CN211823493U

CN211823493U - Intelligent automatic drying and nitrogen filling device for photoelectric products

Info

Publication number: CN211823493U
Application number: CN201922391798.8U
Authority: CN
Inventors: 彭文俊; 杨洪英
Original assignee: Nanjing Ouyixuan Photoelectric Technology Co ltd
Current assignee: Nanjing Ouyixuan Photoelectric Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-30
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses an automatic drying of intelligence photoelectric product and fill nitrogen gas device relates to photoelectric product maintenance technical field, including the nitrogen gas jar that needs carry on drying and fill the photoelectric product of nitrogen and be used for providing nitrogen gas, photoelectric product is provided with the air inlet that fills nitrogen gas and is used for carminative gas outlet, the top end of giving vent to anger of nitrogen gas jar is provided with first pipeline, be provided with check valve and aspiration pump on the first pipeline, gas outlet sealing connection has the second pipeline, be provided with stop valve and vacuum pump on the second pipeline, photoelectric product's inner chamber is provided with baroceptor and humidity transducer, the outer wall of nitrogen gas jar is provided with the controller, the input and the baroceptor and the humidity transducer electric connection of controller, the output and the check valve of controller, the aspiration pump, stop valve and vacuum pump electric connection. The utility model discloses can dry and fill nitrogen to the photoelectric product inner chamber through reasonable project organization and operation flow to guarantee the normal work of photoelectric product.

Description

Intelligent automatic drying and nitrogen filling device for photoelectric products

Technical Field

The utility model relates to a photoelectric product maintenance technical field, in particular to automatic drying of intelligence photoelectric product and nitrogen filling device.

Background

The nitrogen is a gas close to inertia, and the photoelectric product is filled with the nitrogen, so that the nitrogen can replace some expensive inert gases, when the content of the nitrogen is extremely high or the purity of the nitrogen is very high, the metabolism and the aging degree of organisms or most materials can be weakened, the oxidation process of metal and financial materials can be slowed down, and the nitrogen has a mildew-proof effect. In the photoelectric product, if the interior is filled with common gas components, moisture and fungi in the interior can be stored in the lens body, and hypha or mildew can grow in the interior of the photoelectric product once the temperature is low and the humidity is proper.

But when nitrogen gas is full of, because nitrogen gas unique alleviating oxidation, inside metalwork is difficult for rustting, even can not produce the corruption to inside waterproof rubber ring. In addition, in daily air, the specific gravity of water vapor in the air is not small, when the air temperature is low, water in the air can be converted into liquid from gas state and is combined on the lens, and the normal work of the photoelectric product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic drying of intelligence photoelectric product and fill nitrogen gas device, main aim at can be through reasonable project organization and operation flow, carry out the drying and fill nitrogen to the photoelectric product inner chamber to guarantee the normal work of photoelectric product.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent automatic drying and nitrogen filling device for photoelectric products comprises a photoelectric product which needs to be dried and filled with nitrogen and a nitrogen tank for providing nitrogen, the photoelectric product is provided with an air inlet for filling nitrogen and an air outlet for exhausting air, the air outlet end at the top of the nitrogen tank is provided with a first pipeline, and one end of the first pipeline, which is far away from the nitrogen tank, is communicated with the air inlet, the first pipeline is provided with a one-way valve and an air pump, the air outlet is hermetically connected with a second pipeline, a stop valve and a vacuum pump are arranged on the second pipeline, an air pressure sensor and a humidity sensor are arranged in the inner cavity of the photoelectric product, a controller is arranged on the outer wall of the nitrogen tank, the input of controller and baroceptor and humidity transducer electric connection, the output and the check valve of controller, aspiration pump, stop valve and vacuum pump electric connection.

Preferably, the inner cavity of the photoelectric product is provided with a metal mesh, and the inner cavity of the metal mesh is provided with a solid water-absorbing reagent for absorbing water vapor permeating into the photoelectric product and drying the air environment of equipment in the inner cavity of the photoelectric product.

Preferably, the controller comprises a signal input module, an a/D conversion module, a signal comparison module, a D/a conversion module, a signal output module and a data input storage module.

