阅读说明：本技术 一种平板式催化剂中试检测装样装置及方法 (Device and method for pilot test sample loading of flat-plate catalyst ) 是由 鲍强 王凯 姚燕 王乐乐 杨晓宁 孔凡海 雷嗣远 马云龙 卿梦磊 张磊 李乐田 于 2021-08-10 设计创作，主要内容包括：本发明公开一种平板式催化剂中试检测装样装置及方法,该装置包括相适配的壳体、封盖和密封垫片,壳体的空腔内装有平板式催化剂,封盖盖于壳体顶部且二者连接处密封,壳体的空腔内壁间隔设置有与平板式催化剂适配的内架槽道。本发明的壳体内腔尺寸固定,具有标准化水平,平板式催化剂按安装要求裁剪,形成不同数量的折弯,通过内架槽道按序快速安装于壳体内部,封盖后密封良好,装样装置安装方便,有效地降低了装载要求,提高了工作效率,装样的标准化程度高,催化剂之间结构稳定,具有较好的强度支撑,距离固定良好,节距稳定,同时均匀地分割了催化剂单元体的截面,形成了均匀的孔道,保证了催化剂表面流速的均匀分布,提高了测试结果的可靠性。(The invention discloses a device and a method for pilot test sample loading of a flat-plate catalyst. The inner cavity of the shell is fixed in size and has a standardized level, the flat-plate catalyst is cut according to the installation requirement to form different numbers of bends, the flat-plate catalyst is quickly installed in the shell in sequence through the inner frame channel, the sealing is good after the sealing, the sample installation device is convenient to install, the loading requirement is effectively reduced, the working efficiency is improved, the sample installation standardization degree is high, the structure among the catalysts is stable, the flat-plate catalyst has better strength support, the distance is well fixed, the pitch is stable, meanwhile, the cross section of the catalyst unit body is uniformly divided, uniform pore channels are formed, the uniform distribution of the surface flow velocity of the catalyst is ensured, and the reliability of the test result is improved.)

1. The device for pilot test sample loading of the flat-plate catalyst is characterized by comprising a shell, a sealing cover and a sealing gasket which are matched, wherein a plurality of flat-plate catalysts are arranged in a cavity of the shell, the sealing cover covers the top of the shell, the joint of the shell and the sealing cover is sealed, the shell can be opened or closed by the sealing cover, a plurality of inner frame channels matched with the flat-plate catalysts are arranged on the inner wall of the cavity of the shell at intervals, and each flat-plate catalyst is arranged in the shell through the inner frame channels.

2. The flat-plate catalyst pilot test sample loading device according to claim 1, wherein a plurality of flat-plate catalysts are transversely loaded in the cavity of the housing, a plurality of inner frame channels adapted to the flat-plate catalysts are arranged at intervals on the inner walls of the opposite sides of the cavity, the inner frame channels on the inner walls of the opposite sides of the cavity are symmetrically arranged, and each flat-plate catalyst is installed in the housing through two inner frame channels which are symmetrical on the left side and the right side of the flat-plate catalyst.

3. The flat-plate catalyst pilot test sample loading device according to claim 1, wherein a plurality of flat-plate catalysts are longitudinally loaded in the cavity of the housing, a plurality of inner frame channels adapted to the flat-plate catalysts are arranged at intervals on the inner wall of the bottom of the housing, and each flat-plate catalyst is installed in the housing through the inner frame channels.

4. The flat-plate catalyst pilot test sample loading device according to any one of claims 1 to 3, wherein the depth of the inner frame groove is 2mm to 5 mm.

5. The device for pilot test sample loading of flat catalyst according to claim 1, wherein the cover has two sealing ports symmetrically disposed on a surface thereof facing the housing for fixing and sealing the cover, the two sealing ports respectively contact with the inner wall of the housing and are sealed by a sealing gasket or sealant, and the sealing ports are adapted to the position of the sealing gasket.

6. The flat-plate catalyst pilot test sample loading device according to any one of claims 1 to 3, wherein the flat-plate catalyst contained in the cavity of the housing comprises a first bent catalyst plate and a second bent catalyst plate, one second bent catalyst plate is arranged between every two first bent catalyst plates, and one first bent catalyst plate is arranged between every two second bent catalyst plates.

