CN203879753U - Self-suction device for jet flow out of centrifugal pump - Google Patents
Self-suction device for jet flow out of centrifugal pump Download PDFInfo
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- CN203879753U CN203879753U CN201420240793.XU CN201420240793U CN203879753U CN 203879753 U CN203879753 U CN 203879753U CN 201420240793 U CN201420240793 U CN 201420240793U CN 203879753 U CN203879753 U CN 203879753U
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- centrifugal pump
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- jet flow
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Abstract
Provided is a self-suction device for jet flow out of a centrifugal pump. An outlet pipeline of the centrifugal pump is connected with a delivery gauge, an outlet valve and a jet flow valve, wherein the jet flow valve is connected with a jet flow device, a mixing cavity connection pipe of the jet flow device is connected with a suction pipeline, and a diversion valve and a liquid level detection device are arranged on the pipeline. A diffusion pipe of the jet flow device is connected with an inlet of a steam-water separator, the delivery gauge and an inlet valve are arranged on the outlet pipeline of the centrifugal pump, and a backflow port of the steam-water separator is connected with an inlet of the centrifugal pump to form a circulation system. By means of the self-suction device for jet flow out of the centrifugal pump, a self-suction function of the pump is achieved, steam and water are effectively prevented from entering a pump body at the same time, self-suction time is shortened, and performance and efficiency of the whole unit are increased. The centrifugal pump is optimized, and the self-suction device is simple in structure and easy and convenient to operate.
Description
Technical field
The utility model belongs to self-priming centrifugal pump, refers in particular to the outer jetted self-priming device of a kind of centrifugal pump body.
Background technique
Self priming centrifugal pump market prospects are very wide, and along with economic development, self priming centrifugal pump relies on the application of advantage in production engineering such as its pollution discharge capability is strong, energy-efficient, self-priming performance is good also more and more extensive.Applicable to urban environmental protection, building, fire-fighting, chemical industry, pharmacy, dye printing and dyeing, brewage, electric power, plating, papermaking, oil, mine, apparatus cools, oil tanker unloads wet goods.
Part domestic production producer has concentrated on main energy in the protective system of exploitation pump, at pump operation, automatic cut-off power when abnormal occurs.Although this way can play certain effect, and this protection is also necessary, is not the basic way of dealing with problems.Therefore we also will improve emphasis energy in water pump performance, from deal with problems at all.It is to improve use reliable that self priming centrifugal pump will need the problem solving from now on, can adapt to various working environments, optimizes its structural design, further improves the ability of self priming centrifugal pump.
At present, common self-priming centrifugal pump is divided into following three classes by action principle: gas-liquid mixed (comprising internal-mixing and external mixture type); Water ring is wheeled; Jet-type (comprising liquid jet and gas jet).The self-priming performance of this three classes pump, because of the factor of its structure and principle, has different features, but after having its common feature to be pump startup, in the time of pump priming, is all that gas, water are mixed into pump, carries out aqueous vapor separation at pump body, will inevitably cause like this generation of cavitation erosion.Also can cause the self-priming speed of pump slow, suct the unfavorable factors such as vacuum height is low simultaneously.
Summary of the invention
The purpose of this utility model is, solves above-mentioned existing existing problem, and a kind of efficiency of pump and outer jetted self-priming device of the centrifugal pump body of self-priming performance of improving is provided.
The utility model is achieved in that connection outlet pressure gauge, outlet valve, fluid valve on the export pipeline of centrifugal pump, fluid valve is connected with fluidic device, the mixing chamber of fluidic device is taken over and is connected with suction line, and diversion valve, liquid level detection device are installed on the pipeline of this connection, the diffusing tube of fluidic device is connected with steam-water separator entrance again, inlet pressure gauge, inlet valve are installed on centrifugal pump inlet pipeline, and the backflow interface of steam-water separator is connected with the ingress of centrifugal pump and forms a circulating system.
The utility model has the advantages that, set up an outer circulation fluidic system and carbonated drink piece-rate system at the inlet ductwork place of Ordinary Centrifugal Pumps, can automatic closing system by liquid level detecting switch, between outlet of centrifugal pump pipeline and inlet ductwork, connect fluidic device and water separator, form an outer circulation.According to the principle of entrainmenting of liquid jetting device, introduce jetted self-priming device at delivery side of pump runner, when operation, pressure flow body (water) penetrates by jet nozzle, and the effect of entrainmenting of jet causes inlet pipeline vacuum, due to atmospheric effect, the liquid in liquid storage tank is sucted.Gas (air) in suction line fully separates gas phase under the effect of steam-water separator with this two fluid streams of pressure flow body (water), and the liquid finally refluxing is the liquid that does not contain gas phase; Realize the self-absorption function of pump.Thereby effectively avoided carbonated drink to enter the pump housing simultaneously.Also shortened self-priming time, improved performance and the efficiency of whole unit simultaneously; Optimize centrifugal pump, made it simple in structure, operated light.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In Fig. 1: 1. centrifugal pump, 2. inlet pressure gauge, 3. inlet valve, 4. liquid level detection device, 5. steam-water separator, 6. fluidic device, 7. diversion valve, 8. fluid valve, 9. outlet valve, 10. delivery gauge.
