CN2344597Y

CN2344597Y - Multi-stage water-jetting pumping device

Info

Publication number: CN2344597Y
Application number: CN 98227937
Authority: CN
Inventors: 冯宝林
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-28
Filing date: 1998-09-28
Publication date: 1999-10-20
Anticipated expiration: 2008-09-28

Abstract

The utility model relates to a multi-stage water-jetting pumping device which belongs to a fluid transportation machine. The diffusive mixing chamber of the first stage jet pipe is provided with an inlet channel and a water absorption tube. The inner end of the inlet channel is provided with a spraying nozzle, and the front end of the first stage jet pipe is connected with a second stage jet pipe with a second spraying nozzle. The front end of the second stage jet pipe is connected with a three stage jet pipe with a third spraying nozzle and a diffusion chamber thereof, and a diffusion chamber is disposed between the second spraying nozzle and the third spraying nozzle. The utility model adopting the movable connection is convenient for repair and installation, and can reach the high vacuum degree of more than 750 mmHg. The utility model is widely applied to chemical industry, metallurgy industry, the power plant, mineral concentration industry, medicine industry, etc., and is especially suitable for being used in fluid transportation, vacuum suction, etc.

Description

Multistage jetting aspirator

The utility model relates to fluid conveying machine, particularly aspirates the jet aspirator of fluid.

At present, the device that utilizes the fluid suction all is to adopt the jet suction, has the fluid of certain pressure, through nozzle ejection high-velocity fluid, utilize jet current principle, in explosion chamber, form certain degree of vacuum, thereby make the fluid that suction will be carried in the suction pipe, after mixing, be transported to certain device.But the degree of vacuum of its suction is all lower, and all below 500mmHg, because degree of vacuum is lower, so the flow of suction fluid is all very little, its efficient is also low, and is poorer especially for its effect in the manufacturing processs such as filtration, dialysis for general degree of vacuum.

The purpose of this utility model provides a kind of jetting aspirator that can produce condition of high vacuum degree.

The technological scheme that realizes the utility model purpose is to adopt a kind of multistage jetting aspirator, the diffusion mixing chamber of its one-level jet pipe has intake pipe and suction sleeve, nozzle is equipped with in the inner of intake pipe, it is characterized in that: the front end of a, one-level jet pipe is fitted with the secondary jets pipe with second nozzle; B, three grades of jet pipes with the 3rd nozzle and explosion chamber thereof are housed at the front end of secondary jets pipe; C, an explosion chamber is arranged between second nozzle and the 3rd nozzle.

The utility model adopts after the above-mentioned multistage connection, aspiration vacuum level in its one-level jet pipe obtains the big raising of level, degree of vacuum can reach about 750mmHg, its principle is when aspirating through one-level (once) jet pipe, Negative Pressure Difference in suction port and outlet port is generally about 400mmHg, if after having added the one-level jet pipe, the aspiration vacuum level of one-level jet pipe will be improved, and can reach about 550mmHg.Same reason is three grades of jetting aspirators that three jet pipes connect if increase one-level again, and the aspiration vacuum level of its one-level jet pipe can reach about 750mmHg, reaches the purpose of condition of high vacuum degree.Produce different leakinesses according to the precision of making and the level of installation, it is low also can to make aspiration vacuum level have height to have, and generally by three grades of jet suctions, its aspiration vacuum level that make, the installation level is high also can reach more than the 750mmHg.If also need improve aspiration vacuum level, can also increase the progression that connects level so, can reach 4 grades or 5 grades, it is very difficult to surpass 5 grades of raisings that connect its aspiration vacuum level, its reason is the influence that is subjected to manufacture level, installation level, and its leakage rate increases, and makes difficulty, cost raising.

The utility model is for reaching easy for installation, easy to maintenance, and wherein many places Placement of employing activity all is welded with adpting flange as the intake pipe in the one-level jet pipe, to make things convenient for the maintenance and installation of intake pipe; The one-level jet pipe is that flange is connected with the secondary jets pipe; Secondary jets Guan Yusan level jet pipe is that flange connects, and being connected also can adopt between above-mentioned one-level and secondary, secondary and the three grades of jet pipes is threaded.In order to make full use of the function of multistage jetting aspirator, so the explosion chamber of three grades of jet pipes is manufactured toroidal cavity, and connect auxiliary inlet hole, and the time spent inlet hole can be connected pumping tube to suck fluid, the time spent can will not assist inlet hole to block with plug.

