CN218454776U

CN218454776U - Anti-reflux device for washing tank of explosion-proof diesel engine

Info

Publication number: CN218454776U
Application number: CN202222893169.7U
Authority: CN
Inventors: 李俊庆; 戴伟川; 张宏财; 白伟杰; 童进; 郭健康; 李岩; 周烁; 刘阿娜
Original assignee: Jikai Hebei Electromechanical Technology Co ltd
Current assignee: Jikai Hebei Electromechanical Technology Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-02-07
Anticipated expiration: 2032-11-01

Abstract

The utility model belongs to the technical field of anti-reflux of a diesel engine washing tank, in particular to an anti-reflux device of an anti-explosion diesel engine washing tank, which comprises an anti-explosion diesel engine 6 arranged on a locomotive mounting rack and connected with an air filter element device 5, and the anti-explosion diesel engine 6 connected with a washing tank 3 through a tail gas treatment device 4; inside moisturizing room 9 and the washing room 8 of setting up of washing case 3, 8 inner chambers of washing room set up and deposit water district 11 and floater stopper 10, the utility model provides a pair of explosion-proof diesel engine washing case prevents against current device can prevent effectively that the water of washing case 3 from flowing into the inside diesel engine function that influences of diesel engine against the current, increases the security performance of locomotive, prolongs the life of diesel engine.

Description

Anti-reflux device for washing tank of explosion-proof diesel engine

Technical Field

The utility model belongs to the technical field of diesel engine washing case prevents against current, especially relate to an explosion-proof diesel engine washing case prevents device against current.

Background

With the national emphasis on coal mine safety and the improvement of mechanized mining degree of coal mines, the demand of the explosion-proof diesel engine and the coal mine equipment matched with the explosion-proof diesel engine is greatly increased, the market demand is huge, and the market development prospect is wide. The explosion-proof diesel engine is used as a power source of the locomotive and plays an important role in the locomotive, and the performance of the explosion-proof diesel engine directly determines the overall performance of the locomotive.

The existing water washing tank plays an important role as a part of an explosion-proof system of the whole explosion-proof diesel engine. On one hand, the temperature of the tail gas is reduced to meet the requirement of coal safety certification; on the other hand, harmful substances in the tail gas are eliminated, so that the effects of purifying the tail gas and reducing the environmental pollution are achieved; can also show the getting rid of that reduces flame and spark, avoid igniting easily in the air, explosive gas, cause advantages such as unnecessary accident, but present technique can not effectively prevent that the water reflux of washing case from causing the damage for the diesel engine, and current problem is: (1) When the locomotive climbs a slope and stops, the position of the water washing tank is higher than that of the diesel engine, and water in the water washing tank can enter the diesel engine through the exhaust pipe; (2) When the locomotive load suddenly changes to promote the diesel engine to reversely rotate, the pressure difference is generated between the water washing tank and the interior of the diesel engine, and water reversely flows into the diesel engine. After water enters the diesel engine, great damage is caused to the diesel engine, engine oil is emulsified to promote the abrasion of parts of the diesel engine, noise is generated, vibration is increased, and the service life of the diesel engine is seriously influenced; the diesel engine still works at a high speed after water enters the cylinder because the water cannot be compressed, and the water cannot be compressed during doing work, so that the valve and the connecting rod are bent, the piston is clamped, the middle cylinder is seriously abraded, the crankshaft is bent and the like. The utility model discloses washing case anti-reflux device can prevent effectively that the water of washing case from flowing in the diesel engine is inside to influence the diesel engine function in the contrary, increases the security performance of locomotive, prolongs the life of diesel engine.

SUMMERY OF THE UTILITY MODEL

According to the above technical insufficiency, the utility model aims to provide an explosion-proof diesel engine washing case prevents device against current can prevent effectively that the water of washing case from flowing into the inside diesel engine function that influences of diesel engine against the current, increases the security performance of locomotive, prolongs the life of diesel engine.

In order to realize the technical effects, the utility model discloses a realize through following technical scheme:

the utility model provides an anti-reflux device of an anti-explosion diesel engine washing tank, which comprises an anti-explosion diesel engine arranged on a locomotive mounting rack and connected with an air filter core device, and the anti-explosion diesel engine is connected with the washing tank through a tail gas treatment device; the washing tank is internally provided with a water replenishing chamber and a washing chamber, and the inner cavity of the washing chamber is provided with a water storage area and a floating ball plug.

Furthermore, the air inlet pipe is connected with the inner pipe through an air inlet pipe inlet positioned on the top end surface of the washing chamber, and the middle part of the inner pipe is provided with a water storage area; the inner tube is connected with the inner tube, the inner tube and the inner tube are vertically arranged in the inner cavity of the washing chamber, and the floating ball plug is arranged in the inner tube.