Preferably, the data input storage module comprises a set of humidity values for comparison with the humidity sensor and three sets of air pressure values for comparison with the air pressure sensor.

Preferably, the set of humidity values for comparison with the humidity sensor is a critical value u for controlling the operation of the stop valve and the vacuum pump, and after the humidity value of the gas in the photovoltaic product reaches the critical value u, the stop valve and the vacuum pump operate to discharge the gas in the photovoltaic product and recharge dry nitrogen to replace the humid gas.

Preferably, the three sets of pressure values for comparison with the pressure sensor include a set of threshold value x for controlling the stop valve and the vacuum pump to operate, the threshold value x being greater than a standard pressure, a set of threshold value y for controlling the check valve and the suction pump to stop operating, the threshold value y being greater than the threshold value x, and a set of threshold value z for controlling the check valve and the suction pump to operate, the stop valve and the vacuum pump to stop operating, and the threshold value z being close to zero according to the actual bearing capacity of the photovoltaic product, under a normal condition, the pressure value of the photovoltaic product should not be less than y, if the pressure value in the photovoltaic product drops to x, gas in the photovoltaic product leaks, external gas enters to reduce the concentration of nitrogen gas in the leaking process, and at this time, gas in the photovoltaic product needs to be discharged to make the pressure value in the photovoltaic product reach z, the vacuum is approached within the bearable range of the photoelectric product, so that the original gas is discharged as much as possible, and the nitrogen is refilled to ensure that the concentration of the nitrogen is at a higher level.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a reasonable structural design and tube coupling, and to the controller to the check valve, the stop valve, when aspiration pump and vacuum pump are controlled, through baroceptor and humidity transducer in to the photoelectric product upper limit value u of inner chamber humidity, judge photoelectric product inner chamber gas leakage and need fill the atmospheric pressure value x of nitrogen again, the photoelectric product inner chamber stops after filling nitrogen to continue to fill the atmospheric pressure value y (y > x) of nitrogen and photoelectric product 1 and the photoelectric product can bear and be close vacuous atmospheric pressure value z and carry out reasonable design when carrying out the evacuation operation, reasonable work flow, accomplish dry nitrogen filling operation, guarantee the normal work of photoelectric product.

Drawings

FIG. 1 is a flow chart of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is an electrical connection diagram of the controller of the present invention.

