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CN-119436110-B - High-temperature condensate water recycling device

CN119436110BCN 119436110 BCN119436110 BCN 119436110BCN-119436110-B

Abstract

The invention belongs to the technical field of recycling of coking high-temperature condensate, and discloses a high-temperature condensate recycling device, which comprises an expansion tank body, wherein a condensate inlet pipe is welded on the inner wall of one side of the bottom of the expansion tank body, the bottom of the inner wall of one side of the expansion tank body is welded with a first liquid discharge pipe, a negative pressure exhaust pipe is welded right above the first liquid discharge pipe, a drain pipe is welded at the axis of the bottom of the expansion tank body, and a drain assembly is arranged on the inner wall of the bottom of the expansion tank body. The invention utilizes the flowing low-temperature gaseous working medium and the high-temperature condensed water to carry out heat exchange treatment, thereby not only effectively reducing the temperature of the high-temperature condensed water and realizing heat recovery and utilization for downstream users after cooling, but also enabling the heated gaseous working medium to drive a generator to rotate so as to realize power generation treatment, and further enabling the high-temperature liquid working medium recovered and generated in the middle process to carry out heat exchange and utilization so as to fully recycle the heat of the high-temperature condensed water.

Inventors

  • CAO MINGTAO
  • LI HUA

Assignees

  • 中冶焦耐(大连)工程技术有限公司

Dates

Publication Date
20260512
Application Date
20241204

Claims (8)

  1. 1. The utility model provides a high temperature condensate recycling device, includes that bottom one side inner wall welds expansion tank body (2) that have condensate ingress pipe (1), its characterized in that, expansion tank body (2) one side inner wall bottom welding has first fluid-discharge tube (4), and expansion tank body (2) are located and have negative pressure exhaust tube (5) directly over first fluid-discharge tube (4), expansion tank body (2) bottom axle center department welding has blow off pipe (10), and expansion tank body (2) bottom inner wall is equipped with the blowdown subassembly, the blowdown subassembly is including rotating first pivot (11) that set up in expansion tank body (2) bottom axle center department, and the stirring paddle (12) that the equidistance distributes are welded along the incline direction to first pivot (11) peripheral wall, first helical gear (13) are welded to first helical gear (13) are driven in the top vertical direction meshing, second helical gear (15) are welded to second (16) terminal outer wall, and second helical gear (16) rotate setting on locating support (17), second helical gear (16) are glued on the tip magnet (18) outer wall; The end part of the first liquid discharge pipe (4) is fixedly provided with a second gate valve (23) through a bolt, one side of the second gate valve (23) is provided with a third gate valve (25), an adjusting valve (24) is arranged between the second gate valve (23) and the third gate valve (25) through a bolt, one end pipeline bottom which is mutually far away from the second gate valve (23) and the third gate valve (25) is communicated with a stop valve (26), the end part of the third gate valve (25) is communicated with a hot water conveying pipe (27), the hot water conveying pipe (27) is communicated with a heat exchange liner (29), the outside of the heat exchange liner (29) is provided with an evaporation protecting shell (28), and the other end of the heat exchange liner (29) is welded with a low-temperature return pipe (30); One side inner wall of the evaporation protecting shell (28) is communicated with a conveying pipe (32), one end, far away from the evaporation protecting shell (28), of the conveying pipe (32) is welded with a cylindrical outer shell (33), the inner wall of the cylindrical outer shell (33) is welded with a cylindrical inner shell (34), one end inner wall of the cylindrical inner shell (34) is communicated with a first connecting pipe (38), the end part of the first connecting pipe (38) is fixedly provided with an air inlet pipe (39) through a bolt, the air inlet pipe (39) is welded with a spiral heat exchange pipe (40), the outside of the spiral heat exchange pipe (40) is provided with a condensation outer shell (41), one end inner wall, far away from the air inlet pipe (39), of the spiral heat exchange pipe (40) is welded with a second liquid discharge pipe (42), the second liquid discharge pipe (42) is communicated with a refrigerant pump (43), the output end of the refrigerant pump (43) is connected with a second connecting pipe (44) in a threaded manner, one side inner wall of the condensation outer shell (41) is communicated with an air inlet pipe (45), and the other side inner wall of the condensation outer shell (41) is communicated with a drain pipe (46); The inner wall of cylindricality inner shell (34) is the heliciform and has seted up the mounting hole that the equidistance distributes, and the inner wall of mounting hole all welds water conservancy diversion nozzle (35), the inner wall of cylindricality inner shell (34) is equipped with screw blade (36), and the one end outer wall of screw blade (36) is connected with generator (37) through the shaft coupling.
  2. 2. The high-temperature condensate recycling device according to claim 1, wherein an end sealing cover (3) is fixed on the top outer wall of the expansion tank body (2) through a snap lock, a steam conveying pipe (6) is communicated with the top inner wall of the end sealing cover (3), a check valve (7) is fixed on the top of the steam conveying pipe (6) through a bolt, a first gate valve (8) is communicated with the tail end of the top of the check valve (7), and one end, far away from the check valve (7), of the first gate valve (8) is connected with a deaerator ingress pipe (9).
  3. 3. The high-temperature condensate recycling device according to claim 1, wherein a cleaning scraping blade (14) is welded on the outer wall of one side of the top of the first rotating shaft (11), the outer wall of the end part of the cleaning scraping blade (14) is tightly attached to the inner wall of the periphery of the expansion tank body (2), and the thickness of the cleaning scraping blade (14) is matched with the gap size of the first magnet sheet (18) from the inner wall of the expansion tank body (2).
  4. 4. A high-temperature condensate water recycling device according to claim 3, wherein the outer wall of the expansion tank body (2) is provided with a second magnet piece (19) at the axle center of the first magnet piece (18), and a servo motor (20) is adhered at the axle center of the second magnet piece (19).
  5. 5. The high-temperature condensate water recycling apparatus as recited in claim 4, wherein the first magnet piece (18) and the second magnet piece (19) are made of alnico magnets, and the first magnet piece (18) and the second magnet piece (19) are opposite in magnetism.
  6. 6. The high-temperature condensate recycling device according to claim 1, wherein a fixing bracket (21) is welded on the inner wall of one side of the expansion tank body (2), and a remote transmission liquid level meter (22) is inserted and installed on the fixing bracket (21).
  7. 7. The high-temperature condensate recycling device according to claim 1, wherein the heat exchange liner (29) is in multi-disc-shaped distribution, heat conducting fins (31) distributed equidistantly are welded on the outer wall of the heat exchange liner (29) in a gap mode, and the flow direction of the high-temperature high-pressure gaseous working medium in the evaporation protective shell (28) is opposite to that of the high-temperature condensate in the heat exchange liner (29).
  8. 8. The high-temperature condensate water recycling device according to claim 1, wherein the flowing direction of working medium on the inner wall of the spiral heat exchange tube (40) is opposite to the flowing direction of cold water inside the condensation shell (41), the size of the spiral heat exchange tube (40) is matched with the size of the inner wall of the condensation shell (41), and metal heat conducting fins are welded on the outer wall of the spiral heat exchange tube (40).