7. A flat-plate catalyst pilot test sample loading method is characterized in that the sample loading is carried out by adopting the flat-plate catalyst pilot test sample loading device of any one of claims 1 to 6, and the method comprises the following steps:

the method comprises the steps of cutting a flat-plate catalyst, sequentially cutting a first bending catalyst plate body and a second bending catalyst plate body according to one bend and two bends to form the first bending catalyst plate body and the second bending catalyst plate body, wherein the widths of the first bending catalyst plate body and the second bending catalyst plate body are both larger than the inner width of a shell body by 4-10 mm, then sequentially loading the first bending catalyst plate body and the second bending catalyst plate body into the shell body through an inner frame channel, arranging a second bending catalyst plate body between every two first bending catalyst plate bodies, arranging a first bending catalyst plate body between every two second bending catalyst plate bodies, arranging the bends on the first bending catalyst plate body and the second bending catalyst plate body in a staggered mode, arranging 2-3 detection unit bodies of the same layer of catalyst in the shell body by adopting a staggered arrangement method to form uniform pore channels, and ensuring that the surface flow velocity of the flat-plate catalyst plate body is uniformly distributed.

Technical Field

The invention belongs to the technical field of flat-plate catalysts, and particularly relates to a device and a method for pilot test sample loading of a flat-plate catalyst.

Background

The SCR flue gas denitration technology is the most main denitration technology at present in a coal-fired power plant,the catalyst is the core of the technology, and at present, the catalyst mainly comprises a honeycomb catalyst and a plate catalyst. Reactivity of the plate catalyst, including activity, SO₂/SO₃The conversion rate, the denitration efficiency and the ammonia escape are very important evaluation indexes. In standards such as a flat plate type flue gas denitration catalyst (GB/T-31584), a thermal power plant flue gas denitration catalyst detection technical specification (DL/T1286), a flue gas denitration catalyst detection technical specification (GB/T38219) and the like, strict specifications and requirements are provided for pilot test detection of the reaction performance of the flat plate type catalyst, and based on the requirements, the flat plate type catalyst is subjected to full-life management. When a pilot test sample of the flat-plate catalyst is prepared according to the specification in the detection technical specification of the flue gas denitration catalyst of the thermal power plant, the pilot test sample is cut according to the standard size of the section of the pilot test sample of (150mm +/-3 mm) × (150mm +/-3 mm), and the length of the pilot test sample is consistent with the original height of the catalyst module. The pilot test sample loading is generally based on the geometric specific surface area of the pilot test unit body being equal to the design specific surface area.

From the operation of actual pilot test, it is relatively difficult to reach the requirement of flat flue gas denitration catalyst, and on one hand, after the sample is installed in the detecting unit body, the contact width between adjacent single plates has no clear limit, and is difficult to obtain accurately, and on the other hand, the plate body is easy to be extruded and deformed after being installed in the unit body, and the actual contact area is influenced, and then the reaction performance of the flat catalyst is influenced, and even the production, detection evaluation and scrapping of the product are influenced. In addition, in order to ensure the air tightness, the conventional sample loading device generally adopts a fully-sealed box body, which is not beneficial to loading the plates and has troublesome operation. Therefore, a set of sample loading device and a matched sample loading method which are reliable and convenient to operate are required to be developed, and the reliability and standardization of sample loading are ensured.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a device and a method for pilot test sample loading of a flat-plate catalyst.

In order to achieve the purpose and achieve the technical effect, the invention adopts the technical scheme that:

a pilot test sample loading device for flat-plate catalysts comprises a shell, a sealing cover and a sealing gasket which are matched, wherein a plurality of flat-plate catalysts are arranged in a cavity of the shell, the sealing cover covers the top of the shell, the joint of the shell and the sealing cover is sealed, the shell can be opened or closed, a plurality of inner frame channels matched with the flat-plate catalysts are arranged on the inner wall of the cavity of the shell at intervals, and each flat-plate catalyst is arranged in the shell through the inner frame channels.

Furthermore, a plurality of flat-plate catalysts are transversely arranged in the cavity of the shell, a plurality of inner frame channels matched with the flat-plate catalysts are arranged on the inner walls of the two opposite sides of the cavity at intervals, the inner frame channels on the inner walls of the two opposite sides of the cavity are symmetrically arranged, and each flat-plate catalyst is arranged in the shell through the two inner frame channels which are symmetrical on the left side and the right side of the flat-plate catalyst.

Furthermore, a plurality of flat-plate catalysts are longitudinally arranged in the cavity of the shell, a plurality of inner frame channels matched with the flat-plate catalysts are arranged on the inner wall of the bottom of the shell at intervals, and each flat-plate catalyst is arranged in the shell through the inner frame channels.

Furthermore, the depth of the inner frame channel is 2 mm-5 mm.