In the figure: 1-a photovoltaic product; 2-nitrogen tank; 3-an air inlet; 4-air outlet; 5-a first conduit; 6-a one-way valve; 7-an air pump; 8-a second conduit; 9-a stop valve; 10-a vacuum pump; 11-a barometric pressure sensor; 12-a humidity sensor; 13-a controller; 1301-a signal input module; 1302-a/D conversion module; 1303-signal comparison module; 1304-D/A conversion module; 1305-a signal output module; 1306-data input storage module; 14-metal mesh.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The intelligent automatic drying and nitrogen filling device for the photoelectric product comprises a photoelectric product 1 which needs to be dried and filled with nitrogen and a nitrogen tank 2 used for providing nitrogen, wherein the photoelectric product 1 is provided with an air inlet 3 for filling with nitrogen and an air outlet 4 for exhausting, a first pipeline 5 is arranged at the air outlet end of the top of the nitrogen tank 2, one end, far away from the nitrogen tank 2, of the first pipeline 5 is communicated with the air inlet 3, the first pipeline 5 is provided with a one-way valve 6 and an air pump 7, the air outlet 4 is hermetically connected with a second pipeline 8, the second pipeline 8 is provided with a stop valve 9 and a vacuum pump 10, an inner cavity of the photoelectric product 1 is provided with an air pressure sensor 11 and a humidity sensor 12, an inner cavity of the photoelectric product 1 is provided with a metal net 14, and an inner cavity of the metal net 14 is provided with a solid water absorbing reagent, the device is used for absorbing moisture permeating into the photoelectric product 1 and drying the air environment of equipment in the inner cavity of the photoelectric product 1, the controller 13 is arranged on the outer wall of the nitrogen tank 2, the input end of the controller 13 is electrically connected with the air pressure sensor 11 and the humidity sensor 12, the output end of the controller 13 is electrically connected with the one-way valve 6, the air suction pump 7, the stop valve 9 and the vacuum pump 10, the controller 13 comprises a signal input module 1301, an A/D conversion module 1302, a signal comparison module 1303, a D/A conversion module 1304, a signal output module 1305 and a data input storage module 1306, the data input storage module 1306 comprises a group of humidity values used for comparing with the humidity sensor 12 and three groups of air pressure values used for comparing with the air pressure sensor 11, the group of humidity values used for comparing with the humidity sensor 12 is a critical value u for controlling the stop valve 9 and the vacuum pump 10 to work, after the humidity value of the gas in the photoelectric product 1 reaches a critical value u, the stop valve 9 and the vacuum pump 10 work to discharge the gas in the photoelectric product 1, and dry nitrogen is refilled to replace the wet gas, the three sets of pressure values for comparison with the pressure sensor 11 include a set of critical value x for controlling the stop valve 9 and the vacuum pump 10 to work, the critical value x is greater than a standard pressure, a set of critical value y for controlling the check valve 6 and the air pump 7 to stop working, the critical value y is greater than the critical value x, a set of critical value z for controlling the check valve 6 and the air pump 7 to work, the stop valve 9 and the vacuum pump 10 to stop working, the critical value z is close to zero according to the actual bearing capacity of the photoelectric product 1, under normal conditions, the pressure value of the photoelectric product 1 should not be less than y, if the pressure value in the photoelectric product 1 drops to x, the gas in the photoelectric product 1 leaks, and the external gas enters the photoelectric product 1 to reduce the concentration of the nitrogen in the process of leakage, so that the gas in the photoelectric product 1 needs to be discharged, the pressure value in the photoelectric product 1 reaches z, and the gas is close to vacuum in a range which can be borne by the photoelectric product 1, so that the original gas is discharged as much as possible, and the nitrogen is refilled to ensure that the concentration of the nitrogen is at a higher level.

A specific application of this embodiment is that, the specific structural design and the pipeline connection of the present invention are connected as shown in fig. 2 of the attached drawings of the specification, when the check valve 6, the air pump 7, the stop valve 9 and the vacuum pump 10 are controlled by the controller 13, and the inner cavity of the photovoltaic product 1 is dried and filled with nitrogen, first, the upper limit value u of the humidity of the inner cavity in the photovoltaic product 1 is input to the data input storage module 1306, the pressure value x of nitrogen needed to be refilled for determining the gas leakage in the inner cavity of the photovoltaic product 1 is determined, the pressure value y (y > x) for stopping refilling nitrogen after the inner cavity of the photovoltaic product 1 is refilled with nitrogen and the pressure value z which can be borne by the photovoltaic product 1 and is close to vacuum during the vacuum pumping operation of the photovoltaic product 1, wherein the pressure value x is greater than a standard atmospheric pressure, when the pressure in the inner cavity of the photovoltaic product 1 is greater than the atmospheric pressure, the tendency that the internal nitrogen seeps out is much greater than, and because the nitrogen has the characteristic of poor permeability, the permeability of the nitrogen is only thirty to forty percent of the conventional air permeability, so that the nitrogen loss speed can be reduced.

When the photoelectric product 1 is subjected to drying and nitrogen filling operation, as shown in figure 1 of the attached drawing of the specification, when the measured value of the humidity sensor 12 is not more than u and the measured value of the air pressure sensor 11 is not less than x, the check valve 6 and the stop valve 9 are closed, and the air suction pump 7 and the vacuum pump 10 do not work; when the measured value of the humidity sensor 12 is greater than u or the measured value of the air pressure sensor 11 is less than x, the stop valve 9 is opened, the vacuum pump 10 works, the gas in the inner cavity of the photoelectric product 1 is pumped out through the second pipeline 8, until the measured value of the air pressure sensor 11 is less than z, the stop valve 9 is closed, the vacuum pump 10 stops working, the check valve 6 is opened, the air pump 7 works, the nitrogen in the nitrogen tank 2 is led into the inner cavity of the photoelectric product 1 through the first pipeline 5, until the measured value of the air pressure sensor 11 is greater than y, the check valve 6 is closed, the air pump 7 stops working, and the drying or nitrogen filling operation is completed.