Embodiment
Describe in detail below in conjunction with accompanying drawing: as shown in the figure, connection outlet pressure gauge 10 on the export pipeline of centrifugal pump 1, outlet valve 9, fluid valve 8, fluid valve 8 is connected with fluidic device 6, the mixing chamber of fluidic device 6 is taken over and is connected with suction line, and diversion valve 7 is installed on the pipeline of this connection, liquid level detection device 4, the diffusing tube of fluidic device 6 is connected with steam-water separator 5 entrances again, in centrifugal pump 1 inlet ductwork, inlet pressure gauge 2 is installed, inlet valve 3, the backflow interface of steam-water separator 5 is connected with the ingress of centrifugal pump 1 and forms a circulating system, form the outer jetted self-priming system of centrifugal pump body.
After centrifugal pump 1 starts, close inlet valve 3 and outlet valve 9, open fluid valve 8 and diversion valve 7, fluidic device 6 is arranged on pump discharge pipeline, in the time of centrifugal pump 1 high speed rotating, outlet pressure is improved, and high-pressure liquid, through fluidic device 6, is inhaled the gas in mixing chamber at the effect last volume of jet, form negative pressure at nozzle place, fluid-mixing flow into steam-water separator 5, gas is fully separated to rear discharge, backflow for not contain gas phase liquid.So iterative cycles.In the time that liquid level detection device 4 detects liquid.Open inlet valve 3, close fluid valve 8 and diversion valve 7 simultaneously, open outlet valve 9, liquid flows out from outlet pipe, thereby completes self-priming process; Pump is normally worked.
Claims (1)
1. the outer jetted self-priming device of centrifugal pump body, it is characterized in that, connection outlet pressure gauge, outlet valve, fluid valve on the export pipeline of centrifugal pump, fluid valve is connected with fluidic device, the mixing chamber of fluidic device is taken over and is connected with suction line, and diversion valve, liquid level detection device are installed on the pipeline of this connection, the diffusing tube of fluidic device is connected with steam-water separator entrance again, inlet pressure gauge, inlet valve are installed on centrifugal pump inlet pipeline, and the backflow interface of steam-water separator is connected with the ingress of centrifugal pump and forms a circulating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240793.XU CN203879753U (en) | 2014-05-13 | 2014-05-13 | Self-suction device for jet flow out of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240793.XU CN203879753U (en) | 2014-05-13 | 2014-05-13 | Self-suction device for jet flow out of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879753U true CN203879753U (en) | 2014-10-15 |
Family
ID=51680256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240793.XU Expired - Fee Related CN203879753U (en) | 2014-05-13 | 2014-05-13 | Self-suction device for jet flow out of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879753U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500408A (en) * | 2015-01-20 | 2015-04-08 | 湖南山源安自控系统有限公司 | Mine main drainage multistage pump emergency pump pulling device capable of automatically replenishing water |
| CN104863864A (en) * | 2015-05-26 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Device for improving mechanical sealing performance of industrial centrifugal pump |
| CN104863900A (en) * | 2015-06-05 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Process for mechanical sealing running protection of industrial centrifugal pump |
| CN104879321A (en) * | 2015-05-31 | 2015-09-02 | 安徽瀚洋节能科技有限公司 | Mechanically sealed industrial centrifugal pump |
| CN108468626A (en) * | 2018-04-20 | 2018-08-31 | 高阳 | A kind of automatic control type vacuum water pump group |
| CN110145499A (en) * | 2019-06-19 | 2019-08-20 | 辽宁工业大学 | A kind of liquid storage booster jar and test method to eliminate low-temperature centrifugal pump cavitation phenomenons |
| CN111412184A (en) * | 2020-03-27 | 2020-07-14 | 安徽埃斯克制泵有限公司 | Cavitation-resistant double-suction split pump and working method thereof |
-
2014
- 2014-05-13 CN CN201420240793.XU patent/CN203879753U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500408A (en) * | 2015-01-20 | 2015-04-08 | 湖南山源安自控系统有限公司 | Mine main drainage multistage pump emergency pump pulling device capable of automatically replenishing water |
| CN104863864A (en) * | 2015-05-26 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Device for improving mechanical sealing performance of industrial centrifugal pump |
| CN104879321A (en) * | 2015-05-31 | 2015-09-02 | 安徽瀚洋节能科技有限公司 | Mechanically sealed industrial centrifugal pump |
| CN104863900A (en) * | 2015-06-05 | 2015-08-26 | 安徽瀚洋节能科技有限公司 | Process for mechanical sealing running protection of industrial centrifugal pump |
| CN108468626A (en) * | 2018-04-20 | 2018-08-31 | 高阳 | A kind of automatic control type vacuum water pump group |
| CN110145499A (en) * | 2019-06-19 | 2019-08-20 | 辽宁工业大学 | A kind of liquid storage booster jar and test method to eliminate low-temperature centrifugal pump cavitation phenomenons |
| CN110145499B (en) * | 2019-06-19 | 2023-11-24 | 辽宁工业大学 | Liquid storage booster tank for eliminating cavitation phenomenon of low-temperature centrifugal pump and testing method |
| CN111412184A (en) * | 2020-03-27 | 2020-07-14 | 安徽埃斯克制泵有限公司 | Cavitation-resistant double-suction split pump and working method thereof |
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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: 20141015 Termination date: 20150513 |
|
| EXPY | Termination of patent right or utility model |