CN219956751U - Test equipment for testing hydraulic characteristics of flushing inner pipe of tunnel drain pipe - Google Patents

Abstract

The utility model discloses test equipment for testing the hydraulic characteristics of a flushing inner pipe of a tunnel drain pipe, belongs to the technical field of tunnel drainage, and aims to solve the problem of more accurately judging the hydraulic characteristics of the flushing inner pipe. The test equipment comprises a fixing device and a detection device; the fixing device comprises a pipeline bracket and a pipeline fixing piece; the detection means comprise a pressure sensor. The inner washing pipe to be tested can be placed through the pipeline bracket with the inner washing pipe fixing position, and the inner washing pipe to be tested can be fixed at the inner washing pipe fixing position through the pipeline fixing piece; simultaneously, through the pressure sensor of setting in the fixed position downside of washing the inner tube, can detect the pressure of washing hole injection rivers to the hydraulic characteristic of washing the inner tube is comparatively accurately judged to the technician, thereby does benefit to its according to the actual condition design of tunnel drain pipe diameter reasonable, washing hole trompil mode more excellent washes the inner tube.

Description

Test equipment for testing hydraulic characteristics of flushing inner pipe of tunnel drain pipe

Technical Field

The utility model belongs to the technical field of tunnel drainage, and particularly relates to test equipment for testing hydraulic characteristics of a flushing inner pipe of a tunnel drainage pipe.

Background

In geological complex areas such as karst, rich water, fault development and the like, the blocking of the tunnel drain pipe is one of important reasons for causing tunnel damage, the blocking of the tunnel drain pipe greatly increases the external water pressure of the lining structure, and the rupture of the lining structure can be caused, so that the operation safety, the management and maintenance cost of the tunnel are seriously influenced. To tunnel drain pipe jam problem, mainly adopt the physical cleaning technique to solve at present, because tunnel drain pipe belongs to conceal the component, and the drain pipe diameter is less, is inconvenient for directly developing cleaning work of large-scale cleaning machine, leads to tunnel drain pipe cleaning effect not good.

In order to improve the cleaning effect, technicians develop an anti-blocking tunnel drain pipe with a built-in tunnel drain pipe flushing inner pipe (simply referred to as a flushing inner pipe) on the basis of a physical cleaning technology, namely, a flushing inner pipe 400 is arranged inside an original tunnel drain pipe, and a plurality of flushing holes 410 are formed in the pipe wall of the flushing inner pipe 400, as shown in fig. 1. When the tunnel drain pipe needs to be cleaned, high-pressure water is pumped by the high-pressure water pump to enter the flushing inner pipe 400, so that the high-pressure water is sprayed out through a plurality of flushing holes 410 formed in the flushing inner pipe 400 to flush the blocking objects in the tunnel drain pipe, and a better cleaning effect is achieved.

The flush inner tube 400 is typically a plastic hose with circumferentially and longitudinally equally spaced openings. The opening pitch and the pore size of the flushing holes 410 on the flushing inner pipe 400 are main factors determining the hydraulic characteristics thereof, and the hydraulic characteristics of the flushing inner pipe 400, the speed of pumping fluid by the high-pressure water pump and the like have great influence on the flushing effect, and are direct factors determining whether the flushing of the tunnel drain pipe can be performed or not. However, the hydraulic characteristic of the flushing inner tube 400 is determined by the skilled person mainly based on his own experience, which is not only not accurate enough, but also the result of the determination by the skilled person with different experience is greatly different.

Disclosure of Invention

The utility model provides test equipment for testing the hydraulic characteristics of a flushing inner pipe of a tunnel drain pipe, and aims to solve the problem of how to judge the hydraulic characteristics of the flushing inner pipe more accurately.

The technical scheme adopted for solving the technical problems is as follows: the test equipment for testing the hydraulic characteristics of the inner tube of the tunnel drain pipe flushing comprises a fixing device and a detection device;

the fixing device comprises a pipeline bracket with a fixing position of the flushing inner pipe and a pipeline fixing piece arranged at the fixing position of the flushing pipe;

the detection device comprises a pressure sensor arranged at the lower side of the fixed position of the flushing inner tube.

