A heat conducting oil heat recycling system

Abstract

The application discloses a heat-conducting oil heat-recovery system, which is characterized in that heat-conducting oil heat exchangers, high-temperature pumps, oil inlet pipelines and oil return pipelines are arranged in heat energy utilization workshops, the oil inlet pipelines and the oil return pipelines are connected to heat energy utilization equipment in the workshops, and heat-conducting oil balancing mechanisms are arranged between the workshops, wherein the heat-conducting oil balancing mechanisms comprise balance oil tanks, the balance oil tanks are respectively connected to oil outlets and oil inlets of the heat energy utilization workshops, the oil outlets are connected to the high-temperature pump inlet ends through first oil pipes, and the oil inlets are connected to the oil return pipelines through second oil pipes. The multiple heat energy utilization workshops are connected through the balance oil tanks, which is beneficial to balancing materials in each heat energy utilization workshop, when the heat-conducting oil in one heat energy utilization workshop is short of and needs to be supplemented, the heat-conducting oil can be supplemented by the oil stored in the balance oil tank, and if the heat-conducting oil is still insufficient, the heat-conducting oil can be transferred from other workshops to the short-of workshop, the device is flexible in oil scheduling and is convenient for balancing operation of multiple workshops.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat energy utilization, and particularly relates to a heat conduction oil heat recycling system. BACKGROUND

[0002] In the process of preparing adhesive tape, the adhesive tape needs to be dried, and only the adhesive tape dried by drying can be normally used. The equipment used for adhesive tape drying is a tape machine, and the tape machine comprises an important equipment, i.e. an oven; the equipment is used for drying the adhesive tape base material film coated with glue. If the drying efficiency of the oven drying equipment can be improved, the production efficiency can be improved, and the energy saving goal of the production process can also be achieved. The application number CN201822057914.8 discloses a heat conduction oil heating oven adhesive tape drying system, which comprises a steam generator, a heat conduction oil heat exchanger and an oven radiator connected in sequence, the steam generator is communicated with the steam inlet at the upper end of the heat conduction oil heat exchanger through a pipeline, the steam outlet at the lower end of the heat conduction oil heat exchanger is communicated with a heat recovery device through a pipeline; the oil inlet of the heat conduction oil heat exchanger is communicated with the oil outlet of a high-level buffer tank through a heat conduction oil inlet pipeline, the oil outlet of the heat conduction oil heat exchanger is communicated with the inlet of a high-temperature pump through a heat conduction oil return pipeline, the outlet of the high-temperature pump is communicated with the oil inlet of the oven radiator through a heat conduction oil return pipeline, and the oil outlet of the oven radiator is communicated with the oil inlet of the high-level buffer tank through a heat conduction oil return pipeline.

[0003] The problem is that in the production and use of the factory, equipment problems or parking maintenance conditions will inevitably be encountered, and the medium used for heat recovery and heat transfer of the above-mentioned equipment is heat conduction oil, which needs to be emptied in the equipment for convenient maintenance, and it is time-consuming and laborious to directly use the material barrel to hold. Secondly, the above-mentioned equipment is usually provided with multiple groups in large-scale production in the factory, and the multiple groups of equipment will also encounter the problems of insufficient heat conduction oil or unbalanced oil and heat. In view of the above, it is necessary to propose a heat conduction oil heat recycling system to solve the above-mentioned problems. SUMMARY

[0004] The purpose of the present application is to solve the above technical problems, and provide a heat conduction oil heat recycling system, which can conveniently discharge the heat conduction oil in the equipment during maintenance, and can conveniently adjust the material and heat balance between systems during production.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: a heat conduction oil heat recycling system, comprising a plurality of heat energy utilization workshops, each heat energy utilization workshop is provided with a heat conduction oil heat exchanger, a high temperature pump, an oil inlet pipeline and an oil return pipeline, the oil inlet pipeline and the oil return pipeline are connected to heat energy utilization equipment in the workshop; a heat conduction oil balancing mechanism is arranged between the workshops, the heat conduction oil balancing mechanism comprises a balance tank, the balance tank is provided with an oil outlet and an oil inlet connected to the heat energy utilization workshops respectively, the oil outlet is connected to the high temperature pump inlet end through a first oil pipe, and the oil inlet is connected to the oil return pipeline through a second oil pipe.

