Cross-flow massecuite and waste honey heat exchanger

Abstract

The utility model discloses a cross-flow type massecuite and waste honey heat exchanger which comprises a tank body, a heat exchanger, a heat exchanger, a heat exchanger and a heat exchanger. The top of the tank body is provided with a material inlet, and the bottom is provided with a material outlet; the heat exchange medium inlet pipe is arranged on the outer side of the lower part of the tank body; the heat exchange medium outlet pipe is arranged on the outer side of the upper part of the tank body; and one end of each heat exchange pipe is connected with the heat exchange medium inlet pipe, the other end of each heat exchange pipe is connected with the heat exchange medium outlet pipe, and pipe bodies of the heat exchange pipes are arranged in the tank body in a roundabout mode. The triose paste cooling device can be applied to rapid heating of triose paste and cooling of waste honey, and can effectively guarantee smooth production of a sugar factory.

Description

Technical Field

[0001] The utility model relates to the technical field of sugar-making equipment, in particular to a cross-flow sugar paste and molasses heat exchanger. Background Art

[0002] At present, the temperature of the third-grade sugar paste boiled out of the boiling pan in domestic sugar factories is 65-70°C. Since the solubility of sugar is directly proportional to the temperature, if the temperature of the sugar paste can be reduced to 40-45°C, the sugar recovery can be improved and the production cost of the sugar factory can be saved. However, the third-grade sugar paste has low purity, high Brix (>1000 BX), high viscosity, and poor fluidity. The temperature is inversely proportional to the viscosity of the sugar paste. When the temperature is reduced to 40-45°C, the viscosity of the sugar paste is too high, which will cause honey sticking to the centrifuge, unable to separate the honey liquid of the sugar crystals, resulting in filter screen blockage. In order not to affect the normal production of the sugar factory, at present, many domestic sugar factories put the third-grade sugar paste into the centrifuge for separation when the temperature is about 55-60°C. However, without secondary crystallization cooling, due to the high solubility of the sugar paste, the sugar recovery will be affected, resulting in low boiling and refining recovery and high molasses rate.

[0003] In order to improve the sugar recovery, some sugar factories cool the third-grade sugar paste to 40-45°C through secondary crystallization in a secondary crystallizer and then separate it. However, if the sugar paste is directly put into the centrifuge at this time, due to the low purity, high Brix (>100 0 BX), high viscosity, and poor fluidity of the third-grade sugar paste, honey will stick to the centrifuge and the honey liquid of the sugar crystals cannot be separated. Therefore, before the third-grade sugar paste enters the centrifuge, the sugar paste cooled by secondary crystallization in the secondary crystallizer is heated to 50-55°C in the shortest possible time to reduce the viscosity and Brix of the third-grade sugar paste, and then enters the centrifuge for separation.

[0004] In addition, the temperature of the final molasses after being separated by a centrifuge is 50-60°C. After the molasses comes out of the centrifuge, it is pumped into a molasses storage tank. The molasses storage tank is generally outdoors. The molasses has a high viscosity and slow heat dissipation. It remains at a high temperature for a long time. Due to the action of heat and acid, it is very easy to expand and foam, the sucrose content is converted, the total sugar content decreases, and harmful substances such as aldehydes and acids to microorganisms are continuously generated, resulting in deterioration and damage. At present, there are two common cooling measures for molasses in sugar factories: (1) Set up a spray cooling system on the molasses storage tank. The circulating tap water flows down along the tank wall to achieve the cooling effect; (2) Use a plate heat exchanger to heat exchange and cool the molasses. The first cooling method has the following disadvantages: ① The cooling water can only be sprayed on the surface of the molasses storage tank, and the temperature of the middle molasses cannot be controlled, and the cooling effect is not obvious; ② The amount of cooling water used is large; ③ The anti-corrosion requirement for the equipment is high. The molasses storage tank is in contact with water for a long time and is easy to rust and corrode. It needs to be re-anti-corrosion treated every 2-3 years, and the cost is high. The second cooling method has the following disadvantages: ① Due to the high viscosity and poor fluidity of the molasses, and the small channels of the plate heat exchanger, it is easy to cause blockage and difficult to clean; ② A high-lift sugar paste pump needs to be used, and the investment cost is high. Utility Model Content

[0005] The utility model discloses a cross-flow sugar paste and molasses heat exchanger, which can be applied to the rapid heating of C sugar paste and the cooling of molasses, and can effectively ensure the smooth progress of the C sugar paste separation link in the sugar factory.

