CN217466169U

CN217466169U - Stable form flow resistance testing arrangement

Info

Publication number: CN217466169U
Application number: CN202221338136.XU
Authority: CN
Inventors: 陈平; 周界创; 刘荣华
Original assignee: Beehe Electric Taicang Co ltd
Current assignee: Beehe Electric Taicang Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-20
Anticipated expiration: 2032-05-31

Abstract

A stable flow resistance testing device comprises a testing case, a testing table board and a measuring unit, wherein the measuring unit is arranged in the testing case and is positioned in a range covered by the testing table board; the measuring unit comprises a first connecting port, a second connecting port, a water tank, a centrifugal pump, a first ball valve, a first outflow port and a second outflow port, the first connecting port, the second connecting port, the water tank, the centrifugal pump, the first ball valve, the first outflow port and the second outflow port are all arranged on the testing case, the first connecting port and the second connecting port are communicated with the water tank through pipelines, the water tank is connected with the centrifugal pump through pipelines, the centrifugal pump is communicated with the first outflow port and the second outflow port through pipelines, and the first ball valve is arranged on a pipeline between the water tank and the centrifugal pump. The utility model discloses a stable form flow resistance testing arrangement, the water of steady pressure and flow constantly gets into through the filter under the main circulating pump power effect by test equipment, and the return water is got back to the main circulating pump entry, so reciprocal circulation.

Description

Stable form flow resistance testing arrangement

Technical Field

The utility model belongs to the technical field of the flow resistance test is experimental, specifically, relate to a stable form flow resistance testing arrangement.

Background

In a liquid or gas conveying pipeline, the flow resistance of the pipeline influences the transmission flow and the transmission flow control of the whole pipeline system. For example, in the field of aerospace, a set of liquid or gas path transmission system must accurately calculate the actual flow resistance of each section of pipeline so as to cooperate with a flow control system to realize accurate control of fluid transmission. Similarly, the measurement of the flow resistance of pipelines in the fields of petroleum, chemical engineering, medicine and the like is very important.

The general methods for measuring the flow resistance characteristics of the pipeline generally include the following three methods:

one is to fix the flow rate for the pipeline system, then directly measure the pressure difference at the two ends of the pipeline system, and finally obtain the flow resistance;

the other method is to fix the extrusion pressure for the pipeline system and measure the flow change.

The two methods have the disadvantages that extra pressure or flow control is needed, only the whole flow resistance can be measured, for a more complex pipeline system, the flow resistance can be measured after the flow resistance is designed and assembled, and if the flow resistance characteristic does not meet the requirement, the change is not performed.

The other method is to directly measure the physical characteristics of the pipeline, such as the length and the inner diameter of the pipeline, and calculate the flow resistance of the pipeline through calculation. However, in the case of irregularly shaped pipelines, the measurement becomes rather complicated, even impossible, and thus impossible to calculate.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a stable form flow resistance testing arrangement, the flow resistance testing arrangement suitability of having solved among the prior art is poor, causes the problem that the flow resistance test can't satisfy customer user demand.

The technical scheme is as follows: the utility model provides a stable flow resistance testing device, which comprises a testing case, a testing table board and a measuring unit, wherein the testing case is of a rectangular box structure, the testing table board is covered on the testing case, the measuring unit is arranged in the testing case, and the measuring unit is positioned in the covered range of the testing table board; the measuring unit comprises a first connecting port, a second connecting port, a water tank, a centrifugal pump, a first ball valve, a first outflow port and a second outflow port, the first connecting port, the second connecting port, the water tank, the centrifugal pump, the first ball valve, the first outflow port and the second outflow port are all arranged on the testing case, the first connecting port and the second connecting port are communicated with the water tank through pipelines, the water tank is connected with the centrifugal pump through pipelines, the centrifugal pump is communicated with the first outflow port and the second outflow port through pipelines, and the first ball valve is arranged on a pipeline between the water tank and the centrifugal pump. The utility model discloses a stable form flow resistance testing arrangement, the water of steady pressure and flow constantly gets into through the filter under the main circulating pump power effect by test equipment, and the return water is got back to the main circulating pump entry, so reciprocal circulation. An open water tank is arranged at the inlet of the main circulating pump and communicated with the atmosphere.

