CN213062226U

CN213062226U - Negative pressure eliminator for non-negative pressure water supply system

Info

Publication number: CN213062226U
Application number: CN202021856646.7U
Authority: CN
Inventors: 石义民
Original assignee: Chengdu Yusheng Technology Co ltd
Current assignee: Chengdu Yusheng Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-27
Anticipated expiration: 2030-08-31

Abstract

The utility model provides a no negative pressure is negative pressure annihilator for water supply system, including the casing of ventilating, protection casing, flange plate, connecting pipe, floater, the otter board of ventilating, directional lagging and connection fan piece. The negative pressure eliminator is applied to the ventilation connecting pipe of the surge tank without negative pressure water supply, the portable grab handle is held when the negative pressure eliminator is installed, the connection of the connecting flange plate and the ventilation connecting pipe is convenient, the convenience of installation and operation is increased, and the efficiency of maintenance and operation is improved; when the water level of the water supply equipment is low and the air needs to be exhausted, the floating ball descends, the air passes through the gap and the through hole of the connecting pipe, is filtered by the filter pad through the ventilation screen plate and then is exhausted to the outside, when the liquid level rises, the floating ball is driven to rise, the lifting rod and the sealing plate are driven to rise, and the air is tightly propped against the ventilation screen plate, so that the effect of blocking the air flow is achieved, and the downward occurrence of water leakage is avoided; the setting of filter pad and filtration membrane is favorable to filtering the air that enters into jar internal, ensures the safety of drinking water.

Description

Negative pressure eliminator for non-negative pressure water supply system

Technical Field

The utility model belongs to the technical field of no negative pressure water supply corollary equipment, especially, relate to a no negative pressure annihilator for negative pressure water supply system.

Background

With the development of society and the increase of high-rise buildings, negative pressure-free water supply equipment is generated in order to ensure the water consumption of high-rise residents, and a water pump is directly connected in series with a municipal pipe network and is widely applied to secondary water supply in various occasions. The water pump direct tandem connection water supply is characterized in that the suction distance of the water pump is easy to generate negative pressure influence on a tap water pipe network directly connected in series, so that local pressure is reduced, and normal water use of peripheral users is influenced. The vacuum suppressor is mainly used on municipal tap water pipe network secondary pressurized water supply equipment to suppress negative pressure generated in a water supply system and keep the pressure balance of the tap water pipe network.

In addition, chinese patent publication No. CN205975815U, entitled negative pressure eliminator, includes: the air purification and disinfection device comprises a floating ball control device, an air purification and disinfection pipeline device and an air pipeline, wherein the air purification and disinfection pipeline device is arranged on the air pipeline, and the air purification and disinfection device consists of a filter layer and an ultraviolet lamp. However, the existing non-negative pressure water supply system has the problems that the negative pressure is eliminated, the entering gas is not convenient to filter, and the service life is inconvenient and short.

Therefore, it is necessary to provide a negative pressure eliminator for a non-negative pressure water supply system.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a no negative pressure is negative pressure annihilator for water supply system to solve current no negative pressure water supply system and eliminate at the negative pressure and be not convenient for filter entering gas, the shorter problem of inconvenient life-span of use.

A negative pressure eliminator for a non-negative pressure water supply system comprises a ventilation shell, a connecting flange plate, a floating ball and a connecting fan sheet; the upper part of the ventilation shell is buckled with a protective cover, and a portable grab handle is connected to the upper part of the protective cover through a screw; the upper side transverse screw in the ventilation shell is connected with a ventilation screen plate, and the lower side transverse screw in the ventilation screen plate is connected with a directional sleeve plate; the connecting flange plate is arranged at the lower part of the ventilation shell, and the lower side of the inside of the connecting flange plate is in threaded connection with a connecting pipe; the floating ball is longitudinally arranged between the ventilation shell and the connecting pipe; the connecting fan sheet screw is connected between the ventilation shell and the protective cover.

Preferably, the upper part of the floating ball is connected with a suspension rod through a screw; the hanger rod longitudinally penetrates through the middle position inside the directional sleeve plate.

