CN113155252B - A weighing system with deoxygenation function and cyclic dehumidification - Google Patents

Abstract

The invention discloses a weighing system with deoxidizing function and cyclic dehumidification, comprising: a weighing device, a humidity control processing system, and a deoxidizing system; the weighing device comprises: an operation box for performing weighing operations, There are several uniform flow deceleration devices in the operation box; after the gas in the operation box is processed by the humidity control processing system and the deaerator system, it is returned to the operation box through the uniform flow deceleration device; the humidity control processing system includes: a plurality of alternating A dehumidification chamber used for recycling, the dehumidification chamber includes: a dehumidification adsorbent, a gas delivery switch, a heating concentric tube for heating the dehumidification adsorbent, a dehumidification chamber humidity detector for detecting the gas humidity at the outlet of the dehumidification chamber; a humidity control processing system When processing gas, the gas delivery switch of one of the dehumidification chambers is turned on. When the detection value of the humidity detector in the dehumidification chamber reaches the set value, the heating concentric tube starts to heat, the gas delivery switch is turned off, and the gas to be treated enters the other dehumidification chamber.

Description

A weighing system with deoxygenation function and cyclic dehumidification

technical field

The invention relates to the field of weighing technology, in particular to a weighing system with deoxygenation function and cyclic dehumidification.

Background technique

The shortage of fresh water resources is still one of the problems that need to be solved urgently in the world today. Solar air water extraction is a method to obtain fresh water by using adsorbents to absorb water vapor in the air and desorption by solar energy. In the research of solar air water intake, the performance of the adsorbent under the open adsorption condition has a crucial impact. In the adsorption experiment and performance test, the adsorbent used in the air water intake device Therefore, when the adsorbent is sampled and weighed, and its adsorption performance is tested, there is a high requirement for the humidity of the environment. We want the humidity to be as low and constant as possible when sampling and weighing samples.

In the weighing operation of items in the laboratory, there are two types of items that are the most common. One is items that are easily deliquescent in the air, such as inorganic salts such as anhydrous calcium chloride, magnesium chloride and solid sodium hydroxide, which are very Deliquescence easily. The second category is the items that are easily oxidized. Some unstable alkane analogs at room temperature can react violently with oxygen, such as borane, silane, etc., as well as other common items that are easily oxidized such as sodium sulfite, ferrous sulfate , sodium thiosulfate, etc. These deliquescent items will seriously affect the weighing accuracy and accuracy during weighing, and the oxidizable items will oxidize during weighing, which will affect the chemical properties of the items and the precision and accuracy of weighing.

The published patents on dehumidification and oxygen-free weighing systems are: Chinese Patent Application Publication No. CN208872401U proposes a constant temperature and humidity weighing system with a dehumidification device, which forms an air flow through the rotation of the fan, and passes the air through the dehumidification device. The dehumidification effect is achieved by condensing the humidity in the medium, but there is a problem that the dehumidification effect is poor, and the influence of the rotation of the fan on the weighing accuracy is not considered.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a weighing system with a dry and low oxygen environment and a low impact of environmental airflow, so as to solve the problems existing in the above-mentioned solar water extraction research of adsorbent sampling and weighing; At the same time, the accuracy of weighing items that are prone to deliquescence is improved.

In order to achieve the above purpose, the present invention provides a weighing system with deoxidizing function and cyclic dehumidification, including: a weighing device, a humidity control processing system, and a deoxidizing system; the weighing device includes: The operation box for weighing operation is provided with several uniform flow deceleration devices; the gas in the operation box is processed by the humidity control processing system and the deaeration system, and then returned to the uniform flow deceleration device through the uniform flow deceleration device. into the operation box; the deaeration system includes: a deaeration pipe connected to the operation box and a nitrogen replacement device; the humidity control treatment system includes: a plurality of dehumidification chambers used alternately, the dehumidification The chamber includes: a dehumidification adsorbent that can be recycled after desorption of moisture, a heating concentric tube for heating the dehumidification adsorbent, a dehumidification chamber humidity detector for detecting the gas humidity at the outlet of the dehumidification chamber, and a gas delivery switch;

Optionally, when the humidity control processing system processes gas, the gas delivery switch of one of the dehumidification chambers is turned on, when the detection value of the humidity detector reaches the set value, the heating concentric tube starts to heat, and the gas delivery switch is turned off, The gas that does not meet the standard in the dehumidification chamber and the gas to be processed in the weighing device enter another dehumidification chamber.

