A special pump for horizontal cooling tower

Abstract

The utility model provides a special pump for a horizontal cooling tower, including a motor device and a pump body assembly connected to the output end of the motor device, wherein a folding plate base is provided at the bottom of the motor device; a pump body foot is provided at the bottom of the pump body assembly, and an automatic exhaust valve is provided on the pump body assembly. After the automatic exhaust valve is provided, whenever the pressure reaches the system pressure threshold, the exhaust will be automatically performed, thereby ensuring the stable operation of the pump body and avoiding abnormal operation of the pump body. Considering that the structures of the motor and the pump are different, the contact areas that can be fixed are also different, and the vibration frequencies and vibration directions during operation are different, the two are fixed separately.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid machinery, in particular to a special cooling tower pump for a circulating cooling tower. Background Art

[0002] With the progress and development of society, cooling towers are used in more and more places. Cooling towers mainly cool by circulating coolant. At present, the country is vigorously building a resource-saving and environmentally friendly society. Therefore, higher and higher requirements are put forward for cooling tower equipment specially used in the cooling field, such as reducing energy consumption and reducing coolant leakage.

[0003] At present, the pumps used in cooling tower equipment on the market are mainly special pumps for horizontal cooling towers. However, these special pumps for horizontal cooling towers do not have separate feet on the pump body to support it, or the motor and pump body are set on a unified base, and there is no mechanism for automatic exhaust. As a result, the current special pumps for horizontal cooling towers have poor stability and high vibration during operation, resulting in low reliability of the equipment. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a special pump for a horizontal cooling tower which can support a pump body and a motor separately and independently and can automatically exhaust air.

[0005] In order to solve the above technical problems, the utility model provides a special pump for a horizontal cooling tower, including a motor device and a pump body assembly connected to the output end of the motor device, a folding plate base is arranged at the bottom of the motor device; a pump body foot is arranged at the bottom of the pump body assembly, and an automatic exhaust valve is arranged on the pump body assembly.

[0006] According to the scheme, when there is pressure inside the pump body, the exhaust valve will continuously exhaust air, avoiding the occurrence of steam binding. Since the pump body of the horizontal cooling tower special pump is provided with a pump body foot, a folding plate base is specially designed for the motor to make its operation more stable. Before starting the horizontal cooling tower special pump, water needs to be poured into the coolant transport pipeline and the pump to promote the discharge of gas or residual liquid inside the pipeline and the pump. However, the gas inside the pump will gather at a high place in the pump body assembly. After the automatic exhaust valve is set, whenever the system is under pressure, it will automatically exhaust air, thereby ensuring the stable operation of the pump and avoiding abnormal operation of the pump due to the lack of an exhaust valve or untimely manual exhaust. Considering the different structures of the motor and the pump, the fixed contact area is also different, and the vibration frequency and vibration direction during operation are different, so the two are fixed separately. By setting a folding plate base under the motor device, the contact area between the motor and the base is increased. When the motor is running, it can be better fixed to reduce the impact of motor vibration. Due to the structural characteristics of the pump body, a pair of pump body feet are set on both sides, which can also better fix the pump. The reliability of the entire horizontal cooling tower special pump is improved through the design of automatic exhaust valve, pump body feet and folding plate base.

[0007] The pump body assembly includes a pump shaft assembly, a pump head assembly, a pump body and an impeller assembly. One end of the pump head assembly is fixedly connected to the motor device, and the other end of the pump head assembly is fixedly connected to the pump body; one end of the pump shaft assembly is connected to the output shaft of the motor device, and the other end of the pump shaft assembly passes through the pump head assembly and penetrates into the pump body, and is fixedly connected to the impeller assembly.

[0008] A flat key component is arranged at one end of the pump shaft assembly that penetrates into the pump body, and the impeller assembly is fixedly connected to the flat key component via a nut.

[0009] A sealing assembly is arranged between the pump shaft assembly and the pump head assembly.

[0010] The pump body and the pump head assembly are fixedly connected by bolts, and an O-ring is provided at the connection between the pump body and the pump head assembly.

[0011] One end of the pump shaft assembly away from the impeller assembly is a sleeve structure, and the pump shaft assembly is sleeve-connected with the output shaft of the motor device through the sleeve structure.

[0012] The pump body foot is an integrated structure, one end of the pump body foot is fixed on the pump body, and the other end is fixed on the ground.

[0013] The pump body foot is a split structure, including a pump body foot pump body end and a pump body foot ground end. The pump body foot pump body end is a solid structure with a hollow middle, and the pump body foot ground end is a hollow structure with an open groove. The pump body foot pump body end is inside the pump body foot ground end, and the two are fixed by bolts.

[0014] The pump body foot is a split structure, including an upper part of the pump body foot and a lower part of the pump body foot. The upper part of the pump body foot and the lower part of the pump body foot are solid structures with a hollow middle, and the two are fixed by bolts.

