Accurate heating integrated system for large edible oil storage tank

Abstract

The utility model relates to an accurate heating integrated system for a large edible oil storage tank, which comprises a tank body, a seal head and internal components, a throttle plate is arranged in the tank body, distance holes and heat exchange tube passing holes are arranged on the throttle plate, a heat exchange tube group matrix is arranged between the throttle plate and the seal head, and the matrix consists of a plurality of groups of heat exchange tubes which are arranged transversely and longitudinally. A steam inlet and a steam outlet of each heat exchange pipe group are arranged on a sealing head, operation is convenient, the tank body is further provided with a steam supply oil path, a condensate water discharge oil path and a circulating oil path, each pipeline is provided with a control valve, and a multipoint thermometer is installed in the tank and interlocked with a valve and a stirring pump, so that accurate heating is achieved. The system changes the design of a traditional coil pipe and a tubular heater, improves the heat efficiency and is convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of grain and oil storage, and in particular to a precision heating integrated system for large edible oil storage tanks. Background Art

[0002] There are two types of existing heaters for large edible oil storage tanks in the industry, mainly coil and tube heaters;

[0003] Main advantages and disadvantages analysis:

[0004] 1. The main disadvantages in material application: the pipe is heavy, the wall is thick, the steam flow is large, and the heat exchange efficiency is low;

[0005] 2. Simple heater technology and structure: coil and tube design, large diameter, small heat exchange area, easy stagnation in the steam circuit, poor heat exchange effect, long heating time, and waste of steam;

[0006] 3. Overall tank array layout problem: mainly plane layout on the tank floor area, without three-dimensional heat transfer effect;

[0007] 4. Single heating method: static heating in the tank without stirring flow, the surface of the heating equipment is rough and easy to scale, affecting the heating quality of the oil; there is no interlocking and precise control of the oil temperature control, steam flow control and stirring time effect.

[0008] Therefore, there is an urgent need to improve edible oil storage tanks to meet the demand for grain and oil reserves. Utility Model Content

[0009] The technical problem to be solved by the utility model is to provide a precise heating integrated system for large edible oil storage tanks with a three-dimensional heat transfer mode, good heat exchange effect and high thermal efficiency in view of the deficiencies in the prior art.

[0010] The technical problem to be solved by the utility model is achieved through the following technical solutions: a large-scale edible oil storage tank precision heating integrated system, including a tank body and a head, the head is fixed to the end of the tank body and forms an integrated structure;

[0011] A plurality of throttle plates are arranged at intervals in the tank body, and a plurality of fixed-distance holes and heat exchange tube passage holes are fixedly provided on the throttle plates;

[0012] A heat exchange tube group matrix is ​​arranged between the throttle plate and the head in the tank body. The heat exchange tube group matrix has a steam inlet and a condensed water outlet. The heat exchange tube group matrix is ​​composed of a plurality of heat exchange tube groups arranged at intervals in the horizontal and vertical directions, so as to form a heat exchange tube group matrix in the tank body. The heat exchange tube group is composed of a plurality of steam heat exchange tubes connected in series and passing through the heat exchange tube through holes. The steam inlet and steam outlet of each group of the heat exchange tube groups are arranged on the head.

[0013] A steam supply pipeline connected to the steam inlet of the heat exchange tube group matrix on the head is arranged on the tank body, and a steam control valve is arranged on the steam supply pipeline;

[0014] A condensate discharge pipeline connected to the condensate discharge port of the heat exchange tube group matrix on the head is arranged on the tank body, and a condensate control valve is arranged on the condensate discharge pipeline;

[0015] Circulating oil inlets and outlets are arranged at intervals on the tank body, a circulating oil circuit is connected to the circulating oil inlets and outlets, and a circulating oil control valve and a stirring pump are installed on the circulating oil circuit;

[0016] A multi-point thermometer is arranged in the tank body, and the multi-point thermometer is interlocked with the steam control valve, the condensate control valve, the circulating oil control valve and the stirring pump respectively.

[0017] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned large-scale edible oil storage tank precision heating integrated system, there are multiple horizontally spaced fixed-distance holes on the throttle plate.

[0018] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. In the above-mentioned large-scale edible oil storage tank precision heating integrated system, the steam heat exchange tube through holes on the throttle plate are arranged with 8 to 16 holes at horizontal and vertical intervals.

[0019] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned large-scale edible oil storage tank precision heating integrated system, the steam heat exchange tube is perpendicular to the throttle plate.

[0020] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. The above-mentioned large-scale edible oil storage tank precision heating integrated system also includes a PLC controller, and the multi-point thermometer, steam control valve, condensate control valve, circulating oil control valve and stirring pump are all electrically connected to the PLC controller.

[0021] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned large-scale edible oil storage tank precision heating integrated system, the steam heat exchange tube is a turbulent special-shaped tube.

[0022] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: the above-mentioned large-scale edible oil storage tank precision heating integrated system is provided with a manhole on the top of the tank body.

[0023] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. In the above-mentioned large-scale edible oil storage tank precision heating integrated system, a radar is arranged on the middle inner wall of the tank body.

