CN211951449U

CN211951449U - Electric control pressure regulating type hydraulic valve

Info

Publication number: CN211951449U
Application number: CN202020267672.XU
Authority: CN
Inventors: 郭金忠; 王灿; 赵键波
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-17
Anticipated expiration: 2030-03-06

Abstract

The utility model provides an automatically controlled pressure regulating formula water conservancy valve, establish the valve body of valve gap including the top, locate in the valve body, valve pocket and division board down, upward be equipped with the case hanging wall in the valve pocket, be equipped with the case lower wall that the sealing washer is established to the bottom in the valve pocket down, case hanging wall and case lower wall pass through connecting rod interconnect, and the case lower wall connects with the water inlet of locating down in the valve pocket mutually, be equipped with reset spring between case lower wall and the division board, its characterized in that valve body side of intaking is established the filter with it on, the delivery pipe one end of stop valve links to each other, the delivery pipe other end passes inlet opening and last valve pocket intercommunication on the valve gap, valve body drainage side links to each other with the drain pipe one end of establishing electric ball valve on it, the. The water pressure in the upper valve cavity can be controlled according to the requirement, so that the opening degree of the valve core is controlled, the dynamic pressure regulation of the valve is realized, the water supply pressure is constant, the sufficient water supply amount is ensured, and the good water quality is ensured.

Description

Electric control pressure regulating type hydraulic valve

Technical Field

The utility model relates to a water conservancy valve, especially an automatically controlled pressure regulating formula water conservancy valve belongs to valve manufacturing and designing technical field.

Background

The hydraulic power plant generally adopts the water conservancy valve to control the cooling water supply of each cooler, and in the use, because the aquatic contains more silt, the isolating valve case that the water conservancy valve used and the sealed face of valve seat receive the influence easily and take place internal leakage. The normal operation of the valve can be influenced, and the sediment erodes the hydraulic valve part for a long time, so that the damage is easily caused, and the problems that the main valve is not tightly opened or closed, the maintenance workload is large, the reliability of the equipment is reduced and the like are caused. In addition, due to structural reasons, the existing hydraulic valve also has the condition that the water supply pressure is unstable frequently in the use process. There is therefore a need for improvements in the prior art.

Disclosure of Invention

Parts such as isolation valve that use for solving current water conservancy valve receive the influence of silt in the water for a long time, appear sealed not tight, part damage to and the unstable problem of water conservancy valve water supply pressure, the utility model provides an automatically controlled pressure regulating formula water conservancy valve.

The utility model discloses a following technical scheme accomplishes: an electrically controlled pressure-regulating hydraulic valve comprises a valve body with a valve cover at the top, an upper valve cavity, a lower valve cavity and a partition plate, wherein the upper valve cavity is internally provided with a valve core upper disc, the lower valve cavity is internally provided with a valve core lower disc with a sealing ring at the bottom, the valve core upper disc and the valve core lower disc are connected with each other through a connecting rod, the valve core lower disc is matched and connected with a water inlet arranged in the lower valve cavity, and a reset spring is arranged between the valve core lower disc and the partition plate. Thereby increasing the opening of the valve core and realizing the dynamic pressure regulation of the valve.

The input end of the water supply pipe is communicated with the water inlet side of the valve body, the output end of the water supply pipe penetrates through a water inlet hole in the valve cover to be communicated with the upper valve cavity, the middle part of the water supply pipe is connected with two filtering branch pipes which are provided with filters in parallel through a three-way switching valve, a pressure gauge and a stop valve are arranged on the upper part of the water supply pipe, so that one or two filters can be opened as required to filter silt in water, and the problem that parts.

The input end of the drainage pipe penetrates through the drainage hole in the valve cover to be communicated with the upper valve cavity, the output end of the drainage pipe is communicated with the water outlet side of the valve body, and the middle part of the drainage pipe is provided with an electric ball valve, a pressure reducing valve, a pressure gauge and a manual ball valve, so that the water pressure in the upper valve cavity is controlled through the electric ball valve, and the overhigh pressure in a drainage pipeline is avoided through the pressure.