Optionally, the inner tube of the concentric heating circular tube is in the shape of a mesh, and a blowing device is installed under the dehumidification chamber; when the heating concentric tube heats and evaporates the moisture in the adsorbent, the bottom blowing device blows upward, and the heated and evaporated water is discharged by the exhaust pipe. Out of the dehumidification chamber, the blower also speeds up the drying of the dehumidifying adsorbent.

Optionally, the uniform flow deceleration device includes: two sections of honeycomb airflow passages with different apertures.

Optionally, the two sections of honeycomb airflow channels with different apertures in the uniform flow deceleration device are divided into a primary channel and a secondary channel, and the cross sections of the primary channel and the secondary channel are both regular hexagons; The passages are divided into 19 secondary passages in the section near the inner side of the operation box, and the side lengths of the hexagonal cross-sections of the secondary passages are 1.5mm-2.3mm.

Optionally, the dehumidifying adsorbent is a composite adsorbent material of a hygroscopic salt and a porous matrix.

Optionally, the weighing system further includes: a plurality of air purification devices, and after the gas in the operation box is processed by the air purification devices, it is input into the deaerator pipe and the humidity control processing system; the air The interior of the purification device is filled with activated carbon, and the outlet of the air purification device is provided with a filter membrane.

Optionally, the filter membrane is a synthetic fiber filter paper or a polytetrafluoroethylene microporous membrane; the filter membrane is installed behind the activated carbon, and the air is initially purified by the activated carbon and then filtered through the filter membrane, which improves the purification effect. At the same time increase the service life of the filter membrane.

Optionally, the weighing system further includes: a shock absorbing device, and the shock absorbing device is arranged below the weighing device.

Optionally, there are multiple deaeration pipes, and the deaeration pipes are arranged in parallel.

Optionally, the deoxidizing tube is filled with a deoxidizing agent, the deoxidizing agent uses a molecular sieve as a carrier, and the surface of the molecular sieve is loaded with metal.

Optionally, the gas delivery switch is a solenoid valve.

Optionally, the weighing device further includes: an article placing box, the article placing box is arranged on the side of the operation box; the outer side of the article placing box, the operation box and the article placing box; The room has a sealed door.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The operation box of the present invention is provided with a uniform flow deceleration device, so that the humidity control processing system and the deoxygenation system evenly and slowly transport gas into the operation box, effectively reducing the influence of gas flow on the weighing of items;

(2) The weighing device of the present invention is independent of the humidity control processing system and the deoxidizing system, and the bottom of the weighing device is provided with a shock absorbing device, which can effectively reduce the machine vibration symmetry of the humidity control processing system and the deoxidizing system. the effect of the measuring device;

(3) The present invention dehumidifies the operation box alternately through three interconnected dehumidification chambers, so as to meet the environmental requirements of dryness and low humidity when weighing items.

Description of drawings

Fig. 1 is the structural representation of the weighing system with deoxygenation function and cyclic dehumidification simultaneously;

2 is a schematic cross-sectional view of a primary channel and a secondary channel of the present invention;

3 is a flow chart of the route principle of the humidity control processing system of the present invention;

Fig. 4 is the longitudinal sectional schematic diagram of the dehumidification chamber of the present invention;

5 is a schematic cross-sectional view of a dehumidification chamber of the present invention;

Fig. 6 is the route principle flow chart of the deaeration system of the present invention;

FIG. 7 is an enlarged schematic view of the structure at A in FIG. 1 of the present invention.

In the figure: 1-Item placement box; 2-Insulation sealing door of operation box; 3-Insulation sealing door of placing box; 4-Shock absorption device; Telescopic pulley; 8- Uniform flow deceleration device; 9- Operation box; 10- Operating hand hole; 11- Primary channel; 12- High precision weighing balance; 13- Operation box temperature and humidity measuring device; 14- Air purification device; 15-solid activated carbon; 16-filter membrane; 17-secondary channel; 18-dehumidification device shell; 19-exhaust pipe; 20-dehumidification chamber humidity detector; 21-heating concentric pipe; 22-dehumidification adsorbent; 23 -Blowing device; 24-Gas pressure gauge; 25-Nitrogen cylinder clamp; 26-Nitrogen cylinder; 27-Nitrogen cylinder bracket; 28-Gas flow rate adjustment recorder; 29-Deoxygenation tube; 30-Oxygen content detector ; 31- the first dehumidification chamber; 32- the second dehumidification chamber; 33- the third dehumidification chamber; 34- shaft sliding hole.