Furthermore, the diameter of the inner cylinder is larger than the diameter of the inner pipe and the diameter of the floating ball plug, the diameter of the floating ball plug is larger than the diameter of the inner pipe, and the diameter of the floating ball plug is 35-75 mm.

Furthermore, the inner cavity of the middle barrel is sleeved at the lower part of the inner barrel, the middle barrel is fixed on the bottom end face of the washing chamber, the outer barrel is sleeved outside the middle barrel, and the bottom end of the outer barrel is oppositely provided with a through hole c.

Further, the inner cylinder, the middle cylinder and the outer cylinder are all hollow cylinders; the distance between the bottom end surface of the inner cylinder and the bottom end surface of the washing chamber is 50-80 mm, the diameter of the middle cylinder is 30-50 mm larger than that of the inner cylinder, and the diameter of the outer cylinder is 30-80 mm larger than that of the middle cylinder.

Furthermore, the bottom end face of the middle cylinder is provided with a floating ball port in a sealing mode, and the diameter of the floating ball port is larger than that of the floating ball plug.

Furthermore, a partition plate is vertically arranged between the water replenishing chamber and the water washing chamber, the periphery of the partition plate is connected with the inner cavity wall of the water washing chamber, the bottom end of the partition plate is transversely provided with a through hole a, and the top end of the partition plate is transversely provided with a through hole b.

Furthermore, the water replenishing chamber is provided with a ball float valve, and the height of the ball float valve is lower than that of the water storage area.

Furthermore, a ball float valve water outlet is formed in the bottom end face of the water replenishing chamber, an exhaust passage is formed in the top end of the inner cavity of the water replenishing chamber, and the exhaust passage is connected with an exhaust pipe through an exhaust fence.

Compared with the prior art, the utility model provides an explosion-proof diesel engine washing case prevents device against current beneficial effect as follows:

1. the utility model relates to an anti-explosion diesel engine washing case anti-reflux device, the effectual problem of having solved the water countercurrent has reduced the fault rate of diesel engine, has prolonged its life, has promoted the wholeness ability of locomotive, has improved production efficiency.

2. The utility model relates to an anti-reflux device of explosion-proof diesel engine washing case has reserved the floater mouth in the bottom of washing room, is used for clearing up and changes the floater stopper, the later maintenance of being convenient for.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of an anti-reflux device of an anti-explosion diesel engine water washing tank of the present invention;

fig. 2 is a front view schematically showing the structure of the water washing tank of fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1-an exhaust pipe; 2, an air inlet pipe; 3-a water washing tank; 4-a tail gas treatment device; 5-an air filter element device; 6-explosion-proof diesel engine; 7-a radiator; 8-a water washing chamber; 9-water replenishing chamber; 10-a floating ball plug; 11-a water storage area; 12-an inner tube; 13-an outer barrel; 14-inner cylinder; 15-middle cylinder; 16-via c; 17-a floating ball port; 18-via a; 19-through hole b; 20-a ball float valve; 21-a ball float valve outlet; 22-an exhaust channel; 23-an exhaust fence; 24-a separator; 25-inlet of air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the embodiment of the application provides an anti-reflux device for an anti-explosion diesel engine water washing tank, which comprises an anti-explosion diesel engine 6 arranged on a locomotive mounting rack and connected with an air filter element 8, a tail gas treatment device 4 connected with a water washing tank 3, wherein when a locomotive starts to operate, the diesel engine sucks air passing through the air filter element 8, diesel oil is subjected to oil pressure increase to be more than 10MPa by an oil injection pump and is sprayed into a cylinder, the diesel oil is mixed with the air and then is subjected to self-ignition combustion immediately, and meanwhile, waste gas is generated and enters the tail gas treatment device 4; tail gas processing apparatus 4 connects washing case 3, and washing case 3 is inside to set up moisturizing room 9 and

washing room

8, and 8 inner chambers of washing room set up and deposit water district 11 and floater stopper 10, and tail gas gets into and cools down through the washing in the washing room 8, and if the water consumption in the washing room 8 is too much, moisturizing room 9 can be for 8 make-up waters in the washing room, and deposit water district 11 and floater stopper 10 and can prevent that the water in the washing room 8 from flowing backwards and return tail gas processing apparatus 4 and explosion-proof diesel engine 6.