Further, the pipe bracket comprises a bracket main body and bracket legs;

the flushing inner tube is fixedly positioned at the side part of the bracket main body;

the support legs are arranged at the bottom of the support main body.

Further, the bracket main body is in a circular ring shape;

the inner flushing pipe is fixedly positioned at the outer side of the bracket main body;

the support legs are at least three and are uniformly distributed along the lower edge of the support body.

Further, the support main body mainly comprises at least two arc-shaped pipe sections which are connected end to end, and the parts, which are connected with each other, of the two arc-shaped pipe sections which are connected at will are locked and fixed through support bolts.

Further, the pipeline fixing piece comprises a middle connecting piece, a first anchor ear and a second anchor ear;

the first anchor ear is arranged at one end of the middle connecting piece and is fixedly connected with the bracket main body;

the second anchor ear is provided with a flushing inner pipe fixing hole which is arranged at the other end of the middle connecting piece.

Further, the number of the pipeline fixing parts is at least two, and the pipeline fixing parts are distributed at intervals along the length direction of the bracket main body;

the first anchor ear comprises a first inner anchor ear plate arranged at one end of the middle connecting piece and a first outer anchor ear plate connected with the first inner anchor ear plate through a first anchor ear bolt;

a bracket main body clamping hole is formed between the first inner hoop plate and the first outer hoop plate;

the first anchor ear is clamped and fixed on the bracket main body through the bracket main body clamping hole;

the second anchor ear comprises a second inner anchor ear plate arranged at the other end of the middle connecting piece and a second outer anchor ear plate connected with the second inner anchor ear plate through a second anchor ear bolt;

the inner flushing pipe fixing holes are clamping holes formed between the second inner hoop plate and the second outer hoop plate.

Further, the pipeline bracket further comprises a support piece arranged on the bracket leg;

the detection device further comprises a sensor base arranged on the upper end supporting part of the supporting piece;

the pressure sensor is disposed on the sensor base.

Further, the fixed position of the flushing inner tube is in a circular ring shape;

the sensor base is of an annular structure coaxial with the fixed position of the flushing inner tube and mainly comprises at least two arc base plates connected end to end;

the pressure sensors are at least two and are uniformly distributed on the sensor base around the central axis of the sensor base.

Further, the test device also comprises a water supply device;

the water supply device comprises a water supply tank and a high-pressure water pump;

the water pumping port of the high-pressure water pump is connected with the water outlet of the water supply tank through a water pumping pipe, and the water outlet of the high-pressure water pump is connected with a water draining pipe connected with the water inlet of the flushing inner pipe.

Furthermore, the joints of the water suction pipe and the water discharge pipe are fixed by adopting a hose clamp.

The beneficial effects of the utility model are as follows: the test equipment is simple in structure and convenient to use, the inner washing pipe to be tested can be placed through the pipeline bracket with the inner washing pipe fixing position, and the inner washing pipe to be tested can be fixed at the inner washing pipe fixing position through the pipeline fixing piece; simultaneously, through the pressure sensor of setting in the fixed position downside of washing the inner tube, can detect the pressure of washing hole injection rivers to the hydraulic characteristic of washing the inner tube is comparatively accurately judged to the technician, thereby does benefit to its according to the actual condition design of tunnel drain pipe diameter reasonable, washing hole trompil mode more excellent washes the inner tube.

Drawings

FIG. 1 is a schematic view of an embodiment of a flushing inner pipe of a tunnel drain pipe;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is a schematic view of an embodiment of a pipe bracket in a fixture;

FIG. 4 is a schematic view of the connection of the arcuate tube segments in the stent body;

FIG. 5 is a schematic illustration of an embodiment of a pipe fitting in a fixture;

FIG. 6 is a schematic view of the mounting structure of the sensor base on the pipe bracket;

