Universal granular carbon cartridge inlet end cap

Abstract

The utility model relates to a general granular carbon filter core water inlet end cover, including end cover body, the side of the circular boss of end cover body outer surface and the boss upper edge of being connected with the side are equipped with the several flow channel hollow water inlets of uniform arrangement of spiral shape, the utility model discloses the structure design of water inlet end cover can effectively improve the water inflow rate of granular carbon filter core whole under the condition that water supply pressure is insufficient and then improve the water inflow, thereby satisfying the requirement of granular carbon filter core to water supply flow rate, effectively improve the water production.

Description

Technical Field

[0001] This utility model relates to water purifier filter technology, specifically to a universal granular carbon filter inlet end cap. Background Technology

[0002] Many residential communities now have large-scale water purifiers installed. However, due to various reasons, many of these community water purifiers are not classified as commercial water purification systems. This means they often lack a comprehensive intelligent pressure control system. Therefore, a common problem encountered by these community water purifiers is insufficient water pressure within the community. This is a prevalent issue in all residential communities. Most community water purifiers are installed after most residents have moved in, meaning they are typically installed at the end of the water supply network, resulting in insufficient water pressure after installation. Large-scale commercial water purification systems generally have booster pumps and comprehensive intelligent pressure control systems, which can solve this problem. However, large-scale commercial water purification systems require significant investment and occupy a large area, and many communities lack the necessary construction conditions. These factors prevent the installation of large-scale commercial water purification systems in most communities. Consequently, many ordinary large-scale community water purifiers fail to produce enough water to meet supply requirements due to insufficient water pressure after installation.

[0003] In water purifiers, both RO reverse osmosis membranes and granular carbon filters have specific inlet water pressure requirements. Generally, RO reverse osmosis membranes require an inlet water pressure of at least 0.3 MPa (3 kg), while granular carbon filters require at least 0.1 MPa (1 kg). This is because excessively low water pressure can lead to decreased filtration efficiency, or even prevent the reverse osmosis membrane and granular carbon filter from starting or functioning effectively.

[0004] The negative effects of low water flow rate on granular carbon filter cartridges include: (1) Decreased adsorption efficiency: The principle is that activated carbon adsorption depends on the contact time between water and carbon particles (contact time = filter cartridge volume / flow rate). When the flow rate is too low, the water stays in the filter cartridge for too long, which may cause the adsorption sites on the surface of activated carbon to be saturated prematurely, resulting in poor water quality; and the filter cartridge is prone to the growth of microorganisms (such as bacteria and algae), which pollute the effluent. (2) Increased risk of clogging: The reason is that at low flow rates, impurities in the water are more likely to accumulate inside the filter cartridge, leading to more clogging. Utility Model Content

[0005] The technical objective of this utility model is to provide a universal carbon granular filter cartridge inlet end cap. Through the structural design of the inlet end cap, it can effectively increase the overall water inlet flow rate of the granular carbon filter cartridge under insufficient water supply pressure, thereby increasing the water inlet volume and meeting the water supply flow rate requirements of the granular carbon filter cartridge, thus effectively increasing the water production.

[0006] The technical solution of this utility model is: a universal particulate carbon filter element inlet end cap, including an end cap body, and a plurality of spirally arranged hollow inlets with flow channels are provided on the side of the circular protrusion on the outer surface of the end cap body and on the upper edge of the protrusion connected to the side.

[0007] Furthermore, this utility model has a spiral guide plate on the inner wall of the circular boss on the inner side of the end cap, with every two adjacent hollow water inlets having a gradually narrowing flow channel cross section between each two adjacent guide plates.

[0008] Furthermore, the convergence angle of the flow channel cross section between adjacent guide plates in this invention is designed to be a convergence angle of 5~15°. If it is too large, it will lead to eddies and energy loss.