When the check valve 6, the stop valve 9, the air suction pump 7 and the vacuum pump 10 are controlled, measured data are input into the controller 13 through the signal input module 1301 by the air pressure sensor 11 and the humidity sensor 12, the input signals are converted into electric signals through the A/D conversion module 1302, the signals and data input into the storage module 1306 are compared and analyzed through the comparison module 1303, then the electric signals are converted through the D/A conversion module 1304, and finally the signals are fed back to the check valve 6, the stop valve 9, the air suction pump 7 and the vacuum pump 10 through the signal output module 1305. Wherein the metal mesh 14 that the inner chamber of photoelectric product 1 set up is used for holding solid absorbent, absorbs the aqueous vapor that permeates among the photoelectric product 1, and the air circumstance of equipment in the dry photoelectric product 1 inner chamber reduces because of humidity surpasss the operation that the u value carries out nitrogen again, reduce cost.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an automatic drying of intelligence photoelectric product and fill nitrogen gas device, including need dry and fill nitrogen gas jar (2) of photoelectric product (1) and being used for providing nitrogen gas of nitrogen gas, photoelectric product (1) is provided with air inlet (3) and be used for carminative gas outlet (4) of filling nitrogen gas, its characterized in that: a first pipeline (5) is arranged at the top gas outlet end of the nitrogen tank (2), one end of the first pipeline (5) far away from the nitrogen tank (2) is communicated with the gas inlet (3), the first pipeline (5) is provided with a one-way valve (6) and an air pump (7), the air outlet (4) is hermetically connected with a second pipeline (8), a stop valve (9) and a vacuum pump (10) are arranged on the second pipeline (8), an air pressure sensor (11) and a humidity sensor (12) are arranged in the inner cavity of the photoelectric product (1), the outer wall of the nitrogen tank (2) is provided with a controller (13), the input end of the controller (13) is electrically connected with the air pressure sensor (11) and the humidity sensor (12), the output end of the controller (13) is electrically connected with the one-way valve (6), the air pump (7), the stop valve (9) and the vacuum pump (10).

2. The intelligent automatic drying and nitrogen charging device for photoelectric products of claim 1, wherein: the inner cavity of the photoelectric product (1) is provided with a metal mesh (14), and the inner cavity of the metal mesh (14) is provided with a solid water-absorbing reagent.

3. The intelligent automatic drying and nitrogen charging device for photoelectric products of claim 1, wherein: the controller (13) comprises a signal input module (1301), an A/D conversion module (1302), a signal comparison module (1303), a D/A conversion module (1304), a signal output module (1305) and a data input storage module (1306).

4. The intelligent automatic drying and nitrogen charging device for photoelectric products of claim 3, wherein: the data input storage module (1306) includes one set of humidity values for comparison with the humidity sensor (12) and three sets of barometric pressure values for comparison with the barometric pressure sensor (11).

5. The intelligent automatic drying and nitrogen charging device for photoelectric products of claim 4, wherein: the set of humidity values for comparison with the humidity sensor (12) is a critical value u for controlling the operation of the shut-off valve (9) and the vacuum pump (10).

6. The intelligent automatic drying and nitrogen charging device for photoelectric products of claim 4, wherein: the three groups of air pressure values used for being compared with the air pressure sensor (11) comprise a group of critical value x for controlling the stop valve (9) and the vacuum pump (10) to work, wherein the critical value x is larger than a standard air pressure, a group of critical value y for controlling the check valve (6) and the air pump (7) to stop working, the critical value y is larger than the critical value x, and a group of critical value z for controlling the check valve (6) and the air pump (7) to work, the stop valve (9) and the vacuum pump (10) to stop working, and the critical value z is close to zero according to the actual bearing capacity of the photoelectric product (1).