[0015] By splitting the pump body foot design, the installation height of the pump body can be fine-tuned on an uneven installation ground, so that it can be better fixed to the ground and cooperate with the motor device, further improving the reliability of the special pump for horizontal cooling towers.

[0016] The folding plate base is a "X"-shaped structure, and a triangular fixing device is arranged between the two sides perpendicular to the ground and the top.

[0017] This design can improve the vibration resistance of the folded plate base based on the stability principle of the triangle, thereby improving the stability of the folded plate base and improving the reliability of the dedicated pump for the horizontal cooling tower.

[0018] The folding plate base and / or the pump body foot are / is fixed to the ground with holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall schematic diagram of the special pump for horizontal cooling tower;

[0020] Figure 2 This is a schematic diagram of the appearance of the pump body of a special pump for a horizontal cooling tower;

[0021] Figure 3 This is a schematic diagram of the first type of folding plate base;

[0022] Figure 4 It is a schematic diagram of the first type of split pump body footing;

[0023] Figure 5 It is a schematic diagram of the second type of split pump body foot;

[0024] Figure 6 is a schematic diagram of the second folding plate base. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the present invention, the following Figures 1 to 6 , a special pump for horizontal cooling tower of the utility model is further described in detail.

[0026] like Figure 1As shown, the dedicated pump for horizontal cooling towers in an embodiment of the utility model includes a pump body assembly, and the pump body assembly includes a pump shaft assembly 9, a pump head assembly 8, a pump body 1 and an impeller assembly 3. The pump body 1 is hollow inside and accommodates a rotatable impeller assembly 3. The impeller assembly 3 is fixed to a flat key component 5 in a vertical direction to the impeller assembly 3 through an impeller nut 2 at its center position. The flat key component 5 is arranged at one end of the pump shaft assembly 9 of the dedicated pump for horizontal cooling towers away from the motor.

[0027] The pump shaft assembly 9 is connected to the pump body 1 and the pump head assembly 8 through the mechanical seal device 6, which not only ensures the rotation of the pump shaft assembly 9, but also ensures that the liquid in the pump body 1 will not penetrate out. An O-ring 7 is arranged between the pump head assembly 8 and the pump body 1, and bolts are arranged between the pump head assembly 8 and the pump body 1 to fix the two together, which plays a good sealing role and isolates the liquid in the pump body 1 from entering the pump head assembly 8.

[0028] The pump head assembly 8 is fixedly connected to the motor device 10 by bolts, and the pump shaft assembly 9 is in a vertical position relationship with the pump body and is connected to the motor device 10 through the center position of the side opposite to the impeller assembly 3. A sleeve structure is provided on the side where the motor device 10 is connected to the pump head assembly 8, and the pump shaft assembly 9 is fixedly connected to the sleeve structure.

[0029] After the motor device 10 is powered on, the rotation of the sleeve structure of the motor device 10 will drive the pump shaft assembly 9, thereby driving the rotation of the impeller assembly 3 to realize the function of the pump.

[0030] An automatic exhaust valve 4 is provided at the top of the pump body 1 away from the ground. Before the dedicated pump for horizontal cooling tower is started, water needs to be poured into the pipe outside the pump and the pump body 1. The outlet of the dedicated horizontal cooling tower pump is a side-outlet structure. When the system is full of water, the gas in the water will gather at a high place in the pump body 1. If the gas is not exhausted in time, the pump will not work normally due to the gas binding phenomenon. After the automatic exhaust valve 4 (such as ZP88) is set, as long as the system has pressure, the gas in the exhaust valve will gather at the upper part of the automatic exhaust valve at this time. The accumulation of bubbles causes the float to drop with the water level, so the automatic exhaust valve opens the exhaust piston to exhaust; after the gas is exhausted. When the gas in the pump is exhausted, due to the rise in water level, the float in the automatic exhaust valve also rises, thereby closing the exhaust piston and keeping the pump body 1 running.

[0031] A separate pump body foot 12 is provided at the bottom of the pump body 1 and the automatic exhaust valve 4. The pump body foot 12 is fixedly connected to the pump body 1. A plurality of holes are provided on the side of the pump body foot 12 opposite to the pump body 1 to facilitate fixing to the ground. The pump body foot 12 is provided with two reinforcing ribs in a vertical direction with the pump body, and a non-hollow metal is provided between the two reinforcing ribs. A triangular metal plate with an arc-shaped side is also provided on the outside to be fixedly connected to the reinforcing ribs and the pump body, so as to improve the stability of the pump body foot 12.

[0032] The lower part of the motor device 10 is fixedly connected with a "J"-shaped folding plate base 11, and a screw hole is provided on the side of the folding plate base 11 opposite to the motor device 10, and a hole is provided on one side of the pump body foot 12, both of which are used for fixing to the ground.

