Conduction oil heating device
By adopting a spiral coil structure with upper inlet and lower out in the thermal oil heating device, combined with the burner, radiation area and convection area, the problems of thermal oil blockage and heat conduction effects in the thermal oil heating device are solved, and the problem of thermal oil blockage and heat conduction effect is achieved. Low resistance flow and efficient heat exchange improve furnace efficiency and burner stability.
Patent Information
- Application Number
- CN202420752031.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The existing thermal oil heating devices are likely to cause blockage of the thermal pipeline during long-term use, affecting the heat conduction effect, especially when the pump body pressure is insufficient, the thermal oil flows difficult.
Using a spiral coil structure with upper inlet and lower outlet and an external spiral coil, the gravity discharge of the thermal oil is achieved through the connected first oil port, and the flow resistance of the thermal oil is reduced through the parallel connection, combining the burner and radiation area and convection. The zone improves heat exchange efficiency and uses conical coils and thermal insulation layers to reduce furnace top temperature and flue gas resistance.
It effectively reduces the probability of thermal oil blockage, improves the heat conduction effect, shortens the residence time of combustible gases in the furnace, improves the efficiency of the furnace body, and ensures the stable operation of the burner and the fire resistance of the furnace top.
Smart Images
Figure CN222143365U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat transfer oil, in particular to a heat transfer oil heating device. Background Art
[0002] Thermal oil is a high-temperature liquid heat conduction medium, usually composed of organic compounds or mineral oil. Its main function is to transfer heat in mechanical systems or industrial equipment.
[0003] Thermal oil can be used to heat or cool equipment through heat conduction. The existing Chinese patent with authorization announcement number CN215176021U discloses a thermal oil heating device. It includes multiple motors and a stirring structure. The stirring structure is driven by the motor to rotate, so that the thermal oil can be heated evenly and the heating rate of the thermal oil can be improved. The filter screen can effectively prevent carbon deposits from clogging the heat pipe.
[0004] In an oil-fired boiler, the flame in the combustion chamber is used to heat the coil in the boiler. A circulating pump and pipeline are used to transfer the heated heat transfer oil from the boiler to the equipment that needs to be heated, and the cooled heat transfer oil is returned to the boiler for further heating. However, in the long-term use of existing heat transfer oil heating devices, carbon deposits in the heat transfer oil are serious, which may cause blockage of the heat transfer pipeline. When the pump pressure is insufficient, the flow is more difficult, which can easily affect the heat conduction effect. Utility Model Content
[0005] In view of the problem that the existing thermal oil heating device will cause serious carbon deposition in the thermal oil during long-term use, which will cause the heat transfer pipeline to be blocked. When the pump pressure is insufficient, the flow is difficult and the heat conduction effect is easily affected, the utility model is proposed.
[0006] Therefore, the purpose of the utility model is to provide a thermal oil heating device, the purpose of which is to: the thermal oil in the spiral coil and the outer spiral coil can be drained by gravity through the connected first oil port, thereby reducing the probability of blockage caused by long-term use of the thermal oil.
[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a heat transfer oil heating device, which includes a support and a furnace body, the furnace body is fixedly installed on the top of the support, and a control component is arranged in the furnace body, the control component includes a heat exchange component, the heat exchange component includes an inner spiral coil, the inner side of the inner spiral coil is arranged on the inner side of the furnace body, the inner side of the inner spiral coil is also provided with an outer spiral coil, and the inner spiral coil is connected to the outer spiral coil through a parallel connector, the support is distributed in a ring-shaped parallel arrangement around the furnace body, the interior of the furnace body is hollow, and the inner spiral coil and the outer spiral coil together constitute a vertical bottom-burning cylindrical spiral coil structure, and a parallel structure is adopted through a parallel connector to ensure that the heat transfer oil resistance drop of the furnace body is less than 0.2Mpa (the calculated value is only 0.18Mpa when the design flow rate is 200m3 / h), thereby reducing the resistance to the circulation of the heat transfer oil.
[0008] As a preferred solution of the thermal oil heating device described in the utility model, wherein: the support heat exchange assembly also includes a burner, the burner is fixedly installed at the bottom of the furnace body, a radiation zone is arranged on the top of the burner and on the inner side of the inner spiral coil, a convection zone is arranged between the outer spiral coil and the furnace body, the flame zone sprayed by the burner contacts the thermal oil return furnace pipe in the inner spiral coil, thereby reducing the basic temperature of the film temperature to achieve the maximum film temperature reduction, the radiation zone can cooperate with the convection zone to make the flue gas in the furnace body go through two return trips, thereby reducing the resistance of the flue gas in the furnace.
[0009] As a preferred solution of the thermal oil heating device of the utility model, the control component also includes a first oil port and a second oil port, the first oil port is arranged at one end of the furnace body close to the burner, and the second oil port is located at the top of the first oil port, the first oil port and the second oil port are both connected to the inner spiral coil and the second oil port, and when in use, the flow direction of the thermal oil is from bottom to top, and when not in use, the thermal oil is completely discharged from the first oil port by gravity.
