Tomato sauce concentration system

Abstract

The invention relates to the technical field of tomato sauce production, in particular to a tomato sauce concentration system which comprises a pre-evaporation unit, a first-line evaporation unit, a second-line evaporation unit and a third-line evaporation unit. The pre-evaporation unit is used for pre-evaporating tomato juice. The first-line evaporation unit is communicated with the pre-evaporation unit and is used for concentrating the pre-evaporated tomato juice into tomato sauce with first concentration; and the second-line evaporation unit is respectively communicated with the pre-evaporation unit and the first-line evaporation unit and is used for concentrating the pre-evaporated tomato juice into tomato sauce with second concentration. And the third-line evaporation unit is respectively communicated with the pre-evaporation unit and the first-line evaporation unit, and is used for concentrating the pre-evaporated tomato juice into tomato sauce with a third concentration and conveying the tomato sauce with the third concentration to the first-line evaporation unit. Effective combination of the first-line evaporation unit, the second-line evaporation unit and the third-line evaporation unit is realized, the comprehensive productivity of the system is further improved, and meanwhile, the coal consumption per ton of tomato sauce can be greatly saved.

Description

Technical Field

[0001] The invention relates to the technical field of tomato paste production, in particular to a tomato paste concentration system. Background Art

[0002] A tomato paste production line with a capacity of 1,000 tons can consistently produce tomato paste with a concentration of 36%-38%. A tomato paste production line with a capacity of 500 tons can consistently produce tomato paste with a concentration of 28%-30%, but cannot consistently produce tomato paste with a concentration of 36%-38%. A tomato paste production line with a capacity of 240 tons cannot produce tomato paste with a concentration of 36%-38%. Therefore, when producing tomato paste with a concentration of 36%-38%, the 240-ton tomato paste production line is idle and cannot be effectively utilized.

[0003] Therefore, how to further improve production capacity has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The present invention provides a tomato paste concentration system to solve the problem of how to further improve production capacity.

[0005] The present invention provides a tomato paste concentration system, comprising: A pre-evaporation unit, used for pre-evaporating tomato juice; a first-line evaporation unit, connected to the pre-evaporation unit, for concentrating the pre-evaporated tomato juice into a tomato paste of a first concentration; The second-line evaporation unit is connected to the pre-evaporation unit and is used to concentrate the pre-evaporated tomato juice into a tomato paste of a second concentration; the second-line evaporation unit is also connected to the first-line evaporation unit; The three-line evaporation unit is connected to the pre-evaporation unit and the first-line evaporation unit respectively, and is used to concentrate the pre-evaporated tomato juice into a tomato paste of a third concentration, and transport the tomato paste of the third concentration to the first-line evaporation unit; The first concentration is greater than the second concentration; the second concentration is greater than the third concentration.

[0006] In some embodiments, the pre-evaporation unit comprises: The pre-evaporator has a tomato juice outflow port formed at the bottom and a tomato juice reflux port formed at the top; a circulation pump, wherein the inlet is connected to the tomato juice outlet, and the outlet is connected to the tomato juice return port; a compressor, an inlet of which is communicated with a lower portion of the interior of the pre-evaporator, and an outlet of which is communicated with an upper portion of the interior of the pre-evaporator; A discharge pump, the inlet of which is connected to the tomato juice outlet, and the outlets of which are respectively connected to the first-line evaporation unit, the second-line evaporation unit, and the third-line evaporation unit; The steam supply pipeline is communicated with the upper part inside the pre-evaporator.