The air inlet pipe 2 is connected with the inner pipe 2 through an air inlet pipe inlet 25 positioned on the top end face of the washing chamber 8, a water storage area 11 is arranged in the middle of the inner pipe 12, and the upper end face and the lower end face of the water storage area 11 are both connected with the inner pipe 12; the inner pipe 12 is connected with the inner cylinder 14, the inner pipe 12 and the inner cylinder 14 are vertically arranged in the inner cavity of the washing chamber 8, the floating ball plug 10 is arranged in the inner cylinder 14, and when the water level in the washing chamber rises, the floating ball plug 10 can rise along with the water level.

The diameter of the inner cylinder 14 is larger than that of the inner tube 12 and the diameter of the floating ball plug 10, the diameter of the floating ball plug 10 is larger than that of the inner tube 12, the diameter of the floating ball plug 10 is 35-75 mm, and as the diameter of the floating ball plug 10 is larger than that of the inner tube 12, when the floating ball plug 10 rises to the lower port of the inner tube 2 along with the water level, the floating ball plug 10 can block a connecting port of the inner cylinder 14 and the inner tube 2, so that the water in the water washing chamber 8 is prevented from flowing back to the explosion-proof diesel engine 6 through the air inlet tube 2; the bottom end surface of the middle cylinder 15 is provided with a floating ball port 17 in a sealing way, the diameter of the floating ball port 17 is larger than that of the floating ball plug 10, and the floating ball plug 10 is easy to damage due to long-term contact with high-temperature waste gas, so the floating ball port 17 is arranged in the area of the bottom end surface of the washing chamber 8, which is just opposite to the floating ball plug 10, and the floating ball plug 10 can be replaced by opening the floating ball port 17.

A middle barrel 15 is sleeved outside the bottom end of the inner barrel 14, the middle barrel 15 is fixed on the bottom end surface of the washing chamber 8, an outer barrel 13 is sleeved outside the inner barrel 14 and the middle barrel 15, a through hole c16 is oppositely formed in the bottom end of the outer barrel 13, and the inner barrel 14, the middle barrel 15 and the outer barrel 13 are all hollow cylinders; the distance between the bottom end surface of the inner cylinder 14 and the bottom end surface of the water washing chamber 8 is 50-80 mm, the diameter of the middle cylinder 15 is 30-50 mm larger than that of the inner cylinder 14, and the diameter of the outer cylinder 13 is 30-80 mm larger than that of the middle cylinder 15. After the waste gas enters the water washing chamber 8 through the air inlet pipe 2 and the inner pipe 12, the waste gas firstly enters the inner cylinder 14, enters the middle cylinder 15 through a gap between the bottom end of the inner cylinder 14 and the bottom end surface of the water washing chamber 8, then enters the outer cylinder 13 through an opening on the top end surface of the middle cylinder 15, and finally enters the water washing chamber through an opening on the top end of the outer cylinder 13; a partition plate 24 is vertically arranged between the water replenishing chamber 9 and the water washing chamber 8, the periphery of the partition plate 24 is connected with the inner cavity wall of the water washing chamber 3, a through hole a18 is transversely arranged at the bottom end of the partition plate 24, a through hole b19 is transversely arranged at the top end of the partition plate 24, most of waste gas in the water washing chamber enters the water replenishing chamber 9 through the through hole a18, and a small part of waste gas escapes into the water replenishing chamber 9 through the through hole b 19; the through hole a18 is communicated with the water replenishing chamber 9 and the water washing chamber 8, so that the water levels of the two chambers are in the same horizontal plane, and the through hole b19 can play a role in balancing air pressure between the two chambers.

The water replenishing chamber is provided with a float valve 20, the height of the float valve 20 is lower than that of the water storage area 11, and the float valve 20 can control the water level in the whole washing tank 3 to be not higher than the height of the float valve; a ball float valve water outlet 21 is arranged on the bottom end face of the water replenishing chamber 9, and the ball float valve water outlet 21 can discharge water in the water washing tank 3; an exhaust passage 22 is arranged at the top end of the inner cavity of the water replenishing chamber 9, the exhaust passage 22 is connected with the exhaust pipe 1 through an exhaust fence 23, and waste gas entering the water replenishing chamber 9 from the washing chamber 8 is discharged into the atmosphere through the exhaust passage 22, the exhaust fence 23 and the exhaust pipe 1 in sequence, wherein the exhaust fence 23 plays a role in fire resistance and prevents fire caused by contact with air in the process of discharging the waste gas; tail gas processing apparatus 4 and intake pipe 2 are double-deck pipeline, and outer pipeline is connected to radiator 7, and inlayer pipeline is connected to explosion-proof diesel engine 6, and the liquid in the radiator 7 forms the backward flow with outer pipeline, constantly is the waste gas cooling that explosion-proof diesel engine 6 produced.