[0024] Compared with the prior art, the beneficial technical effects of the utility model are:

[0025] (1) The large-scale edible oil storage tank precision heating integrated system adopts a heat exchange tube group matrix for heat exchange, and the heat exchange tube group matrix is ​​composed of a number of heat exchange tube groups arranged at intervals in the horizontal and vertical directions, and presents a multi-level staggered distribution in the tank body, so that the steam enters from the top and exits from the bottom for three-dimensional heat exchange, and the heat exchange efficiency is higher. In addition, the steam inlet and steam outlet of each heat exchange tube group are arranged on the head, which has strong operability, and has changed the design concept of the previous coil or tube-in-tube heater, with higher thermal efficiency, and changed the method of the traditional tank bottom plane layout of the coil and tube-in-tube heater;

[0026] (2) A multi-point thermometer is configured in the tank body and is interlocked with the steam control valve, condensate control valve, circulating oil control valve and stirring pump. The temperature of the oil in the tank is collected based on the multi-point thermometer. Combined with the actual temperature requirements of the oil in the tank, the steam inlet flow, condensate outlet and opening time of the circulating oil control valve are interlocked and controlled. The PLC controller can also perform logical control of the sequence, changing the operation mode of the traditional manually controlled steam valve. The overall heating amount and the final heating temperature are precisely controlled, and the oil in the large tank is heated and shipped on demand in layers, ultimately achieving the goal of saving a lot of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the principle of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the head of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the steam heat exchange tube and throttle plate of the utility model.

[0030] In the figure, 1. tank body; 2. head; 3. throttle plate; 4. fixed-distance hole; 5. steam heat exchange tube through hole; 6. heat exchange tube group; 7. steam supply pipeline; 8. steam control valve; 9. condensate discharge pipeline; 10. condensate control valve; 11. PLC controller; 12. multi-point thermometer; 13. circulating oil circuit; 14. circulating oil control valve; 15. stirring pump; 16. manhole; 17. radar. DETAILED DESCRIPTION

[0031] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0032] Example 1, reference Figure 1-3, a precision heating integrated system for a large edible oil storage tank, comprising a tank body 1 and a head 2, the head 2 being fixed to the end of the tank body 1 and forming an integrated structure, and the storage tank is installed horizontally for use;

[0033] Several throttle plates 3 are arranged at intervals in the tank body 1. The throttle plates 3 are formed into a roughly square plate structure. The size can be customized according to the size of the tank body 1, such as 1080mm*810mm, but not limited thereto. Several fixed-distance holes and heat exchange tube passing holes are fixedly provided on the throttle plates 3.

[0034] There are multiple spacing holes 4 on the throttle plate 3 arranged horizontally at intervals, and the number can be set according to the use requirements and is not limited to two;

[0035] The steam heat exchange tube passing holes 5 on the throttle plate 3 are arranged with 8 to 16 holes in the horizontal and vertical intervals, and the number is set according to the number of heat exchange tube groups;

[0036] A heat exchange tube group matrix is ​​arranged between the throttle plate 3 and the head 2 in the tank body 1. The heat exchange tube group matrix has a steam inlet and a condensate outlet. The steam inlet is used to introduce steam, and the condensate outlet is used to discharge condensate. The heat exchange tube group matrix is ​​composed of a plurality of groups of heat exchange tube groups 6 arranged at intervals in the horizontal and vertical directions, so as to form a heat exchange tube group matrix in the tank body 1. The heat exchange tube group 6 is composed of a plurality of steam heat exchange tubes connected in series and passing through the heat exchange tube through holes. The steam heat exchange tube is a S30408 ​​stainless steel YF series turbulent special-shaped tube, and its size and model can be customized according to the use requirements. The steam heat exchange tube is perpendicular to the throttle plate 3, and the steam inlet and steam outlet of each group of the heat exchange tube group 6 are arranged on the head 2;

[0037] It should be noted that by arranging the matrix heat exchange tube group 6 in the tank body 1, under the premise of the same investment cost, the heat exchange area is increased, the heating efficiency is improved, the waste of energy is avoided, and the purpose of saving steam is achieved;

[0038] The tank body 1 is provided with a steam supply pipeline 7 connected to the steam inlet of the heat exchange tube group matrix on the head 2, and a steam control valve 8 is provided on the steam supply pipeline 7, and the steam control valve 8 controls the on-off of the steam pipeline;

[0039] The tank body 1 is provided with a condensate discharge pipe 9 connected to the condensate discharge port of the heat exchange tube group matrix on the head 2, and the condensate discharge pipe 9 is provided with a condensate control valve 10, and the discharge of condensate is controlled by the condensate control valve 10. The tank body 1 also includes a plc controller 11, and the multi-point thermometer 12, the steam control valve 8, the condensate control valve 10, the circulating oil control valve and the stirring pump are all electrically connected to the plc controller 11;

