Water suction hopper device capable of achieving low-liquid-level operation

Abstract

The utility model relates to the technical field of cooling tower equipment, in particular to a water suction hopper device capable of realizing low-liquid-level operation, which comprises a mounting plate, a water suction hopper body, an exhaust valve, a filter screen and a water suction port flange, the mounting plate is arranged on one side of the water suction hopper body, and the mounting plate and a water collecting tank of a cooling tower are mutually fixed; an exhaust valve is arranged at the top of the water suction hopper body, and filter screens are arranged on the two sides of the water suction hopper body. The water suction port flange is arranged on the mounting plate, and the water suction port flange is communicated with the interior of the water suction hopper body; according to the low-liquid-level circulating pump, opening and closing of the exhaust valve are matched with water supply of the water collecting tank, so that a full liquid state is formed in the water suction hopper, the problem of instantaneous air suction when the circulating pump is started is avoided after the circulating pump is started, and normal water suction operation of the low-liquid-level circulating pump can be realized when the liquid level of the water collecting tank is low; the device has the characteristics of simple structure, convenient installation, stable operation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling tower equipment, in particular to a water suction bucket device capable of realizing low liquid level operation. Background Art

[0002] With the continuous expansion of industrial production scale, the demand for large-flow cooling tower equipment is also growing. Usually, the outlet pipe diameter of large-flow cooling tower is large (≥DN350). In order to achieve the normal operation of the cooling circulating water pump of the large-flow cooling tower, the cooling tower water collection tank often adopts the method of increasing the height of the water collection tank or changing the cooling tower outlet to the bottom of the water collection tank to avoid the circulation pump from sucking air and causing circulation pump cavitation and other faults.

[0003] Increasing the height of the water collection tank will increase the manufacturing cost of the cooling tower equipment. Generally, due to the large size of the large-flow cooling tower, the manufacturing cost pressure brought by increasing the water collection tank will be greater and relatively meaningless. At the same time, the large-capacity water collection tank will also increase the operating weight of the cooling tower, thereby placing higher requirements on the installation foundation of the cooling tower equipment. In addition, the large-capacity water collection tank will also increase the cost of adding chemicals and sewage discharge, and there are certain safety hazards in the production process.

[0004] Changing the outlet of the cooling tower to the bottom of the sump can reduce the above adverse effects, but it will cause the circulating water in the cooling tower sump to be unable to be discharged normally. Long-term operation will cause damage to the circulating pump and main equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a water suction bucket device capable of realizing low liquid level operation, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water suction hopper device capable of realizing low liquid level operation, comprising a mounting plate, a water suction hopper body, an exhaust valve, a filter screen and a water suction port flange, wherein a mounting plate is arranged on one side of the water suction hopper body, and the mounting plate and the water collecting trough of the cooling tower are fixed to each other; an exhaust valve is arranged on the top of the water suction hopper body, and a filter screen is arranged on both sides of the water suction hopper body; the water suction port flange is arranged on the mounting plate, and the water suction port flange is communicated with the inside of the water suction hopper body.

[0007] Preferably, the cross-section of the water suction bucket body is a right-angled trapezoidal structure, with an inclined upper surface, a vertically arranged side surface, and a horizontally arranged lower surface; the mounting plate is on the inclined upper side, and the exhaust valve is arranged at a position close to the mounting plate.

[0008] Preferably, the bottoms of both sides of the water suction bucket body are set as hollow structures, the filter screen is an overall square structure, and the filter screen frame is connected to the water suction bucket body by screws, and the filter screen is covered on the outside of the area corresponding to the hollow structure.

[0009] Preferably, the water suction port flange is welded at the middle position of the mounting plate, and the mounting plate and the water suction bucket body are fully welded; the mounting plate is configured as a square plate, and mounting bolts are provided on the peripheral side of the mounting plate to fix it to the side plate of the cooling tower water collection tank.

[0010] Preferably, the exhaust valve is a rotary exhaust valve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model utilizes the opening and closing of the exhaust valve to cooperate with the water supply of the sump to form a full liquid state in the water suction bucket, thereby avoiding the problem of instantaneous empty suction when the circulating pump is started after starting the circulating pump, and at the same time, the normal water suction operation of the low liquid level circulating pump can be achieved when the liquid level in the sump is low; it has the characteristics of simple structure, easy installation, stable operation, etc., and can achieve normal operation of the circulating pump when the liquid level in the cooling tower sump is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Numbers in the figure: 1. Mounting plate; 2. Suction hopper body; 3. Exhaust valve; 4. Filter screen; 5. Suction port flange; 6. Mounting bolts. DETAILED DESCRIPTION

[0014] 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 in 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.

