CN110160855B - Gas dilution sampling joint and method of use - Google Patents
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- CN110160855B CN110160855B CN201910539134.3A CN201910539134A CN110160855B CN 110160855 B CN110160855 B CN 110160855B CN 201910539134 A CN201910539134 A CN 201910539134A CN 110160855 B CN110160855 B CN 110160855B
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- 238000005070 sampling Methods 0.000 title claims abstract description 103
- 238000010790 dilution Methods 0.000 title claims abstract description 28
- 239000012895 dilution Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims description 8
- 238000005192 partition Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 3
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
- 239000011630 iodine Substances 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 70
- 230000006870 function Effects 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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Abstract
Description
技术领域Technical field
本发明涉及一种采样装置，具体地说，是涉及一种气体稀释采样接头及使用方法。The present invention relates to a sampling device, specifically, to a gas dilution sampling joint and a method of use.
背景技术Background technique
在危化品大量泄露、火灾事故发生时，危险气体的浓度往往是日常微量泄露时的数百上千倍，消防部队配备的气体检测仪经常出现浓度误报和传感器中毒的情况，这样的错误对现场救援人员是致命的，并不适合应急救援期间使用。在浓度检测的过程中，需要对采样气体按照一定比例稀释后再送入检测设备中进行检测，现有的浓度检测方法，如果要实现稀释功能必须有配备的稀释气源用于标气的稀释，同时，还必须有一个实现不同配比混合的气路系统来实现稀释气与标气的混合，需要对稀释气及标气的实际流量进行准确控制及测量。When hazardous chemicals are leaked in large quantities or fire accidents occur, the concentration of dangerous gases is often hundreds or thousands of times higher than in daily trace leaks. Gas detectors equipped by firefighting forces often have concentration false alarms and sensor poisoning. Such errors It is fatal to on-site rescue personnel and is not suitable for use during emergency rescue. In the process of concentration detection, the sampled gas needs to be diluted according to a certain proportion and then sent to the detection equipment for detection. If the existing concentration detection method is to realize the dilution function, it must be equipped with a dilution gas source for dilution of the standard gas. At the same time, there must be a gas circuit system that can achieve different mixing ratios to achieve the mixing of diluent gas and standard gas. It is necessary to accurately control and measure the actual flow rates of diluent gas and standard gas.
该方法存在如下问题：设备成本很高并且系统很复杂，系统无法集成在一个便携式检测设备上，因此，本发明主要解决此问题，提供一个有稀释功能的采样装置，同时不增加额外的配件及成本。This method has the following problems: the equipment cost is very high and the system is complex, and the system cannot be integrated on a portable detection device. Therefore, the present invention mainly solves this problem and provides a sampling device with a dilution function without adding additional accessories and cost.
发明内容Contents of the invention
本发明的目的在于提供一种气体稀释采样接头及使用方法，将气体的稀释功能集成在同一设备上，不需要额外增加配件，降低了成本。The object of the present invention is to provide a gas dilution sampling joint and a method of use, which integrate the gas dilution function on the same device without adding additional accessories, thereby reducing costs.
为实现上述目的，本发明采用的技术方案如下：In order to achieve the above objects, the technical solutions adopted by the present invention are as follows:
一种气体稀释采样接头，包括呈管状结构的壳体，通过螺纹与壳体顶部、底部连接的前盖和后盖，设置在前盖上的进气口，设置在后盖上的出气口，还包括设置在壳体内部且与壳体同轴心的采样柱，环绕在采样柱外侧设置的用于形成干净空气的过滤模块，可拆卸设置在壳体内部上侧的用于将采样气分流至采样柱和过滤模块的第一多孔隔板，设置在采样柱上部用于滤除采样气中细小颗粒的多孔纤维柱，设置在采样柱下部且与多孔纤维柱连接的样气采样孔，以及设置在壳体内部下侧的用于导通采样气与干净空气的第二多孔隔板。A gas dilution sampling joint includes a shell with a tubular structure, a front cover and a back cover connected to the top and bottom of the shell through threads, an air inlet provided on the front cover, and an air outlet provided on the rear cover. It also includes a sampling column arranged inside the shell and coaxial with the shell, a filter module arranged around the outside of the sampling column for forming clean air, and a detachable filter module arranged on the upper side of the shell for dividing the sampling gas. A first porous partition to the sampling column and the filter module, a porous fiber column arranged at the upper part of the sampling column for filtering out fine particles in the sample gas, a sample gas sampling hole arranged at the lower part of the sampling column and connected to the porous fiber column, and a second porous partition disposed on the lower side of the interior of the housing for communicating the sample gas and clean air.
