A vacuum drying equipment

Abstract

This utility model relates to the technical field of evaporation drying devices, and more particularly to a vacuum evaporation drying device, comprising an evaporation drying barrel for evaporating waste liquid, a compressor connected to the evaporation drying barrel for providing high temperature for evaporation drying, and an evaporator located on top of the evaporation drying barrel and connected to the evaporation drying barrel for cooling steam into liquid. The evaporation drying barrel includes a barrel body and a sealing cover on the barrel body. An adjustable pressure reducing mechanism is also provided on the side of the barrel body. The adjustable pressure reducing mechanism includes an adjusting component for adjusting the vacuum degree inside the evaporation drying barrel. A vacuum detection element for detecting the vacuum degree inside the evaporation drying barrel is also fixed on the top of the sealing cover. This utility model can monitor the vacuum degree inside the evaporation drying barrel in real time through the vacuum detection element, which can assist the adjusting component in adjusting the vacuum degree inside the barrel to a suitable vacuum degree for the required evaporation liquid, effectively preventing fine crystals from being drawn into the vacuum pump and causing damage, and preventing non-target liquids from being evaporated together.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation and drying devices, in particular to vacuum evaporation and drying equipment. Background Art

[0002] The evaporation equipment is a mechanical device that can be used for the treatment and recycling of industrial wastewater. In the prior art, a vacuum pump is set to reduce the air pressure in the evaporation barrel to a state significantly lower than the atmospheric pressure, so as to reduce the boiling point of the internal wastewater material and evaporate the wastewater. However, it is found that the prior art cannot adjust the internal vacuum degree with high precision. When some wastewater is evaporated to produce fine crystals, if the internal vacuum degree is high at this time and the vacuum pump is not turned off in time, the fine crystals will be sucked into the vacuum pump and cause damage. Utility Model Content

[0003] In order to solve the existing technical problems, the utility model provides a vacuum evaporation device, which aims to solve the problem that the vacuum degree of the existing evaporation device is difficult to adjust.

[0004] The utility model solves the technical problem by adopting a solution: a vacuum evaporation device, comprising a evaporation barrel for evaporating waste liquid, a compressor connected to the evaporation barrel for providing high temperature for evaporation, and an evaporator arranged on the top of the evaporation barrel and connected to the evaporation barrel for cooling steam into liquid, the evaporation barrel comprising a barrel body and a sealing cover arranged on the barrel body, an adjustable decompression mechanism is also arranged on the side of the barrel body, the adjustable decompression mechanism comprises an adjusting component for adjusting the vacuum degree in the evaporation barrel, and a vacuum detection component for detecting the vacuum degree in the evaporation barrel is also fixed on the top of the sealing cover.

[0005] By adopting the above technical solution, the vacuum degree in the evaporation barrel can be monitored in real time through the vacuum detection component, which can assist the adjustment component to adjust the vacuum degree in the barrel to a vacuum degree suitable for the required evaporated liquid, effectively preventing small crystals from being drawn into the vacuum pump to cause damage and evaporating non-target liquids.

[0006] Furthermore, the adjustable decompression mechanism includes a vacuum pump, an air pump connected to the vacuum pump, and a first air pipe connected to both the vacuum pump and the air pump. One end of the first air pipe away from the air pump and the vacuum pump is plugged into the barrel body.

[0007] By adopting the above technical solution, the air pump can provide additional air intake for the vacuum pump, thereby increasing the speed of vacuuming and reaching the required vacuum degree more quickly. It can also maintain the vacuum in the steam drying drum when the vacuum pump stops working.

[0008] Furthermore, a second air pipe connected to the output end of the vacuum pump, a third air pipe connected to the air pump and a three-way joint are provided, and the three-way joint is connected to the first air pipe, the second air pipe and the third air pipe respectively.

[0009] By adopting the above technical solution, the three-way joint and the second air pipe and the third air pipe realize the connection between the vacuum pump and the air pump, so as to adjust the vacuum degree.

[0010] Furthermore, the regulating assembly includes a proportional regulating valve connected to the vacuum pump and the barrel.