Detailed ways

The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1-FIG. 6, the present invention provides a weighing system with deoxidizing function and cyclic dehumidification, including: weighing device, humidity control processing system, and deoxidizing system; weighing device includes: In the operation box 9 for weighing operation, several uniform flow deceleration devices 8 are arranged in the operation box 9; after the gas in the operation box 9 is processed by the humidity control processing system and the deoxidation system, it is returned to the uniform flow deceleration device 8. into the operation box 9; the deaeration system includes: a deaeration pipe 29 connected to the operation box 9 and a nitrogen replacement device; the humidity control treatment system includes: a plurality of dehumidification chambers, the dehumidification chambers Recycled dehumidification adsorbent 22, heating concentric tube 21 for heating dehumidification adsorbent 22, dehumidification chamber humidity detector 20 for detecting gas humidity at the outlet of the dehumidification chamber, gas delivery switch; when the humidity control processing system processes gas , the gas delivery switch of one of the dehumidification chambers is turned on, when the detection value of the humidity detector reaches the set value, the heating concentric tube 21 starts to heat, the gas delivery switch is turned off, and the gas to be treated enters the other dehumidification chamber.

In the embodiment of FIG. 1, there are two uniform flow deceleration devices 8, which are respectively arranged on the side and the top of the operation box 9; wherein, the uniform flow deceleration device 8 on the side is controlled by a gas hose and a humidity control processing system and a deoxidizer. The pipes are communicated, and the uniform flow deceleration device 8 at the top is communicated with the nitrogen replacement device. As shown in FIG. 2 , the uniform flow deceleration device 8 includes: two honeycomb airflow passages with different apertures, the airflow passage near the outside of the operation box 9 has several primary passages 11 , and the airflow passage close to the inside of the operation box 9 has a plurality of primary passages 11 . Several secondary channels 17; the cross-sections of the primary channels 11 and the secondary channels 17 are all regular hexagons; each primary channel 11 is divided into 19 secondary channels 17 in the section close to the inner side of the operation box 9 , the side length of the hexagonal cross-section of the secondary channel 17 is 1.5mm-2.3mm, so that the gas output through the uniform flow deceleration device 8 is slow and uniform, and the influence of the gas flow on the weighing result is reduced.

As shown in FIG. 1 and FIG. 3 , the operation box 9 of the present invention is provided with an operation box temperature and humidity measuring device 13, an oxygen content detector, and a high-precision weighing balance 12 to monitor the temperature and humidity of the operation box 9 during weighing. and oxygen content; the operating box 9 of the present invention is provided with an operating hand hole 10, and the operating hand hole 10 is covered with operating gloves to facilitate the staff to operate the weighing balance, and a sealing ring is used between the operating gloves and the operating hand hole 10 Sealed to prevent the entry of outside air.

The weighing device of the present invention further comprises: an article placing box 1 placed beside the operation box 9, the article placing box 1 is used for placing articles, and the outer side of the article placing box 1 is provided with a placing box heat insulation sealing door 3 . Between the operation box 9 and the article placing box 1, there is an operation box heat-insulating and sealing door 2 to block the gas from the outside of the weighing system from entering the operation box 9 layer by layer.

Before the operator uses the weighing device to weigh the items, the dehumidification chamber in the humidity control processing system dehumidifies the operation box 9 . As shown in FIG. 3 , a dehumidification device is provided inside the dehumidification chamber, and the dehumidification adsorbent 22 is filled in the dehumidification device. In some embodiments, the dehumidification adsorbent 22 is a composite adsorbent material of hygroscopic salt and a porous matrix. The porous matrix can be It is silica gel, zeolite, graphene, and the hygroscopic salt can be magnesium chloride, calcium chloride, lithium chloride and other salts.

As shown in FIG. 4 and FIG. 5 , in some embodiments, the dehumidification chamber and the dehumidification device are horizontally arranged cylindrical shapes, and the heating concentric pipe 21 is arranged inside the dehumidification device and is concentric with the dehumidification device housing 18 , so that the dehumidification device The drying degree of the dehumidifying adsorbent 22 inside is the same, and the adsorbent will not be damaged by local drying too fast. Preferably, the heating concentric tubes 21 are in the shape of a mesh, which further balances the drying degree of the dehumidifying adsorbent 22 as a whole.