Preferably, a sealing plate is connected to the upper end of the hanger rod through a screw; the upper part of the outer surface of the suspender is sleeved with a telescopic spring.

Preferably, the interior of the protective cover is filled with a filter pad in an inserted manner; the lower part of the inner side of the protective cover is provided with an air hole.

Preferably, a plurality of threaded mounting holes are formed in the connecting flange plate.

Preferably, the outer surface of the connecting pipe is provided with an air hole.

Preferably, the protective cover is a double-layer 304 stainless steel shell; the lower part of the protective cover is provided with a through hole.

Preferably, the extension spring is disposed at an upper portion of the directional strap.

Preferably, the floating ball is a stainless steel ball.

Preferably, a rubber gasket is arranged at the upper part of the inner side of the connecting pipe.

Preferably, the inside of the filter pad is filled with an activated carbon particle layer.

Preferably, a PTFE (polytetrafluoroethylene) air filter membrane is sleeved on the upper end of the ventilation shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the negative pressure eliminator is applied to the ventilation connecting pipe of the surge tank without negative pressure water supply, has simple structure, is convenient for the alignment connection of the connecting flange and the ventilation connecting pipe by holding the handheld grab handle during the installation, increases the convenience of the installation operation and improves the efficiency of the maintenance operation; when the water level of the water supply equipment is low and the air needs to be exhausted, the floating ball descends, the air passes through the gap and the through hole of the connecting pipe, is filtered by the filter pad through the ventilation screen plate and then is exhausted to the outside, when the liquid level rises, the floating ball is driven to rise, the lifting rod and the sealing plate are driven to rise, and the air is tightly propped against the ventilation screen plate, so that the effect of blocking the air flow is achieved, and the downward occurrence of water leakage is avoided; the setting of filter pad and filtration membrane is favorable to filtering the air that enters into jar internal, ensures the safety of drinking water.

Drawings

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

Fig. 2 is a schematic structural view of the cross-sectional state of the present invention.

Fig. 3 is a schematic view of the installation and use state of the present invention.

In the figure:

1. a vented housing; 2. a protective cover; 21. a filter pad; 22. a vent hole; 3. a hand-held grab handle; 4. connecting a flange plate; 5. a connecting pipe; 6. a floating ball; 61. a boom; 62. a sealing plate; 63. a tension spring; 7. a ventilation screen plate; 8. a directional sleeve plate; 9. the fan blades are connected.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in fig. 1 to 2, the present invention provides a negative pressure eliminator for a non-negative pressure water supply system, which comprises a ventilation casing 1, a protective cover 2, a connecting flange 4, a connecting pipe 5, a floating ball 6, a ventilation screen 7, a directional sleeve plate 8 and a connecting fan blade 9, wherein the protective cover 2 is fastened on the upper part of the ventilation casing 1; the upper part of the protective cover 2 is connected with a portable grab handle 3 through a screw; the connecting pipe 5 is in threaded connection with the lower side of the inside of the connecting flange plate 4; the connecting flange plate 4 is welded at the lower part of the ventilation shell 1; the floating ball 6 is longitudinally arranged in the middle of the inside of the ventilation shell 1 and the connecting pipe 5; the ventilation screen plate 7 is transversely screwed at the upper side of the inside of the ventilation shell 1; the directional sleeve plate 8 is transversely screwed at the lower position inside the ventilation shell 1; the connecting fan sheet 9 is connected between the ventilation shell 1 and the protective cover 2 through screws; a hanging rod 61 is connected with the upper part of the floating ball 6 through a screw; the suspension rod 61 longitudinally penetrates through the inner middle position of the directional sleeve plate 8; a sealing plate 62 is connected to the upper end of the hanger rod 61 through a screw; the upper part of the outer surface of the hanger rod 61 is sleeved with a telescopic spring 63; a filter pad 21 is filled and inserted in the protective cover 2; the lower part of the inner side of the protective cover 2 is provided with a vent hole 22.

In the above embodiment, specifically, a plurality of threaded mounting holes are formed in the connecting flange 4; the outer surface of the connecting pipe 5 is provided with an air hole; the protective cover 2 is a double-layer stainless steel shell; the lower part of the protective cover 2 is provided with a through hole; and a rubber sealing gasket is arranged at the upper part of the inner side of the connecting pipe 5.

In the above embodiment, in particular, the extension spring 63 is disposed on the upper portion of the orientation sleeve plate 8; the floating ball 6 is a 304 stainless steel ball body.

In the above embodiment, specifically, the inside of the filter pad 21 is filled with an activated carbon particle layer; the upper end of the ventilation shell 1 is sleeved with a PTFE (polytetrafluoroethylene) air filtering membrane.

Principle of operation

As shown in the attached figure 3, when the negative pressure eliminator is used, the negative pressure eliminator is applied to the ventilation connecting pipe of the surge tank without negative pressure water supply, the structure is simple, the portable grab handle 3 is held when the negative pressure eliminator is installed, the connection of the connecting flange 4 and the ventilation connecting pipe is convenient, the convenience of installation and operation is increased, and the efficiency of maintenance and operation is improved; when water liquid of the water supply equipment is low and needs to be exhausted, the floating ball 6 descends, gas passes through the gap and the through hole of the connecting pipe 5, is filtered by the filter pad 21 through the ventilation screen plate 7 and then is exhausted to the outside, when the liquid level rises, the floating ball 6 is driven to rise, the suspension rod 61 and the sealing plate 62 are driven to rise and are tightly propped against the ventilation screen plate 7, the effect of blocking air flow is achieved, and downward leakage is avoided; the setting of filter pad 21 and filtration membrane is favorable to filtering the air that enters into the jar internal, ensures the safety of drinking water.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure eliminator for a non-negative pressure water supply system is characterized by comprising a ventilation shell (1), a connecting flange plate (4), a floating ball (6) and a connecting fan blade (9); the upper part of the ventilation shell is buckled with a protective cover (2), and the upper part of the protective cover (2) is in screw connection with a portable grab handle (3); the upper side of the inside of the ventilation shell (1) is transversely screwed with a ventilation screen plate (7), and the lower side of the inside of the ventilation screen plate is transversely screwed with a directional sleeve plate (8); the connecting flange plate (4) is arranged at the lower part of the ventilating shell (1), and the lower side inside the connecting flange plate is in threaded connection with a connecting pipe (5); the floating ball (6) is longitudinally arranged between the ventilation shell (1) and the connecting pipe (5); the connecting fan sheet (9) is connected between the ventilation shell (1) and the protective cover (2) through screws.

2. The vacuum eliminator for non-negative pressure water supply system according to claim 1, wherein a suspension rod (61) is screwed to the upper part of the floating ball (6); the suspension rod (61) longitudinally penetrates through the middle position inside the directional sleeve plate (8).

3. The vacuum eliminator for non-negative pressure water supply system according to claim 2, wherein a sealing plate (62) is screwed to the upper end of the hanger rod (61); the upper part of the outer surface of the suspension rod (61) is sleeved with a telescopic spring (63).

4. The negative pressure eliminator for the non-negative pressure water supply system according to any one of claims 1 to 3, characterized in that the interior of the protective cover (2) is filled with a filter pad (21); the lower part of the inner side of the protective cover (2) is provided with an air hole (22).

5. The negative pressure eliminator for the non-negative pressure water supply system according to claim 4, wherein the connecting flange plate (4) is internally provided with a plurality of threaded mounting holes.

6. The negative pressure eliminator as claimed in claim 5, wherein the connecting pipe (5) has air holes on its outer surface.

7. The negative pressure eliminator for non-negative pressure water supply system according to claim 5 or 6, characterized in that the protective cover (2) is a double-layer stainless steel shell; the lower part of the protective cover (2) is provided with a through hole.

8. The vacuum eliminator for non-negative pressure water supply system according to claim 3, wherein the extension spring (63) is provided at an upper portion of the directional sheathing plate (8).

9. The vacuum eliminator for non-negative pressure water supply system according to claim 7, wherein a rubber packing is provided at an inner upper portion of the connection pipe (5).

10. The negative pressure eliminator for a non-negative pressure water supply system according to claim 9, wherein the inside of the filter pad (21) is filled with a layer of activated carbon particles.