CN218376775U - Sand pumping system for circulating water forebay - Google Patents
Sand pumping system for circulating water forebay Download PDFInfo
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- CN218376775U CN218376775U CN202222430803.3U CN202222430803U CN218376775U CN 218376775 U CN218376775 U CN 218376775U CN 202222430803 U CN202222430803 U CN 202222430803U CN 218376775 U CN218376775 U CN 218376775U
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- circulating water
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Abstract
The utility model relates to a take out husky system for circulating water forebay, including the air compressor machine, the air compressor machine has the surge tank through compressed air hose connection, and the surge tank passes through compressed air hose connection on taking out the air inlet steel pipe of husky steel pipe, through the compressed air who utilizes the air compressor machine to produce certain pressure, through the air inlet steel pipe, gets into and takes out husky inside quick upflow of steel pipe, makes to take out husky steel pipe sunction inlet and forms the negative pressure, takes out debris such as sand and the shellfish of forebay bottom. When sundries are blocked, the sand pumping steel pipe can be backflushed by closing a manual butterfly valve at the outlet of the sand pumping steel pipe, so that the effect of dredging the sand pumping steel pipe is achieved.
Description
Technical Field
The utility model belongs to the technical field of thermal power plant's circulating water system overhauls, concretely relates to take out husky system for circulating water forebay.
Background
The circulating water system of the thermal power plant is a key system of the power plant and is an indispensable cooling system for maintaining the normal operation of the power plant. Most of thermal power plant circulating water constructed near the sea is taken from seawater, the seawater firstly filters impurities such as larger floaters through a trash rack and then enters a circulating water forebay, then is further filtered through a rotary filter screen and then enters a circulating water pump suction inlet, and finally is pressurized through a circulating water pump and then cools equipment; when the unit is stopped for maintenance, a steel gate needs to be arranged in a steel gate sealing groove at the inlet of the front pool, the circulating water front pool is pumped after seawater is isolated tightly, and after residual water is pumped, maintenance personnel need to go into the bottom of the circulating water front pool with the depth of 18 meters to clean sundries at the bottom of the front pool and perform tasks such as rotary filter screen maintenance and circulating water pump outer cylinder maintenance. Because debris such as sea sand shells in the sea water are easy to be piled up in the seal groove at the bottom of the steel gate plate, the tight sea water can not be isolated by the steel gate plate, and the maintenance personnel can not go into the bottom of the forebay to maintain the circulating water system equipment, so that the tight sea water can be isolated by putting the steel gate plate into the seal groove of the steel gate plate after cleaning up the debris such as the sea sand in the seal groove of the steel gate plate.
Generally, a sand pump is placed in a sealing groove of a steel gate plate for sand pumping, the sand pump impeller is extremely easy to block due to more and larger shells in seawater, and in addition, the seawater has stronger corrosivity and the water pressure at the bottom of a forebay is larger, the sand pump motor is easy to enter water, so that the insulation value is reduced, and the sand pump is damaged. The common method has low sand pumping efficiency, consumes a large amount of manpower and material resources and seriously influences the overhaul period.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take out husky system for circulating water forebay to overcome prior art and utilize to take out husky pump and take out husky inefficiency, the fragile problem of sand pump.
The utility model provides a take out husky system for circulating water forebay, includes the air compressor machine, and the air compressor machine has the surge tank through compressed air hose connection, and the surge tank is connected on the air inlet steel pipe of taking out husky steel pipe through compressed air hose.
Further, the air inlet steel pipe is fixedly connected to the lower end of the sand pumping steel pipe.
Furthermore, the sand pumping steel pipe is of a multi-section structure.
Furthermore, the adjacent sections of the sand pumping steel pipes are connected through flanges.
Furthermore, the end of the sand pumping steel pipe is fixedly connected with a butterfly valve.
Furthermore, the end part of the bottom sand pumping steel pipe is provided with a sand inlet which is horizontally arranged.
Furthermore, install portable gallows on taking out husky steel pipe.
Furthermore, a hoisting block is hung above the movable supporting and hanging frame.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model relates to a take out husky system for circulating water forebay, through taking out husky steel pipe and being close to bottom sand inlet department and setting up the air inlet, the compressed gas that utilizes the air compressor machine to produce lets in and takes out husky steel pipe and form pressure differential, and then takes out the debris of forebay bottom, compares with the husky pump of traditional taking out of utilization, and the air compressor machine that this system used need not put into the sea water, has promoted device life, has promoted and has taken out husky efficiency, has improved the stability of taking out husky system.
