Nozzle plate testing device

Abstract

The utility model provides a nozzle plate testing device, which belongs to the field of nozzle plate testing, and comprises a nozzle plate detection assembly, the nozzle plate detection assembly comprises a stepped annular groove which penetrates through the detection table and is circumferentially distributed, the stepped annular groove is used for placing a nozzle plate, a water tank capable of conveying internal clear water into the hollow plate is installed on the support, a backflow pipe opposite to the liquid injection extrusion pipe is installed on the water tank, and the liquid injection extrusion pipe is connected with the liquid injection extrusion pipe. And the return pipe is fixed at the bottom of the detection table and is communicated with the stepped annular groove, and a second pressure detection piece is mounted on the return pipe. By comparing pressure values measured by the first pressure detection piece and the second pressure detection piece, pressure loss in front of and behind the nozzle plate can be calculated, pressure loss data can be analyzed, it is ensured that the pressure loss of the nozzle plate meets design requirements or product standards, detection is more accurate, clear water can be recycled, water resources are saved, and the production cost is reduced. And the detection cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to nozzle plate test technical field especially relates to a nozzle plate testing device. BACKGROUND

[0002] The net nozzle plate has complex micro-hole structure and can realize fine atomization or dispersion of fluid. The nozzle plate is widely applied in medical care, chemical processing, water treatment and 3D printing fields.

[0003] The net nozzle plate needs to be tested after production, and the pressure loss data is analyzed to ensure that the pressure loss of the nozzle plate meets the design requirements or product standards. The current common method is to install the net nozzle plate on the end of the water outlet pipe and fix the height, spray water mist through the net nozzle plate and fall on the ground, and measure the coverage area of the sprayed water mist to feedback that the pressure loss of the nozzle plate meets the design requirements or product standards. Although this measurement method is simple, the error is large, and when another nozzle plate is detected, the site needs to be changed, which is not convenient for actual detection.

[0004] Therefore, the application provides a nozzle plate testing device. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model provides a nozzle plate testing device.

[0006] The embodiment of the utility model provides a nozzle plate testing device, which comprises:

[0007] A support is provided with a detection table;

[0008] A nozzle plate detection assembly is provided, which comprises a stepped annular groove penetrating through the detection table and being distributed in a circle, the stepped annular groove being used for placing the nozzle plate, a hollow plate being movably arranged above the detection table, a plurality of liquid injection extrusion pipes being arranged at the bottom of the hollow plate and being communicated with the hollow plate, a first pressure detection member being arranged on the liquid injection extrusion pipe, a water tank being arranged on the support and being used for conveying clean water in the hollow plate, a return pipe being arranged on the water tank and being opposite to the liquid injection extrusion pipe, the return pipe being fixed at the bottom of the detection table and being communicated with the stepped annular groove, and a second pressure detection member being arranged on the return pipe.

[0009] Further, an installation plate is arranged at the upper end of the support, an electric push rod is arranged on the installation plate, a driving rod is fixed to the output end of the electric push rod, and the driving rod is coaxially and fixedly connected to the upper end of the hollow plate.

[0010] Further, a guiding mechanism is further included, the guiding mechanism includes two guide rails fixed on the support, guide blocks are slidably arranged on the guide rails, a moving plate is fixed on the two guide blocks, a connecting plate is fixed on the moving plate, and the connecting plate is fixedly connected with the driving rod.

[0011] Further, a water pump is installed on the water tank, a water inlet pipe is installed at the water inlet end of the water pump, the water inlet pipe is connected with the water tank, a water outlet pipe is installed at the water outlet end of the water pump, and the water outlet pipe is connected with the hollow plate.

[0012] Further, the water outlet pipe is a hose.

[0013] Further, the liquid injection extrusion pipe, the stepped annular groove and the return pipe are coaxially arranged, and the liquid injection extrusion pipe and the return pipe have the same size.

[0014] Compared with the prior art, the nozzle plate testing device has the following beneficial effects:

[0015] The nozzle plate testing device can calculate the pressure loss before and after the nozzle plate by comparing the pressure values measured by the first pressure detection member and the second pressure detection member, analyze the pressure loss data, ensure that the pressure loss of the nozzle plate meets the design requirements or product standards, and realize the recycling of clean water, thereby saving water resources and reducing detection costs. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of a nozzle plate testing device according to the present application.

[0017] Figure 2 FIG. 4 is a schematic view of a water pump in the nozzle plate testing device according to the present application.