Description

High-temperature condensate water recycling device Technical Field The invention relates to the technical field of recycling of coking high-temperature condensate, in particular to a high-temperature condensate recycling device. Background In the existing coking enterprises, because the waste heat of the system is more and the low-grade heat users are lacked, the high-temperature condensed water cannot be directly utilized, and the cooling treatment is required to be carried out by external cold water additionally. At present, in the recycling process of high-temperature condensed water, circulating water is mostly adopted for cooling and then is sent to a user for recycling, so that the recycling treatment of heat energy is realized. However, in the process of treatment and recycling, when the high-temperature condensate is reduced to a proper temperature for recycling, a large amount of heat energy of the high-temperature condensate is wasted, a large amount of circulating cooling water is consumed, and the economic waste and the serious waste are avoided. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a high-temperature condensate water recycling device. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a high temperature condensate recycling device, includes that bottom one side inner wall welds the expansion tank body that has the condensate ingress pipe, the one side inner wall bottom of the expansion tank body has welded first fluid-discharge tube, and the expansion tank body is located the welding of first fluid-discharge tube directly over has the negative pressure exhaust tube, expansion tank body bottom axle center department has welded the blow off pipe, and expansion tank body bottom inner wall is equipped with the blowdown subassembly, the blowdown subassembly is including rotating the first pivot that sets up in expansion tank body bottom axle center department, and the outer wall has the stirring paddle that equidistance distributes along the incline direction welding around the first pivot, the top outer wall of first pivot has welded first helical gear, and the meshing of first helical gear top vertical direction is driven has the second helical gear, the terminal outer wall of second helical gear has welded the second pivot, and the second pivot rotates and set up on the locating support, the tip outer wall of second pivot has first magnet piece to bond; The end part of the first liquid discharge pipe is fixedly provided with a second gate valve through a bolt, one side of the second gate valve is provided with a third gate valve, a regulating valve is arranged between the second gate valve and the third gate valve through a bolt, the bottoms of pipelines at one ends, far away from each other, of the second gate valve and the third gate valve are communicated with each other, the end part of the third gate valve is communicated with a hot water conveying pipe, the hot water conveying pipe is communicated with a heat exchange liner, the outside of the heat exchange liner is provided with an evaporation protecting shell, and the other end of the heat exchange liner is welded with a low-temperature return pipe; The evaporation shell is characterized in that a conveying pipe is communicated with one side inner wall of the evaporation shell, one end of the conveying pipe, far away from the evaporation shell, is welded with a cylindrical outer shell, the inner wall of the cylindrical outer shell is welded with a cylindrical inner shell, one end inner wall of the cylindrical inner shell is communicated with a first connecting pipe, the end of the first connecting pipe is fixedly provided with an air inlet pipeline through a bolt, the air inlet pipeline is welded with a spiral heat exchange pipe, a condensing outer shell is arranged outside the spiral heat exchange pipe, one end inner wall of the spiral heat exchange pipe, far away from the air inlet pipeline, is welded with a second drain pipe, the second drain pipe is communicated with a refrigerant pump, an output end of the refrigerant pump is in threaded connection with a second connecting pipe, the second connecting pipe is communicated with one side inner wall of the evaporation shell, one side inner wall of the condensing outer shell is communicated with a water inlet pipe, and the other side inner wall of the condensing outer shell is communicated with a drain pipe. Preferably, the top outer wall of the expansion tank body is fixed with an end sealing cover through a snap lock, the top inner wall of the end sealing cover is communicated with a steam conveying pipe, the top of the steam conveying pipe is fixedly provided with a check valve through a bolt, the tail end of the top of the check valve is communicated with a first gate valve, and one end of the first gate valve, far away from the check valve, is connecte