进一步的，所述前盖与第一多孔隔板形成的腔体中设置有用于滤除采样气中灰尘、油份颗粒物的粗滤模块。Furthermore, a coarse filter module for filtering dust and oil particles in the sample gas is provided in the cavity formed by the front cover and the first porous partition.
进一步的，所述粗滤模块为烧结PP纤维滤芯。Furthermore, the coarse filter module is a sintered PP fiber filter element.
进一步的，所述前盖与第一多孔隔板之间设置有压紧弹簧，所述压紧弹簧位于粗滤模块与壳体内侧壁形成的空隙中。Further, a compression spring is provided between the front cover and the first porous partition, and the compression spring is located in the gap formed by the rough filter module and the inner wall of the housing.
进一步的，所述第二多孔隔板与后盖形成的腔体中设置有用于检测接头工作情况的压力传感器。Further, a pressure sensor for detecting the working condition of the joint is provided in the cavity formed by the second porous partition and the back cover.
进一步的，所述过滤模块包括从上至下依次设置且通过O型圈密封连接的填充有高锰酸钾活性氧化铝柱与碱性煤质活性炭混合物的第一过滤模块、填充有由无纺密纸制成的精滤滤芯的第二过滤模块、填充有钯催化氧化铝颗粒的第三过滤模块、填充有高碘值的椰壳活性炭颗粒的第四过滤模块。Further, the filtration module includes a first filtration module filled with a mixture of potassium permanganate activated alumina columns and alkaline coal-based activated carbon, which is arranged sequentially from top to bottom and connected through an O-ring seal, and is filled with a mixture of non-woven The second filter module is a fine filter element made of dense paper, the third filter module is filled with palladium catalyzed alumina particles, and the fourth filter module is filled with coconut shell activated carbon particles with high iodine value.
进一步的，所述第一过滤模块为环状盒体，且盒体的上端面和下端面为多孔结构，所述第二过滤模块、第三过滤模块、第四过滤模块的结构与第一过滤模块相同。Further, the first filter module is an annular box, and the upper and lower end surfaces of the box are porous structures. The structures of the second filter module, the third filter module, and the fourth filter module are the same as those of the first filter module. The modules are the same.
进一步的，所述壳体由透明材料制成。Further, the housing is made of transparent material.
进一步的，所述壳体上设有透明的观察带。Further, a transparent observation band is provided on the housing.
基于上述的一种气体稀释采样接头，本发明还提供了该采样接头的使用方法，包括如下步骤：Based on the above-mentioned gas dilution sampling joint, the present invention also provides a method of using the sampling joint, which includes the following steps:
(1)在采样气经过进气口进入壳体内部之后，经过粗滤模块滤除采样气中的灰尘、油份颗粒物，采样气在经过第一多孔隔板之后被分成两部分，一部分流入过滤模块中，另一部分流入采样柱中；(1) After the sampling gas enters the interior of the housing through the air inlet, it passes through the coarse filter module to filter out dust and oil particles in the sampling gas. After passing through the first porous partition, the sampling gas is divided into two parts, and one part flows into In the filter module, the other part flows into the sampling column;
(2)在过滤模块中，采样气在经过多级过滤之后，形成干净的空气进入第二多孔隔板与后盖形成的腔体中；(2) In the filter module, after multi-stage filtration, the sampled gas forms clean air and enters the cavity formed by the second porous partition and the back cover;
(3)同时，进入采样柱中的采样气在多孔纤维柱中过滤掉细小的颗粒物，最后由样气采样孔进入第二多孔隔板与后盖形成的腔体中；(3) At the same time, the sample gas entering the sampling column filters out fine particles in the porous fiber column, and finally enters the cavity formed by the second porous partition and the back cover through the sample gas sampling hole;
(4)在该腔体中，空气与采样气按照一定比例混合，其中，稀释的比例根据样气采样孔的尺寸确定，达到稀释采样气的目的，最后将稀释后的采样气通过出气口排出。(4) In this cavity, air and sampling gas are mixed according to a certain ratio. The dilution ratio is determined according to the size of the sample gas sampling hole to achieve the purpose of diluting the sampling gas. Finally, the diluted sampling gas is discharged through the air outlet. .