[0033] Figure 4 Yes Figure 2 A schematic diagram of a split pump body foot after the improvement of the pump body foot of a special pump for a horizontal cooling tower, the pump body foot 12 includes a pump body foot pump body end 121 and a pump body foot ground end 122, wherein the pump body foot pump body end 121 is fixedly connected to the pump body 1, the pump body foot pump body end 121 is inserted into the empty groove of the pump body foot ground end 122, the pump body foot pump body end 121 is a hollow structure, and the outer side of the pump body foot ground end 122 is provided with an opening, so that the screws can enter the pump body foot pump body end 121 from one side of the pump body foot ground end 122, pass through from the other side of the pump body foot ground end 122, and fix the pump body foot ground end 122 to the pump body foot pump body end 121, and the part where the pump body foot ground end 122 is fixedly connected to the ground is provided with a hole.

[0034] Figure 5 Yes Figure 2 A schematic diagram of another split pump body foot after the pump body foot 12 of a special pump for a horizontal cooling tower is improved, the pump body foot 12 includes an upper pump body foot 123 and a lower pump body foot 124, wherein the upper pump body foot 123 is fixedly connected to the pump body 1, the middle of the upper pump body foot 123 is hollowed out, the middle of the lower pump body foot 124 is also hollowed out, the upper pump body foot 123 and the lower pump body foot 124 are fixedly connected by bolts, and the part where the lower pump body foot 124 is fixedly connected to the ground is provided with holes.

[0035] Figure 6 It is a schematic diagram of a further improvement on the folding plate base 11 of a special pump for a horizontal cooling tower. A triangular fixing device 111 is provided on the side of the folding plate base 11 opposite to the top surface where the folding plate base 11 and the motor are fixed, so as to further reinforce the folding plate base 11.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special pump for a horizontal cooling tower, comprising a motor device (10) and a pump body assembly connected to the output end of the motor device (10), characterized in that: A folding plate base (11) is provided at the bottom of the motor device (10); a pump body foot (12) is provided at the bottom of the pump body assembly, and an automatic exhaust valve (4) is provided on the pump body assembly.

2. The horizontal cooling tower dedicated pump according to claim 1, characterized in that: The pump body assembly comprises a pump shaft assembly (9), a pump head assembly (8), a pump body (1) and an impeller assembly (3); one end of the pump head assembly (8) is fixedly connected to the motor device (10), and the other end of the pump head assembly (8) is fixedly connected to the pump body (1); one end of the pump shaft assembly (9) is connected to the output shaft of the motor device (10), and the other end of the pump shaft assembly (9) passes through the pump head assembly (8) and penetrates into the pump body (1), and is fixedly connected to the impeller assembly (3).

3. The horizontal cooling tower dedicated pump according to claim 2, characterized in that: A flat key component (5) is provided at one end of the pump shaft assembly (9) that penetrates into the pump body (1), and the impeller assembly (3) is fixedly connected to the flat key component (5) via a nut (2).

4. The horizontal cooling tower dedicated pump according to claim 2, characterized in that: A sealing assembly (6) is provided between the pump shaft assembly (9) and the pump head assembly (8).

5. The horizontal cooling tower dedicated pump according to claim 2, characterized in that: The pump body (1) and the pump head assembly (8) are fixedly connected by bolts, and an O-type sealing ring (7) is provided at the connection between the pump body (1) and the pump head assembly (8).

6. The horizontal cooling tower dedicated pump according to claim 3, characterized in that: One end of the pump shaft assembly (9) away from the impeller assembly (3) is a sleeve structure, and the pump shaft assembly (9) is sleeve-connected to the output shaft of the motor device (10) via the sleeve structure.

7. The horizontal cooling tower dedicated pump according to claim 2, characterized in that: The pump body foot (12) is an integrated structure, one end of the pump body foot (12) is fixed on the pump body (1), and the other end is fixed on the ground.

8. The horizontal cooling tower dedicated pump according to claim 7, characterized in that: The pump body foot (12) is a split structure, comprising a pump body foot pump body end (121) and a pump body foot ground end (122); the pump body foot pump body end (121) is a solid structure with a hollow middle, and the pump body foot ground end (122) is a hollow structure with an open groove; the pump body foot pump body end (121) is inside the pump body foot ground end (122), and the two are fixed by bolts.

9. The horizontal cooling tower dedicated pump according to claim 7, characterized in that: The pump body foot (12) is a split structure, comprising an upper part (123) of the pump body foot and a lower part (124) of the pump body foot. The upper part (123) of the pump body foot and the lower part (124) of the pump body foot are solid structures with a hollow middle, and the two are fixed by bolts.

10. The dedicated pump for horizontal cooling tower according to claim 1, characterized in that: The folding plate base (11) is a "X"-shaped structure, with triangular fixing devices (111) arranged between the two sides perpendicular to the ground and the top.

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