Sleeve type heat storage device

Abstract

The utility model discloses a sleeve type heat storage device, belongs to the technical field of phase change heat storage devices, and aims at solving the problems that in the prior art, a phase change heat storage and exchange body is common in heat storage and utilization effect and single in use mode, the sleeve type heat storage device comprises a heat preservation pipe shell, and the phase change heat storage and exchange body is fixed between the inner walls of the heat preservation pipe shell. A waste heat recycling mechanism is arranged in the heat preservation pipe shell. According to the phase change heat storage and exchange device, through the arrangement of the waste heat recycling mechanism, the electric heating wire is heated under the electrifying effect and heats the water passing pipeline and the protective sleeve shell, so that flowing water in the water passing pipeline can be heated, and meanwhile, a circulation opening space in a closed state between the protective sleeve shell and the phase change heat storage and exchange body is heated; and heat is finally absorbed by the phase change heat storage and exchange body and stored in a latent heat mode, so that waste heat can be effectively recycled in the heating process of flowing water in the water pipeline, and the stored heat of the phase change heat storage and exchange body is reused for water flow heating operation under the condition that electric energy heating is stopped subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of phase change heat storage devices, and in particular relates to a sleeve-type heat storage device. Background Art

[0002] Phase change heat storage is a kind of heat storage that can absorb and store process waste heat, waste heat and solar energy, and release it when needed. In the heat source utilization system, its main working principle is to heat the phase change material heat storage and exchange body through resistance wire heating to achieve thermal energy storage. When the end user needs heat, the heat stored in the phase change heat storage and exchange body is exported and applied through the heat conductive medium.

[0003] At present, the existing heat storage device structure is not convenient for efficiently recovering the waste heat during the heating production of the electric heating wire for subsequent reuse. Conventional heat storage devices use a single heating medium to recover waste heat, and the heat stored in the phase change heat storage and exchange body is also extracted using the previous medium when it is reused. This makes the heat storage and utilization effect of the phase change heat storage and exchange body general and the usage method is relatively simple.

[0004] Therefore, a shell-and-tube heat storage device is needed to solve the problems in the prior art that the heat storage and utilization effect of the phase change heat storage and exchange body is general and the usage method is relatively single. Utility Model Content

[0005] The purpose of the utility model is to provide a sleeve-type heat storage device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a sleeve-type heat storage device, comprising an insulating tube shell, a phase-change heat storage and exchange body is fixed between the inner walls of the insulating tube shell, a waste heat recovery mechanism is arranged inside the insulating tube shell, the waste heat recovery mechanism comprises a protective sleeve, an electric heating wire and a water pipe, the protective sleeve is penetrated into the interior of the phase-change heat storage and exchange body, the water pipe is penetrated and fixed in the interior of the protective sleeve, the electric heating wire is spirally wound on the outer surface of the water pipe, a hot air enhancement mechanism is arranged at one end of the insulating tube shell, the hot air enhancement mechanism comprises a fixed cover plate, a flow port, a stop valve and a blower unit, the fixed cover plate is fixed at one end of the insulating tube shell, the stop valve is fixed at one end of the fixed cover plate, the blower unit is fixed at the end of the stop valve away from the fixed cover plate, and a flow port is arranged between the phase-change heat storage and exchange body and the protective sleeve.

[0007] It should be noted in the solution that a water passage chamber is provided inside the water passage pipe, and one end of the electric heating wire extends out of the inner cavity of the protective sleeve.

[0008] It is further worth mentioning that an assembly opening is opened at the center of one end surface of the fixed cover plate, and the protective sleeve shell is passed through and fixed at the assembly opening of the fixed cover plate.

[0009] It should be further explained that the interior of the fixed cover plate is hollow, and a ventilation opening is provided on the end surface of the fixed cover plate opposite to the thermal insulation pipe shell, and the ventilation opening is communicated with the hollow cavity of the fixed cover plate.

[0010] As a preferred implementation, an air inlet port is provided at the joint between the stop valve and the fixed cover plate, and the air inlet port is communicated with the hollow cavity of the fixed cover plate.

[0011] As a preferred implementation, the ventilation opening of the fixed cover plate is aligned with the flow opening, and the air outlet end of the blower unit is arranged to align with the flow opening.

[0012] As a preferred implementation, the stop valve is automatically controlled by a solenoid valve, and the stop valve seals and cuts off the airflow of the blower unit and the fixed cover plate.

[0013] As a preferred embodiment, a magnetic cover plate is provided at one end of the thermal insulation pipe shell, and one end surface of the magnetic cover plate is magnetically covered on one end surface of the thermal insulation pipe shell.

[0014] Compared with the prior art, the present invention provides a casing-type heat storage device, which has at least the following beneficial effects:

[0015] ⑴ Through the waste heat recovery and utilization mechanism set up, the electric heating wire heats up under the action of electricity and heats the water pipe and the protective sleeve, which can not only heat the flowing water in the water pipe, but also heat the closed flow port space between the protective sleeve and the phase change heat storage and exchange body. The heat is finally absorbed by the phase change heat storage and exchange body and stored in the form of latent heat. In this way, the waste heat can be effectively recovered during the heating of the flowing water in the water pipe, and the heat stored in the phase change heat storage and exchange body can be reused for water heating operation when the electric energy heating is stopped later.

