WO2022002067A1

WO2022002067A1 - A purifier

Info

Publication number: WO2022002067A1
Application number: PCT/CN2021/103192
Authority: WO
Inventors: Songtao Chen; Chao YU
Original assignee: Weichai Power Co Ltd; Ceres Intellectual Property Co Ltd
Current assignee: Weichai Power Co Ltd; Ceres Intellectual Property Co Ltd
Priority date: 2020-06-30
Filing date: 2021-06-29
Publication date: 2022-01-06
Anticipated expiration: 2022-12-30

Abstract

The invention discloses a purifier. The purifier comprises an L-shaped cylinder, and a cap and a head respectively arranged at two ends of the L-shaped cylinder, and the L-shaped cylinder is filled with a compacted desulfurizer. The desulfurizer filled in the foregoing purifier is repeatedly compacted. Firstly, the L-shaped cylinder can reduce the volume of the purifier and save space on the vehicle; secondly, if the purifier causes a space inside the desulfurizer due to long-time vibration of the vehicle, the desulfurizer located in the upper part of the L-shaped cylinder will flow downwards under gravity and the pressure of the gas over the desulfurizer to fill the space caused by vibration, thereby ensuring that the gas from the upper part is effectively filtered through the L-shaped desulfurizer bed to improve the desulfurization effect. Therefore, the purifier proposed by the invention can improve the desulfurization effect, facilitate onboard use and solve the current problem in the art.

Description

A PURIFIER

TECHNICAL FIELD

The present invention relates to the technical field of dry desulfurization at room temperature, particularly to a purifier.

BACKGROUND ART

In a gas system for solid oxide fuel cells, a desulfurization device is an indispensable device. A conventional desulfurization device is typically mounted vertically placed. In order that a gas can pass through the bed sufficiently, the device shall be a cylinder with an appropriate diameter-to-height ratio, but such design will result in a large volume, unfavorable to onboard use and inconvenient for the installation and subsequent maintenance of the device and the replacement of the desulfurizer. Long-term vibrations of the vehicle are liable to cause a space to form inside the desulfurizer, affecting the desulfurization effect.

Therefore, how to improve the desulfurization effect and facilitate onboard use is a current problem.

SUMMARY OF THE INVENTION

For this reason, an object of the present invention is to provide a purifier, which can improve the desulfurization effect and facilitate onboard use.

In one aspect of the invention a purifier comprises an L-shaped cylinder, and a cap and a head respectively arranged at two ends of the L-shaped cylinder. The L-shaped cylinder is filled with a compacted desulfurizer.

In one embodiment, one end of the cap is connected to a right-angle adapter.

A filter can be provided at the inlet end of the adapter.

The adapter can be in threaded connection with the cap.

The L-shaped cylinder can be designed to have two layers and internally filled with an insulated PTC (positive temperature coefficient) heating layer.

The cap can be provided with a distributor and a first stainless steel sintered mesh successively from the inlet end to the outlet end. The first stainless steel sintered mesh can have five layers.

A second stainless steel sintered mesh can be provided at the outlet end of the head.

In one embodiment, the head is in clamped connection with the L-shaped cylinder.

The purifier of the present invention comprises an L-shaped cylinder, and a cap and a head respectively arranged at two ends of the L-shaped cylinder. The L-shaped cylinder is filled with a compacted desulfurizer. The desulfurizer filled in the purifier is repeatedly compacted. Firstly, the L-shaped cylinder can reduce the volume of the purifier and save space on the vehicle. Secondly, if a space arises inside the desulfurizer due to long-term vibration of the vehicle, the desulfurizer located in the upper part of the L-shaped cylinder will flow downwards under gravity and the pressure of the gas over the desulfurizer to fill the space caused by vibration, thereby ensuring that the gas from the upper part is effectively filtered through the L-shaped desulfurizer bed to improve the desulfurization effect. Therefore, the purifier of the invention can improve the desulfurization effect and facilitate onboard use.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings used in the description are briefly described below. These are just some embodiments of the present invention.

Fig. 1 is a schematic view of a purifier.

Fig. 2 is a schematic view of the distribution of laser orifices on a distributor.

Fig. 3 is a schematic view of an adapter.

Fig. 4 is a schematic view of serial connection of purifiers.

In Fig. 1 to Fig. 4, the following reference numerals are used:

L-shaped cylinder-1; cap-2; head-3; desulfurizer-4; adapter-5; filter-6; distributor-7; first stainless steel sintered mesh-8; second stainless steel sintered mesh-9; connecting pipe-10; laser orifice-11.

DETAILED DESCRIPTION

The invention seeks to provide a purifier which can improve the desulfurization effect and facilitate onboard use.

Embodiments are described with reference to the drawings. The embodiments shown below do not have any limiting effect on the content of the invention described in the claims.

The purifier provided in the detailed description comprises an L-shaped cylinder 1, and a cap 2 and a head 3 respectively arranged at two ends of the L-shaped cylinder 1. The L-shaped cylinder 1 is filled with a compacted desulfurizer 4.