[0006] A cross-flow sugar paste and molasses heat exchanger, comprising:

[0007] A tank body, with a material inlet arranged at the top and a material outlet arranged at the bottom;

[0008] A heat exchange medium inlet pipe, which is arranged outside the lower part of the tank body;

[0009] A heat exchange medium outlet pipe, which is arranged outside the upper part of the tank body;

[0010] Multiple heat exchange tubes, one end of which is connected to the heat exchange medium inlet pipe, the other end is connected to the heat exchange medium outlet pipe, and the tube body is arranged in a circuitous manner in the tank body.

[0011] Further, it further includes a heat exchange cavity, which is alternately arranged on the outer side wall of the tank above the heat exchange medium inlet pipe and the outer side wall of the tank below the heat exchange medium outlet pipe in the height direction, and encloses a sealed cavity with the side wall of the tank; the heat exchange pipe includes multiple heat exchange pipe segments, and the heat exchange pipe segments include a first heat exchange pipe segment, multiple middle heat exchange pipe segments and a last heat exchange pipe segment. The first heat exchange pipe segment introduces the heat exchange medium from the heat exchange medium inlet pipe into the heat exchange cavity on the opposite side of the heat exchange medium inlet pipe, and then introduces it into the heat exchange cavity on the upper layer of the heat exchange medium inlet pipe through one of the middle heat exchange pipe segments. The multiple middle heat exchange pipes enable the heat exchange medium to alternately pass through the tank and rise into the heat exchange cavities with increasing heights, and finally enter the heat exchange medium outlet pipe through the last heat exchange pipe segment and be discharged.

[0012] Furthermore, the tank is provided with a tank through hole for fixing the heat exchange pipe segment, and the tank through hole is hermetically connected to the outer wall of the heat exchange pipe segment;

[0013] The heat exchange cavities on the outer side wall of the tank located on the same side as the heat exchange medium inlet pipe are arranged at least in two layers successively upward from the heat exchange medium inlet pipe, and each layer is communicated with two adjacent rows of the heat exchange pipe segments until the last heat exchange pipe segment is correspondingly provided with the heat exchange cavity or the heat exchange medium outlet pipe is communicated with it;

[0014] The heat exchange cavities on the outer side wall of the tank on the opposite side of the heat exchange medium inlet pipe are arranged at least in two layers successively upward from the opposite side of the heat exchange medium inlet pipe, and each layer is communicated with two adjacent rows of the heat exchange pipe segments until the last heat exchange pipe segment is correspondingly provided with the heat exchange medium outlet pipe or the heat exchange cavity is communicated with it.

[0015] Furthermore, the part of the tank where the heat exchange pipe is provided is cubic in shape; the heat exchange medium inlet pipe is bent and arranged outside two adjacent side walls of the tank, and the heat exchange medium outlet pipe is bent and arranged outside two adjacent side walls of the tank;

[0016] The heat exchange pipe includes a first heat exchange pipe and a second heat exchange pipe. One end of the first heat exchange pipe is connected to the part of the heat exchange medium inlet pipe outside one side wall of the tank, and one end of the second heat exchange pipe is connected to the part of the heat exchange medium inlet pipe outside another side wall of the tank. The first heat exchange pipe and the second heat exchange pipe are staggered from each other in the height direction and are perpendicular to each other, and the other ends rise circuitously and extend to be correspondingly connected to the parts of the heat exchange medium outlet pipe outside different side walls of the tank.

[0017] Furthermore, each layer of heat exchange cavities on each side wall of the tank includes at least two heat exchange cavity units.

