CN114383990A - A high-pressure water nozzle permeability test device - Google Patents

Abstract

The invention relates to a device for testing permeability of a high-pressure water nozzle, which comprises a conical water nozzle, a locking mechanism, a base, a pressure gauge, a valve and a water pipe, wherein the conical water nozzle is arranged on the base; the water pipe is fixedly connected to the base, a valve and a pressure gauge are mounted on the water pipe, one end of the water pipe is fixedly connected with a conical water nozzle, and the high-pressure water nozzle is tightly pressed and fixed on the conical water nozzle through a locking mechanism; the locking mechanism comprises a locking hook, a locking ring, a locking wheel and a locking handle, the spring is sleeved on the catheter, the locking ring is fixedly connected with the locking hook and is in sliding connection with the catheter, and the locking ring can slide on the catheter along with the compression of the spring; the guide pipe can pass through the base to do linear reciprocating motion; the locking wheel is fixedly connected to the base, the locking handle is sleeved with the catheter, and the upper half part of the edge of the end part of the locking wheel is lengthened from short to long along the circumferential direction. The advantages are that: the device has the advantages of reasonable structure, simple operation, obvious inspection effect and capability of accurately judging the blocking condition of two passages of the high-pressure water nozzle.

Description

A high-pressure water nozzle permeability test device

technical field

The invention belongs to the field of high-pressure water nozzle maintenance, in particular to a high-pressure water nozzle permeability test device.

Background technique

The bending section of the continuous casting machine is an important equipment of the continuous casting slab production line. It is installed between the mold and the sector. There are 144 high-pressure water nozzles. Its main function is to spray water to cool the billet shell formed by the mold. Impurities in the cooling water often cause the nozzles to clog. The blocked nozzle needs to be disassembled and repaired for reuse. However, after the nozzle is repaired, there is no detection device, and the repair effect is difficult to judge. It often occurs that the two passages of the repaired nozzle are still blocked, and it is difficult to ensure a good repair effect, resulting in During the production process after the nozzle is online, it cannot spray water to cool the billet shell formed by the mold normally, thus affecting the quality of the billet.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a device for testing the permeability of high-pressure water nozzles, which can improve the repair quality of high-pressure water nozzles after being blocked, and can perform offline inspection on their permeability. A high-pressure water nozzle permeability testing device.

To achieve the above object, the present invention is achieved through the following technical solutions:

A high-pressure water nozzle permeability testing device, comprising a conical water nozzle, a locking mechanism, a base, a pressure gauge, a valve, and a water pipe; the water pipe is fixedly connected to the base, a valve and a pressure gauge are installed on the water pipe, and one end of the water pipe is fixedly connected There is a conical water nozzle, and the high-pressure water nozzle is pressed and fixed on the conical water nozzle by a locking mechanism.

The locking mechanism includes a locking hook, a spring, a locking ring, a guide tube, a locking wheel, and a locking handle, the spring is sleeved on the guide tube, the first and last ends of the guide tube are fixed with stop plates, and one end of the spring is connected to the guide tube head. The stop plate at the end is fixedly connected, the other end of the spring is fixedly connected with the locking ring, the locking ring is fixedly connected with the locking hook, and the locking ring is slidably connected with the catheter. Sliding upwards; the catheter can go through the base to reciprocate in a straight line; the locking wheel is fixedly connected to the base, the head of the locking handle is a sleeve, the sleeve is sleeved with the catheter, and the end abuts the stopper at the end of the catheter On the plate, the upper half of the end edge of the locking wheel is from short to long in the circumferential direction.

Stops are provided at both ends of the upper half of the end edge of the locking wheel.

The two ends of the upper half of the end edge of the locking wheel are provided with gaps.

The tapered water nozzle is covered with a rubber pad.

There are two water pipes.

It also includes a guide tube, the guide tube is a hollow tube, the guide tube is fixedly connected to the base, the guide tube is sleeved in the guide tube, and the guide tube can pass through the guide tube for linear reciprocating motion.

