Condensing device for salt mist box

Abstract

The condensing device for the salt mist box comprises a demister and a condensing blocking net, an aerial fog input pipe is arranged on one side of the bottom of the demister, the demister is connected with the salt mist box through the aerial fog input pipe, a saline water drainage pipe is arranged on the other side of the bottom of the demister, an exhaust port is formed in the top of the demister, and the condensing blocking net is connected with the salt mist box through the saline water drainage pipe. The condensation blocking net is arranged in the demister, and the condensation blocking net is made of a plurality of layers of filter cotton; the condenser effectively solves the problem that a conventional condenser adopts cooling water to achieve complete liquefaction of salt mist gas in a heat exchange mode, and is simple in structure, low in cost and suitable for large-scale popularization.

Description

Technical Field

[0001] The invention relates to the field of salt spray treatment equipment, in particular to a condensing device for a salt spray box. Background Art

[0002] At present, salt spray chambers are essential testing equipment for many industrial enterprises. The gaseous salt spray generated during the salt spray test cannot condense, and will diffuse out of the salt spray chamber and corrode the surrounding metal equipment. Demisting of gaseous salt spray is a difficult problem to solve. The main reason is that Cl in the salt spray - Ions are highly corrosive. General metals, including aluminum alloys and stainless steel, cannot resist their corrosion. A slight leak of salt mist gas will cause corrosion of surrounding metal products and metal equipment. Existing salt mist demisting generally uses a condenser for condensation. However, since the condenser is generally a hollow structure, it is impossible to completely condense the salt mist gas, resulting in a small amount of condensed gas flowing into subsequent metal equipment. In addition, in order to improve the heat transfer and condensation effect, the condenser is generally made of metal. The metal material has poor corrosion resistance to salt mist and will gradually corrode.

[0003] Therefore, providing a corrosion-resistant salt spray condensation device becomes an urgent problem to be solved. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the present invention provides a condensing device for a salt spray chamber.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] A condensation device for a salt spray chamber, comprising a demister and a condensation barrier;

[0009] An aerosol input pipe is provided on one side of the bottom of the demister, the demister is connected to the salt spray chamber through the aerosol input pipe, a salt water drain pipe is provided on the other side of the bottom of the demister, and an exhaust port is provided on the top of the demister;

[0010] The condensation resistance net is arranged in the demister, and the condensation resistance net is made of multiple layers of filter cotton.

[0011] Preferably, a salt mist chamber is provided in the demister below the condensation resistance net, and the air pressure in the salt mist chamber is the same as the air pressure in the salt mist box.

[0012] Preferably, it further comprises a rotating mechanism, wherein the rotating mechanism comprises a connecting plate, a rotating shaft, a rotating motor, a lifting assembly and a gathering cylinder;

[0013] The connecting plates are provided with two groups, which are arranged oppositely on both sides of the condensation resistance net, and the rotating shaft is provided on one side of the outer wall of the connecting plate, and is rotatably connected to the inner wall of the defogger through the rotating shaft, and one of the rotating shafts is connected to the rotating motor;

[0014] The gathering cylinder is arranged below the condensation resistance net, and the gathering cylinder is connected to the lifting end of the lifting assembly. After the gathering cylinder is lifted upward, it is connected to the bottom of the condensation resistance net.

[0015] Preferably, the connecting plate is in the shape of a prism, the large end of the connecting plate is fixedly connected to the condensation resistance net, the connecting plate is connected to the rotating shaft through a telescopic assembly, a gathering channel corresponding to the condensation resistance net is opened in the gathering cylinder, and the inner walls on both sides of the top opening of the gathering channel are provided with inclined slopes corresponding to the connecting plate.

[0016] Preferably, the telescopic assembly includes a connecting block, a connecting rod, a limit block and a tension spring;

[0017] One end of the connecting rod is fixedly connected to the connecting plate, and the other end of the connecting rod is connected to the limit block. A limit groove corresponding to the limit block is provided on the connecting block. One end of the tension spring is connected to the connecting plate, and the other end of the tension spring is connected to the limit block.

