CN217482751U

CN217482751U - Drainage device of tubular heater

Info

Publication number: CN217482751U
Application number: CN202220769972.7U
Authority: CN
Inventors: 姜倩妮; 马忠南; 北迪; 刘喆; 于沐阳; 刘舜; 辛泽宇; 刘振航; 李钰; 赵子辰; 姜吉鸿; 李佳; 杨家俊; 王子嘉; 齐伊蒙
Original assignee: Huaneng Dalian Thermal Power Co Ltd
Current assignee: Huaneng Dalian Thermal Power Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-09-23
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a drainage device of a tubular heater, which comprises two shell-and-tube heaters, a seawater clean water tank, an ultrafiltration membrane system and a secondary reverse osmosis water tank, wherein the water outlet at the lower end of the two shell-and-tube heaters is connected with an L-shaped circulating pipe, the tail end of the L-shaped circulating pipe is connected with the upper end of one side of the seawater clean water tank, the upper end of one side of the seawater clean water tank is connected with a seawater inlet pipe, the ultrafiltration membrane system comprises an organism box, a first drain pipe is connected between the seawater clean water tank and the organism box, a second drain pipe is connected between the lower end of the other side of the machine body box and the upper end of the second-stage reverse osmosis water tank, and the steam side drainage of the shell-and-tube heater is changed into the seawater clean water tank, so that the steam side drainage can be smoothly discharged, the temperature of the seawater clean water tank can be increased by using the waste heat of the drainage, the drainage and heat recovery is achieved, and the water production capacity of the ultrafiltration membrane system and the second-stage reverse osmosis water tank is improved.

Description

Drainage device of tubular heater

Technical Field

The utility model relates to an industrial production technical field specifically is a tubular heater hydrophobic means.

Background

The most typical dividing wall type heater is the shell-and-tube heater used by the ultrafiltration system of the current industrial production seawater pretreatment equipment, and the shell-and-tube heater has a long history in industrial application and consists of a tube bundle, a shell, a tube box and other components. Two ends of the heat exchange tube are fixed on the tube plate, and the tube bundle and the tube plate are encapsulated in the shell cylinder. Seawater enters the heater from the pipe box at one end, flows through the heat exchange pipe to finish heat exchange and then flows out from the pipe box at the other end. Steam enters the heater from the shell side inlet, and is discharged from the lower drainage port after being condensed.

In order to effectively recycle the drainage, most of the seawater desalination system adopts a mode of draining the drainage into a primary reverse osmosis water tank and a secondary reverse osmosis water tank; once the heat exchange tube bundle in the heater is damaged and leaks, the water quality of the steam side drainage can be polluted. And the steam side water outlet of the common heater is connected with the bottoms of the first-stage reverse osmosis water tank and the second-stage reverse osmosis water tank, when the water level of the water tank reaches a certain height, the drained water cannot be normally recycled to the water tank due to insufficient pressure, so that the loss of the drained water and heat is caused

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tubular heater hydrophobic means to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a tubular heater hydrophobic means, is including two shell and tube heaters, sea water clean water basin, ultrafiltration membrane system, second grade reverse osmosis water tank, two the same horizontal plane evenly distributed of shell and tube heater, two the lower extreme delivery port department of shell and tube heater all is connected with L type runner pipe, the end-to-end connection of L type runner pipe is in one side upper end in sea water clean water basin, one side upper end in sea water clean water basin is connected with the sea water and advances the pipe, the ultrafiltration membrane system includes organism case, be connected with first drain pipe between sea water clean water basin and the organism case, first drain pipe is close to sea water clean water basin one end and installs first booster pump, be connected with the second drain pipe between the opposite side lower extreme of organism case and the upper end of second grade reverse osmosis water tank, the second drain pipe is close to organism case one side and installs second booster pump.

Furthermore, a connecting shell is connected between the two shell-and-tube heaters.

Furthermore, a Y-shaped connecting pipe is connected between the water outlets of the two shell-and-tube heaters, and the lower end of the Y-shaped connecting pipe is connected to the L-shaped circulating pipe.

Furthermore, control valves are installed at the connection positions of the water outlets of the two shell-and-tube heaters and the Y-shaped connecting pipe.

Furthermore, the capacity of the seawater clean water pool is 15m by 5m by 4m, and the seawater clean water pool is lower than the two shell-and-tube heaters.

Furthermore, the bottom of second grade reverse osmosis water tank installs the support ring, a plurality of support columns are installed to the bottom equidistance of support ring.

Furthermore, the ultrafiltration membrane system also comprises a plurality of ultrafiltration membrane tubes, a controller is arranged in the machine body box, an upper circulating tube and a lower circulating tube are respectively arranged on the upper side and the lower side of the machine body box, the ultrafiltration membrane tubes are arranged between the upper circulating tube and the lower circulating tube, and an electric control valve is arranged at the joint of the ultrafiltration membrane tubes and the upper circulating tube.

