A square vacuum drying oven

Abstract

The utility model discloses a kind of square vacuum drying oven, wherein square vacuum drying oven, the square vacuum drying oven includes shell and inner shell, the inner shell outside symmetrically setting liquid guide square tube, the liquid guide square tube is longitudinally S type distribution in inner shell top, the liquid guide square tube is laterally S type distribution in the side and rear of inner shell;Liquid guide square tube one end is fixedly connected water inlet pipe, the water inlet pipe is through shell, liquid guide square tube other end is fixedly connected water outlet pipe, the water outlet pipe is through shell, the water inlet pipe below is vertically connected longitudinal pipe, recess is set up in the longitudinal pipe outside, six circular-truncated-cone recesses are evenly set up on the longitudinal pipe, the inside of circular-truncated-cone recess is inner hole, outside is outer hole, and inner hole is less than outer hole, the device solves the current drying oven only in internal setting steam system exists uneven heating, heat loss, the problem of constant temperature of box.

Description

Technical Field

[0001] This utility model belongs to the field of drying oven technology, specifically relating to a square vacuum drying oven. Background Technology

[0002] Vacuum drying ovens are specifically designed for drying heat-sensitive, easily decomposed, and easily oxidized substances. During operation, they maintain a certain degree of vacuum within the chamber and can be filled with inert gas, enabling rapid drying of even complex materials. Vacuum drying ovens have a wide range of applications in the market, including biochemistry, chemical pharmaceuticals, medical and health fields, agricultural research, and environmental protection.

[0003] Existing vacuum drying ovens have some problems during use. For example, the internal steam system of existing drying ovens may result in uneven heating and poor overall temperature control. This phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content

[0004] The purpose of this invention is to address the problems mentioned in the background section regarding an existing square vacuum drying oven.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a square vacuum drying oven, comprising a square vacuum drying oven, the square vacuum drying oven comprising an outer shell and an inner shell, wherein liquid guiding square tubes are symmetrically arranged on the outside of the inner shell, the liquid guiding square tubes are longitudinally S-shaped distributed at the top of the inner shell, and the liquid guiding square tubes are transversely S-shaped distributed on the sides and back of the inner shell. One end of the liquid guiding square tube is fixedly connected to the water inlet pipe, which penetrates the outer shell, and the other end of the liquid guiding square tube is fixedly connected to the water outlet pipe, which also penetrates the outer shell.

[0006] This utility model further describes that a longitudinal pipe is vertically connected below the water inlet pipe. A groove is formed on the outer side of the longitudinal pipe. Six frustum-shaped grooves are evenly formed on the longitudinal pipe. The inner side of each frustum-shaped groove is an inner hole, and the outer side is an outer hole. The inner hole is smaller than the outer hole. A retaining bead is slidably connected in each frustum-shaped groove. The diameter of the retaining bead is larger than the diameter of the inner hole of the frustum-shaped groove to prevent the retaining bead from falling inward. The diameter of the retaining bead is smaller than the diameter of the outer hole of the frustum-shaped groove. A spring is fixedly connected to the bottom surface of the groove.

[0007] The present invention further describes that the longitudinal tube sliding connection ring has a boss on its inner side, the boss on the ring is located in the groove, and the bottom of the boss of the ring is attached to the top of the spring; A filter assembly is installed inside the longitudinal tube.

[0008] The present invention further describes that the filter assembly includes a filter basket and a support block. The filter basket is located inside the longitudinal tube, and the top of the filter basket is inclined. The lowest point of the top of the filter basket is connected to the bottom of the water inlet pipe, and the highest point of the top of the filter basket is in contact with the upper part of the inner wall of the water inlet pipe. The bottom of the filter basket is fixedly connected to an irregularly shaped card block.

[0009] The present invention further describes that the support block is located inside the longitudinal tube, an irregular groove is opened at the center of the upper part of the support block, the irregular block is connected to the keyway of the support block, six semi-circular grooves are evenly opened at the upper end of the support block, and a base is fixedly connected to the lower part of the support block. The base is a bottle cap structure and a waterproof gasket is set inside the base.

