阅读说明：本技术 一种快速自吸高效立式管道自吸泵 (A kind of fast self-priming high-efficiency vertical pipeline self sucking pump ) 是由 瞿克文 彭光杰 瞿海波 戴春阳 于 2019-10-11 设计创作，主要内容包括：本发明公开了一种快速自吸高效立式管道自吸泵,包括泵轴和泵体,所述的泵体右端通过螺钉连接有悬架,所述的泵轴下端设置有叶轮,所述的叶轮上端设置有挡板,所述的挡板上端固定有泵盖,所述的泵盖和挡板之间设置有副叶轮并形成压缩腔,所述的泵盖上端通过螺钉固定有中间隔套,所述的中间隔套右端通过螺钉连接有密封压盖,所述的泵轴外圈设置有轴套,所述的轴套外圈接触有副叶轮、泵盖、中间隔套、机封和密封压盖,所述的泵体右端一侧设置有进气口；所述的副叶轮靠近泵轴处设置有“L”形延伸凸台,所述的延伸凸台插入副叶轮对应的环形凹槽中。相比传统WFB型立式自吸泵,此结构无需灌泵,结构占地面积小,自吸时间更快,泵效率更高。(The invention discloses a kind of fast self-priming high-efficiency vertical pipeline self sucking pumps, including pump shaft and the pump housing, the pump housing right end has been connected by screw to suspension, the pump shaft lower end is provided with impeller, the impeller upper end is provided with baffle, the baffle upper end is fixed with pump cover, accessory impeller is provided between the pump cover and baffle and forms compression chamber, the pump cover upper end is fixed with middle spacer sleeve by screw, the middle spacer sleeve right end has been connected by screw to sealing gland, the pump shaft outer ring is provided with axle sleeve, the axle sleeve outer ring contact has accessory impeller, pump cover, middle spacer sleeve, machine envelope and sealing gland, the pump housing right end side is provided with air inlet；The accessory impeller is provided with L shape at pump shaft and extends boss, and the extension boss is inserted into the corresponding annular groove of accessory impeller.Compared to traditional WFB type vertical self-sucking pump, this structure is without filling pump, and structure occupied area is small, and faster, the efficiency of pump is higher for self-priming time.)

1. a kind of fast self-priming high-efficiency vertical pipeline self sucking pump, including pump shaft (9) and the pump housing (1), the pump housing (1) right end are logical It crosses screw and is connected with suspension (11), it is characterised in that: described pump shaft (9) lower end is provided with impeller (2), the impeller (2) Upper end is provided with baffle (3), and the baffle (3) upper end is fixed with pump cover (7), is set between the pump cover (7) and baffle (3) It is equipped with accessory impeller (4) and is formed compression chamber (8), the pump cover (7) upper end is fixed with middle spacer sleeve (6) by screw, described Middle spacer sleeve (6) right end be connected by screw to sealing gland (10), the pump shaft (9) outer ring is provided with axle sleeve (5), institute Axle sleeve (5) the outer ring contact stated has accessory impeller (4), pump cover (7), middle spacer sleeve (6), machine envelope (12) and sealing gland (10), institute The pump housing right end side stated is provided with air inlet (1.1)；The accessory impeller (4) is provided with L shape extension at pump shaft (9) Boss (3.1), the extension boss (3.1) are inserted into accessory impeller (4) corresponding annular groove, the extension boss (3.1) there are gaps with accessory impeller (4).

2. a kind of fast self-priming high-efficiency vertical pipeline self sucking pump according to claim 1, it is characterised in that: the centre Spacer (6) upper end is provided with air and water outlet (6.3), and described middle spacer sleeve (6) lower end is provided with pump inlet section air Import (6.1).

3. a kind of fast self-priming high-efficiency vertical pipeline self sucking pump according to claim 1, it is characterised in that: the sealing Gland (10) outer ring is provided with machine sealing flushing water outlet (6.2).

4. a kind of fast self-priming high-efficiency vertical pipeline self sucking pump according to claim 1, it is characterised in that: the accessory lobes Wheel (4) forms water ring by rotation and compresses to the air of compression chamber (8).

5. a kind of fast self-priming high-efficiency vertical pipeline self sucking pump according to claim 1, it is characterised in that: the centre Organic envelope (12) are set between spacer (6) and sealing gland (10).

Technical field

The present invention relates to pump valve equipment technical fields, and in particular to a kind of fast self-priming high-efficiency vertical pipeline self sucking pump.

Background technique

What the essential structure of vertical pipeline centrifugal pump was made of six parts is impeller respectively, the pump housing, pump shaft, motor, pump Lid, sealing ring.

