Energy-saving sugar boiling system for rock sugar production

Abstract

The utility model relates to the technical field of rock candy production, and discloses an energy-saving sugar boiling system for rock candy production, which comprises a sugar dissolving tank, a vacuum sugar boiling tank and a plate heat exchanger, a sugar discharge port of the sugar dissolving tank is communicated with the vacuum sugar boiling tank through a syrup pipeline, and the syrup pipeline is connected with a syrup pump and a syrup filtering component. A juice catcher and a steam drum are respectively arranged at the top and the bottom in the sugar dissolving tank and the vacuum sugar boiling tank, and a heating steam pipe and a steam condensate pipe which are communicated with the steam drum are respectively arranged on the sugar dissolving tank and the vacuum sugar boiling tank; a steam pipe is arranged at the top of the vacuum sugar boiling tank and connected with a plate heat exchanger, a vacuum pump is arranged at the steam condensate pipe end of the plate heat exchanger, and the water outlet end of the vacuum pump is communicated with a water inlet of the sugar dissolving tank. The sugar dissolving tank and the vacuum sugar boiling tank are matched for dissolving and boiling sugar, the production efficiency is improved, the vacuum sugar boiling tank adopts vacuum sugar boiling, the sugar boiling temperature is reduced, reducing sugar is reduced, the system is more energy-saving, and the quality of syrup is better.

Description

Technical Field

[0001] The utility model relates to the technical field of rock sugar production, in particular to an energy-saving rock sugar production and boiling system. Background Art

[0002] Rock sugar is made by boiling white sugar in water to form a supersaturated solution, and then going through processes such as crystallization, dehydration and drying to form rock sugar. The sugar boiling process is generally carried out in a sugar boiling tank, but the existing sugar dissolving and sugar boiling are carried out in the same tank, and the sugar is usually boiled at normal pressure, resulting in low production efficiency, high system energy consumption, and the sugar boiling steam is not fully recycled. Utility Model Content

[0003] The purpose of the utility model is to provide an energy-saving rock sugar production and sugar boiling system in view of the above problems, which improves production efficiency by using a sugar dissolving tank and a vacuum sugar boiling tank to cooperate with each other for dissolving sugar and boiling sugar, and uses the vacuum sugar boiling tank to boil sugar under vacuum conditions, thereby reducing the boiling temperature and the energy consumption of the system, and can further recycle and utilize water vapor.

[0004] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: an energy-saving rock sugar production and sugar boiling system, comprising a sugar dissolving tank, a vacuum sugar boiling tank and a plate heat exchanger, the sugar outlet of the sugar dissolving tank is connected to the vacuum sugar boiling tank through a syrup pipeline, the syrup pipeline is connected with a syrup pump and a syrup filtering assembly, so that the syrup of the sugar dissolving tank is pumped into the vacuum sugar boiling tank after filtering, the top and bottom of the sugar dissolving tank and the vacuum sugar boiling tank are respectively provided with a juice catcher and a steam drum, the sugar dissolving tank and the vacuum sugar boiling tank are respectively provided with a heating steam pipe and a steam condensate pipe connected to the steam drum; the top of the vacuum sugar boiling tank is provided with a water vapor pipe, the water vapor pipe is connected with the plate heat exchanger, the water vapor volatilized by the vacuum sugar boiling tank is heat-exchanged and converted into steam condensate in the plate heat exchanger, the steam condensate pipe end of the plate heat exchanger is provided with a vacuum pump, and the water outlet end of the vacuum pump is communicated with the water inlet of the sugar dissolving tank through a water pipeline.

[0005] Furthermore, it also includes a condensate collection box, the water inlet of which is respectively connected to the condensate pipe of the sugar dissolving tank, the condensate pipe of the vacuum sugar boiling tank, and the water outlet of the vacuum pump.

[0006] Furthermore, the water outlet of the condensed water collection box is connected to the water inlet of the sugar dissolving tank, and the water outlet pipe end of the condensed water collection box is sequentially connected to a condensed water pump, a condensed water filter and a condensed water valve B3.