[0011] By adopting the above technical solution and using a proportional control valve, the vacuum degree in the drying drum can be accurately controlled to match the required dried liquid.

[0012] Furthermore, a manual baffle valve is provided between the proportional control valve and the vacuum pump.

[0013] By adopting the above technical solution, when there is a problem with the automatic control system, the manual flapper valve can also be used as an alternative solution. This can provide users with a reliable backup guarantee to ensure the continuous and stable operation of the vacuum system.

[0014] Furthermore, the vacuum detection component is a vacuum gauge fixedly mounted on the top of the sealing cover and a detection end of which is plugged into the barrel body.

[0015] By adopting the above technical solution, the vacuum gauge can detect the internal vacuum degree.

[0016] Furthermore, a sealing rubber ring is provided at the connecting end surface between the sealing cover and the barrel body.

[0017] By adopting the above technical solution, the sealing rubber ring can improve the sealing degree and better perform precise vacuuming processing.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model can monitor the vacuum degree in the evaporation barrel in real time by being inserted on the top of the evaporation barrel, and can assist the vacuum proportion regulating valve to adjust the vacuum degree in the barrel to a vacuum degree suitable for the required evaporated liquid, effectively preventing small crystals from being drawn into the vacuum pump to cause damage and evaporating non-target liquids.

[0020] 2. The utility model further provides an air pump beside the vacuum pump, which can provide additional air intake for the vacuum pump, thereby increasing the speed of air extraction and achieving the required vacuum degree more quickly. The air pump can also maintain the vacuum in the steam-drying drum when the vacuum pump stops working.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of this embodiment;

[0023] Figure 2 is an overall schematic diagram of this embodiment;

[0024] Figure 3 This is an exploded view of the steam drying drum structure of this embodiment.

[0025] In the figure: 1. Steam drying barrel; 2. Sealing rubber ring; 3. Sealing cover; 4. Barrel body; 5. Adjustable pressure reducing mechanism; 51. Vacuum pump; 52. Air pump; 53. First air pipe; 54. Second air pipe; 55. Third air pipe; 56. Three-way joint; 6. Adjustment assembly; 61. Proportional control valve; 62. Manual baffle valve; 7. Vacuum gauge. DETAILED DESCRIPTION

[0026] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0027] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "top", "inner", "outer" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0028] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0029] like Figures 1 to 3 As shown, a vacuum evaporation device includes a evaporation barrel 1 for evaporating waste liquid, a compressor connected to the evaporation barrel 1 for providing high temperature for evaporation, and an evaporator arranged on the top of the evaporation barrel 1 and connected to the evaporation barrel 1 for cooling the rising steam of the evaporation barrel 1 into liquid. The evaporation barrel 1 included in this embodiment includes a barrel body 4 and a sealing cover 3 covered on the barrel body 4, and an adjustable decompression mechanism 5 is also provided beside the barrel body 4. The adjustable decompression mechanism 5 also includes an adjustment component 6, and a vacuum detection component for detecting the vacuum degree in the evaporation barrel 1 is also fixed on the top of the sealing cover 3.

[0030] Specifically, in this embodiment, a sealing rubber ring 2 is provided at the connecting end surface of the sealing cover 3 and the barrel body 4 to isolate external air from entering the barrel body 4 and prevent vacuum leakage from causing inaccurate vacuum degree; a mounting frame is installed at the side end of the barrel body 4, and a vacuum pump 51, a first air pipe 53 and an air pump 52 located next to the vacuum pump 51 are fixed on the mounting frame. The vacuum pump 51 cooperates with the first air pipe 53 inserted in the steam-drying barrel 1 to evacuate the steam-drying barrel 1, and the air pump 52 can provide additional air intake for the vacuum pump 51, thereby increasing the speed of air extraction and achieving the required vacuum degree more quickly. When the vacuum pump 51 stops working, the vacuum in the steam-drying barrel 1 can be maintained, and there is no need for the vacuum pump 51 to repeatedly operate.

[0031] like Figure 3 As shown, the vacuum pump 51 and the air pump 52 are respectively provided with a second air pipe 54 and a third air pipe 55, and a three-way joint 56 is provided. The three-way joint 56 is respectively connected to the first air pipe 53, the second air pipe 54 and the third air pipe 55 to realize the connection between the vacuum pump 51, the air pump 52 and the barrel body 4, so as to adjust the vacuum degree in the barrel body 4.

