Secondary water supply device for building fire protection

Abstract

The utility model discloses a secondary water supply device for building fire protection, which comprises a box body, and the upper end of the box body is fixedly connected with a sealing cover. In the utility model, in an initial state, the first valve, the fourth valve and the fifth valve are closed, the second valve and the third valve are opened, water is injected through the second connecting pipe, enters the filtering tank through the second connecting pipe and the liquid inlet pipe, is filtered by the second filter screen, the third filter screen and the fourth filter screen, and enters the box body through the first connecting pipe; when the second filter screen, the third filter screen and the fourth filter screen need to be cleaned, a fourth valve and a fifth valve are opened, a second valve and a third valve are closed, water is injected through a second connecting pipe, and the water enters the filter tank through the second connecting pipe, so that the second filter screen, the third filter screen and the fourth filter screen can be backwashed and cleaned; waste liquid is discharged through the waste discharge pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of a secondary water supply device for building fire fighting, in particular to a secondary water supply device for building fire fighting. Background Art

[0002] Secondary water supply refers to the form in which units or individuals store and pressurize urban public water supply or water supplied by self-built facilities, and then supply it to users or for their own use through pipelines. Secondary water supply devices for building fire protection are mainly used to eliminate fire hazards, prevent fire disasters and resolve fires.

[0003] Existing secondary water supply devices for building fire fighting, such as a secondary water supply device for high-rise building fire fighting disclosed in publication number CN212452920U, have the advantage of being easy to move, but this secondary water supply device is inconvenient to filter the fire fighting water flow input into the water storage tank before entering, so as to filter impurities in the water flow and avoid the impurities from accumulating at the bottom of the water storage tank after entering the water storage tank, causing the problem of clogging the water storage tank during use. In order to overcome these disadvantages, the utility model provides a secondary water supply device for building fire fighting. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a secondary water supply device for building fire fighting.

[0005] In order to achieve the above-mentioned objectives, the utility model adopts the following technical scheme: a secondary water supply device for building fire fighting, comprising a box body, a sealing cover is fixedly connected to the upper end of the box body, a filter tank is arranged on one side of the box body, an end cover is fixedly connected to the upper end of the filter tank, a second filter screen, a third filter screen and a fourth filter screen are arranged inside the filter tank, a first connecting pipe is fixedly connected to one side of the upper end of the end cover, one end of the first connecting pipe is connected to the interior of the box body, the other end of the first connecting pipe is connected to the interior of the end cover, a liquid inlet pipe is fixedly connected to the other side of the upper end of the end cover, the bottom end of the liquid inlet pipe passes through the end cover, the second filter screen, the third filter screen and the fourth filter screen are connected to the bottom end of the filter tank, a second connecting pipe is fixedly connected to the middle position of the upper end of the end cover, one end of the second connecting pipe is connected to the interior of the end cover, the upper end of the liquid inlet pipe is communicated with the second connecting pipe, and the bottom end of the filter tank is fixedly connected to a waste pipe.

[0006] Furthermore, a water pump is provided on one side of the box body, an input end of the water pump is fixedly connected to a liquid extraction pipe, and an output end of the water pump is fixedly connected to a liquid discharge pipe.

[0007] Furthermore, one end of the liquid extraction pipe passes through the box and is fixedly connected to a first filter screen, and the liquid extraction pipe is fixedly connected to a first valve.

[0008] Furthermore, a second valve is fixedly connected to the first connecting pipe, and a third valve is fixedly connected to the liquid inlet pipe.

[0009] Furthermore, a fourth valve is fixedly connected to the second connecting pipe, and a fifth valve is fixedly connected to the waste discharge pipe.

[0010] Furthermore, the diameters of the filter holes of the first filter screen, the second filter screen, the third filter screen and the fourth filter screen gradually increase.

[0011] Beneficial effects of the utility model:

[0012] When the utility model is in use, the secondary water supply device for building fire fighting, in an initial state, the first valve, the fourth valve and the fifth valve are closed, the second valve and the third valve are opened, water is injected through the second connecting pipe, the water enters the filter tank through the second connecting pipe and the liquid inlet pipe, and after being filtered by the second filter screen, the third filter screen and the fourth filter screen, it enters the interior of the box through the first connecting pipe; when the second filter screen, the third filter screen and the fourth filter screen need to be cleaned, the fourth valve and the fifth valve are opened, the second valve and the third valve are closed, water is injected through the second connecting pipe, the water enters the filter tank through the second connecting pipe, so that the second filter screen, the third filter screen and the fourth filter screen can be backwashed and cleaned, and the waste liquid is discharged through the waste discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 : A front view of the utility model;

[0015] Figure 2 : Schematic diagram of the internal structure of the box of the utility model;

[0016] Figure 3 : Schematic diagram of the filter tank structure of the utility model;

[0017] Figure 4 : Schematic diagram of the internal structure of the filter tank of the present utility model.