[0006] Further, the inlet end of the heat conduction oil heat exchanger is connected to the oil return pipeline through a third oil pipe, the outlet end of the heat conduction oil heat exchanger is connected to the high temperature pump inlet end through a fourth oil pipe, and the outlet end of the high temperature pump is connected to the oil inlet pipeline through a fifth oil pipe.

[0007] Further, the balance tank is connected with two oil outlets and oil inlets, and each balance tank is connected to the heat energy utilization workshops on both sides through the oil outlets and the oil inlets to balance the oil and heat between the two workshops.

[0008] Further, each two heat energy utilization workshops and the corresponding balance tank form a heat energy utilization group, and the balance tanks are connected to form material transmission between a plurality of heat energy utilization groups.

[0009] Further, the balance tank is also provided with an oil supplement port and an oil return port, the oil return ports of the balance tanks are connected through an oil return pipe, and the oil supplement ports are connected through an oil supplement pipe.

[0010] Further, a storage tank is further included, the storage tank is connected with an oil outlet pipe and a recovery pipe, the bottom of the storage tank is connected with the oil outlet pipe, and the top of the storage tank is connected with the recovery pipe, the storage tank is connected with the oil supplement pipe through the oil outlet pipe, the other end of the recovery pipe is connected with the oil return pipe, and the oil outlet pipe is provided with a feeding pump.

[0011] Further, a three-way pipe is further arranged on the oil supplement pipe of each balance tank, the three-way pipe is connected with the oil return pipe through a bypass pipe, and the bypass pipe is provided with a bypass valve.

[0012] Further, the heat energy utilization workshop is also provided with a high position buffer tank, the bottom of the high position buffer tank is connected with the third oil pipe through a sixth oil pipe, the side of the high position buffer tank is connected with the fourth oil pipe through a seventh oil pipe, and the top of the high temperature buffer tank is connected with a breathing pipe.

[0013] Further, the first oil pipe is provided with a first adjusting valve, the second oil pipe is provided with a second adjusting valve, and the third oil pipe is provided with a third adjusting valve.

[0014] Compared with the prior art, the beneficial effects of the present application are that the present application connects multiple heat energy utilization workshops through a balance tank, which is conducive to balancing the materials of each heat energy utilization workshop, when the heat transfer oil in a heat energy utilization workshop is short of supplement, the balance tank can supplement the heat transfer oil stored therein, and if it is still not enough, the heat transfer oil can be transferred from other workshops to the short workshop, the present device is flexible in scheduling oil, and is convenient for balancing operation of multiple workshops; secondly, when a workshop needs to withdraw oil for maintenance operation, the balance tank can be used to withdraw oil to an oil storage tank or other workshops, avoiding the problem of using barrels to store oil, greatly speeding up the maintenance progress, and facilitating operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a heat energy utilization workshop and a heat transfer oil balancing mechanism flow process schematic diagram;

[0016] Figure 2 is a connection structure schematic diagram of two heat energy utilization groups;

[0017] Figure 3 is a heat transfer oil heat recovery utilization system flow process schematic diagram of the present application;

[0018] In the figure: 1, heat energy utilization workshop; 2, heat transfer oil heat exchanger; 3, high temperature pump; 4, oil inlet pipeline; 5, oil return pipeline; 6, balance tank; 7, oil outlet; 8, oil inlet; 9, first oil pipe; 10, second oil pipe; 11, third oil pipe; 12, fourth oil pipe; 13, fifth oil pipe; 14, oil supplement port; 15, oil withdrawal port; 16, oil withdrawal pipe; 17, oil supplement pipe; 18, oil storage tank; 19, oil outlet pipe; 20, recovery pipe; 21, oil supply pump; 22, three-way pipe; 23, bypass valve; 24, high-level buffer tank; 25, sixth oil pipe; 26, seventh oil pipe; 27, breathing pipe; 28, first regulating valve; 29, second regulating valve; 30, third regulating valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0020] Embodiment one