[0007] Furthermore, there are two sugar dissolving tanks arranged in parallel, a steam valve A1 is provided on the heating steam pipe of each sugar dissolving tank, a condensate valve B1 is provided on the condensate pipe of each sugar dissolving tank, a water inlet valve C1 is provided on the water inlet pipe of each sugar dissolving tank, and a sugar discharge valve D1 is provided on the sugar discharge port of the sugar dissolving tank.

[0008] Furthermore, the syrup filtering component includes a primary filtering component and a secondary filtering component which are connected in series.

[0009] Furthermore, the primary filter assembly and the secondary filter assembly each include two syrup filters connected in parallel, and the inlet end and the outlet end of each syrup filter are respectively connected to a filter inlet valve E1 and a filter outlet valve F1.

[0010] Furthermore, a steam valve A2 is provided on the heating steam pipe of the vacuum sugar boiling pot, and a condensate valve B2 is provided on the condensate pipe of the vacuum sugar boiling pot.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The present invention provides a new type of sugar dissolving tank, a vacuum sugar boiling tank and a plate heat exchanger. On the one hand, the sugar dissolving tank and the vacuum sugar boiling tank cooperate with each other to dissolve sugar and boil sugar, thereby improving production efficiency. Since the vacuum sugar boiling tank adopts vacuum sugar boiling, the boiling point of the steam in the sugar boiling tank can be reduced, thereby reducing the sugar boiling temperature, reducing reducing sugar, reducing system energy consumption, and improving the quality of syrup. On the other hand, the steam volatilized from the vacuum sugar boiling tank can be heat-exchanged by the plate heat exchanger to generate pure condensed water, which can be pumped into the sugar dissolving tank for recycling, so that the condensed water can be fully recycled and utilized, further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an energy-saving rock sugar production and boiling system of the utility model;

[0014] In the figure: 1-sugar dissolving tank, 11-steam drum, 12-juice catcher, 2-syrup pump, 3-primary filter assembly, 4-secondary filter assembly, 5-vacuum sugar boiling tank, 6-plate heat exchanger, 7-vacuum pump, 8-condensate collection box, 9-condensate pump, 10-condensate filter. DETAILED DESCRIPTION

[0015] In order to make the technical personnel of the technical field better understand the present utility model scheme, the technical scheme in the present utility model embodiment will be clearly and completely described below in conjunction with the drawings in the present utility model embodiment. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by the technical personnel in the technical field belonging to the present utility model. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0016] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0017] like Figure 1As shown, an energy-saving rock sugar production and sugar boiling system comprises a sugar dissolving tank 1, a vacuum sugar boiling tank 5, a plate heat exchanger 6 and a condensate water collecting box 8. The sugar outlet of the sugar dissolving tank 1 is connected to the vacuum sugar boiling tank 5 through a syrup pipeline, and the syrup pump 2 and the syrup filtering assembly are connected to the syrup pipeline, so that the syrup in the sugar dissolving tank 1 is pumped into the vacuum sugar boiling tank 5 after filtering. The top and bottom of the sugar dissolving tank 1 and the vacuum sugar boiling tank 5 are respectively provided with a juice catcher 12 and a steam drum 11, and the sugar dissolving tank 1 and the vacuum sugar boiling tank 5 are respectively provided with a heating steam pipe and a condensate water pipe connected to the steam drum 11. The steam drum 11 is used to heat the syrup in the tank body, and specifically, the heating steam releases heat outside the heating pipe of the steam drum 11 and condenses into water and is discharged, and the released heat is used to heat the sugar liquid in the pipe. A water vapor pipe is provided on the top of the vacuum sugar boiling tank 5, and the water vapor pipe is connected to the plate heat exchanger 6, so that the water vapor volatilized in the vacuum sugar boiling tank 5 is converted into condensed water by heat exchange in the plate heat exchanger 6. A vacuum pump 7 is provided at the condensed water pipe end of the plate heat exchanger 6, and the water outlet end of the vacuum pump 7 is connected to the water inlet of the sugar dissolving tank 1 through a water pipeline. The condensed water generated by the volatilized steam in the empty sugar boiling tank 5 after heat exchange in the plate heat exchanger 6 can be directly introduced into the sugar dissolving tank 1 for recycling. The water inlet end of the condensed water collecting box 8 is respectively connected to the condensed water pipe of the sugar dissolving tank 1, the condensed water pipe of the vacuum sugar boiling tank 5, and the water outlet end of the vacuum pump 7. The condensed water collecting box 8 is used to collect the condensed water generated by the condensation of the heating steam in the sugar dissolving tank 1 and the vacuum sugar boiling tank 5, or to collect the condensed water generated after heat exchange in the plate heat exchanger 6.

