CN210268730U

CN210268730U - Mud density and flow measuring device

Info

Publication number: CN210268730U
Application number: CN201921378367.1U
Authority: CN
Inventors: 芶洁
Original assignee: Wuhan Technical College of Communications
Current assignee: Wuhan Technical College of Communications
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-07
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a mud density and flow measuring device, including transfer device, collection device and measuring device, wherein: the transfer device comprises a first box body with an opening at the top, a first valve and a communicating pipe, wherein the first box body is connected with the communicating pipe through a pipeline, and the first valve is arranged at the joint of the first box body and the communicating pipe; the collecting device comprises a second box body, and one end of the communicating pipe, which is far away from the first box body, extends to the second box body; the measuring device comprises a weight measurer, a height measurer and a timer, wherein the weight measurer is arranged below the second box body, the height measurer is arranged on the side surface of the second box body, and the timer is arranged on the side surface of the second box body. The utility model discloses simple structure, it is accurate simple and convenient to measure, can get rid of mud area gas to the measuring result influence.

Description

Mud density and flow measuring device

Technical Field

The utility model relates to a building technical field, specificly relate to a mud density and flow measuring device.

Background

With the development of traffic construction industry, large-scale open caisson foundations, pile foundations, diaphragm walls and other projects are increasingly widely applied, and more attention is paid to slurry slag discharging efficiency in open caisson sinking, pile foundation pore-forming and diaphragm wall trenching excavation. However, the measurement of the density and the flow rate of the slurry is greatly influenced by the construction process (such as gas lift) and the measurement method, so that the measurement cannot be accurate and simple, and a new device is needed for rapidly measuring the density and the flow rate of the externally discharged slurry.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a mud density and flow measuring device for solve among the prior art mud area gas and influence big problem to the measuring result of mud density and flow.

In order to achieve the technical purpose, the technical proposal of the utility model is as follows: a mud density and flow measuring device comprises a transfer device, a collecting device and a measuring device; the transfer device comprises a first box body with an opening at the top, a first valve and a communicating pipe, wherein the first box body is connected with the communicating pipe through a pipeline, and the first valve is arranged at the joint of the first box body and the communicating pipe; the collecting device comprises a second box body, and the communicating pipe penetrates through the second box body; the measuring device comprises a weight measurer, a height measurer and a timer, wherein the weight measurer is arranged below the second box body, the height measurer is arranged on the side face of the second box body, and the timer is arranged on the side face of the second box body.

Compared with the prior art, the beneficial effects of the utility model include: the adopted structure is less and simple; the density and the flow of the slurry in the slurry discharge pipe can be calculated only by reading the slurry discharge time, the slurry weight and the slurry liquid level height, and the measurement is accurate, simple and convenient; the transfer device with the top opening is adopted, so that the influence of slurry entrained gas on the measurement result can be eliminated.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a mud density and flow measurement device provided by the present invention;

fig. 2 is a perspective view of a one-way damper in embodiment 1 of a mud density and flow rate measuring device according to the present invention;

FIG. 3 is a schematic block diagram of the structure of embodiment 2 of a mud density and flow measuring device according to the present invention;

fig. 4 is a schematic structural diagram of embodiment 3 of a mud density and flow rate measuring device provided by the present invention;

reference numerals: the device comprises a transfer device 1, a collection device 2, a measurement device 3, a slurry discharge pipe 4, a controller 5, a first box body 11, a first valve 12, a communicating pipe 13, a one-way buffer 14, a second box body 21, a second valve 22, a discharge pipe 23, a weight measurer 31, a height measurer 32, a timer 33, a one-way valve 141, a vertical pipe orifice 142 and a horizontal pipe orifice 143.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Please refer to fig. 1, fig. 1 is a simplified diagram of an embodiment of a mud density and flow measuring device according to the present invention, which includes a transferring device 1, a collecting device 2 and a measuring device 3, the transferring device is used for discharging gas impurities in the mud and transferring the mud to the collecting device 2, the collecting device 2 is used as a container for measuring mud density flow, and the measuring device 3 is used for measuring mud liquid level and mud weight in the time when the mud flows into the transferring device 2 and the collecting device 3.

In this embodiment, the transfer device 1 includes first box 11, first valve 12, communicating pipe 13, one-way buffer 14, and

first box

11 and 13 pipe connections of communicating pipe, first valve 12 are installed in the junction of first box 11 and communicating pipe 13, and one-way buffer 14 is installed at 13 discharge end of communicating pipe, and first box 11 is used for separating media such as the gas that outer mud smugglied secretly, and its specific principle is: the slurry conveying pipeline is closed and contains certain gas impurities, the error of the result obtained by directly carrying out density and flow measurement on the slurry in the pipeline is large, therefore, most of gas in the slurry can escape by guiding the slurry into the first box body 11 with an opening at the top, the measurement error is effectively reduced, the first valve 12 is used for controlling the slurry to be discharged into the first box body 11, and the communicating pipe 13 is a passage for the slurry to flow into the second box body 21 from the first box body 11.

