KR20190005419A - Underwater pump with lead pipe of priming water - Google Patents

Abstract

The present invention relates to an underwater pump having a priming water lead pipe which is capable of drastically reducing the waiting time for operation in water and significantly increasing the waiting time for operation in air, thereby reducing the corrosion and malfunction of the underwater pump. In detail, provided is an underwater pump having a priming water lead pipe, wherein the priming water lead pipe, which has a length of 200 to 3,000 mm to allow priming water to naturally flow between an impeller chamber and a collecting chamber of the underwater pump used for collecting bilge or groundwater, is mounted, and when the bilge or groundwater flows into the impeller chamber, a water level sensor installed outside the underwater pump detects it, so that the underwater pump operates. In some cases, a waterproof case is mounted on the underwater pump to prevent water from reaching the outer surface of the underwater pump even if the bilge or groundwater has a higher water level than the underwater pump, thereby suppressing corrosion of the underwater pump.

Description

[0001] UNDERWATER PUMP WITH LEAD PIPE OF PRIMING WATER [0002]

The present invention relates to an underwater pump having a priming lead pipe for drastically reducing the waiting time for operation in water and significantly increasing the waiting time for operation in the air, thereby reducing the corrosion and malfunction of the underwater pump.

More specifically, a primer lead pipe having a length of 200 mm to 3,000 mm is inserted between the impeller chamber of the submersible pump used for collecting wastewater or groundwater and the water collecting chamber so that naturally primed water is introduced into the impeller chamber, The present invention relates to an underwater pump having a priming lead pipe for detecting a water level sensor when an inflow of water or bilge or groundwater is introduced and an underwater pump is operated.

In some cases, even if the water pump has a water level higher than that of the submerged pump, the submerged lead pipe is provided with a waterproof case for preventing water from contacting the outer surface of the submerged pump, To a submerged pump.

A feature of the present invention described above is characterized in that a priming lead pipe having a length of 200 mm to 3,000 mm is mounted on the lower part of an impeller chamber of a submersible pump, and a water collecting chamber equipped with an absorbing port is mounted on the lower part of the priming lead pipe.

In some cases, the waterproof case is also mounted on the outside of the underwater pump.

Conventional submersible pumps, which are usually installed in the underground wastewater collection of a building or an apartment complex, or installed in a groundwater collection facility for pumping groundwater, are underwater even in an operating standby state, The life span of the machine is shortened, and troubles occur frequently due to moisture and the like.

In order to solve some of the above problems, it has been proposed to allow the underwater motor pump to be lifted up to the upper side in the air waiting time in the "Korean Patent Registration No. 10-1689162, automatic lifting system of an underwater motor pump" Such an arrangement is problematic in that the manufacturing and installation cost is relatively high due to the complexity of the apparatus, the failure is likely to be frequent, and the operation becomes difficult when the sleep surface is frozen in winter.

Korean Patent Registration No. 10-1689162, automatic lifting system of underwater motor pump

The present invention relates to a method for drastically reducing the corrosion rate and life span caused by moisture of a submersible pump installed in an apartment complex, a villa complex, a commercial building, an office building, An object of the present invention is to provide an underwater pump having a lead pipe.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a submerged pump,

A priming lead pipe having a length of 200 mm to 3,000 mm is naturally inserted between the impeller chamber and the water collecting chamber of the submersible pump so that when the wedge or groundwater flows into the impeller chamber, It is characterized by the installed water level sensor detects and the underwater pump is activated.

In some cases, even if the water pump or the underground water has a higher water level than the submerged pump, the waterproof case for preventing the water from touching the outer surface of the submerged pump is installed to suppress the corrosion of the underwater pump. have.

In the case of using the submerged pump having the visiting physic tube according to the present invention, the time required for the submersible pump to stand by in water is drastically reduced, so that the corrosion of the submersible pump can be suppressed and the service life can be further prolonged. Can be remarkably lowered.

1 is a perspective view schematically showing an underwater pump according to a first embodiment to which the technique of the present invention is applied.
2 is a perspective view schematically showing a submersible pump according to a second embodiment to which the technique of the present invention is applied.
3 is a cross-sectional view showing a state in which the submerged pump of Fig.
Description of the symbols used in the main parts of the drawings
100, 200; Submersible pump
110, 210; Submerged pump main body portion
120, 220; The power unit
130, 230; Pumping section
131, 231; Impeller room
132, 232; Impeller
133, 233; Primed lead pipe
134, 234; House room
135, 235; Absorber
140, 240; discharge pipe
211; waterproof case
250; Check valve
260; Air outlet valve
270; Edit House

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically illustrating a submersible pump according to a first embodiment of the present invention. Referring to FIG.

The underwater pumper main body 110 includes a power unit 120 including a motor 121, an impeller chamber 131, an impeller 132, a primer lead pipe 133, a water chamber 134, And an absorption port 135 formed on a side surface of the pumping unit 130. [

1 of the present invention is an example in which, when the operation of the underwater pumper 100 is stopped, the amount of water flowing backward from the discharge pipe 140 is small or does not become a problem.

The operation principle will be briefly described as follows.

Waste water or ground water enters the impeller chamber 131 via the desiccant 136 and the priming lead pipe 133 through the desiccant 136 and water is introduced into the impeller chamber 131 The first water level sensor 171 is operated to operate the motor 121 of the power unit 120 and at the same time the impeller 132 rotates so that groundwater or wastewater is discharged to the outside via the discharge pipe 140 do.

At this time, since the upper side of the impeller chamber 131, which is the upper side of the priming lead pipe 133, which is a main portion of the submerged pump main body portion 110, is always standing on the surface of the water except for a special case, Is suppressed remarkably.

