Efficient intelligent circulating water pump station capable of supplying power externally

Abstract

The utility model relates to a circulating water pump station, in particular to an efficient intelligent circulating water pump station capable of supplying power externally, which comprises a motor circulating pump and a diesel generator pump which are arranged in parallel through a connecting pipeline, and the diesel generator pump comprises a diesel engine circulating pump head, a generator and a diesel engine which are coaxially arranged. The diesel engine is in transmission connection with the diesel engine circulating pump head and the generator so as to provide power for the diesel engine circulating pump head and the generator. According to the utility model, the diesel generator pump can be quickly switched under the emergency conditions such as power failure in a factory, so that uninterrupted power is provided for a circulating water system, emergency electric power is transmitted to the outside, the stable operation of key equipment is ensured, and the advantages of safety and intelligence of the technical scheme are fully embodied.

Description

Technical Field

[0001] This utility model relates to a circulating water pumping station, and more particularly to a high-efficiency intelligent circulating water pumping station that can be powered externally. Background Technology

[0002] In industrial production processes, forced circulation technology, as a highly efficient method for driving water circulation systems, is widely used in various equipment such as boilers, steel rolling heating furnaces, and cold rolling annealing furnaces. This technology uses power provided by a circulating pump to overcome flow resistance in the water circulation system, thereby ensuring stable water circulation. Forced circulation technology has significant advantages such as flexible layout, stable circulation, and strong load adaptability, making it crucial for improving the operating efficiency and stability of industrial equipment.

[0003] Forced circulation requires a circulation pump to provide driving force, and the operational stability of the circulation pump affects the safety of the entire system. However, the configuration of circulation pumps in existing forced circulation systems has many shortcomings. To ensure continuous and stable system operation, in addition to the main circulation pump (usually driven by an electric motor), a backup electric circulation pump is typically also provided. In plant areas with the risk of power outages, it is even more necessary to add a diesel engine circulation pump or a diesel generator as a backup power source during power outages. The main circulation pump and the backup circulation pump are interlocked and controlled through the plant's DSC or PLC system. While this multi-configuration approach improves system reliability to some extent, it also introduces many problems.

[0004] First, from a safety perspective, electric circulating pumps, diesel engine circulating pumps, or diesel generators require control via a DSC (Distributed Control System) or a remote PLC (Programmable Logic Controller). Such control systems are relatively complex, involve long signal transmission distances, and are prone to frequent malfunctions, thus affecting the overall safety of the system.

[0005] Secondly, from an investment cost perspective, since electric circulating pumps, diesel circulating pumps, or diesel generators need to transmit signals to a remote control room, a large number of electrical components such as cables are required, which undoubtedly increases the system's investment cost. At the same time, the maintenance and upkeep of these devices also require certain expenses.

[0006] Furthermore, from an energy-saving perspective, existing electric circulating pumps often employ fixed-frequency control. When the load demand of the circulating water system changes, the electric circulating pump cannot adjust its operating status according to the actual demand, resulting in significant energy waste.

[0007] Finally, the existing circulation system cannot provide power when a power outage occurs within the plant area. This necessitates the installation of additional equipment such as diesel engine feedwater pumps to ensure the continuous operation of the circulating water system, further increasing the system's investment costs and floor space requirements.

[0008] Therefore, there is an urgent need for a safer, more economical, energy-efficient forced circulation system with power output capabilities to overcome the shortcomings of existing technologies. Utility Model Content

[0009] In view of this, the purpose of this utility model is to provide an externally powered, high-efficiency, intelligent circulating water pump station to increase the safety of the circulating water pump station, save investment and operating costs, and provide power for other auxiliary equipment.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] An externally powered, high-efficiency intelligent circulating water pump station includes an electric motor circulating pump and a diesel generator pump arranged in parallel via connecting pipes. The diesel generator pump includes a diesel engine circulating pump head, a generator, and a diesel engine arranged coaxially. The diesel engine is drivenly connected to the diesel engine circulating pump head and the generator respectively to provide power to the diesel engine circulating pump head and the generator.

[0012] Furthermore, it also includes a control cabinet, which is connected to the diesel engine, generator, and electric motor circulation pump via cables to control the operation of the diesel engine and electric motor circulation pump, and to receive power from the generator.

[0013] Furthermore, the control cabinet is equipped with cables for connecting to the outside to transmit power.