Further, in the above stable flow resistance testing device, a filter is arranged in the testing machine case, and the filter is connected to a pipeline between the centrifugal pump and the first outflow port and the second outflow port. The main filter is used to prevent the test media from entering the cooled equipment in a rapid flow that may wash out the dislodged rigid particles. The filter precision is 200 μm.

Further, in the stable flow resistance testing device, the first inlet is connected with a first pipeline, the first pipeline is connected with a first instrument ball valve, a second ball valve and a first flow transmitter, and the first instrument ball valve is connected with a first pressure transmitter; the second pipeline is connected with a second instrument ball valve, a third ball valve and a second flow transmitter, the second instrument ball valve is connected with a second pressure transmitter, and the first pipeline and the second pipeline are communicated to the water tank after intersection.

Further, foretell stable form flow resistance testing arrangement, be connected with on the water tank and mend mouth of a river and ball valve four. The inlet of the water pump is provided with an open water tank which is communicated with the atmosphere and is provided with a water replenishing opening, a water draining opening and a liquid level switch.

Furthermore, according to the stable flow resistance testing device, a pipeline III is arranged between the centrifugal pump and the filter, the centrifugal pump and the ball valve are connected to the pipeline III, and the centrifugal pump and the ball valve are connected in series. Main circulationThe pump is a vertical multi-stage centrifugal pump. The power supply AC380V,50Hz, the rated power 4kW, the flow rate 7.2m ³ The lift per hour is not less than 80 m.

Further, according to the stable flow resistance testing device, the pipeline III is connected with the branch pipeline I and the branch pipeline II in parallel, and the branch pipeline I and the branch pipeline II are connected at two ends of a pipeline in series of the centrifugal pump and the ball valve I in parallel. The water pump is connected with a branch in parallel, a 1-inch electric two-way valve is arranged on the branch, and the actuator is of an adjusting type and used for shunting the flow of the system.

Further, in the above stable flow resistance testing device, the branch pipeline i is connected with a ball valve v; and the branch pipeline II is connected with a ball valve six and an electric two-way valve, and the ball valve six and the electric two-way valve are connected in series.

Further, foretell stable form flow resistance testing arrangement, it is four to be connected with the pipeline on the egress opening one, be connected with ball valve seven and pressure transmitter three on the pipeline four, be connected with instrument ball valve three on the pressure transmitter three.

Further, foretell stable form flow resistance testing arrangement, it is five to be connected with the pipeline on the egress opening two, be connected with ball valve eight and pressure transmitter four on the pipeline five, pressure transmitter is connected with instrument ball valve four on four.

Further, foretell stable form flow resistance testing arrangement, be connected with the manometer on the pipeline three. The pressure gauge is used for measuring the flow pressure at three positions of the pipeline in real time.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: stable form flow resistance testing arrangement, test fixture device use easy operation, only need to take one's place the arrangement with test fixture device, supply the return water mouth to insert equipment under test, accomplish the fluid infusion operation, connect the power, closed switch can start test fixture device control system normal operating test fixture device, the parameter setting adjustment can be accomplished through the touch-sensitive screen.

Drawings

Fig. 1 is a schematic diagram of a mechanical structure of the stable flow resistance testing device of the present invention;

fig. 2 is a schematic diagram of the measuring unit of the present invention.

