CN211234110U

CN211234110U - Washing effect system of triple-effect evaporator

Info

Publication number: CN211234110U
Application number: CN201922088752.9U
Authority: CN
Inventors: 陈刚; 段永梁; 徐为; 李方林; 孙忠亮; 张俊杰; 马正才
Original assignee: Huanggang Chenming Pulp Paper Co ltd
Current assignee: Huanggang Chenming Pulp Paper Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-11
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a triple effect evaporation ware wash and imitate system, belong to chemical industry equipment and wash technical field, the problem of the easy scale deposit of III effect evaporation ware in the triple effect evaporation ware has been solved, this triple effect evaporation ware wash imitate the system should include I effect evaporation ware, II effect evaporation ware and III effect evaporation ware, through fifth pipeline intercommunication between I effect evaporation ware and the II effect evaporation ware, II effect evaporation ware and III effect evaporation ware pass through sixth pipeline intercommunication, still including washing effect pump and rather than the washing effect pipeline that is linked together, wash and be equipped with the third pipeline between effect pipeline and the III effect evaporation ware entry A end, wash and be equipped with the fourth pipeline between effect pipeline and the I effect evaporation ware export C end, I effect evaporation ware, II effect evaporation ware and III effect evaporation ware one side all are equipped with circulation pipeline, and be equipped with the circulating pump in the circulation pipeline. The utility model discloses can wash the salt dirt in the three evaporimeter, ensure the normal use of triple effect evaporimeter.

Description

Washing effect system of triple-effect evaporator

Technical Field

The utility model relates to a chemical industry equipment washs technical field, especially relates to a washing of triple effect evaporimeter imitates system.

Background

In the use process of the triple-effect evaporator, the evaporator is large, the capacity is large, a lot of materials are stored in each single-effect evaporator, when the concentration of black liquor reaches a certain value, scaling is easy to form in the heat exchange tube of the evaporator, scaling components are mainly salt substances, particularly, more materials are stored in the triple-effect evaporator, the fact that the triple-effect evaporator is easy to scale is found in the production process, the triple-effect evaporator is particularly easy to stop working due to the fact that the triple-effect evaporator is subjected to scaling, and the use of the triple-effect evaporator is seriously influenced if the triple-effect evaporator is not cleaned. Through research, loose salt scale can be washed by weak black liquor or water, but the current triple-effect evaporator has no special washing effect system for cleaning the salt scale.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the washing of a triple effect evaporimeter of proposition imitates the system, can wash the salt dirt in the triple evaporator, ensures the normal use of triple effect evaporimeter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a system is imitated to washing of triple effect evaporimeter, includes I effect evaporimeter, II effect evaporimeters and III effect evaporimeters, through fifth pipeline intercommunication between I effect evaporimeter and II effect evaporimeters, II effect evaporimeters and III effect evaporimeters pass through sixth pipeline intercommunication, still including washing the effect pump and rather than the washing effect pipeline that is linked together, it is equipped with the third pipeline to wash between effect pipeline and the III effect evaporimeter entry A end, it is equipped with the fourth pipeline to wash between effect pipeline and the I effect evaporimeter export C end, I effect evaporimeter, II effect evaporimeters and III effect evaporimeters one side all are equipped with circulation pipeline, and are equipped with the circulating pump in the circulation pipeline.

Furthermore, a bypass pipeline is arranged between the end A of the inlet of the III-effect evaporator and the sixth pipeline, a tenth valve is arranged between one end of the bypass pipeline and the end A of the inlet of the III-effect evaporator, a sixth valve is arranged at the end, close to the end B of the outlet of the III-effect evaporator, of the sixth pipeline, and a first valve is arranged between the sixth valve and the tenth valve through the bypass pipeline.

Furthermore, a first pipeline connected with the dilute black liquor tank is arranged at the end B of the outlet of the III-effect evaporator, and an eighth valve is arranged in the first pipeline.

