CN203783909U - Jet nozzle for self-priming pump - Google Patents
Jet nozzle for self-priming pump Download PDFInfo
- Publication number
- CN203783909U CN203783909U CN201420107039.9U CN201420107039U CN203783909U CN 203783909 U CN203783909 U CN 203783909U CN 201420107039 U CN201420107039 U CN 201420107039U CN 203783909 U CN203783909 U CN 203783909U
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- Prior art keywords
- nozzle
- self
- jet
- section
- priming pump
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- Expired - Fee Related
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Abstract
The utility model discloses a jet nozzle for a self-priming pump. The jet nozzle comprises a first nozzle, a second nozzle and a third nozzle, wherein the first nozzle and the third nozzle are connected by the third nozzle through threads; an inner channel of the first nozzle is through and comprises a constant speed section, a compression section and a diffusion section sequentially from top to bottom; a through hole is longitudinally formed in the middle of the second nozzle and communicated with the first nozzle and the third nozzle, and four air inlets are evenly distributed in the side surface of the second nozzle and communicated with the middle through hole; an inner channel of the third nozzle is through and comprises a compression section, a constant speed section and a diffusion section sequentially from top to bottom. Thejet nozzle is applied to a new self-priming system, so that no auxiliary device is required to be added additionallyon the pump, and the whole pump system is driven by a diesel engine; the jet nozzle has the characteristics of simple structure, low cost, easiness in installation, good self-priming effect and the like.
Description
Technical field
The utility model belongs to injection apparatus technical field, relates in particular to the jet nozzle in a kind of self-suction system that is applied to Self-priming pump.
Background technique
At present, domestic self-priming pump adopts internal-mixing and external mixture type self-priming mode more, and this class self-priming mode has larger defect, and mechanical loss and hydraulic loss are larger; Before pump running, need first at pump chamber, to add water; When running into large flow rate working conditions, be difficult to realize self-priming.And at present less to the research of jet self-priming pump, and current existing jet self-priming pump is all additional auxiliary device, needs two and above driven by motor, and overall structure is more complicated, and operation is inconvenient.
Summary of the invention
The purpose of this utility model is the deficiency overcoming in prior art, and the jet nozzle in a kind of simple in structure, with low cost, easy for installation, self-suction system that is applied to Self-priming pump that self-priming is effective is provided.
The technical solution of the utility model:
A kind of for the jet nozzle on self-priming pump, comprise the first nozzle, second nozzle and the 3rd nozzle, in the middle of described the first nozzle and described the 3rd nozzle, be described second nozzle, described second nozzle is fixing in aggregates by described the first nozzle and described the 3rd nozzle with thread connecting mode; The inner passage of described the first nozzle connects, and is followed successively by the first nozzle at the uniform velocity section, the first nozzle compressing section, the first nozzle diffuser from top to bottom, so that speed increases severely; In the middle of described second nozzle, be a through hole, with the first nozzle and the 3rd nozzle, be connected, described second nozzle side is uniformly distributed four suction ports and is connected with described intermediate throughholes, so that the gas of suction port is discharged; The inner passage of described the 3rd nozzle connects, and is followed successively by the 3rd nozzle compressing section, the 3rd nozzle at the uniform velocity section, the 3rd nozzle diffuser from top to bottom, thereby is easy to, by the Bas Discharged in pump chamber, shorten the time of self-priming.
The beneficial effects of the utility model: the present invention proposes a kind of jet nozzle of the self-suction system for Self-priming pump, this jet nozzle is applied in self-priming system, make this pump not need additional auxiliary device, completely and pump one running body, whole pumping system all will have a diesel engine to drive, air is through jet nozzle, by the significantly step-down of twice, make the first nozzle at the uniform velocity the pressure reduction between Duan Yu tri-nozzle diffusers become very large, thereby more easily by the Bas Discharged in pump chamber, this structure has not only alleviated acting and the energy consumption of compressor, and improved jet nozzle working efficiency, the self-priming time of self-priming pump is shortened greatly, have simple in structure, cost is low, be easy to install, the features such as self-priming is effective.
Accompanying drawing explanation
Fig. 1 is the structural drawing of jet nozzle of the present utility model.
Fig. 2 is the structural drawing of second nozzle of the present utility model.
Fig. 3 is the structural drawing of check valve.
