CN215467091U

CN215467091U - Device for ensuring stable water outlet of ultra-fast cooling upper header

Info

Publication number: CN215467091U
Application number: CN202120250170.0U
Authority: CN
Inventors: 周孝廉; 宋斌
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-01-11
Anticipated expiration: 2031-01-29

Abstract

The utility model relates to a device for ensuring the stable water outlet of an ultra-fast cooling upper collecting pipe, which comprises an upper collecting pipe, upper collecting pipe water inlet pipes, a connecting flange, a blow-off pipe and a blow-off valve, wherein the upper end surface of the upper collecting pipe is provided with a plurality of upper collecting pipe water inlet pipes, the lower end of the upper collecting pipe is provided with a nozzle, two ends of the middle part of the upper collecting pipe are respectively provided with a fast blow-off valve, two ends of the bottom of the upper collecting pipe are respectively provided with a blow-off pipe, one end of the blow-off pipe extends into the upper collecting pipe and is communicated with the upper collecting pipe, and the other end of the blow-off pipe is connected with the blow-off valve through the connecting flange; the device simple structure is compact, can regularly carry out blowdown to the collector and handle, in time discharges the interior impurity of collector, guarantees the homogeneity of upper header play water to improve the quality and the stability of steel sheet product.

Description

Device for ensuring stable water outlet of ultra-fast cooling upper header

Technical Field

The utility model relates to a device for ensuring the stable water outlet of an upper header in ultra-fast cooling.

Background

The ultra-fast cooling of a wide and thick plate factory is a cooling system for rolled steel plates, and the condition of the ultra-fast cooling equipment directly influences the performance of the steel plates and the flatness and surface quality of the steel plates. Cooling water in the ultra-fast cooling system flows down to a pipeline filter through a high-level water tank, reaches a collecting pipe through water treatment, is sprayed to the surface of a steel plate through a collecting pipe nozzle, the temperature for cooling the steel plate is achieved by adjusting the speed, the water ratio, the water flow and the pressure of a roller way, the uniformity of the water discharged from the ultra-fast cooling collecting pipe directly influences the surface quality of the steel plate, the performance of the steel plate and the flatness of the steel plate, and the direct influence is exerted on the smooth delivery of a contract of the steel plate.

The ultra-fast cooling of the wide and thick plate plant consists of 24 groups of upper collecting pipes and 24 groups of lower collecting pipes, wherein 2 groups of gap collecting pipes are arranged at the upper part and the lower part, the rest are high-density pipes, the diameter of a nozzle of each high-density pipe is 4mm, and each group of high-density collecting pipes is provided with 618 nozzles.

In the production process, due to the influence of water quality and high-temperature baking of the steel plate, scale and oxidizing slag residues are easily generated in the ultra-fast cooling upper header, and impurities are not timely discharged after being peeled off and easily block a header nozzle, so that the uniformity of water outlet of the header is influenced, and the quality of the steel plate cannot be guaranteed.

Every overhaul all consumes a large amount of manpower and materials and examines the clearance mediation to ultrafast cooling upper header nozzle, and the effect is unsatisfactory, runs into to block up serious and clear away need demolish the stability of collecting pipe line pickling under with the assurance collector play water, changes a collector and often needs 6 hours, and the operation degree of difficulty is big, and current collector pickling cycle is 2 years/time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a device for ensuring the stable water outlet of an ultra-fast cooling upper collecting pipe, which has a simple and compact structure, can regularly carry out pollution discharge treatment on the collecting pipe, timely discharge impurities in the collecting pipe and ensure the uniformity of the water outlet of the upper collecting pipe, thereby improving the quality and stability of a steel plate product.