[0018] Further, the tank body includes a buffer chamber, a connecting neck, and a tank body main body. The buffer chamber and the tank body main body are connected by the connecting neck. The width or diameter of the connecting neck is smaller than the width or diameter of the buffer chamber and the tank body main body. A baffle is fixed inside the buffer chamber. The middle of the baffle is directly below the material inlet, and its height is not lower than the peripheral side of the baffle. The width or diameter of the baffle is also larger than the width or diameter of the connecting neck. The part of the buffer chamber connected to the connecting neck is inclined downward from outside to inside.

[0019] Furthermore, the baffle is in a conical shape with a smaller top and a larger bottom.

[0020] Furthermore, the tank body main body includes a top head, a body, and a bottom head connected from top to bottom. The top head is connected to the connecting neck, and the top surface area is smaller than the bottom surface area. The top surface area of the bottom head is larger than the bottom surface area. The body is used to arrange the heat exchange tubes.

[0021] Furthermore, a distribution plate is fixed inside the top head, and a plurality of distribution plate through holes are arranged through the distribution plate at intervals.

[0022] Further, a gas dispersion port is also arranged at the top of the tank body.

[0023] For the cross-flow molasses and spent molasses heat exchanger described above, the molasses and spent molasses flow from top to bottom in the shell side, and the heat exchange medium flows from bottom to top in the tube side. Through heat exchange, the temperature of the molasses can be increased or the temperature of the spent molasses can be decreased.

[0024] The utility model has the following advantages:

[0025] (1) When using the utility model to increase the temperature of molasses or decrease the temperature of spent molasses, the molasses and spent molasses flow from top to bottom in the shell side, and the heat exchange medium flows from bottom to top in the tube side. During the heat exchange process, the heat exchange medium can contact the inside of the molasses and spent molasses; when it is applied to the temperature increase of C molasses, by using the shell side with a larger space to quickly increase the temperature of C molasses, the probability of molasses blockage can be reduced, effectively ensuring the smooth progress of the C molasses separation process in the sugar factory; when it is applied to the temperature decrease of spent molasses, compared with the spray cooling system, the heat exchange efficiency is higher, and the purpose of energy saving can be achieved; compared with the plate heat exchanger, the molasses and spent molasses flow in the shell side with a larger space, and it is not easy to appear blockage phenomenon, effectively ensuring the smooth production of the sugar factory.

[0026] (2) When using the utility model for heat exchange, the cold source and the heat source adopt reverse flow, ensuring the stability of the heat exchange rate.

[0027] (3) In the present utility model, a heat exchange cavity is provided on the outer side wall of the tank body, which can ensure that the sugar paste and waste honey can make full use of the large space inside the tank body for sufficient heat exchange, and can ensure the smooth flow of the sugar paste and waste honey inside the tank body. In addition, it can also take into account the convenience of maintenance of the heat exchange cavity and the single-section heat exchange pipe segment.

[0028] (4) The present utility model further bends the heat exchange medium inlet pipe and the heat exchange medium outlet pipe, and correspondingly arranges the heat exchange pipes in a normal staggered manner, thereby further increasing the heat exchange area and improving the heat exchange efficiency. At the same time, different spacings can be designed according to different material characteristics to ensure the smooth flow of the material without dead ends and avoid local overheating.

[0029] (5) Further, both the upper head and the lower head adopt a conical design, which can further avoid the blockage of the material and ensure the smooth progress of production. Brief Description of the Drawings

[0030] Figure 1 is a three-dimensional structure schematic diagram of an embodiment of the present utility model.

[0031] Figure 2 is a three-dimensional structure schematic diagram of another angle of an embodiment of the present utility model.

[0032] Figure 3 is a front view structure schematic diagram of the present utility model.

[0033] Figure 4 is Figure 3 the A-A sectional structure schematic diagram of.

