KR102136142B1 - through type pump and fluid displacement device inside of fluid - pipe - Google Patents

Abstract

The present invention relates to a through-type drainage pump and a fluid drainage device in a fluid pipe using the same, which are to safely discharge chemically-treated residual fluid in a main pipe to a designated place when one side of the main pipe where the fluid (for example, tap water, chemically treated hot water for heating, etc.) flows is aged and damaged, or a repair work for connecting a branch pipe with respect to the main pipe is performed. The through-type drainage pump according to an embodiment of the present specification, which is applied to discharge residual fluid in an arbitrary working section of a fluid pipe in which the fluid flow is blocked to the outside, comprises: a cylindrical housing having an arbitrary length, wherein a plurality of fluid inlets formed in a lower portion are connected with a fluid outlet formed to protrude from an upper outer surface by a fluid flow passage; a driving motor mounted on an upper end of the housing and a long type rotary shaft accommodated in the housing with an upper end rotatably connected to an output shaft of the driving motor by a coupler; a multistage impeller mounted at a lower end of the rotary shaft to move the fluid introduced through the fluid inlet to the fluid outlet along the fluid flow passage; and a support piece for rotatably supporting the rotary shaft at an arbitrary position inside the housing to prevent the rotary shaft from shaking.

Description

Through type pump and fluid displacement device inside of fluid-pipe

The present specification relates to a through-type drainage pump and a fluid drainage device in a fluid pipe using the same. More specifically, one side of a buried main pipe through which fluid (eg, tap water, chemically treated hot water for heating, etc.) flows When it is damaged due to deterioration or when performing maintenance work to connect branch pipes to the main piping, the fluid drainage device in the fluid piping using a through-type drain pump to safely discharge the chemically treated residual fluid in the main piping to the designated place. It is about.

Unless otherwise indicated herein, the content described in this section is not prior art to the claims of this application and is not admitted to be prior art by inclusion in this section.

In general, fluids flowing along the inside, such as water supply pipes, industrial water pipes, cold/hot water pipes, or factory facility lines, may leak due to damage to the buried pipes due to their characteristics, or replace and install the valve. If necessary, the urgency of repair and repair work is required, and if the fluid flow is temporarily cut off and blocked for repair work, unexpected complaints may occur due to suspension of operations in apartments and factories where fluid is supplied.

In consideration of this, when connecting the branch pipe to the main pipe through which the fluid flows or when replacing the old pipe, there is an uninterrupted water method that allows work to be performed while bypassing the fluid to continuously flow in areas other than the working section. Is used.

As described above, in the case of repair work on a specific part of the fluid piping, the piping of the leaking part is replaced without discharging the chemically treated residual fluid (heating hot water) to the outside, so that the fluid piping remains in the repair work. Fluids can flow into the atmosphere or the ground, causing environmental pollution.

Particularly, hot water for heating at a high temperature (for example, about 120° C.) contains harmful substances such as chemicals and thus has a problem that may cause air, ground water, and soil contamination when leaked into the soil.

In the Republic of Korea Patent Publication No. 10-2013-0013094, the drainage capacity variable drainage pump device is posted.

In the exemplary embodiment of the present specification, when repairing a damaged portion of the main pipe or repairing connecting a branch pipe or the like to the main pipe, a drainage pump is installed after drilling the main pipe, and chemically treated residual fluid in the main pipe ( It relates to a through-type drainage pump and a fluid drainage device in a fluid piping using the same, which enables safe discharge of hot water for heating) to any location.

In the embodiment of the present specification, when repairing a damaged portion of the main pipe, discharge of residual fluid in the main pipe to a designated place can prevent environmental pollution due to unauthorized discharge of chemically treated residual fluid, and is dangerous It relates to a through-type drainage pump and a fluid drainage device in a fluid piping using the same to reduce elements and provide safe working conditions.

