CN113820093B - Instantaneous water distribution measuring device - Google Patents

Abstract

The invention discloses a device for measuring instantaneous water volume distribution, comprising a platform (1), wherein the platform (1) is connected with a plurality of water storage boxes (101). The water receiving box (101) is connected with the lifting mechanism and the starting mechanism; the tilting mechanism is used for adjusting the slope of the platform (1) to simulate the slope of the terrain; the lifting mechanism is used for adjusting the water receiving box The height of the box (101) from the platform (1); adjust the distribution of different heights of the water storage box (101) on the platform (1) to simulate a flat ground, a mountain, a group of buildings or a group of trees; The starting mechanism is used to start the water collecting box (101) to collect water instantaneously to measure the instantaneous water volume distribution; it solves the problem that the existing water volume distribution measurement device based on high-altitude water drop-in does not match the actual environment and causes the measurement results Distortion problem.

Description

An instantaneous water distribution measuring device

technical field

The present invention relates to a water quantity distribution measuring device.

Background technique

For forest fires, the high-altitude water drop from helicopters can effectively slow down the intensity and development speed of forest fires, and is conducive to cooperating with ground personnel to approach the fire line to fight. Precise water injection at the fire line has an important impact on the operation efficiency and fire extinguishing effect. It is the top priority to ensure that sufficient water is distributed to the fire head, fire line and other water injection targets to the greatest extent.

The body of water falling from a high altitude has a large kinetic energy, and the splash is an inevitable action after the body of water hits the ground. The topography of the forest is undulating and changeable. In addition to the existence of combustibles such as trees, branches and leaves, the splash effect has a great influence on the fire extinguishing effect. Figure 13 shows a schematic diagram of the water body splashing around in a flat state. For a small area fire or a forest fire with a slow spreading speed, it is enough to directly drop water on the fire site; for a forest fire with a fast spreading speed, the best way to extinguish the fire is The strategy is to control the spread of the fire, and the head, line, and canopy fires should be extinguished first. Figure 14 shows a schematic diagram of the fire extinguishing of a canopy fire on a slope. It can be seen from the figure that the water body at point A at the top of the canopy is splashed when touched, and cannot reach below the canopy; the fire under the canopy can be extinguished by the splashing of the water body. Therefore, different projection angles and different topography of high-altitude water drop will affect the splash direction of the water body and the fire-extinguishing effect of the fire head and line of fire. Therefore, the study of the landing range and water volume distribution of the water body is of great significance for accurate water drop and improvement of fire-fighting efficiency.

There are existing water distribution measurement devices designed based on high-altitude water injection experiments, such as a water distribution measurement device and measurement method for wind tunnel tests (202110643080.2), by assembling several water collection units on a plane, the water collection unit is a cave-like structure , which is equivalent to distributing holes one by one on the horizontal surface. These holes are used to collect high-altitude water drop. By measuring the water drop volume of each water collection unit, the distribution range of the aircraft's water drop and the distribution of water drop within these ranges can be obtained. . However, this device cannot simulate the actual on-site environment. On the one hand, it cannot reflect the influence of different topography and landforms on the distribution of water volume. Instead, the water body is directly cast into several catchment units (holes), resulting in distorted measurement results.

SUMMARY OF THE INVENTION

In view of this, the present disclosure provides an instantaneous water distribution measurement device, which solves the problem of distortion of measurement results due to the inconsistency of the simulated on-site environment with the actual water distribution measurement device based on high-altitude water drop.

In order to achieve the above purpose of the invention, the instantaneous water distribution measurement device includes a platform, and the platform is connected to several nano-water boxes, and is characterized in that:

The platform is connected to the tilting mechanism;

The water receiving box is connected with the lifting mechanism and the starting mechanism;

the slope-building mechanism for adjusting the slope of the platform to simulate the slope of the terrain;

The lifting mechanism is used to adjust the height of the water tank from the platform;

Adjusting the distribution of different heights of the water storage boxes on the platform to simulate a flat ground, a mountain, a group of buildings or a group of trees;

The starting mechanism is used for starting the water storage box to collect water instantaneously so as to measure the distribution of instantaneous water volume.

Further, the activation mechanism includes:

Sealing plate and air bag;

The airbag is placed in the water storage box;

The air bag is inflated to support the sealing plate to be on the same plane as the upper surface of the water storage box and block the upper port of the water storage box to prevent water from entering the water storage box;

The airbag is in a state of instantaneous deflation, and is used to drive the sealing plate to drop down instantaneously to open the upper port, so that the water collecting box can perform the instantaneous water collection.