[0015] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1 The utility model provides a technical solution: a water suction bucket device capable of realizing low liquid level operation, comprising a mounting plate 1, a water suction bucket body 2, an exhaust valve 3, a filter screen 4 and a water suction port flange 5, wherein a mounting plate 1 is arranged on one side of the water suction bucket body 2, and the mounting plate 1 and the water collecting tank of the cooling tower are fixed to each other; an exhaust valve 3 is arranged on the top of the water suction bucket body 2, and a filter screen 4 is arranged on both sides of the water suction bucket body 2; the water suction port flange 5 is arranged on the mounting plate 1, and the water suction port flange 5 is communicated with the inside of the water suction bucket body 2.

[0018] Furthermore, the cross-section of the water suction bucket body 2 is a right-angled trapezoidal structure, with an inclined upper surface, a vertically arranged side surface, and a horizontally arranged lower surface; the mounting plate 1 is on the inclined upper side, and the exhaust valve 3 is arranged at a position close to the mounting plate 1.

[0019] Furthermore, the bottoms of both sides of the water suction bucket body 2 are set as hollow structures, the filter screen 4 is an overall square structure, and the mesh frame of the filter screen 4 is connected to the water suction bucket body 2 by screws, and the filter screen 4 is covered on the outside of the area corresponding to the hollow structure.

[0020] Furthermore, the water suction port flange 5 is welded at the middle position of the mounting plate 1, and the mounting plate 1 and the water suction bucket body 2 are fully welded; the mounting plate 1 is configured as a square plate, and mounting bolts 6 are provided on the peripheral side of the mounting plate 1 to fix it to the side plate of the cooling tower water collection tank.

[0021] Furthermore, the exhaust valve 3 is a rotary exhaust valve.

[0022] Working principle: the mounting plate 1 and the water suction bucket body 2 are fully welded, and the mounting bolts 6 are arranged on the peripheral side of the mounting plate 1 to fix it to the side plate of the cooling tower water collection tank; the bottoms on both sides of the water suction bucket body 2 are arranged as hollow structures, and the hollow structures are covered by the filter net 4 on the outside, so that the water suction bucket body 2 plays a filtering role when water enters and exits from the side; the cross-section of the water suction bucket body 2 is a right-angled trapezoidal structure, and the exhaust valve 3 is arranged at a higher position on the upper part of the water suction bucket body 2; this position enables the water suction bucket body 2 to contain more water when the exhaust valve 3 is exhausting.

[0023] Before the circulating pump is started, the device opens the exhaust valve 3, and then supplies water to the water collection tank, so that the water level is higher than the water suction bucket body 2, and the air in the water suction bucket body 2 is completely exhausted. Then the exhaust valve 3 is closed to form a full liquid state in the water suction bucket body 2; at this time, the circulating pump is started to avoid the problem of instantaneous air suction when the circulating pump is started, and at the same time, the low-liquid-level circulating pump can be operated normally when the liquid level in the water collection tank is low.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water suction bucket device capable of realizing low liquid level operation, Features: The invention comprises a mounting plate (1), a water suction hopper body (2), an exhaust valve (3), a filter screen (4) and a water suction port flange (5); a mounting plate (1) is arranged on one side of the water suction hopper body (2); the mounting plate (1) and the water collecting tank of the cooling tower are fixed to each other; an exhaust valve (3) is arranged on the top of the water suction hopper body (2); and filter screens (4) are arranged on both sides of the water suction hopper body (2); the water suction port flange (5) is arranged on the mounting plate (1), and the water suction port flange (5) is connected to the inside of the water suction hopper body (2).

2. A water suction bucket device capable of realizing low liquid level operation according to claim 1, Features: The cross section of the water suction bucket body (2) is a right-angled trapezoidal structure, with an upper surface arranged obliquely, a side surface arranged vertically, and a lower surface arranged horizontally; the mounting plate (1) is located on the upper side of the inclination, and the exhaust valve (3) is arranged at a position close to the mounting plate (1).

3. A water suction bucket device capable of realizing low liquid level operation according to claim 1, Features: The bottoms of both sides of the water suction bucket body (2) are arranged as hollow structures, the filter screen (4) is in an overall square structure, and the screen frame of the filter screen (4) is connected to the water suction bucket body (2) by screws, and the filter screen (4) is covered on the outside of the area corresponding to the hollow structure.

4. A water suction bucket device capable of realizing low liquid level operation according to claim 1, Features: The water inlet flange (5) is welded to the middle position of the mounting plate (1), and the mounting plate (1) and the water suction bucket body (2) are fully welded; the mounting plate (1) is configured as a square plate, and mounting bolts (6) are provided on the peripheral side of the mounting plate (1) to be fixed to the side plate of the cooling tower water collecting trough.

5. A water suction bucket device capable of realizing low liquid level operation according to claim 1, Features: The exhaust valve (3) is a rotary exhaust valve.

Images