The utility model has the advantages of it is following and effect: by adopting the scheme, the water pressure in the upper valve cavity can be conveniently controlled through the water supply pipe, the water discharge pipe and the valve on the water supply pipe and the water discharge pipe as required, so that the opening degree of the valve core is controlled, the dynamic pressure regulation of the valve is realized, the constant water supply pressure is ensured, and the coolers are well protected. Simultaneously, filter the aquatic silt through a plurality of filters, guarantee that the water supply is sufficient, quality of water is good, avoid causing the problem of part seal failure and part damage because of silt. The valve is an ideal hydraulic valve.

Drawings

Fig. 1 is a cross-sectional structural view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides an automatically controlled pressure regulating formula water conservancy valve, establish valve body 1 of valve gap 12 including the top, locate upper and lower valve pocket 13 in the

valve body

1, 16 and division board 2, upward be equipped with case hanging wall 5 in the valve pocket 13, be equipped with the case lower wall 4 that the sealing washer was established to the bottom in the lower valve pocket 16, case hanging wall 5 and case lower wall 4 pass through connecting rod 14 interconnect to case lower wall 4 connects with the water inlet of locating down in the valve pocket 16 mutually, is equipped with reset spring between case lower wall 4 and the division board 2, wherein: the water inlet side 3 of the valve body 1 is connected with one end of a water supply pipe 21 provided with a filter 19 and a stop valve 15, the other end of the water supply pipe 21 penetrates through a water inlet hole in the valve cover 12 to be communicated with the upper valve cavity 13, the water discharging side 6 of the valve body 1 is connected with one end of a water discharging pipe 7 provided with an electric ball valve 11, the other end of the water discharging pipe 7 penetrates through a water discharging hole in the valve cover 12 to be communicated with the upper valve cavity 13, so that water is taken from the water inlet side 3 to the upper valve cavity 13 through the water inlet pipe 21 to increase pressure as required, the opening degree of the valve core 4 is reduced, or water in the upper valve cavity 13 is discharged to the water discharging side 6.

The input end of the water supply pipe 21 is communicated with the water inlet side 3 of the valve body 1, the output end of the water supply pipe passes through a water inlet hole in the valve cover 12 and is communicated with the upper valve cavity 13, the middle part of the water supply pipe is connected with two filtering branch pipes 18 which are provided with filters 19 in parallel through a three-way switching valve 20, a pressure gauge 17 and a stop valve 15 are arranged at the upper part of the water supply pipe 21, so that one or two filters 19 can be opened as required to filter silt in water, and the problem of damage.

The input end of the drain pipe 7 passes through a drain hole on the valve cover 12 to be communicated with the upper valve cavity 13, the output end of the drain pipe is communicated with the water outlet side 6 of the valve body 1, and the middle part of the drain pipe is provided with an electric ball valve 11, a pressure reducing valve 10, a pressure gauge 9 and a manual ball valve 8, so that the water pressure in the upper valve cavity 13 is controlled through the electric ball valve 11, and the overhigh pressure in a drain pipeline is avoided through the pressure reducing.

Claims

1. An electric control pressure regulating type hydraulic valve comprises a valve body, an upper valve cavity, a lower valve cavity and a partition plate, wherein the top of the valve body is provided with a valve cover, the upper valve cavity, the lower valve cavity and the partition plate are arranged in the valve body, a valve core upper disc is arranged in the upper valve cavity, a valve core lower disc is arranged in the lower valve cavity, the bottom of the valve core upper disc and the valve core lower disc are connected with each other through a connecting rod, the valve core lower disc is matched and connected with a water inlet in the lower valve cavity, a reset spring is arranged between the valve core lower disc and the partition plate, and the electric control pressure regulating type hydraulic valve is characterized in that the water inlet side of the valve body is connected with one end of a water supply pipe, provided with a filter and a stop valve.

2. An electrically controlled pressure-regulating hydraulic valve as claimed in claim 1, wherein the input end of the water supply pipe is connected to the water inlet side of the valve body, the output end of the water supply pipe passes through the water inlet hole of the valve cover and is connected to the upper valve chamber, the middle part of the water supply pipe is connected in parallel to two branch filter pipes with filters thereon through a three-way switching valve, and the upper part of the water supply pipe is provided with a pressure gauge and a.

3. The electric control pressure regulating hydraulic valve according to claim 1, wherein the input end of the drain pipe passes through the drain hole on the valve cover to be communicated with the upper valve cavity, the output end of the drain pipe is communicated with the water outlet side of the valve body, and the middle part of the drain pipe is provided with an electric ball valve, a pressure reducing valve, a pressure gauge and a manual ball valve.