Furthermore, one side of the sealing cover facing the shell is symmetrically provided with two sealing interfaces for fixing and sealing the sealing cover, when the sealing cover covers the shell, the two sealing interfaces are respectively contacted with the inner wall of the shell and sealed through a sealing gasket or a sealant, and the sealing interfaces are matched with the position of the sealing gasket.

Furthermore, the flat-plate catalyst contained in the cavity of the shell comprises a first bending catalyst plate body and a second bending catalyst plate body, a second bending catalyst plate body is arranged between every two first bending catalyst plate bodies, and a first bending catalyst plate body is arranged between every two second bending catalyst plate bodies.

The invention discloses a pilot test sample loading method for a flat-plate catalyst, which comprises the following steps:

the method comprises the steps of cutting a flat-plate catalyst, sequentially cutting a first bending catalyst plate body and a second bending catalyst plate body according to one bend and two bends to form the first bending catalyst plate body and the second bending catalyst plate body, wherein the widths of the first bending catalyst plate body and the second bending catalyst plate body are both larger than the inner width of a shell body by 4-10 mm, then sequentially placing the first bending catalyst plate body and the second bending catalyst plate body into the shell body through an inner frame channel, arranging a second bending catalyst plate body between every two first bending catalyst plate bodies, arranging a first bending catalyst plate body between every two second bending catalyst plate bodies, and arranging the bends on the first bending catalyst plate body and the second bending catalyst plate body in a staggered mode to form uniform channels, wherein 2-3 detection unit bodies of the same layer of catalyst are arranged in the shell body in a staggered mode to further form uniform channels, and the uniform distribution of the surface flow velocity of the flat-plate catalyst plate body is guaranteed.

Compared with the prior art, the invention has the beneficial effects that:

the invention discloses a device and a method for pilot test sample loading of a flat-plate catalyst, wherein the device comprises a shell, a sealing cover and a sealing gasket which are matched, the cavity of the shell is internally provided with a plurality of flat-plate catalysts, the sealing cover covers the top of the shell, the joint of the shell and the sealing cover is sealed, the sealing cover can open or close the shell, the inner wall of the cavity of the shell is provided with a plurality of inner frame channels matched with the flat-plate catalysts at intervals, and each flat-plate catalyst is arranged in the shell through the inner frame channels. The device and the method for pilot test sample loading of the flat-plate catalyst have the advantages that the size of the inner cavity of the shell is fixed, the standard level is achieved, the flat-plate catalyst is cut according to the installation requirement to form bends with different numbers, the flat-plate catalyst is rapidly installed inside the shell in sequence through the inner frame channel, the sealing is good after the sealing cover is closed, the sample loading device is convenient to install, the loading requirement is effectively reduced, the working efficiency is improved, the standardization degree of the sample loading is high, the catalyst is stable in structure, good in strength support, good in distance fixing and stable in pitch, the cross sections of the catalyst unit bodies are uniformly divided, uniform pore channels are formed, the uniform distribution of the surface flow velocity of the catalyst is guaranteed, and the reliability of a test result is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation of the flat catalyst of the present invention;

FIG. 3 is a layout view of a pilot test unit cell according to example 1 of the present invention;

FIG. 4 is a layout diagram of a pilot test unit according to example 2 of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to clearly and clearly define the scope of the present invention.

As shown in fig. 1-4, a device for pilot test sample loading of a flat catalyst comprises a housing 11, a sealing cover 12 and a sealing gasket 31 which are matched, wherein a plurality of flat catalysts are arranged in a cavity of the housing 11, the sealing cover 12 covers the top of the housing 11 and seals the joint of the two, the sealing can be performed by adding the sealing gasket 31 or adding a sealant, the housing 11 can be opened or closed by the sealing cover 12, a plurality of inner frame channels 13 matched with the flat catalysts are arranged on the inner wall of the cavity of the housing 11 at intervals, the pitch of the inner frame channels 13 is r, and each flat catalyst is longitudinally or transversely or obliquely arranged in the housing 11 through the inner frame channels 13.

The flat-plate catalyst contained in the cavity of the housing 11 includes a first bending catalyst plate body 21 and a second bending catalyst plate body 22, a second bending catalyst plate body 22 is arranged between every two first bending catalyst plate bodies 21, and a first bending catalyst plate body 21 is arranged between every two second bending catalyst plate bodies 22.