To explain the structure of the one-way buffer 14 specifically, please continue to refer to fig. 2, fig. 2 is a perspective view of the one-way buffer in embodiment 1 of the device for measuring mud density and flow rate, the one-way buffer 14 is an inverted "T" shape, the inside thereof is conducted, the device comprises a vertical pipe 142 and two horizontal pipes 143 which are perpendicular to each other, the vertical pipe 142 is a feeding end and connected to the communicating pipe 13, the two horizontal pipes 143 are discharging ends, the one-way buffer 14 further comprises a one-way valve 141, the one-way valve 141 is installed on the vertical pipe 142, only allowing mud to flow from the feeding end to the discharging end, the two horizontal pipes 143 are arranged to discharge so as to reduce the mud flow rate of each horizontal pipe 143, the two horizontal pipes 143 are parallel to the mud liquid level, avoiding mud impact directly acting on the second box, thereby preventing mud from splashing and reducing the influence on mud weight measurement, therefore, the one-way buffer 14 plays a role in making the mud flow in one direction and buffering the influence of the impact force of the mud on the mud weight of the collecting tank.

In this embodiment, collection device 2 includes second box 21, second valve 22 and discharging pipe 23, communicating pipe 13 is kept away from the one end of first box 11 and is extended to second box 22, discharging pipe 23 is installed in second box 21 bottom and is connected with second box 21 pipe, install second valve 22 on the discharging pipe 23, second box 21 inner wall side perpendicular to bottom surface, guarantee that second box 21 is in the cross sectional shape of horizontal plane everywhere with the bottom surface unanimity, further guarantee the accuracy of follow-up measurement volume, second box 21 is the container of measuring wherein mud weight and volume, second valve 22 control mud flows out second box 21.

In the present embodiment, the measuring device 3 includes a weight measuring device 31, a height measuring device 32, and a timer 33, the weight measuring device 31 is mounted below the second casing 21, the height measuring device 32 is mounted on the side surface of the second casing 21, and the timer is mounted on the side surface of the second casing. The weight measurer 31 is used for measuring the weight of the slurry in the second tank 21, the height measurer 32 is used for measuring the liquid level height of the slurry in the second tank 21, and the timer 33 is used for timing, and the weight measurer 31, the height measurer 32, and the timer 33 are all common measurement devices in the prior art, and the principle and the structure thereof are not described herein again.

The slurry discharge pipe 4 is disposed above the first tank 11, and discharges the slurry into the first tank 11.

In a preferred embodiment, the side of the second housing 21 to which the height measuring device 32 is attached is transparent.

The side of the tank on which the height measuring device 32 is mounted is transparent so that the measurer can observe the height of the slurry in the second tank 21 and can read the height measuring device 32.

In a preferred embodiment, the weight measuring device 31 is an electronic weight scale, which is model number solid TSC-300.

Electronic weight scale measured weight is accurate, small, very is fit for as the utility model discloses measure the instrument of weight.

In a preferred embodiment, the height measuring device 32 is a scale.

The scale may be conveniently mounted on the second casing 21 or directly engraved on the second casing 21.

With continuing reference to fig. 1, the operation of the present invention will be described in detail as follows: before measurement, all residual mud and other impurities in the first tank 11, the second tank 21 and the communicating pipe 13 need to be cleaned, then the second valve 22 is closed, and the count of the weight measurer 31 and the timer 33 is reset to zero. When the first valve 12 is opened and the slurry enters the first box 11 from the slurry discharge pipe 4, the timer 33 is started to time, after the slurry enters the first box 11, the gas mixed in the slurry can be diffused into the air, and further enters the second box 21 from the communicating pipe 13 and the one-way buffer 14, the slurry in the second box 21 is not mixed with the gas any more, the height measurer 32 on the side surface of the box can directly read the liquid level height of the slurry in the second box 21, when the timer 33 passes a period of time T (the liquid level height gradually rises to the height H), the slurry discharge pipe 4 is removed and the first valve 12 is closed, the liquid level height H at the moment is read (the counting T of the timer 33), and the reading M of the weight measurer 31 is read, the bottom area of the inner wall of the second box 21 is known to be S (different measuring and calculating methods are adopted according to the different shapes of the bottom areas of the inner wall of the second box 21, and are all the simple and common methods in, and will not be described in detail herein). The slurry density ρ is M/(S × H) and the slurry flow rate Q is S × H/T, and after the measurement is completed, the second valve 22 is opened to discharge the slurry.