According to an embodiment of the present specification to achieve the above and other purposes of the present specification,

It is applied to the drainage pump for discharging the residual fluid from any working section of the fluid piping that has blocked the fluid flow to the outside,

A plurality of fluid inlets formed at the bottom and a fluid outlet formed to protrude on the upper outer surface are communicated by a fluid movement passage, and have a cylindrical housing having an arbitrary length;

A drive shaft mounted on the top of the housing and a rotation shaft of a long axis type, which is rotatably connected to an output shaft of the drive motor by a coupler and accommodated in the housing;

A multi-stage impeller mounted at a lower end of the rotating shaft to move the fluid flowing through the fluid inlet to the fluid outlet along the fluid movement passage;

It provides a through-type drainage pump, characterized in that provided with; a support piece for rotatably supporting the rotating shaft at any position inside the housing to prevent the rotating shaft from shaking.

According to an embodiment of the present specification to achieve the above and other purposes of the present specification,

A supply pipe through which a fluid at a first temperature flows and a through-type drainage pump is detachably mounted;

A recovery pipe through which a fluid at a second temperature flows and a through-type drainage pump is detachably mounted;

A plurality of stage breakers for detachably mounted on a valve mounted in a perforation hole formed in the supply pipe and a recovery pipe, and blocking a fluid flow during operation in a work section;

A bypass pipe communicating the supply pipes and the recovery pipes except for the working section so that fluids other than the working section of the supply pipes and the recovery pipes are bypassed;

A water transport vehicle for storing fluid drained by the drain pump from the supply pipe and the recovery pipe;

A fluid transfer pipe for communicating the fluid outlet of the drain pump of the recovery pipe with the fluid inlet hole of the supply pipe, and moving the fluid of the recovery pipe to the supply pipe to lower the fluid temperature of the supply pipe;

It includes; a water tank for storing the water transport vehicle or the fluid drained from the supply pipe and the recovery pipe, and supplying the stored fluid to the recovery pipe;

The through-type drain pump includes a housing in which a fluid inlet and a fluid outlet formed in the lower part and the upper part are communicated by a fluid movement passage, a rotating shaft accommodated in the housing, and a multi-stage impeller mounted on the lower end of the rotating shaft, and on the upper part of the housing. It provides a fluid drainage device in a fluid pipe using a through-type drainage pump, characterized in that it comprises a drive motor mounted and connected to the rotating shaft.

The through-type drainage pump according to the embodiment of the present specification having the above-described configuration and the fluid drainage device in the fluid pipe using the same has the following advantages.

When repairing the damaged part of the main pipe through which fluid such as heated water for chemical treatment flows, or when connecting the branch pipe to the main pipe jointly, puncture the main pipe, remove the perforator, and install the drain pump in the same position By discharging residual fluid in the main pipe, workability can be improved.

In addition, it is possible to avoid dangerous work caused by high temperature water, and to prevent discharge of high temperature water around the work place, thereby preventing environmental pollution.

In addition, when the residual fluid is bypassed by installing a breaker in the secondary stage to repair the damaged part of the main pipe, the residual fluid in the main pipe is bypassed through the through-hole and valve installed in the secondary stage breaker using a vertical multi-stage pump. Can be recovered by piping.

1 is a cross-sectional view of a through-type drainage pump according to a preferred embodiment of the present specification,
Figure 2 (a, b) is a use state of the through-type drainage pump shown in Figure 1,
3 is a view for explaining that the through-type drainage pump shown in Figure 1 is mounted to the fluid pipe;
4 is a state diagram of the use of the fluid drainage device in the fluid pipe using the through-type drainage pump shown in FIG.

Hereinafter, with reference to the accompanying drawings, a through-type drainage pump according to a preferred embodiment of the present specification and a fluid drainage device in a fluid pipe using the same will be described in detail.