FIG. 7 is a schematic diagram of an embodiment of another embodiment of the present utility model;

marked in the figure as: fixing device 100, pipe bracket 110, bracket body 111, bracket leg 112, bracket bolt 113, support 114, pipe fixing 120, intermediate connection 121, first inner hoop plate 122, first hoop bolt 123, first outer hoop plate 124, bracket body clamping hole 125, second inner hoop plate 126, second hoop bolt 127, second outer hoop plate 128, flushing inner pipe fixing hole 129, detecting device 200, pressure sensor 210, sensor base 220, base connection screw 221, water supply device 300, water supply tank 310, high pressure water pump 320, water suction pipe 321, water drain pipe 322, flushing inner pipe 400, flushing hole 410.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms "left", "right", "upper", "lower", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or component in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model; "plurality" generally refers to two or more; "plurality" generally refers to two or more; the expression "consisting essentially of or consisting of … …" is to be interpreted as also containing structural elements not mentioned in this sentence; "and/or" is merely one association relationship describing an association object, meaning that three relationships may exist, for example: a and/or B may represent: a exists alone, A and B exist together, and B exists alone. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 2, the test apparatus for testing the hydraulic characteristics of the inner pipe of the tunnel drain pipe flushing includes a fixing device 100 and a detecting device 200;

the fixture 100 includes a pipe bracket 110 having a flush pipe fixing position, and a pipe fixing member 120 provided at the flush pipe fixing position; the pipe bracket 110 is mainly used for providing a fixing position of the inner washing pipe for placing the inner washing pipe 400 and can provide support for the inner washing pipe 400 at the fixing position of the inner washing pipe; the pipe fixing piece 120 is mainly used for fixing one or more inner flushing pipes 400 in the inner flushing pipe fixing position so as to prevent the inner flushing pipes 400 from moving or swinging in the test process; the pipe fixture 120 may be of various types, such as: a hanging buckle, a supporting hanger, a flange, a support, a clamp and the like;

the detecting device 200 includes a pressure sensor 210 provided at the lower side of the fixed position of the flushing inner tube; the pressure sensor 210 is a sensor for measuring pressure, which can detect the pressure on which the water jet injected from the flushing port 410 acts, so that a technician can more accurately judge the hydraulic characteristic of the flushing inner pipe.

The test equipment is simple in structure and convenient to operate, can be directly used for testing the flushing inner pipe 400, so that jet pressure of the flushing hole 410 is under the influence of factors such as different flow sending speeds, different hole opening distances, different hole opening diameters and the like, and the relation between the geometric parameters of the flushing inner pipe 400, the flow sending speeds and the like and the jet pressure of the flushing hole 410 is analyzed to reveal the hydraulic characteristic rule of the flushing inner pipe 400, so that a technician can design the flushing inner pipe 400 with reasonable pipe diameter and better hole opening modes of the flushing hole 410 according to the actual working conditions of a tunnel drain pipe.

When the test equipment is used for testing the hydraulic characteristics of the inner flushing pipe 400, the inner flushing pipe 400 to be tested needs to be placed at the fixed position of the inner flushing pipe, the posture of the inner flushing pipe 400 is adjusted to ensure that at least one pressure sensor 210 is opposite to one flushing hole 410, and then the inner flushing pipe 400 is fixed through the pipeline fixing piece 120; then, one end of the flushing inner pipe 400 is plugged, and the other end is connected with a water source through a pipeline; finally, water is fed into the flush inner tube 400 for testing.

With this test apparatus, the skilled person can perform at least the following tests:

1) Testing jet pressure of the flushing holes 410 with different apertures at the same flow rate and the same hole spacing;

2) Testing the jet pressure of the flushing holes 410 with different hole spacing under the same flow speed and the same aperture;

3) Flush holes 410 of the same aperture spacing and the same bore diameter were tested for jet pressure at different feed rates.

Specifically, the pipe bracket 110 includes a bracket body 111 and bracket legs 112; the stent body 111 is a body part of the pipe stent 110, and the flushing inner pipe fixing position is usually a side position of the stent body 111, for example: the upper side, the lower side, the left side or the right side of the stand main body 111; the bracket legs 112 are support members of the pipe bracket 110, which are generally disposed at the bottom of the bracket body 111. In order to secure stability of the pipe bracket 110, a plurality of bracket legs 112 are generally provided at the bottom of the bracket body 111. The pipeline bracket 110 with the structure has the advantages of simple structure, convenient use and lower manufacturing cost.