In the figure: the device comprises a test case 1, a test table top 2, a measuring unit 100, a first inlet 3, a second inlet 4, a water tank 5, a centrifugal pump 6, a first ball valve 7, a first outlet 8, a second outlet 9, a filter 10, a first pipeline 11, a first meter ball valve 12, a second ball valve 13, a first flow transmitter 14, a first pressure transmitter 15, a second pipeline 16, a second meter ball valve 17, a third ball valve 18, a second flow transmitter 19, a second pressure transmitter 20, a water replenishing port 21, a fourth ball valve 22, a third pipeline 23, a first branch pipeline 24, a second branch pipeline 25, a fifth ball valve 26, a sixth ball valve 27, an electric two-way valve 28, a seventh ball valve 29, a third pressure transmitter 30, a third meter ball valve 31, a fifth pipeline 32, a eighth ball valve 33, a fourth pressure transmitter 34, a fourth meter 35, a pressure gauge 36 and a fourth pipeline 37.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The stable flow resistance testing device shown in fig. 1 comprises a testing case 1, a testing table 2 and a measuring unit 100, wherein the testing case 1 is of a rectangular box structure, the testing table 2 covers the testing case 1, the measuring unit 100 is arranged in the testing case 1, and the measuring unit 100 is located in a range covered by the testing table 2.

The measuring unit 100 shown in fig. 2 includes an inlet one 3, an inlet two 4, a water tank 5, a centrifugal pump 6, a ball valve one 7, an outlet one 8 and an outlet two 9, the inlet one 3, the inlet two 4, the water tank 5, the centrifugal pump 6, the ball valve one 7, the outlet one 8 and the outlet two 9 are all disposed on the testing machine case 1, the inlet one 3 and the inlet two 4 are communicated to the water tank 5 through a pipeline, the water tank 5 is connected with the centrifugal pump 6 through a pipeline, the centrifugal pump 6 is communicated with the outlet one 8 and the outlet two 9 through a pipeline, and the ball valve one 7 is disposed on a pipeline between the water tank 5 and the centrifugal pump 6. The filter 10 is arranged in the test cabinet 1, and the filter 10 is connected to a pipeline between the centrifugal pump 6 and the first outflow port 8 and the second outflow port 9. And the water tank 5 is connected with a water replenishing port 21 and a ball valve four 22.

In addition, a first pipeline 11 is connected to the first inlet 3, a first instrument ball valve 12, a second ball valve 13 and a first flow transmitter 14 are connected to the first pipeline 11, and a first pressure transmitter 15 is connected to the first instrument ball valve 12; the second inlet 4 is connected with a second pipeline 16, the second pipeline 16 is connected with a second instrument ball valve 17, a third ball valve 18 and a second flow transmitter 19, the second instrument ball valve 17 is connected with a second pressure transmitter 20, and the first pipeline 11 and the second pipeline 16 are communicated to the water tank 5 after meeting.

And a third pipeline 23 is arranged between the centrifugal pump 6 and the filter 10, the centrifugal pump 6 and the first ball valve 7 are connected to the third pipeline 23, and the centrifugal pump 6 and the first ball valve 7 are connected in series. And the pipeline III 23 is connected with a branch pipeline I24 and a branch pipeline II 25 in parallel, and the branch pipeline I24 and the branch pipeline II 25 are connected at two ends of a pipeline in series of the centrifugal pump 6 and the ball valve I7 in parallel. A ball valve five 26 is connected to the branch pipeline one 24; the branch pipeline II 25 is connected with a ball valve six 27 and an electric two-way valve 28, and the ball valve six 27 and the electric two-way valve 28 are connected in series. And a pressure gauge 36 is connected to the third pipeline 23.