[0018] Preferably, the lifting assembly includes a screw rod, a lifting block and a lifting motor;

[0019] The inner wall of the demister is provided with a lifting groove corresponding to the screw rod;

[0020] The lifting block is threadedly connected to the screw rod and fixedly connected to the gathering cylinder;

[0021] The lifting motor is connected to the lead screw.

[0022] Preferably, the saline drainage pipe is composed of a U-shaped pipe, and the saline drainage pipe stores liquid at a corner position.

[0023] Preferably, the demister is made of PVC, PP or PE material.

[0024] Preferably, the filter cotton is one or more of polyester filter cotton, PP cotton or PE cotton.

[0025] (III) Beneficial effects

[0026] The beneficial effects of the present invention are as follows: the present invention successfully solves the problem that gaseous salt mist particles cannot be effectively and quickly condensed, has a simple structure, good corrosion resistance, good condensation effect, low cost, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of a second embodiment of the present invention;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of the middle part;

[0030] Figure 4 It is a structural schematic diagram of the rotating mechanism;

[0031] Figure 5 This is a diagram showing the changes in the usage status of the condensation barrier.

[0032] Description of reference numerals:

[0033] 1. Defogger;

[0034] 2. Condensation barrier;

[0035] 3. Aerosol inlet tube;

[0036] 4. Saline drainage pipe;

[0037] 5. Rotation mechanism;

[0038] 51. Connecting plate; 52. Telescopic assembly; 521. Connecting block; 522. Connecting rod; 523. Limiting block; 524. Tension spring; 53. Rotating motor; 54. Gathering cylinder; 55. Lifting assembly; 56. Rotating shaft;

[0039] 6. Exhaust port. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0041] Please refer to Figure 1 , the first embodiment of the present invention:

[0042] A condensation device for a salt spray chamber, comprising a demister 1 and a condensation barrier 2;

[0043] An aerosol inlet pipe 3 is provided at one side of the bottom of the demister 1, and the demister 1 is connected to the salt spray chamber through the aerosol inlet pipe 3. A salt water drain pipe 4 is provided at the other side of the bottom of the demister 1, and an exhaust port 6 is provided at the top of the demister 1.

[0044] The condensation resistance net 2 is arranged in the demister 1, and the condensation resistance net 2 is made of multiple layers of filter cotton;

[0045] During use, after the salt mist particles in the salt mist box reach saturation concentration, the salt mist is discharged through the salt mist box and enters the demister 1 from the gas mist inlet pipe 3. The gaseous salt mist particles are lighter and rise with the airflow sprayed from the salt mist box. When the gaseous salt mist passes through the condensation resistance net 2, heat exchange is performed at the filter cotton, and it is transformed from gas to liquid and condensed into brine. The brine will fall back to the bottom of the demister 1. Part of the gaseous salt mist continues to move upward, and continues to generate heat exchange and condense and liquefy on the filter cotton layer by layer. The rising gaseous salt mist contacts the falling brine, and more gaseous salt mist is liquefied into brine and falls back to the bottom of the demister 1, until the gaseous salt mist is completely liquefied and falls back to the bottom of the demister 1. The brine that falls back to the bottom of the demister 1 flows out of the demister 1 through the brine drain pipe 4 for recovery; the clean air after the salt mist is defogged by the demister is discharged from the exhaust port 6 on the upper part of the demister 1; the present application constructs a layer-by-layer gas-liquid heat exchange site, successfully realizes the process from gasification to liquefaction of gaseous salt mist particles, and effectively solves the problems of poor condensation effect and incomplete condensation in the process of conventional condensers using cooling water to gasify to liquefy through heat exchange. It has a simple structure, low cost, and is suitable for large-scale promotion.

[0046] In this embodiment, a salt mist chamber is provided in the demister 1 below the condensation resistance net 2, and the air pressure in the salt mist chamber is the same as the air pressure in the salt spray box; after the salt mist enters the demister 1, the saturation pressure of the salt mist in the salt spray box is the same, ensuring that the salt mist pressure in the salt spray box remains unchanged.