[0040] Circulating oil inlet and outlet ports are arranged at intervals on the tank body 1, and a circulating oil circuit 13 is connected to the circulating oil inlet and outlet ports. A circulating oil control valve 14 and a stirring pump 15 (not shown in the figure) are installed on the circulating oil circuit 13. According to the use requirements, a self-spinning ejector (not shown in the figure) can also be installed on the circulating oil circuit 13, and the self-spinning ejector can eject the grain and oil from the inlet end of the circulating oil circuit 13 into the storage tank at the other end of the circulating oil circuit 13, so as to enhance the heat exchange of the grain and oil in the storage tank and improve the heat exchange effect of the grain and oil in the storage tank. A jet mixer (CTE device not shown in the figure) driven by the stirring pump 15 can also be added to the tank body 1 for auxiliary stirring, so as to improve the heat exchange effect;

[0041] In order to facilitate the maintenance of the tank body 1, a manhole 16 is provided on the top of the tank body 1;

[0042] A radar 17 is provided on the inner wall of the middle part of the tank body 1, so as to facilitate the positioning of the tank body 1;

[0043] In order to interlock the steam flow, stirring time and oil temperature in the tank body 1, realize the stratified heating and delivery of the oil in the large tank on demand, realize the precise control of the overall heating amount and the final heating temperature, avoid the waste of steam and solve the problem of automatic operation of oil storage, we set a multi-point thermometer 12 in the tank body 1, and the multi-point thermometer 12 is interlocked with the steam control valve 8, the condensate control valve 10, the circulating oil control valve 14 and the stirring pump 15 respectively;

[0044] The steam control valve 8 can be opened and closed according to the temperature of the condensed water, so as to control the steam flow and avoid steam waste. The stirring pump 15 can be opened and closed according to the temperature difference measured by the multi-point thermometer 12, or delayed opening and closing. The circulating oil control valve 14 is also interlocked with the stirring pump 15. When the stirring pump 15 is turned on, the circulating oil control valve 14 is also turned on. The PLC controller 11 can perform logical control of the sequence, changing the operation mode of the traditional manual control steam valve, achieving precise control of the overall heating amount and the final heating temperature, and realizing the stratified heating and shipment of oil products in the large tank on demand, and ultimately achieving the purpose of saving a lot of energy;

[0045] In addition, due to the large temperature difference between winter and summer, the specific temperature chain standard value can be set according to usage requirements, so the specific temperature value range for chaining will not be described here.

Claims

1. An integrated system for precise heating of large edible oil storage tanks, characterized by: It includes a tank body and a sealing head, wherein the sealing head is fixed to the end of the tank body and forms an integrated structure; A plurality of throttle plates are arranged at intervals in the tank body, and a plurality of fixed-distance holes and heat exchange tube passage holes are fixedly provided on the throttle plates; A heat exchange tube group matrix is ​​arranged between the throttle plate and the head in the tank body. The heat exchange tube group matrix has a steam inlet and a condensed water outlet. The heat exchange tube group matrix is ​​composed of a plurality of heat exchange tube groups arranged at intervals in the horizontal and vertical directions, so as to form a heat exchange tube group matrix in the tank body. The heat exchange tube group is composed of a plurality of steam heat exchange tubes connected in series and passing through the heat exchange tube through holes. The steam inlet and steam outlet of each group of the heat exchange tube groups are arranged on the head. A steam supply pipeline connected to the steam inlet of the heat exchange tube group matrix on the head is arranged on the tank body, and a steam control valve is arranged on the steam supply pipeline; A condensate discharge pipeline connected to the condensate discharge port of the heat exchange tube group matrix on the head is arranged on the tank body, and a condensate control valve is arranged on the condensate discharge pipeline; Circulating oil inlets and outlets are arranged at intervals on the tank body, a circulating oil circuit is connected to the circulating oil inlets and outlets, and a circulating oil control valve and a stirring pump are installed on the circulating oil circuit; A multi-point thermometer is arranged in the tank body, and the multi-point thermometer is interlocked with the steam control valve, the condensate control valve, the circulating oil control valve and the stirring pump respectively.

2. According to claim 1, a large-scale edible oil storage tank precision heating integrated system is characterized by: A plurality of spacing holes are arranged on the throttle plate at horizontal intervals.

3. According to claim 1, a large-scale edible oil storage tank precision heating integrated system is characterized by: The steam heat exchange tube passing holes on the throttle plate are arranged with 8 to 16 holes spaced horizontally and vertically.

4. According to claim 1, a large-scale edible oil storage tank precision heating integrated system is characterized by: The steam heat exchange tube is perpendicular to the throttle plate.

5. According to claim 1, a large-scale edible oil storage tank precision heating integrated system is characterized by: It also includes a plc controller, and the multi-point thermometer, steam control valve, condensate control valve, circulating oil control valve and stirring pump are all electrically connected to the plc controller.

6. The large-scale edible oil storage tank precision heating integrated system according to claim 1 is characterized by: The steam heat exchange tube is a turbulent profile tube.

7. The large-scale edible oil storage tank precision heating integrated system according to claim 1 is characterized by: A manhole is provided on the top of the tank body.

8. The large-scale edible oil storage tank precision heating integrated system according to claim 1 is characterized by: A radar is arranged on the middle inner wall of the tank.

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