CN205280186U

CN205280186U - Level gauge

Info

Publication number: CN205280186U
Application number: CN201521143674.3U
Authority: CN
Inventors: 郑丽槐
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-01
Anticipated expiration: 2025-12-31

Abstract

The utility model provides a level gauge belongs to the liquid level measurement field, hose including pressure transmitter, flotation pontoon and full of liquid, the one end of hose with pressure transmitter connects, the other end of hose with the flotation pontoon is connected. The utility model provides a level gauge according to the pressure differential of liquid in to the container liquid level measure, the flotation pontoon floats the liquid surface in the container, the hose is connected the one end that one end and hose be connected with the flotation pontoon and has certain difference in height with pressure transmitter, lead to the hose both ends to have the pressure differential, in the container during liquid liquid level variation, the flotation pontoon fluctuates thereupon, change the pressure differential between the hose both ends, the signal of container in liquid level is calculated and converts into by pressure transmitter, this kind of level gauge can work in liquid for a long time, and the computational accuracy is high, can accurate come out the liquid level switches in the container.

Description

Liquidometer

Technical field

The utility model relates to level gauging field, specifically, it relates to a kind of liquidometer.

Background technology

Liquid level inspection is the detection often used in industrial production, and level value is parameter conventional in industrial control process accurately. But in some special industrial operating modes, as high temperature, heavy dust, steam, vibrations and liquid have stronger adhesivity and solidifiability, becoming restriction traditional liquid level detection device can not the factor of normal operation.

Contriver finds under study for action, and existing liquidometer at least exists following shortcoming: operationally need to put in measured liquid, causes the liquidometer can not normal operation for a long time.

Practical novel content

The purpose of this utility model is to provide a kind of liquidometer, need to render in test solution, to improve existing liquidometer, the problem causing working for a long time.

The utility model is achieved in that

Based on above-mentioned purpose, the utility model provides a kind of liquidometer, comprises the flexible pipe of pressure unit, floating drum and full liquid, and one end of described flexible pipe is connected with described pressure unit, and the other end of described flexible pipe is connected with described floating drum.

Liquid level in container is measured by the liquidometer that the utility model provides according to the pressure difference of liquid, floating drum floats on the fluid surface in container, there is certain difference of altitude in the flexible pipe one end that one end is connected with floating drum that is connected with pressure unit with flexible pipe, flexible pipe two ends are caused to there is pressure difference, when liquid in container liquid level change, floating drum fluctuates thereupon, change the pressure difference between flexible pipe two ends, undertaken calculating by pressure unit and be converted to the signal of liquid level in container, this kind of liquidometer can work in a liquid for a long time, and calculate precision height, accurately the liquid level in container can be shown.

Further, described flexible pipe is provided with spring tracheae.

Spring tracheae can make flexible pipe have certain retractility, and when avoiding the liquid level in container too low, floating drum disengaging liquid level causes take off data to be forbidden.

Further, described spring tracheae is positioned at described flexible pipe one end near described floating drum.

One end that flexible pipe is provided with spring tracheae can directly be stretched in container, and straight-tube portion is fixedly connected with container, can improve measuring accuracy further.

Further, described liquidometer also comprises permanent pulling force device, and described permanent pulling force device makes described flexible pipe be remained unchanged by the pulling force of described floating drum, and described spring tracheae is positioned at described flexible pipe one end near described pressure unit.

When floating drum floats on the liquid level in container, floating drum is subject to the gravitation from the earth vertically downward, liquid to his buoyancy upwards and flexible pipe to his pulling force upwards, these three power make floating drum keep balance, but when liquid level in container declines, spring tracheae is elongation state, at this moment the pulling force of floating drum is become big by flexible pipe, thus the buoyancy making floating drum be subject to reduces, the part making floating drum be positioned at liquid reduces, the distance of flexible pipe and liquid level is made to become big, thus there are some deviations in the data making measurement, although this kind of deviation is less, but still the impact of some passivenesses may be produced, permanent pulling force device effect is to make flexible pipe that the pulling force of floating drum is kept certain, thus improving measurement accuracy.