与现有技术相比，本发明具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
(1)本发明将气体的稀释功能集成在采样接头上，在采样气进入采样接头内部之后，一部分通过过滤模块净化为干净的空气，另一部分通过多孔纤维柱、样气采样孔控制采样气的排出量，最终空气与采样气按照一定比例混合，达到稀释采样气的目的，便于后续的气体检测；本发明主要针对一些高浓度污染气体环境中的采样要求，通过固定比例稀释的方式直接将采样气进行稀释，提高了使用的方便性，不需要额外增加配件，降低了成本，且采样接头的结构简单、体积小。(1) The present invention integrates the gas dilution function on the sampling joint. After the sampling gas enters the inside of the sampling joint, part of it is purified into clean air through the filter module, and the other part controls the concentration of the sampling gas through the porous fiber column and the sample gas sampling hole. The discharge amount, the final air and the sampling gas are mixed according to a certain ratio to achieve the purpose of diluting the sampling gas and facilitate subsequent gas detection; this invention mainly aims at the sampling requirements in some high-concentration polluted gas environments, and directly dilutes the sampled gas with a fixed ratio. The gas is used for dilution, which improves the convenience of use, does not require additional accessories, reduces costs, and the sampling connector has a simple structure and a small volume.
(2)本发明的壳体采用透明材料制成，或者在所述壳体上设有透明的观察带，便于观察过滤模块内填充的滤料的使用情况，方便及时维护更换。(2) The casing of the present invention is made of transparent material, or a transparent observation belt is provided on the casing to facilitate observation of the use of the filter material filled in the filter module and to facilitate timely maintenance and replacement.
(3)本发明设置的压紧弹簧在前盖通过螺纹与壳体连接时，会向下挤压第一多孔隔板，使各个过滤模块紧密接触，再配合O型圈的作用，达到压紧、密封过滤模块的目的。(3) The compression spring provided in the present invention will squeeze the first porous partition downward when the front cover is connected to the casing through threads, so that each filter module is in close contact, and cooperates with the function of the O-ring to achieve compression. Tight and sealed filter module.
(4)本发明设置的压力传感器用于检测腔体的气体压力，及时获知接头的工作情况，防止接头内部堵塞。(4) The pressure sensor provided in the present invention is used to detect the gas pressure of the cavity, obtain the working status of the joint in time, and prevent the internal blockage of the joint.
附图说明Description of drawings
图1为本发明的剖面结构示意图。Figure 1 is a schematic cross-sectional structural diagram of the present invention.
图2为图1中第一过滤模块的结构示意图。Figure 2 is a schematic structural diagram of the first filter module in Figure 1.
图3为本发明的外部结构示意图。Figure 3 is a schematic diagram of the external structure of the present invention.
其中，附图标记对应的名称为：Among them, the names corresponding to the reference signs are:
1-前盖，2-壳体，3-后盖，4-压力传感器，5-压紧弹簧，6-第一多孔隔板，7-过滤模块，8-O型圈，9-进气口，10-第二多孔隔板，11-采样柱，12-样气采样孔，13-多孔纤维柱，14-出气口，15-粗滤模块，16-观察带，71-第一过滤模块，72-第二过滤模块，73-第三过滤模块，74-第四过滤模块。1-front cover, 2-casing, 3-back cover, 4-pressure sensor, 5-compression spring, 6-first porous partition, 7-filter module, 8-O-ring, 9-air inlet port, 10-the second porous partition, 11-sampling column, 12-sample gas sampling hole, 13-porous fiber column, 14-gas outlet, 15-coarse filter module, 16-observation belt, 71-first filter Module, 72-the second filter module, 73-the third filter module, 74-the fourth filter module.
具体实施方式Detailed ways
下面结合附图说明和实施例对本发明作进一步说明，本发明的方式包括但不仅限于以下实施例。The present invention will be further described below in conjunction with the description of the drawings and examples. The modes of the present invention include but are not limited to the following examples.