In addition, a pipeline four 37 is connected to the first outflow port 8, a ball valve seven 29 and a pressure transmitter three 30 are connected to the pipeline four 37, and an instrument ball valve three 31 is connected to the pressure transmitter three 30. And a fifth pipeline 32 is connected to the second outflow port 9, an eighth ball valve 33 and a fourth pressure transmitter 34 are connected to the fifth pipeline 32, and a fourth instrument ball valve 35 is connected to the fourth pressure transmitter 34.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a stable form flow resistance testing arrangement which characterized in that: the device comprises a test case (1), a test table top (2) and a measuring unit (100), wherein the test case (1) is of a rectangular box structure, the test table top (2) is covered on the test case (1), the measuring unit (100) is arranged in the test case (1), and the measuring unit (100) is positioned in the range covered by the test table top (2);

the measuring unit (100) comprises a first access port (3), a second access port (4), a water tank (5), a centrifugal pump (6), a first ball valve (7), a first outflow port (8) and a second outflow port (9), wherein the first access port (3), the second access port (4), the water tank (5), the centrifugal pump (6), the first ball valve (7), the first outflow port (8) and the second outflow port (9) are all arranged on the testing case (1), the first access port (3) and the second access port (4) are communicated to the water tank (5) through a pipeline, the water tank (5) is connected with the centrifugal pump (6) through a pipeline, the centrifugal pump (6) is communicated with the first outflow port (8) and the second outflow port (9) through a pipeline, and the first ball valve (7) is arranged on a pipeline between the water tank (5) and the centrifugal pump (6).

2. A stabilized flow resistance test device according to claim 1, wherein: a filter (10) is arranged in the testing cabinet (1), and the filter (10) is connected to a pipeline between the centrifugal pump (6) and the outflow port I (8) and the outflow port II (9).

3. A stable flow resistance test device according to claim 1 or 2, wherein: the first inlet (3) is connected with a first pipeline (11), the first pipeline (11) is connected with a first instrument ball valve (12), a second ball valve (13) and a first flow transmitter (14), and the first instrument ball valve (12) is connected with a first pressure transmitter (15); the connecting device is characterized in that a second pipeline (16) is connected to the second inlet (4), a second instrument ball valve (17), a third ball valve (18) and a second flow transmitter (19) are connected to the second pipeline (16), a second pressure transmitter (20) is connected to the second instrument ball valve (17), and the first pipeline (11) and the second pipeline (16) are communicated to the water tank (5) after intersection.

4. A stabilized flow resistance test device according to claim 1 or 2, wherein: and the water tank (5) is connected with a water replenishing port (21) and a ball valve (22).

5. A stabilized flow resistance test device according to claim 2, wherein: a pipeline III (23) is arranged between the centrifugal pump (6) and the filter (10), the centrifugal pump (6) and the ball valve I (7) are connected to the pipeline III (23), and the centrifugal pump (6) and the ball valve I (7) are connected in series.

6. A stabilized flow resistance test device according to claim 5, wherein: and the pipeline III (23) is connected with a branch pipeline I (24) and a branch pipeline II (25) in parallel, and the branch pipeline I (24) and the branch pipeline II (25) are connected at two ends of a pipeline in which the centrifugal pump (6) and the ball valve I (7) are connected in series in parallel.

7. A stabilized flow resistance test device according to claim 6, wherein: a ball valve V (26) is connected to the branch pipeline I (24); and a ball valve six (27) and an electric two-way valve (28) are connected to the branch pipeline two (25), and the ball valve six (27) and the electric two-way valve (28) are connected in series.

8. A stabilized flow resistance test device according to claim 1, wherein: and a pipeline IV (37) is connected to the outflow port I (8), a ball valve VII (29) and a pressure transmitter III (30) are connected to the pipeline IV (37), and an instrument ball valve III (31) is connected to the pressure transmitter III (30).

9. A stabilized flow resistance test device according to claim 8, wherein: and a fifth pipeline (32) is connected to the second outflow port (9), an eighth ball valve (33) and a fourth pressure transmitter (34) are connected to the fifth pipeline (32), and a fourth instrument ball valve (35) is connected to the fourth pressure transmitter (34).

10. A stabilized flow resistance test device according to claim 6, wherein: and a pressure gauge (36) is connected to the third pipeline (23).