Negative pressure filter unit

Abstract

The utility model relates to a negative pressure filter unit. Comprising a box body, a circulating water pump arranged in the box body, a rain cover for preventing water from entering the circulating water pump, a first water inlet pneumatic valve, a second water inlet pneumatic valve, a first filtering pump inlet pneumatic valve, a second filtering pump inlet pneumatic valve, a first filtering water outlet manual valve and a second filtering water outlet manual valve, a first filtering water outlet pneumatic valve and a third filtering water outlet pneumatic valve; the rainproof cover is arranged above the box body; the first water inlet pneumatic valve and the second water inlet pneumatic valve are arranged on the side, away from the circulating water pump, of the box body. The first filtering pump-entering pneumatic valve and the second filtering pump-entering pneumatic valve are arranged in the middle of the box body; the first filtering water outlet manual valve, the second filtering water outlet manual valve and the first filtering water outlet pneumatic valve are arranged on the side, close to the circulating water pump, of the box body. The filter unit is the most important equipment in swimming pool water treatment, and aims to eliminate suspended particles in circulating water, so that the transparency of water is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter unit field especially relates to a negative pressure filter unit. BACKGROUND

[0002] In prior art, negative pressure filter unit is the main method of removing swimming pool water pollution particles. The unit is composed of a rectangular steel tank, water supply and drainage pipeline system and UPVC pipeline (including butterfly valve). The filter unit inside adopts 0.4-0.8mm level silica sand, which can remove suspended solids in the filtering process. The size of the support layer gravel of filter medium should be 1-2mm.

[0003] It can be seen that: filter unit is the most important equipment in swimming pool water treatment, and its purpose is to eliminate suspended particles in circulating water, thereby improving the transparency of water. SUMMARY

[0004] The embodiment of the application provides a negative pressure filter unit, which realizes that the filter unit is the most important equipment in swimming pool water treatment, and its purpose is to eliminate suspended particles in circulating water, thereby improving the transparency of water.

[0005] The technical scheme adopted by the embodiment of the application is as follows.

[0006] A negative pressure filter unit, comprising a box body, a circulating water pump arranged in the box body, a rain cover for preventing water from entering the circulating water pump, a first water inlet pneumatic valve, a second water inlet pneumatic valve, a first filter inlet pump pneumatic valve, a second filter inlet pump pneumatic valve, a first filter outlet manual valve, a second filter outlet manual valve, a first filter outlet pneumatic valve and a third filter outlet pneumatic valve, the rain cover is arranged above the box body, the first water inlet pneumatic valve and the second water inlet pneumatic valve are arranged on the side of the box body away from the circulating water pump, the first filter inlet pump pneumatic valve and the second filter inlet pump pneumatic valve are arranged at the middle of the box body, and the first filter outlet manual valve, the second filter outlet manual valve and the first filter outlet pneumatic valve are arranged on the side of the box body close to the circulating water pump.

[0007] As a further improvement of the above technical solutions: further comprising backwash inlet water pneumatic valve, second backwash inlet pump pneumatic valve and backwash outlet water pneumatic valve; when filtering, the first inlet water pneumatic valve and the second inlet water pneumatic valve are opened, at this time, water in the swimming pool enters the box for filtering; after filtering, the filtered water passes through the second filter inlet pump pneumatic valve and the second filter outlet water manual valve, enters the circulating water pump, and then returns to the swimming pool through the first filter outlet water manual valve, the second filter outlet water pneumatic valve and the third filter outlet water pneumatic valve; when backwashing, the backwash inlet water pneumatic valve is opened, water enters the box in the reverse direction of filtering, the first filter inlet pump pneumatic valve and the second backwash inlet pump pneumatic valve are opened, backwash water enters the circulating water pump, and then flows out of the negative pressure filter device through the backwash outlet water pneumatic valve.

[0008] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0009] 1. Since the first inlet water pneumatic valve and the second inlet water pneumatic valve are opened when filtering, at this time, water in the swimming pool enters the box for filtering; after filtering, the filtered water passes through the second filter inlet pump pneumatic valve and the second filter outlet water manual valve, enters the circulating water pump, and then returns to the swimming pool through the first filter outlet water manual valve, the second filter outlet water pneumatic valve and the third filter outlet water pneumatic valve; when backwashing, the backwash inlet water pneumatic valve is opened, water enters the box in the reverse direction of filtering, the first filter inlet pump pneumatic valve and the second backwash inlet pump pneumatic valve are opened, backwash water enters the circulating water pump, and then flows out of the negative pressure filter device through the backwash outlet water pneumatic valve, thereby realizing mature technology, no need for filter aid, double-pump design, lower energy consumption than other filter devices, detachable top cover, convenient maintenance, saving of 75% space, reduction of investment, full-automatic and manual operation modes, and reduction of staff cost. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a top view of the negative pressure filter unit in the utility model.

[0011] Figure 2 It is a side view of the negative pressure filter unit in the utility model.

[0012] Figure 3 It is a sectional view of the negative pressure filter unit in the utility model.