[0018] Figure 3 FIG. 5 is a schematic view of a stepped annular groove in the nozzle plate testing device according to the present application.

[0019] Figure 4 FIG. 6 is a shape of a nozzle plate.

[0020] In the above drawings, 1 is a support, 2 is a detection table, 3 is a water tank, 4 is a mounting plate, 5 is a guide rail, 6 is a moving plate, 7 is an electric push rod, 8 is a driving rod, 9 is a connecting plate, 10 is a hollow plate, 11 is a liquid injection extrusion pipe, 12 is a first pressure detection member, 13 is a stepped annular groove, 14 is a return pipe, 15 is a second pressure detection member, 16 is a water outlet pipe, and 17 is a water pump. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be further described below in combination with the drawings and embodiments.

[0022] As Figures 1-4The utility model discloses a nozzle plate testing device, including:

[0023] Support 1, install detection platform 2 on support 1;

[0024] Nozzle plate detection subassembly, nozzle plate detection subassembly include the annular groove 13 of the circular distribution of setting through detection platform 2 and be circularly distributed, and the annular groove 13 for placing nozzle plate is annular groove 13's inner bottom fixed with sealing ring, when nozzle plate is placed in annular groove 13, nozzle plate part is located in annular groove 13, that is to say, the upper end is located in the outside of annular groove 13, so it is convenient to take subsequently, and nozzle plate and sealing ring are in contact, can ensure the leakproofness between annular groove 13.

[0025] The upper of detection platform 2 is equipped with the hollow plate 10 of up and down movement, and the upper end of support 1 is installed with mounting plate 4, and the mounting plate 4 is installed with electric push rod 7, and the output end of electric push rod 7 is fixed with drive rod 8, and drive rod 8 is coaxially fixedly connected with the upper end of hollow plate 10, in order to guarantee the stable up and down movement of hollow plate 10, still include guide mechanism, and guide mechanism includes two guide rails 5 fixed on support 1, and guide block slides on guide rail 5, and the two guide blocks are fixed with moving plate 6, and moving plate 6 is fixed with connecting plate 9, and connecting plate 9 is fixedly connected with drive rod 8, so that the stable up and down movement of liquid injection extrusion pipe 11 can be ensured.

[0026] The bottom of hollow plate 10 is installed with a plurality of liquid injection extrusion pipes 11 communicated with it, can install solenoid valve when liquid injection extrusion pipe 11 is close to the bottom position, close solenoid valve when not detecting, so that the clean water in liquid injection extrusion pipe 11 is not easy to flow out, and the clean water will not flow everywhere to make the detection site slippery, liquid injection extrusion pipe 11 is installed with first pressure detection piece 12, support 1 is installed with water tank 3 that can deliver internal clean water to hollow plate 10, water pump 17 is installed on water tank 3, water inlet pipe 18 is installed on the water inlet end of water pump 17, water inlet pipe 18 is connected with water tank 3, water outlet pipe 16 is installed on the water outlet end of water pump 17, and water outlet pipe 16 is connected with hollow plate 10, wherein, water outlet pipe 16 is a hose, which can deliver clean water to hollow plate 10 to realize the recycling of clean water.

[0027] Water tank 3 is installed with backflow pipe 14 opposite liquid injection extrusion pipe 11, and liquid injection extrusion pipe 11, annular groove 13 and backflow pipe 14 are coaxially arranged, and the size of liquid injection extrusion pipe 11 and backflow pipe 14 is the same, backflow pipe 14 is fixed on the bottom of detection platform 2 and is communicated with annular groove 13, backflow pipe 14 is installed with second pressure detection piece 15, and first pressure detection piece 12 and second pressure detection piece 15 can be pressure gauges or pressure sensors.

[0028] The working principle of the front and rear pressure loss detection of the nozzle plate is as follows:

[0029] Firstly, the nozzle plate to be detected is placed in the stepped annular groove 13 on the detection table 2. The design of the stepped annular groove 13 not only facilitates the positioning and fixing of the nozzle plate, but also ensures the sealing between the nozzle plate and the stepped annular groove 13 through the sealing ring at the bottom of the stepped annular groove 13, thereby preventing liquid leakage during the detection process.

[0030] Then, the electric push rod 7 is started, and through the up and down movement of the driving rod 8 and the hollow plate 10, the liquid injection extrusion pipe 11 is brought close to the nozzle plate and abuts against the nozzle plate. The sealing ring fixed at the bottom of the liquid injection extrusion pipe 11 ensures the sealing between the liquid injection extrusion pipe 11 and the nozzle plate, thereby ensuring the accuracy of the measurement. The guide mechanism ensures the stability of the hollow plate 10 and the liquid injection extrusion pipe 11 during the movement, thereby ensuring the accuracy of the detection.

