CN106593580B

CN106593580B - Engine exhaust gas circulation purification noise elimination system

Info

Publication number: CN106593580B
Application number: CN201611259406.7A
Authority: CN
Inventors: 王明哲; 苏继龙
Original assignee: Sanhe Keda Science & Technology Co ltd
Current assignee: Sanhe Keda Science & Technology Co ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2022-07-08
Anticipated expiration: 2036-12-30
Also published as: CN106593580A

Abstract

The invention discloses an engine waste gas circulating, purifying and silencing system which comprises a body, wherein a cavity is formed in the body, the body is vertically placed, an air inlet pipe is arranged on the side wall of the body, an exhaust pipe is arranged at the top of the body, and a first partition plate and a second partition plate are connected to the inner wall of the cavity; the first partition board is positioned above the air inlet and is horizontally arranged, the second partition board is connected to the tail end of the first partition board and is vertically arranged, a plurality of vertically arranged electrode plates are arranged between one side of the second partition board close to the air inlet and the inner wall of the cavity, a plurality of vertically arranged dust collecting plates are arranged between one side of the second partition board, which is not the air inlet, and the inner wall of the cavity, and a horizontally arranged discharge electrode is arranged above the first partition board on the inner wall of the cavity; an electrostatic generator is arranged outside the body and is respectively connected with the electrode plate, the dust collecting plate and the discharge electrode. The invention has simple structure and convenient operation, and greatly improves the dust removal and purification effects while ensuring the silencing effect.

Description

Engine exhaust gas circulation purification noise elimination system

Technical Field

The invention relates to exhaust gas treatment equipment for an internal combustion engine, in particular to an engine exhaust gas circulating and silencing system.

Background

An internal combustion engine is a power machine, and is a heat engine that directly converts heat energy emitted by burning fuel in the machine into power. The internal combustion engine in a broad sense includes not only a reciprocating piston type internal combustion engine, a rotary piston type engine and a free piston type engine but also a gas turbine of a rotary vane type, a jet engine and the like, but the internal combustion engine is generally referred to as a piston type internal combustion engine. Piston internal combustion engines are the most common of the reciprocating piston types. The piston type internal combustion engine mixes fuel and air and burns in a cylinder of the engine, and the released heat energy enables the cylinder to generate high-temperature and high-pressure fuel gas. The gas expands to drive the piston to do work, and then the mechanical work is output through a crank-link mechanism or other mechanisms to drive the driven machinery to work. However, the internal combustion engine generally uses petroleum fuel, and the exhaust gas contains a high content of harmful gases, and the internal combustion engine emits a large amount of noise during operation and then is transmitted to the surrounding environment along with the exhaust gas from the exhaust line. Both of the above problems are problems that must be solved by present internal combustion engines.

Chinese patent CN101298846 discloses an exhaust device integrating sound attenuation and gas purification, but because the gas purification adopts wet filtration and dry filtration to purify the exhaust gas, the traditional muffler structure is retained, and the exhaust gas is treated by a two-layer filtering system. However, the device has a small application range due to the liquid filled in the device, and the purification effect is not obvious due to the contact time of the waste gas and the traditional purification liquid and the traditional dry filtering device, and the purification liquid in the discharger can splash along with the vibration of the discharger, so that the service life of the purifier can be influenced by the purification liquid.

Disclosure of Invention

In order to solve the problems of poor waste gas purification effect, short service life of the system and the like of the conventional waste gas purification and noise elimination system for the internal combustion engine, the invention provides a circulating purification and noise elimination system for the waste gas of the engine, which has the following specific scheme:

an engine waste gas circulating, purifying and silencing system comprises a body which is formed with a cavity inside and is vertically placed, wherein the side wall of the body is provided with an air inlet communicated with the cavity, the air inlet is connected with an air inlet pipe, the top of the body is provided with an air outlet communicated with the cavity, the air outlet is connected with an exhaust pipe, and the inner wall of the cavity is connected with a first partition plate and a second partition plate; the first baffle plate is positioned above the air inlet and is horizontally arranged, and the length of the first baffle plate is smaller than the inner diameter of the cavity; the second partition plate is connected to the tail end of the first partition plate and is vertically arranged, and the length of the second partition plate is smaller than the distance between the first partition plate and the bottom of the cavity; a plurality of vertically arranged electrode plates are arranged between one side of the second partition plate close to the air inlet and the inner wall of the cavity, a plurality of vertically arranged dust collecting plates are arranged between one side of the second partition plate, which is not the air inlet, and the inner wall of the cavity, and horizontally arranged discharge electrodes are arranged on the inner wall of the cavity above the first partition plate; an electrostatic generator is arranged outside the body and is respectively connected with the electrode plate, the dust collecting plate and the discharge electrode; the air inlet pipe extends from the air inlet into the cavity to the second partition plate and is fixedly connected with the second partition plate, and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the air inlet pipe; the exhaust pipe extends a certain distance into the cavity from the exhaust port, the bottom of the cavity is sealed, and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the exhaust pipe.

