Novel heat-conducting oil furnace system

Abstract

The utility model provides a novel heat-conducting oil furnace system which comprises a heat-conducting oil furnace system A, a heat-conducting oil furnace system B, an aggregate preheating system C, a dry material preheating machine and a control module, and the heat-conducting oil furnace system A, the heat-conducting oil furnace system B and the dry material preheating machine form a first circulating system; and the heat-conducting oil furnace system A, the heat-conducting oil furnace system B and the aggregate preheating system C form a second circulating system. According to the novel heat conduction oil furnace system, a dual utilization path of heat energy is achieved by constructing the first circulation system and the second circulation system, different systems can be adjusted according to different heat energy requirements, and the heat conduction oil furnace system A, the heat conduction oil furnace system B and the aggregate preheating system C supply energy independently or in a combined mode. A waste heat recovery system of a carbon production enterprise is affected by market periods and seasons, energy supply in winter is insufficient, and energy supply in summer is excessive.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a novel heat-conducting oil furnace system. Background Art

[0002] A heat-conducting oil furnace directly inserts an electric heater into an organic carrier (heat-conducting oil) for direct heating, and uses a circulation pump to force the heat-conducting oil to perform liquid-phase circulation, transferring heat to one or more heat-using devices. After the heat-using devices unload the heat, the heat-conducting oil returns to the heater through the circulation pump again, absorbs heat, and transfers it to the heat-using devices. In this way, the continuous transfer of heat is achieved, the temperature of the heated object is increased, and the heating process requirements are met.

[0003] However, traditional carbon production enterprises usually ignite the tail gas generated in the original system and discharge it into the air. This treatment method inevitably causes the energy consumption of igniting the tail gas and the loss of high temperature in the original tail gas. At the same time, affected by the market cycle and seasons, when the orders of carbon production enterprises decrease in winter, the waste heat recovery system has insufficient waste heat supply, while in summer, the waste heat supply is excessive, and additional heat dissipation equipment is required to cool down the system. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that the waste heat recovery system of carbon production enterprises is affected by the market cycle and seasons, with insufficient energy supply in winter and excessive energy supply in summer.

[0005] To achieve the above purpose, the present application proposes a novel heat-conducting oil furnace system, including: heat-conducting oil furnace system A, heat-conducting oil furnace system B, aggregate preheating system C, dry material preheater and control module, wherein:

[0006] The heat-conducting oil furnace system A, heat-conducting oil furnace system B and dry material preheater form a first circulation system;

[0007] The heat-conducting oil furnace system A, heat-conducting oil furnace system B and aggregate preheating system C form a second circulation system.

[0008] The system of the present application integrates the heat-conducting oil furnace system A and the heat-conducting oil furnace system B as the main heat generation units, and realizes a dual utilization path of heat energy by constructing the first circulation system and the second circulation system. It can adjust different systems for energy supply according to different heat energy requirements. Specifically: the heat-conducting oil furnace system A, the heat-conducting oil furnace system B and the aggregate preheating system C supply energy alone or in combination, solving the problem in the prior art that the waste heat recovery system of carbon production enterprises is affected by the market cycle and seasons, with insufficient energy supply in winter and excessive energy supply in summer.

[0009] As an improvement to the above control module of the present application, in order to achieve precise control and rapid switching of the flow direction of the heat transfer oil, and at the same time meet the needs during maintenance, the control module includes: a first gate valve, a plug valve, and a second gate valve arranged in sequence according to the heat transfer oil transportation direction, wherein a third gate valve is further arranged between the plug valve and the second gate valve.

[0010] Further, in order to increase the safety during the maintenance of the automatic valve, an 8-shaped blind plate is arranged between the second gate valve and the three-way valve.

[0011] Further, in order to increase the circulation nodes of the heat transfer oil between the first circulation system and the second circulation system, a node A is arranged between the output ends of the heat transfer oil furnace system A and the heat transfer oil furnace system B and the input end of the dry material preheating machine, and the input end of the second circulation system is connected in parallel at the node A; a node B is arranged between the input ends of the heat transfer oil furnace system A and the heat transfer oil furnace system B and the output end of the dry material preheating machine, and the output end of the second circulation system is connected in parallel at the node B.