[0021] A heat transfer oil heat recovery utilization system, such as Figure 1As shown, including a plurality of heat energy utilization workshop 1, each heat energy utilization workshop 1 is provided with heat conducting oil heat exchanger 2, high temperature pump 3, oil inlet pipeline 4, oil return pipeline 5, heat energy utilization workshop 1 to the production of products generated by the combustion of organic solvent-rich gas to obtain heat energy, thereby reducing the emission of waste gas, the heat is used to heat the heat conducting oil in the heat conducting oil heat exchanger 2, the heat conducting oil is circulated in the heat energy utilization workshop 1 and the equipment in the workshop which needs to use heat energy is heated and provided with heat, such as Figure 1 As shown, the oil inlet pipeline 4 and the oil return pipeline 5 in the figure are connected to the heat energy utilization equipment in the workshop, the oil inlet pipeline 4 is connected to the inlet of the heat energy utilization equipment, and the outlet of the equipment after heat exchange is connected to the oil return pipeline 5, thereby forming a heat energy utilization loop, further, the inlet end of the heat conducting oil heat exchanger 2 is connected to the oil return pipeline 5 through the third oil pipe 11, the outlet end of the heat conducting oil heat exchanger 2 is connected to the inlet end of the high temperature pump 3 through the fourth oil pipe 12, and the outlet end of the high temperature pump 3 is connected to the oil inlet pipeline 4 through the fifth oil pipe 13; the high temperature pump 3 is the power source for the flow of the heat conducting oil in the heat energy utilization workshop 1, which promotes the circulation of the heat conducting oil in the loop, the heat conducting oil which is cooled after passing through the heat energy utilization equipment enters the heat conducting oil heat exchanger 2 to be heated and warmed up, and then is sent to the oil inlet pipeline 4 by the high temperature pump 3 to realize the circulation of the heat conducting oil in the workshop, the third adjusting valve 30 is arranged on the third oil pipe 11, and the circulation flow of the heat conducting oil can be controlled by the opening degree of the third adjusting valve 30, so that the circulation amount is controllable. The heat energy utilization workshop 1 is also provided with a high buffer tank 24, the bottom of the high buffer tank 24 is connected to the third oil pipe 11 through the sixth oil pipe 25, the side of the high buffer tank 24 is connected to the fourth oil pipe 12 through the seventh oil pipe 26, and the top of the high buffer tank is provided with a breathing pipe 27.

[0022] Example two:

[0023] As shown in example one, in the circulation in the separate heat energy utilization workshop 1, the problem of lack of heat conducting oil caused by production time operation may be encountered, or the heat value generated by the combustion of organic waste gas in a workshop is relatively high, which cannot be used in this workshop, and is easy to cause temperature to be too high, or the disadvantage of incomplete heat energy utilization, in order to solve such problems, at least two heat energy utilization workshops 1 are connected in this embodiment, so that the heat conducting oil can flow to each other, thereby realizing the effect of mass transfer and heat transfer.

[0024] Specifically, as shown in Figure 1As shown, heat conduction oil equalization mechanism is arranged between workshops, and the two workshops are connected and adjusted through the heat conduction oil equalization mechanism. The heat conduction oil equalization mechanism comprises a balance oil tank 6, which is used as an intermediate tank for buffering between the two workshops. The tank has a certain volume. When the oil in one workshop needs to be supplemented, the oil in the balance oil tank 6 can be sent to the workshop. Similarly, if the organic waste gas in one workshop generates more heat and the heat value is higher, the single workshop cannot fully utilize the heat. The heat conduction oil can be transferred to the balance oil tank 6, and then the heat can be transferred to the other workshop through the balance oil tank 6, so as to realize the exchange of oil between the two workshops. In actual use, the balance oil tank 6 is provided with an oil outlet 7 and an oil inlet 8 connected to the heat energy utilization workshop 1 respectively. The oil outlet 7 is connected to the inlet end of the high-temperature pump 3 through the first oil pipe 9. The oil inlet 8 is connected with the oil return pipeline 5 through the second oil pipe 10. The first adjusting valve 28 is arranged on the first oil pipe 9, and the second adjusting valve 29 is arranged on the second oil pipe 10. The balance oil tank 6 is connected with two oil outlets 7 and oil inlets 8. Each balance oil tank 6 is connected to the two heat energy utilization workshops 1 through the oil outlet 7 and the oil inlet 8 for balancing the oil and heat between the two workshops. When the workshop needs to be refueled, open the first adjusting valve 28. At this time, the heat conduction oil in the balance oil tank 6 can be supplemented into the workshop. When the heat value of the workshop is high and the temperature of the heat conduction oil is high, open the second adjusting valve 29 to send part of the heat conduction oil into the balance oil tank 6, and the heat conduction oil can be sent into another workshop through the balance oil tank 6, so as to achieve the effect of mass and heat transfer between the two workshops.