[0032] To more accurately adjust the vacuum degree in the barrel 4, Figure 2 As shown, a vacuum gauge 7 is provided on the sealing cover 3, and the detection end of the vacuum gauge 7 extends into the barrel body 4, which can detect the internal vacuum degree in real time to prevent the vacuum from being too high or too low; a vacuum ratio regulating valve 61 is also provided between the barrel body 4 and the three-way joint 56, and the first air pipe 53 is inserted from the air inlet end of the vacuum ratio regulating valve 61, and the other end is connected to the output end of the vacuum ratio regulating valve 61 and then inserted into the barrel body 4. The air intake of different vacuum pumps 51 can be adjusted by the vacuum ratio regulating valve 61, and the vacuum degree in the entire barrel body 4 can be accurately controlled in combination with the vacuum gauge 7.

[0033] In order to prevent problems with the vacuum proportional control valve 61 and the automatic control system that controls the entire vacuum adjustment mechanism, a manual baffle valve is provided between the proportional control valve 61 and the vacuum pump 51. The manual baffle valve 62 can also be used as an alternative. This can provide users with a reliable backup guarantee to ensure the continuous and stable operation of the vacuum system.

[0034] The working principle of this embodiment is: this embodiment can monitor the vacuum degree in the evaporation barrel 1 in real time by being inserted on the top of the evaporation barrel 1, and can assist the vacuum ratio regulating valve 61 to adjust the vacuum degree in the barrel to a suitable vacuum degree for the required evaporation liquid, effectively preventing small crystals from being drawn into the vacuum pump 51 to cause damage and evaporating non-target liquids. In addition, an air pump 52 is provided beside the vacuum pump 51, and the air pump 52 can provide additional air intake for the vacuum pump 51, thereby increasing the speed of air extraction, achieving the required vacuum degree faster, and maintaining the vacuum in the evaporation barrel 1 when the vacuum pump 51 stops working. The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the protection scope of the utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model belong to the protection scope of the utility model.

Claims

1. A vacuum evaporation device, comprising a evaporation drum for evaporating waste liquid, a compressor connected to the evaporation drum for providing high temperature for evaporation, and an evaporator arranged on the top of the evaporation drum and connected to the evaporation drum for cooling steam into liquid, characterized in that: The steam-drying barrel comprises a barrel body and a sealing cover arranged on the barrel body. An adjustable decompression mechanism is also arranged on the side of the barrel body. The adjustable decompression mechanism comprises an adjusting component for adjusting the vacuum degree in the steam-drying barrel. A vacuum detection component for detecting the vacuum degree in the steam-drying barrel is also fixed on the top of the sealing cover.

2. A vacuum evaporation equipment according to claim 1, characterized in that: The adjustable decompression mechanism includes a vacuum pump, an air pump connected to the vacuum pump, and a first air pipe connected to both the vacuum pump and the air pump. One end of the first air pipe away from the air pump and the vacuum pump is plugged into the barrel.

3. A vacuum evaporation equipment according to claim 2, characterized in that, A second air pipe connected to the output end of the vacuum pump, a third air pipe connected to the air pump and a three-way joint are also provided. The three-way joint is connected to the first air pipe, the second air pipe and the third air pipe respectively.

4. A vacuum evaporation equipment according to claim 3, characterized in that: The regulating assembly comprises a proportional regulating valve connected to the vacuum pump and the barrel body, and the first air pipe is arranged through the proportional regulating valve.

5. A vacuum evaporation equipment according to claim 4, characterized in that: A manual baffle valve is also provided between the proportional regulating valve and the vacuum pump.

6. A vacuum evaporation equipment according to claim 5, characterized in that: The vacuum detection component is a vacuum gauge fixedly arranged on the top of the sealing cover and a detection end thereof is inserted into the barrel body.

7. A vacuum evaporation and drying equipment according to claim 6, characterized in that: A sealing rubber ring is also provided at the connecting end surface between the sealing cover and the barrel body.

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