CN113374031A

CN113374031A - Outdoor ground-type fire hydrant without water leakage and freeze protection

Info

Publication number: CN113374031A
Application number: CN202110529787.0A
Authority: CN
Inventors: 陈好; 许晓丽; 李长伟; 李凌方; 赵紫浩
Original assignee: China National Offshore Oil Corp CNOOC; Offshore Oil Engineering Co Ltd
Current assignee: China National Offshore Oil Corp CNOOC; Offshore Oil Engineering Co Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-09-10

Abstract

The invention discloses an outdoor ground-mounted fire hydrant without water leakage and with an anti-freezing type, which comprises a hydrant pipe, wherein one side of the fire hydrant is provided with a throat part, the middle of the throat part is provided with a surplus water outlet, the bottom of the fire hydrant is provided with a pebble pit, a water tank is fixedly arranged in the pebble pit, one side of the water tank is provided with a water inlet, the water inlet is fixedly connected with a drain pipe, the top of the water tank is fixedly provided with an automatic exhaust valve, the bottom of the throat part is fixedly provided with a valve body, the interior of the valve body is fixedly provided with a valve core, the top of the valve body is fixedly provided with a valve seat, and the top of the automatic exhaust valve is fixedly provided with an air permeable cap. The outdoor ground-type fire hydrant without water leakage and freeze protection is convenient to manufacture, low in cost, easy to popularize and practical; the assembly is simple and convenient, and the maintenance is convenient; manual operation is not needed, and leakage prevention and external drainage are avoided; the residual water in the inner cavity of the plug pipe is naturally drained by gravity, and the anti-freezing effect is obvious.

Description

Outdoor ground-type fire hydrant without water leakage and freeze protection

Technical Field

The invention relates to the technical field of land fire-fighting equipment, in particular to an outdoor overground fire hydrant without water leakage and with an anti-freezing function.

Background

Outdoor ground fire hydrant is an important fire-fighting device arranged on a fire-fighting water supply network on land, however, the anti-freezing problem of the fire hydrant must be considered in cold climate areas. In the prior art, the anti-freezing function of the outdoor overground fire hydrant is generally realized by arranging a manual or automatic drain valve, but the defects that the manual valve is inconvenient to operate manually, residual water in an inner cavity of a hydrant pipe is not easy to drain completely, continuous water leakage can occur from the drain valve, the drain valve is easy to block by mud and the like exist. Therefore, there is a need to find a new anti-freezing fire hydrant to solve the disadvantages of the existing anti-freezing outdoor ground fire hydrant.

The prior art has the following defects or problems:

1. the existing outdoor ground-mounted fire hydrant without water leakage and antifreezing is generally provided with a manual or automatic water drain valve to realize the antifreezing function of the outdoor ground-mounted fire hydrant, but has the defects that the manual operation of the manual valve is inconvenient, the residual water in the inner cavity of the hydrant pipe is not easy to drain, continuous water leakage can occur from the water drain valve, the water drain valve is easy to be blocked by soil, and the like;

2. the existing anti-freezing outdoor ground-type fire hydrant is relatively troublesome to manufacture, relatively high in manufacturing cost and relatively low in batch processing efficiency.

Disclosure of Invention

The invention aims to provide an outdoor overground type fire hydrant without water leakage and anti-freezing, aiming at the defects of the prior art, and aiming at solving the problems that the anti-freezing function of the outdoor overground type fire hydrant is generally realized by arranging a manual or automatic water drain valve in the background art, but the manual valve is inconvenient to operate manually, residual water in the inner cavity of the hydrant pipe is difficult to drain completely, continuous water leakage is possibly caused from the water drain valve, the water drain valve is easy to be blocked by mud, and the like.

In order to achieve the purpose, the invention provides the following technical scheme: outdoor ground formula fire hydrant of the anti-freezing type of exempting from to leak water, its characterized in that: including the bolt pipe, fire hydrant one side is provided with the throat, be provided with the surplus mouth of a river of arranging in the middle of the throat, the fire hydrant bottom is provided with the cobble hole, the inside fixed mounting in cobble hole has the water tank, water tank one side is provided with the water inlet, water inlet fixedly connected with drain pipe, water tank top fixed mounting has automatic exhaust valve, throat bottom fixed mounting has the valve body, the inside fixed mounting of valve body has the case, valve body top fixed mounting has the disk seat, automatic exhaust valve top fixed mounting has ventilative cap.

According to the preferred technical scheme, the hydrant pipe forms a diffusion angle of 3-4 degrees in the hydrant body, and the hydrant pipe, the throat part and the valve body are connected into a whole through the flange to form a Venturi tube-shaped inner cavity of the hydrant.

As a preferred technical scheme of the invention, the throat part and the valve body are of an integrally formed structure, and the sectional area of the inner cavity of the throat part is obviously reduced compared with that of the inner cavity of the valve body.

As the preferable technical scheme of the invention, the waste water discharging port is directly communicated with the inner cavity of the throat part, and the outside of the waste water discharging port is connected with a water discharging pipe.

As a preferable technical scheme of the invention, the volume of the water tank is larger than the volume of the inner cavity of the plug tube.

As a preferred technical scheme of the invention, the drain pipe is a hard metal pipe, one end of the drain pipe is connected with the residual water draining port, and the other end of the drain pipe is connected with the water inlet at the lower end of the water tank.

As the preferred technical scheme of the invention, the automatic exhaust valve is provided with a ventilation cap, and side holes are formed on the periphery of the ventilation cap.

