CN218492613U

CN218492613U - Composite double-port negative pressure suppressor

Info

Publication number: CN218492613U
Application number: CN202020660689.1U
Authority: CN
Inventors: 洪光; 查荣宇; 查荣荣; 于祥岩; 查恩玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2023-02-17
Anticipated expiration: 2030-04-27

Abstract

A composite double-port negative pressure suppressor comprises a main valve body, an overflowing support frame, a main valve port sealing ring, a guide sleeve rod anti-splashing buffer cushion, a guide rod, a flange and a floating ball which are connected. The air pressure inside and outside the flow stabilizing tank is balanced, and the negative pressure inhibiting effect is achieved.

Description

Composite double-port negative pressure suppressor

Technical Field

The utility model relates to a part among the water supply system, in particular to compound two mouthful negative pressure inhibitor.

Background

The negative pressure suppressor is used in water conveying and distributing pipe network and secondary booster pump station water supply system, because the water conveying and distributing pipe network generally contains about 2VOL% dissolved air in water, in the course of water conveying, these air are released continuously in water, some gas forms air mass and accumulates in the highest point or local high point of system, such as pipeline corner, steady flow tank and container top, the gas runs with the water in pipe network system in the form of free bubble, form gasbag or air lock, influence the running efficiency of water conveying and distributing pipe network system. In addition, the existing negative pressure suppressors mostly adopt a single-port sealing mode, and can not effectively discharge free air mass generated in the operation of a system, thereby seriously influencing the water supply quality.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned current problem that exists, provide a can effectual exhaust system in service free air mass, eliminate the compound two port negative pressure inhibitor of negative pressure.

The utility model discloses a realize like this: the main valve body is internally welded with a partition plate connector, an inner hole of the partition plate connector is provided with an overflowing supporting frame through threads, the overflowing supporting frame is provided with an overflowing hole, the partition plate connector and the end part of the overflowing supporting frame are provided with a main valve port sealing ring, an inner hole of the overflowing supporting frame is provided with a guide sleeve, a guide sleeve rod is arranged in the inner hole of the guide sleeve, the lower end of the guide sleeve rod is connected with a main valve flap and forms a sealing pair with the main valve port sealing ring, the guide sleeve is sleeved with an anti-splashing buffer cushion and a protective baffle plate, the end part of the inner hole of the guide sleeve rod is provided with a micro exhaust port, a micro hole sealing ring and a guide rod are arranged in the inner hole of the guide sleeve rod, the micro hole sealing ring and a guide rod conical head of the guide rod form a micro hole sealing pair, and the lower end of the guide rod is connected with a floating ball through threads and is fastened through a locking nut. The middle part of the guide rod is provided with a limiting stop ring, the cover body is welded with the outer wall of the main valve body through a connecting plate, an air inlet and outlet channel is arranged on the connecting plate, a flange is welded with the main valve body, an overflow plate is installed in an inner hole of the flange, flange overflow holes are evenly distributed in the flange overflow plate, and a sealing ring is installed on the end opening of the flange and the flange overflow plate.

The utility model has the advantages that, install on the water supply equipment stationary flow compensation jar of water delivery and distribution secondary booster pump station, be used for getting rid of jar internal gas, when the water was just filled to secondary booster pump station to the raceway of running water, because of floater 19 is the state of falling, main valve lamella 17 and with main valve mouth sealing washer 6 formation sealing pair be the full-open state, from flange discharge orifice 22, disk seat discharge orifice 16, prevent splash blotter 8, intake and exhaust passage 2, the air in time discharges. The water level in the tap water delivery pipeline and the steady flow compensation tank rises, the water column water pressure is full, the water pump can normally start working, but a small amount of collected and stored free gas clusters can be generated in the water delivery process, the collected and stored free gas runs into the steady flow compensation tank, the valve clack 17 is in a closed state under the action of the water pressure at the moment, the water level continuously drops along with the increase of the gas, the floating ball 19 and the guide rod 15 drop along with the free gas, and the free gas is timely discharged through a gap between the guide rod 15 and an inner hole of the guide sleeve rod 13, the micro exhaust port 10 and the air inlet and exhaust channel 2 at the moment, so that the hazard of the free gas clusters is eliminated, and the stability of water flow and the safety of water supply are ensured.