The dehumidifying device of the present invention further includes: a blowing device 23 arranged below the dehumidifying adsorbent 22, and an exhaust duct 19 communicating with the outside of the dehumidifying chamber; the blowing device 23 is used to speed up the evaporation of water in the adsorbent, and the exhausting device 23 The air duct 19 is used to discharge the evaporated moisture out of the dehumidification chamber.

Wherein, optionally, the heating concentric tube 21 inside the dehumidification chamber and the humidity detector 20 of the dehumidification chamber, the solenoid valve and the air pump outside the dehumidification chamber of the present invention can be connected to the computer, and the user can set the threshold value of the humidity detector in the computer , when the value of the humidity detector is higher than the threshold value, the computer controls the electromagnetic valve so that the gas will no longer pass into the dehumidification chamber, and the heating concentric pipe 21 is opened to heat the adsorbent.

In the embodiment of FIG. 3 , the humidity control processing system includes: three dehumidification chambers, respectively a first dehumidification chamber 31 , a second dehumidification chamber 32 , and a third dehumidification chamber 33 ; the first dehumidification chamber 31 and the second dehumidification chamber 32 , and the third dehumidification chamber 33 is communicated with each other and is all communicated with the weighing device, the outside of the three dehumidification chambers is provided with an air pump (not shown in the figure) and a solenoid valve, and the workflow of the humidity control processing system is as follows:

(1) Open the solenoid valves V1, V2, V10, the other solenoid valves are in a closed state, and the air pump makes the gas in the weighing device enter the first dehumidification chamber 31;

(2) After the dehumidification adsorbent 22 in the first dehumidification chamber 31 is saturated with adsorption, close V10, V2, open V3, V7, V5, V16, and at the same time, the heating concentric tube 21 in the first dehumidification chamber 31 starts to heat, evaporation adsorption The moisture in the agent, the blowing device 23 blows upward, and the water vapor is discharged from V16. At this time, the air pump makes the weighing device and the outside humidity of the first dehumidifying chamber 31 dehumidifying device not up to the standard gas into the second dehumidifying chamber 32 for dehumidification;

(3) Similarly, when the adsorption of the second dehumidification chamber 32 reaches saturation, close V3, V7, V5, open V4, V8, V6, V15, and at the same time the heating concentric tube 21 in the second dehumidification chamber 32 starts to heat, evaporation adsorption The moisture in the agent, the blowing device 23 blows upward, and the water vapor is discharged from V15, and the air pump makes the weighing device and the second dehumidifying chamber 32 dehumidifying device external humidity not up to the standard gas into the third dehumidifying chamber 33 for dehumidification;

(4) When the adsorption of the third dehumidification chamber 33 reaches saturation, the adsorbent in the first dehumidification chamber 31 has been evaporated and dried by the concentric heating circular tube, and can be put into work again. At this time, close V4, V8, V6, V16, and open V10 , V2, V14, V9, the heating concentric tube 21 in the third dehumidification chamber 33 starts to heat, evaporates the moisture in the adsorbent, the blowing device 23 blows upward, the water vapor is discharged from V14, and the air pump makes the weighing device and the third dehumidifier The gas whose external humidity of the dehumidifying device in the chamber 33 does not meet the standard enters the first dehumidifying chamber 31 for dehumidification. The three dehumidification chambers carry out humidity treatment through the above cycle.

If three dehumidification chambers need to work at the same time, close V2, V5, V7, V8, V9, V14, V15, V16, open other solenoid valves, and the gas in the weighing device will pass through the three dehumidification chambers in turn to be dehumidified and then flow back to the weighing device middle.

As shown in FIG. 6 , there are multiple deaerator pipes 29 in the present invention, and the deaerator pipes 29 are arranged in parallel. When a problem occurs in one deaerator pipe 29, the gas can enter the other deaerator pipes 29 for deoxygenation; The deoxidizer tube 29 is a pressure-resistant transparent glass tube, and the deoxidizer is filled inside the deoxidizer tube 29. The user can observe the change of the color of the deoxidizer after oxidation to judge the consumption of the deoxidizer; the deoxidizer carrier is a molecular sieve, and its surface load Active metal, the active metal is copper, cobalt, iron, nickel, manganese, etc.

