Dehumidification device for gas drying and 3D printer

Abstract

The utility model relates to the technical field of dehumidification devices, in particular to a dehumidification device for gas drying and a 3D printer, the dehumidification device for gas drying comprises a mounting plate, a circulating water tank, a water pump, a refrigerator and a condensation pipe, and the circulating water tank, the water pump and the refrigerator are fixedly arranged on the mounting plate; the condenser pipe comprises an inner pipe body and an outer pipe body, the end of the inner pipe body and the end of the outer pipe body are connected in a sealed mode, the space between the inner pipe body and the outer pipe body is a cooling cavity, and a cooling water inlet and a cooling water outlet which are communicated with the cooling cavity are formed in the peripheral side wall of the outer pipe body. Two ends of the inner pipe body are respectively communicated with an air inlet pipe and an air outlet pipe; a water outlet of the circulating water tank is connected with a water inlet of the water pump through a first pipeline; a water outlet of the water pump is connected with a water inlet of the refrigerator through a second pipeline; a water outlet of the refrigerator is connected with the cooling water inlet through a third pipeline, and the cooling water outlet is connected with a water inlet of the circulating water tank through a fourth pipeline. The metal part forming device has the effects of reducing the humidity of air in the forming chamber and improving the forming quality of metal parts.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehumidification devices, in particular to a dehumidification device for gas drying and a 3D printer. BACKGROUND

[0002] A 3D metal printer is a scientific instrument used in the fields of physics, engineering and technology basic disciplines, and mechanical engineering, which uses laser melting technology to melt metal powder to form functional solid parts, and can be used for printing high-throughput metal materials. It is a full-digital rapid prototyping manufacturing process that directly produces full high-density metal parts according to the layered interface data of three-dimensional CAD. The thickness of the melted metal layer is from 20 microns to 100 microns. Metal rapid prototyping, when manufacturing parts, the 3D printer needs to first lay the metal powder in the forming cylinder, and use a scraper to make the metal powder layer evenly distributed, and then melt each metal layer in the forming chamber under strict control of the air environment in the forming chamber, and finally get the solid part. However, the air in the forming chamber contains moisture, and high humidity cannot meet the strict air conditions in the forming chamber, affecting the forming quality of the metal parts. CONTENT OF THE UTILITY MODEL

[0003] In order to reduce the humidity of the air in the forming chamber and improve the forming quality of the metal parts, the present application provides a dehumidification device for gas drying and a 3D printer.

[0004] In a first aspect, the present application provides a dehumidification device for gas drying, which adopts the following technical scheme:

[0005] A dehumidification device for gas drying, comprising a mounting plate, a circulating water tank, a water pump, a refrigeration device and a condenser pipe, the circulating water tank, the water pump and the refrigeration device are fixedly arranged on the mounting plate;

[0006] The condenser pipe comprises an inner pipe body and an outer pipe body, the end portions of the inner pipe body and the outer pipe body are connected to each other in a sealed manner, the space between the inner pipe body and the outer pipe body is a cooling chamber, and the outer pipe body is provided with a cooling water inlet and a cooling water outlet which communicate with the cooling chamber; the two ends of the inner pipe body are respectively connected with an air inlet pipe and an air outlet pipe;

[0007] The water outlet of the circulating water tank is connected with the water inlet of the water pump through a first pipeline, the water outlet of the water pump is connected with the water inlet of the refrigeration device through a second pipeline, the water outlet of the refrigeration device is connected with the cooling water inlet through a third pipeline, and the cooling water outlet is connected with the water inlet of the circulating water tank through a fourth pipeline.

[0008] By adopting the technical scheme, the device is used, the air inlet pipe and the air outlet pipe are communicated with the forming chamber, and the air in the forming chamber can be extracted through the air outlet pipe according to actual conditions. The water pump is started, the water in the circulating water tank is pumped into the refrigerating device for cooling, and then is input into the cooling chamber, the circulating cooling water covers the cooling chamber, so that the air in the inner pipe body is condensed, the moisture in the air is condensed into liquid and stays in the inner pipe body, air dehumidification is realized, and dry air enters the forming chamber through the air inlet pipe, which has the effects of reducing the humidity of air in the forming chamber and improving the forming quality of metal parts.