Further, the pipeline at the bottom of the water tank is connected to a metering device;

The metering device is used to measure the water collection amount of the water storage box;

and/or,

The sealing plate is provided with a groove structure at the junction with the water storage box;

The groove structure is used for introducing the water collected by the nano water box into the metering device.

Further, the lifting mechanism is a hydraulic lifting mechanism;

The hydraulic lifting mechanism includes a hydraulic rod and a hydraulic cylinder;

The hydraulic cylinder applies a driving force to the hydraulic rod to drive the water tank to adjust the height.

Further, the hydraulic rod and the hydraulic cylinder are arranged in the housing;

The water receiving box, the housing, the hydraulic rod and the hydraulic cylinder form a lifting unit block;

The lifting unit block is connected to the platform.

Further, all the lifting unit blocks are connected to each other as an integrated block;

The platform is provided with a square hole;

The integrated block is connected at the square hole;

All the water tanks are in the same plane with the platform when they are lowered to the lowest point to simulate a flat ground.

Further, the lower surface of the square hole is connected to the box;

the box body is used to surround the integrated block;

An outlet is provided at the bottom of the box;

The outlet is used to introduce the water collected in all the water storage boxes into the metering device respectively;

and/or,

The metering device is a graduated cylinder.

Further, the inner wall of the box is coated with a hydrophobic coating;

The hydrophobic coating is used to avoid water residue in the tank.

Further, each of the hydraulic cylinders is connected to the oil tank pipeline;

The oil tank uses an oil pump to deliver hydraulic oil to the hydraulic cylinder to establish a hydraulic oil circuit;

and/or,

Each of the airbag pipelines is connected to an air pump;

The air pump is used to control inflation and deflation of the airbag.

Further, the platform is connected to support legs;

the tilting mechanism includes a hinge;

the support legs are connected to the platform through the hinge;

The connection angle of the hinge and the support leg corresponds to the slope of the platform.

The present disclosure has the following beneficial effects:

The instantaneous water volume distribution measuring device of the present disclosure, on the one hand, utilizes the instantaneous deflation of the airbag to make the water storage box collect water instantaneously, so as to achieve the purpose that the measuring device of the present disclosure can measure the instantaneous water volume distribution; on the other hand, the lifting mechanism is used to adjust The height distribution of the water tank from the platform can simulate the leveling of the ground, mountains, buildings or trees, and the slope of the platform is adjusted by using the slanting mechanism to simulate the slope of the terrain. The simulated on-site environment does not match the actual situation, so that the measurement results are distorted.

Description of drawings

The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:

1 is a schematic structural diagram of an instantaneous water distribution measuring device according to an embodiment of the present disclosure;

2 is a schematic structural diagram of a lifting unit block according to an embodiment of the present disclosure;

FIG. 3A is a mountain view simulated by an embodiment of the present disclosure;

3B is a plane tree group simulated by an embodiment of the present disclosure;

3C is a group of trees on a slope field simulated by an embodiment of the present disclosure;

4 is a schematic structural diagram of a water storage box according to an embodiment of the present disclosure;

5 is a schematic structural diagram of an airbag according to an embodiment of the present disclosure;

6A is a schematic structural diagram of a sealing plate according to an embodiment of the present disclosure;

6B is a schematic structural diagram of an upper end surface of a water storage box according to an embodiment of the present disclosure;

7 is a schematic structural diagram of a casing according to an embodiment of the present disclosure;

8 is a schematic structural diagram of an integrated block according to an embodiment of the present disclosure;

9 is a schematic structural diagram of a support ring according to an embodiment of the present disclosure;

10 is a schematic structural diagram of a conduit according to an embodiment of the present disclosure;

11 is a pipe connection diagram of an embodiment of the present disclosure;

12 is a color block area diagram of an embodiment of the present disclosure;

13 is a schematic diagram of a plane water body splashing described in the background of the present disclosure;

FIG. 14 is a schematic diagram of water splashing on a slope surface according to the background of the present disclosure.

Detailed ways

The present disclosure is described below based on examples, but it should be noted that the present disclosure is not limited to these examples. In the following detailed description of the disclosure, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can fully understand the present disclosure.

Furthermore, it should be understood by those of ordinary skill in the art that the accompanying drawings are provided only to illustrate the objects, features and advantages of the present disclosure and are not actually drawn to scale.