Further, described permanent pulling force device comprises a roller and a variable weights, described flexible pipe is around on described roller, described flexible pipe is divided into measurement section and operate portions by described roller, described measurement section is connected with described floating drum, described operate portions is connected with described pressure unit, and described variable weights is between described roller and described pressure unit and is connected in described operate portions, and described measurement section is straight pipe.

Variable weights makes the part concave downward that flexible pipe is connected with variable weights, now variable weights is subject to downward gravity and the pulling force from flexible pipe, same variable weights also gives operate portions counter pull of flexible pipe, and owing to variable weights gravity is constant, therefore variable weights is constant to the counter pull of the operate portions of flexible pipe; Roller makes a part for flexible pipe raise up, even if flexible pipe is suspended on roller, by operate portions, measurement section provided a pulling force, and this pulling force equals the half of variable weights gravity just, therefore measurement section is constant by the pulling force of operate portions, accordingly, the pulling force of floating drum would not be become by measurement section, thus the measuring accuracy making liquidometer gets a promotion.

Further, described spring tracheae is between described pressure unit and described variable weights.

When in container, liquid level changes, floating drum fluctuates thereupon, and variable weights is also moved up and down, and by spring tracheae, variable weights is moved up and down, and when spring tracheae is between pressure unit and variable weights, makes the work of liquidometer more smooth.

Further, the signal receiving end of described pressure unit is provided with pipeline, described pipeline and described soft pipe connection.

Pressure unit is fixedly connected with a pipeline, flexible pipe can be avoided to come off from pressure unit.

Further, described pipeline is connected by right angle two pass joint with described flexible pipe.

Right angle two pass joint is that mechanically resistant material becomes, and right pipe pipeline when corner can be avoided to turn the appearance at dead angle.

Further, described floating drum is provided with groove away from one end of described flexible pipe, described groove by the bottom surface of described floating drum to the inner recess of described floating drum.

Floating drum is when fluctuating with liquid level, it may occur that rock, and the bottom of floating drum is set to groove and floating drum can be avoided when rocking to produce the situation of rolling; Meanwhile, when floating drum sinks in water, owing to air chamber effect makes floating drum float on the water surface, although having pulling force upwards under having spring tracheae effect, but make floating drum must not depart from liquid level under barometric point and action of gravity.

Further, described floating drum is also provided with through hole, and described through hole is connected with described groove, and described through hole is provided with reverse checkvalve away from one end of described groove, and described reverse checkvalve is fixedly connected on described floating drum.

When floating drum sinks in water, floating drum both under air cuts down discharge by through hole and check, and reverse checkvalve makes air can only discharge in groove, and does not enter groove by through hole, thus makes floating drum must not depart from liquid level.

Compared with prior art, the useful effect that the utility model realizes is:

Accompanying drawing explanation

Fig. 1 shows the schematic diagram of the liquidometer that the utility model embodiment 1 provides;

Fig. 2 shows the vertical view of the floating drum of the liquidometer that the utility model embodiment 1 provides;

Fig. 3 shows the sectional view of the floating drum of the liquidometer that the utility model embodiment 1 provides;

Fig. 4 shows the schematic diagram of the liquidometer that the utility model embodiment 2 provides.

In figure:

Pressure unit 101; Pipeline 102; Right angle two pass joint 103; Spring tracheae 104; Operate portions 105; Measurement section 106; Variable weights 107; Roller 108; Floating drum 109; Container 110; Liquid 111; Flexible pipe 112; Groove 113; Through hole 114; Reverse checkvalve 115; Air chamber 116.

Embodiment

Liquid level inspection is the detection often used in industrial production, and level value is parameter conventional in industrial control process accurately. But in some special industrial operating modes, as high temperature, heavy dust, steam, vibrations and liquid have stronger adhesivity and solidifiability, becoming restriction traditional liquid level detection device can not the factor of normal operation. Contriver finds under study for action, and existing liquidometer at least exists following shortcoming: operationally need to put in measured liquid, causes the liquidometer can not normal operation for a long time.

