Vacuum evaporator capable of recycling steam

Abstract

A vacuum evaporator capable of recycling steam comprises an evaporation tank, a gear motor, a gas-liquid separator, a condenser, a liquid collection tank and a steam recovery system, the gear motor is arranged at the top of the evaporation tank, the steam recovery system is arranged at the bottom of the evaporation tank, the top of the evaporation tank is connected with the gas-liquid separator through a pipeline, the gas-liquid separator is connected with the condenser, and the condenser is connected with the liquid collection tank. And the condenser is connected with the liquid collecting tank. The steam recovery system comprises a recovery pipe, a normal-pressure water tank, a cold water cooling water tank, a steam generator and an air inlet pipe. Compared with the prior art, the steam recycling system is additionally arranged, so that steam needing to be discharged is successfully converted into reusable new steam as much as possible; a traditional soft water generator structure is removed, and consumption of water resources is greatly reduced.

Description

Technical Field

[0001] The utility model relates to Chinese medicine processing and concentrating equipment, in particular to a vacuum evaporator with circulatively reusable steam. Background Art

[0002] After the traditional Chinese medicine vacuum evaporator is finished working, the steam inside is usually discharged directly into the sewer after cooling at the discharge end because the heat has been consumed. After that, the soft water generator will be needed to continuously pass through the steam generator to convert it into steam to supplement the Chinese medicine vacuum evaporator. The soft water generator that works non-stop will work non-stop, which will eventually cause a large amount of water resources to be wasted every year. If the Chinese medicine vacuum evaporator directly circulates the steam to the steam generator, it cannot be circulated because the steam generator is essentially a liquid heating device, and its principle is to heat the liquid into gas and then turn it into steam for use. Therefore, the biggest problem is how to reuse the used steam in the steam generator.

[0003] To solve the above problems, we made a series of improvements. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum evaporator with recyclable steam to overcome the above-mentioned shortcomings and deficiencies in the prior art.

[0005] A vacuum evaporator with recyclable steam, comprising: an evaporation tank, a reduction motor, a gas-liquid separator, a condenser, a liquid collecting tank and a steam recovery system, wherein the reduction motor is provided on the top of the evaporation tank, the steam recovery system is provided on the bottom of the evaporation tank, the top of the evaporation tank is connected to the gas-liquid separator through a pipeline, the gas-liquid separator is connected to the condenser, and the condenser is connected to the liquid collecting tank;

[0006] Wherein, the steam recovery system includes: a recovery pipe, a normal pressure water tank, a cold water cooling water tank, a steam generator and an air intake pipe, one end of the recovery pipe is connected to the evaporation tank, and the other end of the recovery pipe is connected to the normal pressure water tank, the normal pressure water tank is connected to the cold water cooling water tank through a pipeline, the cold water cooling water tank is connected to the steam generator through a pipeline, and the steam generator is connected to the evaporation tank through the air intake pipe.

[0007] Furthermore, the evaporation tank includes: an evaporation structure, a solenoid valve, a vacuum gauge, a feed ball valve, a scraper stirring and a steam regulating valve, the solenoid valve and the vacuum gauge are connected to the top of the evaporation structure, the feed ball valve is connected to the side of the evaporation structure, the scraper stirring is arranged inside the evaporation structure, the upper end of the scraper stirring is connected to the reduction motor, and the steam regulating valve is connected to the lower end of the evaporation structure.

[0008] Furthermore, a pipeline sight glass and a drain valve are provided at the lower end of the gas-liquid separator, the pipeline sight glass is connected to the lower end of the gas-liquid separator, and the drain valve is connected to the gas-liquid separator through a pipeline.

[0009] Furthermore, the liquid collecting tank is provided with a three-way valve, a flange sight glass and a liquid collecting tank butterfly valve, one end of the three-way valve is connected to the liquid collecting tank, the other end of the three-way valve is connected to the condenser, the flange sight glass is connected to the liquid collecting tank, and the liquid collecting tank butterfly valve is connected to the bottom of the liquid collecting tank.

[0010] Furthermore, a heightening bracket is provided at the bottom of the normal pressure water tank.