[0025] Example three:

[0026] After a long production, the heat energy utilization workshop 1 inevitably encounters equipment problems that need to be repaired, or regular equipment detection. When the above operations are performed, the heat conduction oil in a certain heat energy utilization workshop 1 needs to be withdrawn completely. In order to conveniently store the withdrawn heat conduction oil and avoid leakage and pollution of the environment, the present embodiment changes the barrel withdrawal oil mode in the prior art and sets a storage tank 18 connected with each heat energy utilization group, so as to realize the purpose of withdrawing the oil in the workshop as a whole. As shown in Figure 2 each two heat energy utilization workshops 1 and the corresponding balance oil tank 6 form a heat energy utilization group, and the balance oil tanks 6 are connected between the multiple heat energy utilization groups to form material transfer.

[0027] If one workshop needs to be repaired and the oil needs to be withdrawn, the high-temperature pump 3 can be used to pump the oil into the balance oil tank 6 in batches. The heat conduction oil can be uniformly sent to other workshops, or the heat conduction oil can be sent to the storage tank 18. Specifically, Figure 3As shown, the balance oil tank 6 is also provided with oil supplementing ports 14 and oil returning ports 15, the oil returning ports 15 of the balance oil tank 6 are connected through oil returning pipes 16, and the oil supplementing ports 14 are connected through oil supplementing pipes 17. An oil storage tank 18 is further included, which is connected with an oil outlet pipe 19 and a recovery pipe 20, the bottom of the oil storage tank 18 is connected with the oil outlet pipe 19, and the top is connected with the recovery pipe 20, the oil storage tank 18 is connected with the oil supplementing pipe 17 through the oil outlet pipe 19, the other end of the recovery pipe 20 is connected with the oil returning pipe 16, and the oil outlet pipe 19 is provided with an oil supply pump 21; specifically, when the oil level of the balance oil tank 6 is high during oil returning, the oil returning pipe 16 can be connected with the recovery pipe 20 to the oil storage tank 18 to return the heat conducting oil to the oil storage tank 18, or the oil returning pipe 16 can be connected to other balance oil tanks 6 for oil returning; after the maintenance is completed, the pipelines in the workshop need to be filled with oil, the oil supply pump 21 is opened to deliver the heat conducting oil in the oil storage tank 18 to the target balance oil tank 6 through the oil outlet pipe 19 and the oil supplementing pipe 17, and then the first oil pipe 9 is used to fill the pipelines with oil, so that the overall oil returning and oil filling operations of the workshop are realized, and since the above process is completed through the preset pipelines and the storage tank, the leakage phenomenon of the barrel oil returning mode is avoided, and the laborious operation of manual carrying and connecting pipelines is reduced, which has high use value.