[0009] The beneficial effects of this invention are as follows: By setting several spiral-shaped perforated water inlets on the outer surface of the end cap, this invention can effectively increase the flow rate of water entering the filter element, and under the same inlet pressure, it can effectively increase the flow rate, thus effectively increasing the water production. The principle is that the spiral structure causes the water to enter the filter element tangentially, generating centrifugal force and causing the water to rotate around the center of the filter element. This swirling flow reduces the direct frictional resistance between the water flow and the filter element wall, while preventing impurities from accumulating locally at the inlet, thereby effectively increasing the flow rate. Furthermore, the spiral inlets have the advantage of dispersing the water inlet direction, allowing the water to flow more evenly through the filter element cross-section, avoiding uneven flow rate caused by single-point overload. The evenly distributed water flow can fully utilize the filter element's filtration area, improving overall filtration efficiency.

[0010] Meanwhile, this invention also features a spiral guide plate on the inner side of the end cap, which can further increase the inlet water flow rate. In particular, the design of the flow channel cross-section between adjacent guide plates is gradually narrowing, which, based on the continuity equation and Bernoulli's principle in fluid dynamics, can effectively increase the inlet water flow rate inside the filter cartridge.

[0011] This invention employs a spiral inlet design on the outer surface of the end cap, combined with a spiral guide plate on the inner side of the end cap. This design allows the flow rate entering the carbon granule filter cartridge to reach the flow rate of a standard end cap at an inlet pressure of 4 kg, even when the inlet water pressure is 1 kg. This effectively ensures that even in areas with insufficient water supply pressure, the water production capacity can still reach or approach the normal water production capacity of a filter cartridge equipped with a standard end cap. Attached Figure Description

[0012] Figure 1 This is a front perspective view of an embodiment of the universal particulate carbon filter element inlet end cap of this utility model.

[0013] Figure 2 This is a rear perspective view of an embodiment of the universal particulate carbon filter element inlet end cap of this utility model. Detailed Implementation

[0014] As attached Figure 1 , 2 The illustration shows an embodiment of a universal particulate carbon filter cartridge inlet end cap according to this utility model. It includes an end cap body 1. On the outer surface of the end cap body 1, a circular boss 2 forms a circular perforated inlet 3 with evenly arranged spiral flow channels on its side and the upper edge of the boss connected to the side. On the inner wall of the end cap body corresponding to the circular boss, a spiral guide plate 4 is provided every two adjacent perforated inlets, with the flow channel cross-section gradually narrowing between each two adjacent guide plates.

[0015] In actual implementation, the convergence angle of the flow channel cross section between adjacent guide plates is designed to be 5°~15°, because an excessively large convergence angle will lead to eddies and energy loss.

[0016] This invention effectively increases the flow rate of water entering the filter element by setting several spiral-shaped perforated water inlets on the outer surface of the end cap. Under the same inlet pressure, it can effectively increase the flow rate, thus increasing the water production. The principle is that the spiral structure causes the water to enter the filter element tangentially, generating centrifugal force and causing the water to rotate around the center of the filter element. This swirling flow reduces the direct frictional resistance between the water flow and the filter element wall, while preventing impurities from accumulating locally at the inlet, thereby effectively increasing the flow rate. Furthermore, the spiral inlets have the advantage of dispersing the water flow direction, allowing the water to pass more evenly through the filter element cross-section, avoiding uneven flow rates caused by single-point overload. The evenly distributed water flow can fully utilize the filter element's filtration area, improving overall filtration efficiency. Simultaneously, this invention also designs spiral-shaped guide plates on the inner side of the end cap, which can also increase the inlet water flow rate. In particular, the design of the flow channel cross-section between adjacent guide plates is gradually narrowing, which, based on the continuity equation and Bernoulli's principle in fluid dynamics, can effectively increase the inlet water flow rate inside the filter element cylinder.

Claims

1. A universal granular carbon filter cartridge inlet end cap, comprising an end cap body, characterized in that: The side of the end cap body, which is a circular protrusion, and the upper edge of the protrusion connected to the side are provided with several spiral-shaped hollow water inlets with evenly arranged flow channels. Spiral guide plates are provided on the inner wall of the circular boss on the inner side of the end cap, with each two adjacent hollow water inlets having a gradually narrowing flow channel cross section between each two adjacent guide plates.

2. The universal granular carbon filter cartridge inlet end cap according to claim 1, characterized in that: The convergence angle of the flow channel cross-section between adjacent guide plates is designed to be a convergence angle of 5~15°.

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