CN218542367U

CN218542367U - Tail gas cooling and filtering water tank of explosion-proof diesel engine

Info

Publication number: CN218542367U
Application number: CN202222429236.XU
Authority: CN
Inventors: 周利; 马冶; 邢恩明; 曲业伟; 周健
Original assignee: Tai'an Ferrit Machinery Co ltd
Current assignee: Tai'an Ferrit Machinery Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-02-28
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses an explosion-proof diesel engine tail gas cooling filtration water tank, the power distribution box comprises a box body, be equipped with backplate on the inner chamber in the box, backplate below cavity separates into the intake precooling chamber that the bottom communicates each other by right to left side in proper order through two inner chamber baffles on the inner chamber, first cooling filter chamber and second cooling filter chamber, inner chamber tail gas pipeline gets into by the intake precooling chamber, go upward and downwarping to first cooling filter chamber bottom, the backplate upside is equipped with inside and outside two-layer arc water blocking plate on the inner chamber, through-hole and first cooling filter chamber on the backplate are linked together on the inner chamber through inner chamber at inner arc water blocking plate middle part, the box left side is equipped with the flue of giving vent to anger and gives vent to anger the fire-retardant fence. The filtering water tank can effectively prevent the cooling water from flowing back from the water tank through the air inlet flange and the water choking phenomenon at the air outlet of the water tank, and has better tail gas cooling and filtering and purifying effects.

Description

Tail gas cooling and filtering water tank of explosion-proof diesel engine

Technical Field

The utility model belongs to the technical field of explosion-proof diesel engine tail gas purification treatment facility, concretely relates to explosion-proof diesel engine tail gas cooling filter water tank.

Background

The explosion-proof diesel engine for coal mine is a diesel engine used in underground mine roadways containing methane or combustible dust, has explosion-proof performance, does not ignite environmental gas and dust when working in explosive environment, meets the requirement of special environmental regulation on the index of exhaust gas, and is usually used as an explosion-proof power device of various fixed or mobile equipment under a coal mine. According to the safety requirement, the tail gas of the explosion-proof diesel engine is mainly purified by adopting a cooling filter water tank, the tail gas filter water tank of the existing explosion-proof diesel engine often has the problems that the cooling effect is poor, cooling water is easy to flow back through an air inlet flange to cause damage to an engine turbine, water choking is easy to occur at an air outlet of the water tank and the like, and the cooling filter effect and the stability of equipment operation are influenced.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, this utility model provides a can effectively prevent that the cooling water from flowing back and the tail gas cooling filtration water tank that the gas outlet chocks water. In order to realize the technical purpose, the utility model discloses the technical scheme who takes as follows:

an explosion-proof diesel engine tail gas cooling and filtering water tank comprises a tank body, wherein an inner cavity upper protection plate is arranged in the tank body along the horizontal direction, a cavity below the inner cavity upper protection plate is sequentially divided into an air inlet pre-cooling cavity, a first cooling and filtering cavity and a second cooling and filtering cavity from right to left, the bottoms of the air inlet pre-cooling cavity, the first cooling and filtering cavity and the second cooling and filtering cavity are communicated with each other through two vertically arranged inner cavity partition plates, and the upper parts of the first cooling and filtering cavity and the second cooling and filtering cavity are communicated with each other; an air inlet flange is arranged on the side wall of the air inlet pre-cooling cavity, an inner cavity tail gas pipeline is connected to the interior of the box body from the air inlet flange, and the inner cavity tail gas pipeline enters the air inlet pre-cooling cavity, then ascends and bends downwards to the bottom of the first cooling filter cavity; the inner cavity upper guard plate is provided with an arc inner water blocking plate and an arc outer water blocking plate, two ends of the arc inner water blocking plate and two ends of the arc outer water blocking plate are respectively connected with the front side wall and the rear side wall of the box body, and a cavity in the middle of the arc inner water blocking plate is communicated with the first cooling filter cavity through a through hole in the inner cavity upper guard plate; the inner cavity upper guard plate is provided with a plurality of through holes in the middle of the arc-shaped inner water blocking plate, and the right side of the arc-shaped inner water blocking plate and the left side of the arc-shaped outer water blocking plate are respectively provided with a plurality of exhaust holes; the left side of the box body is provided with an air outlet flue, the air inlet end of the air outlet flue is positioned above the upper protection plate of the inner cavity, and the air outlet end is provided with an air outlet fire-retardant fence.

