MVR distillation and concentration device for pharmaceutical production

Abstract

The invention provides an MVR distillation and concentration device for pharmaceutical production, and relates to the field of pharmaceutical concentration. The MVR distillation and concentration device for pharmaceutical production comprises a concentration table, an evaporation tank is arranged on the inner side of the concentration table and used for evaporating and converting liquid medicine into gas, the surface of the evaporation tank is communicated with a steam cylinder and used for storing steam, and a compression mechanism is arranged on the inner side of the steam cylinder and used for compressing the steam. According to the MVR distillation and concentration device for pharmaceutical production, liquid medicine is evaporated into the inner side of the steam cylinder through the evaporation tank, steam on the inner side of the steam cylinder is compressed through the compression mechanism, so that the steam forms small water drops to be adhered to the inner wall of the compression bin, and compressed substances which still keep gas are cooled and discharged through the output assembly; the liquid substance is circularly evaporated, so that the liquid medicine is concentrated and separated, the concentration effect is achieved by extruding the steam to separate the liquid medicine, and the problems that a large amount of heat and steam can be released and consumed by direct distillation during liquid medicine concentration, and the cooling time and process are relatively tedious are solved.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical concentration, specifically to an MVR distillation and concentration apparatus for pharmaceutical production. Background Technology

[0002] MVR evaporators are a new type of high-efficiency and energy-saving evaporation equipment mainly used in the pharmaceutical industry. This equipment uses low-temperature and low-pressure steam technology and clean energy to generate steam, separating water from the medium. It represents internationally advanced evaporation technology and is an upgraded replacement for traditional evaporators. Unlike ordinary single-effect or multi-effect falling film evaporators, MVR evaporators are single-unit evaporators that integrate the functions of multi-effect falling film evaporators. Depending on the required product concentration, they employ segmented evaporation. If the product does not reach the desired concentration after its first pass through the evaporator, the product is drawn back to the top of the evaporator by a vacuum pump at the bottom of the evaporator through external piping, passing through the evaporator again. This repeated process of passing through the evaporator achieves the desired concentration.

[0003] A search revealed Chinese patent CN104437089B, which discloses a fruit juice concentration membrane distillation device, including a detachable membrane module, a thermal circulation system, and a cold circulation system. Using the detachable membrane distillation module as its core, and based on the principle of membrane distillation concentration and separation, the device monitors the temperature of the feed liquid and condensate in real time. This temperature difference can be adjusted to stabilize the feed liquid and condensate at a preset temperature, achieving a constant preset temperature difference for optimal concentration. A flow sensor is installed on the feed liquid pipeline to control the flow rate under optimal conditions based on real-time measurement data. This technology uses a membrane distillation device to concentrate fruit juice, achieving a stable temperature difference through precise temperature control on both sides of the membrane. It applies semiconductor refrigeration technology to the condensation system to achieve energy saving and emission reduction. However, this technology requires a relatively long temperature assimilation interval between the distillation and condensation processes due to the interlacing of pipelines during distillation.

[0004] CN108854133A discloses a stirring type energy-saving distillation and concentration device for pharmaceutical production. The condenser tank and the vacuum pump are connected by a pipeline, and the condenser tank is connected with the upper end of the distillation chamber through an exhaust pipe. The distillation chamber is internally provided with heat-conducting fins fixedly connected with the exhaust pipe penetrating into the distillation chamber, and the heat-conducting fins are fixed on the inner wall and top surface of the upper end of the distillation chamber. The top of the distillation chamber is provided with a telescopic cylinder, and the telescopic cylinder extending into the distillation chamber is connected with a stirring device arranged in the distillation chamber and drives the stirring device to stir the liquid in the distillation chamber in forward and reverse directions through the telescopic cylinder. The heat-conducting fins effectively bring the heat carried away by the steam into the distillation chamber through heat conduction, greatly reducing the heat loss, and making full use of the heat carried away by the steam. The liquid in the distillation chamber is uniformly heated after being stirred in forward and reverse directions by the stirring device, avoiding the scaling phenomenon at the bottom of the distillation chamber, and improving the distillation and concentration efficiency. The technology uses a condenser for cooling, which needs a long cooling time and a lot of energy to complete the cooling condensation in the tank-shaped space. Moreover, the condensation only utilizes temperature difference, which needs a lot of energy and a long time.