In order to make the problems referred to above improve, the utility model provides a kind of liquidometer, comprises the flexible pipe of pressure unit, floating drum and full liquid, and one end of described flexible pipe is connected with described pressure unit, and the other end of described flexible pipe is connected with described floating drum. liquid level in container is measured by the liquidometer that the utility model provides according to the pressure difference of liquid, floating drum floats on the fluid surface in container, there is certain difference of altitude in the flexible pipe one end that one end is connected with floating drum that is connected with pressure unit with flexible pipe, flexible pipe two ends are caused to there is pressure difference, when liquid in container liquid level change, floating drum fluctuates thereupon, change the pressure difference between flexible pipe two ends, undertaken calculating by pressure unit and be converted to the signal of liquid level in container, this kind of liquidometer can work in a liquid for a long time, and calculate precision height, accurately the liquid level in container can be shown.

Below by specific embodiment son and by reference to the accompanying drawings the utility model is described in further detail.

For making the object of the utility model embodiment, technical scheme and advantage clearly, above in conjunction with the accompanying drawing in the utility model embodiment, carry out describing clearly and completely to the technical scheme in the utility model embodiment, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments. The assembly of the utility model embodiment usually describing in accompanying drawing herein and illustrating can be arranged with various different configuration and design.

Therefore, the detailed description of the above embodiment of the present utility model to providing in the accompanying drawings the claimed scope of the present utility model of not intended to be limiting, but only represent selected embodiment of the present utility model. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.

It should be noted that: similar label and letter accompanying drawing below represents similar item, therefore, once a certain Xiang Yi accompanying drawing is defined, then do not need it carries out definition further and explains in accompanying drawing subsequently.

In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", it is based on orientation shown in the drawings or position relation that the orientation of the instruction such as " outward " or position are closed, or this practicality novel product orientation usually put or position relation when using, it is only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model. in addition, term " first ", " the 2nd ", " the 3rd " etc. are only for distinguishing description, and can not be interpreted as instruction or hint relative importance.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, such as, it is possible to be fixedly connected with, can also be removably connect, or connect integratedly; Can be mechanically connected, it is also possible to be electrical connection; Can be directly be connected, it is also possible to be indirectly connected by intermediary, it is possible to be the connection of two element internals. For the ordinary skill in the art, it is possible to particular case understands the concrete implication of above-mentioned term in the utility model.

Embodiment 1

Referring to figs. 1 through Fig. 3, the utility model provides a kind of liquidometer, comprises the flexible pipe 112 of pressure unit 101, floating drum 109 and full liquid 111, and one end of flexible pipe 112 is connected with pressure unit 101, and the other end of flexible pipe 112 is connected with floating drum 109. liquid level in container 110 is measured by the liquidometer that the utility model provides according to the pressure difference of liquid 111, floating drum 109 floats on the surface of the liquid 111 in container 110, there is certain difference of altitude in flexible pipe 112 one end that one end is connected with floating drum 109 that is connected with pressure unit 101 with flexible pipe 112, flexible pipe 112 two ends are caused to there is pressure difference, when in container 110 during liquid 111 liquid level change, floating drum 109 fluctuates thereupon, change the pressure difference between flexible pipe 112 two ends, undertaken calculating by pressure unit 101 and be converted to the signal of liquid level in container 110, this kind of liquidometer can work for a long time in liquid 111, and calculate precision height, accurately the liquid level in container 110 can be shown.

Flexible pipe 112 can arrange spring tracheae 104. Spring tracheae 104 can make flexible pipe 112 have certain retractility, when avoiding the liquid level in container 110 too low floating drum 109 depart from liquid level cause take off data forbidden.

Spring tracheae 104 can be the one end being positioned at flexible pipe 112 near floating drum 109. One end that flexible pipe 112 is provided with spring tracheae 104 can directly be stretched in container 110, and straight-tube portion is fixedly connected with container 110, can improve measuring accuracy further. Meanwhile, spring tracheae 104 can also make the not far decentering position of floating drum 109, thus improves measuring accuracy.

