Intermediate feeding inlet manifold of diaphragm pump

Abstract

The utility model discloses a diaphragm pump middle feeding inlet manifold which comprises an inlet main pipe, the two ends of the inlet main pipe are closed, a plurality of outlet branch pipes and a plurality of inlet branch pipes are arranged on the inlet main pipe at intervals in the length direction of the inlet main pipe, and the inlet branch pipes are connected between the adjacent outlet branch pipes of the inlet main pipe. The diaphragm pump is simple and compact in structure, reasonable in layout, stable in conveying, not prone to medium precipitation and even in material or medium supply, and therefore working efficiency and stability of the diaphragm pump can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pump feeding equipment, in particular to an inlet manifold for intermediate feeding of a diaphragm pump. Background Art

[0002] The inlet manifold is one of the main components of a diaphragm pump. It is located in the pump head component of the diaphragm pump and is used to connect the inlet buffer and the inlet valve, playing a connecting role. It is a channel for transporting the medium from the material supply tank to the diaphragm pump.

[0003] For a multi-cylinder diaphragm pump, which has multiple diaphragm chambers and requires separate feeding. The traditional feeding method of the diaphragm pump is single-side feeding, that is, the conveying medium enters from one end of the inlet main pipe and sequentially passes through multiple outlet branch pipes through straight pipes to separately convey materials to the multi-cylinder diaphragm pump. Due to the flow splitting effect and positional relationship of the outlet branch pipes, it is impossible to evenly supply stable materials to multiple cylinders. Summary of the Utility Model

[0004] Aiming at the above deficiencies existing in the prior art, the purpose of the present utility model is to provide an inlet manifold for intermediate feeding of a diaphragm pump to solve the problem of uneven feeding caused by feeding from one end of the existing material conveying manifold.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: An inlet manifold for intermediate feeding of a diaphragm pump includes an inlet main pipe. Both ends of the inlet main pipe are closed, and multiple outlet branch pipes and multiple inlet branch pipes are arranged at intervals along the length direction of the inlet main pipe. Among them, the inlet branch pipes are located between two adjacent outlet branch pipes of the inlet main pipe.

[0006] As an optimization, there are three outlet branch pipes, including one middle outlet branch pipe and two edge outlet branch pipes on both sides of the middle outlet branch pipe, and they are evenly spaced along the length direction of the inlet main pipe. There are two inlet branch pipes, which are respectively connected between adjacent outlet branch pipes of the inlet main pipe.

[0007] As an optimization, the distance between the connection of the inlet branch pipe and the inlet main pipe and the middle outlet branch pipe is greater than the distance between it and the edge outlet branch pipe.

[0008] As an optimization, multiple outlet branch pipes are on the same straight line, multiple inlet branch pipes are also on the same straight line, and the included angle between the two straight lines and the connection line between the axis lines of the inlet main pipe is provided.

[0009] As an optimization, the included angle is 90°.

[0010] As an optimization, a connecting flange is provided at the end of the inlet branch pipe for detachable connection with the material supply tank through connecting pipe fittings.

[0011] As an optimization, the inlet main pipe is formed by alternately connecting a plurality of tees and steel pipes. Among them, each tee is respectively connected to an outlet branch pipe and an inlet branch pipe, and the projections of the axes of the outlet branch pipe and the inlet branch pipe on the cross-section of the inlet main pipe are perpendicular to each other.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. Compared with single-sided feeding, intermediate feeding can effectively balance the unevenness of feeding among the three cylinders, reduce the vibration of the pump group and the possibility of cavitation; moreover, it improves the utilization efficiency of the inlet buffer, and there is no need to use multiple buffers to balance the feeding pressure, reducing the system complexity of the diaphragm pump.

[0014] 2. By adding flanges to the two inlet branch pipes, the inlet main pipe composed of five tees can be integrally processed, and the dimensional accuracy can be controlled by machining means, reducing the number of welded joints. The interchangeability of the inlet main pipe can be realized, the universality of the pipe manifold can be solved, and the convenience of equipment installation and later replacement of spare parts can be improved.

[0015] 3. Adding flanges to the inlet branch pipes makes the disassembly and transportation of the equipment more flexible and convenient, avoiding the transportation difficulties caused by the huge volume of the inlet pipe manifold of the large diaphragm pump that cannot be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] In the figure: 1 inlet main pipe, 2 outlet branch pipe, 3 inlet branch pipe, 4 connecting flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example 1: Refer to Figure 1 , an inlet manifold for intermediate feeding of a diaphragm pump, comprising an inlet main pipe 1, both ends of the inlet main pipe 1 are closed, and a plurality of outlet branch pipes 2 and a plurality of inlet branch pipes 3 are arranged at intervals along the length direction of the inlet main pipe 1. Among them, the inlet branch pipes 3 are connected between adjacent outlet branch pipes 2 of the inlet main pipe 1. Intermediate feeding can effectively balance the unevenness of feeding between the three cylinders compared with single-sided feeding, reduce the vibration of the pump group and the possibility of cavitation; moreover, it improves the utilization efficiency of the inlet buffer, and there is no need to use multiple buffers to balance the feeding pressure, reducing the system complexity of the diaphragm pump.