According to the present invention, an air purification device 14 is provided between the weighing device and the humidity control processing system, and between the weighing device and the deaerator pipe 29, and the air purification device 14 is used to filter large particles of dust in the air of the weighing device; The interior of the air purification device 14 is provided with solid activated carbon 15, and the outlet is provided with a filter membrane 16. After preliminary purification by the activated carbon, the gas is filtered and discharged through the filter membrane 16, which ensures the purification effect and prolongs the service life of the adsorption membrane.

The filter membrane 16 is a synthetic fiber filter paper or a polytetrafluoroethylene (PTFE) microporous membrane, which has the advantages of small pore size, large air permeability, and high chemical stability. While filtering large particles of dust in the air, it can keep the air normal. It flows into the humidity control processing system and the deaeration pipe 29 .

The nitrogen replacement device of the present invention is connected to the top of the weighing device, and the nitrogen replacement device transports nitrogen into the operation box 9 through the uniform flow deceleration device 8; the nitrogen replacement device includes: a nitrogen cylinder 26, and the nitrogen cylinder 26 passes through the nitrogen cylinder The fixing clip 25 is fixed to the nitrogen cylinder bracket 27, and the nitrogen cylinder 26 is provided with a solenoid valve, a gas pressure gauge 24 and a gas flow rate adjustment recorder 28 to monitor the nitrogen amount delivered by the nitrogen cylinder 26 to the weighing device.

The deoxygenation system of the present invention, the humidity control processing system and the weighing device are communicated with each other through a gas hose.

Please continue to refer to FIG. 1 , the deoxidizing tube 29 and the humidity control processing system are installed in the housing 5 of the deoxidizing humidity control processing system, and a shock absorbing device is provided between the weighing device and the housing 5 of the deoxidizing humidity control processing system 4. The shock absorbing device 4 includes: a sponge and a shock absorbing spring, the shock absorbing spring is arranged at the bottom of the sponge; the shock absorbing device 4 reduces the vibration of the external machine of the weighing device during operation, so as to improve the weighing of the item. accuracy.

As shown in FIG. 7 , the weighing system with deoxidizing function and cyclic dehumidification of the present invention is provided with a base 6 below, and a telescopic pulley 7 is installed at the bottom of the base 6. The installation method of the telescopic pulley 7 is as follows As shown in the patent CN212757172U, the telescopic pulley 7 is moved linearly in the shaft sliding hole 34 during use, so that the telescopic pulley 7 is extended outside the base 6 or stored in the base 6, which facilitates the transportation of the entire weighing system.

As shown in Figure 3, the weighing system of the present invention with deoxidizing function and cyclic dehumidification weighing easy deliquescence items is as follows:

(1) Before starting the weighing, open the heat insulation sealing door 3 of the placing box, place the sealed item in the item placing box 1, then close the heat insulation sealing door 3 of the placing box, and open the heat insulation sealing door 2 of the operation box;

(2) Open the solenoid valve V1, the gas in the weighing device passes through the air purification device 14 and is dehumidified according to the work flow of the above-mentioned humidity control processing system, and then returns to the weighing device through the uniform flow deceleration device 8, waiting for the weighing device When the humidity inside meets the weighing requirements of the item, close the humidity control processing system for fine weighing operation.

As shown in Figure 6, the weighing system of the present invention with deoxidizing function and cyclic dehumidification is as follows:

(1) is identical with the above-mentioned step (1) of weighing easily deliquescent articles;

(2) Open the solenoid valves V11 and V12, close the solenoid valve V13, the nitrogen replacement device fills the weighing device with nitrogen, and the original gas in the weighing device is discharged through V12; The quantity detector 30 checks the oxygen content in the operation box 9. If the oxygen content in the operation box 9 meets the weighing requirements of the article, the article can be weighed through the operation hand hole 10; if the oxygen content cannot meet the weighing requirement of the article If the item has more stringent requirements on the oxygen content of the weighing device, continue with the following steps;

(3) Close V12, open the solenoid valve V13, the gas in the weighing device enters the deoxidizer 29 through the air purification device 14, and when the oxygen content in the weighing device meets the weighing requirements of the article, close the nitrogen replacement device for fine Weighing operation.

While the content of the present invention has been described in detail by way of the above preferred embodiments, it should be appreciated that the above description should not be construed as limiting the present invention. Various modifications and alternatives to the present invention will be apparent to those skilled in the art upon reading the foregoing. Accordingly, the scope of protection of the present invention should be defined by the appended claims.