Preferably, the air compressor improves compressed gas hose connection and is connected with the surge tank, and the stability of system's pressure can be guaranteed to the surge tank.
Preferably, take out husky steel pipe and adopt multistage formula structure, be convenient for transport, assembly and dismantlement.
Preferably, install portable gallows on taking out husky steel pipe, hang the hoist block above the gallows, guarantee to take out husky steel pipe and advance husky mouth and can the removal of horizontal, vertical direction, be convenient for simultaneously take out the installation and the dismantlement of husky steel pipe.
Preferably, the end part of the sand pumping steel pipe is fixedly connected with a butterfly valve, when sundries are blocked, the butterfly valve at the outlet of the sand pumping steel pipe can be manually closed to perform backflushing on the sand pumping steel pipe, so that the fault tolerance of the system is improved, and the stability of the sand pumping system is ensured.
Drawings
Fig. 1 is a sand pumping system structure diagram for a circulating water forebay in an embodiment of the present invention.
In the figure, 1, an air compressor; 2. a compressed air hose; 3. a surge tank; 4. an air inlet; 5. a forebay; 6. pumping a sand steel pipe; 7. a flange; 8. a butterfly valve; 9. a movable support and hanger; 10. a sand collecting pool; 11. a sand inlet; 12. hoisting a hoist.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1, a sand pumping system for a circulating water forebay comprises an air compressor 1, wherein the air compressor 1 is connected with a pressure stabilizing tank 3 through a compressed air hose 2, and the pressure stabilizing tank 3 is connected on an air inlet steel pipe 4 of a sand pumping steel pipe 6 through the compressed air hose 2.
Specifically, the air compressor 1 is connected to the lower end of a pressure stabilizing tank 3 through a compressed air hose 2, the compressed air hose 2 led out from the upper end of the pressure stabilizing tank 3 is connected with an air inlet steel pipe 4, wherein the pressure stabilizing tank 3 is used for maintaining the pressure of the system, when the pressure of the system is reduced to reach a certain value, the air compressor 1 in the system can be automatically started to increase the pressure of the system, when the pressure reaches a specified value, the air compressor 1 can be stopped, and the pressure of the system is maintained by the pressure stabilizing tank; this system is through utilizing air compressor machine 1 to replace taking out the husky pump, and the husky pump is taken out to the pressure differential of 6 bottoms departments of husky steel pipe of taking out in the utilization, need not put into circulating water forebay 5 with air compressor machine 1, and it is easy that the impeller is dead by the card in the circulating water forebay 5, sea water corrosivity is stronger and 5 bottom water pressure great leading to take out husky pump motor and intake and lead to the insulating value to reduce to have solved the tradition and taken out husky pump and damage the problem.
As shown in fig. 1, the air inlet steel pipe 4 is fixedly connected to the lower end of the sand pumping steel pipe 6, the sand pumping steel pipe 6 is of a multi-section structure, and adjacent sections of the sand pumping steel pipe 6 are connected through a flange 7; the sand pumping steel pipe 6 is of an inverted L-shaped structure, and the bottom sealing groove of the steel gate plate in the circulating water forebay 5 is 18 meters away from the ground, so that the sand pumping steel pipe 6 is assembled into three sections, the adjacent sand pumping steel pipes are fixedly connected through the flange 7, and the air inlet steel pipe 4 is fixedly connected to the bottom of the sand pumping steel pipe 6 at the lowest section.
As shown in fig. 1, the end of the sand pumping steel pipe 6 is fixedly connected with a butterfly valve 8, the end of the sand pumping steel pipe 6 at the bottom is provided with a sand inlet 11, and the sand inlet 11 is horizontally arranged; the port of the bottom of the assembled sand pumping steel pipe 6 is a sand inlet 11, the port of the other side of the sand pumping steel pipe is provided with a butterfly valve 8, the sand inlet 11 must be ensured to be horizontal in order to ensure the sand pumping efficiency, when sundries are blocked, the manual butterfly valve 8 welded at the outlet of the sand pumping steel pipe 6 in a sealing mode can be manually closed, and the sand pumping steel pipe 6 is backflushed by utilizing high-speed airflow in the sand pumping steel pipe 6.