Compared with the prior art, the beneficial effects of the present invention are:

The high-pressure water nozzle permeability test device has a reasonable structure and simple operation. The test effect of this device is obvious, and the blockage of the two passages of the high-pressure water nozzle can be accurately judged, so as to carry out effective maintenance and penetration in a targeted manner, and can effectively test Whether the quality of the high-pressure water nozzles after repair and penetration meets the technical requirements has completely and effectively solved the problem of substandard quality after the daily repair of the high-pressure water nozzles.

Description of drawings

FIG. 1 is a schematic structural diagram of a high-pressure water nozzle permeability test device.

Figure 2 is a working state diagram 1 of the high pressure water nozzle permeability test device.

Fig. 3 is a working state diagram 2 of the high-pressure water nozzle permeability test device.

FIG. 4 is a schematic structural diagram of a high-pressure water nozzle.

Figure 5 is a schematic diagram of the structure of the catheter.

In the figure: Conical water nozzle 1, high pressure water nozzle 2, locking hook 3, spring 4, locking ring 5, conduit 6, guide tube 7, base 8, locking wheel 9, locking handle 10, pressure gauge 11 , valve 12, water pipe 13, gap 14, stop 15, stop plate 16.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

See Figures 1-3 and 5, a high-pressure water nozzle permeability test device, including a conical water nozzle 1, a locking mechanism, a base 8, a pressure gauge 11, a valve 12, and a water pipe 13; the water pipe 13 is fixedly connected to the On the base 8, a valve 12 and a pressure gauge 11 are installed on the water pipe 13. One end of the water pipe 13 is fixedly connected with a conical water nozzle 1, and the other end is connected to a pressure water pipe. The high-pressure water nozzle 2 is installed on the conical water nozzle 1 and passes through The locking mechanism is pressed and fixed. The tapered water nozzle 1 is covered with a rubber pad.

The locking mechanism includes a locking hook 3, a spring 4, a locking ring 5, a guide tube 6, a guide tube 7, a locking wheel 9, and a locking handle 10. The spring 4 is sleeved on the guide tube 6, and both ends of the guide tube 6 are fixed with stoppers. Baffle 16, one end of the spring 4 is fixedly connected with the stop plate 16 at the head end of the conduit 6, the other end of the spring 4 is fixedly connected with the locking ring 5, the locking ring 5 is fixedly connected with the locking hook 3, and the locking The ring 5 is slidably connected with the guide tube 6, and the locking ring 5 can slide on the guide tube 6 with the compression of the spring 4; The catheter 6 can pass through the guide tube 7 to do linear reciprocating motion; the locking wheel 9 is fixedly connected to the base 8, the head of the locking handle 10 is a sleeve, the sleeve is sleeved with the catheter 6, and the end of the sleeve abuts On the stop plate 16 at the tail end of the conduit 6, the locking handle 10 can use the conduit 6 as the axis to perform a circular motion with a certain arc. The upper half of the edge of the end of the locking wheel 9 is from short to long in the circumferential direction. The locking handle 10 rotates and moves along the edge of the upper half of the locking wheel 9 to drive the guide tube 6 to reciprocate horizontally.

Both ends of the upper half of the edge of the locking wheel 9 are provided with stoppers 15 and gaps 14 .

1-3, there are two water pipes 13, which are respectively connected with the two passages of the high-pressure water nozzle 2 through the conical water nozzle 1, as shown in FIG. 4 . The high-pressure water nozzle 2 is a nozzle planned for permeability inspection. By adjusting the locking handle 10, the locking hook 3 can hang the side pipeline of the high-pressure water nozzle 2, and connect the two passages of the high-pressure water nozzle 2 with the two channels. The conical water nozzles 1 are respectively pressed and connected together.