Furthermore, the electrostatic generator is connected with the electrode plate and the dust collecting plate through connecting components, each connecting component consists of two connecting plates, a plurality of electrode teeth which are evenly spaced are arranged on the connecting plates, electrode rods are connected to the electrode teeth, and the electrode rods are connected with the electrode plate or the dust collecting plate; the electrode teeth of the two connecting plates are arranged in a staggered mode; and the two connecting plates of the connecting assembly are respectively connected with the anode and the cathode of the electrostatic generator.

Furthermore, the electrode plates are bent in two directions perpendicular to the electrode plates at the same intervals, so that a plurality of uniformly spaced folds are formed on the electrode plates.

Further, the discharge electrode include with cavity inner wall connection's retainer plate with set up in be 180 relative arrangement and the positive electrode group and the negative pole group that the structure corresponds in the retainer plate, positive electrode group and negative pole group include the main part, one side of main part is equipped with a plurality of even spaced discharge teeth, the opposite side of main part is equipped with connects the end, connect the end and wear out the retainer plate with the lateral wall of body respectively with the positive pole and the negative pole of electrostatic generator are connected, positive electrode group with the discharge teeth staggered arrangement of negative pole group.

Further, the bottom of the body is provided with an oil accumulation groove corresponding to the bottom of the electrode plate.

Furthermore, a plurality of baffles are arranged on the inner wall of the cavity between the discharge electrode and the bottom of the exhaust pipe, the baffles are divided into a through hole area and a closed area, and a plurality of through holes are formed in the through hole area.

Furthermore, the closed areas on the baffles adjacent to the discharge electrodes correspond to the positions of the dust collecting plates, and the positions of the closed areas on the two adjacent baffles are staggered.

Further, the area of the through hole region is not less than 1/2 of the baffle area, the area of the through hole region is not greater than 5/6 of the baffle area.

Furthermore, still set up on the lateral wall of body and be used for the clearance accumulate the oil groove with the access hole of dust collecting plate.

The invention has the beneficial effects that: the invention provides an engine exhaust gas circulating purification and noise elimination system, wherein engine exhaust gas sequentially passes through an electrode plate, a dust collecting plate and a discharge electrode which are connected with an electrostatic generator, so that part of dust particles in the exhaust gas are charged and then separated from the gas and flow into an oil accumulation groove along a curved plate, then the rest part of dust particles in the exhaust gas are adsorbed on the dust collecting plate, and finally the last part of dust particles and part of organic matters in the exhaust gas are carbonized and eliminated after high-voltage discharge and finally discharged into the atmosphere; the waste gas containing dust particles is purified in the whole system, and the aim of silencing is fulfilled by changing the sound transmission direction and a plurality of assemblies with fine through holes in the body; the invention has simple structure and convenient operation, and greatly improves the dust removal and purification effects while ensuring the silencing effect; and set up on the body and be used for clearing up the oil accumulation groove with the access hole of dust collecting plate, it is simple to maintain, makes the life of system improve widely.

Drawings

Fig. 1, a perspective view of the structure of the present invention,

fig. 2, a cross-sectional view of embodiment 1 of the present invention,

FIG. 3 is a schematic view of a connecting plate structure according to embodiment 1 of the present invention,

FIG. 4 is a front view of an electrode plate structure according to embodiment 1 of the present invention,

FIG. 5 is a plan view showing the structure of an electrode plate according to example 1 of the present invention,

FIG. 6 is a front view of a discharge electrode structure according to embodiment 1 of the present invention,

FIG. 7 is a top view of a discharge electrode structure according to example 1 of the present invention,

fig. 8, a cross-sectional view of embodiment 2 of the present invention,

fig. 9 is a schematic view of the structure of a baffle plate in embodiment 2 of the present invention.

Reference numbers and designations: 1. the electrode plate comprises a body, 101, an air inlet pipe, 102, an air outlet pipe, 103, a first partition plate, 104, a second partition plate, 105, a discharge electrode, 1051, a fixed ring, 1052, a positive electrode group, 1053, a negative electrode group, 106, an electrode plate, 107, a dust collecting plate, 108, a baffle plate, 1081, a through hole area, 1082, a closed area, 2, a connecting plate, 201, electrode teeth, 202 and an electrode rod.