1 to 4, a through-type drainage pump according to an embodiment of the present specification

It is applied to the drainage pump (A) for discharging residual fluid to the outside of any working section of the fluid piping that has blocked the fluid flow,

A plurality of fluid inlets 10 formed at the bottom and a fluid outlet 11 formed to protrude on the upper outer surface are communicated by the fluid movement passage 12, and the cylindrical housing 13 having an arbitrary length;

The drive shaft 14 is mounted on the upper end of the housing 13 and the output shaft of the drive motor 14 is rotatably connected to the output shaft by a coupler 15, the long shaft-shaped rotating shaft accommodated in the housing 13;

A multi-stage impeller 17 mounted at the bottom of the rotating shaft 16 to move the fluid flowing through the fluid inlet 10 during rotation to the fluid outlet 11 along the fluid movement passage 12;

In order to prevent the rotating shaft 16 from shaking, a support piece 18 including a bushing rotatably supporting the rotating shaft 16 at an arbitrary position inside the housing 13 is provided.

At this time, when the impeller 17 is rotated by the rotating shaft 16 connected to the above-described driving motor 14, the technical content of preventing the rotating shaft 16 from being shaken by the support piece 18 including the bushing is described. Since it is commonly used in the technical field to which the specification belongs, a detailed description of their configuration and operation is omitted.

1 to 4, a fluid drainage device in a fluid pipe using a through-type drainage pump according to an embodiment of the present specification

A supply pipe 20 through which a fluid at a first temperature (eg, about 100 to 120° C.) flows and the through-type drainage pump A is detachably mounted;

A recovery pipe 19 through which a fluid at a second temperature (eg, about 40 to 50° C.) flows and the through-type drainage pump A is detachably mounted;

A plurality of secondary stage breakers 22 detachably mounted to the valves 34 mounted in the perforated holes formed in the recovery pipes and the supply pipes 19 and 20, to block the fluid flow in the working section 29;

By-pass pipe connecting the recovery pipe and supply pipe (19,20) except the working section (29) so that the fluid except the working section (29) of the recovery pipe and supply pipe (19,20) bypasses (23);

A water transport vehicle 24 for storing fluid drained by the drainage pump A from the recovery pipes and the supply pipes 19 and 20;

The fluid outlet 11 of the drainage pump (A) of the recovery pipe (19) communicates with the fluid inlet pipe of the supply pipe (20), and the fluid in the recovery pipe (19) is moved to the supply pipe (20) so that the supply pipe (20) A fluid transfer pipe 26 for lowering the fluid temperature;

A water tank 27 and a vertical multi-stage pump 35 for storing the fluid discharged from the water transport vehicle 24 or the recovery pipes and the supply pipes 19 and 20 and supplying the stored fluid to the recovery pipe 19; Including,

The through-type drainage pump (A) includes a housing (13) in which the fluid inlet (10) and the fluid outlet (11) formed in the lower part and the upper part are communicated by the fluid movement passage (12), and a rotating shaft accommodated in the housing (13) It characterized in that it comprises a multi-stage impeller 17 mounted on the lower end of the 16 and the rotating shaft 16, and a driving motor 14 mounted on the upper end of the housing 13 and connected to the rotating shaft 16.

To mount the through-type drainage pump (A) to the supply pipe 20 or the recovery pipe 19 described above

A branch pit 28 welded to one side of the supply pipe 20 or the recovery pipe 19;

A pressure removing valve 25 for drilling a hole in the supply pipe 20 or the recovery pipe 19 by the perforator 33, but for removing pressure in the supply pipe 20 or the recovery pipe 19;

After removing the perforator 33 from the perforated hole, an adapter 31 mounted on the intermediate shut-off valve 30 mounted on the perforated hole to mount the through-type drainage pump A;

A drainage manifold 32 communicating with the fluid outlet 11 of the through-type drainage pump A;

It characterized in that it further comprises a check valve 34 and a negative pressure removing pipe for removing the negative pressure in the pipe when draining the residual fluid from the supply pipe 20 or the recovery pipe 19.