Meanwhile, unless the context clearly requires otherwise, throughout the specification and claims, words such as "including", "comprising" and the like should be construed in an inclusive rather than an exclusive or exhaustive sense; that is, "including but not limited to" means.

Fig. 1 is a schematic structural diagram of an instantaneous water distribution measuring device according to an embodiment of the present disclosure; Fig. 2 is a structural schematic diagram of a lifting unit block according to an embodiment of the present disclosure; as shown in Figs. Including a platform 1, the platform 1 is connected to an integrated block, the integrated block is composed of several lifting unit blocks 10, the lifting unit block 10 includes a water storage box 101, the platform 1 is respectively connected to the tilting mechanism, and the water storage box 101 is connected to the lifting mechanism and the starting mechanism. ; wherein, the tilting mechanism is used to adjust the slope of the platform 1 to simulate the slope of the terrain; the lifting mechanism is used to adjust the height of the water tank 101 from the platform 1, by adjusting the difference between the water tank 101 on the platform 1 The height distribution can simulate a flat ground, a mountain, a group of buildings or a group of trees; the activation mechanism is used to activate the water tank 101 to collect water instantaneously to measure the distribution of instantaneous water volume.

3A-3C illustrate several on-site environments that can be simulated by the instant water distribution measuring device according to the embodiment of the present disclosure through the tilting mechanism and the lifting mechanism, so it can effectively solve the problems of the existing water distribution measuring device based on high-altitude water drop. The simulated on-site environment does not match the actual situation, so that the measurement results are distorted.

In addition, the starting mechanism can realize the instantaneous water volume measurement in detail. FIG. 2 is a schematic structural diagram of a lifting unit block according to an embodiment of the present disclosure; FIG. Schematic diagram of the structure of the airbag according to the disclosed embodiment; FIG. 6A is a schematic view of the structure of the sealing plate according to the embodiment of the present disclosure; it can be seen in combination with the above drawings that the starting mechanism includes the sealing plate 11 and the airbag 12, and the airbag 12 is placed in the water container In the box 101, when the airbag 12 is inflated, the sealing plate 11 can be supported so that it is on the same plane as the upper surface of the water container 101 and the upper port of the water container 101 is blocked to prevent water from entering the water container 101; The instantaneous deflation state can simultaneously drive the sealing plate 11 to drop instantly to open the upper port of the water storage box 101. At this time, the high-altitude drop water above the water storage box 101 can be collected instantaneously to achieve the purpose of instantaneous water distribution measurement.

In FIG. 1 , the pipeline at the bottom of the water tank 101 is connected to a metering device, and the water collection amount of the water tank 101 is measured by the metering device. The metering device may be a measuring cylinder 8, and of course other forms of metering equipment.

6A is a schematic structural diagram of a sealing plate according to an embodiment of the present disclosure; FIG. 6B is a structural schematic diagram of an upper end surface of the water storage box according to an embodiment of the present disclosure; in conjunction with the above drawings, the sealing plate 11 is provided with a joint at the junction with the water storage box 101 . The groove structure A/B, and the corresponding part of the water storage box 101 is provided with a protruding structure A/B, and the protruding structure A/B of the water storage box 101 cooperates with the groove structure A/B of the sealing plate 11 to form a cover plate, The upper port of the water storage box 101 is blocked to prevent water from entering the water storage box 101 when the instantaneous water volume measurement is not performed. When the air bag 12 is deflated instantaneously and the sealing plate 11 falls down instantaneously, the groove structure of the sealing plate 11 and the protruding structure of the water storage box 101 are no longer connected, and the water falling above the sealing plate 11 can enter through the groove structure. into the water storage box 101 to achieve the purpose of instantaneous water collection. The bottom of the water receiving box 101 is connected to a pipeline, and a water outlet valve 16 is arranged on the pipeline. When the water outlet valve 16 is opened, the water collecting in the receiving water box 101 is introduced into the measuring cylinder 8 .

In order to ensure that all the water in the water receiving box flows into the measuring cylinder, preferably the bottom of the water receiving box is an inclined bottom, and the water outlet pipeline is arranged at the bottom end of the inclined bottom.

