Method for manufacturing fire fighting pipeline water supply device
A water supply device and fire pipe technology, which is applied to water supply devices, water supply main pipelines, water supply pipeline systems, etc., can solve the problems of complex control system lines, high prices, heavy debugging and maintenance workload, and reduce manufacturing costs. Simplicity and the effect of improving safety and reliability
Inactive Publication Date: 2010-03-31
TIANJIN GANQUAN GROUP
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Problems solved by technology
[0002] At present, if ordinary centrifugal pumps are connected in parallel and cannot achieve constant-pressure water supply, an adjustable-speed centrifugal pump equipped with a frequency converter and a constant-speed centrifugal pump are used in parallel to operate as a constant-pressure water supply unit.
When two constant speed pumps run in parallel, the head will be too high, the pressure will be too high, the pipeline will burst, and the pipeline components will be easily damaged
Using a variable frequency speed regulating centrifugal pump and a constant speed centrifugal pump to operate in parallel to achieve speed regulation, the price is expensive, the control system circuit is complex, and the debugging and maintenance workload is large
Method used
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Experimental program
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Effect test
Embodiment
[0006] Embodiment: a method for making a fire-fighting pipeline water supply device, which includes the following steps: 1) connecting the constant-speed tangential pump and the constant-speed centrifugal pump to the water source through the connecting pipeline, 2) configuring a check valve on the connecting pipeline , 3) The constant-speed tangential pump and the constant-speed centrifugal pump are respectively connected in parallel by the connecting pipeline through the respective gate valves, and after parallel connection, the connecting pipeline is connected to the water supply pipeline system.
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The invention relates to a method for manufacturing a fire fighting pipeline water supply device, which comprises the following steps: 1. respectively communicating a constant speed tangent pump and aconstant speed centrifugal pump with a water source by connecting pipelines; 2. allocating a check valve on each connecting pipeline; and 3. respectively connecting the constant speed tangent pump and the constant speed centrifugal pump in parallel through each connected brake valve by the connecting pipelines, and connecting to a water supply pipeline system by the connecting pipeline after parallel connection. The fire fighting pipeline water supply device has the advantages of simple structure, direct realization of constant pressure water supply, manufacturing cost reduction as well as safety and reliability improvement.
Description
technical field [0001] The invention relates to a method for manufacturing a fire-fighting pipeline water supply device. Background technique [0002] At present, if ordinary centrifugal pumps are connected in parallel and cannot achieve constant pressure water supply, an adjustable speed centrifugal pump equipped with a frequency converter and a constant speed centrifugal pump are used to operate in parallel as a constant pressure water supply unit. When two constant speed pumps run in parallel, the head will be too high, the pressure will be too high, the pipeline will burst, and the pipeline components will be easily damaged. Using a frequency conversion speed regulating centrifugal pump and a constant speed centrifugal pump to operate in parallel to realize speed regulation is expensive, the control system circuit is complicated, and the debugging and maintenance workload is heavy. Contents of the invention [0003] The purpose of the present invention is to overcome ...
Claims
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IPC IPC(8): E03B7/07E03B5/00A62C31/00
Inventor 齐金生
Owner TIANJIN GANQUAN GROUP