实施例Example
如图1-3所示，本发明公开的一种气体稀释采样接头，包括呈管状结构的壳体2，通过螺纹与壳体2顶部、底部连接的前盖1和后盖3，设置在前盖1上的进气口9，设置在后盖3上的出气口14，还包括设置在壳体2内部且与壳体2同轴心的采样柱11，环绕在采样柱11外侧设置的用于形成干净空气的过滤模块7，可拆卸设置在壳体2内部上侧的用于将采样气分流至采样柱11和过滤模块7的第一多孔隔板6，设置在采样柱11上部的多孔纤维柱13，设置在采样柱11下部且与多孔纤维柱13连接的样气采样孔12，以及设置在壳体2内部下侧的用于导通采样气与干净空气的第二多孔隔板10。As shown in Figures 1-3, a gas dilution sampling joint disclosed by the present invention includes a shell 2 with a tubular structure, a front cover 1 and a back cover 3 connected to the top and bottom of the shell 2 through threads. The air inlet 9 on the cover 1, the air outlet 14 provided on the back cover 3, also include a sampling column 11 provided inside the housing 2 and coaxial with the housing 2, and surrounding the sampling column 11. In order to form the filter module 7 of clean air, the first porous partition 6 disposed on the upper side of the interior of the housing 2 for diverting the sampling gas to the sampling column 11 and the filter module 7 is detachably provided. The porous fiber column 13, the sample gas sampling hole 12 provided at the lower part of the sampling column 11 and connected to the porous fiber column 13, and the second porous partition provided on the lower side of the interior of the housing 2 for conducting the sample gas and clean air. Plate 10.
本发明在所述前盖1与第一多孔隔板6形成的腔体中设置有粗滤模块15，用于滤除采样气中灰尘、油份等颗粒物，优选地，所述粗滤模块15为烧结PP纤维滤芯；所述孔纤维柱13用于滤除采样气中的细小颗粒，防止颗粒物进入样气采样孔12影响采样气的稀释比例。The present invention is provided with a coarse filter module 15 in the cavity formed by the front cover 1 and the first porous partition 6 for filtering out dust, oil and other particulate matter in the sampled gas. Preferably, the coarse filter module 15 is a sintered PP fiber filter element; the hole fiber column 13 is used to filter out fine particles in the sample gas and prevent particles from entering the sample gas sampling hole 12 and affecting the dilution ratio of the sample gas.
本发明的过滤模块7包括从上至下依次设置且通过O型圈8密封连接的填充有高锰酸钾活性氧化铝柱与碱性煤质活性炭混合物的第一过滤模块71、填充有由无纺密纸制成的精滤滤芯的第二过滤模块72、填充有钯催化氧化铝颗粒的第三过滤模块73、填充有高碘值的椰壳活性炭颗粒的第四过滤模块74，在采样气经过除杂质、脱氯、除臭等一系列净化处理之后，形成干净的空气，用于稀释样气采样孔12排出的采样气；所述第一过滤模块71为环状盒体，且盒体的上端面和下端面为多孔结构，所述第二过滤模块72、第三过滤模块73、第四过滤模块74的结构与第一过滤模块71相同。The filtration module 7 of the present invention includes a first filtration module 71 filled with a mixture of potassium permanganate activated alumina columns and alkaline coal-based activated carbon, which is arranged sequentially from top to bottom and sealedly connected through an O-ring 8. The second filter module 72 of the fine filter element made of spun dense paper, the third filter module 73 filled with palladium catalyzed alumina particles, and the fourth filter module 74 filled with coconut shell activated carbon particles with high iodine value, are used in the sampled gas. After a series of purification processes such as impurity removal, dechlorination, and deodorization, clean air is formed for diluting the sampling gas discharged from the sample gas sampling hole 12; the first filter module 71 is an annular box, and the box The upper end surface and the lower end surface are porous structures, and the structures of the second filter module 72 , the third filter module 73 , and the fourth filter module 74 are the same as the first filter module 71 .
本发明在所述前盖1与第一多孔隔板6之间设置有压紧弹簧5，所述压紧弹簧5位于粗滤模块15与壳体2内侧壁形成的空隙中，在前盖1通过螺纹与壳体2顶部连接时，会通过压紧弹簧5向下挤压第一多孔隔板6，使各个过滤模块7紧密接触，再配合O型圈8的作用，达到压紧密封过滤模块7的目的，在利用O型圈8连接两过滤模块时，其中一个过滤模块底部内侧、外侧均通过O型圈8分别与另一个过滤模块顶部内侧、外侧对应连接。The present invention is provided with a compression spring 5 between the front cover 1 and the first porous partition 6. The compression spring 5 is located in the gap formed by the coarse filter module 15 and the inner wall of the housing 2. 1 When connected to the top of the housing 2 through threads, the first porous partition 6 will be pressed downward through the compression spring 5, so that each filter module 7 is in close contact, and combined with the action of the O-ring 8, a compression seal is achieved The purpose of the filter module 7 is that when the O-ring 8 is used to connect two filter modules, the inner and outer sides of the bottom of one filter module are respectively connected to the inner and outer sides of the top of the other filter module through the O-ring 8.