Preferably, the upper part of the side wall of the air inlet precooling cavity is provided with a water filling port, the lower part of the side wall of the air inlet precooling cavity is provided with a water discharging port, and the tank body is internally provided with a liquid level meter.

Preferably, the edges of the bottoms of the arc-shaped inner water blocking plate and the arc-shaped outer water blocking plate are provided with water drainage notches, and the edges of the inner cavity upper guard plate above the air inlet precooling cavity are provided with water drainage notches.

Preferably, a water blocking cavity is arranged outside the air inlet end of the air outlet flue and communicated with the inner cavity of the box body.

Furthermore, two layers of horizontal water-blocking plates are arranged in the water-blocking cavity and are positioned below the air inlet end of the air outlet flue.

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

1. the structural design of the tail gas pipeline of the inner cavity can effectively prevent the problem that the cooling water flows back from the water tank through the air inlet flange to cause the damage of an engine turbine and even an engine;

2. the design of the two layers of arc-shaped water blocking plates can more effectively block cooling water carried by tail gas and make the cooling water flow back to the water tank, so that the phenomenon that water is choked at an air outlet of the water tank can be effectively reduced;

3. tail gas flows in each cavity in the box body, so that the cooling and the filtering are more sufficient, the tail gas discharge temperature and the impurity content can be effectively reduced, and the environment is well protected.

Drawings

FIG. 1: the utility model discloses an overall structure schematic diagram.

FIG. 2: the utility model discloses sectional structure and theory of operation sketch map.

In each figure: 1. a box body; 2. an inner cavity upper guard plate; 3. an inner cavity partition plate; 4. an air inlet pre-cooling cavity; 5. a first cooling filter chamber; 6. a second cooling filter chamber; 7. an air inlet flange; 8. an inner cavity tail gas pipeline; 9. an arc inner water blocking plate; 10. an arc-shaped outer water blocking plate; 11. an exhaust hole; 12. an air outlet flue; 13. air outlet fire retardant fence; 14. a water filling port; 15. a water discharge outlet; 16. a liquid level meter; 17. a water blocking cavity; 18. horizontal water-blocking board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not used to limit the scope of the present invention, and the relative relationship between the terms may be changed or adjusted without substantial technical changes. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an explosion-proof diesel engine tail gas cooling filtration water tank, refer to figure 1 and show, including box 1, be equipped with backplate 2 on the inner chamber along the horizontal direction in the box 1, backplate 2 separates into box 1 inner chamber upper and lower two parts, 2 below cavitys of backplate are separated in proper order for the bottom is the intake precooling chamber 4 that communicates each other by right to left through the inner chamber baffle 3 of two vertical settings on the inner chamber, first cooling filtration chamber 5 and second cooling filtration chamber 6, first

cooling filtration chamber

5 and 6 upper portions of second cooling filtration chamber are linked together, bottom intercommunication is in order to guarantee the unanimity of each intracavity cooling water level height between each cavity, first

cooling filtration chamber

5 and 6 upper portions of second cooling filtration chamber are linked together and are in order to make the tail gas that gets into second cooling filtration chamber 6 by the bottom after the cooling filtration, can flow back to first cooling filtration chamber 5. Be equipped with air inlet flange 7 on the 4 lateral walls of air inlet precooling chamber, be connected with inner chamber tail gas pipeline 8 to box 1 internal connection by air inlet flange 7, inner chamber tail gas pipeline 8 goes upward and the downwarping is to 5 bottoms in first cooling filter chamber after getting into air inlet precooling chamber 4. Be equipped with arc internal water board 9 and arc outer water board 10 that blocks on backplate 2 on the inner chamber, the both ends of arc internal water board 9 and arc outer water board 10 are connected with the front and back lateral wall of box 1, form an arc passageway from right to left between arc internal water board 9 and the arc outer water board 10, the cavity at the middle part of arc internal water board 9 is linked together with first cooling filtration chamber 6 through the through-hole on backplate 2 on the inner chamber, the right side of arc internal water board 9 and the left side of arc outer water board 10 are equipped with a plurality of exhaust holes 11 respectively. An air outlet flue 12 is arranged on the left side of the box body 1, the air inlet end of the air outlet flue 12 is positioned above the inner cavity upper guard plate 2, and an air outlet end is provided with an air outlet fire-retardant fence 13. In a preferred embodiment, a water filling port 14 is arranged at the upper part of the side wall of the air inlet pre-cooling cavity 4, a water discharging port 15 is arranged at the lower part of the side wall, the position of the water filling port 14 is higher than that of the air inlet flange 7, and the position of the water discharging port 15 is lower than that of the air inlet flange 7; a liquid level meter 16 is arranged in the box body 1, specifically, the liquid level meter 16 can be arranged at the top of the box body 1 and faces downwards, and the liquid level meter 16 is connected with an electric protection device of the diesel engine.

