Diaphragm pump having position control
A diaphragm pump and diaphragm technology, which is applied to pumps with flexible working elements, pumps, liquid variable capacity machines, etc., can solve problems such as failure, complex structure, and inability to ensure the hydraulic seal separation of the piston and the diaphragm working chamber.
Active Publication Date: 2015-12-30
PROMINENT
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Problems solved by technology
[0010] However, that structure is relatively complex and prone to failure if the hydraulic seal separation of the piston from the working chamber of the diaphragm cannot be ensured due to the design configuration of the valve element
Method used
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Embodiment Construction
[0034] figure 1 is a schematic diagram of part of a diaphragm pump. A diaphragm pump according to the invention has a conveyor chamber (not shown), a suction connection (not shown) and a pressure connection (not shown) connected to the conveyor chamber. The working chamber 7 is filled with hydraulic fluid. Via passage 12, the oscillating pressure p 1 Can act on hydraulic fluids.
[0035] The invention also provides a membrane (not shown) which separates the conveyor chamber and the working chamber 7 from each other. The diaphragm is clamped between the conveyor chamber housing (not shown) and part 3 . The diaphragm is held in this position by the head 2 of the tie rod 1 . The conveyor chamber is then figure 1 The center is to the left of the head 2 of the tie rod 1.
[0036] figure 1 The tie rod 1 is shown in its pressure stroke position, that is to say this is the position the tie rod 1 and thus the diaphragm should occupy at the end of the pressure stroke. This posi...
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The invention relates to a diaphragm pump, comprising a pumping chamber, a suction connection and a pressure connection, which are both connected to the pumping chamber, a working chamber, which is filled with a hydraulic fluid, a device for applying an oscillating pressure p1 to the hydraulic fluid, a diaphragm, which separates the pumping chamber and the working chamber from each other and can be moved back and forth between a pressure stroke position and a suction stroke position, wherein the volume of the pumping chamber is smaller in the pressure stroke position of the diaphragm than in the suction stroke position of the diaphragm, and a storage chamber for accommodating hydraulic fluid at the pressure p2, wherein the storage chamber and the working chamber are connected to each other by means of a valve having a closing part. According to the invention, in order to provide a diaphragm pump of the type mentioned at the beginning that has a simple construction and reliably ensures that the diaphragm cannot move too far beyond the pressure stroke position, the diaphragm is coupled to the closing part in such a way that the valve is opened when the diaphragm moves from the pressure stroke position to a position that is farther from the suction stroke position.
Description
technical field [0001] The present invention relates to a hydraulically driven diaphragm pump. This diaphragm pump has: a conveyor chamber; a suction connection and a pressure connection, both of which are connected to the conveyor chamber; a working chamber, which is filled with hydraulic fluid; for applying pressure to the hydraulic fluid Oscillation pressure p 1 device; a diaphragm that separates a conveyor chamber from a working chamber and is capable of reciprocating movement between a pressure stroke position and a suction stroke position, wherein the volume of the conveyor chamber at the pressure stroke position of the diaphragm is less than that of the diaphragm The volume at the position of the suction stroke of ; the storage chamber, which is used to accommodate the pressure p 2 A hydraulic fluid in which the storage chamber and the working chamber are connected together by a valve with a closed portion. Background technique [0002] In operation, the suction an...
Claims
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IPC IPC(8): F04B43/06F04B43/067
CPCF04B43/067F04B43/073
Inventor M·雷哈德C·阿诺德
Owner PROMINENT