[0031] Then, the water pump 17 pumps the clean water in the water tank 3 into the hollow plate 10, and then the liquid injection extrusion pipe 11 injects liquid to the nozzle plate. During the liquid injection process, the first pressure detection member 12 monitors the pressure change in the liquid injection extrusion pipe 11 in real time, reflecting the pressure condition at the front end of the nozzle plate.

[0032] At the same time, since the stepped annular groove 13, the return pipe 14 and the liquid injection extrusion pipe 11 are coaxially arranged, and the return pipe 14 is fixed at the bottom of the detection table 2 and communicates with the stepped annular groove 13, the clean water sprayed from the nozzle plate will flow back to the return pipe 14 along the stepped annular groove 13. During this process, the second pressure detection member 15 monitors the pressure change in the return pipe 14 in real time, reflecting the pressure condition at the rear end of the nozzle plate.

[0033] By comparing the pressure values measured by the first pressure detection member 12 and the second pressure detection member 15, the pressure loss before and after the nozzle plate (multiple nozzle plates are detected at the same time) can be calculated. By analyzing the pressure loss data, it is ensured that the pressure loss of the nozzle plate meets the design requirements or product standards, and the detection is more accurate compared with the existing technology.

[0034] In addition, since the water outlet pipe 16 is a flexible pipe, it can flexibly deliver clean water to the hollow plate 10, and the return pipe 14 is responsible for collecting the used clean water back into the water tank 3, realizing the recycling of clean water, saving water resources and reducing detection cost.

[0035] After the detection is completed, the output end of the electric push rod 7 is reset, driving the liquid injection extrusion pipe 11 to move upwards and reset, and after the nozzle plate is removed, other nozzle plates to be detected are replaced.

[0036] Among them, different sizes of nozzle plates use different equipment.

[0037] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A nozzle plate testing apparatus, characterized by, The utility model relates to a kind of nozzles plate detection device, including: Support (1), detection platform (2) is installed on the support (1); Nozzle plate detection assembly;The nozzle plate detection assembly includes annular groove (13) of circumferential distribution being arranged through detection platform (2) and being in the form of step, the annular groove (13) is used to place nozzle plate, hollow plate (10) is provided above the detection platform (2) and can be moved up and down, the bottom of the hollow plate (10) is equipped with multiple liquid injection extruding pipes (11) communicated with it, first pressure detection piece (12) is installed on the liquid injection extruding pipe (11), water tank (3) is installed on the support (1) and can be transported to the inside clear water to hollow plate (10), return pipe (14) is installed on the water tank (3) and is arranged opposite to liquid injection extruding pipe (11), the return pipe (14) is fixed in the bottom of detection platform (2) and is communicated with annular groove (13) of step, second pressure detection piece (15) is installed on the return pipe (14).

2. A nozzle plate testing apparatus as claimed in claim 1, wherein Wherein: The upper end of the support (1) is equipped with mounting plate (4), electric push rod (7) is installed on the mounting plate (4), drive rod (8) is fixed on the output end of the electric push rod (7), and the drive rod (8) is coaxially fixedly connected with the upper end of the hollow plate (10).

3. A nozzle plate testing apparatus as claimed in claim 2, wherein, Wherein: It further includes guide mechanism, the guide mechanism includes two guide rails (5) fixed on support (1), guide block is slid on the guide rail (5), and moving plate (6) is fixed on the two guide blocks, connecting plate (9) is fixed on the moving plate (6), and the connecting plate (9) is fixedly connected with drive rod (8).

4. The nozzle plate testing apparatus of claim 1, wherein Wherein: Water pump (17) is installed on the water tank (3), water inlet pipe (18) is installed on the water inlet end of the water pump (17), the water inlet pipe (18) is connected with water tank (3), and water outlet pipe (16) is installed on the water outlet end of the water pump (17), and the water outlet pipe (16) is connected with hollow plate (10).

5. A nozzle plate testing apparatus as claimed in claim 4, wherein Wherein: The water outlet pipe (16) is hose.

6. A nozzle plate testing apparatus as defined in claim 1, wherein Wherein: The liquid injection extruding pipe (11), annular groove (13) of step, return pipe (14) are coaxially arranged, and the liquid injection extruding pipe (11), return pipe (14) are same in size.

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