CN214065845U

CN214065845U - Water coal formula gas heater washing unit

Info

Publication number: CN214065845U
Application number: CN202023269721.2U
Authority: CN
Inventors: 徐国平; 赵阳阳; 王一蔚; 周胜达
Original assignee: Hailan Zhiyun Technology Co ltd
Current assignee: Hailan Zhiyun Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-27
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a water coal type flue gas heat exchanger washing device, which comprises a washing main pipe which is vertically arranged, wherein a plurality of groups of washing branch pipes are horizontally arranged at two sides of the washing main pipe, and a plurality of groups of spraying pipes are horizontally arranged on the washing branch pipes; the spraying pipe is L-shaped, two side edges of the L-shaped spraying pipe are mutually vertical, and one side edge of the spraying pipe close to the washing branch pipe is vertical to the washing branch pipe and extends upwards along the axial direction of the washing main pipe; the flushing branch pipe is communicated with the flushing main pipe, and the spraying pipe is communicated with the flushing branch pipe. Cleaning water is injected into the washing mother pipe, one side edge of the L-shaped spray pipe extends into the space between the heat exchange pipes of the heat exchanger, and the front surface of the heat exchange pipe is cleaned; another side of shower is on a parallel with the windward side of heat exchanger, can clean the side of heat exchange pipe, the utility model discloses simple structure can strengthen the cleaning range and the cleaning performance to the heat exchanger under the prerequisite of dismouting device not relapse.

Description

Water coal formula gas heater washing unit

Technical Field

The utility model relates to a fluorine plastic heat exchanger is with washing unit, especially a water coal formula gas heater washing unit.

Background

Heat exchangers are devices that transfer part of the heat of a hot fluid to a cold fluid and are widely used in industrial production. After long-time use, a large amount of dust and dirt can be deposited on the heat exchange tubes in the heat exchanger, and the performance of the heat exchanger is influenced. The principle of the water-coal type flue gas heat exchanger is that water is used as a cooling medium to recover heat of flue gas. The fluoroplastic is a heat transfer medium commonly used for heat exchangers, has the advantages of smooth surface, difficulty in scaling, large heat transfer area and the like, and still needs to be cleaned regularly. In the prior art, an external spray water pipe is adopted to locally clean a heat exchange pipe, so that a large amount of water resources are wasted.

Chinese patent No. CN205436423U discloses an online spray cleaning device for heat exchangers, wherein a main spray pipe is provided with a plurality of auxiliary spray pipes, and the auxiliary spray pipes are provided with spray pipes which are inserted between heat exchange pipes, so as to clean the surfaces of the heat exchange pipes without disassembling and assembling the heat exchange pipes. However, because the interval between the heat exchange tubes of the heat exchanger is small, the washing surface of the washing water after being ejected from the spray holes is small, and particularly the washing effect of the windward side is poor, so that the surface of the heat exchanger is not uniformly cleaned.

In view of the above-mentioned prior art, there is a need for further improvements in heat exchanger flushing devices.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a washing unit of water coal formula gas heater can clear up the windward side of heat transfer pipe, makes the heat exchanger obtain abundant even washing.

In order to achieve the purpose of the utility model, the washing device of the water-coal type flue gas heat exchanger comprises a washing main pipe which is vertically arranged, wherein a plurality of groups of washing branch pipes are horizontally arranged at two sides of the washing main pipe, and a plurality of groups of spraying pipes are horizontally arranged on the washing branch pipes;

the spraying pipe is L-shaped, two side edges of the L-shaped spraying pipe are perpendicular to each other, one side edge of the spraying pipe close to the flushing branch pipe is perpendicular to the flushing branch pipe and extends upwards along the axial direction of the flushing main pipe, and spraying holes are formed in the two side edges of the spraying pipe;

the flushing branch pipe is communicated with the flushing main pipe, and the spraying pipe is communicated with the flushing branch pipe.