[0007] In some of these embodiments, the pre-evaporator includes: A housing, with a juice temporary storage cavity formed in the lower part inside, a heating cavity formed in the upper part inside, a tomato juice outlet formed at the bottom, and a tomato juice return port formed at the top; A shunt plate, installed at the top inside the heating cavity; a plurality of shunt holes are formed on the shunt plate; A receiving plate, installed in the middle of the top surface of the shunt plate; A plurality of diversion pipes, all vertically fixed inside the heating cavity, with the top openings corresponding to the plurality of shunt holes one by one; on one side inside each diversion pipe, a plurality of first-line intercepting pieces and a plurality of first-line support rods are uniformly arranged along the vertical direction, and on the other side, a plurality of second-line intercepting pieces and a plurality of second-line support rods are uniformly arranged along the vertical direction; the plurality of first-line intercepting pieces and the plurality of first-line support rods are alternately arranged along the vertical direction; the plurality of second-line intercepting pieces and the plurality of second-line support rods are alternately arranged along the vertical direction; the plurality of second-line intercepting pieces and the plurality of first-line intercepting pieces are staggered along the vertical direction; at one end of each first-line support rod away from the inner wall of the diversion pipe, an inclined first-line stirring fan blade is installed; at one end of each second-line support rod away from the inner wall of the diversion pipe, an inclined second-line stirring fan blade is installed.

[0008] In some of these embodiments, the first-line evaporation unit includes: A first-line triple-effect evaporator, with the inlet communicated with the outlet of the discharging pump; A first-line triple-effect heater, communicated with the first-line triple-effect evaporator; A first-line double-effect evaporator, communicated with the first-line triple-effect evaporator; A first-line double-effect heater, communicated with the first-line double-effect evaporator; A first-line single-effect first-stage evaporator, communicated with the first-line double-effect evaporator; A first-line single-effect first-stage heater, communicated with the first-line single-effect first-stage evaporator; A first-line single-effect second-stage evaporator, communicated with the first-line single-effect first-stage evaporator and the filling machine respectively; A first-line single-effect second-stage heater, communicated with the first-line single-effect second-stage evaporator.

[0009] In some of these embodiments, the second-line evaporation unit includes: A second-line triple-effect evaporator, with the inlet communicated with the outlet of the discharging pump; A second-line triple-effect heater, communicated with the second-line triple-effect evaporator; A second-line double-effect evaporator, communicated with the second-line triple-effect evaporator; A second-line double-effect heater, communicated with the second-line double-effect evaporator; The two-line single-effect evaporator is respectively connected to the two-line double-effect evaporator, the one-line single-effect first-stage evaporator, and the filling machine; The two-line single-effect heater is connected to the two-line single-effect evaporator.

[0010] In some embodiments, the three-line evaporation unit includes: The three-line double-effect evaporator, whose inlet is connected to the outlet of the discharging pump; The three-line double-effect heater is connected to the three-line double-effect evaporator; The three-line single-effect evaporator is respectively connected to the three-line double-effect evaporator, the one-line double-effect evaporator, and the one-line single-effect first-stage evaporator; The three-line single-effect heater is connected to the three-line single-effect evaporator.

[0011] In some embodiments, it further includes: The beating storage tank; The fruit juice delivery pump, whose inlet is connected to the outlet of the beating storage tank; The double-filter, whose inlet is connected to the outlet of the fruit juice delivery pump; The cyclone filter, whose inlet is connected to the outlet of the double-filter; The preheater, with the material inlet connected to the outlet of the cyclone filter and the material outlet connected to the tomato juice return port of the pre-evaporator.

[0012] In some embodiments, it further includes: The condenser, with the material inlet at the lower part inside the pre-evaporator and the material outlet respectively connected to the inlet of the compressor and the heating medium inlet of the preheater.