Compared with the prior art, the beneficial effects of the utility model are that:

the steam side drain port of the traditional heater is designed to be connected to the bottom of the secondary reverse osmosis water tank, and when the height of the water tank reaches a certain height, drain water cannot be effectively discharged into the secondary reverse osmosis water tank; the steam side drainage of the shell-and-tube heater is changed to be drained to the seawater clean water tank, firstly, the steam side drainage can be smoothly drained, the situation that the steam side water level of the shell-and-tube heater is triggered to trip when reaching a high value is prevented, secondly, the temperature of the seawater clean water tank is improved by using the waste heat of the drainage, the drainage and heat recovery is achieved, the water production capacity of an ultrafiltration membrane system and a second-stage reverse osmosis water tank is improved, meanwhile, the water quality safety of the second-stage reverse osmosis water tank can be ensured, and if the heat exchange tube bundle inside the shell-and-tube heater is damaged and leaks, the situation that a polluted water source directly enters the second-stage reverse osmosis water tank can be effectively avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an enlarged view of area B of FIG. 1;

FIG. 4 is a cross-sectional view of the ultrafiltration membrane system of the present invention;

in the figure: 1. a shell-and-tube heater; 2. a seawater clean water tank; 3. an ultrafiltration membrane system; 4. a secondary reverse osmosis water tank; 5. an L-shaped flow-through tube; 6. a first pressurized water pump; 7. a first drain pipe; 8. a second pressurized water pump; 9. a second drain pipe; 11. connecting the shell; 12. a Y-shaped connecting pipe; 13. a control valve; 21. a seawater inlet pipe; 31. a machine body box; 32. a controller; 33. an ultrafiltration membrane tube; 34. an upper circulation pipe; 35. a lower flow pipe; 36. an electrically controlled valve; 41. a support ring; 42. and (4) a support column.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the invention herein is for the purpose of describing particular embodiments and is not intended to limit the invention, and the use of the term "and/or" herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present invention provides a technical solution: a tubular heater drainage device comprises two shell-and-tube heaters 1, a seawater clean water tank 2, an ultrafiltration membrane system 3, a second-stage reverse osmosis water tank 4, wherein the two shell-and-tube heaters 1 are uniformly distributed on the same horizontal plane, the lower end water outlet of the two shell-and-tube heaters 1 is connected with an L-shaped runner pipe 5, the tail end of the L-shaped runner pipe 5 is connected with the upper end of one side of the seawater clean water tank 2, the upper end of one side of the seawater clean water tank 2 is connected with a seawater inlet pipe 21, the ultrafiltration membrane system 3 comprises a machine body tank 31, a first drainage pipe 7 is connected between the seawater clean water tank 2 and the machine body tank 31, one end of the first drainage pipe 7 close to the seawater clean water tank 2 is provided with a first pressure water pump 6, the lower end of the other side of the machine body tank 31 is connected with a second drainage pipe 9, the second drainage pipe 9 is close to one side of the machine body tank 31 and is provided with a second pressure water pump 8, the steam side drain port of the traditional heater is designed and connected to the bottom of the secondary reverse osmosis water tank 4, and when the height of the water tank reaches a certain height, drain water cannot be effectively discharged into the secondary reverse osmosis water tank 4; drainage of the steam side of a shell-and-tube heater 1 is changed to be drained to a seawater clean water tank 2, firstly, drainage of the steam side can be smoothly drained, when the water level of the steam side of the shell-and-tube heater 1 is prevented from reaching a high value, the shell-and-tube heater 1 is triggered to trip out in a protection action, secondly, the temperature of the seawater clean water tank 2 is improved by using waste heat of drainage, drainage and heat recovery are achieved, the water production capacity of an ultrafiltration membrane system 3 and a secondary reverse osmosis water tank 4 is improved, meanwhile, the water quality safety of the secondary reverse osmosis water tank 4 can be ensured, if the internal heat exchange tube bundle of the shell-and-tube heater 1 is damaged and leaks, and the situation that a polluted water source directly enters the secondary reverse osmosis water tank 4 can be effectively avoided.

Please refer to fig. 1 again, a connecting shell 11 is connected between the two shell-and-tube heaters 1, and the shell-and-tube heaters 1 can be ensured to be parallel better by the connecting shell 11, so as to increase the stability of the device.

Please refer to fig. 2 again, a Y-shaped connecting pipe 12 is connected between the water outlets of the two shell-and-tube heaters 1, and the lower end of the Y-shaped connecting pipe 12 is connected to the L-shaped circulating pipe 5, so as to realize the synchronous circulation at the water outlet of the shell-and-tube heater 1; two control valve 13 is all installed to shell and tube heater 1's delivery port and Y type connecting pipe 12 junction, and after damaged, interior hourglass appear in the inside heat exchange tube bank of shell and tube heater 1 of one side, can close the control valve 13 of this side, prevent to continuously pollute sea water clean water basin 2.