[0009] Optionally, the condensing pipe is horizontally arranged, the inner pipe body comprises a plurality of unit ball pipes communicated in sequence, and the bottom of each unit ball pipe is communicated with a condensate water outlet pipe, and the end of the condensate water outlet pipe away from the unit ball pipe penetrates through the circumferential sidewall of the outer pipe body.

[0010] By adopting the technical scheme, the inner pipe body comprises a plurality of unit ball pipes communicated in sequence, which helps to increase the cooling area and improve the condensing efficiency on the one hand, and enables the condensate water to accumulate at the bottom of each unit ball pipe and then be discharged from the condensate water outlet pipe, thereby facilitating continuous use of the condensing pipe.

[0011] Optionally, the device further comprises a water storage tank, the bottom of the circumferential sidewall of the outer pipe body is fixedly connected with a water receiving box, one end of the condensate water outlet pipe penetrating through the circumferential sidewall of the outer pipe body is communicated with the water receiving box, the bottom of the water receiving box is communicated with a first drain pipe, the inner bottom wall of the water receiving box is arranged to be inclined towards the first drain pipe, and the lowest end of the inner bottom wall of the water receiving box is located at the first drain pipe; a switch valve is arranged on the first drain pipe, and the end of the first drain pipe away from the water receiving box is communicated with the water storage tank.

[0012] By adopting the technical scheme, the condensate water discharged from the condensate water outlet pipe can be concentrated into the water receiving box and then discharged from the first drain pipe into the water storage tank, so that the condensate water can be concentrated and treated.

[0013] Optionally, a plurality of partition ring plates are arranged in the cooling chamber, the partition ring plates are arranged at the connection positions of adjacent two unit ball pipes, the outer circumferential sidewall of each partition ring plate is sealingly connected with the inner wall of the outer pipe body, and the inner circumferential sidewall of each partition ring plate is sealingly connected with the outer wall of the inner pipe body; the cooling chamber is divided into a plurality of unit chambers by the partition ring plates, flow through grooves are arranged on the partition ring plates, and the flow through grooves communicate adjacent two unit chambers.

[0014] By adopting the technical scheme, on the one hand, the partition ring plates can increase the heat exchange area and accelerate condensation, and on the other hand, the partition ring plates can increase the residence time of the cooling water in each unit chamber and enhance the condensing effect.

[0015] Optionally, the flow channels on the two adjacent partition ring plates are respectively located at the top end and the bottom end of the cooling chamber.

[0016] By adopting the above technical scheme, the flow path of the cooling water in the cooling chamber is increased, and the condensation effect is further enhanced.

[0017] Optionally, the water blocking side plate is fixedly connected to the peripheral side of the mounting plate, and the second drain pipe is communicated with the bottom wall of the mounting plate and communicated with the water storage tank at the end away from the mounting plate.

[0018] By adopting the above technical scheme, the water flowing down from the circulating water tank and the refrigerating device can be blocked inside the mounting plate by the water blocking side plate, and then discharged into the water storage tank through the second drain pipe for centralized treatment, which helps to improve the dryness and cleanliness of the on-site environment.

[0019] In a second aspect, the application provides a 3D printer adopting the following technical scheme:

[0020] The 3D printer comprises the above-mentioned dehumidifying device for gas drying.

[0021] In summary, the application has at least one of the following beneficial technical effects:

[0022] 1. The water pump is started, the water pump pumps the water in the circulating water tank into the refrigerating device for cooling, and then into the cooling chamber, the circulating cooling water fills the cooling chamber, thereby condensing the air in the inner pipe body, the moisture in the air is condensed into liquid and stays in the inner pipe body, realizing air dehumidification, and the dry air enters the forming chamber through the air inlet pipe, having the effects of reducing the humidity of the air in the forming chamber and improving the forming quality of the metal parts;

[0023] 2. The inner pipe body comprises a plurality of unit ball pipes communicated in sequence, which on the one hand helps to increase the cooling area and improve the condensation efficiency, and on the other hand enables the condensed water to accumulate at the bottom of each unit ball pipe and then be discharged from the condensed water outlet pipe, facilitating the continuous use of the condensing pipe;