[0013] The beneficial effects of the present invention are as follows: The tomato paste concentration system of the present invention sets up a pre-evaporation unit, a one-line evaporation unit, a two-line evaporation unit, and a three-line evaporation unit. The pre-evaporation unit pre-evaporates the tomato juice, increasing the concentration of the tomato juice from 5 degrees Brix to 7 - 9 degrees Brix, reducing the working load of the one-line evaporation unit, the two-line evaporation unit, and the three-line evaporation unit. With the help of the one-line evaporation unit, the pre-evaporated tomato juice is concentrated into tomato paste of the first concentration, or with the help of the two-line evaporation unit, the pre-evaporated tomato juice is concentrated into tomato paste of the second concentration, or with the help of the two-line evaporation unit and the one-line evaporation unit, the pre-evaporated tomato juice is concentrated into tomato paste of the first concentration, or with the help of the three-line evaporation unit and the one-line evaporation unit, the pre-evaporated tomato juice is concentrated into tomato paste of the first concentration. In this way, an effective combination of the one-line evaporation unit, the two-line evaporation unit, and the three-line evaporation unit is achieved, further improving the production capacity, which can be increased to 2400 tons. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of some specific embodiments of a tomato paste concentration system of the present invention; Figure 2 is Figure 1 A schematic structural view of a pre-evaporation unit in the ketchup concentration system shown; Figure 3 is Figure 2 A schematic internal structure view of a pre-evaporator in the pre-evaporation unit shown; Figure 4 is Figure 3 A partial enlarged view of area A in; Figure 5 A schematic structural view of some specific embodiments of a ketchup concentration system according to the present invention.

[0015] In the drawings, 110, pre-evaporation unit; 111, pre-evaporator; 1111, housing; 11111, steam inlet; 1112, shunt plate; 1113, receiving plate; 1114, diversion pipe; 11141, first-line intercepting piece; 11142, first-line support rod; 11143, first-line stirring fan blade; 11144, second-line intercepting piece; 11145, second-line support rod; 11146, second-line stirring fan blade; 112, circulation pump; 113, compressor; 114, discharge pump; 115, steam supplement pipe; 120, first-line evaporation unit; 121, first-line triple-effect evaporator; 122, first-line triple-effect heater; 123, first-line double-effect evaporator; 124, first-line double-effect heater; 125, first-line single-effect first-stage evaporator; 126, first-line single-effect first-stage heater; 127, first-line single-effect second-stage evaporator; 128, first-line single-effect second-stage heater; 130, second-line evaporation unit; 131, second-line triple-effect evaporator; 132, second-line triple-effect heater; 133, second-line double-effect evaporator; 134, second-line double-effect heater; 135, second-line single-effect evaporator; 136, second-line single-effect heater; 140, third-line evaporation unit; 141, third-line double-effect evaporator; 142, third-line double-effect heater; 143, third-line single-effect evaporator; 144, third-line single-effect heater; 150, pulping storage tank; 160, juice transfer pump; 171, double filter; 172, cyclone filter; 180, preheater; 190, condenser. Detailed implementation manners

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] As described in the background art, for a tomato paste production line with a production capacity of 1000 tons, tomato paste with a concentration of 36%-38% can be stably produced. For a tomato paste production line with a production capacity of 500 tons, tomato paste with a concentration of 28%-30% can be stably produced, but tomato paste with a concentration of 36%-38% cannot be stably produced. For a tomato paste production line with a production capacity of 240 tons, tomato paste with a concentration of 36%-38% cannot be produced. Therefore, when producing tomato paste with a concentration of 36%-38%, the tomato paste production lines with production capacities of 240 tons and 500 tons are idle and cannot be effectively utilized. Therefore, how to further improve the production capacity has become a technical problem that needs to be urgently solved by those skilled in the art.

[0018] To solve the above problems, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the present invention provides a tomato paste concentration system, including a pre-evaporation unit 110, a first-line evaporation unit 120, a second-line evaporation unit 130, and a third-line evaporation unit 140. The pre-evaporation unit 110 is used for pre-evaporating tomato juice. The first-line evaporation unit 120 is connected to the pre-evaporation unit 110 and is used for concentrating the pre-evaporated tomato juice into tomato paste with a first concentration. The second-line evaporation unit 130 is connected to the pre-evaporation unit 110 and is used for concentrating the pre-evaporated tomato juice into tomato paste with a second concentration. The second-line evaporation unit 130 is also connected to the first-line evaporation unit 120. The third-line evaporation unit 140 is respectively connected to the pre-evaporation unit 110 and the first-line evaporation unit 120, and is used for concentrating the pre-evaporated tomato juice into tomato paste with a third concentration and transporting the tomato paste with the third concentration to the first-line evaporation unit 120. Among them, the first concentration is greater than the second concentration, and the second concentration is greater than the third concentration. Specifically, the first concentration is 36%-38%, the second concentration is 28%-30%, and the third concentration is less than 28%.