Furthermore, a third valve is arranged in the fourth pipeline, and a seventh valve is arranged in the third pipeline.

Furthermore, a second pipeline is arranged between the washing effect pipeline and the end D of the inlet of the second effect evaporator, a fifth valve is arranged in the second pipeline, and a fourth valve is arranged between the third valve and the seventh valve in the washing effect pipeline.

Further, wash and imitate the pipeline end and be equipped with filtering mechanism, filtering mechanism includes rose box and two filter tanks, the rose box top with wash and imitate the pipeline intercommunication, the rose box bottom is connected with the outlet pipe, two the filter tank slidable mounting is at the upper and lower both ends of rose box.

Furthermore, four sliding chutes are symmetrically formed in two sides of the inner wall of the filter box, sliding strips matched with the sliding chutes are arranged on two sides of each filter tank, a square hole is formed in the bottom end of each filter tank, and a filter screen is arranged in each square hole.

The utility model has the advantages that:

1. through washing the setting of imitating pipeline, washing the pump, can wash the liquid of imitating and wash salt dirt in introducing three evaporimeter, wash the liquid of imitating simultaneously and circulate through circulating pump and circulating line and wash in three evaporimeter, the cleaning performance is better.

2. Through setting up bypass pipeline and first pipeline at III effect evaporators and II effect evaporators, can realize not influencing under the condition of follow-up evaporimeter work, wash III effect evaporators alone, set up the second pipeline simultaneously, can realize alone the washing of II effects and I effects.

3. Through set up filtering mechanism washing effect pipeline end, filtering mechanism's filter-tank can filter out the scale deposit in washing the effect liquid, and two filter-tanks can the relative slip simultaneously, realize washing the whole journey of effect liquid and filter.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the filtering mechanism of the present invention.

In the figure: the device comprises a 1-I effect evaporator, a 2-II effect evaporator, a 3-III effect evaporator, a 4-wash effect pump, a 5-wash effect pipeline, a 6-filtering mechanism, a 7-first pipeline, a 8-bypass pipeline, a 9-first valve, a 10-circulation pipeline, a 11-second pipeline, a 12-second valve, a 13-third valve, a 14-fourth valve, a 15-fifth valve, a 16-sixth valve, a 17-circulation pump, a 18-third pipeline, a 19-seventh valve, a 20-eighth valve, a 21-ninth valve, a 22-tenth valve, a 23-fourth pipeline, a 24-filtering box, a 25-filtering tank, a 26-filtering net, a 27-fifth pipeline and a 28-sixth pipeline.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-2, the washing system of the triple-effect evaporator of the present invention comprises a first-effect evaporator 1, a second-effect evaporator 2 and a third-effect evaporator 3, wherein the first-effect evaporator 1 is communicated with the second-effect evaporator 2 through a fifth pipeline 27, the second-effect evaporator 2 is communicated with the third-effect evaporator 3 through a sixth pipeline 28, the washing system further comprises a washing pump 4 and a washing pipeline 5 communicated with the washing pump, a third pipeline 18 is arranged between the washing pipeline 5 and the end a of the inlet a of the third-effect evaporator 3, a fourth pipeline 23 is arranged between the washing pipeline 5 and the end C of the outlet of the first-effect evaporator 1, the washing liquid enters the evaporation system through the third pipeline and flows out from the fourth pipeline 23 to realize the washing function, a circulation pipeline 10 is arranged on one side of the first-effect evaporator 1, the second-effect evaporator 2 and the third-effect evaporator 3, a circulation pump 17 is arranged in the circulation pipeline 10, the circulation pump 17 can realize the circulation cleaning of the washing liquid, the cleaning effect is enhanced.