[0024] 3. The partition ring plate on the one hand can increase the heat exchange area and accelerate the condensation, and on the other hand can increase the residence time of the cooling water in each unit chamber and enhance the condensation effect; and the flow channels on the two adjacent partition ring plates are respectively located at the top end and the bottom end of the cooling chamber, which helps to increase the flow path of the cooling water in the cooling chamber and further enhance the condensation effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall structure schematic diagram of the dehumidifying device for gas drying and the 3D printer according to an embodiment of the application.

[0026] Figure 2is a structural schematic diagram of the bottom of the condenser tube shown in the embodiments of the present application.

[0027] Figure 3 is a structural schematic diagram of the inside of the condenser tube shown in the embodiments of the present application.

[0028] Figure 4 is a structural schematic diagram of the inside of the condenser tube shown in the embodiments of the present application from another angle.

[0029] Legend: 1, mounting plate; 11, first pipe; 12, second pipe; 13, third pipe; 14, fourth pipe; 15, water blocking side plate; 2, circulating water tank; 3, water pump; 4, refrigerator; 5, condenser tube; 51, inner tube body; 511, air inlet pipe; 512, air outlet pipe; 52, outer tube body; 521, cooling water inlet; 522, cooling water outlet; 523, water receiving box; 6, cooling chamber; 61, partition ring plate; 611, flow through slot; 62, unit chamber; 7, unit bulb; 8, condenser water outlet pipe; 9, water storage tank; 91, first drain pipe; 911, on-off valve; 92, second drain pipe. DETAILED DESCRIPTION

[0030] The following will be described in detail below with reference to the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0031] The embodiments of the present application disclose a dehumidifying device for gas drying and a 3D printer.

[0032] In a first aspect, the embodiments of the present application disclose a dehumidifying device for gas drying, which adopts the following technical scheme:

[0033] Reference Figures 1-2 A dehumidifying device for gas drying includes a mounting plate 1, a circulating water tank 2, a water pump 3, a refrigerator 4 and a condenser tube 5. The circulating water tank 2, the water pump 3 and the refrigerator 4 are fixedly arranged on the mounting plate 1. The condenser tube 5 includes an inner tube body 51 and an outer tube body 52. The end portions of the inner tube body 51 and the outer tube body 52 are sealingly connected to each other. The space between the inner tube body 51 and the outer tube body 52 is a cooling chamber 6. The outer tube body 52 is provided with a cooling water inlet 521 and a cooling water outlet 522 which are in communication with the cooling chamber 6. The two ends of the inner tube body 51 are respectively connected to an air inlet pipe 511 and an air outlet pipe 512. The water outlet of the circulating water tank 2 is connected to the water inlet of the water pump 3 through a first pipe 11. The water outlet of the water pump 3 is connected to the water inlet of the refrigerator 4 through a second pipe 12. The water outlet of the refrigerator 4 is connected to the cooling water inlet 521 through a third pipe 13. The cooling water outlet 522 is connected to the water inlet of the circulating water tank 2 through a fourth pipe 14.

[0034] The device of the present application is used, the air inlet pipe 511 and the air outlet pipe 512 are communicated with the forming chamber, and the air in the forming chamber can be extracted through the air outlet pipe 512 according to the actual situation. Start the water pump 3, the water pump 3 draws the water in the circulating water tank 2 into the refrigeration device 4 for cooling, and then inputs into the cooling chamber 6, the circulating cooling water covers the cooling chamber 6, so that the air in the inner pipe body 51 is condensed, the moisture in the air is condensed into liquid and stays in the inner pipe body 51, realizing air dehumidification, and the dry air enters the forming chamber through the air inlet pipe 511, which has the effect of reducing the humidity of the air in the forming chamber and improving the forming quality of the metal parts.

