CN202212741U - Diesel engine selective catalytic reduction (SCR) catalyst encapsulation device - Google Patents

Abstract

A diesel engine SCR catalytic converter packaging device belongs to the technical field of diesel engine catalytic converter packaging devices. It includes a frame, on which a push rod, a compression mold and a shell round mold are sequentially fixed in parallel, the head of the push rod is provided with a pressure sensor for detecting the encapsulation force of the carrier, and the push rod on one side is The frame is provided with a displacement sensor for detecting the displacement of the carrier, and the signals of the pressure sensor and the displacement sensor are connected to an external automatic control system. The above-mentioned diesel engine SCR catalytic converter packaging device has a simple structure and a reasonable design. The pressure sensor and the displacement sensor are used to monitor the carrier packaging process in real time, and the automatic control system is used for real-time control, which improves the packaging efficiency and improves the packaging efficiency. As a result, the scrap rate is reduced.

Description

A diesel engine SCR catalytic converter packaging device

technical field

The utility model belongs to the technical field of packaging devices for diesel engine catalytic converters, in particular to a packaging device for diesel engine SCR catalytic converters.

Background technique

At present, SCR technology has become a mainstream technology for heavy-duty diesel engines to meet the National IV emission standards to reduce _NOx emissions. Among them, the SCR catalytic converter is composed of a carrier, a liner and a casing. Problems such as shedding and damage of the catalytic converter carrier during use seriously affect the use of the catalytic converter, and the main reason for the premature failure of some catalytic converters is the packaging design of the catalytic converter carrier.

At present, the packaging technologies used commercially mainly include: clamshell type, press-in type, bundled type and spinning type. Press-in packaging allows the acceptance of carriers of any shape, and has high reliability for both standard and thin-walled carrier packages, making it the most widely used packaging technology.

Press-in packaging needs to consider the impact of packaging force on the carrier. If the encapsulation force is too large, the carrier will easily break during the encapsulation process; if the encapsulation force is too small, the carrier will easily fall off during the use of the catalyst.

Utility model content

Aiming at the problems existing in the prior art, the purpose of the utility model is to design and provide a technical solution of a diesel engine SCR catalytic converter packaging device. The device conducts on-line real-time monitoring of the encapsulation during the encapsulation process to ensure the encapsulation requirements.

The packaging device for a diesel engine SCR catalytic converter includes a frame, which is characterized in that a push rod, a compression mold and a shell round mold are sequentially fixed in parallel on the frame, and the head of the push rod is provided with a For the pressure sensor for detecting the encapsulation force of the carrier, the frame on one side of the push rod is provided with a displacement sensor for detecting the displacement of the carrier, and the signals of the pressure sensor and the displacement sensor are connected to an external automatic control system.

The above-mentioned packaging device for SCR catalytic converter of diesel engine is characterized in that the push rod is fixed on the frame through the push rod support frame provided at the tail.

The said packaging device for SCR catalytic converter of diesel engine is characterized in that said compression mold is a cylindrical body with taper.

The above-mentioned packaging device for SCR catalytic converter of diesel engine is characterized in that the compression mold is fixed on the machine frame through the compression mold frame provided.

The above described packaging device for SCR catalytic converter of diesel engine is characterized in that the full circle mold of the housing is fixed on the machine frame through the full circle mold frame of the housing.

The packaging device for the SCR catalytic converter of a diesel engine is characterized in that the automatic control system is connected with a control push rod, a compression mold and a shell full-circle mold.

The above-mentioned diesel engine SCR catalytic converter packaging device has a simple structure and a reasonable design. The pressure sensor and the displacement sensor are used to monitor the carrier packaging process in real time, and the automatic control system is used for real-time control, which improves the packaging efficiency and improves the packaging efficiency. As a result, the scrap rate is reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the control schematic diagram of the utility model.

In the figure: 1-shell round mold; 2-compression mold; 3-pressure sensor; 4-push rod; 5-displacement sensor; 6-frame; 7-push rod support frame; 8-compression mold frame; 9 - shell round formwork; 10 - automatic control system.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, a packaging device for a diesel engine SCR catalytic converter includes a frame 6 on which a push rod 4, a compression mold 2 and a shell full-circle mold 1 are sequentially and fixedly arranged in parallel. In order to maintain stability, the push rod 4 is fixed on the frame 6 through the push rod support frame 7 provided at the tail, the compression mold 2 is fixed on the frame 6 through the compression mold frame 8 provided, and the shell round mold 1 is fixed by setting The full circle formwork 9 of the shell is fixed on the frame 6. The compression mold 2 is a cylindrical body with a taper, so that the liner can be gradually compressed to ensure the smooth progress of the packaging and make the gap filling density meet the index requirements. The shell round mold 1 is used for fixing the shell.

In order to achieve a better packaging effect and reduce the breakage rate, a pressure sensor 3 for detecting the packaging force of the carrier is arranged on the head of the push rod 4, and a displacement sensor 5 for detecting the displacement of the carrier is arranged on the frame 6 on one side of the push rod 4 , and the pressure sensor 3 and the displacement sensor 5 transmit the detected signals to the automatic control system 10 in real time, and the automatic control system 10 processes these signals to control the movement of the push rod 4, the compression mold 2 and the shell full circle mold 1 Operation, the control schematic diagram shown in Figure 3.

When working, put the liner-coated carrier into the compression mold 2 for clamping, put the shell into the full circle mold 1 for clamping, apply hydraulic pressure, and push the carrier into the shell through the push rod 4 .

During the encapsulation process, the pressure sensor 3 and the displacement sensor 5 are respectively used to detect the encapsulation force and displacement of the carrier. The automatic control system 10 displays and records various parameters in the encapsulation process in real time and automatically controls the encapsulation process. For example: when the encapsulation force exceeds the maximum limit and is lower than the minimum limit, the automatic control system 10 will give an alarm in time and stop the encapsulation; when the displacement of the carrier reaches the specified position, the automatic control system 10 will automatically return the encapsulation equipment to the initial position, Prepare for the next run.

Claims (6)

1. diesel SCR catalytic device packaging system; Comprise frame (6); It is characterized in that on the described frame (6) that secured in parallel is provided with push rod (4), compression molding (2) and housing Rounding Moulds (1) successively; Described push rod (4) head is provided with the pressure sensor (3) that is used to detect carrier package power; The frame (6) of described push rod (4) one sides is provided with the displacement transducer (5) that is used to detect the carrier displacement, and described pressure sensor (3) is connected outside automatic control system (10) with displacement transducer (5) signal.

2. a kind of diesel SCR catalytic device packaging system as claimed in claim 1 is characterized in that described push rod (4) is fixed on the frame (6) through aft mounted push rod bracing frame (7).

3. a kind of diesel SCR catalytic device packaging system as claimed in claim 1 is characterized in that described compression molding (2) is for having the cylindrical shell of tapering.

4. a kind of diesel SCR catalytic device packaging system as claimed in claim 1 is characterized in that described compression molding (2) is fixed on the frame (6) through the compression mould bases (8) that is provided with.

5. a kind of diesel SCR catalytic device packaging system as claimed in claim 1 is characterized in that described housing Rounding Moulds (1) is fixed on the frame (6) through the housing full circle mould bases (9) that is provided with.

6. a kind of diesel SCR catalytic device packaging system as claimed in claim 1 is characterized in that described automatic control system (10) connects control push rod (4), compression molding (2) and housing Rounding Moulds (1).

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