The utlity model has the required condition of high vacuum degree of suction, so the wide range of its application is general, can be used for industries such as chemical industry, metallurgy, power plant, ore dressing, medicine, be specially adapted to the conveying of fluid, technologies such as aspiration vacuum are used.

The embodiment who provides below in conjunction with accompanying drawing is further described the utility model.

Fig. 1 is the structural representation of multistage jetting aspirator.

Referring to Fig. 1, wherein one-level jet pipe (1) adopts steel pipe to constitute diffusion mixing chamber (2), the flange (11) of burn-oning in the rear end of diffusion mixing chamber (2), at diffusion mixing chamber (2) one side the suction sleeve of burn-oning (9), go up welded flange (10) at suction sleeve (9).The outer end of intake pipe (4) flange (12) of burn-oning, the centre adpting flange (5) of burn-oning, the flange (7) that has the gradient in the middle of the inner welding of intake pipe (4) is gone up, on flange (7), load onto nozzle (3), use cover plate (8) to press again, and be screwed, the diffusion mixing chamber (2) of then intake pipe (4) being packed into, adpting flange (5) also is screwed with flange (11).Secondary jets pipe (16) adopts casting to make housing, and two termination all has flange plate, and second nozzle (17) is equipped with in its inside, and rear end flange plate and flange (13) are fixing with 4 screws (15), is filled with seal ring (14) in the middle of two flanges.Three grades of jet pipes (26) adopt casting to make housing, two termination all has flange plate, the 3rd nozzle (20) is fixed with screw (23) in its inside, at the 3rd nozzle (20) front end conduit (25) is housed, between conduit (25) and the 3rd nozzle (20) certain clearance is arranged, and this gap is communicated with the explosion chamber (21) of the 3rd nozzle (20) periphery, explosion chamber (21) is a toroidal cavity, on three grades of jet pipe housings, have an auxiliary inlet hole (22) and be communicated with, on auxiliary inlet hole (22), plug is housed with explosion chamber (21).Adopt flange to be connected between secondary jets pipe (16) and the three grades of jet pipes (26), fixing with 3 bolts (19), be filled with seal ring (24) between two flanges, between second nozzle (17) outlet port and the 3rd nozzle (20) inlet, have a cavity to constitute an explosion chamber (18).

After tested, the hydraulic pressure of intaking when intake pipe (3) reaches 0.35MPa, and when flow was 25T/, the degree of vacuum that suction sleeve (9) is located was between 750-755mmHg, and the degree of vacuum that auxiliary inlet hole (22) is located is between 250-300mmHg.

Claims

1, a kind of multistage jetting aspirator, the diffusion mixing chamber (2) of its one-level jet pipe (1) has intake pipe (4) and suction sleeve (9), and nozzle (3) is equipped with in the inner of intake pipe (4), it is characterized in that:

The front end of a, one-level jet pipe (1) is fitted with the secondary jets pipe (16) with second nozzle (17);

B, be fitted with three grades of jet pipes (26) with the 3rd nozzle (20) and explosion chamber (21) thereof at the front end of secondary jets pipe (16);

C, between second nozzle (17) and the 3rd nozzle (20), an explosion chamber (18) is arranged.

2, multistage jetting aspirator according to claim 1, it is characterized in that: intake pipe (4) has adpting flange (5).

3, multistage jetting aspirator according to claim 1 is characterized in that: one-level jet pipe (1) is connected for flange with secondary jets pipe (16).

4, aspirator according to claim 1 is characterized in that: secondary jets pipe (16) is connected for flange with three grades of jet pipes (26).

5, multistage jetting aspirator according to claim 1 is characterized in that: the explosion chamber (21) of three grades of jet pipes (26) is a toroidal cavity, and auxiliary inlet hole (22) is connected with explosion chamber (21), on auxiliary inlet hole (22) plug is housed.