[0035] Referring to Figures 3-4 , the condensing pipe 5 is horizontally arranged, and the condensing pipe 5 is integrally formed by 3D printing during processing and manufacturing. The inner pipe body 51 comprises a plurality of unit ball pipes 7 communicated in sequence, and the bottom of the unit ball pipe 7 is communicated with the condensed water outlet pipe 8, and the end of the condensed water outlet pipe 8 away from the unit ball pipe 7 penetrates the circumferential side wall of the outer pipe body 52. The inner pipe body 51 comprises a plurality of unit ball pipes 7 communicated in sequence, which on the one hand helps to increase the cooling area and improve the condensing efficiency, and on the other hand enables the condensed water to accumulate at the bottom of each unit ball pipe 7, and then be discharged from the condensed water outlet pipe 8, facilitating the continuous use of the condensing pipe 5.

[0036] Referring to Figures 1-3 , it also comprises a water storage tank 9, and the bottom of the circumferential side wall of the outer pipe body 52 is fixedly connected with a water receiving box 523, one end of the condensed water outlet pipe 8 penetrating the circumferential side wall of the outer pipe body 52 is communicated with the water receiving box 523, the bottom of the water receiving box 523 is communicated with a first drain pipe 91, the bottom wall in the water receiving box 523 is inclinedly arranged towards the first drain pipe 91, and the lowest end of the bottom wall in the water receiving box 523 is located at the first drain pipe 91, a switch valve 911 is arranged on the first drain pipe 91, and one end of the first drain pipe 91 away from the water receiving box 523 is communicated with the water storage tank 9. The condensed water discharged from the condensed water outlet pipe 8 can be concentrated into the water receiving box 523, and then discharged from the first drain pipe 91 into the water storage tank 9, which is simple in structure and convenient for centralized treatment of the condensed water.

[0037] Referring to Figures 3-4The cooling chamber 6 is provided with a plurality of partition ring plates 61, the partition ring plates 61 are correspondingly arranged at the connecting positions of the adjacent two unit ball tubes 7, the outer circumferential side wall of the partition ring plate 61 is sealingly connected with the inner wall of the outer tube body 52, and the inner circumferential side wall of the partition ring plate 61 is sealingly connected with the outer wall of the inner tube body 51; the partition ring plates 61 divide the cooling chamber 6 into a plurality of unit chambers 62, the end portion of the partition ring plate 61 is cut to form a flow through groove 611, the flow through grooves 611 on the adjacent partition ring plates 61 are respectively located at the top end and the bottom end of the inner tube body 51. On the one hand, the partition ring plates 61 can increase the heat exchange area and accelerate the condensation; on the other hand, the partition ring plates 61 can increase the residence time of the cooling water in each unit chamber 62 and enhance the condensation effect. The flow through grooves 611 on the adjacent two partition ring plates 61 are respectively located at the top end and the bottom end of the cooling chamber 6, which helps to increase the flow path of the cooling water in the cooling chamber 6 and further enhance the condensation effect.

[0038] With reference to Figure 1 The mounting plate 1 is fixedly connected with a water blocking side plate 15 on the circumferential side, and the bottom wall of the mounting plate 1 is communicated with a second drain pipe 92, and the end of the second drain pipe 92 away from the mounting plate 1 is communicated with the water storage tank 9. The water flowing down at the circulating water tank 2 and the refrigerating device 4 can be blocked by the water blocking side plate 15 to the inner side of the mounting plate 1, and then discharged into the water storage tank 9 through the second drain pipe 92 for centralized treatment, which helps to improve the dryness and neatness of the on-site environment.

[0039] The implementation principle of the dehumidification device for gas drying is as follows: when the device is used, the air inlet pipe 511 and the air outlet pipe 512 are communicated with the forming chamber, and an air extraction pump can be arranged according to the actual situation to extract the air in the forming chamber through the air outlet pipe 512. The water pump 3 is started, the water in the circulating water tank 2 is pumped into the refrigerating device 4 for cooling, and then input into the cooling chamber 6, the circulating cooling water covers the cooling chamber 6, so as to condense the air in the inner tube body 51, the moisture in the air is condensed into liquid and stays in the inner tube body 51, the air is dehumidified, the dry air enters the forming chamber through the air inlet pipe 511, which has the effects of reducing the humidity of the air in the forming chamber and improving the forming quality of the metal parts. The condensed water in the inner tube body 51 enters the water storage tank 9 for centralized treatment through the first drain pipe 91.