进一步的，所述第二多孔隔板10与后盖3形成的腔体中设置有压力传感器4，用于检测腔体的气体压力，及时获知接头的工作情况，防止接头内部堵塞。Furthermore, a pressure sensor 4 is provided in the cavity formed by the second porous partition 10 and the back cover 3 for detecting the gas pressure of the cavity, promptly learning the working conditions of the joint, and preventing internal blockage of the joint.
为了便于观察过滤模块7内填充的滤料的使用情况，本发明将所述壳体2采用透明材料制成，或者在所述壳体2上设有透明的观察带，及时获知滤料的使用情况，方便及时维护更换，由于第一多孔隔板6可拆卸地连接在壳体2内部，在更换滤料时取出第一多孔隔板6即可更换，方便快捷。In order to facilitate the observation of the use of the filter material filled in the filter module 7, the present invention makes the housing 2 made of transparent material, or is provided with a transparent observation belt on the housing 2, so as to know the use of the filter material in time. This facilitates timely maintenance and replacement. Since the first porous partition 6 is detachably connected inside the housing 2, when replacing the filter material, the first porous partition 6 can be removed and replaced, which is convenient and fast.
气体稀释采样接头的使用方法如下：How to use the gas dilution sampling connector is as follows:
(1)在采样气经过进气口进入壳体内部之后，经过粗滤模块滤除采样气中的灰尘、油份颗粒物，采样气在经过第一多孔隔板之后被分成两部分，一部分流入过滤模块中，另一部分流入采样柱中；(1) After the sampling gas enters the interior of the housing through the air inlet, it passes through the coarse filter module to filter out dust and oil particles in the sampling gas. After passing through the first porous partition, the sampling gas is divided into two parts, and one part flows into In the filter module, the other part flows into the sampling column;
(2)在过滤模块中，采样气在经过多级过滤之后，形成干净的空气进入第二多孔隔板与后盖形成的腔体中；(2) In the filter module, after multi-stage filtration, the sampled gas forms clean air and enters the cavity formed by the second porous partition and the back cover;
(3)同时，进入采样柱中的采样气在多孔纤维柱中过滤掉细小的颗粒物，最后由样气采样孔进入第二多孔隔板与后盖形成的腔体中；(3) At the same time, the sample gas entering the sampling column filters out fine particles in the porous fiber column, and finally enters the cavity formed by the second porous partition and the back cover through the sample gas sampling hole;
(4)在该腔体中，空气与采样气按照一定比例混合，其中，稀释的比例根据样气采样孔的尺寸确定，达到稀释采样气的目的，最后将稀释后的采样气通过出气口排出。(4) In this cavity, air and sampling gas are mixed according to a certain ratio. The dilution ratio is determined according to the size of the sample gas sampling hole to achieve the purpose of diluting the sampling gas. Finally, the diluted sampling gas is discharged through the air outlet. .
本发明主要针对一些高浓度污染气体环境中的采样要求，通过固定比例稀释的方式直接将采样气进行稀释，再送入检测设备进行检测，将气体的稀释功能集成在采样接头上，提高了使用的方便性，不需要额外增加配件，降低了成本，且采样接头的结构简单、体积小、模块化程度高、易于维护。This invention is mainly aimed at the sampling requirements in some high-concentration polluted gas environments. It directly dilutes the sampled gas through a fixed proportion dilution method, and then sends it to the detection equipment for detection. The gas dilution function is integrated on the sampling joint, which improves the use of gas. It is convenient, does not require additional accessories, reduces costs, and the sampling connector has a simple structure, small size, high degree of modularity, and easy maintenance.
上述实施例仅为本发明的优选实施方式之一，不应当用于限制本发明的保护范围，但凡在本发明的主体设计思想和精神上作出的毫无实质意义的改动或润色，其所解决的技术问题仍然与本发明一致的，均应当包含在本发明的保护范围之内。The above embodiment is only one of the preferred embodiments of the present invention and should not be used to limit the scope of protection of the present invention. Any modifications or embellishments without substantial significance made in the main design ideas and spirit of the present invention will not solve the problem. If the technical problems are still consistent with the present invention, they shall be included in the protection scope of the present invention.
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