Detailed Description

To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 and 2, the invention provides an engine exhaust gas circulation purification and noise elimination system, which comprises a body 1, wherein a cavity is formed inside the body 1 and is vertically placed, an air inlet communicated with the cavity is formed in the side wall of the body 1, an air inlet pipe 101 is connected to the air inlet, an air outlet communicated with the cavity is formed in the top of the body 1, an exhaust pipe 102 is connected to the air outlet, and a first partition plate 103 and a second partition plate 104 are welded on the inner wall of the cavity; the first baffle plate 103 is horizontally arranged above the air inlet, and the length of the first baffle plate 103 is smaller than the inner diameter of the cavity; the second partition 104 is vertically arranged and connected with the end of the first partition 103, and the length of the second partition 104 is smaller than the distance between the first partition 103 and the bottom of the cavity. A plurality of vertically arranged electrode plates 106 are arranged between one side of the second clapboard 104 close to the air inlet and the inner wall of the cavity, a plurality of vertically arranged dust collecting plates 107 are arranged between one side of the second clapboard 104 not close to the air inlet and the inner wall of the cavity, and a horizontally arranged discharge electrode 105 is arranged above the first clapboard 103 on the inner wall of the cavity. An electrostatic generator is arranged outside the body 1 and is respectively connected with the electrode plate 106, the dust collecting plate 107 and the discharge electrode 105; the air inlet pipe 101 extends from the air inlet to the second partition plate 104 in the cavity and is fixedly connected with the second partition plate 104, and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the air inlet pipe 101; the exhaust pipe 102 extends a distance from the exhaust port to the inside of the cavity, the bottom of the exhaust pipe is sealed, and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the exhaust pipe 102. The side wall of the body 1 is also provided with an access hole for cleaning the oil accumulation groove and the dust collecting plate.

As shown in fig. 3, the electrostatic generator is connected with the electrode plate 106 and the dust collecting plate 107 by the connecting plates 2, the connecting plates 2 are in a group of two, the connecting plates 2 are provided with a plurality of electrode teeth 201 which are evenly spaced, the electrode teeth 201 are connected with electrode rods 202, and the electrode rods 202 are inserted into the electrode plate 106 and the dust collecting plate 107 to connect the electrostatic generator with the electrode plate 106 or the dust collecting plate 107; the electrode teeth 201 of one of the connecting plates 2 in the same group correspond to the gaps between the electrode teeth of the other connecting plate, and the two connecting plates 2 in the same group are respectively connected with the anode and the cathode of the electrostatic generator. The electrode plates and the dust collecting plates at two ends of the second partition plate 104 are connected with the electrostatic generator by the structure, and the adjacent electrode plates and the dust collecting plates are respectively provided with different charges by the structure of the electrode teeth 201, so that dust particles in the waste gas are separated from the gas after being charged and then adsorbed on the dust collecting plates.

As shown in fig. 4 and 5, the electrode plates 106 are bent in two directions perpendicular to the electrode plates at the same interval, so that a plurality of uniformly spaced folds are formed on the electrode plates 106, the contact area with the exhaust gas is increased, and the charging effect of the electrode plates on dust particles in the exhaust gas is improved.

As shown in fig. 6 and 7, the discharge electrode 105 includes a fixing ring 1051 connected with the inner wall of the cavity, and a positive electrode group 1052 and a negative electrode group 1053 disposed in the fixing ring 1051 in 180 ° opposite arrangement, the positive electrode group and the negative electrode group include a body, one side of the body is provided with a plurality of discharge teeth evenly spaced, the other side of the body is provided with a connection terminal, the connection terminal penetrates through the side walls of the fixing ring 1051 and the body 1 to be connected with the positive electrode and the negative electrode of the electrostatic generator, and the discharge teeth of the positive electrode group and the negative electrode group are arranged in a staggered manner.

Example 2

Referring to fig. 8 to 9, embodiment 2 differs from embodiment 1 in that: a plurality of baffles are arranged on the inner wall of the cavity between the discharge electrode and the bottom of the exhaust pipe, the baffles are divided into a through hole area and a closed area, the area of the through hole area is 2/3 of the area of the baffles, and a plurality of through holes are formed in the through hole area. The closed areas on the baffles adjacent to the discharge electrodes correspond to the positions of the dust collecting plates, and the positions of the closed areas on two adjacent baffles are staggered.

Because the waste gas passes through the baffle plates with the mutually staggered closed areas before being discharged, the through hole area is provided with the overlapped part, so that the waste gas passing through the small hole is not directly changed in direction and is discharged from the exhaust pipe, the negative pressure born by the gas before being discharged is greatly reduced, the silencing effect is ensured, and the working efficiency of the generator is not influenced.