Compared with the prior art, the invention provides the anti-leakage anti-freezing outdoor overground fire hydrant, which has the following beneficial effects:

the outdoor ground fire hydrant of the anti-leakage anti-freezing type has the advantages of convenient manufacture, low cost, easy popularization and practicability; the assembly is simple and convenient, and the maintenance is convenient; manual operation is not needed, and leakage prevention and external drainage are avoided; the residual water in the inner cavity of the plug pipe is naturally drained by gravity, and the anti-freezing effect is obvious.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a partial structural schematic diagram of the present invention.

In the figure: 1. a plug tube; 2. a throat; 3. a waste water discharge port; 4. a pebble pit; 5. a water tank; 6. a water inlet; 7. a drain pipe; 8. an automatic exhaust valve; 9. a valve body; 10. a valve core; 11. a valve seat; 12. an air permeable cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, in this embodiment: outdoor ground formula fire hydrant of the anti-freezing type of exempting from to leak water, its characterized in that: including the bolt 1, fire hydrant one side is provided with throat 2, be provided with the surplus mouth of a river 3 in the middle of the 2 throats of throat, the fire hydrant bottom is provided with cobble hole 4, the inside fixed mounting in cobble hole 4 has water tank 5, water tank 5 one side is provided with

water inlet

6, 6 fixedly connected with drain pipes of

water inlet

7, 5 top fixed mounting in water tank have

automatic exhaust valve

8, 2 bottom fixed mounting in throat have valve body 9, the inside fixed mounting in valve body 9 has

case

10, 9 top fixed mounting in valve body has

disk seat

11, 8 top fixed mounting in automatic exhaust valve has ventilative cap 12.

In the embodiment, the bolt pipe 1 forms a diffusion angle of 3-4 degrees in the fire hydrant body, the bolt pipe 1, the throat part 2 and the valve body 9 are connected into a whole through the flange and form a Venturi-tube-shaped fire hydrant inner cavity, and in order to form the Venturi-tube-shaped fire hydrant inner cavity, water flow enters the inner cavity of the fire hydrant valve body 9 from a water conveying pipeline and then generates a Venturi effect; the throat part 2 and the valve body 9 are of an integrally formed structure, the sectional area of the inner cavity of the throat part 2 is obviously reduced compared with that of the inner cavity of the valve body 9, and the throat part 2 and the valve body 9 are connected together well and have good sealing performance; the surplus water discharging port 3 is directly communicated with the inner cavity of the throat part 2, the outer part of the surplus water discharging port is connected with a water discharging pipe 7, surplus water in the inner cavity of the bolt pipe 1 naturally discharges the fire hydrant body to the water tank 5 along the water discharging pipe 7 through the surplus water discharging port 3 by gravity, and the surplus water is discharged to the water tank 5 better; the volume of the water tank 5 is larger than that of the inner cavity of the bolt tube 1, so that all residual water in the inner cavity of the bolt tube 1 can be collected for better collecting the residual water; the drain pipe 7 is a hard metal pipe, one end of the drain pipe 7 is connected with the residual water draining port 3, and the other end of the drain pipe 7 is connected with the water inlet 6 at the lower end of the water tank 5, so that the drain pipe 7 is prevented from being damaged, and the service life of the drain pipe is prolonged; the automatic exhaust valve 8 is provided with a ventilation cap 12, side holes are formed around the ventilation cap 12, and the effect of preventing negative pressure suction soil blockage can be realized by combining the effect of the pebble pit 4.

The working principle and the using process of the invention are as follows: the outdoor ground-type fire hydrant without water leakage and freeze protection is convenient to manufacture, low in cost, easy to popularize and practical; the assembly is simple and convenient, and the maintenance is convenient; manual operation is not needed, and leakage prevention and external drainage are avoided; residual water in the inner cavity of the plug pipe 1 is naturally drained by gravity, and the anti-freezing effect is obvious.

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. Outdoor ground formula fire hydrant of the anti-freezing type of exempting from to leak water, its characterized in that: including hydrant pipe (1), fire hydrant one side is provided with throat (2), be provided with surplus mouth of a river (3) in the middle of throat (2), the fire hydrant bottom is provided with cobble hole (4), cobble hole (4) inside fixed mounting has water tank (5), water tank (5) one side is provided with water inlet (6), water inlet (6) fixedly connected with drain pipe (7), water tank (5) top fixed mounting has automatic exhaust valve (8), throat (2) bottom fixed mounting has valve body (9), valve body (9) inside fixed mounting has case (10), valve body (9) top fixed mounting has disk seat (11), automatic exhaust valve (8) top fixed mounting has ventilative cap (12).

2. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the fire hydrant is characterized in that the hydrant pipe (1) is in a diffusion angle of 3-4 degrees in the fire hydrant body, and the hydrant pipe (1), the throat part (2) and the valve body (9) are connected into a whole through a flange to form a Venturi tube-shaped fire hydrant inner cavity.

3. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the throat part (2) and the valve body (9) are of an integrally formed structure, and the sectional area of the inner cavity of the throat part (2) is obviously reduced compared with that of the inner cavity of the valve body (9).

4. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the waste water discharging port (3) is directly communicated with the inner cavity of the throat part (2), and the outside of the waste water discharging port is connected with a water discharging pipe (7).

5. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the volume of the water tank (5) is larger than the volume of the inner cavity of the bolt tube (1).

6. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the water discharging pipe (7) is a hard metal pipe, one end of the water discharging pipe (7) is connected with the residual water discharging port (3), and the other end of the water discharging pipe (7) is connected with the water inlet (6) at the lower end of the water tank (5).

7. The outdoor aboveground fire hydrant of the external leakage-free antifreezing type according to claim 1, wherein: the automatic exhaust valve (8) is provided with a ventilation cap (12), and side holes are formed in the periphery of the ventilation cap (12).