To enable testing of longer flush inner tubes 400 and to reduce equipment footprint, the stent body 111 is made to be annular in shape as shown in FIG. 3; the inner tube is fixed to the outside of the bracket body 111; the support legs 112 are at least three and are evenly distributed along the lower edge of the support body 111. The support main body 111 of this structure can also make to wash the inner tube 400 and form certain radian to simulate the actual service condition of washing the inner tube 400 in the tunnel of taking the radian, and then obtain the test result that accords with engineering reality more.

Preferably, as shown in fig. 3 and 4, the bracket main body 111 is mainly composed of at least two arc-shaped pipe sections connected end to end, and any connecting parts of the two arc-shaped pipe sections are locked and fixed by the bracket bolts 113. The support main body 111 of this structure is very convenient to install, disassemble and carry, and the environmental adaptability of the test equipment is improved. The stent body 111 is preferably comprised of six arcuate tube segments joined end to end.

Preferably, as shown in fig. 5, the pipe fixing member 120 includes an intermediate connecting member 121, a first anchor ear and a second anchor ear; the first anchor ear is arranged at one end of the middle connecting piece 121 and is fixedly connected with the bracket main body 111; the second anchor ear has a flushing inner tube fixing hole 129 provided on the other end of the intermediate connecting member 121. The pipe fixing member 120 of this structure is simple in structure and convenient to fix, and can ensure that it does not substantially move or swing during the test after the inner pipe 400 is fixedly washed.

On the basis of the above, in order to further improve the fixing effect and facilitate the installation and fixing, as shown in fig. 5, there are at least two pipe fixing members 120 which are spaced apart along the length direction of the bracket main body 111; the first anchor ear includes a first inner anchor ear plate 122 provided on one end of the intermediate connecting member 121, and a first outer anchor ear plate 124 connected with the first inner anchor ear plate 122 by a first anchor ear bolt 123; a bracket body clamping hole 125 is formed between the first inner hoop plate 122 and the first outer hoop plate 124; the first anchor ear is clamped and fixed on the bracket main body 111 through the bracket main body clamping hole 125; the second anchor ear includes a second inner anchor ear plate 126 provided on the other end of the intermediate connecting member 121, and a second outer anchor ear plate 128 connected with the second inner anchor ear plate 126 by a second anchor ear bolt 127; the flushing inner tube securing holes 129 form clamping holes between the second inner hoop plate 126 and the second outer hoop plate 128.

Through the first staple bolt and the second staple bolt of above-mentioned structure, do benefit to this pipeline mounting 120 and the support main part 111 of different cross section sizes and wash inner tube 400 to be connected fixedly, the commonality is good, does benefit to this test equipment to the test of washing inner tube 400 of different pipe diameters.

To facilitate installation of the pressure sensor 210, as shown in connection with fig. 2 and 6, the conduit bracket 110 further includes a support 114 disposed on the bracket leg 112; the detecting device 200 further includes a sensor base 220 provided on an upper end supporting portion of the supporting member 114; the pressure sensor 210 is disposed on a sensor base 220.

The detection device 200 generally further includes components such as a signal conditioning circuit, a data processor, and a display, which can convert the pressure detected by the pressure sensor 210 into an electrical signal, an optical signal, or other signals, then process and analyze the signals, and finally visually display the signals through the display, so that a technician can further conveniently and accurately determine the hydraulic characteristic of the inner tube 400; or, through presetting a judgment standard in the data processor, whether the hydraulic characteristic of the flushing inner pipe 400 meets the standard is directly displayed through a display after being processed and analyzed. Computer programs involved in the processes of pressure conversion, data processing, analysis and the like are all of the prior art, and are not described in detail.

On the basis of the above, in order to improve the test accuracy, as shown in fig. 2, the fixing position of the flushing inner tube is circular; the sensor base 220 is an annular structure coaxial with the fixed position of the flushing inner tube, and mainly comprises at least two arc base plates connected end to end; the pressure sensors 210 are at least two and are evenly distributed on the sensor base 220 around the central axis of the sensor base 220.

Preferably, the sensor base 220 is composed of six arc-shaped base plates connected end to end, and the end of each arc-shaped base plate is fixedly connected with the upper end supporting part of the supporting member 114 through a base connecting screw 221, as shown in fig. 6.