In figure: 1, the first nozzle; 2, second nozzle; 3, the 3rd nozzle; 4, the first nozzle at the uniform velocity section; 5, the first nozzle compressing section; 6, the first nozzle diffuser; 7, the 3rd nozzle compressing section; 8, the 3rd nozzle at the uniform velocity section; 9, the 3rd nozzle diffuser; 10, suction port; 11, suction casing; 12, filter screen; 13, valve seat; 14, spool; 15, clack box; 16, plain cushion block; 17, clack box joint.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
A kind of structure for the jet nozzle on self-priming pump of the present utility model as depicted in figs. 1 and 2, comprising: the first nozzle 1, second nozzle 2, the 3rd nozzle 3, the first nozzle be at the uniform velocity section the 8, the 3rd nozzle diffuser 9, suction port 10 of section the 4, first nozzle compressing section 5, the first nozzle diffuser 6, the 3rd nozzle compressing section 7, the 3rd nozzle at the uniform velocity.
This jet nozzle is applied in the self-suction system of Self-priming pump, it is mainly comprised of three parts: the first nozzle 1, second nozzle 2, the 3rd nozzle 3, the two ends inner ring of second nozzle 2 is threaded, fixing in aggregates with thread connecting mode by second nozzle 2 between the first nozzle 1 and the 3rd nozzle 3.The inner passage of the first nozzle 1 is by the uniform velocity section, compressing section, diffuser three parts form, each section of shape is shown in Fig. 1, its total length 37mm, the first nozzle is section 4 length 10.7mm at the uniform velocity, and 5 angles of inclination, inclined-plane, the first nozzle compressing section are 45 degree, and length is 3.8mm, inlet diameter 10mm, the first nozzle diffuser 6 angle of inclination, inclined-plane 2 degree, length is 22.5mm, imports and exports diameter and is respectively 2.7mm and 4.7mm; Second nozzle 2 has certain thickness and is the screwed hollow cylinder of inner ring of both sides port, because second nozzle 2 is middle, it is a through hole, be used for being communicated with the first nozzle 1 and the 3rd nozzle 3, second nozzle 2 sides are evenly distributed with the suction port 10 of four diameter 13mm and communicate with intermediate throughholes, the flow channel length 40mm of second nozzle 2, internal diameter 21mm, the clack box of the check valve on these four suction ports, 10 meetings and pump is communicated with, and the air in pump chamber is discharged by jet nozzle thus; The inner passage of the 3rd nozzle 3 by compressing section, at the uniform velocity section, diffuser three parts form, its the 3rd nozzle at the uniform velocity section 8 length is 55mm, the 3rd 7 tilt angle, inclined-plane, nozzle compressing section is 50 degree, length is 5mm, inlet diameter 15mm, the 3rd nozzle diffuser 9 tilt angle, inclined-plane are 10 degree, length is 60mm, import and export diameter and be respectively 6mm and 14.5mm, the total length of the 3rd nozzle 3 is 120mm.Between the first nozzle 1 and the 3rd nozzle 3, leave 2 ~ 3mm gap, this gap is aimed at four suction port 10 positions of second nozzle 2, so that the gas of suction port 10 is discharged, the material of whole jet nozzle is HT200.
The working principle of this jet nozzle is:
The first nozzle at the uniform velocity section 4 is connected on the compressor being arranged on pump bracket by flexible pipe, the suction port 10 of second nozzle 2 is connected on the clack box of a check valve, as shown in Figure 3, the structure of this check valve is divided into suction casing 11 and clack box 15 parts, wherein suction casing 11 lower ends are connected to the import pump chamber of pump, and the upper end of suction casing 11 is connected with clack box 15, between clack box 15 and suction casing 11, be embedded with valve seat 13, valve seat 13 lower ends are provided with filter screen 12, through hole is offered in valve seat upper end, and this through hole can connect clack box 15 and suction casing 11; Clack box 15 inside are fixed with plain cushion block 16, are provided with spherical valve core 14 between plain cushion block 16 and through hole, play the effect that turns on and off check valve, are also provided with clack box joint 17 on clack box 15, and this clack box joint 17 is used for connecting jet nozzle.
