Buffer device for outlet pipeline of diaphragm pump

Abstract

The utility model discloses a buffer device for a diaphragm pump outlet pipeline, which comprises a buffer tank connected with a diaphragm pump pipeline, the buffer tank is provided with a tank body and a cover body arranged at the top of the tank body, a buffer assembly is arranged between the cover body and an inner cavity of the tank body, and the buffer assembly comprises a buffer plate and a buffer diaphragm. The buffer plate is transversely arranged on the inner top of the tank body, a buffer hole is formed in the buffer plate, a transversely-arranged buffer diaphragm is arranged on the inner bottom wall of the cover body, and a pressure gauge and a pressure switch are connected to the upper portion of the cover body. After the technical scheme is adopted, according to the buffer device for the outlet pipeline of the diaphragm pump, the buffer tank is additionally arranged on the outlet pipeline of the diaphragm pump, and the buffer assembly formed by combining the buffer hole, the buffer diaphragm and the like is installed in the buffer tank, so that the service life of a pipeline system can be prolonged; pressure fluctuation in a fluid pipeline is eliminated, and the stability of the system is improved; gas is not in contact with liquid, and the property of conveyed liquid can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a buffer device for an outlet pipeline of a diaphragm pump. Background Art

[0002] The diaphragm pump transports the medium through reciprocating motion. The instantaneous flow rate of its suction and output pulsates over time according to a trigonometric function relationship. At this time, pressure compensation must be performed to ensure the stability of the inlet and outlet pipeline pressures.

[0003] Because the traditional diaphragm pump outlet pipeline has no buffer tank, on the one hand, the pipeline is prone to vibration during the operation of the pump, which can cause the pipeline support to fall off and the flange to loosen, resulting in material leakage; on the other hand, it will cause large fluctuations in the pipeline flow, affecting the accuracy of the feed amount. Utility Model Content

[0004] In view of the above problems, the utility model provides a buffer device for the outlet pipeline of a diaphragm pump.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a buffer device for a diaphragm pump outlet pipeline, comprising a buffer tank connected to the diaphragm pump pipeline, the buffer tank having a tank body and a cover body arranged on the top of the tank body, a buffer assembly is arranged between the cover body and the inner cavity of the tank body, the buffer assembly includes a buffer plate and a buffer diaphragm, the buffer plate is transversely arranged on the inner top of the tank body, a buffer hole is opened on the buffer plate, and a transversely arranged buffer diaphragm is arranged on the inner bottom wall of the cover body.

[0006] Preferably, a pressure gauge and a pressure switch are connected above the cover.

[0007] Preferably, the outer top wall of the cover body is provided with a longitudinal pipe communicating therewith, and the longitudinal pipe is provided with a pressurizing port.

[0008] Preferably, the pressure gauge is mounted on the top of the longitudinal pipe, and the pressure switch is arranged on the other side of the longitudinal pipe.

[0009] Preferably, an inner groove is provided on the inner top wall of the tank body, and the inner groove is located on the outer side of the buffer plate.

[0010] Preferably, the tank body and the cover body are fastened together by locking bolts.

[0011] Preferably, bolt holes are provided at corresponding positions of the tank body and the cover body, and the locking bolts lock the tank body and the cover body through the bolt holes.

[0012] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0013] The utility model provides a buffer device for a diaphragm pump outlet pipeline. By adding a buffer tank to the diaphragm pump outlet pipeline, and installing a buffer component composed of a buffer hole and a buffer diaphragm in the buffer tank, the service life of the pipeline system can be extended; the pressure fluctuation in the fluid pipeline is eliminated to increase the stability of the system; the gas and liquid are not in contact, and the properties of the transported liquid can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 This is a schematic diagram of a buffer device for a diaphragm pump outlet pipeline according to the utility model;

[0016] Figure 2 It is a top view of a tank body of a buffer device for a diaphragm pump outlet pipeline according to the utility model;

[0017] Figure 3 The utility model is a bottom view of a cover body of a buffer device for a diaphragm pump outlet pipeline. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0022] Example