As a preferred embodiment of the present utility model, as shown in fig. 7, the test apparatus further includes a water supply device 300; the water supply device 300 includes a water supply tank 310 and a high pressure water pump 320; the pumping port of the high-pressure water pump 320 is connected with the water outlet of the water supply tank 310 through a pumping pipe 321, and the water outlet of the high-pressure water pump 320 is connected with a water outlet pipe 322 connected with the water inlet of the flushing inner pipe 400.

Among them, the water supply tank 310 is mainly used to supply wash water for the hydraulic characteristic test of the wash inner pipe 400.

The high pressure water pump 320 is a mechanical device specially used for generating high pressure water flow, and is generally composed of a motor, a pump head, a pressure control system, etc., and can pressurize flushing water from a low pressure state to a high pressure state to generate high pressure, high speed water flow; the high pressure water pump 320 is typically capable of pressurizing the flushing water to above 100PSI so that the flow rate and pressure of the flushing water reach the flushing requirements, thereby more realistically simulating the actual flushing scenario of the flushing inner pipe 400 to the tunnel drain.

In order to avoid loosening the connection of the pipes due to high-pressure water flow, it is preferable that the connection of the water suction pipe 321 and the water discharge pipe 322 are fixed by using a hose clamp.

Examples

Some test equipment for testing the hydraulic characteristics of the inner pipe of the tunnel drain pipe flushing pipe comprises a fixing device 100, a detecting device 200 and a water supply device 300;

the fixture 100 includes a pipe bracket 110 having a flush pipe fixing position, and a pipe fixing member 120 provided at the flush pipe fixing position;

the pipe bracket 110 includes a bracket body 111, bracket legs 112, and a support 114; the bracket main body 111 is of a circular ring-shaped structure with the diameter of 5m, and consists of six arc-shaped pipe sections which are connected end to end, and the connecting parts of any two arc-shaped pipe sections are locked and fixed through bracket bolts 113; the arc-shaped pipe section is made of a steel pipe with the inner diameter of 32 mm; the inner tube is fixed to the outside of the bracket body 111; the bracket legs 112 are arranged at the bottom of the bracket main body 111, are at least three and are uniformly distributed along the lower edge of the bracket main body 111; the bracket leg 112 is made of a steel pipe with an inner diameter of 32mm and a length of 1m, and a steel plate with a length of 100mm, a width of 100mm and a thickness of 3mm is welded at the lower end of the bracket leg to serve as a supporting pad; each leg 112 has a support 114 disposed thereon; the supporting member 114 is welded to the leg 112, and is made of a steel pipe having an inner diameter of 32mm, and has an upper end welded with a steel plate having a length of 100mm x a width of 100mm x a thickness of 3mm as an upper end supporting portion, and a plurality of screw holes are reserved in the upper end supporting portion;

at least two pipeline fixing pieces 120 are arranged at intervals along the length direction of the bracket main body 111; the pipe fixing member 120 includes an intermediate connecting member 121, a first anchor ear and a second anchor ear; the intermediate connection 121 is made of a steel pipe having a diameter of 20mm and a length of 80 mm; the first anchor ear includes a first inner anchor ear plate 122 provided on one end of the intermediate connecting member 121, and a first outer anchor ear plate 124 connected with the first inner anchor ear plate 122 by a first anchor ear bolt 123; a bracket main body clamping hole 125 is formed between the first inner hoop plate 122 and the first outer hoop plate 124, the standard diameter of the bracket main body clamping hole 125 is 32mm, the first inner hoop plate 122 and the first outer hoop plate 124 can be relatively close to or far away from each other by adjusting the tightness of the first hoop bolt 123, and the size of the bracket main body clamping hole 125 is changed; the first anchor ear is clamped and fixed on the bracket main body 111 through the bracket main body clamping hole 125; the second anchor ear includes a second inner anchor ear plate 126 provided on the other end of the intermediate connecting member 121, and a second outer anchor ear plate 128 connected with the second inner anchor ear plate 126 by a second anchor ear bolt 127; the inner tube flushing fixing hole 129 is a clamping hole formed between the second inner hoop plate 126 and the second outer hoop plate 128, the standard diameter of the inner tube flushing fixing hole 129 is 20mm, and the second inner hoop plate 126 and the second outer hoop plate 128 can be relatively close to or far away from each other by adjusting the tightness of the second hoop bolt 127, so that the size of the inner tube flushing fixing hole 129 is changed;