[0011] Beneficial effects of the utility model:

[0012] Compared with the traditional technology, the utility model successfully converts as much steam as possible to be discharged into reusable new steam by adding a steam recovery system; removes the traditional soft water generator structure, and greatly reduces the consumption of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Reference numerals:

[0015] The evaporation tank 100 , the evaporation structure 110 , the solenoid valve 120 , the vacuum gauge 130 , the feed ball valve 140 , the scraper stirring 150 and the steam regulating valve 160 .

[0016] The reduction motor 200 , the gas-liquid separator 300 , the pipeline sight glass 310 and the drain valve 320 .

[0017] Condenser 400 , liquid collecting tank 500 , three-way valve 510 , flange sight glass 520 and liquid collecting tank butterfly valve 530 .

[0018] and a steam recovery system 600 , a recovery pipe 610 , a normal pressure water tank 620 , a heightening bracket 621 , a cold water cooling water tank 630 , a steam generator 640 and an air intake pipe 650 . DETAILED DESCRIPTION

[0019] The following is a further description of the present invention in conjunction with specific embodiments. It should be understood that the following embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0020] Example 1

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] like Figure 1As shown, a vacuum evaporator with recyclable steam includes: an evaporation tank 100, a reduction motor 200, a gas-liquid separator 300, a condenser 400, a liquid collecting tank 500 and a steam recovery system 600. The reduction motor 200 is provided at the top of the evaporation tank 100, and the steam recovery system 600 is provided at the bottom of the evaporation tank 100. The top of the evaporation tank 100 is connected to the gas-liquid separator 300 through a pipeline, the gas-liquid separator 300 is connected to the condenser 400, and the condenser 400 is connected to the liquid collecting tank 500.

[0023] Among them, the steam recovery system 600 includes: a recovery pipe 610, a normal pressure water tank 620, a cold water cooling water tank 630, a steam generator 640 and an air intake pipe 650. One end of the recovery pipe 610 is connected to the evaporation tank 100, and the other end of the recovery pipe 610 is connected to the normal pressure water tank 620. The normal pressure water tank 620 is connected to the cold water cooling water tank 630 through a pipeline. The cold water cooling water tank 630 is connected to the steam generator 640 through a pipeline. The steam generator 640 is connected to the evaporation tank 100 through the air intake pipe 650.

[0024] The evaporation tank 100 includes: an evaporation structure 110, a solenoid valve 120, a vacuum gauge 130, a feed ball valve 140, a scraper stirring 150 and a steam regulating valve 160. The solenoid valve 120 and the vacuum gauge 130 are connected to the top of the evaporation structure 110, the feed ball valve 140 is connected to the side of the evaporation structure 110, the scraper stirring 150 is arranged inside the evaporation structure 110, the upper end of the scraper stirring 150 is connected to the reduction motor 200, and the steam regulating valve 160 is connected to the lower end of the evaporation structure 110.

[0025] A pipeline sight glass 310 and a drain valve 320 are provided at the lower end of the gas-liquid separator 300 . The pipeline sight glass 310 is connected to the lower end of the gas-liquid separator 300 , and the drain valve 320 is connected to the gas-liquid separator 300 through a pipeline.

[0026] The liquid collecting tank 500 is provided with a three-way valve 510, a flange sight glass 520 and a liquid collecting tank butterfly valve 530. One end of the three-way valve 510 is connected to the liquid collecting tank 500, and the other end of the three-way valve 510 is connected to the condenser 400. The flange sight glass 520 is connected to the liquid collecting tank 500, and the liquid collecting tank butterfly valve 530 is connected to the bottom of the liquid collecting tank 500.

[0027] A support bracket 621 is provided at the bottom of the normal pressure water tank 620 .

[0028] Currently, traditional vacuum evaporators cannot directly utilize the discharged steam for circulation. Secondly, the recycling rate is low and water replenishment is still required.