The signal receiving end stating pressure unit 101 can arrange pipeline 102, and pipeline 102 is connected with flexible pipe 112. Pressure unit 101 is fixedly connected with a pipeline 102, flexible pipe 112 can be avoided to come off from pressure unit 101.

Pipeline 102 is connected by right angle two pass joint 103 with flexible pipe 112. Right angle two pass joint 103 becomes for mechanically resistant material, and right pipe pipeline when corner can be avoided to turn the appearance at dead angle.

Consulting Fig. 2 and Fig. 3 floating drum 109 to arrange away from one end of flexible pipe 112 and can arrange groove 113, groove 113 to the inner recess of floating drum 109, makes the bottom of floating drum 109 form a cavity being in communication with the outside by the bottom surface of floating drum 109. Floating drum 109 is when fluctuating with liquid level, it may occur that rock, and the bottom of floating drum 109 is set to groove 113 and floating drum 109 can be avoided when rocking to produce the situation of rolling; Meanwhile, when floating drum 109 sinks in water, owing to groove 113 effect makes floating drum 109 float on the water surface, although having pulling force upwards under having spring tracheae 104 to act on, but make floating drum 109 must not depart from liquid level under barometric point and action of gravity.

Can also arranging through hole 114 on floating drum 109, through hole 114 is connected with groove 113, and through hole 114 is provided with reverse checkvalve 115 away from one end of groove 113, and reverse checkvalve 115 is fixedly connected on floating drum 109. When floating drum 109 sinks in water, floating drum 109 both under air is discharged by through hole 114 and reverse checkvalve 115, and reverse checkvalve 115 makes air can only discharge in groove 113, and does not enter groove 113 by through hole 114, with the pressure ensured in groove 113, thus make floating drum 109 must not depart from liquid level.

Air chamber 116 can also be set in floating drum 109, air chamber 116 is connected with through hole 114, ventpipe can be installed in through hole 114, one end of through-hole pipe is connected with groove 113, the other end of ventpipe is connected with reverse checkvalve 115, and ventpipe runs through air chamber 116, air chamber 116 is made to become an enclosed space, gas in groove 113 is discharged by through-hole pipe, after arranging air chamber 116, due to aerification in air chamber 116, the gravity of floating drum 109 itself therefore can be reduced, guarantee that floating drum 109 can float on liquid level, ensure the accurate degree of the measurement of the normal operation of liquidometer.

Fig. 2 shows a kind of form of air chamber 116, and certainly, air chamber 116 can also be the shape in other, or is positioned at other positions of floating drum 109.

Embodiment 2

With reference to Fig. 4, the present embodiment also provides a kind of liquidometer, the present embodiment is the further improvement on the basis of the technical scheme of embodiment 1, and the technical scheme that embodiment 1 describes is equally applicable to the present embodiment, and the published technical scheme of embodiment 1 no longer repeats to describe.

Concrete, the difference of the present embodiment and embodiment 1 is, this liquidometer that example provides in real time also arranges persevering pulling force device. when floating drum 109 floats on the liquid level in container 110, floating drum 109 is subject to the gravitation from the earth vertically downward, liquid 111 to his buoyancy upwards and flexible pipe 112 to his pulling force upwards, these three power make floating drum 109 keep balance, but when liquid level in container 110 declines, spring tracheae 104 is in elongation state, at this moment the pulling force of floating drum 109 is become big by flexible pipe 112, thus the buoyancy making floating drum 109 be subject to reduces, the part making floating drum 109 be positioned at liquid 111 reduces, flexible pipe 112 is made to become big with the distance of liquid level, thus there are some deviations in the data making measurement, although this kind of deviation is less, but still the impact of some passivenesses may be produced, permanent pulling force device effect is to make flexible pipe 112 that the pulling force of floating drum 109 is kept certain, thus improving measurement accuracy. therefore liquidometer can also arrange permanent pulling force device, and permanent pulling force device makes flexible pipe 112 be remained unchanged by the pulling force of floating drum 109, and spring tracheae 104 is positioned at flexible pipe 112 one end near pressure unit 101.

