Mechanical vacuum pump unit with refrigeration equipment
A technology of mechanical vacuum pumps and refrigeration equipment, which is applied in mechanical equipment, machines/engines, lighting and heating equipment, etc. It can solve the problems of Roots vacuum pump explosion, gas temperature rise, jamming, etc., to ensure space heat dissipation and cooling heat dissipation Effect
Pending Publication Date: 2021-03-16
西安向阳新环保科技有限公司
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AI Technical Summary
Problems solved by technology
The temperature of the gas rises, causing the rotor and stator to expand slightly and cause friction or even completely stuck
In severe cases, the Roots vacuum pump will explode
Method used
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Embodiment Construction
[0017] A kind of mechanical vacuum pump unit with refrigeration equipment of the present invention, as figure 1 As shown, it includes: three-stage Roots vacuum pump groups, Roots vacuum pumps connected by multiple parallel pipelines in all levels of Roots vacuum pump groups; Roots vacuum pump groups at all levels are connected in series from front to back to form gas circulation channel.
[0018] The first-stage Roots vacuum pump group 1 at the front end is connected with the vacuum tank 4 through pipelines, and is used for sucking the gas in the vacuum tank 4 .
[0019] The gas cooler 9 is connected in series on the series pipeline between the second-stage Roots vacuum pump group 7 and the third-stage Roots vacuum pump group 11; the gas cooler 9 is used to cool down the gas output by the second-stage Roots vacuum pump group 7, And the cooled gas is delivered to the three-stage Roots vacuum pump group 11.
[0020] The front-stage vacuum pump group 13 is composed of a plurali...
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The invention discloses a mechanical vacuum pump unit with refrigeration equipment. The mechanical vacuum pump unit with the refrigeration equipment comprises three stages of roots vacuum pump sets, agas cooler and a preceding-stage vacuum pump set, wherein roots vacuum pumps connected through multiple parallel pipelines are arranged in each stage of roots vacuum pump set; the stages of roots vacuum pump sets are sequentially connected in series through pipelines from front to back; the first-stage roots vacuum pump set at the front end is connected with a vacuum tank through a pipeline; thegas cooler is connected onto a series pipeline between the second-stage roots vacuum pump set and the third-stage roots vacuum pump set in series; the gas cooler is used for cooling the gas output bythe second-stage roots vacuum pump set and conveying the cooled gas into the third-stage roots vacuum pump set; the preceding-stage vacuum pump set is composed of multiple vacuum pumps connected through multiple parallel pipelines; an inlet of the preceding-stage vacuum pump set is connected with an outlet pipeline of the third-stage roots vacuum pump set; and an outlet of the preceding-stage vacuum pump set is emptied. Cooling water of the vacuum pump unit is all constant low-temperature water, a plant provided with the mechanical vacuum pump unit has a cold air environment, and shutdown caused by faults due to heating is avoided.
Description
technical field [0001] The invention belongs to the technical field of vacuum pumps, and in particular relates to a mechanical vacuum pump unit with refrigeration equipment. Background technique [0002] The mechanical vacuum pump unit is widely used in many industrial fields such as chemical industry, food, oil, electronics, metallurgy, etc. It is composed of two or more vacuum pumps according to the vacuum degree and process load required. Usually, the Roots vacuum pump and the backing vacuum pump are connected in series to form a row. When the process load is heavy, another row or even several rows of vacuum pump groups can be connected in parallel. [0003] The mechanical vacuum pump group can all be composed of Roots vacuum pumps, but the efficiency of Roots vacuum pumps that directly exhaust the atmosphere is relatively low, so most of them are composed of Roots vacuum pumps and backing vacuum pumps in series. Foreline vacuum pumps include water ring vacuum pumps, scr...
Claims
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IPC IPC(8): F04C23/00F04C18/12F04C25/02F04C29/04F24F5/00
CPCF04C23/001F04C18/126F04C25/02F04C29/04F24F5/00
Inventor 王宇志王霁
Owner 西安向阳新环保科技有限公司