More specifically, the water collecting chamber 134, which is comparatively less susceptible to corrosion, and the priming lead pipe 133 having a depth of 200 mm to 3,000 mm are always in the water, but only the inside and the outside of the impeller chamber 131 are temporarily And the power section, which is a part sensitive to moisture, always waits on the water, so that the overall life of the underwater pump 100 is lengthened, and the failure occurrence rate is drastically reduced.

In addition, when the water in the water tank overflows the floodgate, or when the water tank is cleaned, the floodgate of the water tank is opened too much to overflow the floodgate, or the flood water floods the outside water The second level sensor 172 detects that the warning flashing lamp 182 flashes and these situations are detected by the illumination lamp 181 and captured by the CCTV camera 180 and transmitted to the CCTV monitor of the management room. .

The first level sensor 171, the second level sensor 172, the CCTV camera 180 and the warning flasher 182 of the present invention are located on the upper side of the collecting room or 20 m from the installation point of the submersible pump 100 Of the total length of the cable.

The warning flashing lamp 182 operates when the water reaches the second water level sensor 172. However, even when the water level of the water in the water storage tank is overflowed and the motor 121 is operated excessively for the reference time, To notify the management room or the manager of the dangerous situation of the water by CCTV monitor or internet using equipment or mobile phone text sending.

Since the priming lead pipe 133 is made of a flexible material so that water does not naturally pressurize due to the absence of a check valve in the discharge pipe 140 and is made of a flexible material such as a cord 138 Is pulled upwards to clean the clamping wire 136. As shown in FIG.

The unexplained reference numeral 122 is a wire.

FIG. 2 is a perspective view schematically showing a submersible pump according to a second embodiment of the present invention, FIG. 3 is a cross-sectional view of the submerged pump of FIG. 2, I will explain it together.

The submerged pump main body 210 includes a power unit 220 including a motor 221 and an impeller 231 and an impeller 232. A priming lead pipe 233 and a water collecting chamber 234 and a water collecting chamber 234 The main part of the underwater pump main body part 210 is composed of the waterproof case 211 and the air vent 213 and the conduit pipe 230. [ A check valve 250 for preventing backward flow of water to the discharge pipe 240 and an air outlet 261 and a spring 272 and a water blocking plate And a detachable drawing wire 236 to which a wire grip 237 is coupled is attached to an absorption opening 235 of the water collecting chamber 234 in that the air outlet valve 260 is installed.

The waterproof case 211 in which the first water level sensor 271 and the second water level sensor 272 are installed on the outer wall functions as a main part of the water pump main body part 210, So that it does not touch the water even if it rises above the height of the sense (272).

The air outflow valve 260 serves to prevent air from flowing between the check valve 250 and the water collecting chamber 234 to prevent backflow of water. When water starts to flow into the priming lead pipe 233, Since the air outlet 261 is opened by the elastic force of the elastic spring 262 of the air outlet valve 260 at the time when the submersible pump 200 is not yet operated, air is discharged to the air outlet 261, The motor 221 and the impeller 231 are rotated by the sensing of the first level sensor 271 when the level of the impeller 231 reaches the management level, And the water blocking plate 263 of the air outlet valve 260 is closed by the water pressure.

The functions of the second water level sensor 272, the CCTV camera 280, the illumination lamp 281 and the alarm flashing lamp 282 are the same as those of the first embodiment of the present invention.

Reference numeral 222 is a wire, and 214 is a conduit pipe.

The present invention is not limited to the example of FIG. 2, but may be applied to a case where the submersible pump 200 stops the pumping operation, the amount of water flowing back through the discharge pipe 240 is large, to be.

Further, in the present invention, all or a part of the second level sensor 172 or 272, the CCTV camera 180 or 280, the illumination lamp 181 or 281 and the warning flasher 182 or 282 may be omitted.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims (6)

In a submerged pump installed in a wastewater collection facility installed in various buildings or a groundwater collection facility,
A priming lead pipe 133 is installed between the impeller chamber 131 and the water collecting chamber 134 of the submerged pump 100 so as to naturally allow the priming water to flow into the impeller chamber 131. In the impeller chamber 131, Wherein the first water level sensor (171) installed outside the submersible pump (100) senses the submergence pump (100) when the groundwater flows into the submergence pump (100). In a submerged pump installed in a wastewater collection facility installed in various buildings or a groundwater collection facility,
A priming lead pipe 233 that naturally flows into the impeller chamber 231 between the impeller chamber 231 of the submerged pump 200 and the water collecting chamber 234 and a priming lead pipe 233 in which pressure is applied to the priming lead pipe 233 When the wastewater or groundwater flows into the impeller chamber 231 by mounting the air outflow valve 260 to prevent the water pump 260 from rising, the first water level sensor 271 installed outside the water pump 200 detects the water pump 200, Wherein the water pump is adapted to operate. 3. The method according to claim 1 or 2,
Wherein the priming lead pipe (133 or 233) has a length of 200 mm to 3,000 mm. 3. The method of claim 2,
Wherein a waterproof case (211) is mounted on an upper side of a priming lead pipe (233) of the submerged pump (200). 3. The method according to claim 1 or 2,
At least one of a second level sensor 172 or 272, a CCTV camera 180 or 280 and an alarm flashing lamp 182 or 282 is installed within 20 m of the underwater pump 100 or 200 The submerged pump having a priming lead tube. 3. The method of claim 2,
Wherein an air outflow port (261) and a water shutoff plate (263) are mounted on the air outflow valve (260).

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