It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that the equivalent changes and modifications made in the light of the above disclosure and the appended claims are all within the scope of the present invention.

Claims

1. The utility model provides an engine exhaust gas circulation purifies noise elimination system, has cavity and vertical body (1) of placing including the inside shaping, its characterized in that: an air inlet communicated with the cavity is formed in the side wall of the body (1), the air inlet is connected with an air inlet pipe (101), an air outlet communicated with the cavity is formed in the top of the body (1), the air outlet is connected with an exhaust pipe (102), and a first partition plate (103) and a second partition plate (104) are connected to the inner wall of the cavity; the first baffle plate (103) is positioned above the air inlet and is horizontally arranged, and the length of the first baffle plate (103) is smaller than the inner diameter of the cavity; the second partition plate (104) is connected to the tail end of the first partition plate (103) and is vertically arranged, and the length of the second partition plate (104) is smaller than the distance between the first partition plate (103) and the bottom of the cavity; a plurality of vertically arranged electrode plates (106) are arranged between one side of the second partition plate (104) close to the air inlet and the inner wall of the cavity, a plurality of vertically arranged dust collecting plates (107) are arranged between one side of the second partition plate (104) not close to the air inlet and the inner wall of the cavity, and horizontally arranged discharge electrodes (105) are arranged on the inner wall of the cavity above the first partition plate (103); an electrostatic generator is arranged outside the body (1), and the electrostatic generator is respectively connected with the electrode plate (106), the dust collecting plate (107) and the discharge electrode (105);

the air inlet pipe (101) extends from the air inlet to the second partition plate in the cavity and is fixedly connected with the second partition plate (104), and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the air inlet pipe (101); the exhaust pipe (102) extends into the cavity from the exhaust port and is sealed at the bottom, and a plurality of through holes are formed in the part, located in the cavity, of the pipe wall of the exhaust pipe (102);

the electrostatic generator is connected with the electrode plate (106) and the dust collecting plate (107) through connecting components, each connecting component consists of two connecting plates (2), a plurality of electrode teeth (201) which are uniformly spaced are arranged on the connecting plates (2), electrode rods (202) are connected onto the electrode teeth (201), and the electrode rods (202) are connected with the electrode plate (106) or the dust collecting plate (107); the electrode teeth of the two connecting plates are arranged in a staggered mode; the two connecting plates (2) of the connecting assembly are respectively connected with the positive pole and the negative pole of the electrostatic generator;

the electrode plates (106) are bent in two directions perpendicular to the electrode plates at the same intervals, so that a plurality of uniformly spaced folds are formed on the electrode plates (106).

2. The engine exhaust gas circulation purifying and silencing system of claim 1, wherein: the discharge electrode (105) include with retainer plate (1051) that cavity inner wall is connected with set up in be 180 relative arrangement and positive group (1052) and negative pole group (1053) that the structure corresponds in the retainer plate, positive group (1052) and negative pole group (1053) include the main part, one side of main part is equipped with a plurality of evenly spaced discharge teeth, the opposite side of main part is equipped with connects terminal, connect terminal wear out retainer plate (1051) with the lateral wall of body (1) respectively with the positive pole and the negative pole of electrostatic generator are connected, positive group (1052) with the discharge tooth staggered arrangement of negative pole group (1053).

3. The engine exhaust gas circulation purifying and silencing system of claim 1, wherein: an oil accumulation groove is formed in the cavity of the body (1) and corresponds to the bottom of the electrode plate (106).

4. The engine exhaust gas circulation purifying and silencing system of claim 1, wherein: the inner wall of the cavity is located between the discharge electrode (105) and the bottom of the exhaust pipe (102) and is provided with a plurality of baffles (108), the baffles (108) are divided into a through hole area (1081) and a closed area (1082), and the through hole area (1081) is provided with a plurality of through holes.

5. The engine exhaust gas circulation purifying and silencing system of claim 4, wherein: the closed areas on the baffle plates (108) adjacent to the discharge electrodes (105) correspond to the positions of the dust collecting plates (107), and the closed areas on the two adjacent baffle plates are staggered.

6. The engine exhaust gas circulation purifying and silencing system of claim 4, wherein: the area of the through hole region is no less than 1/2 of the baffle area, and the area of the through hole region is no greater than 5/6 of the baffle area.

7. The engine exhaust gas circulation purifying and silencing system of claim 3, wherein: the side wall of the body (1) is also provided with an access hole for cleaning the oil accumulation groove and the dust collecting plate (107).