The working principle is as follows: referring to fig. 2, before the diesel engine runs, cooling water is filled from a water filling port 14 to a preset water level, the air inlet pre-cooling cavity 4, the first cooling and filtering cavity 5 and the second cooling and filtering cavity 6 are communicated with each other at the bottoms to form a communicating device, the water levels in the cavities are consistent, and when the cooling water level measured by the liquid level meter 16 is lower than a set value, the diesel engine is powered off to be protected and shut down, and the filling of the cooling water is prompted. The diesel engine blast pipe is connected with air inlet flange 7, tail gas gets into inner chamber tail gas pipeline 8 through air inlet flange 7, the initial section of inner chamber tail gas pipeline 8 soaks in the cooling water in precooling chamber 4, the tail gas is by the cooling water primary cooling in the precooling chamber 4 when flowing through this section, back edge pipeline goes upward and the downwarping discharges to 5 bottoms of first cooling filter chamber, inner chamber tail gas pipeline 8 goes upward and the structure of downwarping can effectively prevent that the cooling water from flowing back to the air inlet. After the tail gas is discharged from the tail gas pipeline 8 of the inner cavity, one part of the tail gas is filtered and cooled by cooling water in the first cooling and filtering cavity 5 and then ascends to the upper protection plate 2 of the inner cavity, and the other part of the tail gas enters the second cooling and filtering cavity 6 from the bottom, is filtered and cooled by the cooling water in the second cooling and filtering cavity 6 and then ascends and returns to the first cooling and filtering cavity 5 from the communication part at the upper part. The tail gas enters the cavity in the middle of the arc-shaped inner water blocking plate 9 through the through hole on the inner cavity upper guard plate 2, enters the channel between the arc-shaped inner water blocking plate 9 and the arc-shaped outer water blocking plate 10 through the exhaust hole 11 on the right side of the arc-shaped inner water blocking plate 9, and is discharged through the exhaust hole 11 on the left side of the arc-shaped outer water blocking plate 10, and due to the effect of the internal and external pressure difference of the box body 1, the tail gas enters from the air inlet end of the air outlet flue 12, descends to the air outlet along the air outlet flue 12, and finally is discharged out of the water box through the air outlet fire-retardant fence 13. When tail gas flows through the arc-shaped inner water blocking plate 9 and the arc-shaped outer water blocking plate 10, part of cooling water carried in the tail gas is easy to attach to the water blocking plates due to reciprocating backflow, so that the content of water in the tail gas during discharge can be effectively reduced, and the problem of water choking at an exhaust port is avoided. The whole circulation flow process realizes the reduction of the temperature of the tail gas, the temperature is about 600 ℃ from the inlet temperature to the exhaust box body, the temperature is not more than 70 ℃, meanwhile, a large amount of smoke dust particles in the tail gas of the diesel engine are effectively filtered and blocked, and meanwhile, most of toxic and harmful gas is absorbed by cooling water, so that the exhausted gas is more environment-friendly, open fire in the tail gas is avoided, the safety is ensured to the maximum extent, and the application of the diesel engine in the flammable and explosive environment is improved.

In a preferred embodiment, the bottom corners of the arc-shaped inner water blocking plate 9 and the arc-shaped outer water blocking plate 10 are provided with water drainage notches, and the corners of the inner cavity upper protection plate 2 above the air inlet pre-cooling cavity 4 are provided with water drainage notches. The cooling water blocked by the two arc-shaped water blocking plates flows back to the air inlet pre-cooling cavity 4 from the drainage notch at the corner of the inner cavity upper protective plate 2, so that accumulated water is prevented from being formed above the inner cavity upper protective plate 2, and the water blocking effect is prevented from being influenced.