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a buffer device for a diaphragm pump outlet pipeline comprises a buffer tank 1 connected to the diaphragm pump pipeline, the buffer tank 1 comprises a tank body 11 and a cover body 12 arranged on the top of the tank body 11, a buffer assembly is arranged between the cover body 12 and the inner cavity of the tank body 11, the buffer assembly comprises a buffer plate 31 and a buffer diaphragm 32, the buffer plate 31 is transversely arranged on the inner top of the tank body 11, and a buffer hole 311 is opened on the buffer plate 31, that is, 9 circles of buffer holes 311 (aperture 2mm) are evenly arranged on the buffer plate 31, which can buffer the damage of the buffer diaphragm 32 caused by the pressure fluctuation at the pump outlet; a transversely arranged buffer diaphragm 32 is arranged on the inner bottom wall of the cover body 12, that is, the buffer diaphragm 32 is made of polytetrafluoroethylene material, thereby ensuring the acid and alkali corrosion resistance of the diaphragm and improving the service life, the buffer diaphragm 32 has a diameter of 30cm and a thickness of 2.5mm, which plays a buffering role and ensures the properties of the conveyed liquid; wherein, the diaphragm pump pipeline 9 is connected to the tank body through a flange. By adopting this structure, a buffer tank 1 is added to the outlet pipeline of the diaphragm pump, and a buffer component composed of a buffer hole 311 and a buffer diaphragm 32 is installed in the buffer tank 1, so that the service life of the pipeline system can be extended; the pressure fluctuation in the fluid pipeline is eliminated to increase the stability of the system; the gas and liquid are not in contact, and the properties of the transported liquid can be guaranteed.

[0024] like Figure 1 As shown, the outer top wall of the cover body 12 is provided with a longitudinal pipe 6 in communication therewith, and a pressurizing port 7 is provided on the longitudinal pipe 6. With this structure, pressurization can be performed through the pressurizing port 7, and the pressurization range is generally between 70-80% of the maximum operating pressure.

[0025] like Figure 1As shown, a pressure gauge 4 and a pressure switch 5 are connected to the top of the cover 12, and the pressure gauge 4 is an on-site pressure gauge 4, and the pressure switch 5 is a remote pressure switch 5. The pressure gauge 4 is mounted on the top of the longitudinal pipe 6, and the pressure switch 5 is arranged on the other side of the longitudinal pipe 6. The side of the pressure switch 5 away from the longitudinal pipe is connected to the explosion-proof junction box. With this structure, a on-site pressure gauge 4 and a remote pressure switch 5 are provided on the top of the buffer tank 1, that is, the on-site pressure gauge 4 can observe the operation of the diaphragm pump, and the remote pressure switch 5 can be interlocked to switch the diaphragm pump to operate in case of overpressure during operation to protect the diaphragm pump.

[0026] like Figure 2 As shown, an inner groove 11a is provided on the inner top wall of the tank body 11, and the inner groove 11a is located on the outer side of the buffer plate 31. With this structure, the tank body 11 of the buffer tank 1 is provided with inner grooves 11a around it for fixing and sealing.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the tank body 11 and the cover body 12 are fastened together by a locking bolt 82; bolt holes 81 are provided at corresponding positions of the tank body 11 and the cover body 12, and the locking bolt 82 locks the tank body 11 and the cover body 12 through the bolt holes 81. With this structure, 16 bolt holes 81 (with a diameter of 1 cm) are provided around the buffer tank 1, and the cover body 12 and the tank body 11 of the buffer tank 1 can be locked by the M10 locking bolt 82.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A buffer device for a diaphragm pump outlet pipeline, characterized in that: It includes a buffer tank connected to a diaphragm pump pipeline, the buffer tank having a tank body and a cover body arranged on the top of the tank body, a buffer assembly is arranged between the cover body and the inner cavity of the tank body, the buffer assembly includes a buffer plate and a buffer diaphragm, the buffer plate is transversely arranged on the inner top of the tank body, a buffer hole is opened on the buffer plate, and a transversely arranged buffer diaphragm is arranged on the inner bottom wall of the cover body.

2. A buffer device for a diaphragm pump outlet pipeline according to claim 1, characterized in that: A pressure gauge and a pressure switch are connected above the cover.

3. A buffer device for a diaphragm pump outlet pipeline according to claim 2, characterized in that: The outer top wall of the cover body is provided with a longitudinal pipe communicating therewith, and the longitudinal pipe is provided with a pressurizing port.

4. A buffer device for a diaphragm pump outlet pipeline according to claim 3, characterized in that: The pressure gauge is mounted on the top of the longitudinal pipe, and the pressure switch is arranged on the other side of the longitudinal pipe.

5. A buffer device for a diaphragm pump outlet pipeline according to claim 1, characterized in that: An inner groove is formed on the inner top wall of the tank body, and the inner groove is located on the outer side of the buffer plate.

6. A buffer device for a diaphragm pump outlet pipeline according to claim 1, characterized in that: The tank body and the cover body are fastened and connected via locking bolts.

7. A buffer device for a diaphragm pump outlet pipeline according to claim 6, characterized in that: Bolt holes are provided at corresponding positions of the tank body and the cover body, and the locking bolts lock the tank body and the cover body through the bolt holes.

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