Accurate temperature control vacuum drying oven with low leak rate

Abstract

The precise temperature control vacuum drying oven with the low leakage rate comprises a vacuum drying oven body, a cold water tank, a hot water tank and a water gathering tank, sealing bins are arranged on the two sides of the vacuum drying oven body, water distribution pipes are arranged in the sealing bins, and a plurality of heating pipes are arranged between the two water distribution pipes. The heating pipe is located in the vacuum drying box body, partition plates are arranged on the two sides of the bottom of the vacuum drying box body, a plurality of partition plates are arranged between the two partition plates, and the bottoms of the partition plates are located above the top of the heating pipe. By adopting a hot water mode, the temperature of hot water is accurately controlled, so that the drying temperature of materials is accurately controlled, and the heating uniformity and the temperature accuracy of the materials in the drying process are greatly improved; the sealing block is arranged on the back face of the box body cover, the sealing performance of the vacuum drying box body is improved through the sealing block, in addition, the sealing plate is arranged on the surface of the sealing bin, and therefore the vacuum drying box has the low leakage rate and certain practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum drying oven technical field, concretely is a kind of precise temperature control vacuum drying oven with low leakage rate. BACKGROUND

[0002] Vacuum drying oven is a kind of drying equipment by the way of heat radiation work under vacuum environment, it uses vacuum pump to empty the air in the tank of box, so that it reaches the state close to vacuum, and using heating medium is through the way of heat radiation of drying rack in the box to dry material, by forming vacuum state in the box, reduce the evaporation point of water in material, accelerate drying speed, can obtain higher drying rate at lower temperature. At present, vacuum drying oven is widely used in pharmaceutical, food, chemical industry, agricultural products and other fields, mainly used for paste, powder material processing.

[0003] However, the vacuum drying oven of prior art, in the use, it is generally difficult to carry out precise temperature control, difficult to accurately control the drying temperature of material, so that the heat-sensitive substance in material produces property change, thereby reducing the use range of drying oven. UTILITY MODEL CONTENT

[0004] The utility model is provided with a kind of precise temperature control vacuum drying oven with low leakage rate to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of precise temperature control vacuum drying oven with low leakage rate, including vacuum drying oven main body, cold water tank, hot water tank, water collecting tank, first water inlet pipe, second water inlet pipe, the both sides of the vacuum drying oven main body are provided with sealed storehouse, the inside of the sealed storehouse is provided with water pipe, several heating pipes are provided between two the water pipe, the heating pipe is located in the inside of vacuum drying oven main body, the bottom of the vacuum drying oven main body both sides is provided with baffle, several partition plates are provided between two the baffle, the bottom of the partition plate is located above the top of heating pipe;

[0007] The side of the vacuum drying oven main body is provided with water collecting tank, the both sides of the water collecting tank are provided with cold water tank and hot water tank respectively, temperature gauge is arranged between the back of the water collecting tank and the side of vacuum drying oven main body, the back of the water collecting tank and one end of temperature gauge are connected by water outlet pipe, the other end of temperature gauge is connected with one of water pipe by water inlet pipe, the other water pipe extends backwater pipe, the other end of the backwater pipe is connected with cold water tank, the cold water tank and hot water tank are connected by cold and hot water pipe.

[0008] Preferably, the cold and hot water pipe surface sleeve is provided with a first water pump, the first water inlet pipe surface sleeve is provided with a second water pump, the second water inlet pipe surface sleeve is provided with a third water pump, the return water pipe surface sleeve is provided with a fourth water pump, and the water outlet pipe surface sleeve is provided with a fifth water pump.

[0009] Preferably, the front surface of the water collecting tank is provided with a controller.

[0010] Preferably, the top of the vacuum drying box body is provided with a vacuum port connected with a vacuum pump through a pipeline.

[0011] Preferably, the outer surface of the opening surface of the vacuum drying box body is provided with a rubber sealing strip, one side of the vacuum drying box body is connected with a box cover through a hinge, and the back surface of the box cover is provided with a sealing block.

[0012] Preferably, the front surface of the sealing bin is provided with a sealing plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a precise temperature control vacuum drying box with low leakage rate, which adopts hot water to precisely control the temperature of hot water, precisely controls the drying temperature of materials, greatly improves the uniformity of heating and temperature precision of materials in the drying process, and adopts precise temperature control hot water as a heating medium to make the material drying process more stable.