In order to solve the technical problems, the utility model provides a device for ensuring the stable water outlet of an ultra-fast cooling upper collecting pipe, which comprises the upper collecting pipe, upper collecting pipe water inlet pipes, a connecting flange, a blow-off pipe and a blow-off valve, wherein the upper end surface of the upper collecting pipe is provided with a plurality of upper collecting pipe water inlet pipes, the lower end of the upper collecting pipe is provided with a nozzle, two ends of the middle part of the upper collecting pipe are respectively provided with a fast blow-off valve, two ends of the bottom of the upper collecting pipe are respectively provided with a blow-off pipe, one end of the blow-off pipe extends into the upper collecting pipe and is communicated with the upper collecting pipe, and the other end of the blow-off pipe is connected with the blow-off valve through the connecting flange.

The technical scheme of the utility model is further defined as follows:

furthermore, in the device for ensuring the stable water outlet of the ultra-fast cooling upper header, at least 6 upper header water inlet pipes are arranged.

In the device for ensuring the stable water outlet of the ultra-fast cooling upper collecting pipe, the upper collecting pipe water inlet pipe is provided with the connecting flange.

In the device for ensuring the stable water outlet of the ultra-fast cooling upper collecting pipe, the water inlet pipe of the upper collecting pipe is a metal hose.

In the device for ensuring the stable water outlet of the ultra-fast cooling upper collecting pipe, the two sides of the bottom end of the upper collecting pipe are respectively provided with two independent sewage discharge pipes which are arranged in parallel.

The technical effect is that each side of the bottom end of the upper header is provided with two independent sewage discharge pipes, so that the sewage discharge speed and efficiency are improved.

The utility model has the beneficial effects that:

the utility model supplies water to the upper collecting pipe from the middle water inlet pipe and flows out from the nozzle to cool the steel plate according to the characteristics of the ultra-fast cooling upper collecting pipe, one end of the upper collecting pipe in the prior art is provided with a fast discharge valve, the valve is closed when water exists in the upper collecting pipe, the fast discharge valve is opened to discharge the residual water in the upper collecting pipe fast after the water supply of the upper collecting pipe is stopped, the other end of the upper collecting pipe is provided with a blind plate, the blind plate is removed during multiple times of maintenance, so that a large amount of oxidation slag and other impurities are left at the blind plate end, the existing ultra-fast cooling upper collecting pipe is improved, the blind plate is banned, the two ends of the bottom of the upper collecting pipe are respectively provided with a blow-off pipe, the blow-off pipe is connected with a blow-off valve through a connecting method, the blow-off is directly discharged through the blow-off valve, instead of dismantling and discharging the blind plate, the device does not need to be stopped to clean the upper collecting pipe for a long time, and meanwhile, the device saves the work of frequent offline pickling of the collecting pipe and ensures the stability of ultrafast cooling water outlet.

The connecting flanges are arranged on the upper header water inlet pipe and the drain pipe, so that the external pipe can be conveniently extended according to the requirement, the drain pipe can be connected with a longer pipeline according to the field requirement for external discharge, the operation is convenient, and the applicability is enhanced.

The utility model adds a drain valve to the ultra-fast cooling upper collecting pipe, carries out drain treatment on the collecting pipe at regular intervals, discharges impurities in the collecting pipe in time, and ensures the uniformity of water outlet of the upper collecting pipe, thereby improving the quality and stability of steel plate products, and realizing the effects of high operation efficiency, controllable product quality and controllable overhaul quality.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

in the figure: 1-upper collecting pipe, 2-upper collecting pipe water inlet pipe, 3-connecting flange, 4-blow-off pipe, 5-blow-off valve and 6-quick blow-off valve.

Detailed Description

Example 1

The utility model provides a ensure that super fast cold goes up stable device of header play water, the structure is as shown in figure 1, including last header 1, go up header inlet tube 2, flange 3, blow off pipe 4 and blowoff valve 5, the upper end surface of going up header 1 is equipped with header inlet tube 2 on the several, the lower extreme of going up header 1 is equipped with the nozzle, the both ends at last header 1 middle part have fast valve 6 that lets out through the tube coupling respectively, the both ends of going up header 1 bottom are equipped with blow off pipe 4 respectively, 4 one end of blow off pipe stretch into header 1 and last header 1 intercommunication, the other end is connected with blowoff valve 5 through flange 3.