[0040] In the second aspect, the application discloses a 3D printer, which adopts the technical scheme as follows.

[0041] The 3D printer comprises the dehumidification device for gas drying.

[0042] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A dehumidification apparatus for gas drying, characterized by: It comprises a mounting plate (1), a circulating water tank (2), a water pump (3), a refrigerator (4) and a condenser pipe (5), the circulating water tank (2), the water pump (3) and the refrigerator (4) are fixedly arranged on the mounting plate (1); The condenser pipe (5) comprises an inner pipe body (51) and an outer pipe body (52), the end of the inner pipe body (51) and the outer pipe body (52) are sealedly connected with each other, the space between the inner pipe body (51) and the outer pipe body (52) is a cooling cavity (6), the circumferential wall of the outer pipe body (52) is provided with a cooling water inlet (521) and a cooling water outlet (522) which are communicated with the cooling cavity (6); the two ends of the inner pipe body (51) are respectively communicated with an air inlet pipe (511) and an air outlet pipe (512); The water outlet of the circulating water tank (2) is connected with the water inlet of the water pump (3) through a first pipeline (11), the water outlet of the water pump (3) is connected with the water inlet of the refrigerator (4) through a second pipeline (12), the water outlet of the refrigerator (4) is connected with the cooling water inlet (521) through a third pipeline (13), and the cooling water outlet (522) is connected with the water inlet of the circulating water tank (2) through a fourth pipeline (14).

2. A dehumidification device for gas drying according to claim 1, characterized in that: The condenser pipe (5) is horizontally arranged, the inner pipe body (51) comprises a plurality of unit ball pipes (7) which are sequentially communicated, the bottom of the unit ball pipe (7) is communicated with a condensate water outlet pipe (8), and the end of the condensate water outlet pipe (8) away from the unit ball pipe (7) penetrates through the circumferential wall of the outer pipe body (52).

3. A dehumidification device for gas drying according to claim 2, characterized in that: Further comprising a water storage tank (9), the bottom of the circumferential wall of the outer pipe body (52) is fixedly connected with a water receiving box (523), one end of the condensate water outlet pipe (8) penetrating through the circumferential wall of the outer pipe body (52) is communicated with the water receiving box (523), the bottom of the water receiving box (523) is communicated with a first drain pipe (91), the bottom wall in the water receiving box (523) is arranged to be inclined towards the first drain pipe (91), and the lowest end of the bottom wall in the water receiving box (523) is located at the first drain pipe (91); a switch valve (911) is arranged on the first drain pipe (91), and one end of the first drain pipe (91) away from the water receiving box (523) is communicated with the water storage tank (9).

4. A dehumidification device for gas drying according to claim 2, characterized in that: A plurality of partition ring plates (61) are arranged in the cooling cavity (6), the partition ring plates (61) are correspondingly arranged at the connection positions of adjacent two unit ball pipes (7), the outer circumferential wall of the partition ring plate (61) is sealingly connected with the inner wall of the outer pipe body (52), and the inner circumferential wall of the partition ring plate (61) is sealingly connected with the outer wall of the inner pipe body (51); the partition ring plate (61) divides the cooling cavity (6) into a plurality of unit cavities (62), and the partition ring plate (61) is provided with a flow through slot (611), and the flow through slot (611) communicates adjacent two unit cavities (62).

5. A dehumidification device for gas drying according to claim 4, characterized in that: The flow through slots (611) on the adjacent two partition ring plates (61) are respectively located at the top end and the bottom end of the cooling cavity (6).

6. A dehumidification device for gas drying according to claim 1, characterized in that: The mounting plate (1) is fixedly connected with a water blocking side plate (15) on the periphery, and a second drain pipe (92) is communicated on the bottom wall of the mounting plate (1), and one end of the second drain pipe (92) away from the mounting plate (1) is communicated with the water storage tank (9).

7. A 3D printer characterized by: The dehumidification device for gas drying comprises the dehumidification device for gas drying according to any one of claims 1-6.

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