[0015] The utility model discloses a precise temperature control vacuum drying box with low leakage rate, which is provided with a sealing block on the back surface of the box cover, improves the sealing property of the vacuum drying box body through the sealing block, and is additionally provided with a sealing plate on the surface of the sealing bin, so that the vacuum drying box has low leakage rate and has certain practicality. DRAWINGS

[0016] Fig. 1 It is the whole front surface structure schematic diagram of the utility model;

[0017] Fig. 2 It is the whole back surface structure schematic diagram of the utility model;

[0018] Fig. 3 It is the water circulation structure schematic diagram of the utility model.

[0019] In the figure: 1, vacuum drying oven main body; 2, oven cover; 3, sealing block; 4, partition; 5, partition plate; 6, vacuum port; 7, sealed warehouse; 8, rubber sealing strip; 9, sealing plate; 10, cold water tank; 11, hot water tank; 12, water collecting tank; 13, cold and hot water pipe; 14, first water pump; 15, first water inlet pipe; 16, second water pump; 17, second water inlet pipe; 18, third water pump; 19, controller; 20, fourth water pump; 21, thermometer; 22, water distribution pipe; 23, heating pipe; 24, water outlet pipe; 25, fifth water pump; 26, backwater pipe; 27, water inlet pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "provided", "installed", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Please refer to Figs. 1-3 The present application provides a technical solution:

[0024] The application discloses a precise temperature control vacuum drying box with low leakage rate, which comprises a vacuum drying box body 1, a cold water tank 10, a hot water tank 11, a water collecting tank 12, a first water inlet pipe 15 and a second water inlet pipe 17.

[0025] In use, the objects to be dried are placed at the partition plates 5, wherein the materials of the partition plates 5 and the heating pipes 23 have strong heat conductivity, the heat of the inflowing hot water can be poured into the partition plates 5, and the objects to be dried are dried.

[0026] The vacuum drying box body 1 is provided with the water collecting tank 12, the two sides of the water collecting tank 12 are provided with the cold water tank 10 and the hot water tank 11 respectively, the back surface of the water collecting tank 12 and one side surface of the vacuum drying box body 1 are provided with a thermometer 21, the back surface of the water collecting tank 12 and one end of the thermometer 21 are connected through a water outlet pipe 24, the other end of the thermometer 21 is connected with one of the water inlet pipes 22 through a water inlet pipe 27, the other water inlet pipe 22 extends out of a water return pipe 26, the other end of the water return pipe 26 is connected with the cold water tank 10, and the cold water tank 10 and the hot water tank 11 are connected through a cold and hot water pipe 13.

[0027] The first water inlet pipe 15 and the second water inlet pipe 17 are located at the top of the water collecting tank 12, and the first water inlet pipe 15 and the second water inlet pipe 17 are communicated with the cold water tank 10 and the hot water tank 11 respectively.

[0028] Further, the first water pump 14 is sleeved on the surface of the cold and hot water pipe 13, the second water pump 16 is sleeved on the surface of the first water inlet pipe 15, the third water pump 18 is sleeved on the surface of the second water inlet pipe 17, the fourth water pump 20 is sleeved on the surface of the water return pipe 26, and the fifth water pump 25 is sleeved on the surface of the water outlet pipe 24.

[0029] Specifically, the temperature of the hot water is accurately controlled by adopting the hot water mode, the third water pump 18 and the second water pump 16 are controlled by the controller 19, the cold water is pumped from the cold water tank 10 into the water collecting tank 12, the hot water is pumped from the hot water tank 11 into the water collecting tank 12, when the temperature value in the water collecting tank 12 reaches the appropriate requirement, the fifth water pump 25 is opened by the controller 19, then the fourth water pump 20 is opened, the hot water sequentially flows through the water outlet pipe 24, the water inlet pipe 27, the heating pipe 23 and the water return pipe 26, and then flows into the cold water tank 10, so that the water resource is recycled.

[0030] Specifically, in use, the cold water tank 10 will be connected with the condenser, and the hot water flowing back into the cold water tank 10 is cooled, wherein the condenser is a mature technology, and the internal specific structure and working principle will not be described in detail.

[0031] In addition, the temperature sensor is arranged in the controller 19, the temperature of the water in the water collecting tank 12 is measured, the water temperature is adjusted to a suitable temperature, and the thermometer 21 measures the temperature in the water pipe 24, so that the water temperature measurement is more accurate.

