CN201041161Y

CN201041161Y - Self-controlled self-suction type non-clogging pollution discharge pump

Info

Publication number: CN201041161Y
Application number: CNU2007200679018U
Authority: CN
Inventors: 施勇; 王者文; 乔玉兰; 张英
Original assignee: Shanghai Kaiquan Pump Group Co Ltd
Current assignee: Shanghai Kaiquan Pump Group Co Ltd
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-03-26
Anticipated expiration: 2017-03-16

Abstract

The utility model relates to a self-control self-priming type non-clogging sewage pump, comprising an inlet tube, a pump body, a pump cover, a motor, an impeller, a reflux hole, a mechanical seal and a base. The motor is a lengthening shaft motor; the impeller is double blades type impeller which is connected with the motor lengthening shaft motor, the sewage pump cancels a bracket part, a slapping gate and a transition section. The inlet tube is provided with an electric air control valve which is connected with the motor. The utility model uses that the lengthening shaft motor and the pump are connected directly. The impeller uses double blades structure, which improves efficiency of the pump greatly. The reflux hole guarantees accuracy of the reflux hole size through mechanical processing, and the self-priming performance is improved significantly. After canceling slapping gate, inhaling loss of the pump is reduced, and the self-priming height is improved. The inlet part is increased with the electric air control valve, which makes the sewage pump become a high-tech product of electromechanical instrument integration, with operation reliability of the pump improved greatly, and the manufacturing cost reduced.

Description

The self-priming no-blocking pollution discharging pump of automatic control

Technical field

The utility model relates to pump, the pollution discharge pump that the self-priming nothing of particularly a kind of automatic control is stopped up.

Background technique

Self-priming pollution discharge pump integrates self-priming and does not have the blowdown of obstruction, both can as the self-priming clean waterpump do not need to install bottom valve and water like that, but suction contains the liquid of large particle solid and long fibre impurity again, can be widely used in chemical mediums such as municipal drainage project, river embankment breed, light industry, papermaking, weaving, food, chemical industry, electric power, fiber, slurry and mix suspending, be a kind of desirable Non-blinding pump.

Referring to Fig. 1, common self-priming pollution discharge pump generally is divided into three parts such as pump, motor 10 and base 11 at present.Pump partly is provided with inlet tube 1, flap valve 2, changeover portion 3, the pump housing 4, impeller 6, pump cover 8, mechanical seal 7 and carriage member 9, and its component are more.

Wherein: carriage member 9 complex structures, reliability is low, and cost is higher; Return port 5 on the pump housing 4 is by the casting straight forming, and the area error of backflow is bigger, has had a strong impact on the self-priming performance of pump; Impeller 6 is the channel-type impeller, and efficient is lower.In addition, the flap valve 2 between inlet tube 1 and the changeover portion 3 is a rubber parts, and trouble is installed, and very easily damages, and flap valve then is the vital part of this pump, in case damage, will have influence on the self-priming performance of pump, can not self-priming when causing pump to start once more.

Summary of the invention

Task of the present utility model provides the self-priming no-blocking pollution discharging pump of a kind of improved automatic control, and it has solved the carriage member complex structure of existing self-priming pollution discharge pump, and the channel-type impeller adiabatic efficiency is lower, and flap valve and changeover portion such as very easily damage at problem.

The technical solution of the utility model is as follows:

The self-priming no-blocking pollution discharging pump of a kind of automatic control, it comprises inlet tube, the pump housing, pump cover, motor, impeller, return port, mechanical seal and base, described motor is the extension shaft motor, and described impeller is a double leaf chip impeller, and double leaf chip impeller is connected on the motor extension shaft; Described pollution discharge pump has been cancelled carriage member, flap valve and changeover portion; The electric air control valve that is connected with motor is housed on the described inlet tube.