Furthermore, a water filling port is arranged at the top of the washing main pipe, and a drain plug is arranged at the bottom of the washing main pipe.

Furthermore, the shower is the fluoroplastics material, washes the branch pipe of washing of female pipe both sides and is the symmetry setting.

Furthermore, a connector extends from the side edge of the flushing branch pipe, one side edge of the spraying pipe close to the flushing branch pipe is communicated with the connector, and a hoop is arranged at the position where the connector is communicated with the spraying pipe.

Further, the hoop is made of duplex stainless steel.

Furthermore, a reducing joint is arranged on the washing main pipe, and the diameter of the washing main pipe at the upper end of the reducing joint is larger than that of the washing main pipe at the lower end of the reducing joint.

Furthermore, a water through opening is formed in the lower end of the washing main pipe, a short metal pipe is connected to the outer end of the water through opening, and a valve is arranged on the short metal pipe.

The utility model arranges a plurality of rows of L-shaped spray pipes on the washing branch pipe, one side edge of the L-shaped spray pipe extends into the space between the heat exchange pipes of the heat exchanger, and the front surface of the heat exchange pipe is cleaned; the other side edge of the spray pipe is parallel to the windward side of the heat exchanger, and the side surface of the heat exchange pipe can be cleaned; meanwhile, in the embodiment, the lower end of the washing main pipe is provided with the water through port, and the dead angle of the heat exchanger can be cleaned by externally connecting a hose at the water through port. The utility model discloses simple structure can strengthen cleaning range and cleaning performance to the heat exchanger under the prerequisite of not relapseing dismouting device.

Drawings

FIG. 1 is a schematic structural view of a water-coal type flue gas heat exchanger flushing device of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the connection of the shower pipe and the flushing branch pipe;

FIG. 4 is a left side view of the washing device of the water-coal type flue gas heat exchanger of the present invention;

fig. 5 is a schematic connection diagram of the valve at the lower end of the main flushing pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 4, the washing device for the water-coal type flue gas heat exchanger comprises a washing main pipe 1 which is vertically arranged, wherein a water injection port 6 is arranged at the top of the washing main pipe 1, and a drain plug 7 is arranged at the bottom of the washing main pipe 1; a plurality of groups of flushing branch pipes 2 are horizontally arranged on two sides of the flushing main pipe 1, and a plurality of groups of spraying pipes 3 are horizontally arranged on the flushing branch pipes 2; shower 3 is the L type, and two side mutually perpendicular of L type shower 3, shower 3 are close to a side perpendicular to that washes branch pipe 2 and upwards extend along the axial that washes the person in charge of washing branch pipe 2, be provided with the hole that sprays on two sides of shower 3. The flushing branch pipe 2 is communicated with the flushing main pipe 1, and the spraying pipe 3 is communicated with the flushing branch pipe 2. The female pipe 1 that washes among this embodiment and wash branch pipe 2 and be metal pipeline, shower 3 is the fluoroplastics material and has seted up the hole that sprays on the surface. The washing branch pipes 2 are welded on the left side and the right side of the washing main pipe 1, and the washing branch pipes 2 on the two sides of the washing main pipe 1 are symmetrically arranged. The shower 3 can be directly bent into an L shape, or the corner of the shower 3 is fixed by a corrosion-resistant material, so that the shower 3 is prevented from being corroded by industrial water or fluid in a heat exchanger after being used for a long time. As shown in fig. 3, a connector 4 extends from a side edge of the flushing branch pipe 2, a side edge of the spraying pipe 3 close to the flushing branch pipe 2 is communicated with the connector 4, an anchor ear 5 is arranged at a position where the connector 4 is communicated with the spraying pipe 3, the anchor ear 5 is used for fastening the spraying pipe 3 on the flushing branch pipe 2, and the anchor ear 5 is preferably made of duplex stainless steel, so that corrosion to the anchor ear 5 is reduced, and the stability of the flushing device is enhanced.