It should be noted that, if the flow rate and the mass of the slurry in the slurry discharge pipe 4 need to be accurately measured, the measured time T should be the time for discharging the slurry corresponding to the slurry discharge pipe 4, and the measured weight should be the sum of the weights of the slurry in the first tank 11, the second tank 21 and the communicating pipe 13, but because the slurry flows into the second tank 21 from the first tank 11 at a high speed, there is almost no residence, the error time can be ignored, and the slurry residue in the first tank 11 is also very small. Generally, when actually measuring, the mud in the second tank 21 will be more and heavier, and the mud remaining in the flow pipe and not flowing into the second tank 21 will be lighter and have little influence on the actually measured weight, so it can be ignored. In addition, since the flow rate accuracy is not required to be high in the actual measurement and calculation, the data measured by the method provided by the embodiment and the data measured by the high-accuracy method are basically not different after the actual measurement and calculation verification.

Embodiment 2:

referring to fig. 3, fig. 3 is a schematic structural diagram of a mud density and flow rate measurement device in an embodiment 2 according to the present invention, which is substantially the same as the embodiment in embodiment 1, and is not repeated herein, except that:

in this embodiment, the first valve 12' is a timing valve, which is model number CS-720, so that the timer is eliminated, and the measurement is started by only zeroing and setting the predetermined time T.

The mud density and flow measuring device provided by the embodiment can automatically close the valve after reaching the specified time without manual operation, thereby simplifying the operation.

Embodiment 3:

referring to fig. 4, fig. 4 is a schematic diagram of a structure of a mud density and flow rate measuring device in embodiment 3 of the present invention, which is a preferred embodiment of the present invention, and is basically the same as the embodiment of embodiment 1, and is not repeated here, except that:

in this embodiment, the height measuring device 32 "is an electronic liquid level gauge capable of outputting height data, and is of the type omega lv3000, the first valve 12" is a timing valve capable of outputting time data (or a common electrically controllable valve is adopted, and a timing function is integrated in the controller 5), the second valve 22 "is an electrically controllable valve, and the weight measuring device 31" is an electronic weight scale capable of outputting weight data. The first valve 12 ", the second valve 22", the weight measurer 31 ", and the height measurer 32" are all electrically connected to the controller 5 (not shown in the drawings), and the controller 5 may be a single chip controller or a PLC controller, and the control logic of the controller 5 in this embodiment is very simple and is a common control logic in the prior art, and will not be described herein again. In this embodiment, the controller 5 integrates functions of controlling valves, timing and calculating measurement data, and only needs to input the corresponding bottom surface area S in the second tank 21 when in use, starts timing when slurry enters the first valve 12 ″ and automatically stops timing and automatically closes the first valve 12 ″ after the slurry reaches a preset time T or a liquid level H, and meanwhile, the controller performs calculation to directly obtain and output the measurement data.

The automatic control system has high automation degree and extremely simple operation, but has relatively high corresponding manufacturing cost, and is suitable for manufacturing and using under the conditions of sufficient budget and requirement on operation simplicity.

In summary, the mud density and flow measuring device provided by the utility model has the advantages of less adopted appliances and simple structure; the density and the flow of the slurry in the slurry discharge pipe can be calculated only by reading the slurry discharge time, the slurry weight and the slurry liquid level height, and the measurement is accurate, simple and convenient; the open transfer device is adopted, so that the influence of factors such as slurry gas carrying, slag carrying and the like on the measurement result can be eliminated.

The above detailed description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a mud density and flow measuring device, its characterized in that includes transfer device, collection device and measuring device, wherein:

the transfer device comprises a first box body with an opening at the top, a first valve and a communicating pipe, wherein the first box body is connected with the communicating pipe through a pipeline, and the first valve is arranged at the joint of the first box body and the communicating pipe;

the collecting device comprises a second box body, and one end of the communicating pipe, which is far away from the first box body, extends to the second box body;

the measuring device comprises a weight measurer, a height measurer and a timer, wherein the weight measurer is arranged below the second box body, the height measurer is arranged on the side surface of the second box body, and the timer is arranged on the side surface of the second box body.

2. The mud density and flow measuring device of claim 1, wherein the transfer device further comprises a one-way buffer disposed at the discharge end of the communicating pipe.

3. A mud density and flow rate measuring device according to claim 1, wherein the side of said second housing to which said height measuring means is attached is transparent.

4. A mud density and flow measurement device according to claim 1, wherein said weight measuring device is an electronic weight scale.

5. A mud density and flow measurement device according to claim 1, wherein said height measuring means is a graduated scale.

6. A mud density and flow measuring device of claim 1, wherein said second housing inner wall side is perpendicular to said bottom surface.

7. A mud density and flow measuring device according to claim 1, wherein said collecting means further comprises a discharge pipe communicating with the bottom of said second casing, and a second valve disposed on said discharge pipe.