CN217634109U

CN217634109U - Large-diameter temperature-reducing water regulating valve

Info

Publication number: CN217634109U
Application number: CN202221446003.4U
Authority: CN
Inventors: 苗蕴博
Original assignee: Shandong Bo'ao Power Equipment Co ltd
Current assignee: Shandong Bo'ao Power Equipment Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-10-21
Anticipated expiration: 2032-06-10

Abstract

The utility model provides a heavy-calibre desuperheating water governing valve, including the valve body, the both sides of valve body are the income water side respectively and go out the water side, install self-cleaning nature filter equipment in the income water side of valve body. This application has replaced the setting of current peripheral hardware filter through more simple, small and exquisite structure, can realize the filtration to the water equally. In addition, the structure arrangement of the filter screen automatic cleaning device enables the filter screen to be self-cleaned only through the position adjustment of the upper baffle and the lower baffle, avoids the process of disassembling, cleaning and replacing the filter screen, is more convenient to use, and is convenient to market application and popularization.

Description

Large-diameter temperature-reducing water regulating valve

Technical Field

The utility model relates to the technical field of valves, specifically a heavy-calibre desuperheating water governing valve.

Background

The temperature-reducing water regulating valve is used for reducing the temperature of water and steam with higher temperature generated by the operation fluctuation of a boiler or a steam turbine. In order to achieve faster cooling and increase the amount of temperature-reduced water in a short time, a temperature-reduced water control valve having a large diameter is often used. However, the flux of the desuperheating water is increased to bring more impurities in water, and after the desuperheating water regulating valve with a large caliber works for a long time, a large amount of impurities are accumulated inside the desuperheating water regulating valve to directly influence the normal use of the valve. Thus requiring pre-treatment of the water entering the valve body.

However, the existing pretreatment or filtration means adopts an external filter, so that the cost is increased, and the filter has larger volume and is inconvenient to clean the filter screen of the filter, so that the filter is difficult to popularize and use in reality.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a large-caliber temperature-reducing water regulating valve, and aims to solve the problem that an existing drain valve is not corrosion-resistant.

The embodiment of the application provides a large-caliber temperature-reducing water regulating valve which comprises a valve body, wherein the two sides of the valve body are respectively a water inlet side and a water outlet side, and a self-cleaning filtering device is arranged on the water inlet side of the valve body; the self-cleaning filtration device includes a housing; a through flow cavity is arranged in the shell, and a filter screen is intercepted in the middle of the flow cavity; a sewage outlet is arranged on the shell at the water inlet side of the filter screen, and an upper baffle is rotatably connected at the sewage outlet; a backwater channel is arranged on the shell opposite to the sewage outlet, the inlet of the backwater channel is positioned on the water inlet side of the filter screen, and the outlet of the backwater channel is positioned on the water outlet side of the filter screen; a lower baffle is rotationally connected in the inlet of the water return channel; the upper baffle and the lower baffle rotate towards the flow cavity, and the upper baffle is connected with the lower baffle to form the cutoff of the flow cavity; the sewage outlet is positioned between the cut-off part and the filter screen; the inlet of the water return channel is positioned at the cut-off water inlet side.

Furthermore, the rotating shaft of the upper baffle is positioned on the water inlet side of the sewage outlet, the sewage outlet is closed by the counterclockwise rotation of the upper baffle, and the upper baffle rotates clockwise to suspend in the flow cavity to form cutoff.

Furthermore, the rotating shaft of the lower baffle is positioned on the water outlet side of the inlet of the water return channel, the lower baffle rotates anticlockwise to close the inlet of the water return channel, and the lower baffle rotates clockwise to suspend in the flow cavity to form cutoff.

Furthermore, the water inlet side of the self-cleaning filtering device is respectively connected with the temperature reduction water pipe and the cleaning water pipe through a tee joint.

Further, the self-cleaning filtering device is fixed with the water inlet of the valve body through a flange.

Further, the self-cleaning filtering device is fixed with the water inlet of the valve body by screw engagement.