[0012] Further, in order to achieve precise control and rapid switching of the flow direction of the heat transfer oil in the first circulation system, a control module is arranged between the output ends of the heat transfer oil furnace system A and the heat transfer oil furnace system B and the node A, and a control module is arranged between the input ends of the heat transfer oil furnace system A and the heat transfer oil furnace system B and the node B.

[0013] Further, in order to achieve precise control and rapid switching of the flow direction of the heat transfer oil in the second circulation system, a control module is arranged between the node A and the input end of the aggregate preheating system C, and a control module is arranged between the node B and the output end of the aggregate preheating system C.

[0014] Further, in order to effectively reduce the loss of heat energy during the transmission of the heat transfer oil, a heat insulation layer is arranged between the node A and the input end of the dry material preheating machine; a heat insulation layer is arranged between the node B and the output end of the dry material preheating machine.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The novel heat transfer oil furnace system of the present application realizes a dual utilization path of heat energy by constructing a first circulation system and a second circulation system, and can adjust different systems according to different heat energy requirements: the heat transfer oil furnace system A, the heat transfer oil furnace system B, and the aggregate preheating system C supply energy alone or in combination, solving the problems in the prior art that the waste heat recovery system of carbon production enterprises is affected by the market cycle and seasons, with insufficient energy supply in winter and excessive energy supply in summer.

[0017] 2. In the novel heat-conducting oil furnace system of the present application, by setting up control modules in the first circulation system and the second circulation system, precise control and rapid switching of the flow direction and flow rate of the heat-conducting oil in the two systems can be achieved.

[0018] 3. Nodes A and B are set up in the first circulation system and the second circulation system of the present application, making the first circulation system and the second circulation system in parallel, so that the heat-conducting oil in the two systems can be adjusted according to the actual usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of a novel heat-conducting oil furnace system in an embodiment of the present application;

[0021] Description of the reference numerals in the drawings:

[0022] 1. Heat-conducting oil furnace system A;

[0023] 2. Heat-conducting oil furnace system B;

[0024] 3. Aggregate preheating system C;

[0025] 4. Dry material preheating machine;

[0026] 5. Control module; 51. First gate valve; 52. Cock valve; 53. Second gate valve; 54. Third gate valve; 55. Figure-eight blind flange;

[0027] 6. First circulation system;

[0028] 7. Second circulation system;

[0029] 8. Node A;

[0030] 9. Node B;

[0031] 10. Heat-insulating layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will describe in detail the embodiments of the technical solutions of the present application in combination with the attached Figure 1 The following embodiments are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] As shown in Figure 1 Figure 1 schematically shows a new type of heat-conducting oil furnace system of the present application, including: a heat-conducting oil furnace system A1, a heat-conducting oil furnace system B2, an aggregate preheating system C3, a dry material preheater 4, and a control module 5, where:

[0034] The heat-conducting oil furnace system A1, the heat-conducting oil furnace system B2, and the dry material preheater 4 form a first circulation system 6;

[0035] The heat-conducting oil furnace system A1, the heat-conducting oil furnace system B2, and the aggregate preheating system C3 form a second circulation system 7.

[0036] In an embodiment of the present application, the heat-conducting oil furnace system A1 and the heat-conducting oil furnace system B2 are respectively used as independent heat source units. The two are connected to other parts of the system through pipes in a parallel manner for energy supply. The aggregate preheating system C3 is used as a waste heat recovery heat source unit for daily use to supply energy for the daily use of the aggregate preheater, and is used as a reserve heat source when the energy supply demand is large, and timely supplements the heat energy gap lacking when the heat sources generated by the heat-conducting oil furnace system A1 and the heat-conducting oil furnace system B2 do not meet the use requirements.

