Non-negative pressure unitized water supply equipment

Abstract

The invention realize a purpose by adopting the structure as follows: a non-negative pressure complete set water supply apparatus comprises a non-negative pressure double-inlet water pump, a conventional double-inlet water pump, a non-negative pressure constant flow tank, a water bag, a vacuum suppressor, a piping valve, etc., wherein the vacuum suppressor is installed on a non-negative pressure tank; the water bag is also installed in the non-negative pressure tank; a water inlet / outlet opening of the water bag is adopted for water getting in or out of the water bag; the water inlet / outlet opening of the water bag is connected with a water inlet in the conventional double-inlet water pump through the water inlet pipe mouth of the non-negative pressure tank; a negative pressure detecting device is installed between the water inlet / outlet opening of the water bag and the water inlet in the conventional double-inlet water pump; the other water inlet of the conventional double-inlet water pump is connected with one of the water inlets of the non-negative pressure double-inlet water pump; a pipe mouth connected with the feeding tap water is arranged at a water inlet of a non-negative pressure control valve; the water outlets of all the water pumps are respectively connected with a water outlet main pipe through a valve set; a pressure sensor is installed on the water outlet main pipe; and a connecting pipe mouth connected to a service pipe network is also arranged on the water outlet main pipe.

Description

1: Technical field [0001] The invention relates to a complete set of water supply equipment used in a pressurized domestic water supply system, in particular to a complete set of superimposed and pressurized bladder-type non-negative pressure water supply equipment. Two: background technology [0002] The bladder-type non-negative pressure complete water supply equipment in the prior art adopts a structure in which the water inlet and the water outlet are separated, so that when the equipment is working, if the inlet water volume is less than the outlet water volume, the bladder begins to shrink, and the pressure in the bladder will rapidly increase. Since the water inlet of the bladder is connected to the municipal water inlet, the pressure of the municipal water inlet will also drop rapidly, which will cause negative pressure on the municipal water inlet, thereby affecting the normal water supply. At the same time, the equipment is in the process of operation The water pre...

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Problems solved by technology

[0002] The bladder-type non-negative pressure complete water supply equipment in the prior art adopts a structure in which the water inlet and the water outlet are separated, so that when the equipment is working, if the inlet water volume is less than the outlet water volume, the bladder begins to shrink, and the pressure in the bladder will rapidly increase. Since the water inlet of the bladder is connected to the municipal water inlet, the pressure of the municipal water inlet will also drop rapidly, which will cause negative pressure on the municipal water inlet, thereby affecting the normal water supply. At the same time, the equipment is in the process of operation Insufficient protection of the water pressure requirements of other surrounding water users (the water pressure may drop to the minimum value), so that the water supply of other surrounding users is in an unstable state

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