Box type non-negative-pressure automatic-switching variable-frequency water supply system

Abstract

The invention discloses a box type non-negative-pressure automatic-switching variable-frequency water supply system which comprises a current stabilization tank, a water tank, a variable-frequency constant-pressure water pump unit and a non-negative-pressure electrical cabinet. A first water pipe communicates to a water inlet part of the current stabilization tank; a third water pipe communicatesto a water inlet part of the water tank; a second water pipe communicates to a water outlet part of the current stabilization tank; and a fourth water pipe communicates to a water outlet part of the water tank. According to the box type non-negative-pressure automatic-switching variable-frequency water supply system provided by the invention, through arranging a spring sleeve, the displacement amplitude produced by a support plate is reduced, and the vibration amplitude of a digital variable-frequency pump and the current stabilization tank on a bed hedgehopping plate is further reduced, so that the digital variable-frequency pump and the current stabilization tank have higher reliability in the working process, the occurrence of the phenomenon that a support frame is deformed due to the shaking of the current stabilization tank after long-time use is effectively avoided, meanwhile, the occurrence of the phenomenon that the connecting part of a second water pipe, a connecting pipe andthe digital variable-frequency pump is leaky due to the shaking of the digital variable-frequency pump after long-time use is effectively avoided, and the technical problem that the water pipe connecting displacement airtightness becomes poor under the circumstance that the current stabilization tank and the water pump work for a long time in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of water supply, in particular to a box-type non-negative pressure automatic switching frequency conversion water supply system. Background technique [0002] With the development of the city, there are more and more high-rise residential areas. The tap water pressure is insufficient, and high-rise residential areas need secondary pressurized water supply. Traditional reservoirs are pressurized for water supply, and the water is prone to secondary pollution. Regular disinfection takes up a large area and high operating costs. Can not effectively use the original tap water pressure superposition, not energy saving. The non-negative pressure water supply equipment has no water tank, and the tap water cannot be temporarily supplied without water supply. During the peak period of tap water consumption, the equipment is turned on to affect the water consumption of multi-storey buildings. [0003] The existing ...

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Problems solved by technology

[0004] The object of the present invention is to provide a box-type non-negative pressure automatic switching frequency conversion water supply system to solve the following technical problems: (1) provide thrust to the connecting plate through the telescopic cylinder piston rod through the thrust shaft seat, push the connecting plate to move upward, and the connecting plate Drive the lifting plate to rise along the vertical rail on the support rod, and then drive the sound insulation cover to rise, and the digital frequency conversion pump in the sound insulation cover is exposed. Through the lifting setting of the sound insulation cover, the noise generated during the working process of the digital frequency conversion pump can be effectively suppressed. Isolation, when the digital variable frequency pump needs to be repaired at the same time, the rise of the soundproof cover can meet the maintenance work of the digital variable frequency pump. From the sound insulation to the maintenance process, the lifting of the soundproof cover does not need to be manually moved, and it can be completed by the telescopic cylinder, which solves the problem of water supply in the prior art The technical problem of inconvenient disassembly of the soundproof cover outside the water pump in the system; (2) The digital frequency conversion pump is used to draw water from the steady flow tank, and the steady flow tank drives the support frame to shake while the digital frequency conversion pump itself shakes, which in turn drives the pad at the bottom The high plate moves up and down along the groove on the inner wall of the plastic-sprayed base. The setting of the pressure spring reduces the displacement range produced by the high plate. The spring rod stretches, and at the same time, the support plate presses down on the spring sleeve on the fixed rod, and the fixed block supports the spring sleeve. The setting of the gas spring rod and the spring sleeve reduces the displacement generated by the support plate, and then cooperates with the reduction of the digital frequency conversion pump on the pad , The vibration amplitude of the stabilizing tank makes the digital variable frequency pump and the stabilizing tank more reliable in the working process, effectively avoiding the deformation of the support frame caused by the long-term use of the stabilizing tank, and effectively avoiding the long-term use of the digital variable frequency pump. Water leakage occurs at the connection between the second water pipe, the connecting pipe and the digital frequency conversion pump, which solves the technical problem that the water pipe connection displacement and airtightness are easily deteriorated in the prior art when the steady flow tank and the water pump work for a long time; (3) the support frame, The frequency conversion constant pressure water pump unit is installed on the riser. Through this setting, the steady flow tank and the digital frequency conversion pump are all set on the riser. The occupied area of ​​the water supply system is convenient for subsequent maintenance, installation, and connection of the steady flow tank and the digital frequency conversion pump, making the entire box-type non-negative pressure automatic switching frequency conversion water supply system occupy a smaller area and have a higher efficiency. Practicality

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