[0034] In the figure, material inlet 100, first manhole 200, heat exchange medium outlet pipe 300, heat exchange cavity 400, heat exchange cavity unit 410, tank body 500, tank body main body 510, upper head 511, body 512, lower head 513, connecting neck 520, buffer chamber 530, second manhole 600, material outlet 700, heat exchange medium inlet pipe 800, air vent 900, baffle 1000, distribution plate 1100, heat exchange pipe 1200, first heat exchange pipe 1210, second heat exchange pipe 1220. Detailed Embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0037] In this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] A cross-flow sugar paste and waste molasses heat exchanger, combined with Figures 1-3 as shown, includes a tank body 500, a heat exchange medium inlet pipe 800, a heat exchange medium outlet pipe 300, and heat exchange pipes 1200, wherein: the tank body 500 has a material inlet 100 provided at its top and a material outlet 700 provided at its bottom; the heat exchange medium inlet pipe 800 is provided outside the lower part of the tank body 500; the heat exchange medium outlet pipe 300 is provided outside the upper part of the tank body 500; combined with Figure 4As shown, there are multiple heat exchange tubes 1200. One end of the heat exchange tubes is connected to the heat exchange medium inlet pipe 800, and the other end is connected to the heat exchange medium outlet pipe 300. The tube bodies are arranged in a circuitous manner inside the tank body 500. Specifically, the tube bodies of the heat exchange tubes 1200 are arranged inside the tank body 500. The lower end penetrates through the tank body 500 and is connected to the heat exchange medium inlet pipe 800, and the upper end penetrates through the tank body 500 and is connected to the heat exchange medium outlet pipe 300. When the heat exchange tubes 1200 penetrate through the tank body 500, the part where they are connected to the tank body 500 needs to be hermetically connected to the tank body 500 around the circumference to prevent the leakage of materials. During use, the sugar paste and waste molasses flow from top to bottom in the shell side, that is, the sugar paste and waste molasses enter from the material inlet 100, flow through the area where the heat exchange tubes 1200 are located, contact the peripheral wall of the heat exchange tubes 1200 for heat exchange, and then flow out from the material outlet 700; the heat exchange medium flows from bottom to top in the tube side, that is, the heat exchange medium enters from the heat exchange medium inlet pipe 800, exchanges heat with the sugar paste and waste molasses in the tank body 500, and then flows out from the heat exchange medium outlet pipe 300. The heat exchange medium is selected according to needs. If it is necessary to raise the temperature of the sugar paste, higher temperature hot water or hot gas is selected. If it is necessary to cool the waste molasses, lower temperature cold water or cold gas is selected. Through heat exchange, the temperature of the sugar paste can be raised or the waste molasses can be cooled. To accelerate the heat exchange speed, it is generally better to use hot water or cold water. Hot water or cold water is pumped into one end of the heat exchange medium inlet pipe 800 by a pump to make it flow upward. During the heat exchange process, the heat exchange medium can contact the inside of the sugar paste and waste molasses. When it is applied to the temperature rise of the third-grade sugar paste, by using the shell side with a larger space for the rapid temperature rise of the third-grade sugar paste, the probability of sugar paste blockage can be reduced, effectively ensuring the smooth progress of the molasses separation process of the third-grade sugar paste in the sugar factory; when it is applied to the cooling of the waste molasses, compared with the spray cooling system, the heat exchange efficiency is higher, and the purpose of energy saving can be achieved; compared with the plate heat exchanger, the sugar paste and waste molasses flow in the shell side with a larger space and are not prone to blockage, effectively ensuring the smooth production of the sugar factory. In addition, for the heat exchanger with the above structure, the temperature of the material can be controlled by controlling the flow rate of hot water or cold water, and automatic temperature control can be actually realized.