[0019] The working process and principle of the tomato paste concentration system are as follows: First, the pre-evaporation unit 110 pre-evaporates the tomato juice, increasing the concentration of the tomato juice from 5 degrees Brix to 7-9 degrees Brix, reducing the working loads of the first-stage evaporation unit 120, the second-stage evaporation unit 130, and the third-stage evaporation unit 140. Then, the pre-evaporated tomato juice is concentrated into tomato paste of the first concentration by means of the first-stage evaporation unit 120, or into tomato paste of the second concentration by means of the second-stage evaporation unit 130, or into tomato paste of the first concentration by means of the second-stage evaporation unit 130 and the first-stage evaporation unit 120, or into tomato paste of the first concentration by means of the third-stage evaporation unit 140 and the first-stage evaporation unit 120. In this way, an effective combination of the first-stage evaporation unit 120, the second-stage evaporation unit 130, and the third-stage evaporation unit 140 is achieved, further improving the production capacity, which can be increased to 2,400 tons.

[0020] Specifically, in the demonstration example, as Figure 1 and Figure 2 shown, the pre-evaporation unit 110 includes a pre-evaporator 111, a circulation pump 112, a compressor 113, a discharge pump 114, and a steam supply pipe 115. A tomato juice outlet is formed at the bottom of the pre-evaporator 111, a tomato juice return port is formed at the top, and a steam inlet 11111 is formed at the upper part of the side wall. The inlet of the circulation pump 112 is communicated with the tomato juice outlet, and the outlet is communicated with the tomato juice return port. The circulation pump 112 can make the tomato juice flowing out of the tomato juice return port flow back into the pre-evaporator 111. The inlet of the compressor 113 is communicated with the lower part inside the pre-evaporator 111, and the outlet is communicated with the upper part inside the pre-evaporator 111 through the steam inlet 11111. The inlet of the discharge pump 114 is communicated with the tomato juice outlet, and the outlet is respectively communicated with the first-stage evaporation unit 120, the second-stage evaporation unit 130, and the third-stage evaporation unit 140, for delivering the pre-evaporated tomato juice to the first-stage evaporation unit 120, the second-stage evaporation unit 130, and the third-stage evaporation unit 140. The steam supply pipe 115 is communicated with the upper part inside the pre-evaporator 111 through the steam inlet 11111, for supplementing steam.

[0021] The working process and principle of the pre-evaporation unit 110 are as follows: The tomato juice to be evaporated enters the pre-evaporator 111 through the tomato juice return port. Inside the pre-evaporator 111, it exchanges heat with the steam, and part of the liquid water in the tomato juice is heated and evaporated. With the help of the circulation pump 112, the tomato juice flows into the pre-evaporator 111 through the tomato juice return port multiple times to be heated, so that the concentration of the tomato juice is continuously increased. The temperature of the steam flowing out of the pre-evaporator 111 is 60°C - 65°C. With the help of the compressor 113, the steam temperature can be raised to 70°C - 78°C, and then it is transported to the pre-evaporator 111 through the steam inlet 11111 to heat the tomato juice. When the concentration of the tomato juice reaches the requirement, the discharge pump 114 transports the tomato juice to the first-line evaporation unit 120, the second-line evaporation unit 130, and the third-line evaporation unit 140.