Preferably, a bypass pipeline 8 is arranged between the end A of the inlet of the III-effect evaporator 3 and the sixth pipeline 28, and can realize the independent cleaning of the III-effect evaporator 3, and the normal work of the subsequent evaporator is not influenced, a tenth valve 22 is arranged between one end of the bypass pipeline 8 and the end A of the inlet of the III-effect evaporator 3, a sixth valve 16 is arranged at the end B of the sixth pipeline 28 close to the outlet of the III-effect evaporator 3, a first valve 9 is arranged in the bypass pipeline 8, when the III-effect evaporator 3 is cleaned independently, closing the tenth valve 22 and the sixth valve 16, opening the first valve 9, directly feeding the semi-concentrated black liquor into the II-effect evaporator 2 through the bypass pipeline 8, arranging a first pipeline 7 connected with the dilute black liquor tank at the end B of the outlet of the III-effect evaporator 3, directly flowing the washing liquor in the III-effect evaporator 3 into the dilute black liquor tank through the first pipeline 7, and an eighth valve 20 is provided in the first pipe 7, the eighth valve 20 being opened only when the iii-effect evaporator 3 is cleaned alone.

Preferably, a third valve 13 is arranged in the fourth pipeline 23, a seventh valve 19 is arranged in the third pipeline 18, the seventh valve 19 controls the washing liquid to enter the third-effect evaporator 3, the third valve 13 controls the washing liquid to flow out of the first-effect evaporator 1, a second pipeline 11 is arranged between the washing pipeline 5 and the D end of the inlet of the second-effect evaporator 2 and between the washing pipeline 5 and the D end of the inlet of the second-effect evaporator 2, the second pipeline can realize the washing of the second-effect evaporator 2 and the first-effect evaporator 1 by the washing liquid, a ninth valve 21 is arranged between the third pipeline 18 and the washing pump 4, the ninth valve 21 can control the whole washing system to be closed, a second valve 12 is arranged at the C end of the outlet of the first-effect evaporator 1, the second valve 12 is closed only when the first-effect evaporator 1 and the second-effect evaporator 2 are washed, a fifth valve 15 is arranged in the second pipeline 11, and a fourth valve 14 is arranged between the third valve 13 and the seventh valve 19 in.

Preferably, wash and imitate 5 ends of pipeline and be equipped with filtering mechanism 6, filtering mechanism 6 can filter out the scale deposit in the lotion, filtering mechanism 6 includes rose box 24 and two rose tanks 25, the pipe connection is imitated with washing to the rose box 24 top, rose box 24 bottom is connected with the outlet pipe, two rose tanks 25 slidable mounting are at the upper and lower both ends of rose box 24, four spouts have been seted up to rose box 24 inboard symmetry, every rose tank 25 both sides all are equipped with the draw runner with spout looks adaptation, the square hole has all been seted up to every rose tank 25 bottom, square hole department is provided with filter screen 26, when a rose tank 25 was filled with, can release, filter through another rose tank 25.

The utility model discloses a work of washing of triple effect evaporimeter system is divided into three kinds of behavior.

1. When the III-effect evaporator 3 is cleaned independently, the ninth valve 21 is opened, the sixth valve 16 and the tenth valve 22 are closed, the first valve 9 is opened, semi-thick black liquor enters the II-effect evaporator 2 through the bypass pipeline 8, the fifth valve 15, the fourth valve 14 and the third valve 13 are closed, the seventh valve 19 is opened, washing liquor enters the III-effect evaporator 3 through the third pipeline 18, the washing liquor is circularly cleaned in the evaporator through the circulating pump 17 and the circulating pipeline 8, the eighth valve 20 is opened, the cleaned washing liquor flows into the thin black liquor tank through the first pipeline 7 and is discharged, online cleaning of the III-effect evaporator is achieved, and subsequent evaporation is not affected.

