CN-224200784-U - Diaphragm chamber structure of diaphragm pump

Abstract

A diaphragm pump diaphragm chamber structure belongs to the technical field of diaphragm pumps, and particularly relates to an improvement of a diaphragm pump diaphragm chamber structure. The utility model comprises a diaphragm chamber cover, a rubber diaphragm and a diaphragm cavity, and is characterized in that a chamber is arranged on one side of the diaphragm chamber cover, a compressing part is arranged on the outer circumference of the chamber, a channel is arranged on the other side of the diaphragm chamber cover, an inlet and an outlet are respectively arranged at two ends of the channel, the chamber is communicated with the channel, a compressing groove corresponding to the compressing part is arranged in the diaphragm cavity, and the edge of the rubber diaphragm is clamped and fixed through the compressing part and the compressing groove in a matched mode. The utility model reduces the production cost and the maintenance cost, has simple structure and reduces the generation of casting defects in the casting process.

Inventors

• TAO ZHENQIANG
• ZHANG GUOFENG
• LI YUAN
• DAI QIPENG
• ZHANG YANG
• ZHANG MEIQI
• WANG ZHIWANG
• Zhao Sihuang
• HAN XIAODONG
• SHI JINGCUN
• ZHANG GUANGXIANG
• WANG SHAOHUA
• SUN DANLONG
• SUN LEI

Assignees

• 中国有色(沈阳)泵业有限公司

Dates

Publication Date

20260505

Application Date

20250814

Claims (7)

1. 1. A diaphragm chamber structure of a diaphragm pump comprises a diaphragm chamber cover (2), a rubber diaphragm (1) and a diaphragm cavity (3), and is characterized in that a chamber (9) is arranged on one side of the diaphragm chamber cover (2), a pressing part (4) is arranged on the outer circumference of the chamber (9), a channel (5) is arranged on the other side of the diaphragm chamber cover (2), an inlet and an outlet are respectively formed in two ends of the channel (5), the chamber (9) is communicated with the channel (5), a pressing groove (10) corresponding to the pressing part (4) is formed in the diaphragm cavity (3), and the edge of the rubber diaphragm (1) is clamped and fixed through the pressing part (4) and the pressing groove (10) in a matched mode.
2. 2. A diaphragm pump diaphragm chamber structure according to claim 1, wherein the chamber (9) of the diaphragm chamber cover (2) is communicated with the channel (5) through a plurality of suction holes (6).
3. 3. The diaphragm chamber structure of the diaphragm pump according to claim 2, wherein at least 3 suction holes (6) are arranged, one suction hole is arranged corresponding to the inlet end and the outlet end of the channel (5), and the rest suction holes are uniformly distributed between the inlet end and the outlet end (6).
4. 4. A diaphragm pump diaphragm chamber structure according to claim 1, wherein a cylinder (12) is provided on one side of the diaphragm chamber cover (2), and the passage (5) is provided in the cylinder (12).
5. 5. A diaphragm chamber structure of a diaphragm pump according to claim 4, wherein a reinforcing rib (11) is provided between the column (12) and the diaphragm chamber cover (2).
6. 6. The diaphragm chamber structure of the diaphragm pump according to claim 4, wherein mounting plates (8) are arranged at two ends of the column body (12), and connecting holes (7) are formed in the mounting plates (8).
7. 7. A diaphragm pump diaphragm chamber structure according to claim 1, wherein said diaphragm chamber (3) is made of carbon steel material.

Description

Diaphragm chamber structure of diaphragm pump Technical Field The utility model belongs to the technical field of diaphragm pumps, and particularly relates to an improvement of a diaphragm chamber structure of a diaphragm pump. Background Under the current industrial development background, the industries of zinc hydrometallurgy and power battery material extraction are presenting vigorous development situations, which makes the market demand for acid corrosion resistant diaphragm pumps increasingly growing. The diaphragm pump is used as key equipment in the zinc hydrometallurgy process, and the material of the overcurrent component of the diaphragm pump not only needs to have excellent corrosion resistance so as to ensure that the diaphragm pump can stably operate in an acidic slurry solution for a long time, but also can work in a high-temperature working environment, thereby effectively relieving the problem of acid corrosion resistance aggravation caused by temperature rise. As a key device for transporting corrosive media, the corrosion-resistant diaphragm pump has a material of stainless steel or titanium alloy as a material of an overflow part, and the material is excellent in corrosion resistance. However, diaphragm pumps themselves are large devices, the diaphragm chamber and diaphragm chamber cover of which are typically cast, large in size and heavy in weight. As shown in figures 4-6, the structure of the traditional corrosion-resistant diaphragm pump is that an insertion part 40 is arranged on a diaphragm chamber cover 20, the insertion part 40 is matched with a diaphragm chamber 30, the insertion part 40 and the diaphragm chamber 30 are used for fixing a rubber diaphragm 10 together, an inlet and an outlet are arranged on two sides of the diaphragm chamber 30, through holes corresponding to the inlet and the outlet are formed in the insertion part 40, a medium enters from the inlet and flows out from the outlet through the through holes of the insertion part 40, and when the whole process operates in an acid environment, the diaphragm chamber and the diaphragm chamber cover are contacted with a transmission medium, so that two large castings of the whole diaphragm chamber are required to use stainless steel or titanium alloy mediums, the manufacturing cost is high, the diaphragm chamber is easy to corrode, and periodic inspection and replacement are required. This not only increases the equipment manufacturing and maintenance costs, but also may result in extended equipment downtime due to high maintenance difficulties, thereby affecting the continuous operation rate and profitability level of the user equipment. Disclosure of utility model The utility model aims at the problems and provides a corrosion-resistant diaphragm pump diaphragm chamber structure. The utility model adopts the following technical scheme that the novel rubber diaphragm comprises a diaphragm chamber cover, a rubber diaphragm and a diaphragm cavity, and is characterized in that a cavity is arranged on one side of the diaphragm chamber cover, the outer circumference of the cavity is provided with a pressing part, a channel is arranged on the other side of the diaphragm chamber cover, two ends of the channel are respectively provided with an inlet and an outlet, the cavity is communicated with the channel, a pressing groove corresponding to the pressing part is arranged in the diaphragm cavity, and the edge of the rubber diaphragm is clamped and fixed through the pressing part and the pressing groove in a matched mode. As a preferable mode of the utility model, the cavity of the diaphragm chamber cover is communicated with the channel through a plurality of sucking holes. Further, at least 3 material sucking holes are arranged, one material sucking hole is arranged corresponding to the inlet end and the outlet end of the channel, and the rest material sucking holes are uniformly distributed between the inlet end and the outlet end. As another preferable mode of the utility model, a column is arranged on one side of the diaphragm chamber cover, and the channel is arranged in the column. Further, a reinforcing rib is arranged between the main body and the diaphragm chamber cover. Further, mounting plates are arranged at two ends of the column body, and connecting holes are formed in the mounting plates. As a third preferred aspect of the present utility model, the diaphragm chamber is made of carbon steel material. The utility model has the beneficial effects that 1, due to the structural characteristics of the utility model, the rubber diaphragm blocks the medium, so that the medium is not contacted with the diaphragm cavity completely, and the common carbon steel casting can be adopted to replace the stainless steel casting, thereby reducing the production cost. 2. The diaphragm cavity is not in direct contact with corrosive media, so that maintenance cost for daily inspection and replacement is reduced. 3. The diaphragm cav