Vertical pipeline centrifugal pump is before work, and the pump housing and the necessary tank full water of water inlet pipe form vacuum state, when impeller is quick When rotation, blade promotes water to rotate quickly, and the water being rotating flies to from impeller under the influence of centrifugal force, and the water in pump is thrown After out, the central part of impeller forms vacuum area.

Common self priming pump generallys use circular ring shape delivery chamber, and delivery chamber is cast integrally with volume chamber, passes through gas Self-priming is realized in liquid mixing, and hydraulic loss is big in operational process, therefore efficiency is relatively low, and operation noise is big, and occupied space is big；Also there is portion Point user adds drainage to fill using Pump Suction Nozzle, the mode of bottom valve, make to cause very big hydraulic loss when pump work and also investment at This height.

Summary of the invention

In view of the above-mentioned problems, the present invention is intended to provide a kind of fast self-priming high-efficiency vertical pipeline self sucking pumps.

To realize the technical purpose, the scheme of the invention is:

Preferably, a kind of fast self-priming high-efficiency vertical pipeline self sucking pump, including pump shaft and the pump housing, the pump housing right end are logical It crosses screw and is connected with suspension, it is characterised in that: the pump shaft lower end is provided with impeller, and the impeller upper end is provided with gear Plate, the baffle upper end is fixed with pump cover, is provided with accessory impeller between the pump cover and baffle and forms compression chamber, described Pump cover upper end middle spacer sleeve is fixed with by screw, the middle spacer sleeve right end has been connected by screw to sealing gland, institute The pump shaft outer ring stated is provided with axle sleeve, and the axle sleeve outer ring contact has accessory impeller, pump cover, middle spacer sleeve, machine envelope and sealing pressure Lid, the pump housing right end side is provided with air inlet；The accessory impeller is provided with L shape at pump shaft and extends boss, In the corresponding annular groove of extension boss insertion accessory impeller, there are gaps with accessory impeller for the extension boss.

Preferably, the middle spacer sleeve upper end is provided with air and water outlet, the middle spacer sleeve lower end It is provided with pump inlet section air intlet.

Preferably, the sealing gland outer ring is provided with machine sealing flushing water outlet.

The air of compression chamber is compressed preferably, the accessory impeller forms water ring by rotation.

Preferably, organic envelope is arranged between the middle spacer sleeve and sealing gland.

Beneficial effects of the present invention, first lead to machine seal cooling water, after open pump, self-priming can be realized in 10 seconds, the efficiency of pump is almost As centrifugal pump of horizontal axis, increases this self-absorbing structure consumption power limited, 3KW is no more than for large-scale self priming pump, it is small-sized Self priming pump consumption power is lower, this structure seals a certain amount of water using the rotation of semi-open type accessory impeller, stores a certain amount of water and realizes Water ring compressed air carries out air-breathing exhaust, improves port above, inspiratory effects are more preferable.

Compared to traditional WFB type vertical self-sucking pump, for this structure without filling pump, structure occupied area is small, and self-priming time faster, pumps It is more efficient.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Specific embodiment

The present invention is described in further details in the following with reference to the drawings and specific embodiments.

As shown in Figure 1, specific embodiment of the present invention is

A kind of fast self-priming high-efficiency vertical pipeline self sucking pump, including pump shaft 9 and the pump housing 1,1 right end of the pump housing are connected by screw It is connected to suspension 11, it is characterised in that: 9 lower end of pump shaft is provided with impeller 2, and 2 upper end of impeller is provided with baffle 3, 3 upper end of baffle is fixed with pump cover 7, is provided with accessory impeller 4 between the pump cover 7 and baffle 3 and forms compression chamber 8, 7 upper end of pump cover is fixed with middle spacer sleeve 6 by screw, and 6 right end of middle spacer sleeve has been connected by screw to sealing Gland 10,9 outer ring of pump shaft are provided with axle sleeve 5, and 5 outer ring of the axle sleeve contact has accessory impeller 4, pump cover 7, middle spacer sleeve 6, machine envelope 12 and sealing gland 10, the pump housing right end side are provided with air inlet 1.1；The accessory impeller 4 is close to pump shaft 9 Place is provided with L shape and extends boss 3.1, and the extension boss 3.1 is inserted into the corresponding annular groove of accessory impeller 4, described Extending boss 3.1, there are gaps with accessory impeller 4.

6 upper end of middle spacer sleeve is provided with air and water outlet 6.3, and 6 lower end of middle spacer sleeve is provided with Pump inlet section air intlet 6.1.

10 outer ring of sealing gland is provided with machine sealing flushing water outlet 6.2.

The accessory impeller 4 forms water ring by rotation and compresses to the air of compression chamber 8.

Organic envelope 12 is set between the middle spacer sleeve 6 and sealing gland 10.