The self-priming no-blocking pollution discharging pump of automatic control of the present utility model adopts the extension shaft motor directly to connect with pump; Impeller adopts double blade structure, and pump efficiency is greatly improved; Return port has guaranteed the accuracy of return port size by machining, and self-priming performance is significantly improved; Cancelled carriage member, especially cancelled the flap valve and the changeover portion that very easily damage, behind the cancellation flap valve, reduced the suction loss of pump, the self-priming height of pump also is improved; Increase electric air control valve in inlet part, made this pollution discharge pump become the high-tech product of mechatronics, improved the operational reliability of pump widely, reduced cost of production.

Description of drawings

Fig. 1 is the structural representation of the self-priming pollution discharge pump of routine.

Fig. 2 is the structural representation of the self-priming no-blocking pollution discharging pump of a kind of automatic control of the present utility model.

Embodiment

Referring to Fig. 2, the utility model is the self-priming no-blocking pollution discharging pump of a kind of automatic control, and it is provided with inlet tube 21, the pump housing 23, pump cover 28, motor, impeller, return port 24, mechanical seal 26 and base 31.Pump and motor are installed on the base by bolt.

Motor is an extension shaft motor 30, and impeller is a double leaf chip impeller 25, and double leaf chip impeller 25 and mechanical seal 26 are connected on the motor extension shaft 29.This pollution discharge pump has been cancelled carriage member, flap valve and the changeover portion of conventional pollution discharge pump.

Be provided with inlet tube 21 in the pump housing 23 imports, the electric air control valve 22 that is connected with extension shaft motor 30 be housed on inlet tube 21, this valve 22 directly and motor 30 link together the two synchronization onwards effect.Be provided with outer pipe in pump housing outlet.

Pump cover 28 is connected by screw on the end cap of extension shaft motor 30, and the pump housing 23 and pump cover 28 couple together with bolt by the hole on the flange separately.The pump housing 23 is equipped with O RunddichtringO 27 with pump cover 28 middle seam end faces, leaks out to prevent the high pressure water in the pump housing.

The conventional manufacturing of return port 24 that is arranged at the pump housing 23 belows is direct casting, but the size of return port is very big for the self-priming performance of self-priming pump such as self-priming time and self-priming effect of altitude.Pollution discharge pump of the present utility model has then guaranteed the size of return port 24 exactly by machining, compare with the precision in normal reflux hole, is significantly improved, and it can guarantee the self-priming performance of pump.

The self-priming no-blocking pollution discharging pump working procedure of automatic control of the present utility model is as follows:

Start extension shaft motor 30, motor extension shaft 29 drives double leaf chip impeller 25 and rotates in the pump housing 23, after water in the volute comes out from delivery chamber, because it is big that volume becomes suddenly, flow velocity descends, and gas is upwards overflowed in vapor-liquid separation chamber, liquid is got back to delivery chamber from the return port 24 that is arranged in the pump housing 23 belows, so go round and begin again, the gas row light in inlet ductwork, thus realize self-absorption function.

During termination of pumping, be installed in electric air control valve 22 close synchronouslies on the inlet tube 21, valve plate is opened, pump inlet is communicated with atmosphere, has avoided the interior liquid of pump to be inhaled into the pipeline siphon and gone back, thereby made the pump housing 23 store a chamber liquid, then do not need pump priming once more when treating pump startup next time, realized the automatic control self-absorption function of " drainage, lifelong self-priming ", self-priming performance is reliable and stable.

Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim conversion, the modification of the foregoing description.

Claims

1. self-priming no-blocking pollution discharging pump of automatic control, it comprises inlet tube, the pump housing, pump cover, motor, impeller, return port, mechanical seal and base, it is characterized in that, described motor is the extension shaft motor, described impeller is a double leaf chip impeller, and double leaf chip impeller is connected on the motor extension shaft; Described pollution discharge pump has been cancelled carriage member, flap valve and changeover portion; The electric air control valve that is connected with motor is housed on the described inlet tube.

2. the self-priming no-blocking pollution discharging pump of automatic control according to claim 1 is characterized in that, the seam end face is equipped with the O RunddichtringO in the middle of the described pump housing and the pump cover.