As shown in fig. 1, a movable support hanger 9 is mounted on the sand pumping steel pipe 6, and a hoist 12 is suspended above the movable support hanger 9; the total length of a sealing groove at the bottom of the steel gate plate in the circulating water forebay 5 is 10 meters, the sand pumping opening 11 can be horizontal conveniently, the sand pumping steel pipe 6 is moved in the vertical direction to pump sand, and the sand pumping steel pipe 6 is mounted and dismounted conveniently, two movable hanging brackets 9 for pumping the sand steel pipe 6 are designed, and the position of the sand pumping steel pipe 6, which enters the sand opening 11, is fixed by hanging a hoisting block 12 above the movable hanging brackets.
Examples
The air compressor 1 is a movable screw air compressor, the sand pumping steel pipe 6 is of an inverted L-shaped structure and is divided into three sections, the distance between an air inlet 11 of the sand pumping steel pipe and a sand inlet at the bottom is 1 meter, the butterfly valve 8 is a manual butterfly valve, the butterfly valve 8 is welded at a sand outlet at the end part of the sand pumping steel pipe 6, and the sand outlet is positioned above the sand collecting pool 10;
with a volume flow of 6m 3 The movable screw air compressor 1 outputs 0.5Mpa compressed air which enters 4m through the phi 50 multiplied by 6 compressed air hose 2 3 In the pressure stabilizing tank 3, the compressed air is connected with a phi 38X 3 air inlet steel pipe 4 through a phi 50X 6 compressed air hose 2, so that the compressed air of 0.5Mpa horizontally enters a phi 219X 10 sand pumping steel pipe 6; because the distance between the compressed air inlet of the sand pumping steel pipe 6 and the bottom of the sand pumping steel pipe is 1 meter, the compressed air can rapidly flow away towards the upper part of the sand pumping steel pipe 6 with smaller water pressure, so that the bottom 6 of the sand pumping steel pipe is shapedForming a negative pressure area, and pumping sand, shellfish and other impurities in the sealing groove at the bottom of the steel gate plate in the circulating water forebay 5 into a sand collecting pool 10 on the ground.
After the sundries near the sand inlet 11 are cleaned, the movable support and hanger 9 is moved to drive the sand pumping steel pipe 6 to move to continue cleaning.
The inner diameter of the sand pumping steel pipe 6 is 200mm, so that large shellfish and sundries can smoothly pass through the sand pumping steel pipe in the sand removing process, and the blocking probability is greatly reduced; when sundries are blocked, the manual butterfly valve 8 which is welded at the outlet of the sand pumping steel pipe 6 in a sealing mode can be closed manually, and the sand pumping steel pipe 6 can be backflushed by utilizing the pressure difference in the sand pumping steel pipe at the bottom.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (8)
1. The utility model provides a take out husky system for circulating water forebay, its characterized in that includes air compressor machine (1), and air compressor machine (1) is connected with surge tank (3) through compressed air hose (2), and surge tank (3) are connected on air inlet steel pipe (4) of taking out husky steel pipe (6) through compressed air hose (2).
2. The sand pumping system for the circulating water forebay as claimed in claim 1, wherein the air inlet steel pipe (4) is fixedly connected to the lower end of the sand pumping steel pipe (6).
3. A sand pumping system for a circulating water forebay as claimed in claim 1 wherein the sand pumping steel tube (6) is of multi-section construction.
4. A sand pumping system for a circulating water forebay as claimed in claim 3, wherein adjacent sections of sand pumping steel pipe (6) are connected by flanges (7).
5. The sand pumping system for the circulating water forebay as claimed in claim 1, wherein the end of the sand pumping steel pipe (6) is fixedly connected with a butterfly valve (8).
6. The sand pumping system for the circulating water forebay as claimed in claim 1, wherein the end of the bottom sand pumping steel pipe (6) is provided with a sand inlet (11), and the sand inlet (11) is horizontally arranged.
7. A sand pumping system for a circulating water forebay as claimed in claim 1 wherein the sand pumping steel pipe (6) is fitted with a mobile support hanger (9).
8. A sand pumping system for a circulating water forebay as claimed in claim 7, wherein a hoist block (12) is suspended above the mobile support hanger (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222430803.3U CN218376775U (en) | 2022-09-14 | 2022-09-14 | Sand pumping system for circulating water forebay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222430803.3U CN218376775U (en) | 2022-09-14 | 2022-09-14 | Sand pumping system for circulating water forebay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218376775U true CN218376775U (en) | 2023-01-24 |
Family
ID=84973934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222430803.3U Active CN218376775U (en) | 2022-09-14 | 2022-09-14 | Sand pumping system for circulating water forebay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218376775U (en) |
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2022
- 2022-09-14 CN CN202222430803.3U patent/CN218376775U/en active Active
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