A pilot test sample loading method for a flat-plate catalyst comprises the following steps:

cutting the flat-plate catalyst, sequentially cutting the flat-plate catalyst according to a bend and two bends to form a first bending catalyst plate body 21 and a second bending catalyst plate body 22, wherein the widths of the first bending catalyst plate body 21 and the second bending catalyst plate body 22 are both larger than the internal width of the shell body by 4-10 mm, then sequentially loading the first bending catalyst plate body 21 and the second bending catalyst plate body 22 into the shell body 11 through an internal frame channel 13, arranging a second bending catalyst plate body 22 between every two first bending catalyst plate bodies 21, arranging a first bending catalyst plate body 21 between every two second bending catalyst plate bodies 22, arranging the bends on the first bending catalyst plate body 21 and the second bending catalyst plate body 22 in a staggered mode, forming uniform pore channels, and ensuring the uniform distribution of the surface flow rate of the flat-plate catalyst.

Example 1

As shown in fig. 1-3, a device for pilot test sample loading of a flat catalyst comprises a housing 11, a sealing cover 12 and a sealing gasket 31 which are matched, wherein a plurality of flat catalysts are horizontally arranged in a cavity of the housing 11, the sealing cover 12 covers the top of the housing 11 and seals the joint of the two, the sealing can be performed by adding the sealing gasket 31 or adding a sealant, the housing 11 can be opened or closed by the sealing cover 12, a plurality of inner frame channels 13 matched with the flat catalysts are arranged on the inner walls of two opposite sides of the cavity of the housing 11 at intervals, the pitch of the inner frame channels 13 is r, the inner frame channels 13 on the inner walls of the two opposite sides of the cavity are symmetrically arranged, and each flat catalyst is transversely or obliquely arranged in the housing 11 through the two inner frame channels 13 which are symmetrically arranged on the left side and the right side of the flat catalyst.

The depth of the inner frame channel 13 is 2 mm-5 mm, and the width of the inner frame channel 13 is designed slightly larger than the thickness of the shell 11 by taking the conventional thickness of the catalyst plate body as reference. The width and height of the inside of the shell 11 are a and b respectively, and are set according to 150mm +/-3 mm.

The cover 12 is provided with two sealing interfaces 14 symmetrically on a surface facing the housing 11 for fixing and sealing the cover 12, the sealing interfaces 14 are adapted to the position of the sealing gasket 31, and when the cover 12 is covered on the housing 11, the two sealing interfaces 14 are respectively contacted with the inner wall of the housing 11 and sealed by the sealing gasket 31 or sealant or other sealing methods.

A pilot test sample loading method for a flat-plate catalyst comprises the following steps:

cutting the flat-plate catalyst, cutting the width of the flat-plate catalyst according to a + (4-10 mm), then loading the flat-plate catalyst into a shell 11 piece by piece, respectively clamping two ends of each flat-plate catalyst plate body into inner frame grooves 13 on two sides, and after loading samples, ensuring the effective width of the plate bodies to be a, thereby ensuring the standardization of the loading samples; due to the arrangement of the inner frame channel 13, the effective pitch r of the sample loading catalyst is ensured, the extrusion caused by the limitation of the self weight and the width of the sample is avoided, and the effective surface area is reduced;

in a pilot test detection unit body, the flat-plate catalyst is sequentially cut according to one bending and two bending to obtain a first bending catalyst plate body 21 and a second bending catalyst plate body 22, the widths of the first bending catalyst plate body 21 and the second bending catalyst plate body 22 are all larger than the internal width of the shell 11 by 4-10 mm, then the first bending catalyst plate body 21 and the second bending catalyst plate body 22 are sequentially arranged in the shell 11 through an inner frame channel 13, a second bending catalyst plate body 22 is arranged between every two first bending catalyst plate bodies 21, a first bending catalyst plate body 21 is arranged between every two second bending catalyst plate bodies 22, the bending dislocation arrangement on the first bending catalyst plate body 21 and the second bending catalyst plate body 22 forms an even pore channel, and the flow velocity of the flat-plate catalyst surface is uniformly distributed.

As shown in fig. 2, the bending parts at intervals on the flat-plate catalyst can provide stable support to ensure effective contact surface area, and on the other hand, the cross sections of the unit bodies can be uniformly divided, so that the uniform distribution of flow velocity of adjacent channels is facilitated, and the influence on the measurement result caused by the over-high or over-low local flow velocity on the surface of the catalyst is avoided; as shown in fig. 3, the same layer of catalyst generally includes two detecting unit bodies, and is disposed in the housing 11 by using a staggered arrangement method, so as to form uniform channels, ensure uniform distribution of surface flow velocity of the flat catalyst plate body, and improve reliability of the measurement result.

The invention carries out standardization requirement on the unit body of the pilot test, ensures the sealing performance of the sample loading device, ensures the standardization of the sample loading, and simultaneously ensures the strength of the sample and the distribution uniformity of the test flow rate, thereby improving the reliability of the test result.