[0005] The existing distillation and concentration device directly distills the liquid during concentration, which releases and consumes a large amount of heat and steam, and the cooling time and process are complicated and difficult to operate. Moreover, the distillation and concentration is seriously wasted, and the energy-saving and low-consumption effect cannot be achieved. Therefore, an MVR distillation and concentration device for pharmaceutical production is proposed to solve the above problems. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides an MVR distillation and concentration device for pharmaceutical production, which solves the problems raised in the above background art.

[0007] To achieve the above purposes, the present application realizes the following technical scheme: an MVR distillation and concentration device for pharmaceutical production, comprising a concentration table, an evaporation tank is arranged on the inner side of the concentration table, which is used to evaporate and convert the liquid into gas, a steam cylinder is connected to the surface of the evaporation tank, which is used to store steam, a compression mechanism is arranged on the inner side of the steam cylinder, which is used to compress the steam, a collection tank is connected to the lower end of the steam cylinder through a discharge pipeline, a transfer pipe is connected to the lower end of the steam cylinder, the transfer pipe is above the discharge pipeline, and a removal cylinder is connected to the end of the transfer pipe away from the steam cylinder. A discharge mechanism is arranged on the upper end of the removal cylinder, a defoaming mechanism is arranged on the inner side of the removal cylinder, the lower end of the removal cylinder is communicated with the collection tank, the collection tank is communicated with the upper side of the evaporation tank through a pipeline, a one-way valve is arranged on the inner side of the pipeline, an output assembly is connected to the surface of the steam cylinder, a cooling mechanism is arranged on the surface of the concentration table, which is used to cool the output assembly.

[0008] Preferably, the steam cylinder comprises a piston cylinder, a separation chamber, a compression chamber and a sealing chamber, the separation chamber is arranged at the lower end of the piston cylinder, the compression chamber is arranged above the piston cylinder, the sealing chamber is an independent chamber arranged above the compression chamber, the separation chamber is divided into an upper chamber and a lower chamber, the upper chamber and the lower chamber are communicated through a circular hole, the inner walls of the upper and lower ends of the compression chamber are conical surfaces, a guide plate is arranged on the inner side of the compression chamber, and the cross section of the guide plate is crescent-shaped.

[0009] Preferably, the compression mechanism comprises an eccentric disc, a key is arranged at the edge of the end face of the eccentric disc, a driving frame is sleeved outside the key, a piston shaft is connected to the surface of the driving frame, the lower end of the piston shaft is arranged as a conical disc, and the conical disc is in sliding contact with the inner wall of the piston cylinder.

[0010] Preferably, the transfer pipe is in the shape of a pipeline, a one-way valve and a pump body are arranged in the middle section of the transfer pipe, the transfer pipe is communicated with the upper chamber, and is used for transporting substances on the inner side of the upper chamber.

[0011] Preferably, the exhaust mechanism comprises an exhaust pipe, an air guide wheel is arranged on the inner side of the exhaust pipe, the middle section of the exhaust pipe is bulged and wrapped outside the air guide wheel, and a hole is arranged in the upper section of the exhaust pipe for exhausting gas.

[0012] Preferably, the defoaming mechanism comprises a defoaming mesh plate, a water permeation disc and an expansion disc, the defoaming mechanism is used for destroying the foam structure in the liquid, the water permeation disc is used for making the liquid permeate to reduce the gas bubbles in the liquid, and the defoaming mesh plate, the water permeation disc and the expansion disc are arranged and distributed in sequence from top to bottom on the inner side of the cylinder.

[0013] Preferably, the defoaming mesh plate is in the shape of a disc with mesh holes at the lower end, and a spike is arranged at the upper end of the disc for eliminating foam.

[0014] Preferably, the evaporation tank comprises a tank body, a buffer plate is arranged at the upper end of the inner side of the tank body, a flow stabilizing plate is arranged on the inner side of the tank body and below the buffer plate, a filter screen plate is arranged on the inner side of the tank body and below the flow stabilizing plate, a wall flow rod is arranged on the inner side of the tank body, so that the liquid flows downward along the outer wall, heating holes are arranged on the side wall of the tank body and correspond to the wall flow rod in position, a partition plate is arranged at the lower end of the tank body, and two groups of circulating pumps are arranged on the outer side of the tank body, so that the liquid circulates in the tank body.

[0015] Preferably, the output assembly comprises a cooling pipeline and a storage tank, the cooling pipeline realizes cooling by using a cooling mechanism and an "S"-shaped appearance, and a pressure valve is arranged on the inner side of the inlet end of the cooling pipeline.