When the locomotive climbs a slope and stops, the position of the water washing tank 3 is higher than that of the explosion-proof diesel engine 6 to generate a height difference, so that the liquid level on the right side of the water washing tank 3 rises, the floating ball plug 10 rises along with the rise of the liquid level and blocks a connecting port between the inner cylinder 14 and the inner pipe 12, if a small amount of water passes through the water storage area 11, the water is prevented from entering the explosion-proof diesel engine 6 through the tail gas treatment device 4; when the locomotive load sudden change prompts the explosion-proof diesel engine 6 to rotate reversely, pressure difference is generated inside the water washing tank 3 and the explosion-proof diesel engine 6, the atmospheric pressure inside the water washing tank 3 is greater than the atmospheric pressure inside the explosion-proof diesel engine 6, the floating ball plug 10 rises along with the liquid level in the inner cylinder 14, and the floating ball plug blocks a connecting port between the inner cylinder 14 and the inner pipe 12 to prevent water from reversely flowing into the explosion-proof diesel engine 6. The utility model discloses explosion-proof diesel engine washing case anti-reflux device, the effectual problem of having solved the water countercurrent has reduced the fault rate of diesel engine, has prolonged its life, has promoted the wholeness ability of locomotive, has improved production efficiency.

The above-mentioned embodiments are only described for the preferred embodiments of the present invention, but not for limiting the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the device claims of the present invention.

Claims

1. The utility model provides an explosion-proof diesel engine washing case prevents device against current which characterized in that: the device comprises an explosion-proof diesel engine (6) arranged on a locomotive mounting frame and connected with an air filter element device (5), wherein the explosion-proof diesel engine (6) is connected with a washing tank (3) through a tail gas treatment device (4); the washing tank (3) is internally provided with a water replenishing chamber (9) and a washing chamber (8), and the inner cavity of the washing chamber (8) is provided with a water storage area (11) and a floating ball plug (10).

2. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 1, which is characterized in that: the air inlet pipe (2) is connected with an inner pipe (12) through an air inlet pipe inlet (25) positioned on the top end face of the water washing chamber (8), and a water storage area (11) is arranged in the middle of the inner pipe (12); the inner tube (12) is connected with an inner tube (14), the inner tube (12) and the inner tube (14) are vertically arranged in an inner cavity of the water washing chamber (8), and the inner tube (14) is internally provided with the floating ball plug (10).

3. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 2, characterized in that: the diameter of the inner cylinder (14) is larger than that of the inner tube (12) and that of the floating ball plug (10), the diameter of the floating ball plug (10) is larger than that of the inner tube (12), and the diameter of the floating ball plug (10) is 35-75 mm.

4. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 2, characterized in that: an inner cavity of a middle barrel (15) is sleeved on the lower portion of the inner barrel (14), the middle barrel (15) is fixed to the bottom end face of the water washing chamber (8), an outer barrel (13) is sleeved on the outer portion of the middle barrel (15), and a through hole c (16) is formed in the bottom end of the outer barrel (13) relatively.

5. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 4, characterized in that: the inner cylinder (14), the middle cylinder (15) and the outer cylinder (13) are all hollow cylinders; the distance between the bottom end surface of the inner cylinder (14) and the bottom end surface of the water washing chamber (8) is 50-80 mm, the diameter of the middle cylinder (15) is 30-50 mm larger than that of the inner cylinder (14), and the diameter of the outer cylinder (13) is 30-80 mm larger than that of the middle cylinder (15).

6. The anti-backflow device for the anti-explosion diesel engine water washing tank as claimed in claim 4, characterized in that: the bottom end face of the middle cylinder (15) is provided with a floating ball port (17) in a sealing mode, and the diameter of the floating ball port (17) is larger than that of the floating ball plug (10).

7. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 1, which is characterized in that: moisturizing room (9) with vertically set up baffle (24) between washing room (8), baffle (24) all around with washing case (3) inner chamber wall connection, baffle (24) bottom transversely sets up through-hole a (18), baffle (24) top transversely sets up through-hole b (19).

8. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 1, which is characterized in that: the water replenishing chamber is provided with a float valve (20), and the height of the float valve (20) is lower than that of the water storage area (11).

9. The anti-reflux device for the anti-explosion diesel engine water washing tank as claimed in claim 1, which is characterized in that: the bottom end face of the water replenishing chamber (9) is provided with a ball float valve water outlet (21), the top end of the inner cavity of the water replenishing chamber (9) is provided with an exhaust passage (22), and the exhaust passage (22) is connected with an exhaust pipe (1) through an exhaust fence (23).