In this embodiment, at least 6 upper header inlet pipes 2 are provided.

In this embodiment, the upper header inlet pipe 2 is provided with a connecting flange 3.

In this embodiment, the upper header inlet pipe 2 is a metal hose.

In this embodiment, the two sides of the bottom end of the upper header 1 are respectively provided with two independent sewage pipes 4 which are arranged in parallel.

When the device for ensuring the water outlet stability of the ultra-fast cooling upper collecting pipe is used, the control logic of the quick-release valve on the upper collecting pipe is modified into the water boiling state, the quick-release valve is opened, the logic modification is only used in abnormal production (namely when the device is not used), in normal production, the quick-release valve is closed in the water boiling state of the collecting pipe, in abnormal production, the quick-release valve is opened in the water boiling state of the collecting pipe, impurities can be flushed out of the quick-release valve by utilizing the water with pressure in the collecting pipe, at the moment, the upper collecting pipe is opened, the impurities in the collecting pipe are quickly discharged through the quick-release valve and the device for ensuring the water outlet stability of the ultra-fast cooling upper collecting pipe, the blockage of a nozzle of the upper collecting pipe is reduced, and the uniformity of the water outlet of the upper collecting pipe is ensured.

Compared with the prior art that the expected effect is achieved by removing the blind plate for pollution discharge on site, the utility model can realize the periodic pollution discharge treatment on the collecting pipe, discharge impurities in the collecting pipe in time, and ensure the uniformity of water outlet of the upper collecting pipe, thereby improving the quality and stability of steel plate products, and simultaneously achieving the effects of high operation efficiency, controllable product quality and controllable maintenance quality.

The utility model discloses an implement the back of using, the ultrafast is cold to go up header nozzle jam rate greatly reduced, goes out water evenly, according to the current header condition of going up, and the header pickling cycle shortens to once 4 years.

The value of creation:

the cost of pickling for the blockage of the nozzle of the original collecting pipe is 15000 per unit, 22 upper collecting pipes are used,

annual benefit = 15000/piece × 22 pieces × (1/2-1/4) yuan =8.25 ten thousand yuan;

in addition, the guarantee of the surface quality of the steel plate and the value of improving the image of the south steel plate cannot be measured.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a guarantee stable device of header play water on ultrafast cooling which characterized in that: including last header (1), go up header inlet tube (2), flange (3), blow off pipe (4) and blowoff valve (5), the upper end surface of going up header (1) is equipped with header inlet tube (2) on the several, the lower extreme of going up header (1) is equipped with the nozzle, the both ends of going up header (1) middle part are equipped with fast valve (6) of letting out respectively, the both ends of going up header (1) bottom are equipped with respectively blow off pipe (4), blow off pipe (4) one end stretches into go up header (1) and last header (1) intercommunication, the other end passes through flange (3) are connected with blowoff valve (5).

2. The apparatus of claim 1 for ensuring stable outlet water from an ultra-fast cold upper header, wherein: the number of the upper header water inlet pipes (2) is at least 6.

3. The apparatus of claim 2, wherein the means for ensuring the stability of the outlet water from the super-rapid cooling upper header comprises: and a connecting flange (3) is arranged on the upper header water inlet pipe (2).

4. The apparatus of claim 1 for ensuring stable outlet water from an ultra-fast cold upper header, wherein: the upper header water inlet pipe (2) is a metal hose.

5. The apparatus of claim 1 for ensuring stable outlet water from an ultra-fast cold upper header, wherein: the two sides of the bottom end of the upper collecting pipe (1) are respectively provided with two independent sewage pipes (4) which are arranged in parallel.