[0016] Preferably, the flow stabilizing plate is composed of a disc and a circular pipe, the disc is fixedly connected to the inner side of the tank body, the circular pipe is arranged through the surface of the disc, and the upper end of the circular pipe protrudes from the upper surface of the disc.

[0017] Compared with the prior art, the present application has the following beneficial effects: The pharmaceutical production MVR distillation concentration device, through the evaporation tank, makes the liquid medicine evaporate into the inside of the steam cylinder, and through the compression mechanism, the steam in the inside of the steam cylinder is compressed, so that the steam forms small water droplets and adheres to the inner wall of the compression bin, and through the output assembly, the substances still maintaining gas after compression are cooled and discharged, so that the liquid substances are circulated and evaporated, so as to concentrate and separate the liquid medicine, and through the steam separation of the liquid medicine, the concentration effect is achieved, and the problem that a large amount of heat and steam is released and consumed during direct distillation of the liquid medicine concentration is solved.

[0018] The pharmaceutical production MVR distillation concentration device, through the evaporation tank, makes the liquid medicine evaporate into the inside of the steam cylinder, and through the compression mechanism, the steam in the inside of the steam cylinder is compressed, so that the steam forms small water droplets and adheres to the inner wall of the compression bin, and through the output assembly, the substances still maintaining gas after compression are cooled and discharged, so that the liquid substances are circulated and evaporated, so as to concentrate and separate the liquid medicine, and through the steam separation of the liquid medicine, the concentration effect is achieved, and the problem that a large amount of heat and steam is released and consumed during direct distillation of the liquid medicine concentration is solved.

[0019] The pharmaceutical production MVR distillation concentration device, through the evaporation tank, makes the liquid medicine evaporate into the inside of the steam cylinder, and through the compression mechanism, the steam in the inside of the steam cylinder is compressed, so that the steam forms small water droplets and adheres to the inner wall of the compression bin, and through the output assembly, the substances still maintaining gas after compression are cooled and discharged, so that the liquid substances are circulated and evaporated, so as to concentrate and separate the liquid medicine, and through the steam separation of the liquid medicine, the concentration effect is achieved, and the problem that a large amount of heat and steam is released and consumed during direct distillation of the liquid medicine concentration is solved.

[0020] The pharmaceutical production MVR distillation concentration device, through the evaporation tank, makes the liquid medicine evaporate into the inside of the steam cylinder, and through the compression mechanism, the steam in the inside of the steam cylinder is compressed, so that the steam forms small water droplets and adheres to the inner wall of the compression bin, and through the output assembly, the substances still maintaining gas after compression are cooled and discharged, so that the liquid substances are circulated and evaporated, so as to concentrate and separate the liquid medicine, and through the steam separation of the liquid medicine, the concentration effect is achieved, and the problem that a large amount of heat and steam is released and consumed during direct distillation of the liquid medicine concentration is solved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 4 It is a schematic diagram of the overall structure of the present application; Figure 5 It is a schematic diagram of the overall structure of the present application; Figure 6 It is a schematic diagram of the overall structure of the present application; Figure 7 It is a schematic diagram of the overall structure of the present application; Figure 8 Structure diagram of defoaming mechanism of the application; Figure 9 Structure diagram of guide wheel of the application.

[0022] In the figure: 1, concentration platform; 2, evaporation tank; 21, tank body; 22, buffer plate; 23, steady flow plate; 24, filter screen plate; 25, wall flow rod; 26, circulating pump; 3, steam cylinder; 31, piston cylinder; 32, separation bin; 321, upper chamber; 322, lower chamber; 33, compression bin; 331, guide plate; 34, sealing bin; 4, compression mechanism; 41, eccentric disc; 42, toggle frame; 43, piston shaft; 5, collection box; 6, transfer pipe; 7, elimination cylinder; 8, discharge mechanism; 81, exhaust pipe; 82, guide wheel; 9, defoaming mechanism; 91, defoaming screen plate; 92, water seepage disc; 93, telescopic disc; 10, output assembly; 101, cooling pipeline; 102, storage tank; 11, cooling mechanism. DETAILED DESCRIPTION