[0010] As a preferred solution of the thermal oil heating device described in the utility model, wherein: the control component also includes a cooling component, the cooling component includes a conical coil, the conical coil is arranged on the top of the inner spiral coil and the outer spiral coil, and the conical coil is an integrally formed structure with the inner spiral coil and the outer spiral coil, a furnace top piece is provided on the top of the conical coil, and the conical coil can reduce the height of the furnace top piece connected to the furnace body, thereby reducing the temperature of the burner.
[0011] As a preferred solution of the thermal oil heating device described in the utility model, a heat insulating layer is arranged between the conical coil and the furnace body, and a refractory casting layer is arranged on the outside of the conical coil and at the bottom of the furnace top part. The heat insulating layer can cooperate with the conical coil so that the refractory casting layer at the bottom of the furnace top part will not collapse under high temperature conditions.
[0012] As a preferred solution of the thermal oil heating device described in the utility model, wherein: a smoke outlet is provided on the outer side of the furnace body, and the smoke outlet is communicated with the convection zone, the smoke in the furnace body can be connected to the smoke treatment equipment through the smoke outlet, and reverse heat exchange can be achieved with the thermal oil in the inner spiral coil and the outer spiral coil in the furnace body.
[0013] Beneficial effects of the utility model:
[0014] 1. When the pressure of the pump body connected to the first oil port is insufficient, the heat transfer oil can also flow smoothly in the inner spiral coil and the burner, and the heat transfer oil in the inner spiral coil and the outer spiral coil can be drained by gravity through the connected first oil port during maintenance, thereby reducing the probability of blockage of the heat transfer oil due to long-term use and affecting the heat conduction effect.
[0015] 2. Through the first oil port and the bottom-in and high-out of the heat transfer oil, reverse heat exchange is carried out with the flue gas in the furnace body to improve the heat exchange effect. The flue gas is made to go through two round trips through the radiation area and the convection area, which reduces the resistance of the flue gas in the furnace. At the same time, the residence time of the combustible gas in the furnace is shortened in the less blowing stage, which greatly reduces the exhaust temperature of the furnace body and improves the efficiency of the furnace body.
[0016] 3. Through the conical coil, the height of the furnace top is reduced and the heat insulation layer with thermal insulation effect is combined to ensure that the refractory casting layer of the furnace top will not collapse under high temperature conditions. At the same time, the temperature of the burner is reduced to ensure the stable operation of the burner. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0018] Figure 1 The utility model is a schematic diagram of the overall structure of the thermal oil heating device.
[0019] Figure 2 The utility model is a cross-sectional structural schematic diagram of the thermal oil heating device.
[0020] Figure 3The utility model is a schematic diagram of the top view of the radiation zone of the thermal oil heating device.
[0021] Figure 4 The utility model is a thermal oil heating device Figure 2 Schematic diagram of the enlarged structure of part A.
[0022] Description of reference numerals:
[0023] 1. Support; 2. Furnace body; 3. Control component; 31. Heat exchange component; 311. Inner spiral coil; 312. Outer spiral coil; 313. Parallel connector; 314. Burner; 315. Radiation zone; 316. Convection zone; 317. First oil port; 318. Second oil port; 32. Cooling component; 321. Conical coil; 322. Thermal insulation layer; 323. Furnace top component; 324. Refractory casting layer; 4. Smoke outlet. DETAILED DESCRIPTION
[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Example
[0025] Reference Figure 1-3 , which is the first embodiment of the utility model, provides a heat transfer oil heating device, which includes a support 1 and a furnace body 2, the furnace body 2 is fixedly installed on the top of the support 1, and a control component 3 is arranged in the furnace body 2, the control component 3 includes a heat exchange component 31, and the heat exchange component 31 includes an inner spiral coil 311, the inner side of the inner spiral coil 311 is arranged on the inner side of the furnace body 2, and an outer spiral coil 312 is also arranged on the inner side of the inner spiral coil 311, and the inner spiral coil 311 is connected to the outer spiral coil 312 through a parallel connector 313.
[0026] The support 1 heat exchange component 31 also includes a burner 314, which is fixedly installed at the bottom of the furnace body 2. A radiation zone 315 is arranged at the top of the burner 314 and on the inner side of the inner spiral coil 311, and a convection zone 316 is arranged between the outer spiral coil 312 and the furnace body 2.
[0027] The control component 3 further includes a first oil port 317 and a second oil port 318 . The first oil port 317 is disposed at one end of the furnace body 2 close to the burner 314 , and the second oil port 318 is located at the top of the first oil port 317 .