[0037] In the prior art, traditional carbon production enterprises usually burn the tail gas generated in the original system and discharge it into the air. This treatment method inevitably causes the energy consumption of burning the tail gas and the loss of high temperature in the original tail gas. At the same time, affected by the market cycle and seasons, the waste heat recovery system of carbon production enterprises has insufficient waste heat supply when the orders decrease in winter, and has excessive waste heat supply in summer, and additional heat dissipation equipment is required to cool the system.

[0038] In this embodiment, the heat-conducting oil furnace system A1 and the heat-conducting oil furnace system B2 are set in the same unit. The compositions of the two systems are the same and they are backup for each other. The dual-loop oil supply is realized through the control module 5. At the same time, in the pipelines connecting the heat-conducting oil furnace system A1 and the heat-conducting oil furnace system B2 to the energy-consuming equipment, an aggregate preheating system C3 is further connected in parallel to introduce the heat energy in the original system into the heat-conducting oil furnace system A1 and the heat-conducting oil furnace system B2, realizing the adjustment relationship of the three working alone or in combination to meet the use requirements of large energy supply demand in winter and small energy supply demand in summer, and solving the problem that in the prior art, the waste heat recovery system of carbon production enterprises is affected by the market cycle and seasons, with insufficient energy supply in winter and excessive energy supply in summer.

[0039] Continuing to refer to Figure 1 , in a further embodiment, the control module 5 includes: a first gate valve 51, a cock valve 52, and a second gate valve 53 arranged in sequence according to the heat-conducting oil transmission direction. Among them, a third gate valve 54 is also arranged between the cock valve 52 and the second gate valve 53.

[0040] Specifically, the first gate valve 51 serves as the inlet valve of the control module 5 and is responsible for initially controlling the entry of the heat transfer oil. When the system needs to start or adjust the heat transfer oil flow rate, by operating the first gate valve 51, the heat transfer oil flow rate entering the module can be quickly and effectively adjusted. This valve is designed with a seat and a disc with excellent sealing performance to ensure no leakage in the closed state.

[0041] Further, the plug valve 52 is installed after the first gate valve 51. The plug valve 52 realizes flexible adjustment of the flow direction of the heat transfer oil through its internal rotary design. By rotating the valve core, the plug valve 52 can switch between fully open, fully closed, or partially open states to meet the precise control requirements of the heat transfer oil flow rate under different working conditions.

[0042] Further, a third gate valve 54 added between the plug valve 52 and the second gate valve 53 provides an additional safety barrier for the system: when it is necessary to quickly cut off the heat transfer oil flow or perform maintenance operations, the third gate valve 54 can be quickly closed to effectively isolate the plug valve 52 from the subsequent pipeline, ensuring the safety of the operation. The third gate valve 54 increases the system's ability to respond to emergencies and improves the overall operational reliability.

[0043] Further, the second gate valve 53 serves as the outlet valve of the control module 5 and is responsible for controlling the heat transfer oil flowing out of the module and entering the subsequent process. The structure of the second gate valve 53 is similar to that of the first gate valve 51 and also has excellent sealing performance and adjustment functions. By precisely controlling the opening degree of the second gate valve 53, the outflow speed of the heat transfer oil can be finely adjusted to ensure the efficient and stable operation of the entire system.

[0044] Continue to refer to Figure 1 , in a further embodiment, an 8-shaped blind plate 55 is provided between the second gate valve 53 and the three-way valve 54.

[0045] Further, when overhauling the plug valve 52, after switching the heat transfer oil supply to another electric heating system, close the first gate valve 51 and the second gate valve 53, then open the third gate valve 54 to drain the oil. After installing the blind plate 5 in the closed state, remove the plug valve 52 for overhaul.

[0046] Continue to refer to Figure 1, in a further embodiment, a node A8 is provided between the output ends of the heat transfer oil furnace systems A1 and B2 and the input end of the dry material preheater 4, and the input end of the second circulation system 7 is connected in parallel at the node A8; a node B9 is provided between the input ends of the heat transfer oil furnace systems A1 and B2 and the output end of the dry material preheater 4, and the output end of the second circulation system 7 is connected in parallel at the node B9. Specifically, by providing the node A8 and the node B9, the aggregate preheating system C3 is connected in parallel to the first circulation system 1 to form the second circulation system 2, so that there is a circulation of heat transfer oil between the two systems, and the compensation effect of the heat transfer oil in the two systems is completed.