Vertical multi-stage pump 35 for recovering the residual fluid drained from the above-described supply pipe 20 to the recovery pipe;

A through-hole and a valve 21 installed in the secondary stage breaker 22 to recover residual fluid from the supply pipe 20 to the recovery pipe through the through-type drainage pump A;

It characterized in that it further comprises a; after recovering the fluid in the bypass pipe 23 through the through-hole and the valve (21), for recovering to the recovery pipe 19;

A cooler 37 for cooling the high-temperature steam generated when removing the pressure in the supply pipe 20 after drilling a drilling hole in the supply pipe 20 by the above-described perforator 33;

A fan 38 for blowing external air to the cooler 37;

It characterized in that it further comprises; a steam outlet 39 for discharging the vapor of the cooler 37 to the outside and a high temperature air outlet for smelting the vapor of the vapor outlet 39.

In the drawings, reference numeral 28 is a branch pit that is welded and fixed to a perforated hole formed in the first and second fluid pipes 19 and 20.

Hereinafter, an example of use of a through-type drainage pump according to an embodiment of the present specification and a fluid drainage device in a fluid pipe using the same will be described according to the accompanying drawings.

As shown in Figure 2a, when the valves (V1, V2) are mounted at both ends of the work section 29 to be repaired as one side of the aforementioned recovery pipe 19 or supply pipe 20 leaks, the valve V1 , After closing V2), a through type drainage pump (A) can be installed in the working section 29 to drain residual fluid in the first fluid pipe 19 or the second fluid pipe 20 to a designated location.

As shown in FIG. 2B, when one of the aforementioned recovery pipes 19 or the supply pipes 20 needs to be repaired, the pit 28 for welding is fixed to the recovery pipes 19 or the supply pipes 20 by welding. Thereafter, an intermediate shut-off valve (for example, a knife valve may be used) is mounted on the pit 28 for branching, and is drilled in the recovery pipe 19 or the supply pipe 20 using a perforator mounted on the intermediate shut-off valve. After forming the hole, after removing the perforator from the intermediate shut-off valve, the secondary shut-off circuit breaker (22) is mounted on the intermediate shut-off valve to block the recovery pipe (19) or supply pipe (20) by the stopper at the bottom to block the fluid flow. have.

The fluid of the aforementioned recovery pipe 19 or supply pipe 20 is able to flow continuously during operation as it is bypassed through the bypass pipe 23.

Therefore, a through-type drainage pump A may be mounted on the work section 29 of the recovery pipe 19 or the supply pipe 20 to drain the residual fluid in the work section 29.

At this time, the intermediate shut-off valve is mounted on the pit 28 for welding and fixed to the above-described recovery pipe and supply pipes 19 and 20, and the perforator is detachably mounted on the intermediate shut-off valve to recover the pipe and supply pipe 19, 20) to form a perforated hole, the closed water recovery pipe and the supply pipe (19,20) by the stopper of the circuit breaker (22) to block the fluid flow is a technical content that is commonly used in the art to which this specification belongs Therefore, detailed descriptions of these components will be omitted.

As described above, when a leak is generated in the recovery pipe 19 or the supply pipe 20 and maintenance is required, the internal residual fluid in the working section 29 can be drained using a through-type drainage pump A. have.

To explain this in detail, when a leak occurs on one side of the supply pipe 20 described above and the work section 29 is repaired, the pit 28 for branching is welded to the supply pipe 20 (see FIG. 3A ). .

The intermediate shut-off valve 30 is mounted on the branching pipe 28, and the perforator 33 is detachably mounted on the intermediate shut-off valve 30 to penetrate the perforation hole through the supply pipe 20 by a wheel cutter. It forms (refer to b of FIG. 3).

After removing the perforator 33 from the intermediate shut-off valve 30 of the supply pipe 20, after removing the pressure in the pipe by removing the pressure in the pipe by driving the pressure relief valve 25 to remove the pressure inside the supply pipe 20 Mounting the adapter (31) (adapter) to the shut-off valve (30), through the housing (13) of the through-type drainage pump (A) adapter (31), the intermediate shut-off valve (30), through the branch pit (28) As the ball passes in sequence, a through-type drainage pump A may be mounted on the supply pipe 20 (see FIG. 3C ).