[0039] Further, it also includes a heat exchange cavity 400. The heat exchange cavities 400 are alternately arranged on the outer side wall of the tank body 500 above the heat exchange medium inlet pipe 800 and on the outer side wall of the tank body 500 below the heat exchange medium outlet pipe 800 in the height direction, and enclose a sealed cavity with the side wall of the tank body 500. Specifically, the heat exchange cavities 400 are arranged on both the outer side wall of the tank body 500 above the heat exchange medium inlet pipe 800 and the outer side wall of the tank body 500 below the heat exchange medium outlet pipe 800. Combining Figure 3As shown, when viewed from the height direction of the tank body 500, comparing with the center line of the heat exchange cavity 400 in the height direction, the heat exchange cavity 400 rises alternately on the outer side walls of the two opposite tank bodies 500; the heat exchange tube 1200 includes multiple heat exchange tube segments, and the heat exchange tube segments include a first heat exchange tube segment, multiple middle heat exchange tube segments and a last heat exchange tube segment, combined with Figure 4 As shown, taking the horizontal heat exchange tube segment shown in this figure as an example, the first heat exchange tube segment is the heat exchange tube segment with the lowest height, and the last heat exchange tube segment is the heat exchange tube segment with the highest height. There are multiple middle heat exchange tube segments between the first heat exchange tube segment and the last heat exchange tube segment; the first heat exchange tube segment introduces the heat exchange medium from the heat exchange medium inlet pipe 800 into the heat exchange cavity 400 on the opposite side of the heat exchange medium inlet pipe 800, and then introduces it into the heat exchange cavity 400 on the upper layer of the heat exchange medium inlet pipe 800 through one of the middle heat exchange tube segments. Referring to the above-mentioned transfer method of the heat exchange medium, multiple middle heat exchange tubes make the heat exchange medium alternately pass through the tank body 500 and rise into the heat exchange cavities 400 with higher and higher heights, and finally enter the heat exchange medium outlet pipe 300 through the last heat exchange tube segment and be discharged. By setting multiple heat exchange tube segments, the contact area between the sugar paste, waste honey and the heat exchange tube 1200 can be fully increased, thereby improving the heat exchange efficiency. By arranging the heat exchange cavity 400 on the outer side wall of the tank body 500, it can ensure that the sugar paste and waste honey can make full use of the large space in the tank body 500 for sufficient heat exchange, and ensure that the sugar paste and waste honey can flow smoothly in the tank body 500. In addition, it can also take into account the convenience of maintenance of the heat exchange cavity 400 and a single heat exchange tube segment.

[0040] Furthermore, this embodiment provides a more specific layout structure of the heat exchange cavity 400. The tank body 500 is provided with a tank body through hole for fixing the heat exchange tube segment, and the tank body through hole is hermetically connected to the outer wall of the heat exchange tube segment to prevent the sugar paste and waste honey from leaking out of the tank body 500. Combined with Figure 3 As shown, from a structural point of view, the heat exchange cavity 400 on the outer side wall of the same tank body as the heat exchange medium inlet pipe 800 is arranged at least two layers upward in sequence from the heat exchange medium inlet pipe 800, and each layer is communicated with two adjacent rows of heat exchange tube segments until the last heat exchange tube segment is correspondingly provided with a heat exchange cavity 400 or the heat exchange medium outlet pipe 300 is communicated with it. As for whether the last heat exchange tube segment is communicated with the heat exchange cavity 400 or the heat exchange medium outlet pipe 300 at this end depends on the number of heat exchange tube segments, in order to Figure 4Taking the example in [description], for the horizontal heat exchange tubes 1200, if there are 9 heat exchange tube segments, the last heat exchange tube segment is connected to the heat exchange cavity 400 at this end. If referring to the vertical heat exchange tubes 1200, which have 8 heat exchange tube segments, one end of the heat exchange tubes 1200 on the same side as the heat exchange medium inlet pipe 800 is connected to the heat exchange medium outlet pipe 300. The heat exchange cavities 400 on the outer wall of the tank on the opposite side of the heat exchange medium inlet pipe 800 are arranged in at least two layers successively upward from the opposite side of the heat exchange medium inlet pipe 800, and each layer is connected to two adjacent rows of heat exchange tube segments until the last heat exchange tube segment is correspondingly provided with a heat exchange medium inlet pipe 800 or a heat exchange cavity 400 connected thereto. As for whether the last heat exchange tube segment is connected to the heat exchange medium outlet pipe 300 or the heat exchange cavity 400 at this end, it also depends on the number of heat exchange tube segments. Of course, if in the arrangement of the heat exchange cavity 400 on the same outer wall of the tank as the heat exchange medium inlet pipe 800, the last heat exchange tube segment is connected to the heat exchange cavity 400, then on the opposite side of the heat exchange medium inlet pipe 800, the last heat exchange tube segment is connected to the heat exchange medium outlet pipe 300, and vice versa, it is connected to the heat exchange cavity 400. Naturally, each row of heat exchange tube segments should be connected to the heat exchange cavity 400 to prevent the leakage of the heat exchange medium. Referring to the above setting method, combined with Figure 4 Taking the transmission of the heat exchange medium by the horizontal heat exchange tube segments as an example according to the direction and specific quantity example shown in [figure], the heat exchange medium first enters the heat exchange medium inlet pipe 800, then enters the first-layer right heat exchange cavity on the opposite side of the heat exchange medium inlet pipe 800, and then alternately rises and enters the first-layer left heat exchange cavity, the second-layer right heat exchange cavity, the second-layer left heat exchange cavity, the third-layer right heat exchange cavity, the third-layer left heat exchange cavity, the fourth-layer right heat exchange cavity, and the fourth-layer left heat exchange cavity, and finally flows out through the heat exchange medium outlet pipe 300.