In order to further improve the effect of blocking water of the exhaust gas, in a preferred embodiment, a water blocking cavity 17 is provided outside the air inlet end of the air outlet flue 12, and the water blocking cavity 17 is communicated with the inner cavity of the box body 1. Two layers of horizontal water-blocking plates 18 are arranged in the water-blocking cavity 17, and the horizontal water-blocking plates 18 are positioned below the air inlet end of the air outlet flue 12. The tail gas discharged by the arc-shaped outer water-blocking plate 10 flows upwards into the water-blocking cavity 17, flows through the horizontal water-blocking plate 18 and upwards flows to the air inlet end of the air outlet flue 12, a plurality of exhaust holes can be arranged on the horizontal water-blocking plate 18 or an exhaust gap is left between the edge of the horizontal water-blocking plate 18 and the inner wall of the water-blocking cavity 17, so that the cooling water contained in the tail gas is attached to the horizontal water-blocking plate 18 when the tail gas flows through,

to sum up, this utility model provides an explosion-proof diesel engine tail gas cooling crosses water tank, effectively solved current cooling and crossed water tank cooling effect not good, the cooling water easily flows back and easily takes place the gas vent and chock the water scheduling problem, has very high use value and use meaning, can popularize and apply in a large number.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof diesel engine tail gas cooling filtration water tank, includes box (1), its characterized in that: an inner cavity upper protection plate (2) is arranged in the box body (1) along the horizontal direction, a cavity below the inner cavity upper protection plate (2) is sequentially divided into an air inlet pre-cooling cavity (4), a first cooling and filtering cavity (5) and a second cooling and filtering cavity (6) from right to left through two vertically arranged inner cavity partition plates (3), the bottoms of the air inlet pre-cooling cavity, the first cooling and filtering cavity and the second cooling and filtering cavity are communicated with each other, and the upper parts of the first cooling and filtering cavity (5) and the second cooling and filtering cavity (6) are communicated with each other; an air inlet flange (7) is arranged on the side wall of the air inlet pre-cooling cavity (4), an inner cavity tail gas pipeline (8) is connected from the air inlet flange (7) to the interior of the box body (1), and the inner cavity tail gas pipeline (8) enters the air inlet pre-cooling cavity (4), then ascends and bends downwards to the bottom of the first cooling and filtering cavity (5); an arc-shaped inner water blocking plate (9) and an arc-shaped outer water blocking plate (10) are arranged on the inner cavity upper protection plate (2), two ends of the arc-shaped inner water blocking plate (9) and two ends of the arc-shaped outer water blocking plate (10) are connected with the front side wall and the rear side wall of the box body (1), and a cavity in the middle of the arc-shaped inner water blocking plate (9) is communicated with the first cooling and filtering cavity (5) through a through hole in the inner cavity upper protection plate (2); a plurality of exhaust holes (11) are respectively formed in the right side of the arc-shaped inner water blocking plate (9) and the left side of the arc-shaped outer water blocking plate (10); the box (1) left side is equipped with out gas flue (12), the inlet end of giving vent to anger flue (12) is located backplate (2) top on the inner chamber, and the end of giving vent to anger is equipped with gives vent to anger back-fire relief fence (13).

2. The tail gas cooling and filtering water tank of the explosion-proof diesel engine as claimed in claim 1, characterized in that: the upper part of the side wall of the air inlet pre-cooling cavity (4) is provided with a water filling port (14), the lower part of the side wall of the air inlet pre-cooling cavity is provided with a water discharging port (15), and a liquid level meter (16) is arranged in the box body (1).

3. The explosion-proof diesel engine exhaust cooling filter water tank of claim 1, characterized in that: the arc-shaped inner water blocking plate (9) and the arc-shaped outer water blocking plate (10) are provided with drainage notches at the bottom corners, and the inner cavity upper guard plate (2) is provided with the drainage notches at the corners above the air inlet pre-cooling cavity (4).

4. The explosion-proof diesel engine exhaust cooling filter water tank of claim 1, characterized in that: a water blocking cavity (17) is arranged outside the air inlet end of the air outlet flue (12), and the water blocking cavity (17) is communicated with the inner cavity of the box body (1).

5. The tail gas cooling and filtering water tank of the explosion-proof diesel engine as claimed in claim 4, characterized in that: two layers of horizontal water-blocking plates (18) are arranged in the water-blocking cavity (17), and the horizontal water-blocking plates (18) are positioned below the air inlet end of the air outlet flue (12).