[0010] This utility model further illustrates that when the filter assembly is inserted into the water inlet pipe, the semi-circular groove is flush with the frustum-shaped groove, the longitudinal tube is slidably connected to the inside of the base, and the bottom of the longitudinal tube is in contact with the top of the waterproof gasket.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting a longitudinal S-shaped liquid guiding square tube at the top of the inner shell and setting transverse S-shaped liquid guiding square tubes on the sides and back of the inner shell, keeps the temperature inside the shell constant, ensuring that the internal heating system heats up faster and more uniformly, allowing the material to dehydrate faster. Moreover, by setting a filter component on the water inlet pipe, the heating liquid is filtered, reducing impurities entering the liquid guiding square tube, reducing the number of cleaning times and costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the inner shell of this utility model; Figure 3 This is a utility model Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a utility model Figure 3 A magnified view of a portion of region B in the middle; Figure 5 is an assembly diagram of this utility model; Figure 6 This is a disassembly diagram of this utility model; Figure 7 This is a utility model Figure 6 A magnified view of a portion of region C in the middle; In the diagram: 1. Square vacuum drying oven; 2. Outer shell; 3. Water inlet pipe; 4. Filter assembly; 5. Water outlet pipe; 6. Inner shell; 7. Liquid guide square tube; 8. Ring buckle; 9. Clamping bead; 10. Spring; 11. Base; 12. Waterproof gasket; 13. Support block; 14. Drain basket; 15. Irregularly shaped clamping block; 16. Semi-circular groove; 17. Irregularly shaped groove; 18. Frustum-shaped groove; 19. Groove; 20. Longitudinal tube. Detailed Implementation

[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] Please see Figure 1-6 The present invention provides a technical solution: a square vacuum drying oven, including a square vacuum drying oven 1. The square vacuum drying oven 1 is prior art and will not be described in detail.

[0015] The square vacuum drying oven 1 includes an outer shell 2 and an inner shell 6. Liquid guiding square tubes 7 are symmetrically arranged on the outside of the inner shell 6. The liquid guiding square tubes 7 are arranged in a longitudinal S-shape on the top of the inner shell 6, and in a transverse S-shape on the sides and back of the inner shell 6.

[0016] One end of the liquid guiding square tube 7 is fixedly connected to the water inlet pipe 3, which passes through the outer shell 2. The other end of the liquid guiding square tube 7 is fixedly connected to the water outlet pipe 5, which also passes through the outer shell 2.

[0017] A longitudinal pipe 20 is vertically connected below the water inlet pipe 3. A groove 19 is opened on the outer side of the longitudinal pipe 20. Six frustum-shaped grooves 18 are evenly opened on the longitudinal pipe 20. The inner side of the frustum-shaped groove 18 is an inner hole, and the outer side is an outer hole. The inner hole is smaller than the outer hole. A retaining bead 9 is slidably connected in each frustum-shaped groove 18. The diameter of the retaining bead 9 is larger than the diameter of the inner hole of the frustum-shaped groove 18 to prevent the retaining bead 9 from rolling inward and falling off. The diameter of the retaining bead 9 is smaller than the diameter of the outer hole of the frustum-shaped groove 18. A spring 10 is fixedly connected to the bottom surface of the groove 19.

[0018] The longitudinal tube 20 is slidably connected to the ring 8. A boss is provided on the inner side of the ring 8. The boss on the ring 8 is located in the groove 19. The bottom of the boss of the ring 8 is attached to the top of the spring 10.

[0019] A filter assembly 4 is installed inside the longitudinal tube 20.

[0020] The filter assembly 4 includes a filter basket 14 and a support block 13. The filter basket 14 is located inside the longitudinal pipe 20, and the top of the filter basket 14 is inclined. The lowest point of the top of the filter basket 14 is connected to the bottom of the water inlet pipe 3, and the highest point of the top of the filter basket 14 is in contact with the upper part of the inner wall of the water inlet pipe 3. The bottom of the filter basket 14 is fixedly connected to the irregularly shaped card block 15.

[0021] The support block 13 is located inside the longitudinal tube 20. An irregular groove 17 is opened at the center of the upper part of the support block 13. The irregular card block 15 is connected to the support block 13 via a keyway. Six semi-circular grooves 16 are evenly opened at the upper end of the support block 13. The base 11 is fixedly connected to the lower part of the support block 13. The base 11 is a bottle cap structure. A waterproof gasket 12 is set inside the base 11.

[0022] When the filter assembly 4 is inserted into the water inlet pipe 3, the semi-circular groove 16 is flush with the frustum-shaped groove 18, the longitudinal tube 20 is slidably connected to the inside of the base 11, and the bottom of the longitudinal tube 20 is in contact with the top of the waterproof gasket 12.

[0023] Working principle: When using the square vacuum drying oven 1, the heating liquid enters from the inlet pipe 3 and flows through the liquid guiding square pipe 7. First, it flows along the longitudinal S-shaped liquid guiding square pipe 7 set at the top of the inner shell 6, then flows through the transverse S-shaped liquid guiding square pipe 7 set on the side and back of the inner shell 6, and finally exits from the outlet pipe 5. This ensures the overall temperature of the square vacuum drying oven 1 and keeps the square vacuum drying oven 1 at a constant temperature. In addition, the internal steam helps to reach the temperature more quickly, allowing the material to dehydrate faster.

