Car tail gas purifying device

An exhaust gas purification device and vehicle technology, which is applied in the direction of exhaust devices, noise reduction devices, exhaust treatment, etc., can solve problems such as poor exhaust emission, poor purification effect, and reducing agent pollution, so as to improve fuel economy and improve purification Efficiency, the effect of prolonging the contact time

Inactive Publication Date: 2016-11-23
桐城市宇洁机动车尾气检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the car works at low temperature for a long time, the three-way catalytic converter cannot be started, and the soot from the engine exhaust pipe will adhere to the surface of the catalyst, making it impossible to contact with CO and HC compounds. After a long time, the pores of the carrier will be blocked. affect its conversion efficiency
In addition, the exhaust emission is not smooth, and the power of the engine is difficult to exert, which is also the reason why many cars cannot run at high speed.
[0005] The tail gas of the existing tail gas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to Figure 1~4 , a vehicle exhaust purification device, comprising a purification injector, a purification chamber and a purification tank 27 that provides purification substances for the purification chamber. The engine exhaust pipe can be divided into three sections according to the direction in which the exhaust gas is discharged. The second section is installed in the middle of the exhaust pipe, the output end of the purifying injector is connected with the first section of the engine exhaust pipe, the output end is connected with the purification chamber, the output end of the purification chamber is connected with the third section of the engine exhaust pipe, and the purification tank 27 is connected with the exhaust pipe of the engine. The adsorption chamber 2 of the purification injector is connected to provide exhaust gas reducing agent and air for the purification chamber. The exhaust gas is sprayed into the purification chamber by the purification inject...

Embodiment 2

[0042] refer to Figure 5 , the clean room is divided into the first clean chamber 15, the second clean chamber 17 and the third clean chamber 9 by the first porous partition 12 and the second porous partition 13, and the outlet of the air inlet passage 10 is located at the first clean chamber In the second purification chamber 17, the entrance of the air outlet passage 11 is located in the first purification chamber 15, and the first purification chamber 15 communicates with the third purification chamber 9 through the second inner chamber passage 14, and the third purification chamber 9 communicates with the third purification chamber 9. The second purification chamber 17 communicates with the first inner cavity passage 16, and the high-temperature exhaust gas enters the second purification chamber 17 from the intake passage 10 and mixes and burns with oxygen-enriched air to form a back pressure, and then most of the NO in the exhaust gas 2 It is reduced by the reducing agen...

Embodiment 3

[0044] refer to Figure 6 , the present invention can also divide the clean chamber into the first clean chamber 15, the second clean chamber 17, the third clean chamber by the first porous partition 12, the second porous partition 13 and the third porous partition 31. Purify chamber 9 and the 4th purify chamber 29, the outlet of air inlet passage 10 is positioned at the second purify chamber 17, the entrance of air outlet passage 11 is positioned at the 3rd purify chamber 9, the 2nd purify chamber 17 and the 4th purify chamber The clean chamber 29 communicates with the first clean chamber 16, the fourth clean chamber 29 communicates with the first clean chamber 15 through the second clean chamber 14, and the first clean chamber 15 communicates with the third clean chamber 9 through the second clean chamber. The three-chamber channel 30 is connected, and the high-temperature exhaust gas enters the second purification chamber 17 from the intake channel 10 and is mixed with oxyg...

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Abstract

The invention discloses a car tail gas purifying device, and belongs to the field of automotive exhaust emission reduction. The car tail gas purifying device comprises a purifying ejector, a purifying room and a purifying tank for providing purifying matter for the purifying room. The purifying tank communicates with an adsorption cavity of the purifying ejector. The input end of the purifying ejector is connected with an engine exhaust pipe. The output end of the purifying ejector is connected with a gas inlet channel of the purifying room. The interior of the purifying room is divided into a plurality of purifying chambers through separation plates. The purifying chambers communicate through inner cavity channels. Tail gas enters the purifying room through the gas inlet channel, and the tail gas is exhausted out of a gas outlet channel after circularly flowing in all the purifying chambers to be purified. The car tail gas purifying device has the beneficial effects that zero emission of harmful mater of tail gas is achieved, engine power is further improved, combustion efficiency and fuel economy are improved, and cost is low.

Description

technical field [0001] The invention belongs to the field of motor vehicle tail gas emission reduction, and in particular relates to a vehicle tail gas purification device. Background technique [0002] The three-way catalytic converter is a filter device shaped like "honeycomb coal". It is installed after the exhaust manifold of the motor vehicle engine. The three-way catalytic converter does not have catalytic ability at room temperature, and its catalyst must be heated to a certain temperature before it can be oxidized or reduced. capacity, usually the reaction temperature of the three-way catalytic converter is 300-400°C, and the normal working temperature is generally 400-800°C. When the temperature exceeds 850-1000°C, the catalyst in the inner coating is likely to fall off and the carrier is broken. [0003] The catalyst is very sensitive to sulfur, lead, phosphorus, zinc and other elements. Sulfur and lead come from gasoline, while phosphorus and zinc come from lubri...

Claims

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Application Information

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IPC IPC(8): F01N3/28
CPCF01N3/28F01N2610/1406F01N2610/1453F01N2610/146F01N2610/148Y02A50/20
Inventor 胡雪林
Owner 桐城市宇洁机动车尾气检测有限公司
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