Arranging the spraying pipe 3 on the air outlet side of the fluoroplastic heat exchanger through an external support, inserting one side edge of the spraying pipe 3 far away from the washing branch pipe 2 into the heat exchange pipe of the heat exchanger, and enabling the other side edge of the spraying pipe 3 to be parallel to the windward side of the heat exchanger and extend upwards; the washing water is injected from the water injection port 6 at the top of the washing main pipe 1, the washing main pipe 1 flows to the washing branch pipe 2, the washing water is sprayed out through the spraying holes in the L-shaped spraying pipes 3, and meanwhile, the wind-facing surfaces between the heat exchange pipes and the heat exchange pipes are washed.

Preferably, the flushing main pipe 1 is provided with a reducer union 8 for adjusting the flow rate of water for the upper and lower sections of the flushing main pipe 1. The washing water is injected from the top and respectively flows into each washing branch pipe 29, in order to ensure that the water quantity of each washing branch pipe 29 is sufficient, the diameter of the washing main pipe 1 is gradually increased from bottom to top, two ends of the reducing joint 8 are respectively connected to the positions of two sections of the washing main pipe 1 with different diameters, and the diameter of the washing main pipe 1 at the upper end of the reducing joint 8 is larger than the diameter of the washing main pipe 1 at the lower end of the reducing joint 8.

The utility model discloses can improve the efficiency of wasing the heat exchange tube effectively, under the prerequisite that need not install washing unit repeatedly, wash between the heat exchange tube and the windward side of heat exchanger. However, after long-time use, dead corners of accumulated dust and scale are difficult to avoid in the heat exchanger, and the heat exchanger is inconvenient to clean. In order to wash the dead corner, as shown in fig. 4 and 5, a water through port 9 is provided at the lower end of the main washing pipe 1, a short metal pipe 10 is connected to the outer end of the water through port 9, and a valve 11 is provided on the short metal pipe 10. During daily cleaning, the valve 11 is in a closed state; when the heat exchange tube has the maintenance demand, the outside bath hose of exit linkage at metal nozzle stub 10 opens valve 11, and the washing communicates to washing the hose with the water, and the staff can wash the dead angle of wasing to ground.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a water coal formula gas heater washing unit which characterized in that: the device comprises a washing main pipe which is vertically arranged, wherein a plurality of groups of washing branch pipes are horizontally arranged on two sides of the washing main pipe, and a plurality of groups of spraying pipes are horizontally arranged on the washing branch pipes;

2. The water-coal type flue gas heat exchanger washing device as claimed in claim 1, wherein: the top of washing female pipe is provided with the water filling port, and the bottom of washing female pipe is provided with the drain plug.

3. The water-coal type flue gas heat exchanger washing device as claimed in claim 1, wherein: the shower is the fluoroplastics material, washes the branch pipe that washes female pipe both sides and is the symmetry setting.

4. A water-coal-type flue gas heat exchanger washing device as claimed in claim 3, characterized in that: the side edge of the flushing branch pipe extends out of the interface, one side edge of the spraying pipe close to the flushing branch pipe is communicated with the interface, and a hoop is arranged at the position where the interface is communicated with the spraying pipe.

5. The washing device of the water-coal type flue gas heat exchanger as claimed in claim 4, wherein: the hoop is made of duplex stainless steel.

6. The washing device of the water-coal type flue gas heat exchanger as claimed in any one of claims 1 to 5, wherein: the washing main pipe is provided with a reducing joint, and the diameter of the washing main pipe at the upper end of the reducing joint is larger than that of the washing main pipe at the lower end of the reducing joint.

7. The water-coal type flue gas heat exchanger washing device as claimed in claim 1, wherein: the lower end of the washing main pipe is provided with a water through opening, the outer end of the water through opening is connected with a short metal pipe, and a valve is arranged on the short metal pipe.