Integrated debugging system of external circulation diesel generating set

Abstract

An integrated debugging system of an external circulation diesel generating set is characterized in that a plurality of integrated debugging units arranged on the outer side of a water tower in parallel are arranged, and each integrated debugging unit comprises a circulating pump, a centrifugal pump system communicated with the circulating pump, and a first control valve and a second control valve which are arranged on a pipeline at the rear end of the integrated debugging unit; the first control valve is adjacent to the centrifugal pump system, and the second control valve is adjacent to the water tower; the centrifugal pump system comprises a centrifugal pump branch and a third control valve arranged in parallel with the centrifugal pump branch, the centrifugal pump branch is connected with a manual control valve and a centrifugal pump, the manual control valve is arranged between the circulating pump and the centrifugal pump, several groups of channels can be selected at will according to requirements, the remaining channels are correspondingly closed, and the cooling requirement is met; and the performance stability of the diesel generating set in a working state is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of diesel generator equipment, and specifically relates to an integrated commissioning system for external circulation diesel generator sets. Background Technology

[0002] Diesel engine sets currently operate in two modes: air-cooled and water-cooled. Air cooling cools the engine through natural airflow. Water cooling cools the engine through water circulation. Water cooling is further divided into radiator-cooled and water station circulation types. The first type can be cooled by selecting a radiator with the appropriate power output. However, water station circulation is more complex, and if multiple units are operating simultaneously, more factors need to be considered.

[0003] Utility model announcement CN220118209U discloses a dual-cycle cooling system for marine diesel generator sets. Key technical features include a freshwater circulation system with a cooling water thermostat positioned between the diesel engine outlet and a heat exchanger. The input of the cooling water thermostat is connected to the diesel engine outlet. One output of the cooling water thermostat is connected to the input of the heat exchanger. A second output of the cooling water thermostat is connected to a pipeline between the heat exchanger and the diesel engine. The cooling system also includes a seawater cooling system. The seawater cooling system has a seawater pump with three outputs: the first connects to a muffler; the second connects to the heat exchanger via the generator; and the third connects to the heat exchanger via an air cooler. The system primarily adjusts the amount of cooling water entering the heat exchanger based on the outlet temperature of the cooling water entering the cooling water thermostat, ensuring the diesel engine outlet water temperature remains within the designed range, thereby improving the cooling efficiency of the diesel generator set.

[0004] Utility model CN203783712U discloses a cooling water system for a diesel generator set. Its key technical features include an intercooling water system and a high-temperature water system. The intercooling water system comprises an intercooling water outlet pipe, an oil heat exchanger, a heat exchanger outlet pipe, an intercooling water pump inlet pipe, and a radiator. Intercooling water from the diesel engine enters the oil heat exchanger via the intercooling water outlet pipe to cool the engine oil, then enters the radiator via the heat exchanger outlet pipe for further cooling, and finally returns to the diesel generator set via the intercooling water pump inlet pipe to cool the compressed air. The high-temperature water system also includes a high-temperature water outlet pipe and a high-temperature water pump inlet pipe. High-temperature water from the diesel engine enters the radiator via the high-temperature water outlet pipe for further cooling, and then returns to the diesel generator set via the high-temperature water pump inlet pipe to cool high-temperature components such as the piston and crankshaft that are in direct contact with the combustion gases, ensuring that the temperature of each part is controlled within a certain range and guaranteeing the normal operation of the diesel generator set. However, for multiple generator sets operating simultaneously, the cooling requirements are still insufficient. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the existing technology by providing an integrated commissioning system for external circulation diesel generator sets, which meets cooling requirements and improves the performance stability of diesel generator sets under operating conditions.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is as follows:

[0007] An integrated commissioning system for an external circulation diesel generator set includes multiple integrated commissioning units arranged in parallel outside a water tower. Each integrated commissioning unit includes a circulation pump, a centrifugal pump system connected to the circulation pump, and a first control valve and a second control valve arranged on its rear pipeline. The first control valve is located close to the centrifugal pump system, and the second control valve is located close to the water tower.

[0008] The centrifugal pump system includes a centrifugal pump branch and a third control valve arranged in parallel with it. The centrifugal pump branch is equipped with a manual control valve and a centrifugal pump, and the manual control valve is arranged between the circulation pump and the centrifugal pump.

[0009] The integrated debugging unit is provided in at least three groups in parallel.

[0010] The integrated debugging unit is arranged in 3 to 6 groups in parallel.

[0011] Both the first and third control valves are butterfly valves, while the second control valve is a ball valve.

[0012] The manual control valve is a manual butterfly valve.

[0013] The circulating pumps are connected to the generator sets in a one-to-one correspondence.