When the pressure of the supply pipe 20 is removed, a large amount of steam may be generated. At this time, the steam is condensed by the water tank 27, the cooler 37, and the fan 38 and discharged to the steam outlet 39, and the air used for cooling is heated to flow into the steam outlet 39 for ventilation. can do.

As shown in a and b of FIG. 3, the intermediate shut-off valve 30 is mounted on the pit 28 for welding and fixed to the recovery pipe 19 described above, and the perforator 33 is installed on the intermediate shut-off valve 30. After mounting to form a perforation hole in the recovery pipe 19, the perforator 33 is removed from the recovery pipe 19. The pressure inside the recovery pipe 19 is removed by operating the pressure relief valve 25.

As shown in c of FIG. 3, the adapter 31 is mounted on the intermediate shut-off valve 30 of the aforementioned recovery pipe 19, but the housing 13 of the through-type drainage pump A is connected to the adapter 31 and the middle. As the through-holes of the shut-off valve 30 and the branch pit 28 are sequentially passed, a through-type drainage pump A may be mounted on the recovery pipe 19.

1, 3 and 4, when driving the drive motor 14 mounted on the top of the housing 13 of the through-type pump (A) mounted on the above-described recovery pipe and supply pipe (19,20) The rotating shaft 16 connected to the output shaft of the driving motor 14 through the coupler 15 is rotated.

Therefore, due to the rotation of the impeller 17 mounted on the lower end of the rotating shaft 16, the fluid in the recovery pipe and the supply pipes 19 and 20 is provided to the housing 13 through the fluid inlet 10 formed through the lower portion of the housing 13. As it is sucked, it can be moved upward through the fluid transfer passage 12 inside the housing 13 to be discharged out of the through-type pump A through the fluid outlet 11 at the top of the housing 13.

As described above, some of the residual fluid discharged by driving the through-type drainage pump (A) mounted on the recovery pipe 19 is the pressure of the supply pipe 20 through the fluid transfer pipe 26 communicating with the fluid outlet 11 It is moved to the supply pipe 20 through the removal valve 25.

That is, the fluid temperature in the supply pipe 20 is supplied by supplying the fluid in the recovery pipe 19 maintaining an arbitrary temperature (about 40 to 50°C) to the supply pipe 20 maintaining an arbitrary temperature (about 100 to 120°C). It can be lowered to about 80 to 90 ℃.

The fluid discharged from the drainage pump (A) is the fluid discharge pipe (32) communicating with the fluid outlet (11) as the residual fluid of the recovery pipes and supply pipes (19, 20) is discharged by driving through the drainage pump (A). And a water transport vehicle 24 or a water tank 27 through a hose (or a pipe may be used).

Residual fluid discharged from the recovery pipes and the supply pipes 19 and 20 by the above-described through-type drainage pump A is moved to the water transport vehicle 24 and then recovered at a designated place or installed in the recovery pipe 20 The discharge fluid of the main pipe can be recovered into the bypass pipe of the recovery pipe 19 using the vertical multi-stage pump 35 through the through hole and the valve 21 installed in the secondary stage breaker 22.

Due to this, leaks are generated in the recovery pipes and the supply pipes 19 and 20, and the residual fluid of the recovery pipes and the supply pipes 19 and 20 (for example, referring to chemically treated heating hot water) is not discharged without permission. Rather, after temporarily storing in the water transport vehicle 24 or the water tank 27, by joining the recovery pipe 19, it is possible to prevent environmental pollution caused by unauthorized discharge of the chemically treated residual fluid. do.