the sensing device 200 includes a pressure sensor 210 and a sensor base 220 provided on an upper end supporting portion of the supporting member 114; the piezoresistor type film pressure sensor is selected as the pressure sensor 210, has the advantages of light weight, water resistance, convenient test and the like, and is suitable for measuring jet pressure data of the flushing hole 410; the pressure sensor 210 is disposed on the sensor base 220 at the lower side of the fixed position of the flushing inner tube; the sensor base 220 has an annular structure coaxial with the holder main body 111, and has a diameter of 5.2m; the sensor base 220 is composed of six arc base plates connected end to end; the arc-shaped base plate is made of arc-shaped pine boards with the width of 100mm and the thickness of 20 mm; at least two pressure sensors 210 are uniformly distributed on the sensor base 220 around the central axis of the sensor base 220;

the water supply device 300 includes a water supply tank 310 and a high pressure water pump 320; the water pumping port of the high-pressure water pump 320 is connected with the water outlet of the water supply tank 310 through a water pumping pipe 321, and the water outlet of the high-pressure water pump 320 is connected with a water discharging pipe 322 which is used for being connected with the water inlet of the flushing inner pipe 400; the joints of the water pumping pipe 321 and the water discharging pipe 322 are respectively fixed by a hose clamp.

The inner tube 400 was tested with the above test apparatus, the procedure was as follows:

a. preparing the water supply device 300: cleaning impurities in the water supply tank 310, and connecting tap water into the water supply tank 310 for standby; the valve of the high-pressure water pump 320 is a ventilation valve;

b. the pipe support 110 is installed: in the place beside the water supply device 300, six arc-shaped pipe sections are connected in a tail-end nested way to form a bracket main body 111 with a circular ring-shaped structure, and the connecting parts of any two connected arc-shaped pipe sections are locked and fixed through bracket bolts 113;

c. the pipe fixing member 120 is installed: unscrewing the first anchor ear bolt 123, clamping the first inner anchor ear plate 122 and the first outer anchor ear plate 124 on the pipeline bracket 110, and then screwing the first anchor ear bolt 123 to fix the first inner anchor ear plate 122 and the first outer anchor ear plate 124 together; a sleeve fixing member 120 is installed on the pipe bracket 110 at intervals of 1m using the same method;

d. mounting the flushing inner tube 400: sequentially penetrating the tail end of the flushing inner pipe 400 through the second anchor ear of each pipeline fixing piece 120, adjusting the flushing inner pipe 400 to a uniform horizontal height, enabling the flushing hole 410 to be opposite to the ground, and screwing the second anchor ear bolt 127 to fix the flushing inner pipe 400;

e. the flush inner tube 400 is connected: connecting the water outlet of the water drain pipe 322 with one end of the flushing inner pipe 400, and clamping by using a hose clamp to ensure that the joint is watertight; the other end of the flush inner tube 400 is plugged.

f. The sensor base 220 is fixed: a sensor base 220 is mounted on the support 114 of the pipe bracket 110, so that the end of the arc-shaped base plate is positioned at the upper end support part of the support 114 and is fixedly connected through a base connecting screw 221;

g. the pressure sensor 210 is located: placing the pressure sensor 210 on the sensor base 220 portion immediately below the flushing hole 410 and fixing it with glue;

h. whether the whole test equipment is firmly installed and tightly connected is checked, the switch of the high-pressure water pump 320 can be turned on after the operation is finished, the jet pressure of the corresponding flushing hole 410 is detected through the pressure sensor 210 after jet stabilization, the jet pressure of the flushing hole 410 corresponding to different pumping speeds can be obtained only by changing the outlet flow of the high-pressure water pump 320, or the flushing inner pipe 400 with different hole spacing and/or different hole diameters can be tested under the same pumping speed.

