CN2049291U

CN2049291U - High-efficiency jet pump

Info

Publication number: CN2049291U
Application number: CN 88213015
Authority: CN
Inventors: 陈立成
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-09-07
Filing date: 1988-09-07
Publication date: 1989-12-13

Abstract

The utility model relates to a high-efficiency jet pump, comprising a high pressure water pipe, a lifting tube, a lifting nozzle, a high pressure primary stream multinozzle and a supporting and a mixing chambers. The utility model is characterized in that through changing the outlet cross-sectional shape of the high pressure primary stream nozzle or designing the original single nozzle into the multinozzle, the utility model consequently improves the energy exchange condition of the high speed primary stream and the low speed secondary stream and improves the stability in the stream body mixing process, in order to achieve the purposes of high efficiency, stabilization and low noise.

Description

High-efficiency jet pump

The utility model relates to a kind of Jet injector, particularly relates to a kind of can the improvement once and flows and secondary flow energy interchange condition, to improve the Jet injector of its working efficiency.

Existing Jet injector simple in structure, reliable operation needs maintaining hardly after coming into operation, operate also very simply, is a kind of equipment of widely used conveyance fluid.Because existing Jet injector has only a taper high speed flow jet pipe, during work, one big burst of garden cylindricality of ejection once flows at a high speed with the low speed secondary flow of inhaling the suction of stream pipe carries out energy interchange, moment before energy interchange, because the centre of flow section (shown in Fig. 1 b) is that garden shape is once flowed, be garden annular secondary flow on every side, so its exchange interfacial area is very little when carrying out energy interchange, and velocity gradient is very big, to produce large scale high strength vortex like this, thereupon will form one bigger adverse current, this adverse current must be overcome to drive by follow-up once stream advances, so cause lot of energy consumption, thereby make the inefficiency of Jet injector, moreover because the impact force that the large scale vortex produces makes the noise and the also aggravation thereupon of vibration of Jet injector.

Aim of the present utility model is to provide a kind of improved Jet injector, to improve the working efficiency of Jet injector, reduces its noise, reduces vibration.

The utility model can be solved by following two schemes.

Scheme 1: the jet injector with high efficiency of the utility model is by high-pressure water pipe, water pipe, suction sleeve, the suction nozzle, mixing chamber constitutes, it is characterized in that once flowing jet pipe at a high speed is made up of a plurality of jet pipes, and for jet pipe is reduced because of size, tube wall attenuation and cause vibration, also being furnished with a jet pipe that adapts with multi nozzle supports, the outer wall that jet pipe supports is a garden table top, inwall adapts with the water sucting cavity molded lines of suction nozzle, multi nozzle (3) is made of the pipe more than 2 at least, and the outlet section configuration is garden shape or ellipse garden shape fan-shaped or bent limit polygonal or cross, polygonal star and their combination.Airflow fence in mixing chamber, can pack into to improve the stability of fluid, can make cross section tapered or the trough of belt garden tubular or the stepped shaft etc. of mixing chamber in addition, to strengthen the mixing of first and second fluid.When first and second stream carries out energy interchange, at a high speed once stream will be by original sub-thread big garden cylindrical stream become the multiply small size and once flow, and be distributed in the middle of the low speed secondary flow, although velocity gradient is still bigger between first and second stream, but because one, second-rate contact interface is multiplied, and the vortex that forms is many, little, a little less than, energy loss is greatly reduced, greatly increase so useful power exchanges, thereby raise the efficiency, reduce noise, reduce vibration, also can reduction work pulsation.

Scheme 2: another solution of the present utility model is that Jet injector is made of high-pressure water pipe, suction sleeve and suction nozzle, mixing chamber, the outlet section configuration that it is characterized in that once flowing at a high speed jet pipe is the arbitrary geometrical shape beyond the shape of garden, be garden annular or cross or polygonal star and their combination or the like, and in mixing chamber, set up airflow fence or make the cross section of mixing chamber be taper or trough of belt garden tubular or stepped shaft etc., to improve the stability in the fluid mixing process, strengthen the mixing of first and second fluid, reduce its noise, reach the purpose of efficient stable.

