Outlet flow control unit and its branch pipe structure

Abstract

A manifold structure includes a manifold and multiple outlet flow control units. The manifold includes an inlet and multiple outlets. Each outlet has a connector with a connecting end, an exposed end, and a channel. The connecting end is located at the outlet and has a flow inlet, while the exposed end has a flow outlet. The channel connects the flow inlet and the flow outlet. The outlet flow control units are located within the channel and include a valve core and a resilient element. The valve core is located within the channel and has a gap with the flow outlet. The resilient element is tightly fitted onto the valve core. The pressure difference generated by the distance between the inlet and each outlet causes the resilient element to move and deform axially along the channel relative to the flow outlet. This, in turn, causes each valve core to move axially along the channel relative to the flow outlet, changing the gap between the valve core and the flow outlet, thereby adjusting the flow rate at each outlet to achieve uniform flow.

Claims

1. An outlet flow control unit for being disposed within a channel of a connector of a manifold, the manifold including an inlet and a plurality of outlets, each of the outlets being provided with a connector having a flow outlet, the outlet flow control unit comprising: a valve core disposed within the channel, the valve core having a gap with the flow outlet; and an elastic element disposed within the channel and tightly fitted onto the valve core, wherein due to the different distances between the inlet and each of the outlets, each of the outlets has a different pressure differential, the different pressure differentials causing each of the elastic elements to move and deform axially along each of the channel relative to each of the flow outlets, and driving each of the valve cores to move axially along each of the channel relative to each of the flow outlets to change the size of the gap between each of the valve cores and each of the flow outlets, thereby adjusting the flow rate of each of the flow outlets to achieve a uniform flow rate.

2. The outlet flow control unit as claimed in claim 1, wherein the elastic element includes a spring that can be selected with different spring weights depending on the different pressure differences caused by the distance between the inlet and each outlet of the manifold.

3. A manifold structure, comprising: a manifold including an inlet and a plurality of outlets, wherein each of the outlets is provided with a connector, the connector having a connecting end, an exposed end, and a channel formed between the connecting end and the exposed end, the connecting end being disposed at the outlet and having a flow inlet for communicating with the outlet, the exposed end having a flow outlet, and the channel communicating with the flow inlet and the flow outlet; and a plurality of outlet flow control units disposed within each of the channels of each connector, the outlet flow control unit comprising: A valve core is disposed within the channel, and a gap exists between the valve core and the outlet. An elastic element is tightly fitted onto the valve core. The different pressure differences generated by the distance between the inlet and each outlet cause each elastic element to move and deform axially along each channel relative to each outlet, thereby driving each valve core to move axially along each channel relative to each outlet to change the size of the gap between each valve core and each outlet, thereby adjusting the flow rate of each outlet to achieve uniform flow.

4. The branch pipe structure as claimed in claim 3, wherein the exposed end has an end wall having the outlet, and a first end of one of the elastic elements is close to or abuts against the inner side of the end wall.

5. The branch pipe structure as claimed in claim 4, wherein a stop portion is provided in the channel, the stop portion is adjacent to the connecting end, a second end of one of the elastic elements is close to or abuts against the stop portion, and the elastic element is positioned between the end wall and the stop portion.

6. The manifold structure as claimed in claim 4, wherein the outer diameter of the first end of the elastic element is greater than the diameter of the outlet and / or the inner diameter of the first end of the elastic element is smaller than the diameter of the outlet.

7. The manifold structure as claimed in claim 4, wherein the inner diameter of the first end of the elastic element is smaller than the outer diameter of the valve core.

8. The manifold structure as described in claim 3, wherein the cross-sectional area of ​​the valve core is smaller than the cross-sectional area of ​​the outlet.

9. The manifold structure as claimed in claim 3, wherein the plurality of elastic elements of the outlet flow control units comprise different spring weights.

10. The manifold structure as claimed in claim 3, wherein the plurality of elastic elements of the outlet flow control units are selected with different spring weights depending on the location of the outlet flow control units at the outlets.

11. The manifold structure as claimed in claim 3, wherein the plurality of elastic elements of the outlet flow control units are selected with different spring weights based on the pressure difference generated by the distance between the inlet and the outlet of the manifold.

12. The manifold structure as claimed in claim 3, wherein the spring rate of the elastic element disposed at the front outlet, which is closer to the inlet, and the spring rate of the elastic element disposed at the rear outlet, which is farther from the inlet, is less than the spring rate of the elastic element disposed at the rear outlet.

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