Axial flow water pump for conveying cooling water of cooling tower
By designing axial flow water pump without shaft propeller and shut-off valve in the cooling water circulation system of the cooling tower, the problem of slow flow rate or backflow caused by long pipes is solved, and the cleanliness of water quality is ensured through the filter, achieving efficient cooling Water transport and equipment operation.
Patent Information
- Application Number
- CN202421229192.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the cooling water circulation system of existing cooling towers, long pipelines cause too slow flow or backflow, and the water quality becomes worse, affecting the equipment efficiency.
An axial flow water pump for conveying cooling water of the cooling tower is designed, and a shaftless propeller is used to push, and a shut-off valve and a filter are provided in the cut-off chamber to prevent backflow and impurities from entering.
It effectively ensures the flow rate of the water flow, prevents backflow and impurities from entering, and ensures the cleanliness of the cooling water and the efficient operation of the equipment.
Smart Images
Figure CN222502085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cooling tower auxiliary component product series, in particular to an axial flow water pump used for conveying cooling water of a cooling tower. Background Art
[0002] In the cooling water circulation system of the existing open cooling tower, when the existing traditional cooling water pump is used to transport cooling water to the equipment in the computer room, the system pipeline channel is too long and the resistance becomes large, resulting in a slow flow rate or even backflow. At the same time, the circulating water is directly evaporated when passing through the heat exchange device (wet film / filler). During the contact process, impurities in the outdoor air will be brought into the water tank by the water, causing the water quality to deteriorate. After a long period of use, dirt and impurities will be generated, affecting the efficiency of the equipment in the computer room. Summary of the invention
[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an axial flow water pump for conveying cooling water of a cooling tower, which conveys the cold water of the cooling tower, prevents the cooling water from flowing back through a cut-off structure, and filters the cooling water at the same time, thereby solving the problems of unclean cooling water and diversion and reflux.
[0004] The technical solution of the implementation case of the utility model is as follows:
[0005] An axial flow water pump for conveying cooling water for a cooling tower, the axial flow water pump comprising a housing, a stator assembly, a rotor assembly, a shaftless propeller, and a stop valve, the outer peripheral end of the shaftless propeller being fixedly connected to the inner wall of the rotor assembly, the housing comprising an inlet pipe, an outlet pipe, and a power chamber, the inlet end of the power chamber being connected to the inlet pipe, the outlet end of the power chamber being connected to the outlet pipe, the power chamber comprising a stator assembly fixed chamber, a rotor assembly rotating chamber, a liquid pumping chamber, and a stop chamber, the stator assembly being fixedly placed The stator component is in a fixed cavity, the rotor component is in a fixed cavity of the rotor component, the shaftless propeller is in the liquid pumping cavity, the stop valve is fixed in the stop cavity, the stator component fixed cavity is located on both sides of the rotor component rotating cavity, the liquid pumping cavity is located in an inner ring of the rotor component rotating cavity, the water outlet end of the stop cavity is connected to the water inlet end of the liquid pumping cavity, the water inlet end of the stop cavity is connected to the water inlet pipe, and the water outlet end of the liquid pumping cavity is connected to the water outlet pipe.
[0006] Preferably, it further comprises a filter screen, which is installed at the water inlet port of the cut-off chamber. The cut-off chamber and the water inlet pipe form a sewage discharge groove, and the bottom of the sewage discharge groove has a sewage discharge port.
[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a shaftless propeller to push the cooling water without a shaft, the water flow rate in the pipeline can be effectively guaranteed, and the problems of small flow rate and empty pipe can be avoided; by setting a cut-off chamber connected to the water inlet pipe, and then by setting a cut-off valve in the cut-off chamber, the cooling water can be effectively prevented from flowing back, and the water source of the axial flow water pump during maintenance can be prevented from flowing back into the water pump, which makes the maintenance of the axial flow water pump difficult; by setting a filter net at the entrance of the cut-off chamber, the cooling water is filtered before entering the axial flow water pump, and at the same time, through the sewage groove formed between the cut-off chamber and the water inlet pipe, impurities are gathered in the sewage groove and discharged through the sewage outlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a cross-sectional schematic diagram of an axial flow water pump for conveying cooling water for a cooling tower in the utility model;
[0009] Figure 2 It is a cross-sectional schematic diagram of a shell of an axial flow water pump for conveying cooling water for a cooling tower in the utility model;
[0010] 10. Shell; 11. Water inlet pipe; 12. Power chamber; 13. Water outlet pipe; 14. Stator assembly fixed chamber; 15. Rotor assembly rotating chamber; 16. Liquid pumping chamber; 17. Stop chamber; 18. Drain groove; 19. Drain port; 20. Stator assembly; 30. Rotor assembly; 40. Shaftless propeller; 50. Stop valve; 60. Filter. DETAILED DESCRIPTION
[0011] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0012] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0014] like Figure 1 , Figure 2 As shown, Figure 1 It is a cross-sectional schematic diagram of an axial flow water pump for conveying cooling water for a cooling tower in the utility model; Figure 2 The utility model is a cross-sectional schematic diagram of a shell in an axial flow water pump for conveying cooling water for a cooling tower; an axial flow water pump for conveying cooling water for a cooling tower, the axial flow water pump comprising a shell 10, a stator assembly 20, a rotor assembly 30, a shaftless propeller 40, and a stop valve 50, the outer peripheral end of the shaftless propeller 40 is fixedly connected to the inner wall of the rotor assembly 30, the shell 10 comprises an inlet pipe 11, an outlet pipe 13 and a power chamber 12, the inlet end of the power chamber 12 is connected to the inlet pipe 11, the outlet end of the power chamber 12 is connected to the outlet pipe 13, the power chamber 12 comprises a stator assembly fixed chamber 14, a rotor assembly rotating chamber 15, a liquid pumping chamber 16, and a liquid pumping chamber 17. The stator assembly 20 is fixedly placed in the stator assembly fixed cavity 14, the rotor assembly 30 is located in the rotor assembly fixed cavity 15, the shaftless propeller 40 is located in the liquid pumping cavity 16, the stop valve 50 is fixedly placed in the stop cavity 17, the stator assembly fixed cavity 14 is located on both sides of the rotor assembly rotating cavity 15, the liquid pumping cavity 16 is located in the inner ring of the rotor assembly rotating cavity 15, the water outlet end of the stop cavity 17 is connected with the water inlet end of the liquid pumping cavity 16, the water inlet end of the stop cavity 17 is connected with the water inlet pipe 11, and the water outlet end of the liquid pumping cavity 16 is connected with the water outlet pipe 13.