[0014] Furthermore, a first pressure gauge is installed at the inlet of the connecting pipe to monitor the inlet pressure of the water pump station; a second pressure gauge and a flow meter are installed at the outlet of the connecting pipe to monitor the outlet pressure and flow of the water pump station, and a regulating valve is installed at the outlet to regulate the flow rate of the circulating water sent out by the water pump station.

[0015] Furthermore, the control cabinet is also connected to the first pressure gauge, the second pressure gauge, the flow meter, and the regulating valve via cables, receiving information from the first pressure gauge, the second pressure gauge, and the flow meter to control the diesel engine and the regulating valve.

[0016] Furthermore, the electric motor circulating pump is a variable frequency pump, which can be frequency-controlled according to the load requirements of the circulating water system to achieve energy saving.

[0017] Furthermore, the electric motor circulation pump includes a first electric motor circulation pump and a second electric motor circulation pump, which are arranged in parallel through connecting pipes, with one operating and the other on standby.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention achieves efficient and safe operation of a circulating water pumping station through innovative design. Its core lies in the parallel arrangement of an electric motor circulating pump and a diesel generator pump, and the coaxial arrangement of the diesel engine circulating pump head, generator, and diesel engine within the diesel generator pump. This unique structure optimizes power transmission and power supply efficiency, significantly improving system performance. The introduction of the control cabinet is another major highlight. Through real-time monitoring and adjustment, it ensures that the system can quickly switch to the diesel generator pump in the event of a power outage or other emergency situation in the plant area. This provides uninterrupted power to the circulating water system and also supplies emergency power, ensuring the stable operation of critical equipment and fully demonstrating the safety and intelligent advantages of the technical solution.

[0020] In terms of energy conservation and economy, this circulating water pumping station performs exceptionally well. The electric motor circulating pumps utilize variable frequency control technology, dynamically adjusting their operating status according to the load demand of the circulating water system, effectively reducing energy consumption. The diesel generator pumps not only serve as backup power but also as emergency power, reducing dependence on external power and significantly lowering operating costs. Furthermore, the system's modular design reduces the use of electrical components such as cables, resulting in lower initial investment and simplified maintenance. This combination of efficient energy utilization and cost control brings tangible economic benefits to users, demonstrating the practical value of the technological solution.

[0021] This technical solution is highly practical and adaptable to various industrial scenarios. Its modular design facilitates installation and maintenance, and the control cabinet's user interface is simple and intuitive, significantly improving work efficiency. Whether facing load changes or sudden power outages, the system can respond flexibly, ensuring the stable operation of the circulating water system and providing reliable support for industrial production. Through the combination of innovation and intelligence, this solution not only addresses the pain points of traditional pump station operation but also possesses widespread application potential, suitable for industrial applications of different scales and needs, fully demonstrating its superior practicality and adaptability.

[0022] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1This is a schematic diagram of a high-efficiency intelligent circulating water pump station with external power supply, as shown in the embodiment.

[0025] Reference numerals: 11. First electric motor circulating pump; 12. Second electric motor circulating pump; 2. Diesel engine circulating pump head; 3. Generator; 4. Diesel engine; 5. Regulating valve; 61. First pressure gauge; 62. Second pressure gauge; 63. Flow meter; 7. Control cabinet; 8. Connecting pipe; 9. Cable. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Example 1

[0030] Please see Figure 1This is an externally powered, high-efficiency intelligent circulating water pumping station, comprising a first electric motor circulating pump 11, a second electric motor circulating pump 12, and a diesel generator pump arranged in parallel via a connecting pipe 8. A first pressure gauge 61 is installed at the inlet of the connecting pipe 8 to monitor the inlet pressure of the pumping station; (typically, one of the first electric motor circulating pump 11 and the second electric motor circulating pump 12 operates while the other is on standby).

[0031] A second pressure gauge 62 and a flow meter 63 are provided at the outlet of the connecting pipe 8 to monitor the outlet pressure and flow of the water pump station, and a regulating valve 5 is provided at the outlet to regulate the flow of circulating water sent out by the water pump station.

[0032] The key feature of this embodiment is that the diesel generator pump includes a diesel engine circulating pump head 2, a generator 3, and a diesel engine 4 arranged coaxially. The diesel engine circulating pump head 2 is connected to the connecting pipe 8, and the diesel engine 4 is connected to the diesel engine circulating pump head 2 and the generator 3 respectively to provide power to the diesel engine circulating pump head 2 and the generator 3.

[0033] Furthermore, this embodiment also includes a control cabinet 7, which is connected to the diesel engine 4, generator 3, regulating valve 5, first pressure gauge 61, second pressure gauge 62 and flow meter 63 via cables 9, and receives information from the first pressure gauge 61, second pressure gauge 62 and flow meter 63, controls the diesel engine 4 and regulating valve 5, and receives power from the generator 3.