[0047] refer to Figures 2 to 5 The second embodiment of the present invention is based on the above embodiment:

[0048] The rotating mechanism 5 includes a connecting plate 51, a rotating shaft 56, a rotating motor 53, a lifting assembly 55 and a gathering cylinder 54;

[0049] Two groups of connecting plates 51 are provided, which are arranged on both sides of the condensation resistance net 2. A rotating shaft 56 is provided on one side of the outer wall of the connecting plate 51, and is rotatably connected to the inner wall of the defogger 1 through the rotating shaft 56. One of the rotating shafts 56 is connected to the rotating motor 53.

[0050] The gathering cylinder 54 is arranged below the condensation resistance net 2 , and the gathering cylinder 54 is connected to the lifting end of the lifting assembly 55 . After the gathering cylinder 54 is lifted upward, it is connected to the bottom of the condensation resistance net 2 .

[0051] The connecting plate 51 is in a prism shape, the large end of the connecting plate 51 is fixedly connected to the condensation resistance net 2, the connecting plate 51 is connected to the rotating shaft 56 through the telescopic component 52, a gathering channel corresponding to the condensation resistance net 2 is opened in the gathering cylinder 54, and the inner walls on both sides of the top opening of the gathering channel are provided with inclined surfaces corresponding to the connecting plate 51;

[0052] During use, the gathering cylinder 54 is raised by the lifting component 55 and docked with the condensation resistance net 2. The salt mist enters from the gathering channel and is condensed by the condensation resistance net 2 and then discharged upward. The longitudinal section of the condensation resistance net 2 is a cube structure. After long-term use, the fiber structure of the bottom of the condensation resistance net 2 will gradually wear out, which will eventually lead to a decrease in the filtering effect. The condensation resistance net 2 is driven to rotate by the rotating motor 53, and the condensation resistance net 2 is turned over 90°, so that the other side of the condensation resistance net 2 is rotated to the bottom for condensation filtering of the salt mist. Repeating the above operation can effectively utilize the four sides of the condensation resistance net 2. In the process of the lifting component 55 continuously raising the gathering cylinder 54, the two connecting plates 51 can move toward each other under the action of the inclined surface at the top opening of the gathering cylinder 54, which squeezes the internal condensation resistance net 2, increases the density of the condensation resistance net 2 after corrosion, and precipitates the salt water in the condensation resistance net 2. While further utilizing the condensation resistance net 2, the recovery efficiency is improved.

[0053] In this embodiment, the telescopic assembly 52 includes a connecting block 521, a connecting rod 522, a limit block 523 and a tension spring 524;

[0054] One end of the connecting rod 522 is fixedly connected to the connecting plate 51, and the other end of the connecting rod 522 is connected to the limit block 523. The connecting block 521 is provided with a limit groove corresponding to the limit block 523. One end of the tension spring 524 is connected to the connecting plate 51, and the other end of the tension spring 524 is connected to the limit block 523.

[0055] During use, when the two connecting plates 51 move toward each other, the limiting block 523 moves in the limiting groove to cooperate with the movement of the connecting plates 51 , and the limiting block 523 is reset by the tension spring 524 during reset.

[0056] In this embodiment, the lifting assembly 55 includes a screw rod, a lifting block and a lifting motor;

[0057] The inner wall of the demister 1 is provided with a lifting groove corresponding to the screw rod;

[0058] The lifting block is threadedly connected to the screw rod and fixedly connected to the gathering cylinder 54;

[0059] The lifting motor is connected to the lead screw.

[0060] It should be noted that the connecting plate 51, the rotating shaft 56, the gathering cylinder 54, the screw rod, the lifting block, the connecting block 521, the connecting rod 522 and the limit block 523 in the rotating mechanism 5 are all made of polytetrafluoroethylene or nylon material, and the tension spring 524 is a plastic spring.

[0061] In this embodiment, the brine drainage pipe 4 is composed of a U-shaped pipe, and liquid is stored in the corner of the brine drainage pipe 4 to prevent salt mist from escaping.

[0062] In this embodiment, the demister 1 is made of PVC, PP or PE material to effectively avoid salt spray corrosion.

[0063] In this embodiment, the filter cotton is made of polyester filter cotton, PP cotton, PE cotton or fibers with a high specific surface area.