[0028] Further, the oil supplementing pipe 17 of each balance oil tank 6 is further provided with a three-way pipe 22, the three-way pipe 22 is connected with the oil returning pipe 16 through a bypass pipe, and the bypass pipe is provided with a bypass valve 23; since the feeding of the balance oil tank 6 by the oil supply pump 21 can be operated in batches, the oil supply pump 21 is frequently started and stopped during the batch operation, and since the oil supply pump 21 is large, frequent starting and stopping will affect its service life, and therefore, during the interval of the batch operation, the oil outlet pipe 19 and the recovery pipe 20 are arranged in an internal circulation mode, that is, the bypass valve 23 of the corresponding three-way pipe 22 is opened to connect the oil outlet pipe 19 with the recovery pipe 20, and the oil is pumped back to the oil storage tank 18, and it can be understood that during the operation, the oil supply pump 21 and its valve can be adjusted to operate in a low-flow and low-power range, so as to avoid frequent starting and stopping.

[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat transfer oil heat recovery and utilization system, characterized in that, The application relates to a heat energy utilization system, which comprises a plurality of heat energy utilization workshops (1), a heat conducting oil heat exchanger (2), a high-temperature pump (3), an oil inlet pipeline (4) and an oil return pipeline (5) are arranged in each heat energy utilization workshop (1), the oil inlet pipeline (4) and the oil return pipeline (5) are connected to heat energy utilization equipment in the workshop, a heat conducting oil balancing mechanism is arranged between the workshops, the heat conducting oil balancing mechanism comprises a balance oil tank (6), the balance oil tank (6) is provided with an oil outlet (7) and an oil inlet (8) which are connected to the heat energy utilization workshops (1) respectively, the oil outlet (7) is connected to the high-temperature pump (3) inlet end through a first oil pipeline (9), the oil inlet (8) is connected with the oil return pipeline (5) through a second oil pipeline (10), the heat conducting oil heat exchanger (2) inlet end is connected with the oil return pipeline (5) through a third oil pipeline (11), the heat conducting oil heat exchanger (2) outlet end is connected with the high-temperature pump (3) inlet end through a fourth oil pipeline (12), and the high-temperature pump (3) outlet end is connected with the oil inlet pipeline (4) through a fifth oil pipeline (13). The balance oil tank (6) is provided with two oil outlets (7) and oil inlets (8), each balance oil tank (6) is connected to two heat energy utilization workshops (1) through the oil outlet (7) and the oil inlet (8) for balancing the oil and heat between the two workshops. Each two heat energy utilization workshops (1) and the corresponding balance oil tank (6) form a heat energy utilization group, and the balance oil tanks (6) are connected to form material transmission between a plurality of heat energy utilization groups; the two workshops are connected and mutually adjusted through the heat conducting oil balancing mechanism. The balance oil tank (6) is further provided with an oil supplementing port (14) and an oil discharging port (15), the oil discharging ports (15) of the balance oil tank (6) are connected through oil discharging pipelines (16), and the oil supplementing ports (14) are connected through oil supplementing pipelines (17). The application further comprises a storage tank (18), the storage tank (18) is provided with an oil outlet pipeline (19) and a recovery pipeline (20), the bottom of the storage tank (18) is connected with the oil outlet pipeline (19), and the top of the storage tank (18) is connected with the recovery pipeline (20), the storage tank (18) is connected with the oil supplementing pipeline (17) through the oil outlet pipeline (19), one end of the recovery pipeline (20) is connected with the oil discharging pipeline (16), and the oil outlet pipeline (19) is provided with a feeding pump (21). The oil supplementing pipeline (17) of each balance oil tank (6) is further provided with a three-way pipeline (22), the three-way pipeline (22) is connected with the oil discharging pipeline (16) through a bypass pipeline, and the bypass pipeline is provided with a bypass valve (23). The heat energy utilization workshop (1) is further provided with a high-position buffer tank (24), the bottom of the high-position buffer tank (24) is connected with the third oil pipeline (11) through a sixth oil pipeline (25), the side of the high-position buffer tank (24) is connected with the fourth oil pipeline (12) through a seventh oil pipeline (26), and the top of the high-position buffer tank (24) is provided with a breathing pipeline (27).

2. The heat oil heat recovery system according to claim 1, wherein The first oil pipeline (9) is provided with a first adjusting valve (28), the second oil pipeline (10) is provided with a second adjusting valve (29), and the third oil pipeline (11) is provided with a third adjusting valve (30).

3. The heat oil heat recovery system according to claim 1, wherein ​

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