Furthermore, an outlet baffle is arranged at the outlet of the water return channel, a rotating shaft of the outlet baffle is positioned at the water outlet side of the outlet of the water return channel, the outlet baffle rotates clockwise to close the outlet of the water return channel, and the outlet baffle rotates anticlockwise to be attached to the side wall of the water return channel to open the outlet of the water return channel.

The utility model has the advantages that: this application has replaced the setting of current peripheral hardware filter through more simple, small and exquisite structure, can realize the filtration to the water equally. In addition, the filter screen is self-cleaning only by adjusting the positions of the upper baffle and the lower baffle through the structure, the process of disassembling, cleaning and replacing the filter screen is avoided, the use is more convenient, and the market application and popularization are facilitated.

Drawings

Fig. 1 is a schematic structural view of a large-diameter water-reducing regulating valve in a use state.

Fig. 2 is a schematic structural diagram of the large-caliber temperature-reducing water regulating valve in a clean state.

In the figure: 1. a valve body; 2. a housing; 3. a flow chamber; 4. a filter screen; 5. a sewage outlet; 6. an upper baffle plate; 7. a water return channel; 8. a lower baffle plate; 71. an inlet of the water return channel; 72. and an outlet of the water return channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a heavy-calibre desuperheating water governing valve, includes valve body 1, and the both sides of valve body are the side of entrying and go out the water side respectively, installs self-cleaning filter equipment through flange or thread engagement's mode in the side of entrying of valve body, makes self-cleaning filter equipment be detachable structure, is convenient for after the dismantlement get off change and the maintenance to the filter screen.

The self-cleaning filter device comprises a housing 2; the shell is internally provided with a flow cavity 3 with a water inlet side communicated with a water outlet side, and the flow cavity is directly communicated with a water inlet of the valve body. The self-cleaning filtering device has the function of filtering the desuperheating water entering the valve body, and the risk of blockage of the valve body is reduced.

A filter screen 4 is arranged in the middle of the flow cavity in an intercepting manner; a sewage outlet 5 is arranged on the shell at the water inlet side of the filter screen, and an upper baffle 6 is rotatably connected at the sewage outlet; a water return channel 7 is arranged on the shell opposite to the sewage outlet, the inlet 71 of the water return channel is positioned on the water inlet side of the filter screen, and the outlet 72 of the water return channel is positioned on the water outlet side of the filter screen; the inlet 71 of the water return channel is internally and rotatably connected with a lower baffle plate 8; the upper baffle and the lower baffle rotate towards the flow cavity, and the upper baffle is connected with the lower baffle to form the cutoff of the flow cavity; the sewage outlet 5 is positioned between the cut-off part and the filter screen; the return channel inlet 71 is located at the cut-off inlet side.

The pivot of overhead gage 6 is located the income water side of sewage outlet 5, and the overhead gage anticlockwise rotation closes sewage outlet 5, and the overhead gage clockwise rotation hangs and forms to cut in the flow chamber.

The rotating shaft of the lower baffle 8 is positioned at the water outlet side of the water return channel inlet 71, the lower baffle rotates anticlockwise to close the water return channel inlet, and the lower baffle rotates clockwise to be suspended in the flow cavity to form cutoff.

The application method comprises the following steps:

as shown in fig. 1, in the normal use state of the present application, the temperature-reduced water first enters the flow cavity of the self-cleaning filtering device from the water inlet side, passes through the flow cavity, passes through the filter screen and flows into the valve body. In the process, the temperature-reducing water must pass through the filter screen before entering the valve body, so that the water quality is filtered.

Under this state, go up baffle 6 anticlockwise rotation and close sewage outlet 5, lower baffle 8 anticlockwise rotation closes return water passageway entry 71, and the temperature reduction water is not influenced by sewage outlet and return water passageway this moment, only can advance to filter screen and valve body.

When the valve body is not used and the self-cleaning function of the application needs to be started, the application is shown in figure 2. The upper baffle 6 rotates clockwise to be suspended in the middle of the flowing cavity, the lower baffle 8 rotates clockwise to be suspended in the middle of the flowing cavity, the lower baffle is connected with the upper baffle to form cutoff in the flowing cavity, and a sewage outlet and a water return channel are also opened.