[0047] Continue to refer to Figure 1 , in a further embodiment, a control module 5 is provided between the output ends of the heat transfer oil furnace systems A1 and B2 and the node A8, and a control module 5 is provided between the input ends of the heat transfer oil furnace systems A1 and B2 and the node B9. By adding the control module 5 between the key nodes and components in the first circulation system, the control of the flow direction and flow rate of the heat transfer oil in the system is realized.

[0048] Continue to refer to Figure 1 , in a further embodiment, a control module 5 is provided between the node A8 and the input end of the aggregate preheating system C3, and a control module 5 is provided between the node B9 and the output end of the aggregate preheating system C3. By adding the control module 5 between the key nodes and components in the second circulation system, the control of the flow direction and flow rate of the heat transfer oil in the system is realized.

[0049] Continue to refer to Figure 1 , in a further embodiment, a heat insulation layer 10 is provided between the node A and the input end of the dry material preheater 4; a heat insulation layer 10 is provided between the node B and the output end of the dry material preheater 4. This design adds the heat insulation layer 10 near the pipeline close to the dry material preheater 4 to ensure that the temperature of the heat transfer oil entering and leaving the dry material preheater 4 remains stable.

[0050] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application 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 to the embodiments of the present application.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "arrangement", "provided with", "connection", "installation" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of heat transfer oil furnace system, characterized in that, Including: A heat transfer oil furnace system A (1), a heat transfer oil furnace system B (2), an aggregate preheating system C (3), a dry material preheating machine (4), and a control module (5), where: The heat transfer oil furnace system A (1), the heat transfer oil furnace system B (2), and the dry material preheating machine (4) form a first circulation system (6); The heat transfer oil furnace system A (1), the heat transfer oil furnace system B (2), and the aggregate preheating system C (3) form a second circulation system (7).

2. The novel heat transfer oil furnace system according to claim 1, wherein, The control module (5) includes: a first gate valve (51), a cock valve (52), and a second gate valve (53) arranged in sequence according to the heat transfer oil conveying direction. Among them, a third gate valve (54) is also arranged between the cock valve (52) and the second gate valve (53).

3. The novel heat transfer oil furnace system according to claim 1, wherein An 8-shaped blind plate (55) is arranged between the second gate valve (53) and the third gate valve (54).

4. The novel heat transfer oil furnace system according to claim 1, wherein A node A (8) is arranged between the output ends of the heat transfer oil furnace system A (1) and the heat transfer oil furnace system B (2) and the input end of the dry material preheating machine (4), and the input end of the second circulation system (7) is connected in parallel at the node A (8); a node B (9) is arranged between the input ends of the heat transfer oil furnace system A (1) and the heat transfer oil furnace system B (2) and the output end of the dry material preheating machine (4), and the output end of the second circulation system (7) is connected in parallel at the node B (9).

5. The novel heat transfer oil furnace system according to claim 1, characterized in that A control module (5) is arranged between the output ends of the heat transfer oil furnace system A (1) and the heat transfer oil furnace system B (2) and the node A (8), and a control module (5) is arranged between the input ends of the heat transfer oil furnace system A (1) and the heat transfer oil furnace system B (2) and the node B (9).

6. The novel heat transfer oil furnace system according to claim 1, wherein A control module (5) is arranged between the node A (8) and the input end of the aggregate preheating system C (3), and a control module (5) is arranged between the node B (9) and the output end of the aggregate preheating system C (3).

7. The novel heat transfer oil furnace system according to claim 1, wherein A heat preservation layer (10) is arranged between the node A and the input end of the dry material preheating machine (4); a heat preservation layer (10) is arranged between the node B (9) and the output end of the dry material preheating machine (4).

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