Permanent pulling force device comprises a roller 108 and a variable weights 107, flexible pipe 112 is around on roller 108, flexible pipe 112 is divided into measurement section 106 and operate portions 105 by roller 108, measurement section 106 is connected with floating drum 109, operate portions 105 is connected with pressure unit 101, variable weights 107 is between roller 108 and pressure unit 101 and is connected in operate portions 105, and measurement section 106 is straight pipe.

Variable weights 107 makes the part concave downward that flexible pipe 112 is connected with variable weights 107, now variable weights 107 is subject to downward gravity and the pulling force from flexible pipe 112, same variable weights 107 also gives operate portions 105 1 counter pull of flexible pipe 112, owing to variable weights 107 gravity is constant, therefore variable weights 107 is constant to the counter pull of the operate portions 105 of flexible pipe 112; Roller 108 makes a part for flexible pipe 112 raise up, even if flexible pipe 112 is suspended on roller 108, by operate portions 105, measurement section 106 provided a pulling force, and this pulling force equals the half of variable weights 107 gravity just, therefore measurement section 106 is constant by the pulling force of operate portions 105, accordingly, the pulling force of floating drum 109 would not be become by measurement section 106, thus the measuring accuracy making liquidometer gets a promotion.

Spring tracheae 104 is between pressure unit 101 and variable weights 107. When in container 110, liquid level changes, floating drum 109 fluctuates thereupon, and variable weights 107 is also moved up and down, and by spring tracheae 104, variable weights 107 is moved up and down, when spring tracheae 104 is between pressure unit 101 and variable weights 107, make the work of liquidometer more smooth.

In sum, liquid level in container is measured by the liquidometer that the utility model provides according to the pressure difference of liquid, floating drum floats on the fluid surface in container, there is certain difference of altitude in the flexible pipe one end that one end is connected with floating drum that is connected with pressure unit with flexible pipe, flexible pipe two ends are caused to there is pressure difference, when liquid in container liquid level change, floating drum fluctuates thereupon, change the pressure difference between flexible pipe two ends, undertaken calculating by pressure unit and be converted to the signal of liquid level in container, this kind of liquidometer can work in a liquid for a long time, and calculate precision height, accurately the liquid level in container can be shown.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a liquidometer, it is characterised in that, comprise the flexible pipe of pressure unit, floating drum and full liquid, one end of described flexible pipe is connected with described pressure unit, and the other end of described flexible pipe is connected with described floating drum.

2. liquidometer according to claim 1, it is characterised in that, described flexible pipe is provided with spring tracheae.

3. liquidometer according to claim 2, it is characterised in that, described spring tracheae is positioned at described flexible pipe one end near described floating drum.

4. liquidometer according to claim 2, it is characterized in that, described liquidometer also comprises permanent pulling force device, and described permanent pulling force device makes described flexible pipe be remained unchanged by the pulling force of described floating drum, and described spring tracheae is positioned at described flexible pipe one end near described pressure unit.

5. liquidometer according to claim 4, it is characterized in that, described permanent pulling force device comprises a roller and a variable weights, described flexible pipe is around on described roller, described flexible pipe is divided into measurement section and operate portions by described roller, and described measurement section is connected with described floating drum, and described operate portions is connected with described pressure unit, described variable weights is between described roller and described pressure unit and is connected in described operate portions, and described measurement section is straight pipe.

6. liquidometer according to claim 5, it is characterised in that, described spring tracheae is between described pressure unit and described variable weights.

7. liquidometer according to the arbitrary item of claim 1 to 6, it is characterised in that, the signal receiving end of described pressure unit is provided with pipeline, described pipeline and described soft pipe connection.

8. liquidometer according to claim 7, it is characterised in that, described pipeline is connected by right angle two pass joint with described flexible pipe.

9. liquidometer according to claim 8, it is characterised in that, described floating drum is provided with groove away from one end of described flexible pipe, described groove by the bottom surface of described floating drum to the inner recess of described floating drum.

10. liquidometer according to claim 9, it is characterised in that, described floating drum is also provided with through hole, and described through hole is connected with described groove, and described through hole is provided with reverse checkvalve away from one end of described groove, and described reverse checkvalve is fixedly connected on described floating drum.