CN202833342U

CN202833342U - Low-energy consumption steam-ejection vacuum pump diffusion chamber structure

Info

Publication number: CN202833342U
Application number: CN 201220531181
Authority: CN
Inventors: 何杰
Original assignee: NANTONG SAFE MACHINERY EQUIPMENT CO Ltd
Current assignee: NANTONG SAFE MACHINERY EQUIPMENT CO Ltd
Priority date: 2012-10-17
Filing date: 2012-10-17
Publication date: 2013-03-27
Anticipated expiration: 2022-10-17

Abstract

The utility model relates to a low-energy consumption steam-ejection vacuum pump diffusion chamber structure which comprises a working jet, a mixing chamber and a diffusion chamber, wherein the front end of the mixing chamber stretches into the working jet in the mixing chamber, the rear end of the mixing chamber is in series connection with the diffusion chamber and a suction inlet is arranged on an lateral wall of the mixing chamber. The innovative point of the low-energy consumption steam-ejection vacuum pump diffusion chamber structure is that the volume of the mixing chamber is nine to eleven times as large as that of a hollow throat segment of the diffusion chamber, the hollow throat segment of the diffusion chamber adopts front-rear two-stage compression, the gradient of the front stage compression segment is 12 degrees and the gradient of the rear stage compression is 10 degrees. The low-energy consumption steam-ejection vacuum pump diffusion chamber structure has the advantages of providing continuous expansion space to the steam to ensure that the steam can be better mixed with pumped gases and meanwhile reduces resistance to mixing. A single-stage compression segment of an original diffusion chamber becomes a two-stage compression segment to prevent the steam from beating the mixing chamber, the gas in the two-stage compression segment is more smooth in change of velocities and steam power is reduced.

Description

A kind of low energy consumption steam jet vaccum explosion chamber structure

Technical field

The utility model relates to a kind of low energy consumption steam jet vaccum explosion chamber structure, particularly a kind of low energy consumption steam jet vaccum explosion chamber structure of bleeding effective.

Background technique

Low energy consumption steam jet vaccum explosion chamber structure is because rate of air sucked in required is large, operating range is wide, simple in structure, the parts that do not have relative movement, be a kind of broad-spectrum vacuum equipment, be mainly used in the aspects such as degasification, decolouring, drying, deodorization, distillation, refrigeration and conveying.Particularly it is to sucking the gas non-selectivity, in food production, petrochemical industry, grease processing, production of polyester, contain the occasions such as the material of organic solvent is concentrated, compares with oil-sealed rotary pump and demonstrates remarkable advantage.

In at present traditional low energy consumption steam jet vaccum explosion chamber structure, single stage compression is adopted in the compressing section, and the fluctuation of mixed gas velocity variations is larger, increases power consumption, and pumping efficiency is low.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of low energy consumption steam jet vaccum explosion chamber structure of bleeding effective.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of low energy consumption steam jet vaccum explosion chamber structure, comprise main jet, mixing chamber and explosion chamber, the mixing chamber front end is installed the main jet that stretches in the mixing chamber, mixing chamber rear end series connection explosion chamber, the mixing chamber sidewall is opened suction port, and explosion chamber is divided into compressing section, trunnion section and diffuser from front to back successively; Its innovative point is: described mixing chamber volume is the long-pending 9-11 of explosion chamber trunnion segment body times; Two-stage Compression before and after adopt the explosion chamber compressing section, the prime compressing section gradient is 12 °, the rear class compressing section gradient is 10 °.

The utility model has the advantage of:

1 mixing chamber volume and explosion chamber trunnion section volume ratio increase, and purpose provides steam and continues the expansion space, can better mix with pumped gas, reduces simultaneously mixing resistance;

2 explosion chamber compressing sections become twin-stage by original single stage compression, prevent that steam from getting on the mixing chamber, and second mixed gas velocity variations is more steady, reduce the steam power loss.

Description of drawings

Fig. 1 is the utility model low energy consumption steam jet vaccum explosion chamber structural representation.

Embodiment

As shown in Figure 1, mixing chamber 2 front ends are installed the main jet 1 that stretches into mixing chamber 2, and the rear end arranges explosion chamber, and mixing chamber 2 sidewalls are opened suction port a.

Explosion chamber is divided into compressing section 31, trunnion section 32 and diffuser 33 from front to back successively; Mixing chamber 2 volumes are 9-11 times of explosion chamber trunnion section 32 volumes.Two-stage Compression before and after adopt explosion chamber compressing section 31, the prime compressing section gradient is 12 °, the rear class compressing section gradient is 10 °.

Claims

1. low energy consumption steam jet vaccum explosion chamber structure, comprise main jet, mixing chamber and explosion chamber, the mixing chamber front end is installed the main jet that stretches in the mixing chamber, mixing chamber rear end series connection explosion chamber, the mixing chamber sidewall is opened suction port, and explosion chamber is divided into compressing section, trunnion section and diffuser from front to back successively; It is characterized in that: described mixing chamber volume is the long-pending 9-11 of explosion chamber trunnion segment body times; Two-stage Compression before and after adopt the explosion chamber compressing section, the prime compressing section gradient is 12 °, the rear class compressing section gradient is 10 °.