In FIG. 2 , the lifting mechanism of this embodiment adopts a hydraulic lifting mechanism. The hydraulic lifting mechanism includes a hydraulic rod 13 and a hydraulic cylinder 14 . The hydraulic cylinder 14 applies a driving force to the hydraulic rod 13 to drive the water storage box 101 Make height adjustments. The hydraulic cylinder 14 is connected with the oil tank 5 pipeline; the oil tank 5 uses the oil pump 6 to deliver hydraulic oil to the hydraulic cylinder 14 to establish a hydraulic oil circuit; an oil inlet valve 17 is arranged on the oil inlet pipeline between the hydraulic cylinder 14 and the oil tank 5, and an oil outlet pipeline is provided The oil outlet valve 18 and the air release valve 19 are arranged on the hydraulic cylinder 14 body.

FIG. 10 is a schematic structural diagram of the through pipe of the embodiment of the present disclosure; FIG. 11 is the connection diagram of the through pipe of the embodiment of the present disclosure;

In FIG. 2 , the airbag 12 is connected to the air pump 7 in the pipeline, and a safety valve 15 is arranged on the pipeline. The air pump 7 controls the inflation and deflation of the airbag 12 .

In FIG. 1 , FIG. 2 and FIG. 7 , the hydraulic rod 13 and the hydraulic cylinder 14 are arranged in the casing 102 , and the water tank 101 , the casing 102 , the hydraulic rod 13 and the hydraulic cylinder 14 form a lifting unit block 10 , and the lifting unit block 10 is connected to platform 1. 8 is a schematic structural diagram of an integrated block according to an embodiment of the present disclosure; all the lifting unit blocks 10 are connected to each other to form an integrated block, the platform 1 has a square hole, the integrated block is connected at the square hole, and all the water storage boxes 101 drop to the lowest point When it is in the same plane with platform 1, it can simulate the flat ground to measure the instantaneous water distribution of the flat ground terrain.

FIG. 7 is a schematic structural diagram of a casing according to an embodiment of the present disclosure; FIG. 9 is a structural schematic diagram of a support ring according to an embodiment of the present disclosure; wherein, the support ring corresponds to the square hole of the platform, and the inner wall of the support ring is provided with a plurality of first plug-in structures , in order to connect the shells 102 to form an integrated block, all the outermost shells 102 are connected to the first plug-in structure through the second plug-in structure, and each shell 102 is also assembled into an integrated block through the plug-in structure, respectively. The final integrated block is connected to the support ring through the first plug-in structure and the second plug-in structure.

In FIG. 1 , the lower surface of the square hole of the platform 1 is connected to the box 9 , the box 9 surrounds the integrated block, and the bottom of the box 9 is provided with an outlet through which the collected water in the water storage box 101 is introduced into the graduated cylinder 8 respectively. Preferably, the inner wall of the box body 9 is coated with a hydrophobic coating, which can prevent water from remaining in the box body 9, so that all the collected water in each nano-water box 101 flows into the measuring cylinder to ensure the accurate measurement of the collected water. .

In FIG. 1 , the platform 1 is connected to the support leg 4 , the tilting mechanism includes a hinge 2 , and the support leg 4 is connected to the platform 1 through the hinge 2 , and the connection angle between the hinge 2 and the support leg 4 corresponds to the slope of the platform 1 .

Specifically, the working process of the device for measuring the instantaneous water volume of the present disclosure will be described in conjunction with the accompanying drawings, so as to further illustrate the technical solutions and beneficial effects of the present disclosure:

Number each water tank, determine the terrain and landform of the water injection test to be simulated, and adjust the slope of the platform by adjusting the hinge to simulate the slope of the terrain;

Fill the airbag with gas, so that the sealing plate 11 just covers the upper port of the water container to ensure that the water container is in a closed state.

According to the characteristics of the terrain to be simulated, the height to be adjusted for each water tank 101 and the angle to be adjusted for the platform are given. First, the lifting mechanism of each water tank is adjusted respectively, so that the water tank 101 is at the set height, Then, each lifting unit block 10 is assembled into an integrated block through the plug-in structure, and the integrated block is continuously connected to the support ring through the plug-in structure, and finally the support ring is installed into the square hole of the platform 1 .

During the water injection experiment, select the water injection time to be measured, start the air pump to instantly release the gas in all the airbags at the lower part of all the water storage boxes, and after all the sealing plates 11 drop instantaneously, the falling water body above the platform will flow from both sides of each sealing plate 11. The groove structure entered into each water storage box 101, and then open the water outlet valve 16 of each water storage box 101 in turn to measure the water volume.