Claims (10)

1. The utility model provides a weighing system with but deoxidization function circulation dehumidification simultaneously which characterized in that includes: the device comprises a weighing device, a humidity control processing system and a deoxygenation system;

the weighing device includes: the operation box is used for carrying out weighing operation, and a plurality of uniform flow speed reducing devices are arranged in the operation box; after the gas in the operation box is treated by the humidity control treatment system and the oxygen removal system, the gas is returned into the operation box through the uniform flow speed reducing device;

the oxygen scavenging system comprises: the oxygen removal pipe and the nitrogen replacement device are connected with the operation box;

the humidity control processing system includes: a plurality of dehumidification chambers used alternately in cycles, the dehumidification chambers being in communication with each other; the dehumidifying chamber includes: the dehumidification device comprises a dehumidification adsorbent, a gas conveying switch, a heating concentric pipe for heating the dehumidification adsorbent, a dehumidification chamber humidity detector for detecting the humidity of gas at an outlet of a dehumidification chamber, and an exhaust pipeline for exhausting water vapor out of the dehumidification chamber; when the humidity control processing system processes gas, a gas delivery switch of one of the dehumidifying chambers is turned on, the gas to be processed enters the dehumidifying chamber, and the dehumidifying adsorbent adsorbs water vapor in the gas to be processed; when the detection value of the humidity detector reaches a set value, the heating concentric tube starts to heat, the gas conveying switch is closed, the heated and evaporated water vapor is discharged out of the dehumidification chamber through the exhaust pipeline, and the gas with the humidity not reaching the standard in the dehumidification chamber and the gas to be treated in the weighing device enter the other dehumidification chamber.

2. The weighing system with oxygen scavenging while being capable of cyclic dehumidification of claim 1, wherein the dehumidification chamber further comprises: the air blowing device is arranged below the dehumidifying adsorbent; when the heating concentric tube heats and evaporates the moisture in the dehumidifying adsorbent, the blowing device blows air to accelerate the drying of the dehumidifying adsorbent.

3. The weighing system with oxygen removal and simultaneously capable of cyclic dehumidification as claimed in claim 1, wherein said uniform flow deceleration means comprises: two honeycomb airflow channels with different apertures; the two sections of honeycomb airflow channels with different apertures are divided into a primary channel and a secondary channel, and the cross sections of the primary channel and the secondary channel are in regular hexagons; each primary channel is divided into 19 secondary channels at the section close to the inner side of the operation box, and the side length of the section hexagon of the secondary channels is 1.5mm-2.3 mm.

4. The weighing system with oxygen removal and simultaneously capable of cyclically dehumidifying as claimed in claim 1, wherein the dehumidifying adsorbent is a composite adsorbing material of hygroscopic salt and porous matrix.

5. The weighing system with oxygen scavenging while being capable of cyclic dehumidification of claim 1, further comprising: the air in the operation box is treated by the air purification devices and then is input into the oxygen removal pipe and the humidity control treatment system; the inside of air purification device is filled with active carbon, air purification device's export is equipped with filtration membrane.

6. The weighing system with the oxygen removal function and the cyclic dehumidification function as claimed in claim 5, wherein the filtering membrane is a synthetic fiber filter paper or a polytetrafluoroethylene microporous membrane, and the gas in the weighing device is purified by activated carbon and then filtered by the filtering membrane, so that the purifying effect is improved, and the service life of the filtering membrane is prolonged.

7. The weighing system with oxygen scavenging while being capable of cyclic dehumidification of claim 1, further comprising: and the damping device is arranged below the weighing device.

8. The weighing system with the oxygen removing function and the simultaneous cyclic dehumidification function as claimed in claim 1, wherein the number of the oxygen removing pipes is multiple, and the oxygen removing pipes are arranged in parallel; and a deoxidizer is filled in the deoxidizing pipe, the deoxidizer takes a molecular sieve as a carrier, and metal is loaded on the surface of the molecular sieve.

9. The weighing system with oxygen scavenging and simultaneously cyclic dehumidification of claim 1, wherein the gas delivery switch is a solenoid valve.

10. The weighing system with oxygen scavenging while being capable of cyclic dehumidification as claimed in claim 1, wherein said weighing means further comprises: the article placing box is arranged beside the operation box; and sealing doors are arranged on the outer side of the article placing box and between the operating box and the article placing box.

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