CN107876276B

CN107876276B - Primary cooler sprinkler

Info

Publication number: CN107876276B
Application number: CN201711326739.1A
Authority: CN
Inventors: 梁有仪; 于涛; 段有龙
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2017-12-13
Filing date: 2017-12-13
Publication date: 2024-03-19
Anticipated expiration: 2037-12-13
Also published as: CN107876276A

Abstract

The invention relates to a spraying device of a primary cooler, which comprises a spraying pipe, a tar-ammonia water mixture pipeline, a back flushing pipe, a connecting flange cover, a cleaning steam pipeline connected with a steam valve and a cleaning ammonia water pipeline connected with an ammonia water valve; the back flushing pipe is arranged above the spraying pipe, the spraying pipe and the back flushing pipe are connected at the tail part of the spraying pipe, the spraying pipe and the back flushing pipe are arranged inside the primary cooler, and the back flushing pipe outside the primary cooler is connected with the steam sweeping pipeline and the ammonia water sweeping pipeline through the sweeping valve; the back flushing pipe and the spray pipe are supported and fixed through the flange connecting cover. The advantages are that: the tar oil ammonia water spraying pipe can be cleaned under the condition of no shutdown, the shutdown disassembly cleaning is not needed, and the operation is convenient. The back flushing pipe is arranged above the spraying pipe, the work of the spraying pipe and the back flushing pipe is controlled through a valve outside the primary cooler, the cleaning of the blocked spraying pipe can be realized without disassembling the spraying device, and the on-site operation is convenient.

Description

Primary cooler sprinkler

Technical Field

The invention belongs to the field of primary cooler cleaning, and particularly relates to a primary cooler spraying device capable of being conveniently cleaned.

Background

In a coking enterprise, coal gas from a coke oven firstly enters a primary cooler, most of tar gas, most of water vapor and naphthalene in the coal gas are condensed, and a guarantee is provided for a subsequent chemical production recovery section. The condensed tar and naphthalene are attached to the outer wall of the heat exchange tube, so that the heat exchange capacity is reduced, and therefore, an ammonia water spraying device is arranged above each section of heat exchange tube at intervals, ammonia water spraying is carried out regularly, and the outer wall of the heat exchange tube is cleaned. However, because the mixture of tar and ammonia water is used in actual production, the outlet of the ammonia water spraying device is often blocked, the primary cooler is required to be stopped, the ammonia water spraying pipe is detached for cleaning, and the operation is very inconvenient.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the primary cooler spraying device which can clean the tar and ammonia water spraying pipe under the condition of no shutdown, is easy to install and is very convenient to operate.

In order to achieve the above purpose, the present invention is realized by the following technical scheme:

the spraying device of the primary cooler comprises a spraying pipe and a tar ammonia water mixture pipeline, wherein a tar ammonia water valve is connected between the spraying pipe and the tar ammonia water mixture pipeline, and the tar ammonia water valve and the tar ammonia water mixture pipeline are arranged outside the primary cooler;

the device also comprises a back flushing pipe, a connecting flange cover, a sweeping steam pipeline connected with a steam valve and a sweeping ammonia water pipeline connected with an ammonia water valve;

the back flushing pipe is arranged above the spraying pipe, the spraying pipe and the back flushing pipe are connected at the tail part of the spraying pipe, the spraying pipe and the back flushing pipe are arranged inside the primary cooler, and the back flushing pipe outside the primary cooler is connected with the steam sweeping pipeline and the ammonia water sweeping pipeline through the sweeping valve;

the back flushing pipe and the spray pipe are supported and fixed through the flange connecting cover.

The connecting flange cover is in limit connection with the connecting flange of the primary cooler through the locating pin.

The lower part of the spraying pipe is symmetrically and alternately provided with a plurality of spraying small holes or a plurality of anti-blocking spray heads, and the tail part of the spraying pipe is provided with a blocking plate and a supporting ring.

Compared with the prior art, the invention has the beneficial effects that:

the invention can clean the tar ammonia water spraying pipe without shutdown, does not need shutdown, disassembly and cleaning, and is convenient for operation. The back flushing pipe is arranged above the spraying pipe, the work of the spraying pipe and the back flushing pipe is controlled through a valve outside the primary cooler, the cleaning of the blocked spraying pipe can be realized without disassembling the spraying device, and the on-site operation is convenient. When this sprinkler installs, the locating pin is installed in the locating pin hole position that flange and flange lid that the primary cooler corresponds, has avoided taking place the possibility of mistake dress during the installation, can make this sprinkler installation work very convenient.

Drawings

FIG. 1 is a schematic illustration of the process of a primary cooler spray apparatus.

Fig. 2 is a schematic view of a primary cooler spray apparatus.

FIG. 3 is a schematic diagram of a primary cooler spray apparatus.

Fig. 4 is a schematic structural view of the anti-blocking spray head.

Fig. 5 is a schematic view of the connection flange cover.

Fig. 6 is a cross-sectional view taken along line A-A of fig. 5.