[0029] The innovation of the utility model is that, first of all, a steam recovery system 600 is added. The steam recovery system 600 includes a steam generator 640 that originally generates steam, and the recovered steam is converted into new steam for use by the evaporation tank 100 through the steam generator 640. However, in order to solve the above problem, we have added an additional atmospheric water tank 620, because the steam generator 640 can only heat liquid water. The steam is recovered to the atmospheric water tank 620 through the recovery pipe 610 to achieve liquefaction. However, a new problem arises afterwards. As a heating system, the steam generator 640 has a thermal protection device, so directly allowing the steam to be converted into liquid water and let the steam generator 640 process it will cause the steam generator 640 to shut down. In order to solve this problem, we cool the high-temperature liquid water through the cold water cooling tank 630, and then the cooling water is passed through the steam generator 640 to generate new steam, and then returned to the evaporation tank 100 through the air intake pipe 650 to complete the cycle. This avoids the trouble of modifying the structure of the steam generator 640 itself. Such a structure has the following advantages: first, it solves the problem that traditional steam cannot be used; second, the utilization rate of steam is high, so the traditional soft water generator can be eliminated, and there is no need for normal water replenishment. Only occasional water replenishment is required during the intermittent process to replenish the small amount of steam lost during the circulation process; finally, the stability problem of liquid water is further reduced by cooling the water tank 630 with cold water, avoiding high temperature causing the steam generator 640 to shut down.

[0030] Finally, there is another problem, which is the height difference between the liquid level of the atmospheric pressure water tank 620 and the liquid level of the steam generator 640. During use, we found that the liquid water circulation structure of this circulation system is simple and lacks power transmission. Therefore, it is necessary to increase the height below the atmospheric pressure water tank 620 so that the liquid level of the atmospheric pressure water tank 620 is higher than the liquid level of the steam generator 640, thereby realizing water circulation.

[0031] In summary, compared with the traditional technology, the utility model successfully converts as much steam as possible that needs to be discharged into reusable new steam by adding a steam recovery system; removes the traditional soft water generator structure, and greatly reduces the consumption of water resources.

[0032] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. A vacuum evaporator with recyclable steam, characterized in that: include: An evaporation tank (100), a reduction motor (200), a gas-liquid separator (300), a condenser (400), a liquid collecting tank (500), and a steam recovery system (600); the top of the evaporation tank (100) is provided with a reduction motor (200); the bottom of the evaporation tank (100) is provided with a steam recovery system (600); the top of the evaporation tank (100) is connected to the gas-liquid separator (300) through a pipeline; the gas-liquid separator (300) is connected to the condenser (400); and the condenser (400) is connected to the liquid collecting tank (500); The steam recovery system (600) comprises: a recovery pipe (610), a normal pressure water tank (620), a cold water cooling water tank (630), a steam generator (640) and an air intake pipe (650); one end of the recovery pipe (610) is connected to the evaporation tank (100); the other end of the recovery pipe (610) is connected to the normal pressure water tank (620); the normal pressure water tank (620) is connected to the cold water cooling water tank (630) through a pipeline; the cold water cooling water tank (630) is connected to the steam generator (640) through a pipeline; and the steam generator (640) is connected to the evaporation tank (100) through the air intake pipe (650).

2. A vacuum evaporator with recyclable steam according to claim 1, characterized in that: The evaporation tank (100) comprises: an evaporation structure (110), a solenoid valve (120), a vacuum gauge (130), a feed ball valve (140), a scraper stirring device (150) and a steam regulating valve (160); the solenoid valve (120) and the vacuum gauge (130) are connected to the top of the evaporation structure (110); the feed ball valve (140) is connected to the side of the evaporation structure (110); the scraper stirring device (150) is arranged inside the evaporation structure (110); the upper end of the scraper stirring device (150) is connected to a reduction motor (200); and the steam regulating valve (160) is connected to the lower end of the evaporation structure (110).

3. The vacuum evaporator with recyclable steam according to claim 1, characterized in that: A pipeline sight glass (310) and a drain valve (320) are provided at the lower end of the gas-liquid separator (300); the pipeline sight glass (310) is connected to the lower end of the gas-liquid separator (300); and the drain valve (320) is connected to the gas-liquid separator (300) via a pipeline.

4. The vacuum evaporator with recyclable steam according to claim 1, characterized in that: The liquid collecting tank (500) is provided with a three-way valve (510), a flange sight glass (520) and a liquid collecting tank butterfly valve (530); one end of the three-way valve (510) is connected to the liquid collecting tank (500), the other end of the three-way valve (510) is connected to the condenser (400), the flange sight glass (520) is connected to the liquid collecting tank (500), and the liquid collecting tank butterfly valve (530) is connected to the bottom of the liquid collecting tank (500).

5. The vacuum evaporator with recyclable steam according to claim 1, characterized in that: A raising bracket (621) is provided at the bottom of the normal pressure water tank (620).

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