The desulfurizer 4 filled in the purifier is repeatedly compacted. Firstly, the L-shaped cylinder 1 can reduce the volume of the purifier and save space on the vehicle. Secondly, if a space arises inside the desulfurizer 4 due to long-term vibration of the vehicle, the desulfurizer 4 located in the upper part of the L-shaped cylinder 1 will flow downwards under gravity and the pressure of the gas over the desulfurizer 4 to fill the space caused by vibration, thereby ensuring that the gas from the upper part is effectively filtered through the L-shaped desulfurizer 4 bed to improve the desulfurization effect.

Therefore, the purifier of the invention can improve the desulfurization effect and facilitate onboard use.

The L-shaped cylinder 1 can have two layers and the interior of the two-layer L-shaped cylinder 1 can be filled with an insulated PTC heating layer. This can provide temperature suitable to operation of the desulfurizer 4 for the purifier at a low voltage.

The PTC heating system inside the structure can cause the temperature of the desulfurizer 4 to quickly rise to the operating ambient temperature after the vehicle is started, thereby further improving the actual use effect of the purifier and raising the desulfurization efficiency.

In the purifier provided in the detailed description, the cap 2 can be provided with a distributor 7 and a first stainless steel sintered mesh 8 successively from the inlet end to the outlet end. The distributor 7 can be a stainless steel sheet distributed with laser orifices 11 with a diameter of 1the order of millimeters. The diameter and thickness of the stainless steel sheet are selected according to the specific purifier design. A plurality of the laser orifices 11 are distributed around the center point of the stainless steel sheet as a center of symmetry.

In the foregoing purifier, the first stainless steel sintered mesh 8 may have five layers. The first stainless steel sintered mesh 8 has a gap of a few tens of millimeters from the gas and can effectively remove particulate matter with a diameter of a few microns. The cap 2 can be connected to the L-shaped cylinder 1 by means of welding to improve the overall structural stability of the purifier. Alternatively, the cap 2 can be connected to the L-shaped cylinder 1 in a snap-fit manner, or in any other manner that can have the same effect.

An end of the cap 2 can be connected to a right-angle adapter 5. A filter 6 can be provided at the inlet end of the adapter 5. The filter 6 can not only prevent the particles of the desulfurizer 4 from overflowing from the desulfurization device but also cause the gas from the pipeline to be evenly distributed and flow into the purifier.

When a gas enters the cap 2 from an upper port and contacts and passes through the distributor 7, turbulence is formed between the distributor 7 and the first stainless steel sintered mesh 8. After the gas is dispersed (e.g. by three times) the gas evenly flows to the desulfurizer 4 in the purifier.

The adapter 5 and the cap 2 of the purifier can be connected to each other in a threaded, clamped or welded manner, or in any other manner that can have the same effect.

The outlet end of the head 3 can be provided with a second stainless steel sintered mesh 9. The second stainless steel sintered mesh 9 can be welded to the head 3. The second stainless steel sintered mesh 9 can remove particulate matter with a diameter of a few microns, thereby ensuring the cleanliness of the gas out of the purifier.

The head 3 can be connected to the L-shaped cylinder 1 in a clamped, snap-fit or threaded manner, or in any other manner that can have the same effect.

For example, the head 3 can be in clamped connection with the L-shaped cylinder 1. When the desulfurizer 4 is filled or replaced, only the bolt fixing the clamp needs to be loosened to remove the clamp. In this way, the desulfurizer 4 can be conveniently filled or replaced, thereby reducing the workload of the operator.

The purifier can be used separately. As a single structure is small in size and weight, the desulfurizer 4 can be installed and replaced conveniently. In addition, a plurality of purifiers can be used in modular combination, as shown in Fig. 4. According to different catalysts and operating requirements, a number of modular devices can be quickly assembled using connecting pipes 10 in series and parallel, to increase the volume of the desulfurizer 4, thereby achieving a good desulfurization effect.

Various modifications to these embodiments will be apparent. The general principle defined herein can be implemented in other embodiments without departing from the scope of the present invention.

Claims

A purifier, comprising:

an L-shaped cylinder (1) ; and

a cap (2) and a head (3) respectively arranged at two ends of the L-shaped cylinder (1) ;

wherein the L-shaped cylinder (1) is filled with a compacted desulfurizer (4) .
The purifier according to claim 1, wherein one end of the cap (2) is connected to a right-angle adapter (5) .
The purifier according to claim 2, wherein a filter (6) is provided at the inlet end of the adapter (5) .
The purifier according to claim 2 or 3, wherein the adapter (5) is in threaded connection with the cap (2) .
The purifier according to any preceding claim, wherein the L-shaped cylinder (1) is designed to have two layers and is internally filled with an insulated PTC heating layer.
The purifier according to any preceding claim, wherein the cap (2) is provided with a distributor (7) and a first stainless steel sintered mesh (8) successively from the inlet end to the outlet end.
The purifier according to claim 6, wherein the first stainless steel sintered mesh (8) has five layers.
The purifier according to any preceding claim, wherein a second stainless steel sintered mesh (9) is provided at the outlet end of the head (3) .
The purifier according to any preceding claim, wherein the head (3) is in clamped connection with the L-shaped cylinder (1) .