[0064] The working principle of the present invention is as follows:

[0065] After the gaseous salt mist particles in the salt spray box reach saturation concentration, the salt mist is discharged through the salt spray box and enters the demister 1 from the gas mist input pipe 3. The gaseous salt mist particles rise upward with the air flow sprayed from the salt spray box. When the salt mist passes through the condensation resistance net 2, it is blocked by the filter cotton, and heat exchange and condensation and liquefaction are carried out at the filter cotton, changing from gas phase to liquid phase, and the salt water falls back to the bottom of the demister 1. Part of the gaseous salt mist continues to rise and passes through layers of filter cotton. The rising gaseous salt mist continues to contact with the falling salt water, and more gaseous salt mist is liquefied into salt water until it is completely liquefied; the liquefied salt water falls back to the bottom of the demister 1 and flows out of the demister 1 from the salt water discharge pipe 4 for recovery; the clean air after the salt mist is defogged by the demister is discharged from the outlet of the exhaust port 6 on the upper part of the demister 1. The present application successfully solves the problems of incomplete liquefaction and low liquefaction efficiency in the process of gasification to liquefaction of gaseous salt mist particles in the prior art, has a simple structure, low cost, and is suitable for large-scale promotion.

[0066] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0067] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A condensing device for a salt spray chamber, characterized in that: Including defogger and condensation barrier; An aerosol input pipe is provided on one side of the bottom of the demister, the demister is connected to the salt spray chamber through the aerosol input pipe, a salt water drain pipe is provided on the other side of the bottom of the demister, and an exhaust port is provided on the top of the demister; The condensation resistance net is arranged in the demister, and the condensation resistance net is made of multiple layers of filter cotton.

2. A condensing device for a salt spray chamber according to claim 1, characterized in that: A salt mist chamber is provided in the demister below the condensation resistance net, and the air pressure in the salt mist chamber is the same as the air pressure in the salt mist box.

3. A condensing device for a salt spray chamber according to claim 1, characterized in that: It also includes a rotating mechanism, which includes a connecting plate, a rotating shaft, a rotating motor, a lifting assembly and a gathering cylinder; The connecting plates are provided with two groups, which are arranged oppositely on both sides of the condensation resistance net, and the rotating shaft is provided on one side of the outer wall of the connecting plate, and is rotatably connected to the inner wall of the defogger through the rotating shaft, and one of the rotating shafts is connected to the rotating motor; The gathering cylinder is arranged below the condensation resistance net, and the gathering cylinder is connected to the lifting end of the lifting assembly. After the gathering cylinder is lifted upward, it is connected to the bottom of the condensation resistance net.

4. A condensing device for a salt spray chamber according to claim 3, characterized in that: The connecting plate is in the shape of a prism, and the large end of the connecting plate is fixedly connected to the condensation resistance net. The connecting plate is connected to the rotating shaft through a telescopic component. A gathering channel corresponding to the condensation resistance net is opened in the gathering cylinder, and the inner walls on both sides of the top opening of the gathering channel are provided with inclined slopes corresponding to the connecting plate.

5. A condensing device for a salt spray chamber according to claim 4, characterized in that: The telescopic assembly includes a connecting block, a connecting rod, a limit block and a tension spring; One end of the connecting rod is fixedly connected to the connecting plate, and the other end of the connecting rod is connected to the limit block. A limit groove corresponding to the limit block is provided on the connecting block. One end of the tension spring is connected to the connecting plate, and the other end of the tension spring is connected to the limit block.

6. A condensing device for a salt spray chamber according to claim 3, characterized in that: The lifting assembly includes a screw rod, a lifting block and a lifting motor; The inner wall of the demister is provided with a lifting groove corresponding to the screw rod; The lifting block is threadedly connected to the screw rod and fixedly connected to the gathering cylinder; The lifting motor is connected to the lead screw.

7. A condensing device for a salt spray chamber according to claim 1, characterized in that: The saline drainage pipe is composed of a U-shaped pipe, and liquid is stored in the corner of the saline drainage pipe.

8. The condensing device for a salt spray chamber according to claim 1, characterized in that: The demister is made of PVC, PP or PE material.

9. A condensing device for a salt spray chamber according to claim 1, characterized in that: The filter cotton is one or more of polyester filter cotton, PP cotton or PE cotton.

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