[0028] During use, when in use, a flame is generated by burning through the burner 314 located at the bottom of the furnace body 2, and the main flame area where the flame exists contacts the heat transfer oil return furnace pipe in the inner spiral coil 311, thereby reducing the base temperature of the film temperature to achieve the effect of reducing the maximum film temperature, greatly improving the service life of the heat transfer oil, and setting a vertical bottom-burning cylindrical spiral coil structure composed of an inner spiral coil 311 and an outer spiral coil 312 in the furnace body 2, and parallel connection is achieved through a parallel connector 313 to ensure that the heat transfer oil resistance of the furnace body is The force drop is less than 0.2Mpa (the calculated value is only 0.18Mpa when the design flow rate is 200m3 / h). The low resistance drop means that the energy consumption of the pump is reduced, so that when the pressure of the pump body connected to the first oil port 317 is insufficient, the heat transfer oil can also flow smoothly in the inner spiral coil 311 and the burner 314, and during maintenance, the heat transfer oil in the inner spiral coil 311 and the outer spiral coil 312 can be drained by gravity through the connected first oil port 317, thereby reducing the probability of blockage of the heat transfer oil due to long-term use and affecting the heat conduction effect. Example 1
[0029] Reference Figure 1-4 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:
[0030] The control component 3 also includes a cooling component 32, which includes a conical coil 321, which is arranged on the top of the inner spiral coil 311 and the outer spiral coil 312, and the conical coil 321, the inner spiral coil 311 and the outer spiral coil 312 are an integrally formed structure.
[0031] A heat insulating layer 322 is provided between the conical coil 321 and the furnace body 2 , and a refractory casting layer 324 is provided on the outer side of the conical coil 321 and at the bottom of the furnace top member 323 .
[0032] A smoke outlet 4 is provided on the outer side of the furnace body 2 , and the smoke outlet 4 is communicated with the convection area 316 .
[0033] During use, when in use, the heat in the flue gas generated by the burner 314 first passes through the radiation zone 315 in the inner spiral coil 311, and the heat transfer oil in the inner spiral coil 311 exchanges heat in the radiation zone 315 by radiation, and then passes through the convection zone 316, and the heat transfer oil in the outer spiral coil 312 in the convection zone 316 exchanges heat by convection, and finally passes through the furnace body 2 and is discharged from the furnace body, and is sent to the connected flue gas treatment equipment. The heat transfer oil flows in the inner spiral coil 311 and the outer spiral coil 312 through the first oil ports 317 and 318 to achieve bottom entry and high exit, and performs reverse heat exchange with the flue gas in the furnace body 2, thereby improving the heat exchange effect and The flue gas passes through the radiation zone 315 and the convection zone 316 to make two round trips, thereby reducing the resistance of the flue gas in the furnace. At the same time, the residence time of the combustible gas in the furnace is shortened in the blowing less stage, which greatly reduces the exhaust temperature of the furnace body and improves the efficiency of the furnace body, ensuring that the system thermal efficiency is not less than 92.5%, thereby reducing the fuel consumption. At the same time, by setting the conical coil 321, while reducing the height of the furnace top part 323 and cooperating with the heat insulation layer 322 with a heat preservation effect, it is ensured that the refractory casting layer 324 of the furnace top will not collapse under high temperature conditions. At the same time, the temperature of the burner 314 is reduced to ensure the stable operation of the burner 314.
[0034] The remaining structures are the same as those of Example 1.
[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A thermal oil heating device, comprising a support (1) and a furnace body (2), wherein the furnace body (2) is fixedly mounted on the top of the support (1), and is characterized in that: A control component (3) is arranged in the furnace body (2), the control component (3) comprising a heat exchange component (31), the heat exchange component (31) comprising an inner spiral coil (311), the inner side of the inner spiral coil (311) being arranged on the inner side of the furnace body (2), an outer spiral coil (312) being arranged on the inner side of the inner spiral coil (311), and the inner spiral coil (311) being connected to the outer spiral coil (312) via a parallel connection piece (313), the control component (3) further comprising a first oil port (317) and a second oil port (318), the first oil port (317) being arranged at one end of the furnace body (2) close to the burner (314), and the second oil port (318) being located at the top of the first oil port (317).
2. The thermal oil heating device according to claim 1, characterized in that: The support (1) heat exchange assembly (31) further comprises a burner (314), wherein the burner (314) is fixedly mounted on the bottom of the furnace body (2), a radiation zone (315) is arranged at the top of the burner (314) and on the inner side of the inner spiral coil (311), and a convection zone (316) is arranged between the outer spiral coil (312) and the furnace body (2).
3. The thermal oil heating device according to claim 1, characterized in that: The control component (3) further comprises a cooling component (32), wherein the cooling component (32) comprises a conical coil (321), wherein the conical coil (321) is arranged on top of the inner spiral coil (311) and the outer spiral coil (312), and the conical coil (321) is an integrally formed structure with the inner spiral coil (311) and the outer spiral coil (312).
4. The thermal oil heating device according to claim 3, characterized in that: A heat insulating layer (322) is provided between the conical coil (321) and the furnace body (2), and a refractory casting layer (324) is provided on the outside of the conical coil (321) and at the bottom of the furnace top member (323).
5. The thermal oil heating device according to claim 1, characterized in that: A smoke outlet (4) is provided on the outside of the furnace body (2), and the smoke outlet (4) is in communication with the convection zone (316).