[0041] Furthermore, combined with Figure 1 and Figure 2As shown, the part of the tank body 500 where the heat exchange tubes 1200 are arranged is cubic in shape, and the cross-section is square; the heat exchange medium inlet pipe 800 is bent and arranged outside the side walls of two adjacent tank bodies 500, and the heat exchange medium outlet pipe 300 is also bent and arranged outside the side walls of two adjacent tank bodies 500; the heat exchange tubes 1200 include a first heat exchange tube 1210 and a second heat exchange tube 1220. One end of the first heat exchange tube 1210 is connected to the part of the heat exchange medium inlet pipe 800 outside one side wall of the tank body 500, and one end of the second heat exchange tube 1220 is connected to the part of the heat exchange medium inlet pipe 800 outside another side wall of the tank body 500. The first heat exchange tube 1210 and the second heat exchange tube 1220 are staggered in the height direction and perpendicular to each other. The other ends wind upward and extend to be connected to the parts corresponding to the heat exchange medium outlet pipe 300 outside different side walls of the tank body 500, thus forming the heat exchange tubes 1200 arranged in a normal staggered manner. According to Figure 4 the direction shown, the first heat exchange tube 1210 is the horizontal heat exchange tube 1200, and the second heat exchange tube 1220 is the vertical heat exchange tube 1200. Through the above setting method, the number of heat exchange tubes 1200 can be increased, the heat exchange area can be enlarged, and it is ensured that there is no heat exchange dead angle for the materials entering the tank body 500. In addition, in order to stagger the first heat exchange tube 1210 and the second heat exchange tube 1220, the bent position of the heat exchange medium inlet pipe 800 must be inclined upward or downward. Correspondingly, the heat exchange medium outlet pipe 300 is also the same, so as to prevent the first heat exchange tube 1210 and the second heat exchange tube 1220 from overlapping or contacting each other and avoid local overheating.

[0042] Furthermore, each layer of heat exchange cavity 400 on each side wall of the tank body 500 can be a heat exchange cavity unit 410, or also includes at least two heat exchange cavity units 410. As shown in the figure, each layer of heat exchange cavity 400 includes two heat exchange cavity units 410. Setting at least two heat exchange cavity units 410 can reduce the leakage of the heat exchange medium when the connection between a single heat exchange cavity unit 410 and the tank body 500 is not sealed. At the same time, it can also reduce the impact force that a single heat exchange cavity unit 410 needs to bear and reduce the thickness of the steel plate used for the heat exchange cavity unit 410.