2. When the first-effect evaporator 1 and the second-effect evaporator 2 are cleaned, the ninth valve 21, the fifth valve 15 and the third valve 13 are opened, the seventh valve 19, the sixth valve 16 and the second valve 12 are closed, the washing effect liquid enters the second-effect evaporator 2 and the first-effect evaporator 1 from the second pipeline 11, the washing effect liquid is circularly cleaned in the evaporator through the circulating pump 17 and the circulating pipeline 8 and then is discharged through the fourth pipeline 23, and the filtering of the washing effect liquid is realized through the filtering mechanism 6.

3. The I-effect evaporator 1, the II-effect evaporator 2 and the III-effect evaporator 3 are integrally cleaned, the ninth valve 21, the sixth valve 16 and the third valve 13 are opened, all the other valves are closed, the washing liquid enters from the third pipeline 18, the III-effect evaporator 3, the II-effect evaporator 2 and the I-effect evaporator 1 are cleaned, then the washing liquid is discharged from the fourth pipeline 23, and the filtering of the washing liquid is realized through the filtering mechanism 6.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A washing effect system of a triple-effect evaporator comprises a first-effect evaporator (1), a second-effect evaporator (2) and a third-effect evaporator (3), the first effect evaporator (1) is communicated with the second effect evaporator (2) through a fifth pipeline (27), the II-effect evaporator (2) is communicated with the III-effect evaporator (3) through a sixth pipeline (28), it is characterized by also comprising a washing effect pump (4) and a washing effect pipeline (5) communicated with the washing effect pump, a third pipeline (18) is arranged between the washing effect pipeline (5) and the A end of the inlet of the III effect evaporator (3), a fourth pipeline (23) is arranged between the washing effect pipeline (5) and the end C of the outlet of the I-effect evaporator (1), circulation pipelines (10) are arranged on one sides of the I-effect evaporator (1), the II-effect evaporator (2) and the III-effect evaporator (3), and a circulation pump (17) is arranged in each circulation pipeline (10).

2. The washing system of the triple-effect evaporator, according to claim 1, characterized in that a bypass pipeline (8) is arranged between the end A of the inlet of the triple-effect evaporator (3) and the sixth pipeline (28), a tenth valve (22) is arranged between one end of the bypass pipeline (8) and the end A of the inlet of the triple-effect evaporator (3), a sixth valve (16) is arranged at the end B of the sixth pipeline (28) close to the outlet of the triple-effect evaporator (3), and a first valve (9) is arranged between the sixth valve (16) and the tenth valve (22) in the bypass pipeline (8).

3. The washing system of the triple-effect evaporator, as recited in claim 2, characterized in that the B end of the outlet of the triple-effect evaporator (3) is provided with a first pipeline (7) connected with a weak black liquor tank, and the end of the first pipeline (7) is provided with an eighth valve (20).

4. The washing system of a triple-effect evaporator according to claim 1, wherein a third valve (13) is disposed in the fourth pipeline (23), and a seventh valve (19) is disposed in the third pipeline (18).

5. The washing system of the triple-effect evaporator as claimed in claim 4, wherein a second pipeline (11) is arranged between the washing pipeline (5) and the D end of the inlet of the second-effect evaporator (2), a fifth valve (15) is arranged in the second pipeline (11), and a fourth valve (14) is arranged between the third valve (13) and the seventh valve (19) of the washing pipeline (5).

6. The washing system of the triple-effect evaporator, as set forth in claim 1, characterized in that the end of the washing pipeline (5) is provided with a filtering mechanism (6), the filtering mechanism (6) comprises a filtering box (24) and two filtering tanks (25), the top end of the filtering box (24) is communicated with the washing pipeline (5), the bottom end of the filtering box (24) is connected with a water outlet pipe, and the two filtering tanks (25) are slidably mounted at the upper and lower ends of the filtering box (24).

7. The washing system of the triple-effect evaporator according to claim 6, wherein four sliding grooves are symmetrically formed in two sides of the inner wall of the filter box (24), sliding strips matched with the sliding grooves are arranged on two sides of each filter tank (25), a square hole is formed in the bottom end of each filter tank (25), and a filter screen (26) is arranged in each square hole.