The water amount measured by the measuring cylinder 8 is counted into an Excel table, and the table data is made into the color block area diagram shown in Figure 12 through the matlab software, which can visually display the experimental results of the measurement.

The above-mentioned embodiments are only embodiments of the present disclosure, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present disclosure. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications, equivalent replacements, improvements, etc. can also be made, which all belong to the protection scope of the present disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the appended claims.

Claims (10)

1. An instantaneous water volume distribution measuring device, comprising a platform (1), the platform (1) is connected to a plurality of water storage boxes (101), characterized in that: The platform (1) is connected to the tilting mechanism; The water receiving box (101) is connected with the lifting mechanism and the starting mechanism; the tilting mechanism, used for adjusting the slope of the platform (1) to simulate the slope of the terrain; The lifting mechanism is used to adjust the height of the water storage box (101) from the platform (1); Adjusting the distribution of different heights of the water storage box (101) on the platform (1) for simulating a flat ground, a mountain, a group of buildings or a group of trees; The starting mechanism is used to start the water storage box (101) to collect water instantaneously to measure the distribution of instantaneous water volume. 2. The instantaneous water distribution measuring device according to claim 1, wherein the starting mechanism comprises: A sealing plate (11) and an air bag (12); The airbag (12) is placed in the water storage box (101); The air bag (12) is inflated to support the sealing plate (11) so that it is on the same plane as the upper surface of the water storage box (101) and block the upper port of the water storage box (101). , so as to prevent the water receiving box (101) from entering the water; The airbag (12) is in a state of instantaneous deflation, and is used to drive the sealing plate (11) to drop down instantaneously to open the upper port, so that the water storage box (101) performs the instantaneous water collection. 3. instantaneous water quantity distribution measuring device according to claim 2, is characterized in that: The bottom pipeline of the water storage box (101) is connected to a metering device; The metering device is used to measure the water collection amount of the water storage box (101); and/or, The sealing plate (11) is provided with a groove structure at the joint with the water storage box (101); The groove structure is used for introducing the water collected by the nano water box (101) into the metering device. 4. instantaneous water quantity distribution measuring device according to claim 3, is characterized in that: The lifting mechanism is a hydraulic lifting mechanism; The hydraulic lifting mechanism includes a hydraulic rod (13) and a hydraulic cylinder (14); The hydraulic cylinder (14) applies a driving force to the hydraulic rod (13) to drive the water storage box (101) to adjust the height. 5. instantaneous water quantity distribution measuring device according to claim 4, is characterized in that: The hydraulic rod (13) and the hydraulic cylinder (14) are arranged in the housing (102); The water receiving box (101), the housing (102), the hydraulic rod (13) and the hydraulic cylinder (14) form a lifting unit block (10); The lifting unit block (10) is connected to the platform (1). 6. The instantaneous water distribution measuring device according to claim 5, wherein: All the lifting unit blocks (10) are interconnected to form an integrated block; The platform (1) is provided with a square hole; The integrated block is connected at the square hole; All the water tanks (101) are in a plane with the platform (1) when they descend to the lowest point to simulate a flat ground. 7. instantaneous water quantity distribution measuring device according to claim 6, is characterized in that: The lower surface of the square hole is connected to the box (9); The box body (9) is used to surround the integrated block; An outlet is provided at the bottom of the box body (9); the outlet is used for introducing the collected water in all the water storage boxes (101) into the metering device respectively; and/or, The metering device is a graduated cylinder (8). 8. instantaneous water quantity distribution measuring device according to claim 7, is characterized in that: The inner wall of the box body (9) is coated with a hydrophobic coating; The hydrophobic coating is used to avoid water residue in the box (9). 9. The instantaneous water distribution measuring device according to claim 5, wherein: Each of the hydraulic cylinders (14) is connected to the oil tank (5) pipeline; The oil tank (5) uses an oil pump (6) to deliver hydraulic oil to the hydraulic cylinder (14) to establish a hydraulic oil circuit; and/or, Each of the air bags (12) pipelines is connected to the air pump (7); The air pump (7) is used to control the inflation and deflation of the airbag (12). 10. The instantaneous water distribution measuring device according to any one of claims 1-9, wherein: The platform (1) is connected to the support legs (4); The tilting mechanism includes a hinge (2); The support leg (4) is connected to the platform (1) through the hinge (2); The connection angle between the hinge (2) and the support leg (4) corresponds to the slope of the platform (1).

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