[0043] Further, the tank body 500 includes a buffer chamber 530, a connecting neck 520, and a tank body main part 510. The buffer chamber 530 and the tank body main part 510 are connected through the connecting neck 520. The width or diameter of the connecting neck 520 is smaller than the width or diameter of the buffer chamber 530 and the tank body main part 510. A baffle 1000 is fixed in the buffer chamber 530. The middle part of the baffle 1000 is located directly below the material inlet 100, and its height is not lower than the peripheral side of the baffle 1000. The width or diameter of the baffle 1000 is also larger than the width or diameter of the connecting neck 520. The part of the buffer chamber 530 connected to the connecting neck 520 is inclined downward from outside to inside. By providing the buffer chamber 530, it is possible to prevent the material entering from the material inlet 100 from directly impacting the heat exchange tubes 1200 and prevent the heat exchange tubes 1200 from deforming. When the material enters from the material inlet 100, it is blocked by the baffle 1000 and flows to the part of the buffer chamber 530 connected to the connecting neck 520, and then flows into the tank body main part 510 through the connecting neck 520 for heat exchange.

[0044] Furthermore, the baffle 1000 is in a conical shape with a smaller top and a larger bottom. The conical baffle 1000 can better guide the material to flow down and avoid the material from depositing on the baffle 1000. For fixing the baffle, two fixing rods can be welded inside the buffer chamber 510. The two ends of the fixing rods are connected to the inner wall of the buffer chamber 510, and the lower part of the baffle 1000 can be fixed on the upper part.

[0045] Furthermore, the tank body main part 510 includes an upper head 511, a body 512, and a lower head 513 connected from top to bottom. The upper head 511 is connected to the connecting neck 520, and the top surface area is smaller than the bottom surface area. The top surface area of the lower head 513 is larger than the bottom surface area. The body 512 is used to arrange the heat exchange tubes 1200. That is, both the upper head 511 and the lower head 513 adopt a conical design to avoid material blockage.

[0046] Furthermore, a distribution plate 1100 is fixed inside the upper head 511. A plurality of distribution plate through holes are spacedly provided in the distribution plate 1100. Through the distribution plate 1100, the incoming molasses and waste honey can be more evenly distributed to each position of the body 512, increasing the contact area between the molasses, waste honey and the heat exchange tubes 1200. The distribution plate 1100 is generally horizontally arranged in the middle of the upper head 511, and its peripheral side is connected to the inner wall of the upper head 511, or it can be connected to the inner wall of the upper head 511 through a fixing member.

[0047] Further, a gas dispersion port 900 is also provided at the top of the tank body 500 to discharge the hot gas during the heat exchange process and maintain the air pressure balance inside the tank body 500.

[0048] For the convenience of installing the heat exchanger, or for its maintenance and safety inspection, a manhole can also be provided on the tank body 500. In this embodiment, a first manhole 200 is provided on one side of the upper head 511. Part of the first manhole 200 is above the distribution plate 1100 to facilitate the maintenance of the upper structure. A second manhole 600 is provided on one side of the lower head 513 to facilitate the maintenance of the upper structure.

Claims

1. A cross-flow massecuite and waste honey heat exchanger, characterized in that include: The tank body has a material inlet at the top and a material outlet at the bottom; A heat exchange medium inlet pipe, which is arranged outside the lower part of the tank body; A heat exchange medium outlet pipe, which is arranged on the outer side of the upper part of the tank body; A plurality of heat exchange tubes are provided, one end of which is connected to the heat exchange medium inlet pipe and the other end is connected to the heat exchange medium outlet pipe, and the tube body is arranged circuitously in the tank body.

2. The cross-flow massecuite and waste honey heat exchanger according to claim 1, characterized in that: It also includes a heat exchange cavity, which is alternately arranged in the height direction on the outer side wall of the tank body above the heat exchange medium inlet pipe and the outer side wall of the tank body below the heat exchange medium outlet pipe, and forms a sealed cavity with the side wall of the tank body; the heat exchange tube includes multiple sections of heat exchange tube segments, and the heat exchange tube segments include a first section of heat exchange tube segments, multiple middle sections of heat exchange tube segments and a last section of heat exchange tube segments. The first section of heat exchange tube segments introduces the heat exchange medium from the heat exchange medium inlet pipe into the heat exchange cavity on the opposite side of the heat exchange medium inlet pipe, and then introduces it into the heat exchange cavity on the upper layer of the heat exchange medium inlet pipe through one of the middle sections of the heat exchange tube segments. The multiple middle sections of the heat exchange tubes allow the heat exchange medium to alternately pass through the tank body and rise into the heat exchange cavities with increasingly higher heights, and finally enter the heat exchange medium outlet pipe from the last section of the heat exchange tube segment for discharge.