[0022] Specifically, in the demonstration example, as Figure 2 and Figure 3 shown, the pre-evaporator 111 includes a housing 1111, a shunt plate 1112, a receiving plate 1113, and a plurality of guide pipes 1114. A juice temporary storage cavity is formed in the lower part of the interior of the housing 1111, a heating cavity is formed in the upper part of the interior, a tomato juice outlet is formed at the bottom, and a tomato juice return port is formed at the top. A steam inlet 11111 is opened on the side wall of the upper part of the housing 1111. The shunt plate 1112 is installed at the top inside the heating cavity. A plurality of shunt holes are formed in the shunt plate 1112. The receiving plate 1113 is fixedly installed in the middle of the top surface of the shunt plate 1112 for receiving tomato juice. The plurality of guide pipes 1114 are all vertically fixed inside the heating cavity, and the top openings correspond to the plurality of shunt holes one by one. The returned tomato juice falls onto the top surface of the receiving plate 1113 through the tomato juice return port. After that, it spontaneously flows to the top surface of the shunt plate 1112. Then, it flows through the shunt holes and falls into the guide pipes 1114. And the heating steam flows into the heating cavity from the steam inlet 11111. Inside the heating cavity, the steam heats the guide pipes 1114 and the tomato juice flowing through the guide pipes 1114, and the heated tomato juice falls into the juice temporary storage cavity.

[0023] Preferably, steam inlets 11111 are respectively opened on the opposite sides of the upper part of the housing 1111. The heating steam flows into the heating cavity from the steam inlets 11111 on both sides, which is beneficial to the uniform distribution of the steam in the heating cavity and improves the heating efficiency and heating effect.

[0024] Preferably, as Figure 3 and Figure 4As shown, on one side inside each diversion pipe 1114, a plurality of first-line intercepting pieces 11141 and a plurality of first-line support rods 11142 are uniformly arranged in the vertical direction. On the other side, a plurality of second-line intercepting pieces 11144 and a plurality of second-line support rods 11145 are uniformly arranged in the vertical direction. The plurality of first-line intercepting pieces 11141 and the plurality of first-line support rods 11142 are alternately arranged in the vertical direction. The plurality of second-line intercepting pieces 11144 and the plurality of second-line support rods 11145 are alternately arranged in the vertical direction. The plurality of second-line intercepting pieces 11144 and the plurality of first-line intercepting pieces 11141 are staggeredly arranged in the vertical direction. One end of each first-line support rod 11142 away from the inner wall of the diversion pipe 1114 is installed with a rotatable first-line stirring fan blade 11143 arranged obliquely. One end of each second-line support rod 11145 away from the inner wall of the diversion pipe 1114 is installed with a rotatable second-line stirring fan blade 11146 arranged obliquely. The staggeredly arranged first-line intercepting pieces 11141 and second-line intercepting pieces 11144 extend the flow path of the tomato juice in the diversion pipe 1114 and generate a certain resistance to the flow of the tomato juice, thereby extending the time for the tomato juice to flow through the diversion pipe 1114, increasing the heating time of the tomato juice per cycle, facilitating the reduction of the number of cycles, and further increasing the concentration of the tomato juice, and thus further increasing the production capacity. On the one hand, the plurality of rotatable first-line stirring fan blades 11143 and the plurality of rotatable second-line stirring fan blades 11146 generate a certain resistance to the flow of the tomato juice in the diversion pipe 1114, thereby extending the time for the tomato juice to flow through the diversion pipe 1114, increasing the heating time of the tomato juice per cycle, facilitating the reduction of the number of cycles, and further increasing the concentration of the tomato juice, and thus further increasing the production capacity. On the other hand, the flow of the tomato juice causes each first-line stirring fan blade 11143 and each second-line stirring fan blade 11146 to rotate, disrupting the flow layers of the tomato juice, facilitating the uniform heating of the tomato juice in the diversion pipe 1114, thus facilitating the reduction of the number of cycles, and further increasing the concentration of the tomato juice, and thus further increasing the production capacity. Additionally, the plurality of first-line intercepting pieces 11141, the plurality of first-line support rods 11142, the plurality of second-line intercepting pieces 11144, the plurality of second-line support rods 11145, the plurality of first-line stirring fan blades 11143, and the plurality of second-line stirring fan blades 11146 increase the contact area between the diversion pipe 1114 and the tomato juice flowing through the diversion pipe 1114, thereby increasing the heating area, and thus improving the heating efficiency and heating effect.