[0022] Specifically, although the intermediate feeding method can balance the uniformity of material supply to a certain extent, after the material in the inlet branch pipe 3 enters the inlet main pipe 1, it will disperse evenly to both sides, which easily leads to a larger material supply in the outlet branch pipe 2 at the middle part than that in the outlet branch pipe 2 at the edge. Therefore, in this embodiment, there are three outlet branch pipes 2, including one middle outlet branch pipe 2 and two edge outlet branch pipes 2 located on both sides of the middle outlet branch pipe 2, and they are evenly spaced along the length direction of the inlet main pipe 1. The inlet branch pipes 3 are two and are respectively connected between adjacent outlet branch pipes 2 of the inlet main pipe 1, and the distance between the connection of the inlet branch pipe 3 and the inlet main pipe 1 and the middle outlet branch pipe 2 is greater than the distance between it and the edge outlet branch pipe 2. Multiple outlet branch pipes 2 are on the same straight line, multiple inlet branch pipes 3 are also on the same straight line, and the included angle between the connecting lines of the two straight lines and the axis line of the inlet main pipe 1 is 90°. In this way, under the diversion effect of the outlet branch pipe 2 and the control of the distance between the inlet branch pipe 3 and the outlet branch pipe 2, the material supply of the inlet branch pipe 3 is more inclined to the edge outlet branch pipe 2, and the middle outlet branch pipe 2 is jointly supplied by the two inlet branch pipes 3, so as to achieve uniform material supply for the three outlet branch pipes 2, thereby further improving the uniformity of material supply.

[0023] In order to improve versatility and facilitate disassembly and assembly, a connecting flange 4 is provided at the end of the inlet branch pipe 3 for detachable connection with the material supply tank through connecting pipe fittings. In this way, the combination of the inlet pipe manifold can be flexibly adjusted according to needs to better adapt to diaphragm pumps of different models. By adding flanges to the two inlet branch pipes 3, the inlet main pipe 1 composed of five tees can be integrally processed, and the dimensional accuracy can be controlled by machining means to reduce the number of welded joints. The interchangeability of the inlet main pipe 1 can be realized, the versatility of this pipe manifold can be solved, and the convenience of equipment installation and later replacement of spare parts can be improved. Among them, adding flanges to the inlet branch pipes 3 can simplify the assembly sequence, improve the assembly efficiency and accuracy, reduce the requirements for pipe welding, and at the same time enable the interchangeability of the pipe manifold components. At the same time, adding flanges to the inlet branch pipes 3 makes the disassembly and transportation of the equipment more flexible and convenient, avoiding the transportation difficulties caused by the huge volume of the inlet pipe manifold of large diaphragm pumps that cannot be disassembled.

[0024] The inlet main pipe 1 is formed by alternately connecting multiple tees and steel pipes. Among them, each tee is respectively connected to the outlet branch pipe 2 and the inlet branch pipe 3, and the projections of the axes of the outlet branch pipe 2 and the inlet branch pipe 3 on the cross-section of the inlet main pipe 1 are perpendicular to each other. In this way, the inlet main pipe 1 is convenient for production and assembly, and is also convenient for disassembly, transportation and on-site assembly for large pipe manifolds, improving the flexibility of use.

[0025] In summary, the structure of the utility model is simple and compact, with a reasonable layout, stable conveying, not prone to medium precipitation, and uniform supply of materials or media, thereby being able to improve the working efficiency and stability of the diaphragm pump.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model rather than to limit them. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the utility model without departing from the purpose and scope of the technical solutions shall be covered by the scope of the claims of the utility model.

Claims

1. An inlet manifold for intermediate feeding of a diaphragm pump, characterized in that: The inlet main pipe comprises an inlet main pipe, both ends of which are closed, and a plurality of outlet branch pipes and a plurality of inlet branch pipes are arranged on the inlet main pipe along its length direction at intervals, wherein the inlet branch pipe is located between two adjacent outlet branch pipes of the inlet main pipe.

2. The inlet manifold for intermediate feeding of a diaphragm pump according to claim 1, characterized in that: There are three outlet branch pipes, including a middle outlet branch pipe and two edge outlet branch pipes located on both sides of the middle outlet branch pipe, and are evenly spaced along the length direction of the inlet main pipe. There are two inlet branch pipes, and they are respectively connected between adjacent outlet branch pipes of the inlet main pipe.

3. The inlet manifold for intermediate feed of a diaphragm pump according to claim 1, characterized in that: The distance between the connection point between the inlet branch pipe and the inlet main pipe and the middle outlet branch pipe is greater than the distance between the connection point and the edge outlet branch pipe.

4. The inlet manifold for intermediate feeding of a diaphragm pump according to claim 1, characterized in that: The plurality of outlet branch pipes are located on the same straight line, the plurality of inlet branch pipes are also located on the same straight line, and an angle is formed between the line connecting the two straight lines and the axis line of the inlet main pipe.

5. The inlet manifold for intermediate feeding of a diaphragm pump according to claim 4, characterized in that: The angle is 90°.

6. The inlet manifold for intermediate feeding of a diaphragm pump according to claim 1, characterized in that: A connecting flange is provided at the end of the inlet branch pipe for detachably connecting with the material supply tank through a connecting pipe fitting.

7. The inlet manifold for intermediate feed of a diaphragm pump according to claim 1, characterized in that: The inlet main pipe is formed by alternately connecting a plurality of tees and steel pipes, wherein each tee is connected to the outlet branch pipe and the inlet branch pipe respectively, and the projections of the axes of the outlet branch pipe and the inlet branch pipe on the cross section of the inlet main pipe are perpendicular.

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