On the contrary, when the water supply pipeline is stopped and overhauled or the water consumption flow is larger than the water supply flow during the water consumption peak, the water level in the steady flow tank is reduced, the floating ball 19 is reduced, the main valve flap 17 and the main valve opening sealing ring 6 form a sealing pair in a full-open state, and the outside air enters the steady flow compensation tank through the air inlet and outlet channel 2, the anti-splashing buffer cushion 8, the valve seat overflowing hole 16 and the flange overflowing hole 22, so that the air pressure inside and outside the steady flow tank is balanced, and the negative pressure inhibiting effect is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following detailed description is made with reference to the accompanying drawings: as shown in the figure, a partition connector 5 is welded in a main valve body 3, an overflow support frame 7 is installed in an inner hole of the partition connector 5 through threads, an overflow hole 16 is formed in the overflow support frame 7, a main valve port sealing ring 6 is installed at the end portion of the partition connector 5 and the overflow support frame 7, a guide sleeve 14 is installed in the inner hole of the overflow support frame 7, a guide sleeve rod 13 is installed in the inner hole of the guide sleeve 14, the lower end of the guide sleeve rod 13 is connected with a main valve flap 17 and forms a sealing pair with the main valve port sealing ring 6, a splash-proof cushion 8 and a protective baffle plate 9 are sleeved on the guide sleeve 14, the splash-proof cushion 8 is made of ventilating and water-blocking materials, and has ventilating and water-blocking functions. The end part of the inner hole of the guide sleeve rod 13 is provided with a trace exhaust port 10, the inner hole of the guide sleeve rod 13 is provided with a micropore sealing ring 11 and a guide rod 15, the micropore sealing ring 11 and the guide rod conical head 12 of the guide rod 15 form a micropore sealing pair, and the lower end of the guide rod 15 is connected with a floating ball 19 through threads and is fastened through a locking nut 18. The middle part of the guide rod 15 is provided with a limiting retainer ring 20, the cover body 4 is welded with the outer wall of the main valve body 3 through a connecting plate 24, the connecting plate 24 is provided with an air inlet and outlet channel 2, the flange 1 is welded with the main valve body 3, an flange overflowing plate 21 is arranged in an inner hole of the flange 1, flange overflowing holes 22 are uniformly distributed on the flange overflowing plate 21, and a sealing ring 23 is arranged at the port of the flange 1 and the flange overflowing plate 21.

Claims

1. A composite double-port negative pressure suppressor is characterized in that a partition plate connector is welded in a main valve body, an inner hole of the partition plate connector is provided with an overflowing supporting frame through threads, the overflowing supporting frame is provided with an overflowing hole, the partition plate connector and the end part of the overflowing supporting frame are provided with a main valve port sealing ring, a guide sleeve is arranged in the inner hole of the overflowing supporting frame and is provided with a guide sleeve rod, the lower end of the guide sleeve rod is connected with a main valve flap and forms a sealing pair with the main valve port sealing ring, the guide sleeve is sleeved with a splash-proof cushion pad and a protective baffle plate, the end part of the inner hole of the guide sleeve rod is provided with a micro exhaust port, a micro-hole sealing ring and a guide rod are arranged in the inner hole of the guide sleeve rod, the micro-hole sealing ring and a guide rod conical head of the guide rod form a micro-hole sealing pair, and the lower end of the guide rod is connected through threads and fastened through a locking nut; the middle part of the guide rod is provided with a limiting retaining ring, the cover body is welded with the outer wall of the main valve body through a connecting plate, an air inlet and exhaust channel is arranged on the connecting plate, a flange is welded with the main valve body, an overflow plate is arranged in an inner hole of the flange, flange overflow holes are uniformly distributed on the overflow plate, and a sealing ring is arranged on the end openings of the flange and the overflow plate.