[0015] After the axial flow water pump is powered on, the stator assembly generates magnetic flux, and the magnetic force drives the rotor assembly to rotate, driving the shaftless propeller to rotate. The shaftless propeller draws external cooling water into the liquid pumping chamber through the water inlet pipe and the cut-off chamber, and pushes it to the water outlet pipe for transportation through the rotation of the shaftless propeller. Compared with the shaft propeller, the shaftless propeller greatly reduces the water flow resistance, can effectively increase the thrust of the water flow, ensures the water flow rate of the pipeline, and avoids the problems of small flow and empty pipe in the pipeline. At the same time, when the axial flow water pump stops running, the cooling water in the pipeline may flow back into the water pump, which will make the axial flow water pump difficult to repair. The utility model is provided with a cut-off chamber on the shell, which forms a water passage with the water inlet pipe, and a cut-off valve is arranged in the cut-off chamber. Under the suction of the shaftless propeller, water with a certain water pressure enters the liquid pumping chamber through the water passage and the cut-off valve. When the axial flow water pump stops running, the cooling water in the pipeline cannot pass through the reflux port of the cut-off valve due to its insufficient water pressure, thereby avoiding the cooling water in the pipeline from flowing back into the cooling tower.
[0016] In order to ensure the cleanliness of the cooling water delivered to the equipment in the machine room, preferably, a filter screen 60 is also included, and the filter screen 60 is installed at the water inlet port of the cut-off chamber 17. The cut-off chamber 17 and the water inlet pipe 11 form a sewage groove 18, and the bottom of the sewage groove has a sewage outlet 19.
[0017] The entire axial flow water pump is divided into a muddy water area and a clear water area. The muddy water area and the clear water area are isolated by a stainless steel filter. When the dusty water outside flows to the axial flow water pump, a stainless steel filter is installed at the inlet of the axial flow water pump and a circle of drainage grooves is set next to it. When water flows into the axial flow water pump, it first passes through the filter to slow down the speed of the water flow; through the inclined filter, most of the impurities flow down along the inclined filter, leaving the surrounding drainage grooves. A small part of the dust will be attached to the isolated stainless steel filter along the direction of the water flow. The filter structure can effectively block the impurities in the muddy water and ensure the quality of the water source delivered to the machine room.
[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a shaftless propeller to push the cooling water without a shaft, the water flow rate in the pipeline can be effectively guaranteed, and the problems of small flow rate and empty pipe can be avoided; by setting a cut-off chamber connected to the water inlet pipe, and then by setting a cut-off valve in the cut-off chamber, the cooling water can be effectively prevented from flowing back, and the water source of the axial flow water pump during maintenance can be prevented from flowing back into the water pump, which makes the maintenance of the axial flow water pump difficult; by setting a filter net at the entrance of the cut-off chamber, the cooling water is filtered before entering the axial flow water pump, and at the same time, through the sewage groove formed between the cut-off chamber and the water inlet pipe, impurities are gathered in the sewage groove and discharged through the sewage outlet.
[0019] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0020] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An axial flow water pump for conveying cooling water in a cooling tower, characterized in that: The axial flow water pump comprises a shell, a stator assembly, a rotor assembly, a shaftless propeller, and a stop valve. The outer peripheral end of the shaftless propeller is fixedly connected to the inner wall of the rotor assembly. The shell comprises an inlet pipe, an outlet pipe and a power chamber. The inlet end of the power chamber is communicated with the inlet pipe, and the outlet end of the power chamber is communicated with the outlet pipe. The power chamber comprises a stator assembly fixed chamber, a rotor assembly rotating chamber, a liquid pumping chamber, and a stop chamber. The stator assembly is fixedly placed in the stator assembly fixed chamber, the rotor assembly is located in the rotor assembly fixed chamber, the shaftless propeller is located in the liquid pumping chamber, the stop valve is fixedly placed in the stop chamber, the stator assembly fixed chamber is located on both sides of the rotor assembly rotating chamber, the liquid pumping chamber is located in the inner ring of the rotor assembly rotating chamber, the outlet end of the stop chamber is communicated with the inlet end of the liquid pumping chamber, the inlet end of the stop chamber is communicated with the inlet pipe, and the outlet end of the liquid pumping chamber is communicated with the outlet pipe.
2. The axial flow water pump according to claim 1, characterized in that: It also includes a filter screen, which is installed at the water inlet port of the cut-off chamber. The cut-off chamber and the water inlet pipe form a sewage discharge groove, and the bottom of the sewage discharge groove is provided with a sewage discharge port.