The utility model is described in further detail below in conjunction with accompanying drawing.But the utility model is not limited to shown in the accompanying drawing.

Fig. 1 a and Fig. 1 b are an embodiment of the Jet injector of the utility model;

Fig. 2 is another embodiment of the Jet injector of the utility model;

With reference to Fig. 1 a, the jet injector with high efficiency of the utility model is by high-pressure water pipe (1), suction sleeve (2), high pressure once flows multi nozzle (3), suction nozzle (4), mixing chamber (5) and support high pressure once flow multi nozzle and support (6) formation, wherein multi nozzle (3) is made of five garden shape pipes, center line is distributed on the cross section, garden of 432mm, adopt bolt to make it to be fixed on the outlet end of high-pressure water pipe (1), five jet pipes penetrate the center portion that jet pipe supports (6), as Fig. 1 a, shown in the 1b, make it be subjected to fixed support, inwall and water sucting cavity molded lines that jet pipe supports (6) adapt, and the outer wall that is the garden table top closely cooperates with suction nozzle (4), and the two ends of suction nozzle (4) are separately fixed at by bolt on the outer pipe of suction sleeve (2) and on the mixing tube.The cross section employing cone-apex angle of mixing chamber (5) is 5 ° a taper.

With reference to Fig. 2, another Jet injector of the present utility model is made of high-pressure water pipe (1), suction sleeve (2) jet pipe (3), suction nozzle (4), mixing chamber (5), its mesohigh once flows jet pipe (3) is the garden annular for the outlet section single jet pipe, or high pressure once flow jet pipe (3) for the outlet section be criss-cross single jet pipe, they are all by on the outlet end that is bolted to high-pressure water pipe (1), and all the other each structural type and connecting relations partly are all identical with first embodiment.For preventing vibration, the support of use is also similar with first example.

Claims

1, a kind of jet injector with high efficiency, it is by high-pressure water pipe (1), suction sleeve (2), suction nozzle (4), mixing chamber (5) constitutes, and it is characterized in that once flowing jet pipe (3) at a high speed is made up of a plurality of jet pipes, and is furnished with the jet pipe that adapts with a plurality of jet pipes (3) and supports (6).

2, Jet injector according to claim 1, it is characterized in that multi nozzle (3) is made of the pipe more than 2 at least, and the outlet section configuration is a garden shape, any in ellipse garden shape, fan-shaped, bent limit polygonal, cross, polygonal star and other Any shape, and their combination.

3, Jet injector according to claim 1 is characterized in that jet pipe supports the inwall of (6) and the water sucting cavity molded lines of suction nozzle (4) adapts, and outer wall is a garden table top.

4, Jet injector according to claim 1, the cross section that it is characterized in that above-mentioned mixing chamber (5) are taper, trough of belt garden tubular, stepped shaft.

5, Jet injector according to claim 1 is characterized in that also can adorning airflow fence in the mixing chamber (5).

6, a kind of jet injector with high efficiency, it is by high-pressure water pipe (1), suction sleeve (2), suction nozzle (4), mixing chamber (5) constitutes, and the outlet section that it is characterized in that once flowing at a high speed jet pipe (3) is the arbitrary geometric form beyond the shape of garden.

7, Jet injector according to claim 6, the outlet section that it is characterized in that described jet pipe (3) can be garden annular, fan-shaped, cross, polygonal star and other various geometric forms, and their combination.

8, Jet injector according to claim 6 is characterized in that the cross section of mixing chamber (5) can be taper, trough of belt garden tubular, stepped shaft and other any geometric form.

9, Jet injector according to claim 6 is characterized in that the airflow fence of can packing in the mixing chamber (5).