3. The cross-flow massecuite and waste honey heat exchanger according to claim 2, characterized in that: The tank body is provided with a tank body through hole for fixing the heat exchange tube segment, and the tank body through hole is sealed and connected to the outer wall of the heat exchange tube segment; The heat exchange cavity located on the outer side wall of the same tank as the heat exchange medium inlet pipe is arranged upward in at least two layers from the heat exchange medium inlet pipe, and each layer is connected with two adjacent rows of the heat exchange tube segments, until the last heat exchange tube segment is correspondingly provided with the heat exchange cavity or the heat exchange medium outlet pipe is connected with it; The heat exchange cavity located on the outer wall of the tank body opposite to the heat exchange medium inlet pipe is arranged in at least two layers from the opposite side of the heat exchange medium inlet pipe upward in sequence, and each layer is connected with two adjacent rows of the heat exchange tube segments therein, until the last heat exchange tube segment is correspondingly provided with the heat exchange medium outlet pipe or the heat exchange cavity is connected with it.

4. The cross-flow massecuite and waste honey heat exchanger according to claim 2 or 3, characterized in that: The portion of the tank body where the heat exchange tube is arranged is in a cubic shape; the heat exchange medium inlet pipe is bent and arranged outside two adjacent tank body side walls, and the heat exchange medium outlet pipe is bent and arranged outside two adjacent tank body side walls; The heat exchange tube includes a first heat exchange tube and a second heat exchange tube, one end of the first heat exchange tube is connected to the portion of the heat exchange medium inlet tube on the outside of one side wall of the tank body, and one end of the second heat exchange tube is connected to the portion of the heat exchange medium inlet tube on the outside of the other side wall of the tank body. The first heat exchange tube and the second heat exchange tube are staggered and perpendicular to each other in the height direction, and the other end rises in a circuitous manner and extends to the corresponding portion of the heat exchange medium outlet pipe on the outside of the side wall of the tank body that is different from that of the heat exchange medium outlet pipe.

5. The cross-flow massecuite and waste honey heat exchanger according to claim 2 or 3, characterized in that: Each layer of the heat exchange cavity of each side wall of the tank body includes at least two heat exchange cavity units.

6. The cross-flow massecuite and waste honey heat exchanger according to claim 1, characterized in that: The tank body includes a buffer chamber, a connecting neck and a tank body main body, the buffer chamber and the tank body main body are connected by a connecting neck, the width or diameter of the connecting neck is smaller than the width or diameter of the buffer chamber and the tank body main body, a baffle is fixed in the buffer chamber, the middle of the baffle is located directly below the material inlet, and the height is not lower than the circumference of the baffle, the width or diameter of the baffle is also larger than the width or diameter of the connecting neck, and the portion of the buffer chamber connected to the connecting neck is inclined downwardly transitioned from outside to inside.

7. The cross-flow massecuite and waste honey heat exchanger according to claim 6, characterized in that: The baffle is in a cone shape that is smaller at the top and larger at the bottom.

8. The cross-flow massecuite and waste honey heat exchanger according to claim 6 or 7, characterized in that: The tank body includes an upper head, a body and a lower head connected from top to bottom, the upper head is connected to the connecting neck, the top surface area is smaller than the bottom surface area, the top surface area of ​​the lower head is larger than the bottom surface area, and the body is used to set the heat exchange tube.

9. The cross-flow massecuite and waste honey heat exchanger according to claim 8, characterized in that: A distribution plate is fixed inside the upper head, and a plurality of distribution plate through holes are formed in the distribution plate at intervals.

10. The cross-flow massecuite and waste honey heat exchanger according to claim 1, characterized in that: The top of the tank body is also provided with a gas diffusion port.

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