[0025] Specifically, in the demonstration example, as Figure 1As shown, a first-line evaporation unit 120 includes a first-line triple-effect evaporator 121, a first-line triple-effect heater 122, a first-line double-effect evaporator 123, a first-line double-effect heater 124, a first-line first-stage single-effect evaporator 125, a first-line first-stage single-effect heater 126, a first-line second-stage single-effect evaporator 127, and a first-line second-stage single-effect heater 128. The inlet of the first-line triple-effect evaporator 121 is communicated with the outlet of the discharge pump 114. The first-line triple-effect heater 122 is communicated with the first-line triple-effect evaporator 121 and is used to provide heating steam for the first-line triple-effect evaporator 121. The inlet of the first-line double-effect evaporator 123 is communicated with the outlet of the first-line triple-effect evaporator 121. The first-line double-effect heater 124 is communicated with the first-line double-effect evaporator 123 and is used to provide heating steam for the first-line double-effect evaporator 123. The inlet of the first-line first-stage single-effect evaporator 125 is communicated with the outlet of the first-line double-effect evaporator 123. The first-line first-stage single-effect heater 126 is communicated with the first-line first-stage single-effect evaporator 125 and is used to provide heating steam for the first-line first-stage single-effect evaporator 125. The first-line second-stage single-effect evaporator 127 is respectively communicated with the outlet of the first-line first-stage single-effect evaporator 125 and the inlet of the filling machine. The first-line second-stage single-effect heater 128 is communicated with the first-line second-stage single-effect evaporator 127 and is used to provide heating steam for the first-line second-stage single-effect evaporator 127. The pre-evaporated tomato juice is successively processed through the first-line triple-effect evaporator 121, the first-line double-effect evaporator 123, the first-line first-stage single-effect evaporator 125, and the first-line second-stage single-effect evaporator 127 into tomato paste of a first concentration and then flows to the filling machine for filling. A second-line evaporation unit 130 includes a second-line triple-effect evaporator 131, a second-line triple-effect heater 132, a second-line double-effect evaporator 133, a second-line double-effect heater 134, a second-line single-effect evaporator 135, and a second-line single-effect heater 136. The inlet of the second-line triple-effect evaporator 131 is communicated with the outlet of the discharge pump 114. The second-line triple-effect heater 132 is communicated with the second-line triple-effect evaporator 131 and is used to provide heating steam for the second-line triple-effect evaporator 131. The inlet of the second-line double-effect evaporator 133 is communicated with the outlet of the second-line triple-effect evaporator 131. The second-line double-effect heater 134 is communicated with the second-line double-effect evaporator 133 and is used to provide heating steam for the second-line double-effect evaporator 133. The second-line single-effect evaporator 135 is respectively communicated with the outlet of the second-line double-effect evaporator 133, the inlet of the first-line first-stage single-effect evaporator 125, and the inlet of the filling machine. The second-line single-effect heater 136 is communicated with the second-line single-effect evaporator 135 and is used to provide heating steam for the second-line single-effect evaporator 135. The pre-evaporated tomato juice is successively processed through the second-line triple-effect evaporator 131, the second-line double-effect evaporator 133, and the second-line single-effect evaporator 135 into tomato paste of a second concentration and then flows to the filling machine for filling. Of course, the pre-evaporated tomato juice is successively processed through the second-line triple-effect evaporator 131, the second-line double-effect evaporator 133, and the second-line single-effect evaporator 135, and then successively processed through the first-line first-stage single-effect evaporator 125 and the first-line second-stage single-effect evaporator 127 into tomato paste of a first concentration and then flows to the filling machine for filling.The three-line evaporation unit 140 includes a three-line second-effect evaporator 141, a three-line second-effect heater 142, a three-line first-effect evaporator 143, and a three-line first-effect heater 144. The inlet of the three-line second-effect evaporator 141 is connected to the outlet of the discharge pump 114. The three-line second-effect heater 142 is connected to the three-line second-effect evaporator 141 to provide heating steam to the three-line second-effect evaporator 141. The three-line first-effect evaporator 143 is connected to the outlet of the three-line second-effect evaporator 141, the inlet of the first-line second-effect evaporator 123, and the inlet of the first-line first-stage evaporator 125. The three-line first-effect heater 144 is connected to the three-line first-effect evaporator 143 to provide heating steam to the three-line first-effect evaporator 143. The pre-evaporated tomato juice passes through the three-line second-effect evaporator 141 and the three-line first-effect evaporator 143 in sequence to be processed into tomato sauce of the third consistency. The tomato paste of the third concentration can then be sequentially passed through the first-line two-effect evaporator 123, the first-line one-effect one-stage evaporator 125, and the first-line one-effect two-stage evaporator 127 before being fed to the filling machine for filling. Of course, the tomato paste of the third concentration can also be sequentially passed through the first-line one-effect one-stage evaporator 125 and the first-line one-effect two-stage evaporator 127 before being fed to the filling machine for filling.