[0032] It should be noted that the water in the hot water tank 11 is extracted from the cold water tank 10 through the cold and hot water tank 13, and the hot water tank 11 is provided with a heating wire, and the heating pipe heats the water in the hot water tank 11.

[0033] Further, the front of the water collecting tank 12 is provided with a controller 19.

[0034] Further, the top of the vacuum drying box body 1 is provided with a vacuum port 6, and the vacuum port 6 is connected with a vacuum pump through a pipeline, and it should be noted that the process of extracting the gas in the vacuum drying box body 1 by the vacuum pump is a mature technology, and the internal specific structure and working principle will not be described in detail.

[0035] Further, the outer surface of the opening surface of the vacuum drying box body 1 is provided with a rubber sealing strip 8, one side of the vacuum drying box body 1 is connected with a box cover 2 through a hinge, and the back of the box cover 2 is provided with a sealing block 3.

[0036] Further, the front of the sealing bin 7 is provided with a sealing plate 9.

[0037] Through the sealing block 3, the rubber sealing strip 8 and the sealing plate 9, the sealing property of the vacuum drying box body 1 is improved, the vacuum drying box has low leakage rate, and has certain practicality.

[0038] It should be noted that: the whole device is controlled by the controller 19, and since the controller 19 is a commonly used device, it belongs to a mature technology, and the electrical connection relationship and the specific circuit structure will not be described.

[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vacuum drying oven with low leakage rate and precise temperature control, comprising a vacuum drying oven body (1), a cold water tank (10), a hot water tank (11), a water collection tank (12), a first water inlet pipe (15), and a second water inlet pipe (17), characterized in that: The both sides of the vacuum drying oven body (1) are provided with sealed warehouses (7), the inside of the sealed warehouse (7) is provided with water distribution pipes (22), a plurality of heating pipes (23) are arranged between the two water distribution pipes (22), the heating pipes (23) are located in the inside of the vacuum drying oven body (1), the bottom of the vacuum drying oven body (1) is provided with the partition plates (4), a plurality of partition plates (5) are arranged between the two partition plates (4), the bottom of the partition plate (5) is located above the top of the heating pipe (23); The side of the vacuum drying oven body (1) is provided with a water collecting tank (12), the both sides of the water collecting tank (12) are provided with a cold water tank (10) and a hot water tank (11) respectively, the back of the water collecting tank (12) and the side surface of the vacuum drying oven body (1) are provided with a thermometer (21), the back of the water collecting tank (12) and one end of the thermometer (21) are connected through a water outlet pipe (24), the other end of the thermometer (21) is connected with one of the water distribution pipes (22) through a water inlet pipe (27), the other water distribution pipe (22) extends out of a backwater pipe (26), the other end of the backwater pipe (26) is connected with the cold water tank (10), the cold water tank (10) and the hot water tank (11) are connected through a cold and hot water pipe (13).

2. The precision temperature-controlled vacuum drying oven with low leakage rate according to claim 1, characterized in that: The surface of the cold and hot water pipe (13) is sleeved with a first water pump (14), the surface of the first water inlet pipe (15) is sleeved with a second water pump (16), the surface of the second water inlet pipe (17) is sleeved with a third water pump (18), the surface of the backwater pipe (26) is sleeved with a fourth water pump (20), and the surface of the water outlet pipe (24) is sleeved with a fifth water pump (25).

3. The precision temperature-controlled vacuum drying oven with low leakage rate according to claim 1, characterized in that: The front of the water collecting tank (12) is provided with a controller (19).

4. The precision temperature-controlled vacuum drying oven with low leakage rate according to claim 1, characterized in that: The top of the vacuum drying oven body (1) is provided with a vacuum port (6), and the vacuum port (6) is connected with a vacuum pump through a pipeline.

5. The precision temperature-controlled vacuum drying oven with low leakage rate according to claim 1, characterized in that: The outer surface of the opening surface of the vacuum drying oven body (1) is provided with a rubber sealing strip (8), and the side of the vacuum drying oven body (1) is connected with a box cover (2) through a hinge, and the back of the box cover (2) is provided with a sealing block (3).

6. The precision temperature-controlled vacuum drying oven with low leakage rate according to claim 1, characterized in that: The front of the sealed warehouse (7) is provided with a sealing plate (9).

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