[0014] The beneficial effects of this utility model are:

[0015] This integrated commissioning system for external circulation diesel generator sets utilizes multiple parallel integrated commissioning units located outside the water tower. Each unit includes a circulation pump, a centrifugal pump system connected to the circulation pump, and a first control valve and a second control valve on its rear pipeline. The first control valve is positioned adjacent to the centrifugal pump system, and the second control valve is positioned adjacent to the water tower. The centrifugal pump system includes a centrifugal pump branch and a third control valve positioned parallel to it. A manual control valve and a centrifugal pump are connected to the centrifugal pump branch, with the manual control valve positioned between the circulation pump and the centrifugal pump. By coordinating the control valves and pipelines, joint commissioning and testing can be achieved. Several channels can be selected as needed, and the remaining channels can be closed accordingly to meet cooling requirements and improve the performance stability of the diesel generator set under operating conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of a centrifugal pump system;

[0018] Figure 3 This is a partial structural diagram of the water tower part of this utility model. Detailed Implementation

[0019] The following specific embodiments 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.

[0020] This utility model provides an integrated commissioning system for external circulation diesel generator sets, such as... Figures 1 to 3 As shown.

[0021] An integrated commissioning system for an external circulation diesel generator set includes multiple integrated commissioning units arranged in parallel outside a water tower 1. Each integrated commissioning unit includes a circulation pump 4, a centrifugal pump system 3 connected to the circulation pump 4, and a first control valve 31 and a second control valve 32 arranged on its rear pipeline. The first control valve 31 is located close to the centrifugal pump system 3, and the second control valve 321 is located close to the water tower 1.

[0022] The centrifugal pump system 3 includes a centrifugal pump branch and a third control valve 33 arranged in parallel with it. The centrifugal pump branch is equipped with a manual control valve 34 and a centrifugal pump 2, and the manual control valve 34 is arranged between the circulating pump 4 and the centrifugal pump 2. The circulating pump 4 is connected to the generator set in a one-to-one correspondence.

[0023] To ensure adequate cooling, at least three sets of integrated commissioning units are arranged in parallel; preferably, 3 to 6 sets of integrated commissioning units are arranged in parallel. In this embodiment, 6 sets of integrated commissioning units are arranged in parallel, allowing 6 generator sets to operate in a parallel cyclic system without interference. Alternatively, a single generator set can also use this cyclic system; any one channel can be selected, and the remaining five channels can be closed.

[0024] The working principle and process are as follows:

[0025] Diesel generator set starts working → hot water circulates in the cylinder block → hot water circulation pump starts working → all control valves open simultaneously → all control valves open simultaneously → all control valves open simultaneously (for water tower hot water circulation) → pause for 5-7 seconds → the second and first control valves are in the on / off state → close the third control valve → plug in the power to start the pipeline centrifugal pump → water from the water tower flows back to the generator through the pipeline → excess water is drained through the manual control valve → pipeline circulation is achieved → 30 seconds before the generator set stops → plug in the power to start the pipeline centrifugal pump, the circuit reverses to extract excess water from the generator → water is carried into the pipeline through the pipeline centrifugal pump → generator set stops for 30 seconds → all control valves close simultaneously → manually open the manual control valve to drain water → all control valves close simultaneously → all control valves close simultaneously → pipeline centrifugal pump stops → check if all pipelines are closed → disconnect all lines and pipelines.

[0026] If this patent uses terms such as "first" and "second" to define components, those skilled in the art should know that the use of "first" and "second" is merely for the convenience of describing this utility model and simplifying the description, and the above terms have no special meaning.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0028] In the description of this utility model, it should be understood that the terms "front", "rear", "left", "right", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and simplify 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, they should not be construed as limiting the scope of protection of this utility model.

Claims

1. An integrated commissioning system for an external circulation diesel generator set, characterized in that: It includes multiple sets of integrated commissioning units arranged in parallel on the outside of the water tower, and each set of integrated commissioning units includes a circulating pump, a centrifugal pump system connected to the circulating pump, and a first control valve and a second control valve arranged on the pipeline at its rear end. The first control valve is set close to the centrifugal pump system, and the second control valve is set close to the water tower. The centrifugal pump system includes a centrifugal pump branch and a third control valve arranged in parallel with it. The centrifugal pump branch is equipped with a manual control valve and a centrifugal pump, and the manual control valve is arranged between the circulation pump and the centrifugal pump.

2. The integrated commissioning system for an external circulation diesel generator set according to claim 1, characterized in that: The integrated debugging unit is provided in at least three groups in parallel.

3. An integrated commissioning system for an external circulation diesel generator set according to claim 1 or 2, characterized in that: The integrated debugging unit is arranged in 3 to 6 groups in parallel.

4. An integrated commissioning system for an external circulation diesel generator set according to any one of claims 1 to 3, characterized in that: Both the first and third control valves are butterfly valves, while the second control valve is a ball valve.

5. The integrated commissioning system for an external circulation diesel generator set according to claim 4, characterized in that: The manual control valve is a manual butterfly valve.

6. The integrated commissioning system for an external circulation diesel generator set according to claim 4, characterized in that: The circulating pumps are connected to the generator sets in a one-to-one correspondence.

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