[0026] Specifically, if Figure 5 As shown, the tomato paste concentration system also includes two pulping tanks 150, multiple juice pumps 160, a duplex filter 171, a shakron filter 172, a preheater 180, and a condenser 190. The inlets of the multiple juice pumps 160 are connected to the outlets of each pulping tank 150. The inlet of the duplex filter 171 is connected to the outlet of each juice pump 160 for preliminary filtering of the tomato juice. The inlet of the shakron filter 172 is connected to the outlet of the duplex filter 171 for secondary filtering of the tomato juice. The material inlet of the preheater 180 is connected to the outlet of the shakron filter 172, and the material outlet is connected to the tomato juice return port of the pre-evaporator 111, preheating the tomato juice entering the pre-evaporator 111, thereby improving evaporation efficiency and production capacity. The material inlet of the condenser 190 is connected to the lower portion of the pre-evaporator 111, and the material outlet is connected to the inlet of the compressor 113. The material outlet of the condenser 190 is also connected to the heating medium inlet of the preheater 180 for providing the heating medium to the preheater 180 , thereby improving the utilization rate of heat energy.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0028] In addition, the terms "first line" and "second line" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first line" and "second line" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0029] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation of the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A tomato paste concentration system, characterized in that: Comprising: A pre-evaporation unit for pre-evaporating tomato juice; A first-line evaporation unit connected to the pre-evaporation unit for concentrating the pre-evaporated tomato juice into tomato paste of a first concentration; A second-line evaporation unit connected to the pre-evaporation unit for concentrating the pre-evaporated tomato juice into tomato paste of a second concentration; the second-line evaporation unit is also connected to the first-line evaporation unit; A third-line evaporation unit respectively connected to the pre-evaporation unit and the first-line evaporation unit for concentrating the pre-evaporated tomato juice into tomato paste of a third concentration and transporting the tomato paste of the third concentration to the first-line evaporation unit; The first concentration is greater than the second concentration; the second concentration is greater than the third concentration.

2. The ketchup concentration system according to claim 1, characterized in that: The pre-evaporation unit includes: A pre-evaporator having a tomato juice outlet formed at the bottom and a tomato juice return port formed at the top; A circulation pump with an inlet connected to the tomato juice outlet and an outlet connected to the tomato juice return port; A compressor with an inlet connected to the lower part inside the pre-evaporator and an outlet connected to the upper part inside the pre-evaporator; A discharge pump with an inlet connected to the tomato juice outlet and outlets respectively connected to the first-line evaporation unit, the second-line evaporation unit, and the third-line evaporation unit; A steam supplement pipeline connected to the upper part inside the pre-evaporator.