In the figure: the primary cooler comprises a primary cooler body 2-a cleaning steam pipeline 3-a steam valve 4-a cleaning ammonia water pipeline 5-an ammonia water valve 6-a tar ammonia water mixture pipeline 7-a tar ammonia water valve 8-a cleaning valve 9-a backwashing pipe 10-a spraying pipe 11-a connecting flange cover 12-a supporting plate 13-a blocking plate 14-a supporting ring 15-a spraying small hole 16-an anti-blocking spray head 17-a positioning pin hole 18-a positioning pin 19-a connecting flange.

Detailed Description

The present invention will be described in detail below with reference to the drawings of the specification, but it should be noted that the practice of the present invention is not limited to the following embodiments.

1-3, a primary cooler spraying device comprises a spraying pipe 10, a tar-ammonia water mixture pipeline 6, a back flushing pipe 9, a connecting flange 19 cover 11, a cleaning steam pipeline 2 connected with a steam valve 3 and a cleaning ammonia water pipeline 4 connected with an ammonia water valve 5; the primary cooler is arranged outside the primary cooler; the back flushing pipe 9 is arranged above the spraying pipe 10, the two are connected at the tail part of the spraying pipe 10, and the spraying pipe 10 and the back flushing pipe 9 are arranged in the primary cooler; a tar ammonia water valve 7 is connected between the spray pipe 10 and the tar ammonia water mixture pipeline 6, and a back flushing pipe 9 outside the primary cooler is connected with the sweeping steam pipeline 2 and the sweeping ammonia water pipeline 4 through a sweeping valve 8; the tar ammonia water valve 7 and the tar ammonia water mixture pipeline 6 are connected outside the primary cooler, and the back flushing pipe 9 and the spraying pipe 10 are supported and fixed through a flange connecting cover.

Referring to fig. 5 and 6, the cover 11 of the connecting flange 19 is in limited connection with the connecting flange 19 of the primary cooler through the positioning pins 18. The connecting flange 19 cover 11 is provided with a locating pin 18 hole 17 at a corresponding position connected with the connecting flange 19, and the locating pin 18 hole 17 is a through hole or a blind hole, so that the spraying device is convenient to install.

2-4, a plurality of spraying small holes 15 or a plurality of anti-blocking spray heads 16 are symmetrically and alternately arranged at the lower part of the spraying pipe 10, a blocking plate 13 and a supporting ring 14 are arranged at the tail part of the spraying pipe 10, and the supporting ring 14 is fixedly overlapped with the primary cooler and is used for supporting the spraying device; the blocking plate 13 can ensure that the liquid in the spraying pipe 10 and the back flushing pipe 9 is sprayed out by the spraying small holes 15 or the anti-blocking spray heads 16. A plurality of supporting plates 12 are fixedly arranged between the spraying pipe 10 and the back flushing pipe 9, so that the strength of the spraying device is enhanced.

When the heat exchange tube inside the primary cooler needs to be cleaned, as shown in fig. 1, the tar-ammonia water valve 7 is opened, the ammonia water valve 5, the steam valve 3 and the cleaning valve 8 are all closed, the tar-ammonia water mixture is sprayed through the spraying small holes 15 or the anti-blocking spray heads 16 on the spraying tube 10, and the outer wall of the heat exchange tube is cleaned. When the detection shows that the spray pressure is increased, the spray small holes 15 or the anti-blocking spray heads 16 are blocked, at the moment, the tar ammonia water valve 7 is closed, the cleaning valve 8 is opened, steam cleaning or ammonia water cleaning is selected according to the process requirements, the corresponding steam valve 3 or ammonia water valve 5 is opened, steam or ammonia water enters the spray pipe 10 through the backwashing pipe 9, and the blocked spray small holes 15 or the anti-blocking spray heads 16 are cleaned.

The invention can clean the tar ammonia water spray pipe 10 without stopping the machine. When the spraying device is installed, the locating pins 18 are installed at the positions of the locating pin 18 holes 17 corresponding to the connecting flange 19 and the connecting flange 19 cover 11 of the primary cooler, so that the possibility of wrong installation during installation is avoided, and the spraying device can be installed very conveniently.

Claims

1. The spraying device of the primary cooler comprises a spraying pipe and a tar ammonia water mixture pipeline, wherein a tar ammonia water valve is connected between the spraying pipe and the tar ammonia water mixture pipeline, and the tar ammonia water valve and the tar ammonia water mixture pipeline are arranged outside the primary cooler;

the device is characterized by further comprising a back flushing pipe, a connecting flange cover, a cleaning steam pipeline connected with a steam valve and a cleaning ammonia water pipeline connected with an ammonia water valve;

2. The spraying device of the primary cooler according to claim 1, wherein the connecting flange cover is in limiting connection with the connecting flange of the primary cooler through positioning pins.

3. The spraying device of the primary cooler according to claim 1, wherein a plurality of spraying small holes or a plurality of anti-blocking spray heads are symmetrically and alternately arranged at the lower part of the spraying pipe, and a blocking plate and a supporting ring are arranged at the tail part of the spraying pipe.