Therefore, the test equipment can test the hydraulic characteristic of the inner pipe 400 which is washed in the same proportion as the actual tunnel drain pipe, has the advantages of repeated disassembly and assembly, short test time, quick test data acquisition and the like, can be used for rapidly completing the comparison test under different working conditions, and has wide application prospect in the field of the blockage cleaning of the tunnel drain system.

Claims (10)

1. A test equipment for testing tunnel drain pipe washes inner tube hydraulic characteristic, its characterized in that: comprises a fixing device (100) and a detecting device (200);

the fixture (100) includes a pipe bracket (110) having a flush pipe fixing location, and a pipe fixture (120) disposed at the flush pipe fixing location;

the detection device (200) comprises a pressure sensor (210) arranged at the lower side of the fixed position of the flushing inner tube.

2. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe according to claim 1, wherein: the pipe bracket (110) comprises a bracket main body (111) and bracket legs (112);

the flushing inner tube is fixedly positioned at the side part of the bracket main body (111);

the bracket legs (112) are arranged at the bottom of the bracket main body (111).

3. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe according to claim 2, wherein: the bracket main body (111) is in a circular ring shape;

the inner flushing pipe is fixedly positioned at the outer side of the bracket main body (111);

the number of the bracket legs (112) is at least three, and the bracket legs are uniformly distributed along the lower edge of the bracket main body (111).

4. A test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe according to claim 3, wherein: the bracket main body (111) mainly comprises at least two arc-shaped pipe sections which are connected end to end, and the connecting parts of the two arc-shaped pipe sections which are connected at will are locked and fixed through bracket bolts (113).

5. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe according to claim 2, wherein: the pipeline fixing piece (120) comprises an intermediate connecting piece (121), a first hoop and a second hoop;

the first anchor ear is arranged at one end of the middle connecting piece (121) and is fixedly connected with the bracket main body (111);

the second anchor ear has a flushing inner tube fixing hole (129) provided on the other end of the intermediate connecting member (121).

6. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe as defined in claim 5, wherein: at least two pipeline fixing pieces (120) are distributed at intervals along the length direction of the bracket main body (111);

the first anchor ear comprises a first inner anchor ear plate (122) arranged on one end of the middle connecting piece (121), and a first outer anchor ear plate (124) connected with the first inner anchor ear plate (122) through a first anchor ear bolt (123);

a bracket main body clamping hole (125) is formed between the first inner hoop plate (122) and the first outer hoop plate (124);

the first anchor ear is clamped and fixed on the bracket main body (111) through the bracket main body clamping hole (125);

the second anchor ear comprises a second inner anchor ear plate (126) arranged at the other end of the middle connecting piece (121), and a second outer anchor ear plate (128) connected with the second inner anchor ear plate (126) through a second anchor ear bolt (127);

the inner flushing pipe fixing holes (129) are clamping holes formed between the second inner hoop plate (126) and the second outer hoop plate (128).

7. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe according to any one of claims 2 to 6, wherein: the pipe support (110) further comprises a support (114) provided on the support leg (112);

the detection device (200) further comprises a sensor base (220) arranged on the upper end support part of the support (114);

the pressure sensor (210) is disposed on a sensor base (220).

8. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe as defined in claim 7, wherein: the fixed position of the flushing inner tube is in a circular ring shape;

the sensor base (220) is of an annular structure coaxial with the fixed position of the flushing inner tube, and mainly comprises at least two arc base plates connected end to end;

the pressure sensors (210) are at least two and are uniformly distributed on the sensor base (220) around the central axis of the sensor base (220).

9. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe as defined in claim 7, wherein: also comprises a water supply device (300);

the water supply device (300) comprises a water supply tank (310) and a high-pressure water pump (320);

the water pumping port of the high-pressure water pump (320) is connected with the water outlet of the water supply tank (310) through a water pumping pipe (321), and the water outlet of the high-pressure water pump (320) is connected with a water outlet pipe (322) connected with the water inlet of the flushing inner pipe (400).

10. The test apparatus for testing the hydraulic characteristics of a tunnel drain flushing pipe as defined in claim 9, wherein: the joints of the water suction pipe (321) and the water discharge pipe (322) are fixed by adopting a hose clamp.