Please refer to fig. 1 again, the capacity of the seawater clean water basin 2 is 15m x 5m x 4m, the seawater clean water basin 2 is lower than the two shell-and-tube heaters 1, and the seawater clean water basin 2 is generally installed at the place 2m underground, by this method, the shell-and-tube heaters 1 can drain water smoothly into the seawater clean water basin 2 by using potential energy difference, and the equipment safety is ensured while the water drainage is smooth.

Referring to fig. 3 again, a support ring 41 is installed at the bottom of the secondary reverse osmosis water tank 4, and a plurality of support columns 42 are installed at the bottom of the support ring 41 at equal intervals, so as to ensure the balance of the secondary reverse osmosis water tank 4.

Please refer to fig. 4, the ultrafiltration membrane system 3 further includes a plurality of ultrafiltration membrane tubes 33, a controller 32 is installed in the housing box 31, an upper circulation tube 34 and a lower circulation tube 35 are respectively installed on the upper side and the lower side of the housing box 31, the plurality of ultrafiltration membrane tubes 33 are installed between the upper circulation tube 34 and the lower circulation tube 35, an electric control valve 36 is installed at a connection position of the ultrafiltration membrane tubes 33 and the upper circulation tube 34, the ultrafiltration membrane tubes 33 are prior art and are not described in detail, and more thorough ultrafiltration can be achieved through the plurality of ultrafiltration membrane tubes 33 of the ultrafiltration membrane system 3.

The utility model discloses a concrete operation as follows:

hydrophobic arranging to sea water clean water basin 2 of 1 vapour side of shell and tube heater, firstly can discharge the hydrophobic smooth discharge in vapour side, when preventing that 1 vapour side water level of shell and tube heater from reaching the high value, trigger 1 protection action tripping operation of shell and tube heater, secondly usable hydrophobic waste heat improves 2 temperatures in sea water clean water basin, reach hydrophobic and thermal recovery, improve milipore filter system 3 and 4 water production capacities of second grade reverse osmosis water tank simultaneously, can ensure 4 water quality safety of second grade reverse osmosis water tank simultaneously, if the damage appears in 1 inside heat exchange tube bundles of shell and tube heater, interior hourglass, can effectively avoid receiving the direct second grade reverse osmosis water tank 4 that gets into of contaminated water source.

The above description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the method and the technical solution of the present invention are not substantially improved or directly applied to other occasions without improvement, and are all within the protection scope of the present invention.

Claims

1. The utility model provides a tubular heater drainage device, includes two shell and tube heaters (1), sea water clean water basin (2), milipore filter system (3), second grade reverse osmosis water tank (4), its characterized in that, two the same horizontal plane evenly distributed of shell and tube heater (1), two the lower extreme delivery port department of shell and tube heater (1) all is connected with L type runner pipe (5), the end-to-end connection of L type runner pipe (5) is in one side upper end of sea water clean water basin (2), one side upper end of sea water clean water basin (2) is connected with sea water inlet pipe (21), milipore filter system (3) includes organism case (31), be connected with first drain pipe (7) between sea water clean water basin (2) and organism case (31), first pressure water pump (6) are installed to first drain pipe (7) near sea water clean water basin (2) one end, a second drain pipe (9) is connected between the lower end of the other side of the machine body box (31) and the upper end of the second-stage reverse osmosis water tank (4), and a second pressure water pump (8) is installed on one side, close to the machine body box (31), of the second drain pipe (9).

2. Hydrophobic arrangement of a tubular heater according to claim 1, characterized in that a connecting shell (11) is connected between the two shell and tube heaters (1).

3. The tubular heater hydrophobic device as claimed in claim 1, wherein a Y-shaped connecting pipe (12) is connected between the water outlets of the two tubular heaters (1), and the lower end of the Y-shaped connecting pipe (12) is connected to the L-shaped flow pipe (5).

4. The tubular heater hydrophobic device as claimed in claim 3, wherein the junction of the water outlet of the two tubular heaters (1) and the Y-shaped connecting pipe (12) is equipped with a control valve (13).

5. A tubular heater trap according to claim 1, characterized in that the seawater clean water basin (2) has a capacity of 15m x 5m x 4m, and the seawater clean water basin (2) is located at a lower level than the two shell and tube heaters (1).

6. The tubular heater hydrophobic device as claimed in claim 1, wherein the support ring (41) is installed at the bottom of the secondary reverse osmosis water tank (4), and a plurality of support columns (42) are installed at the bottom of the support ring (41) at equal intervals.

7. The tubular heater hydrophobic device according to claim 1, wherein the ultrafiltration membrane system (3) further comprises a plurality of ultrafiltration membrane tubes (33), a controller (32) is installed in the body box (31), an upper circulation tube (34) and a lower circulation tube (35) are respectively installed on the upper side and the lower side of the body box (31), the plurality of ultrafiltration membrane tubes (33) are installed between the upper circulation tube (34) and the lower circulation tube (35), and an electric control valve (36) is installed at the connection position of the ultrafiltration membrane tubes (33) and the upper circulation tube (34).