[0024] A filter assembly 4 is installed on the inlet pipe 3 to filter the heating liquid before it enters the liquid guiding square tube 7, reducing the risk of blockage inside the liquid guiding square tube 7. First, the heating liquid enters from the inlet pipe 3 and passes through a strainer basket 14 installed inside the longitudinal pipe 20. Because the lowest point of the strainer basket 14 is connected to the bottom of the inlet pipe 3, and the highest point of the strainer basket 14 is in contact with the upper inner wall of the inlet pipe 3, and because the inlet end of the heating liquid is low and the outlet end is high, the strainer basket 14 can intercept impurities in the heating liquid and allow them to fall into the strainer basket 14. This effectively reduces the amount of impurities entering the liquid guiding square tube 7, reducing maintenance frequency and costs.

[0025] To disassemble filter assembly 4, simply pull down ring 8. The protruding part of ring 8 will press down spring 10. When the upper end of the protruding part of ring 8 is flush with the frustum-shaped groove 18, the retaining bead 9 will slide downwards along the slope of the frustum-shaped groove 18. When the retaining bead 9 is completely separated from the semi-circular groove 16, filter assembly 4 will slide down. The operator only needs to support the base 11. After completely removing filter assembly 4, pour out the impurities in the strainer basket 14 and rinse. If the strainer basket 14 is damaged, the operator can remove it by holding the support block 13 and rotating the strainer basket 14 counterclockwise for replacement. At the same time, the waterproof gasket 12 can also be removed and replaced. The disassembly diagram is shown. Figure 6 .

[0026] During installation, first, snap the drain basket 14 clockwise onto the support block 13, then insert the filter assembly 4 into the inlet pipe 3. Figure 5 The quick disassembly and installation of filter assembly 4 improves efficiency and reduces operator workload.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A square vacuum drying oven, comprising a square vacuum drying oven (1), characterized in that: The square vacuum drying oven (1) includes an outer shell (2) and an inner shell (6). Liquid guiding square tubes (7) are symmetrically arranged on the outside of the inner shell (6). The liquid guiding square tubes (7) are arranged in a longitudinal S-shape on the top of the inner shell (6) and in a transverse S-shape on the sides and back of the inner shell (6). One end of the liquid guiding square tube (7) is fixedly connected to the water inlet pipe (3), the water inlet pipe (3) penetrates the outer shell (2), and the other end of the liquid guiding square tube (7) is fixedly connected to the water outlet pipe (5), the water outlet pipe (5) penetrates the outer shell (2).

2. The square vacuum drying oven according to claim 1, characterized in that: The water inlet pipe (3) is vertically connected to the longitudinal pipe (20) below. The longitudinal pipe (20) has a groove (19) on its outer side. Six frustum-shaped grooves (18) are evenly opened on the longitudinal pipe (20). The inner side of the frustum-shaped groove (18) is an inner hole, and the outer side is an outer hole. The inner hole is smaller than the outer hole. A retaining bead (9) is slidably connected in each frustum-shaped groove (18). The diameter of the retaining bead (9) is larger than the diameter of the inner hole of the frustum-shaped groove (18) to prevent the retaining bead (9) from falling inward. The diameter of the retaining bead (9) is smaller than the diameter of the outer hole of the frustum-shaped groove (18). A spring (10) is fixedly connected to the bottom surface of the groove (19).

3. A square vacuum drying oven according to claim 2, characterized in that: The longitudinal tube (20) is slidably connected to the ring (8), and a boss is provided on the inner side of the ring (8). The boss on the ring (8) is located in the groove (19), and the bottom of the boss of the ring (8) is attached to the top of the spring (10). A filter assembly (4) is installed inside the longitudinal tube (20).

4. A square vacuum drying oven according to claim 3, characterized in that: The filter assembly (4) includes a filter basket (14) and a support block (13). The filter basket (14) is located inside the longitudinal pipe (20), and the top of the filter basket (14) is inclined. The lowest point of the top of the filter basket (14) is connected to the bottom of the water inlet pipe (3), and the highest point of the top of the filter basket (14) is in contact with the upper part of the inner wall of the water inlet pipe (3). The bottom of the filter basket (14) is fixedly connected to a shaped card block (15).

5. A square vacuum drying oven according to claim 4, characterized in that: The support block (13) is located inside the longitudinal tube (20). A shaped groove (17) is opened at the center of the upper part of the support block (13). The shaped card block (15) is connected to the support block (13) by a keyway. Six semi-circular grooves (16) are evenly opened at the upper end of the support block (13). The base (11) is fixedly connected to the lower part of the support block (13). The base (11) is a bottle cap structure. A waterproof gasket (12) is set inside the base (11).

6. A square vacuum drying oven according to claim 5, characterized in that: When the filter assembly (4) is inserted into the water inlet pipe (3), the semi-circular groove (16) is flush with the frustum-shaped groove (18), the longitudinal tube (20) is slidably connected to the base (11), and the bottom of the longitudinal tube (20) is in contact with the top of the waterproof gasket (12).

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