[0034] Furthermore, the control cabinet 7 is also equipped with external cables for transmitting power to the outside.

[0035] Specifically, the control cabinet 7 consists of a housing, control circuits, electrical components (such as a PLC), and operation display components (such as a touch screen). The control cabinet 7 is used to receive manually input information and signals from the first pressure gauge 61, the second pressure gauge 62, and the flow meter 63, and to control the start and stop of the diesel engine 4 (and thus the start and stop of the diesel engine circulating pump head 2), the opening degree of the regulating valve 5, and the voltage, frequency, and power of the external power supply of the generator 3.

[0036] When the plant loses power, the diesel generator pump starts immediately. The diesel engine 4 drives the diesel engine circulating pump head 2 to provide power to the circulating water system; at the same time, it drives the generator 3 to transmit power to the outside world to supply equipment that must operate when the system loses power (such as electric water pumps).

[0037] Example 2

[0038] In this embodiment, the second electric motor circulation pump 12 is eliminated, and only the first electric motor circulation pump 11 and the diesel generator pump, which are arranged in parallel through the connecting pipe 8, are retained. The control cabinet 7 is also connected to the first electric motor circulation pump 11 through the cable 9 to control the operation of the first electric motor circulation pump 11.

[0039] Furthermore, the first electric motor circulating pump 11 is a variable frequency pump, providing power to the circulating water system. When the load demand of the circulating water system changes, the first electric motor circulating pump 11 can be controlled by frequency conversion to achieve energy saving.

[0040] The externally powered, high-efficiency intelligent circulating water pump station provided by this utility model has the following advantages:

[0041] 1. High safety. Controlled by its own control cabinet 7, the simple control system and short signal transmission distance ensure the safety of the circulating pump station.

[0042] 2. Low investment. This pumping station does not require a separate diesel generator, and has fewer electrical components such as cables, saving on investment.

[0043] 3. High energy efficiency. The electric circulating pump adopts frequency conversion control, which can adjust the frequency of the motor circulating pump according to the load demand of the circulating water system to achieve energy saving.

[0044] 4. In the event of a power outage in the plant area, the diesel generator pump can provide external power to equipment that must operate during the power outage (such as electric water pumps).

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency intelligent circulating water pumping station with external power supply, characterized in that: It includes an electric motor circulation pump and a diesel generator pump arranged in parallel via connecting pipes. The diesel generator pump includes a diesel engine circulation pump head, a generator, and a diesel engine arranged coaxially. The diesel engine is drivenly connected to the diesel engine circulation pump head and the generator respectively to provide power to the diesel engine circulation pump head and the generator.

2. The externally powered, high-efficiency intelligent circulating water pump station according to claim 1, characterized in that: It also includes a control cabinet, which is connected to the diesel engine, generator, and electric motor circulating pump via cables to control the operation of the diesel engine and electric motor circulating pump, and to receive power from the generator.

3. The externally powered, high-efficiency intelligent circulating water pump station according to claim 2, characterized in that: The control cabinet is equipped with cables for external power supply.

4. The externally powered, high-efficiency intelligent circulating water pump station according to claim 2, characterized in that: A first pressure gauge is installed at the inlet of the connecting pipe to monitor the inlet pressure of the water pump station; a second pressure gauge and a flow meter are installed at the outlet of the connecting pipe to monitor the outlet pressure and flow of the water pump station, and a regulating valve is installed at the outlet to regulate the flow rate of the circulating water sent out by the water pump station.

5. The externally powered, high-efficiency intelligent circulating water pump station according to claim 4, characterized in that: The control cabinet is also connected to the first pressure gauge, the second pressure gauge, the flow meter, and the regulating valve via cables, receiving information from the first pressure gauge, the second pressure gauge, and the flow meter to control the diesel engine and the regulating valve.

6. The externally powered, high-efficiency intelligent circulating water pump station according to claim 2, characterized in that: The electric motor circulating pump is a variable frequency pump, which can be controlled by frequency conversion according to the load requirements of the circulating water system to achieve energy saving.

7. The externally powered, high-efficiency intelligent circulating water pump station according to claim 1, characterized in that: The electric motor circulating pump includes a first electric motor circulating pump and a second electric motor circulating pump. The first electric motor circulating pump and the second electric motor circulating pump are arranged in parallel through connecting pipes, with one operating and the other on standby.

Images