Example 2

As shown in fig. 1-3, a pilot test sample loading device for flat catalysts comprises a housing 11, a sealing cover 12 and a sealing gasket 31 which are matched with each other, wherein a plurality of flat catalysts are transversely arranged in parallel in a cavity of the housing 11, the sealing cover 12 covers the top of the housing 11, the joint of the two is sealed by adding the sealing gasket 31, the housing 11 can be opened or closed by the sealing cover 12, a plurality of inner frame channels 13 matched with the flat catalysts are arranged on the inner walls of the left side and the right side of the cavity of the housing 11 at intervals, the pitch of the inner frame channels 13 is r, the inner frame channels 13 on the inner walls of the left side and the right side of the cavity are symmetrically arranged, and each flat catalyst is installed in the housing 11 through the two inner frame channels 13 which are symmetrically arranged on the left side and the right side of the flat catalyst.

The depth of the inner frame channel 13 is 2mm, and the width of the inner frame channel 13 is designed to be slightly larger than the thickness of the shell 11 by taking the conventional thickness of the catalyst plate body as a reference. The width and height of the inside of the housing 11 are a and b, respectively, and are set to be 150 mm.

The side of the cover 12 facing the housing 11 is symmetrically provided with two sealing interfaces 14 for fixing and sealing the cover 12, the sealing interfaces 14 are adapted to the position of the sealing gasket 31, and when the cover 12 is covered on the housing 11, the two sealing interfaces 14 are respectively in contact with the inner wall of the housing 11 and are sealed by the sealing gasket 31.

The flat-plate catalyst contained in the cavity of the housing 11 includes a first bending catalyst plate body 21 and a second bending catalyst plate body 22, a second bending catalyst plate body 22 is arranged between every two first bending catalyst plate bodies 21, and a first bending catalyst plate body 21 is arranged between every two second bending catalyst plate bodies 22.

A pilot test sample loading method for a flat-plate catalyst comprises the following steps:

cutting the flat-plate catalyst, cutting the flat-plate catalyst according to the width of a +4mm, then loading the flat-plate catalyst into the shell 11 piece by piece, respectively clamping two ends of each flat-plate catalyst plate body into the inner frame grooves 13 on two sides, and after sample loading, ensuring the effective width of the plate body to be a, thereby ensuring the standardization of the sample loading; due to the arrangement of the inner frame channel 13, the effective pitch r of the sample loading catalyst is ensured, the extrusion caused by the limitation of the self weight and the width of the sample is avoided, and the effective surface area is reduced;

in a pilot test detection unit body, a flat-plate catalyst is sequentially cut according to one bending and two bending to obtain a first bending catalyst plate body 21 and a second bending catalyst plate body 22, then the first bending catalyst plate body 21 and the second bending catalyst plate body 22 are sequentially arranged in a shell 11 through an inner frame channel 13, a second bending catalyst plate body 22 is arranged between every two first bending catalyst plate bodies 21, a first bending catalyst plate body 21 is arranged between every two second bending catalyst plate bodies 22, and the bending dislocation arrangement on the first bending catalyst plate body 21 and the second bending catalyst plate body 22 forms an even pore channel to ensure the uniform distribution of the surface flow velocity of the flat-plate catalyst.

Example 3

As shown in FIGS. 2 and 4, the device for pilot test sample loading of the flat catalyst comprises a shell 11, a sealing cover 12 and a sealing gasket 31 which are matched, wherein a plurality of flat catalysts are longitudinally arranged in parallel in a cavity of the shell 11, the sealing cover 12 covers the top of the shell 11, the joint of the two flat catalysts is sealed, a plurality of inner frame channels 13 matched with the flat catalysts are arranged on the inner wall of the bottom of the shell 11 at intervals, and each flat catalyst is installed in the shell 11 through the inner frame channels 13.

In order to make the catalyst more stable and fixed, a plurality of inner frame channels 13 adapted to the flat-plate catalyst are arranged on the opposite surfaces of the sealing cover 12 and the shell 11 at intervals, the pitch of the inner frame channels 13 is r, and each flat-plate catalyst is installed in the shell 11 through two inner frame channels 13 which are symmetrical at the upper side and the lower side.

The flat-plate catalyst contained in the cavity of the housing 11 includes a first bending catalyst plate body 21 and a second bending catalyst plate body 22, a second bending catalyst plate body 22 is arranged between every two first bending catalyst plate bodies 21, and a first bending catalyst plate body 21 is arranged between every two second bending catalyst plate bodies 22.

The same as in example 1.

The parts of the invention not specifically described can be realized by adopting the prior art, and the details are not described herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.