See Figure 1-Figure 3, Figure 5, the use of the high-pressure water nozzle permeability test device is as follows:

1. The two valves 12 of the two water pipes 13 are respectively closed, and the two water pipes 13 are respectively connected to the two pressured water pipes;

2. Rotate the locking handle 10 to a loose state, that is, the locking handle 10 is abutted against the short portion of the edge of the end of the locking wheel 9;

3. Fit the tail of the straight passage of the high-pressure water nozzle 2 with a conical water nozzle 1, and fit the tail of the bypass passage of the high-pressure water nozzle 2 with another conical water nozzle 1;

4. Hook the locking hook 3 to the bypass branch pipe of the high-pressure water nozzle 2;

5. Rotate the locking handle 10 to quickly lock the high-pressure water nozzle 2 , that is, the locking handle 10 abuts against the long part of the edge of the end of the locking wheel 9 .

See Figure 1-5, the permeability test method of high pressure water nozzle 2:

1. Open the valve 12 on the water pipe 13 directly connected to the high-pressure water nozzle 2, respectively, and the water pressure in the pipeline impacts the interior of the high-pressure water nozzle 2 to conduct a permeability test. If there is a small amount of impurities inside the high-pressure water nozzle 2, the valve 12 can be opened and closed repeatedly to flush out a small amount of impurities;

2. Same as step 1), operate the valve 12 on the water pipe 13 connected to the bypass passage of the high-pressure water nozzle 2;

3. Open the two valves 12 at the same time, wait for 3 seconds, and after the water pressure is stable, check the spray situation of the high-pressure water nozzle 2. If the spray spray of the high-pressure water nozzle 2 is fan-shaped, the permeability test of the high-pressure water nozzle 2 is qualified; if the spray spray is in other shapes, the permeability test of the high-pressure water nozzle 2 is unqualified, and the high-pressure water spray nozzle 2 needs to be disassembled. , carry out maintenance and penetration, and re-permeability test until the penetration test is qualified;

4. Close the two valves 12, rotate the locking handle 10 to the loose state, and remove the high-pressure water nozzle 2.

Claims (7)

1. a high-pressure water nozzle permeability testing device, is characterized in that, comprises conical water nozzle, locking mechanism, base, pressure gauge, valve, water pipe; One end of the water pipe is fixedly connected with a conical water nozzle, and the high-pressure water nozzle is pressed and fixed on the conical water nozzle by a locking mechanism. 2. A high-pressure water nozzle permeability testing device according to claim 1, wherein the locking mechanism comprises a locking hook, a spring, a locking ring, a conduit, a locking wheel, and a locking handle , the spring is sleeved on the catheter, the first and last ends of the catheter are fixed with stop plates, one end of the spring is fixedly connected with the stop plate at the first end of the catheter, the other end of the spring is fixedly connected with the locking ring, the locking ring and the locking ring are fixedly connected together. The hook is fixedly connected, the locking ring is slidably connected with the catheter, the locking ring can slide on the catheter with the compression of the spring; the catheter can reciprocate linearly through the base; the locking wheel is fixedly connected to the base, and the locking handle The head is a sleeve, the sleeve is sleeved with the catheter, and the end abuts on the stop plate at the tail end of the catheter, and the upper half of the edge of the end of the locking wheel is from short to long in the circumferential direction. 3 . The device for testing the permeability of high-pressure water nozzles according to claim 2 , wherein, stoppers are provided at both ends of the upper half of the end edge of the locking wheel. 4 . 4 . The device for testing the permeability of high-pressure water nozzles according to claim 2 , wherein the two ends of the upper half of the end edge of the locking wheel are provided with notches. 5 . 5 . The device for testing the permeability of a high-pressure water nozzle according to claim 1 , wherein a rubber pad is sleeved on the conical water nozzle. 6 . 6 . The device for testing the permeability of a high-pressure water nozzle according to claim 1 , wherein the number of said water pipes is two. 7 . 7. A high-pressure water nozzle permeability testing device according to claim 1, further comprising a guide tube, the guide tube is a hollow tube, the guide tube is fixedly connected to the base, and the guide tube is sleeved in the guide tube, The catheter is capable of linear reciprocating motion through the guide tube.

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