3. The ketchup concentration system according to claim 2, characterized in that: The pre-evaporator includes: A housing having a juice temporary storage cavity formed in the lower part inside, a heating cavity formed in the upper part inside, the tomato juice outlet formed at the bottom, and the tomato juice return port formed at the top; A shunt plate installed at the top inside the heating cavity; a plurality of shunt holes are formed on the shunt plate; A receiving plate installed in the middle of the top surface of the shunt plate; A plurality of diversion pipes, all vertically fixed inside the heating cavity, with the top openings corresponding to the plurality of shunt holes one by one; on one side of each diversion pipe, a plurality of first-line intercepting pieces and a plurality of first-line support rods are uniformly arranged along the vertical direction, and on the other side, a plurality of second-line intercepting pieces and a plurality of second-line support rods are uniformly arranged along the vertical direction; the plurality of first-line intercepting pieces and the plurality of first-line support rods are alternately arranged along the vertical direction; the plurality of second-line intercepting pieces and the plurality of second-line support rods are alternately arranged along the vertical direction; the plurality of second-line intercepting pieces and the plurality of first-line intercepting pieces are staggered along the vertical direction; at one end of each first-line support rod away from the inner wall of the diversion pipe, an inclined first-line stirring fan blade is installed; at one end of each second-line support rod away from the inner wall of the diversion pipe, an inclined second-line stirring fan blade is installed.

4. The ketchup concentration system according to claim 2, wherein The first-line evaporation unit includes: A first-line triple-effect evaporator with an inlet connected to the outlet of the discharge pump; A first-line triple-effect heater connected to the first-line triple-effect evaporator; A first-line double-effect evaporator connected to the first-line triple-effect evaporator; A first-line double-effect heater connected to the first-line double-effect evaporator; A first-line single-effect first-stage evaporator connected to the first-line double-effect evaporator; A first-line single-effect first-stage heater connected to the first-line single-effect first-stage evaporator; A first-line single-effect second-stage evaporator respectively connected to the first-line single-effect first-stage evaporator and a filling machine; One-line one-effect two-stage heater, which is connected to the one-line one-effect two-stage evaporator.

5. The ketchup concentration system according to claim 4, characterized in that, The second-line evaporation unit includes: Second-line three-effect evaporator, the inlet of which is connected to the outlet of the discharge pump; Second-line three-effect heater, which is connected to the second-line three-effect evaporator; Second-line two-effect evaporator, which is connected to the second-line three-effect evaporator; Second-line two-effect heater, which is connected to the second-line two-effect evaporator; Second-line one-effect evaporator, which is respectively connected to the second-line two-effect evaporator, the one-line one-effect first-stage evaporator, and the filling machine; Second-line one-effect heater, which is connected to the second-line one-effect evaporator.

6. The ketchup concentration system according to claim 4, wherein, The third-line evaporation unit includes: Third-line two-effect evaporator, the inlet of which is connected to the outlet of the discharge pump; Third-line two-effect heater, which is connected to the third-line two-effect evaporator; Third-line one-effect evaporator, which is respectively connected to the third-line two-effect evaporator, the one-line two-effect evaporator, and the one-line one-effect first-stage evaporator; Third-line one-effect heater, which is connected to the third-line one-effect evaporator.

7. The ketchup concentration system according to any one of claims 2 to 6, characterized in that, It further includes: Beating storage tank; Juice transfer pump, the inlet of which is connected to the outlet of the beating storage tank; Duplex filter, the inlet of which is connected to the outlet of the juice transfer pump; Cyclone filter, the inlet of which is connected to the outlet of the duplex filter; Preheater, the material inlet of which is connected to the outlet of the cyclone filter, and the material outlet of which is connected to the tomato juice return port of the pre-evaporator.

8. The ketchup concentration system according to claim 7, wherein, It further includes: Condenser, the material inlet of which is connected to the lower part inside the pre-evaporator, and the material outlet of which is respectively connected to the inlet of the compressor and the heating medium inlet of the preheater.

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