[0023] 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0027] As shown in Figures 1-9 A pharmaceutical production MVR distillation concentration device, including concentration platform 1, used for erecting device, convenient device construction and climbing operation, concentration platform 1 inside is provided with evaporation tank 2, for converting liquid medicine into gas, evaporation tank 2 includes tank body 21, the upper end of the inside of tank body 21 is provided with buffer plate 22, the buffer plate 22 can eliminate the impact force of water flow falling from the pipeline through the surface of the set of thorn plate, through the setting of thorn plate can eliminate the splashing of liquid impact, the inside of tank body 21 is provided with steady flow plate 23, the steady flow plate 23 is arranged below the buffer plate 22, the inside of tank body 21 is provided with filter screen plate 24, the filter screen plate 24 is arranged below the steady flow plate 23, the inside of tank body 21 is provided with wall flow rod 25, so that the liquid flows downward along the outer wall, the sidewall of tank body 21 is provided with heating hole, the position of heating hole corresponds to wall flow rod 25, the lower end of tank body 21 is provided with partition, the outside of tank body 21 is provided with two groups of circulating pumps 26, so that the liquid circulates in tank body 21, the evaporation tank 2 is used for storing liquid medicine and making liquid medicine contact with hot gas by setting tank body 21, the impact of pipeline liquid is eliminated by setting buffer plate 22, the liquid medicine can be fully evaporated by setting wall flow rod 25, the circulating pump 26 and the related pipeline are arranged on both sides of the lower end of tank body 21, so that the liquid medicine can be rotated and evaporated in the inside of tank body 21, so that the heat is fully utilized to achieve the effect of energy saving.

[0028] The steady flow plate 23 is composed of a disc and a pipe, the disc is fixedly connected to the inside of the tank body 21, the pipe is arranged through the surface of the disc, the upper end of the pipe is protrudingly arranged higher than the upper surface of the disc, the steady flow plate 23 is arranged with the pipe higher than the disc, so that the liquid needs to overflow from the top of the pipe when penetrating through the steady flow plate 23, so that the liquid is more uniform and stable when penetrating.

[0029] The surface of the evaporation tank 2 is communicated with a steam cylinder 3 for storing steam, the steam cylinder 3 comprises a piston cylinder 31, a separation bin 32, a compression bin 33 and a sealing bin 34, the separation bin 32 is arranged at the lower end of the piston cylinder 31, the compression bin 33 is arranged above the piston cylinder 31, the sealing bin 34 is an independent cabin arranged above the compression bin 33, the separation bin 32 is divided into an upper chamber 321 and a lower chamber 322, the upper chamber 321 and the lower chamber 322 are communicated through a circular hole, the inner walls of the upper and lower ends of the compression bin 33 are conical surfaces, a guide plate 331 is arranged on the inner side of the compression bin 33, the cross section of the guide plate 331 is crescent-shaped, the steam cylinder 3 is provided with the compression bin 33 and the separation bin 32, so that the steam entering the inner side of the piston cylinder 31 is compressed in the inner side of the compression bin 33, and the conical surface of the inner wall of the compression bin 33 makes the water droplets flow downward, the separation bin 32 is provided with the upper chamber 321 and the lower chamber 322, so that the substances entering the inner side of the separation bin 32 can be separated into upper and lower two parts, and the effect of different substances being layered and discharged is realized by opening the corresponding pipelines.

[0030] A compression mechanism 4 is arranged on the inner side of the steam cylinder 3 for compressing steam, the compression mechanism 4 comprises an eccentric disc 41, a protruding key is arranged at the edge position of the end surface of the eccentric disc 41, a poking frame 42 is sleeved outside the protruding key, a piston shaft 43 is connected to the surface of the poking frame 42, the poking frame 42 is driven by the eccentric disc 41 to move up and down, so that the moving track of the piston shaft 43 is more stable, and the steam can be more stably extruded in a small range, the lower end of the piston shaft 43 is arranged as a conical disc which is in sliding contact with the inner wall of the piston cylinder 31, the compression mechanism 4 rotates the poking frame 42 up and down through the eccentric disc 41, so that the piston shaft 43 compresses the steam in the inner side of the piston cylinder 31, the part of the steam with more water content forms water droplets, and the gas and the compressed liquid are separated, when the drug solution dissolved in water is concentrated and separated, the steam with more water content is adhered to the inner wall of the compression bin 33 by the compression of the piston shaft 43 in the inner side of the piston cylinder 31, so as to eliminate the proportion of the partial water vapor in the compressed steam, thereby reducing the water content in the drug solution, achieving separation, when the small particle-shaped drug solution mixed with water is concentrated and separated, the powder particles in the drug solution as nuclei are easy to adhere to the surrounding steam water droplets in the process of compressing the steam, compared with pure steam, the powder particles will first adhere to the steam water droplets to increase their weight and fall to the inner wall of the compression bin 33, at this time, the water vapor after purification is discharged from the upper part, and the drug solution after concentrated separation falls into the separation bin 32, and the effect of purification and concentration is achieved by repeatedly circulating the drug solution in the steam cylinder 3.

[0031] The lower end of the steam cylinder 3 is connected with the collecting box 5 through the exhaust pipeline, the lower end of the steam cylinder 3 is connected with the transfer pipe 6, the transfer pipe 6 is in the shape of a pipeline, a one-way valve and a pump body are arranged in the middle section of the transfer pipe 6, the transfer pipe 6 is communicated with the upper chamber 321, and is used for transporting the substances inside the upper chamber 321, the transfer pipe 6 is communicated with the upper chamber 321 and is provided with the one-way valve and the pump body, so that the transfer pipe 6 can be selectively opened, the substances inside the upper chamber 321 can be selectively communicated and transferred, the one-way valve and the pump body arranged on the transfer pipe 6 also prevent the backflow of the foam and gas discharged from the upper chamber 321, and prevent the backflow of the gas into the piston cylinder 31 during the descending process of the piston shaft 43, thereby affecting the compression of the steam.

[0032] The transfer pipe 6 is above the exhaust pipeline, one end of the transfer pipe 6 away from the steam cylinder 3 is communicated with the elimination cylinder 7, the upper end of the elimination cylinder 7 is provided with the exhaust mechanism 8, the exhaust mechanism 8 comprises an exhaust pipe 81, a wind guide wheel 82 is arranged inside the exhaust pipe 81, the middle section of the exhaust pipe 81 is bulged and wrapped outside the wind guide wheel 82, and a hole is formed in the upper section of the exhaust pipe 81 and used for discharging gas, the exhaust mechanism 8 drives the wind guide wheel 82 to rotate by the motor, so as to guide the airflow, and the residual gas inside the elimination cylinder 7 is discharged from the exhaust pipe 81, the collecting box 5 is used for storing the liquid discharged from the lower ends of the steam cylinder 3 and the elimination cylinder 7, so that the liquid can enter the evaporation tank 2 again through the pipeline, and the circulation distillation, concentration and purification of the medicinal liquid are realized, a through hole is arranged on the side wall of the exhaust pipe 81, the rotation of the wind guide wheel 82 is controlled by the motor, the exhaust airflow of the exhaust pipe 81 can be controlled by the wind guide wheel 82, and the exhaust pipe 81 can discharge the exhaust gas at a suitable exhaust speed.

[0033] The elimination cylinder 7 is provided with the defoaming mechanism 9, the defoaming mechanism 9 comprises a defoaming mesh plate 91, a water seepage disc 92 and an extension disc 93, the defoaming mechanism 9 is used for destroying the foam structure in the liquid, the water seepage disc 92 makes the liquid seep through and reduces the gas bubbles in the liquid, the defoaming mesh plate 91, the water seepage disc 92 and the extension disc 93 are arranged and distributed in the elimination cylinder 7 from top to bottom in sequence, the defoaming mechanism 9 removes the foam in the liquid by arranging the defoaming mesh plate 91, further reduces and eliminates the gas bubbles by the water seepage disc 92, and the extension disc 93 arranged to be movable up and down pushes and pulls the liquid, so that the liquid can quickly pass through the water seepage disc 92, and the liquid passing through the defoaming mesh plate 91 is pulled and quickly passes through the water seepage disc 91 by the pulling of the extension disc 93, which prevents the mesh holes of the water seepage disc 92 from being blocked by the tension of the medicinal liquid and prevents the mesh holes of the water seepage disc 92 from being blocked by the particles in the medicinal liquid.

[0034] The lower end of the defoaming mesh plate 91 is a disc with mesh holes, a spike is arranged at the upper end of the disc and used for eliminating the foam, the defoaming mesh plate 91 is provided with the spike, so that the foam can be pierced when passing through the mesh holes, thereby eliminating the gas bubbles in the liquid.

[0035] The lower end of the cylinder 7 is communicated with the collecting box 5, and the upper side of the evaporating tank 2 is communicated with the collecting box 5 through a pipeline, and a one-way valve is arranged in the inner side of the pipeline. By arranging the one-way valve on the pipeline communicated with the collecting box 5 and the evaporating tank 2, the medicine liquid in the evaporating tank 2 is prevented from being directly introduced into the collecting box 5 through the steam cylinder 3 under the influence of pressure, so as to affect the effect of separation and purification. The surface of the steam cylinder 3 is communicated with an output assembly 10, which comprises a cooling pipeline 101 and a storage tank 102. The cooling pipeline 101 is cooled by using a cooling mechanism 11 and an "S"-shaped outer shape. A pressure valve is arranged in the inner side of the inlet end of the cooling pipeline 101. The output assembly 10 is provided with the bending and slender cooling pipeline 101, so that the vaporized liquid passing through the cooling pipeline 101 can be fully cooled. The cooling pipeline 101 is communicated with the storage tank 102, so that the cooled liquid can be stored in the inner side of the storage tank 102 for timely discharge. The surface of the concentration table 1 is provided with the cooling mechanism 11 for cooling the output assembly 10. The cooling pipeline 101 is cooled by the cooling mechanism 11, so that the steam entering the cooling pipeline 101 can be quickly cooled and condensed, and the condensed liquid is stored in the storage tank 102.

[0036] In use, first, the filtered liquid medicine is filled into the tank 21 through the pipeline, and the liquid medicine at the lower end of the inside of the tank 21 is transmitted upward to realize the first circulation by starting the circulating pump 26 and using the pipeline. After the liquid medicine is discharged from the circulating pump 26, it first contacts the buffer plate 22 to eliminate the impact force of the liquid medicine discharged from the pipeline. The liquid medicine is accumulated above the steady flow plate 23, and the liquid medicine storage overflows the surface pipe of the steady flow plate 23, flows down the pipe smoothly, and then falls along the outer wall of the wall flow rod 25 through the filter screen plate 24. The liquid medicine is introduced into the tank 21 through a heat source, so that the liquid medicine evaporates at a high temperature through the outer wall of the wall flow rod 25. The liquid medicine is vaporized by the circulating pump 26 rotating in the evaporation tank 2, and the steam in the evaporation tank 2 is introduced into the steam cylinder 3 through the pipeline. The steam cylinder 3 is rotated by starting the motor to drive the eccentric disc 41, and the eccentric disc 41 is rotated to push the toggle frame 42 up and down by the protrusions on the surface of the eccentric disc 41. The toggle frame 42 drives the piston shaft 43 to move up and down. When the piston shaft 43 descends, the steam enters the piston cylinder 31. When the piston shaft 43 rises, the steam inside the piston cylinder 31 is compressed into the compression chamber 33. The compressed gas forms two substances that are distinguished by liquid and gas. The gas penetrates the pressure valve of the cooling pipeline 101 and enters the storage tank 102. The gas is cooled by the cooling mechanism 11 and is restored to liquid to achieve the effect of purifying and concentrating the liquid medicine. The liquid formed in the compression chamber 33 flows downward along the inner wall of the compression chamber 33. When the piston shaft 43 descends, the liquid and the gas enter the separation chamber 32. The gas and the foam enter the upper chamber 321 and then enter the elimination cylinder 7 through the transfer pipe 6. The liquid enters the lower chamber 322 and is transferred to the collection tank 5. The foam and the gas inside the elimination cylinder 7 first contact the defoaming screen plate 91. The protrusions on the surface of the defoaming screen plate 91 break the foam to form liquid. The liquid passes through the water seepage disc 92 by the push-pull of the telescopic disc 93. The liquid inside the elimination cylinder 7 enters the collection tank 5, and the excess gas is discharged from the exhaust pipe 81. The motor drives the wind guide wheel 82 to guide the excess gas flow to be discharged. The liquid inside the collection tank 5 is re-introduced into the evaporation tank 2 through the pipeline to realize circulation, so as to achieve the effect of energy saving and separating the liquid and concentrating the medicine.