Clean water is introduced into the device through the three channels, the clean water can only enter the water return channel under the action of truncation after entering the device, enters the water return channel from the water return channel inlet 71 and then enters the flow cavity from the water return channel outlet 72, and the clean water can only reversely pass through the filter screen 4 due to the closing of the valve and flows out of the device from the sewage outlet 5 under the action of truncation. Therefore, the impurities piled on the water inlet side surface of the filter screen can be taken away by the cleaning water, and the cleaning effect on the filter screen is achieved.

In order to prevent impurities from being accumulated on the water outlet side of the filter screen due to the use of the temperature-reducing water in the cleaning process, the water inlet side of the self-cleaning filtering device is respectively connected with the temperature-reducing water pipe and the cleaning water pipe through a tee joint, so that the filter screen is prevented from being secondarily blocked by injecting cleaner cleaning water.

In addition, in one embodiment, an outlet baffle may be further disposed at the outlet 72 of the water return channel, a rotating shaft of the outlet baffle is located at the water outlet side of the outlet 72 of the water return channel, the outlet baffle rotates clockwise to close the outlet of the water return channel, and the outlet baffle rotates counterclockwise to attach to the side wall of the water return channel to open the outlet of the water return channel.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A large-diameter desuperheating water regulating valve comprises a valve body (1), wherein the two sides of the valve body are respectively a water inlet side and a water outlet side, and the large-diameter desuperheating water regulating valve is characterized in that a self-cleaning filtering device is arranged on the water inlet side of the valve body; the self-cleaning filter device comprises a housing (2); a through flow cavity (3) is arranged in the shell, and a filter screen (4) is intercepted in the middle of the flow cavity; a sewage outlet (5) is arranged on the shell at the water inlet side of the filter screen, and an upper baffle (6) is rotationally connected to the sewage outlet; a water return channel (7) is arranged on the shell opposite to the sewage outlet, an inlet (71) of the water return channel is positioned on the water inlet side of the filter screen, and an outlet (72) of the water return channel is positioned on the water outlet side of the filter screen; the inlet (71) of the water return channel is internally and rotatably connected with a lower baffle (8); the upper baffle and the lower baffle rotate towards the flow cavity, and the upper baffle is connected with the lower baffle to form the cutoff of the flow cavity; the sewage outlet (5) is positioned between the cut-off part and the filter screen; the return channel inlet (71) is located on the cut-off water inlet side.

2. A large-bore temperature-reducing water regulating valve according to claim 1, characterized in that the rotating shaft of the upper baffle (6) is located at the water inlet side of the sewage outlet (5), the sewage outlet (5) is closed by the upper baffle rotating anticlockwise, and the upper baffle rotating clockwise forms a cut-off in the flow chamber.

3. A large-bore temperature-reducing water regulating valve according to claim 2, characterized in that the rotating shaft of the lower baffle (8) is positioned at the water outlet side of the return water channel inlet (71), the return water channel inlet is closed by the counterclockwise rotation of the lower baffle, and the clockwise rotation of the lower baffle forms a cut-off in the flow cavity.

4. The large-caliber temperature-reducing water regulating valve according to claim 3, wherein the water inlet side of the self-cleaning filtering device is respectively connected with the temperature-reducing water pipe and the cleaning water pipe through a tee joint.

5. A large-diameter water reducing regulating valve according to claim 1, wherein the self-cleaning filtering device is fixed with the water inlet of the valve body through a flange.

6. A large-diameter water reducing temperature regulating valve according to claim 1, wherein the self-cleaning filter means is fixed to the water inlet of the valve body by screw engagement.

7. The large-caliber desuperheating water regulating valve according to claim 4, wherein the outlet (72) of the water return channel is provided with an outlet baffle, a rotating shaft of the outlet baffle is positioned on the water outlet side of the outlet (72) of the water return channel, the outlet baffle rotates clockwise to close the outlet of the water return channel, and the outlet baffle rotates counterclockwise to be attached to the side wall of the water return channel to open the outlet of the water return channel.