The 3rd nozzle diffuser 9 is communicated with air.When pump brings into operation, diesel engine impeller is rotated, compressor starts work simultaneously also produces pressurized air, high-speed compressed air by the first nozzle at the uniform velocity section 4 through the first nozzle compressing section 5, the rear speed of the first nozzle diffuser 6 increases severely, the compressed air pressure that arrives second nozzle 2 sharply declines, because be barometric pressure in original pump chamber, so due to differential pressure action, the air of pump suction casing enters second nozzle 2 by check valve and is discharged from, again after the compression of the 3rd nozzle compressing section 7 and the diffusion of the 3rd nozzle diffuser 9, pressure sharply declines again, finally be discharged from nozzle.Pressurized air from the first nozzle at the uniform velocity section 4 to the process of the 3rd nozzle diffuser 9, significantly step-down through twice, make the first nozzle at the uniform velocity the pressure reduction of section between the 4 and the 3rd nozzle diffuser 9 become very large, be conducive to pressurized air from the first nozzle at the uniform velocity section 4 ends enter and discharge from the 3rd nozzle diffuser 9, thereby more easily by the Bas Discharged in pump chamber, once after the normal work of compressor, its load will sharply decline, this structure has not only alleviated acting and the energy consumption of compressor, and improved jet nozzle working efficiency, the self-priming time of self-priming pump is shortened greatly.
Claims (5)
1. one kind for the jet nozzle on self-priming pump, it is characterized in that: comprise the first nozzle (1), second nozzle (2) and the 3rd nozzle (3), in the middle of described the first nozzle (1) and described the 3rd nozzle (3), be described second nozzle (2), described second nozzle (2) is fixing in aggregates by described the first nozzle (1) and described the 3rd nozzle (3) with thread connecting mode; The inner passage of described the first nozzle (1) connects, and is followed successively by the first nozzle at the uniform velocity section (4), the first nozzle compressing section (5), the first nozzle diffuser (6) from top to bottom; In the middle of described second nozzle (2), be a through hole, with the first nozzle (1) and the 3rd nozzle (3), be connected, there are several suction ports (10) side of described second nozzle (2) are connected with described through hole; The inner passage of described the 3rd nozzle (3) connects, and is followed successively by the uniform velocity section (8), the 3rd nozzle diffuser (9) of the 3rd nozzle compressing section (7), the 3rd nozzle from top to bottom.
2. according to claim 1 a kind of for the jet nozzle on self-priming pump, it is characterized in that: described the first nozzle compressing section (5) is wide at the top and narrow at the bottom, and the angle of inclination, inclined-plane of passage is 45 degree; Described the first nozzle diffuser (6) is up-narrow and down-wide, and the angle of inclination, inclined-plane of passage is 2 degree; Described the 3rd nozzle compressing section (7) is wide at the top and narrow at the bottom, and the angle of inclination, inclined-plane of passage is 50 degree; Described the 3rd nozzle diffuser (9) is up-narrow and down-wide, and the angle of inclination, inclined-plane of passage is 10 degree.
3. according to claim 1 a kind of for the jet nozzle on self-priming pump, it is characterized in that: described second nozzle (2) is the screwed hollow cylinder of inner ring of both sides port, the suction port of described column side face (10) is 4, around side, is uniformly distributed.
4. according to claim 1 a kind of for the jet nozzle on self-priming pump, it is characterized in that: between described the first nozzle (1) and described the 3rd nozzle (3), leave 2 ~ 3mm gap, this gap is aimed at the position of four suction ports (10) of described second nozzle (2).
5. a kind of for the jet nozzle on self-priming pump according to described in any one in claim 1-4, is characterized in that: the whole material of described jet nozzle is HT200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107039.9U CN203783909U (en) | 2014-03-11 | 2014-03-11 | Jet nozzle for self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107039.9U CN203783909U (en) | 2014-03-11 | 2014-03-11 | Jet nozzle for self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783909U true CN203783909U (en) | 2014-08-20 |
Family
ID=51320102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420107039.9U Expired - Fee Related CN203783909U (en) | 2014-03-11 | 2014-03-11 | Jet nozzle for self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883569A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Jet nozzle for self-priming pump |
| CN106582071A (en) * | 2015-10-19 | 2017-04-26 | 江苏宇动环保科技有限公司 | Jet-type siphoning machine |
-
2014
- 2014-03-11 CN CN201420107039.9U patent/CN203783909U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883569A (en) * | 2014-03-11 | 2014-06-25 | 江苏大学 | Jet nozzle for self-priming pump |
| CN103883569B (en) * | 2014-03-11 | 2016-04-06 | 江苏大学 | A kind of jet nozzle on self-priming pump |
| CN106582071A (en) * | 2015-10-19 | 2017-04-26 | 江苏宇动环保科技有限公司 | Jet-type siphoning machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20160311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |