Xylitol MVR evaporation and concentration equipment with temperature intelligent regulation component

Abstract

The utility model relates to xylosol production equipment technical field, concretely discloses a kind of xylosol MVR evaporation concentration equipment with temperature intelligent regulation and control component, including evaporating tank, the upper portion of evaporating tank is provided with feed pipe, the outside of feed pipe is provided with temperature detector, the lower portion of evaporating tank is provided with discharge pipe, the outside of discharge pipe is provided with concentration detector;Evaporating tank is also provided with heating coil, the lower portion of heating coil is provided with steam inlet pipe, the lower portion of steam inlet pipe is provided with flow divider, the outside of flow divider is provided with flow regulating valve, the upper portion of heating coil is provided with steam outlet pipe, to this can carry out dynamic adjustment according to the real-time concentration and temperature of xylosol solution Evaporation temperature, and can effectively avoid local temperature too high phenomenon, improve the purity and quality of xylosol fermentation broth concentration.

Description

Technical Field

[0001] This utility model relates to the technical field of xylitol production equipment, and in particular to a xylitol MVR evaporation and concentration device with an intelligent temperature control component. Background Technology

[0002] In the industrial production of xylitol, evaporation and concentration is one of the core processes. Its purpose is to remove water from the xylitol fermentation broth or refined broth to obtain a high-concentration xylitol concentrate, which lays the foundation for subsequent crystallization, separation and purification processes. At present, the industry generally uses multi-effect evaporation or MVR (mechanical vapor recompression) evaporation technology to concentrate xylitol solution. Among them, MVR evaporation technology has gradually become the mainstream equipment choice due to its advantages such as low energy consumption, high thermal efficiency and good environmental protection.

[0003] However, the temperature control accuracy of the above-mentioned existing technologies is low, and they mostly rely on manual setting of fixed evaporation temperatures. They cannot be dynamically adjusted according to the real-time concentration changes of xylitol solutions, which can easily lead to local overheating during the evaporation process, thereby triggering xylitol caramelization and affecting product purity and quality. At the same time, the evaporation efficiency may decrease due to excessively low temperatures, increasing production energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide a xylitol MVR evaporation and concentration device with an intelligent temperature control component. This device aims to solve the technical problems in the prior art, which cannot dynamically adjust the xylitol solution according to the real-time concentration changes, leading to local overheating during the evaporation process, which in turn triggers xylitol caramelization, affecting product purity and quality. It also addresses the technical problem that excessively low temperatures can reduce evaporation efficiency and increase production energy consumption.

[0005] To achieve the above objectives, this utility model employs a xylitol MVR evaporation and concentration device with an intelligent temperature control component, comprising an evaporation tank, an inlet pipe at the top of the evaporation tank, a temperature detector at the outside of the inlet pipe, an outlet pipe at the bottom of the evaporation tank, a concentration detector at the outside of the outlet pipe; a heating coil is also provided inside the evaporation tank, a steam inlet pipe is provided below the heating coil, a flow divider is provided below the steam inlet pipe, a flow regulating valve is provided at the outside of the flow divider, and a steam outlet pipe is provided above the heating coil.

[0006] The heating coil is S-shaped and installed inside the evaporator, and multiple sets of the heating coil are provided. A support column is provided on the outside of the heating coil, and the upper and lower ends of the support column are fixedly connected to the evaporator.

[0007] A concentrator is provided above the steam outlet pipe, and a return pipe is provided above the concentrator.

[0008] The evaporator has an observation window on its wall, and the observation window extends through the evaporator.

[0009] An extension frame is provided on the outside of the evaporator, and a motor is provided above the extension frame.

[0010] The output end of the motor is connected to a drive gear, and the drive gear is located inside the extension frame.

[0011] The drive gear is fitted with a gear ring on its outer side, and the gear ring is disposed in the inner layer of the evaporator.

[0012] The gear ring has a limiting shaft on its outer side and a scraper on its inner ring, which is attached to the inner wall of the evaporator.

[0013] Compared with the prior art, this utility model has the following advantages: 1. The temperature of the xylitol fermentation broth is monitored in real time by the temperature detector, and the concentration of the solution is captured in real time by the concentration detector. The data from both are used as the basis for the regulation of the flow control valve, which can dynamically adjust the flow rate of high-temperature steam entering the heating coil. This effectively solves the problem that traditional equipment relies on manual setting of a fixed temperature and cannot adapt to changes in concentration.

[0014] 2. The evaporator is designed with multiple sets of heating coils. The S-shaped structure of the heating coils greatly increases the contact area between the heating coils and the xylitol fermentation broth, so that the heat is transferred to the solution more evenly and fully, reducing the phenomenon of uneven heating in some parts of the solution.

[0015] 3. The motor drives the drive gear to rotate, which in turn drives the scraper to scrape the xylitol fermentation liquid off the inner wall of the evaporator. This effectively prevents the solution from scorching due to local high temperature after prolonged stay on the tank wall, avoids the scorched material affecting the purity of subsequent products, reduces the accumulation of material on the tank wall, reduces the difficulty of cleaning the equipment, ensures long-term stable operation of the equipment, and reduces maintenance costs and downtime. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model.

[0018] Figure 2 This is a front view of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model.

[0019] Figure 3 This is a structural cross-sectional view of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model.

[0021] 101-Evaporator, 102-Feed pipe, 103-Temperature detector, 104-Discharge pipe, 105-Concentration detector, 106-Heating coil, 107-Steam inlet pipe, 108-Diverter, 109-Flow regulating valve, 110-Steam outlet pipe, 111-Converger, 112-Return pipe, 113-Observation window, 114-Extension frame, 115-Motor, 116-Drive gear, 117-Gear ring, 118-Limit shaft, 119-Scraper, 120-Support column. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the structure of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model. Figure 2 This is a front view of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model. Figure 3 This is a structural cross-sectional view of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model. Figure 4 This is a partial structural schematic diagram of a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this utility model.

[0024] In this embodiment, an evaporator 101 is included. A feed pipe 102 is disposed above the evaporator 101, and a temperature detector 103 is disposed outside the feed pipe 102. A discharge pipe 104 is disposed below the evaporator 101, and a concentration detector 105 is disposed outside the discharge pipe 104. A heating coil 106 is also disposed inside the evaporator 101. A steam inlet pipe 107 is disposed below the heating coil 106, and a distributor 108 is disposed below the steam inlet pipe 107. A flow regulating valve 109 is disposed outside the distributor 108. A steam outlet pipe 110 is disposed above the heating coil 106. Valves are disposed in both the feed pipe and the discharge pipe 104 for adding and discharging the solution. The front end of the distributor 108 is connected to a high-temperature steam tank, which then distributes the high-temperature evaporator... Steam is discharged to the distributor 108, and xylitol fermentation broth enters the evaporator 101 through the feed pipe 102. The temperature detector 103 monitors the temperature of the xylitol fermentation broth, and the concentration detector 105 monitors the concentration of the concentrated xylitol fermentation broth at the discharge pipe 104. High-temperature steam enters through the steam inlet pipe 107, and the distributor 108 diverts the steam to the heating coil 106. The flow regulating valve 109 adjusts the flow rate of the incoming high-temperature steam according to the temperature monitored by the temperature detector 103 and the concentration monitored by the concentration detector 105. When the temperature monitored by the temperature detector 103 does not reach the set value, the flow regulating valve 109 is fully open. When it approaches the set value, the flow regulating valve 109 gradually reduces the discharge flow rate, thereby realizing intelligent control of the evaporation temperature and reducing energy consumption.

[0025] The heating coil 106 is S-shaped and installed inside the evaporator 101. Multiple sets of heating coils 106 are provided. Support columns 120 are provided on the outer side of the heating coil 106. The upper and lower ends of the support columns 120 are fixedly connected to the evaporator 101. The S-shaped structure of the heating coil 106 greatly increases the contact area between the heating coil and the xylitol solution, allowing heat to be transferred to the solution more evenly and fully, reducing uneven heating in certain areas. The support columns 120 are used to support the heating coil 106 and ensure its stable operation.

[0026] Secondly, a concentrator 111 is provided above the steam outlet pipe 110, and a return pipe 112 is provided above the concentrator 111. The concentrator 111 gathers the outflowing steam and discharges it into the return pipe 112. The return pipe 112 transports the steam back into the steam output tank, thereby realizing the circulation of high-temperature steam.

[0027] Meanwhile, the evaporator 101 is provided with an observation window 113 on its wall, and the observation window 113 extends through the evaporator 101. The observation window 113 allows the operator to directly observe the evaporation state, liquid level and any abnormalities of the xylitol solution in the tank, so as to keep track of the production process without disassembling the equipment and improve the convenience of operation.

[0028] In addition, an extension frame 114 is provided on the outside of the evaporator 101, and a motor 115 is provided above the extension frame 114. The motor 115 is fixedly installed above the extension frame 114.

[0029] Secondly, the output end of the motor 115 is connected to a drive gear 116, and the drive gear 116 is disposed inside the extension frame 114. The motor 115 drives the drive gear 116 to rotate stably inside the extension frame 114.

[0030] Meanwhile, a gear ring 117 is meshed on the outer side of the drive gear 116. The gear ring 117 is disposed in the inner layer of the evaporator 101. Through the meshing of the drive gear 116 and the gear ring 117, the drive gear 116 drives the gear ring 117 to rotate synchronously.

[0031] In addition, a limiting shaft 118 is provided on the outer side of the gear ring 117, and a scraper 119 is provided on the inner ring of the gear ring 117. The scraper 119 is attached to the inner wall of the evaporator 101. The limiting shaft 118 ensures that the gear ring 117 rotates stably. The gear ring 117 drives the scraper 119 to rotate. The scraper 119 scrapes off the xylitol solution adhering to the inner wall of the evaporator 101, effectively preventing the solution from scorching due to local high temperature after staying on the tank wall for a long time. At the same time, the scraper can effectively scrape off the fog generated inside the observation window when it scrapes, which facilitates the use of the observation window.

[0032] Using a xylitol MVR evaporation and concentration device with an intelligent temperature control component according to this embodiment, by setting up the evaporator 101, the heating coil 106, and the flow regulating valve 109, in specific use, the xylitol fermentation broth enters the evaporator 101 through the feed pipe 102. The temperature detector 103 monitors the temperature of the xylitol fermentation broth, and the concentration detector 105 monitors the concentration of the xylitol fermentation broth at the discharge pipe 104. High-temperature steam enters through the steam inlet pipe 107, and the distributor 108 distributes the steam to the heating coil 106. The flow regulating valve 109 adjusts the flow rate of the incoming high-temperature steam according to the temperature monitored by the temperature detector 103 and the concentration monitored by the concentration detector 105. When the temperature monitored by the temperature detector 103 does not reach the set value, the flow regulating valve 109 is fully open. As the flow rate approaches the set value, the flow regulating valve 109 gradually reduces the discharge flow rate, achieving intelligent control of the evaporation temperature and reducing energy loss. Simultaneously, the motor 115 drives the drive gear 116 to rotate. Through the meshing of the drive gear 116 and the gear ring 117, the gear ring 117 rotates only on the inner wall of the evaporator 101. The gear ring 117 drives the scraper 119 to scrape off the xylitol fermentation liquid adhering to the inner wall of the evaporator 101, preventing the xylitol fermentation liquid from caramelizing. When the concentration detector 105 detects that the evaporation concentration of the xylitol fermentation liquid reaches the standard, the discharge pipe 104 valve is opened to discharge the concentrated xylitol fermentation liquid. This allows for dynamic adjustment of the evaporation temperature based on the real-time concentration and temperature of the xylitol solution, effectively avoiding local overheating and improving the purity and quality of the concentrated xylitol fermentation liquid.

Claims

1. A xylitol MVR evaporation and concentration device with an intelligent temperature control component, characterized in that, The evaporator includes an evaporator (101), a feed pipe (102) is provided above the evaporator (101), a temperature detector (103) is provided on the outside of the feed pipe (102), and a discharge pipe (104) is provided below the evaporator (101), with a concentration detector (105) provided on the outside of the discharge pipe (104). The evaporator (101) is also equipped with a heating coil (106), a steam inlet pipe (107) is provided below the heating coil (106), a distributor (108) is provided below the steam inlet pipe (107), a flow regulating valve (109) is provided on the outside of the distributor (108), and a steam outlet pipe (110) is provided above the heating coil (106).

2. The xylitol MVR evaporation and concentration equipment with intelligent temperature control component as described in claim 1, characterized in that, The heating coil (106) is S-shaped and installed inside the evaporator (101), and multiple sets of the heating coil (106) are provided. A support column (120) is provided on the outside of the heating coil (106), and the upper and lower ends of the support column (120) are fixedly connected to the evaporator (101).

3. The xylitol MVR evaporation and concentration equipment with intelligent temperature control component as described in claim 2, characterized in that, A concentrator (111) is provided above the steam outlet pipe (110), and a return pipe (112) is provided above the concentrator (111).

4. The xylitol MVR evaporation and concentration equipment with intelligent temperature control component as described in claim 3, characterized in that, The evaporator (101) has an observation window (113) on its wall, and the observation window (113) extends through the evaporator (101).

5. The xylitol MVR evaporation and concentration device with intelligent temperature control component as described in claim 4, characterized in that, An extension frame (114) is provided on the outside of the evaporator (101), and a motor (115) is provided above the extension frame (114).

6. The xylitol MVR evaporation and concentration device with intelligent temperature control component as described in claim 5, characterized in that, The output end of the motor (115) is connected to a drive gear (116), and the drive gear (116) is located inside the extension frame (114).

7. A xylitol MVR evaporation and concentration device with an intelligent temperature control component as described in claim 6, characterized in that, A gear ring (117) is meshed on the outer side of the drive gear (116), and the gear ring (117) is disposed in the inner layer of the evaporator (101).

8. The xylitol MVR evaporation and concentration device with intelligent temperature control component as described in claim 7, characterized in that, The gear ring (117) has a limiting shaft (118) on its outer side, and a scraper (119) is provided on the inner ring of the gear ring (117), and the scraper (119) is attached to the inner wall of the evaporator (101).

Images