[0013] In the drawing: 1, rain cover; 10, first filter outlet water manual valve; 11, second filter outlet water manual valve; 12, first filter outlet water pneumatic valve; 13, third filter outlet water pneumatic valve; 14, backwash outlet water pneumatic valve; 2, box; 3, circulating water pump; 4, first inlet water pneumatic valve; 5, second inlet water pneumatic valve; 6, backwash inlet water pneumatic valve; 7, first filter inlet pump pneumatic valve; 8, second filter inlet pump pneumatic valve; 9, second backwash inlet pump pneumatic valve. DETAILED DESCRIPTION

[0014] The embodiment of the present application realizes that the filter unit is the most important equipment in the swimming pool water treatment, and the purpose is to eliminate the suspended particles in the circulating water, thereby improving the transparency of the water.

[0015] The technical solution in the embodiment of the present application is to solve the above problems, and the general idea is as follows

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail in combination with the drawings of the specification and the specific embodiments.

[0017] A negative pressure filter unit, comprising a box body 2, a circulating water pump 3 arranged in the box body 2, a rain cover 1 arranged on the box body 2 to prevent the circulating water pump 3 from entering water, a first water inlet pneumatic valve 4, a second water inlet pneumatic valve 5, a first filter inlet pump pneumatic valve 7, a second filter inlet pump pneumatic valve 8, a first filter outlet manual valve 10, a second filter outlet manual valve 11, a first filter outlet pneumatic valve 12 and a third filter outlet pneumatic valve 13; the rain cover 1 is arranged above the box body 2; the first water inlet pneumatic valve 4 and the second water inlet pneumatic valve 5 are arranged on the side of the box body 2 away from the circulating water pump 3; the first filter inlet pump pneumatic valve 7 and the second filter inlet pump pneumatic valve 8 are arranged at the middle of the box body 2; the first filter outlet manual valve 10, the second filter outlet manual valve 11, the first filter outlet pneumatic valve 12 are arranged on the side of the box body 2 close to the circulating water pump 3.

[0018] It also comprises a backwash inlet pneumatic valve 6, a second backwash inlet pump pneumatic valve 9 and a backwash outlet pneumatic valve 14; during filtration, the first water inlet pneumatic valve 4 and the second water inlet pneumatic valve 5 are opened, at this time the water in the swimming pool enters the box body 2 for filtration; after filtration, the filtered water passes through the second filter inlet pump pneumatic valve 8 and the second filter outlet manual valve 11, enters the circulating water pump 3, and then flows back to the swimming pool through the first filter outlet manual valve 10, the second filter outlet pneumatic valve 12 and the third filter outlet pneumatic valve 13; during backwashing, the backwash inlet pneumatic valve 6 is opened, the water enters the box body 2 in the reverse direction, the first filter inlet pump pneumatic valve 7 and the second backwash inlet pump pneumatic valve 9 are opened, the backwash water enters the circulating water pump 3, and then flows out of the negative pressure filter device through the backwash outlet pneumatic valve 14.

[0019] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present application.

[0020] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A negative pressure filter package, characterized by, The utility model provides a negative pressure filter equipment, including box (2), set up in the circulating water pump (3) of box (2), prevent the rain cover (1) of circulating water pump (3) water, first water inlet pneumatic valve (4), second water inlet pneumatic valve (5), first filter pump inlet pneumatic valve (7), second filter pump inlet pneumatic valve (8), first filter outlet water manual valve (10), second filter outlet water manual valve (11), first filter outlet water pneumatic valve (12) and third filter outlet water pneumatic valve (13), the rain cover (1) is set up on the box (2), the first water inlet pneumatic valve (4) with second water inlet pneumatic valve (5) set up in the side of box (2) away from circulating water pump (3), first filter pump inlet pneumatic valve (7) and second filter pump inlet pneumatic valve (8) are set up in the middle of box (2), first filter outlet water manual valve (10), second filter outlet water manual valve (11), first filter outlet water pneumatic valve (12) set up in the side of box (2) close to circulating water pump (3).

2. The negative pressure filter unit of claim 1, wherein, Also including backwash water inlet pneumatic valve (6), second backwash pump inlet pneumatic valve (9) and backwash outlet water pneumatic valve (14), when filtering, first water inlet pneumatic valve (4), second water inlet pneumatic valve (5) open, at this time, the water in swimming pool enters the box (2) and filters, after filtering, water passes through second filter pump inlet pneumatic valve (8), second filter outlet water manual valve (11), enters circulating water pump (3), after passing through first filter outlet water manual valve (10), second filter outlet water pneumatic valve (12) and third filter outlet water pneumatic valve (13), backflow to the swimming pool, when backwashing, backwash water inlet pneumatic valve (6) opens, and water enters the box (2) by the reverse of filtering, first filter pump inlet pneumatic valve (7), second backwash pump inlet pneumatic valve (9) open, and backwash water enters circulating water pump (3), and then flows out from backwash outlet water pneumatic valve (14) and is filtered under negative pressure equipment.

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