[0037] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0038] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

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

Claims

1. A pharmaceutical manufacturing MVR distillation and concentration apparatus, comprising a concentration stage (1), characterized in that: An evaporator (2) is provided inside the concentrator (1) to evaporate the liquid medicine into gas. A steam cylinder (3) is connected to the surface of the evaporator (2) to store steam. A compression mechanism (4) is provided inside the steam cylinder (3) to compress steam. A collection box (5) is connected to the lower end of the steam cylinder (3) through a discharge pipe. A transfer pipe (6) is connected to the lower end of the steam cylinder (3). The transfer pipe (6) is above the discharge pipe. The end of the transfer pipe (6) away from the steam cylinder (3) is connected to an elimination cylinder (7). A discharge mechanism (8) is provided at the upper end of the elimination cylinder (7). A defoaming mechanism (9) is provided inside the elimination cylinder (7). The lower end of the elimination cylinder (7) is connected to the collection box (5). The collection box (5) is connected to the upper part of the evaporator (2) through a pipe. A one-way valve is provided inside the pipe. An output component (10) is connected to the surface of the steam cylinder (3). A cooling mechanism (11) is provided on the surface of the concentrator (1) to cool the output component (10).

2. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 1, characterized in that: The steam cylinder (3) includes a piston cylinder (31), a separation chamber (32), a compression chamber (33), and a sealing chamber (34). The separation chamber (32) is located at the lower end of the piston cylinder (31), the compression chamber (33) is located above the piston cylinder (31), and the sealing chamber (34) is an independent compartment located above the compression chamber (33). The separation chamber (32) is divided into an upper chamber (321) and a lower chamber (322), and the upper chamber (321) and the lower chamber (322) are connected by a round hole; The inner walls of the upper and lower ends of the compression chamber (33) are conical, and a guide plate (331) is provided on the inner side of the compression chamber (33). The cross section of the guide plate (331) is crescent-shaped.

3. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 2, characterized in that: The compression mechanism (4) includes an eccentric disk (41), a protruding key is provided at the edge of the end face of the eccentric disk (41), a toggle frame (42) is sleeved on the outside of the protruding key, a piston shaft (43) is connected to the surface of the toggle frame (42), and the lower end of the piston shaft (43) is set as a conical disk, which slides in contact with the inner wall of the piston cylinder (31).

4. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 2, characterized in that: The transfer tube (6) is in the shape of a pipe. A one-way valve and a pump body are provided in the middle section of the transfer tube (6). The transfer tube (6) is connected to the upper chamber (321) and is used to transport the material inside the upper chamber (321).

5. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 1, characterized in that: The discharge mechanism (8) includes an exhaust pipe (81), a guide wheel (82) is provided inside the exhaust pipe (81), the middle section of the exhaust pipe (81) is bulged and wrapped around the outside of the guide wheel (82), and the upper section is provided with holes for discharging gas.

6. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 1, characterized in that: The defoaming mechanism (9) includes a defoaming mesh plate (91), a seepage plate (92), and a telescopic plate (93). The defoaming mechanism (9) is used to destroy the foam structure in the liquid. The seepage plate (92) allows the liquid to permeate through and reduce the bubbles in the liquid. The defoaming mesh plate (91), the seepage plate (92), and the telescopic plate (93) are arranged in order from top to bottom inside the defoaming cylinder (7).

7. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 6, characterized in that: The lower end of the defoaming mesh plate (91) is a disc with mesh holes, and the upper end of the disc is provided with spikes to eliminate foam.

8. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 1, characterized in that: The evaporator (2) includes a tank body (21), a buffer plate (22) is provided on the upper inner side of the tank body (21), a flow stabilizer plate (23) is provided on the inner side of the tank body (21), the flow stabilizer plate (23) is located below the buffer plate (22), a filter plate (24) is provided on the inner side of the tank body (21), the filter plate (24) is located below the flow stabilizer plate (23), a wall flow rod (25) is provided on the inner side of the tank body (21) to make the liquid flow downward along the outer wall, a heating hole is provided on the side wall of the tank body (21), the position of the heating hole corresponds to the wall flow rod (25), a baffle is provided at the lower end of the tank body (21), and two sets of circulation pumps (26) are provided on the outer side of the tank body (21) to make the liquid circulate in the tank body (21).

9. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 1, characterized in that: The output component (10) includes a cooling pipe (101) and a storage tank (102). The cooling pipe (101) uses a cooling mechanism (11) and an "S"-shaped shape to achieve cooling. A pressure valve is provided on the inner side of the inlet end of the cooling pipe (101).

10. The MVR distillation and concentration apparatus for pharmaceutical production according to claim 8, characterized in that: The flow stabilizer plate (23) is composed of a disc and a tube. The disc is fixedly connected to the inside of the tank (21). A tube is installed through the surface of the disc, and the upper end of the tube protrudes from the upper surface of the disc.

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