[0018] The reference numerals are as follows:

[0019] 1. Box body; 2. Sealing cover; 3. Filter tank; 4. End cover; 5. First connecting pipe; 6. Liquid inlet pipe; 7. Second connecting pipe; 8. Waste discharge pipe; 9. Water pump; 10. Liquid discharge pipe; 11. Liquid extraction pipe; 12. First filter screen; 13. First valve; 14. Second valve; 15. Third valve; 16. Fourth valve; 17. Fifth valve; 18. Second filter screen; 19. Third filter screen; 20. Fourth filter screen. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-4 As shown, it relates to a secondary water supply device for building fire protection, including a box body 1, a sealing cover 2 is fixedly connected to the upper end of the box body 1, a filter tank 3 is arranged on one side of the box body 1, an end cover 4 is fixedly connected to the upper end of the filter tank 3, a second filter screen 18, a third filter screen 19 and a fourth filter screen 20 are arranged inside the filter tank 3, a first connecting pipe 5 is fixedly connected to one side of the upper end of the end cover 4, one end of the first connecting pipe 5 is connected to the inside of the box body 1, and the other end of the first connecting pipe 5 is connected to the inside of the end cover 4, a liquid inlet pipe 6 is fixedly connected to the other side of the upper end of the end cover 4, the bottom end of the liquid inlet pipe 6 passes through the end cover 4, the second filter screen 18, the third filter screen 19 and the fourth filter screen 20 are connected to the bottom end of the filter tank 3, a second connecting pipe 7 is fixedly connected to the middle position of the upper end of the end cover 4, one end of the second connecting pipe 7 is connected to the inside of the end cover 4, the upper end of the liquid inlet pipe 6 is communicated with the second connecting pipe 7, and a waste pipe 8 is fixedly connected to the bottom end of the filter tank 3.

[0022] like Figure 1-4 As shown, a water pump 9 is arranged on one side of the box body 1, the input end of the water pump 9 is fixedly connected to a liquid extraction pipe 11, the output end of the water pump 9 is fixedly connected to a liquid discharge pipe 10, one end of the liquid extraction pipe 11 passes through the box body 1 and is fixedly connected to a first filter screen 12, and a first valve 13 is fixedly connected to the liquid extraction pipe 11. By opening the first valve 13, the water inside the water tank can be extracted through the liquid extraction pipe 11 by the water pump 9, and then discharged through the liquid discharge pipe 10.

[0023] like Figure 1-4 As shown, the first connecting pipe 5 is fixedly connected with a second valve 14 , the liquid inlet pipe 6 is fixedly connected with a third valve 15 , the second connecting pipe 7 is fixedly connected with a fourth valve 16 , and the waste pipe 8 is fixedly connected with a fifth valve 17 .

[0024] like Figure 1-4As shown, the diameters of the filter holes of the first filter 12, the second filter 18, the third filter 19 and the fourth filter 20 are gradually increased, and water can be gradually filtered by the first filter 12, the second filter 18, the third filter 19 and the fourth filter 20.

[0025] Working principle: When in use, in the initial state, the first valve 13, the fourth valve 16 and the fifth valve 17 are closed, the second valve 14 and the third valve 15 are opened, and water is injected through the second connecting pipe 7. The water enters the filter tank 3 through the second connecting pipe 7 and the liquid inlet pipe 6, and after being filtered by the second filter screen 18, the third filter screen 19 and the fourth filter screen 20, it enters the box body 1 through the first connecting pipe 5. By opening the first valve 13, the water inside the water tank can be pumped out through the liquid extraction pipe 11 by the water pump 9, and then discharged through the liquid discharge pipe 10 for secondary water supply;

[0026] When the second filter 18, the third filter 19 and the fourth filter 20 need to be cleaned, the fourth valve 16 and the fifth valve 17 are opened, the second valve 14 and the third valve 15 are closed, water is injected through the second connecting pipe 7, and the water enters the filter tank 3 through the second connecting pipe 7, so that the second filter 18, the third filter 19 and the fourth filter 20 can be backwashed and cleaned, and the waste liquid is discharged through the waste pipe 8.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A secondary water supply device for building fire protection, comprising a housing (1), characterized in that: The upper end of the box body (1) is fixedly connected to a sealing cover (2); a filter tank (3) is provided on one side of the box body (1); an end cover (4) is fixedly connected to the upper end of the filter tank (3); a second filter screen (18), a third filter screen (19) and a fourth filter screen (20) are provided inside the filter tank (3); a first connecting pipe (5) is fixedly connected to one side of the upper end of the end cover (4); one end of the first connecting pipe (5) is connected to the inside of the box body (1); and the other end of the first connecting pipe (5) is connected to the inside of the end cover (4). A liquid inlet pipe (6) is fixedly connected to the other side of the upper end of the end cover (4); the bottom end of the liquid inlet pipe (6) passes through the end cover (4), the second filter screen (18), the third filter screen (19) and the fourth filter screen (20) and is connected to the bottom end of the filter tank (3); a second connecting pipe (7) is fixedly connected to the middle position of the upper end of the end cover (4); one end of the second connecting pipe (7) is connected to the inside of the end cover (4); the upper end of the liquid inlet pipe (6) is in communication with the second connecting pipe (7); and the bottom end of the filter tank (3) is fixedly connected to a waste discharge pipe (8).

2. A secondary water supply device for building fire fighting according to claim 1, characterized in that: A water pump (9) is provided on one side of the box body (1); an input end of the water pump (9) is fixedly connected to a liquid extraction pipe (11); and an output end of the water pump (9) is fixedly connected to a liquid discharge pipe (10).

3. A secondary water supply device for building fire fighting according to claim 2, characterized in that: One end of the liquid extraction pipe (11) passes through the box body (1) and is fixedly connected to a first filter screen (12); the liquid extraction pipe (11) is fixedly connected to a first valve (13).

4. A secondary water supply device for building fire fighting according to claim 1, characterized in that: The first connecting pipe (5) is fixedly connected to a second valve (14), and the liquid inlet pipe (6) is fixedly connected to a third valve (15).

5. A secondary water supply device for building fire fighting according to claim 1, characterized in that: The second connecting pipe (7) is fixedly connected to a fourth valve (16), and the waste discharge pipe (8) is fixedly connected to a fifth valve (17).

6. A secondary water supply device for building fire fighting according to claim 3, characterized in that: The diameters of the filter holes of the first filter screen (12), the second filter screen (18), the third filter screen (19) and the fourth filter screen (20) gradually increase.

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