[0018] The outlet pipe of the condensate collection box 8 is connected to the water inlet of the sugar dissolving tank 1, and the outlet pipe end of the condensate collection box 8 is connected to the condensate pump 9, the condensate filter 10 and the condensate valve B3 in sequence. This structure enables the water in the condensate collection box 8 to be pumped into the sugar dissolving tank 1 for recycling after being filtered, fully recycling the condensate of the entire system and further saving energy.

[0019] There are two sugar dissolving tanks 1 which are arranged in parallel. A steam valve A1 is provided on the heating steam pipe of each sugar dissolving tank 1, a condensate valve B1 is provided on the condensate pipe of each sugar dissolving tank 1, a water inlet valve C1 is provided on the water inlet pipe of each sugar dissolving tank 1, and a sugar discharge valve D1 is provided on the sugar discharge port of the sugar dissolving tank 1. By arranging the two tanks in parallel, one can be used as a backup and the other can be switched to improve production efficiency.

[0020] The syrup filtering assembly comprises a primary filtering assembly 3 and a secondary filtering assembly 4 which are connected in series. The secondary filtering design further ensures the filtering quality of the syrup.

[0021] The primary filter assembly 3 and the secondary filter assembly 4 each include two parallel syrup filters, and the inlet end and outlet end of each syrup filter are respectively connected to a filter inlet valve E1 and a filter outlet valve F1. By setting two parallel syrup filters, the syrup filters can be switched by controlling the opening and closing of the filter inlet valve E1 and the filter outlet valve F1 on each pipeline, so as to avoid affecting the production process when one of the syrup filters 5 clears the filter screen or an abnormality occurs.

[0022] A steam valve A2 is provided on the heating steam pipe of the vacuum sugar boiling tank 5, and a condensate valve B2 is provided on the condensate pipe of the vacuum sugar boiling tank 5.

[0023] In the present application, the steam valve A1 / A2, the condensate valve B1 / B2 / B3, the water inlet valve C1 / C2, the filter inlet valve E1, and the filter outlet valve F1 may adopt electric or pneumatic valve bodies for easy remote control.

[0024] Working principle: Add white sugar and water in proportion to the sugar dissolving tank 1. The sugar dissolving water uses water filtered from tap water. The heated steam enters the steam drum 11 at the bottom of the sugar dissolving tank 1. After releasing heat outside the heating tube of the steam drum 11, it condenses into water and is discharged. The released heat is used to heat the sugar liquid in the tube. The syrup in the sugar dissolving tank 1 is filtered and impurities are removed by the primary filter component 3 and the secondary filter component 4 respectively, and then pumped into the vacuum sugar boiling tank 5. The syrup is filtered through the secondary filter to effectively filter the impurities in the syrup, thereby ensuring the quality of the syrup.