2B and 4, after repairing the leaked parts of the aforementioned recovery pipes and supply pipes 19 and 20 (at this time, the intermediate blocking valve 30 mounted on the recovery pipes and supply pipes 19 and 20) Closed state), the remaining fluid in the bypass pipe 23 installed in the recovery pipes and the supply pipes 19 and 20 (chemically treated hot water for heating) is provided with a valve 21 mounted on the outer surface of the secondary water circuit breaker 22. Through the recovery of the fluid to flow into the water tank (27), using a vertical multi-stage pump (35) to inject it into the dynamic pressure valve (36) of the recovery pipe (19), or by using a water transport vehicle (24) designated Return to the place.

Here, although the above-described specification has been described with reference to preferred embodiments, those skilled in the art variously modify the specification without departing from the spirit and scope of the specification as set forth in the claims below. You will understand that you can change it.

10; Fluid inlet
11; Fluid outlet
12; Fluid transfer path
13; housing
14; Drive motor
15; Coupler
16; Rotating shaft
17; Impeller
18; Support
19; Collection pipe
20; Supply pipe
21; valve
22; Breaker
23; Bypass tube
24; Water transport
25; Pressure relief valve
26; Fluid transfer tube
27; Water tank
28; Quarter Feet
31; adapter
34; Check valve for negative pressure removal
35; Vertical multistage pump
36; Dynamic pressure valve
37; cooler
40; High temperature air outlet

Claims (5)

delete A supply pipe through which a fluid at a first temperature flows and a through-type drainage pump is detachably mounted;
A recovery pipe through which a fluid at a second temperature flows and a through-type drainage pump is detachably mounted;
A plurality of stage breakers for detachably mounted on a valve mounted in a perforation hole formed in the supply pipe and a recovery pipe, and blocking a fluid flow during operation in a work section;
A bypass pipe communicating the supply pipes and the recovery pipes except for the working section so that fluids other than the working section of the supply pipes and the recovery pipes are bypassed;
A water transport vehicle for storing fluid drained by the drain pump from the supply pipe and the recovery pipe;
A fluid transfer pipe for communicating the fluid outlet of the drain pump of the recovery pipe with the fluid inlet hole of the supply pipe, and moving the fluid of the recovery pipe to the supply pipe to lower the fluid temperature of the supply pipe;
It includes; a water tank for storing the water transport vehicle or the fluid drained from the supply pipe and the recovery pipe, and supplying the stored fluid to the recovery pipe;
The through-type drain pump includes a housing in which a fluid inlet and a fluid outlet formed in the lower part and the upper part are communicated by a fluid movement passage, a rotating shaft accommodated in the housing, and a multi-stage impeller mounted on the lower end of the rotating shaft, and on the upper part of the housing. In the fluid drainage device in the fluid pipe using a through-type drainage pump comprising a drive motor mounted and connected to the rotating shaft:
To install a through type drainage pump in the supply pipe or the recovery pipe
A branch pit welded to one side of the supply pipe or the recovery pipe;
A pressure removing valve for drilling a perforation hole in the supply pipe or the recovery pipe by a perforator, but removing pressure in the supply pipe or the recovery pipe;
After removing the perforator from the perforated hole, an adapter mounted to an intermediate blocking valve mounted on the perforated hole to mount a through-type drainage pump;
A drainage manifold communicating with the fluid outlet of the through-type drainage pump;
And a check valve for removing the negative pressure in the pipe when draining the residual fluid from the supply pipe or the recovery pipe. The fluid drainage device in a fluid pipe using a through-type drainage pump. delete According to claim 2,
A vertical multistage pump for recovering residual fluid drained from the supply pipe to the recovery pipe;
A through-hole and a valve installed in the secondary stage breaker to recover residual fluid from the supply pipe to the recovery pipe through the through-type drain pump;
And a fluid pressure valve for recovering the fluid in the bypass pipe through the through-hole and the valve and recovering the fluid in the bypass pipe. According to claim 2,
A cooler for cooling the hot steam generated when the pressure in the supply pipe is removed after drilling a hole in the supply pipe;
A fan for blowing external air to the cooler;
And a steam discharge port for discharging the steam of the cooler to the outside and a high temperature air discharge port for smelting the steam of the steam discharge port.

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