)；

The sliding block (902) is slidably connected with the upright slide rail (901)；

The scale mark detector (903) is fixedly arranged on the sliding block (902) and is electrically connected with the PLC(4)；

Wherein, the sliding block (902) is fixedly provided with the second liquid sense contact (3).

7. fluid flow detection device according to claim 1, which is characterized in that the PLC(4) include:

First signal receiver (401)；

The first switch being electrically connected with first signal receiver (401) and first opening control switch (102) Signal generator (402)；

And

The second signal being electrically connected with the first liquid sense contact (2) and the second liquid sense contact (3) connects It receives device (403)；

The second switch signal generator being electrically connected with the second signal receiver (403) and the timer (5) (404).

8. fluid flow detection device according to claim 7, which is characterized in that the PLC(4) it further include volume storage Device (405) and the airflow calculator (406) being electrically connected with the timer (5) and the volume accumulator (405)；Institute State fluid flow detection device further include:

The fluid flow display (10) being electrically connected with the airflow calculator (406).

9. fluid flow detection device according to claim 7, which is characterized in that the PLC(4) further include:

The third switch signal generator (407) being electrically connected with the second signal receiver (403), wherein the third is opened OFF signal generator (407) is also electrically connected with first opening control switch (102).

10. fluid flow detection device according to claim 1, which is characterized in that the orthobaric volume container (1) is Bright container.