[0025] The steam drum 11 of the vacuum sugar-boiling tank 5 is passed with heating steam to provide heat energy for the vacuum sugar-boiling tank 5. The vacuum sugar-boiling tank 5 is evacuated by a vacuum tube pump to provide a vacuum state for the vacuum sugar-boiling tank 5, thereby reducing the boiling point of the steam in the vacuum sugar-boiling tank 5, making the system more energy-efficient. At the same time, due to the low sugar-boiling temperature, the reducing sugar is reduced, and the quality of the syrup is improved. The volatilized steam in the vacuum sugar-boiling tank 5 is converted into condensed water after heat exchange by the plate heat exchanger 6, which can be directly used for the sugar-dissolving water in the sugar-dissolving tank 1, or temporarily collected in the condensed water collection box 8. The condensed water generated by the condensation of the heating steam of the sugar-dissolving tank 1 and the vacuum sugar-boiling tank 5 is also collected in the condensed water collection box 8, and is filtered by the condensed water filter 10 and then pumped into the sugar-dissolving tank 1 for reuse. The utility model reduces the sugar-boiling temperature, makes the system more energy-efficient, improves the quality of the syrup, and can effectively recycle the steam of the system, further saving energy.

[0026] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An energy-saving rock sugar production and boiling system, characterized by: The invention comprises a sugar dissolving tank, a vacuum sugar boiling tank and a plate heat exchanger. The sugar outlet of the sugar dissolving tank is connected to the vacuum sugar boiling tank through a syrup pipeline. The syrup pipeline is connected to a syrup pump and a syrup filtering assembly so that the syrup in the sugar dissolving tank is pumped into the vacuum sugar boiling tank after being filtered. The top and bottom of the sugar dissolving tank and the vacuum sugar boiling tank are respectively provided with a juice catcher and a steam drum. The sugar dissolving tank and the vacuum sugar boiling tank are respectively provided with a heating steam pipe and a condensate water pipe connected to the steam drum. The top of the vacuum sugar boiling tank is provided with a steam pipe, which is connected to the plate heat exchanger so that the water vapor volatilized from the vacuum sugar boiling tank is converted into condensate water by heat exchange in the plate heat exchanger. A vacuum pump is provided at the condensate water pipe end of the plate heat exchanger, and the water outlet end of the vacuum pump is connected to the water inlet of the sugar dissolving tank through a water pipeline.

2. The energy-saving rock sugar production and boiling system according to claim 1 is characterized in that: It also includes a condensed water collection box, the water inlet of which is respectively connected to the condensed water pipe of the sugar dissolving tank, the condensed water pipe of the vacuum sugar boiling tank, and the water outlet of the vacuum pump.

3. The energy-saving rock sugar production and boiling system according to claim 2 is characterized in that: The water outlet end of the condensed water collection box is connected to the water inlet of the sugar dissolving tank, and the water outlet pipe end of the condensed water collection box is sequentially connected to a condensed water pump, a condensed water filter and a condensed water valve B3.

4. The energy-saving rock sugar production and boiling system according to claim 1 is characterized in that: There are two sugar dissolving tanks which are arranged in parallel. A steam valve A1 is provided on the heating steam pipe of each sugar dissolving tank, a condensate valve B1 is provided on the condensate pipe of each sugar dissolving tank, a water inlet valve C1 is provided on the water inlet pipe of each sugar dissolving tank, and a sugar discharge valve D1 is provided on the sugar discharge port of the sugar dissolving tank.

5. The energy-saving rock sugar production and boiling system according to claim 1 is characterized in that: The syrup filtering component comprises a primary filtering component and a secondary filtering component which are connected in series in sequence.

6. The energy-saving rock sugar production and boiling system according to claim 5 is characterized in that: The primary filter assembly and the secondary filter assembly each include two syrup filters connected in parallel, and the inlet end and the outlet end of each syrup filter are respectively connected to a filter inlet valve E1 and a filter outlet valve F1.

7. The energy-saving rock sugar production and boiling system according to claim 1 is characterized in that: A steam valve A2 is provided on the heating steam pipe of the vacuum sugar boiling pot, and a condensate valve B2 is provided on the condensate pipe of the vacuum sugar boiling pot.

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