[0016] (2) Through the hot air enhancement mechanism, the normal temperature airflow generated by the blower unit is introduced into the circulation port through the shut-off valve and the ventilation opening of the fixed cover plate, and the blown normal temperature airflow can realize hot air output in the process of passing through the circulation port where the phase change heat storage and exchange body is located. In this way, a variety of media can be used to receive the heat when the phase change heat storage and exchange body is used for heat storage, and the coordination of water flow and air flow can maximize the efficiency of using the heat stored in the phase change heat storage and exchange body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional diagram of the overall structure of a casing-type heat storage device of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the cross-sectional structure of a heat-insulating tube shell of a sleeve-type heat storage device of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the cross-sectional structure of a protective casing of a casing-type heat storage device of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the fixed cover plate structure of a sleeve-type heat storage device of the utility model.

[0022] In the figure: 1. Insulated pipe shell; 2. Fixed cover plate; 3. Protective sleeve shell; 4. Electric heating wire; 5. Water pipe; 6. Phase change heat storage and exchange body; 7. Water chamber; 8. Flow port; 9. Assembly port; 10. Stop valve; 11. Blower unit; 12. Ventilation opening; 13. Air inlet port; 14. Magnetic cover plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] See also Figure 1-4 The utility model provides a sleeve-type heat storage device, including a thermal insulation tube shell 1, a phase change heat storage and exchange body 6 is fixed between the inner walls of the thermal insulation tube shell 1, a waste heat recovery mechanism is arranged inside the thermal insulation tube shell 1, the waste heat recovery mechanism includes a protective sleeve 3, an electric heating wire 4 and a water pipe 5, the protective sleeve 3 is penetrated inside the phase change heat storage and exchange body 6, the water pipe 5 is penetrated and fixed inside the protective sleeve 3, the electric heating wire 4 is spirally wound on the outer surface of the water pipe 5, a hot air enhancement mechanism is arranged at one end of the thermal insulation tube shell 1, the hot air enhancement mechanism includes a fixed cover plate 2, a flow port 8, a stop valve 10 and a blower unit 11, the fixed cover plate 2 is fixed at one end of the thermal insulation tube shell 1, the stop valve 10 is fixed at one end of the fixed cover plate 2, the blower unit 11 is fixed at the end of the stop valve 10 away from the fixed cover plate 2, and a flow port 8 is arranged between the phase change heat storage and exchange body 6 and the protective sleeve 3.

[0025] Further Figure 1 , Figure 2 and Figure 3As shown, it is worth to explain in detail that a water chamber 7 is opened inside the water pipe 5, and one end of the electric heating wire 4 extends out of the inner cavity of the protective sleeve shell 3.

[0026] Further Figure 3 As shown, it is worth to explain in detail that an assembly opening 9 is opened at the center of one end surface of the fixed cover plate 2, and the protective sleeve shell 3 is passed through and fixed at the assembly opening 9 of the fixed cover plate 2.

[0027] This solution has the following working process: before use, the two ends of the water pipe 5 are respectively connected to the water delivery pipe. When hot water is needed, one end of the electric heating wire 4 is energized. The electric heating wire 4 heats up under the action of electricity and heats the water pipe 5 and the protective shell 3. In this way, not only the flowing water in the water pipe 5 can be heated, but also the closed flow port 8 space between the protective shell 3 and the phase change heat storage and exchange body 6 can be heated. The heat is finally absorbed by the phase change heat storage and exchange body 6 and stored in the form of latent heat. In this way, the waste heat can be effectively recovered during the heating of the flowing water in the water pipe 5, and the stored heat of the phase change heat storage and exchange body 6 can be reused for water heating operation when the electric energy heating is stopped later.

[0028] According to the above working process, it can be known that the electric heating wire 4 heats up under the action of electricity and heats the water pipe 5 and the protective shell 3, so that not only the flowing water in the water pipe 5 can be heated, but also the closed flow port 8 space between the protective shell 3 and the phase change heat storage and exchange body 6 can be heated, and the heat is finally absorbed by the phase change heat storage and exchange body 6 and stored in the form of latent heat. In this way, the waste heat can be effectively recovered during the heating process of the flowing water in the water pipe 5, and the stored heat of the phase change heat storage and exchange body 6 can be reused for water heating operation when the electric energy heating is stopped later.

[0029] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the interior of the fixed cover plate 2 is hollow, and a ventilation opening 12 is opened on the end surface of the fixed cover plate 2 opposite to the thermal insulation pipe shell 1, and the ventilation opening 12 is connected to the hollow cavity of the fixed cover plate 2.

[0030] Further Figure 4 As shown, it is worth to explain in detail that the air inlet port 13 is opened at the joint of the stop valve 10 and the fixed cover plate 2, and the air inlet port 13 is communicated with the hollow cavity of the fixed cover plate 2.

[0031] Further Figure 1As shown, it is worth explaining in detail that the ventilation opening 12 of the fixed cover plate 2 is aligned with the circulation port 8, and the air outlet end of the blower unit 11 is arranged to align with the circulation port 8. When the phase change heat storage and exchange body 6 is used for heat storage, the magnetic cover plate 14 is moved out from one end of the insulation tube shell 1, and then the air duct of the stop valve 10 is opened, so that the blower unit 11, the stop valve 10, the fixed cover plate 2 and the circulation port 8 cooperate to form an air duct, and the cold air generated by the blower unit 11 is introduced into the circulation port 8 through the stop valve 10 and the ventilation opening 12 of the fixed cover plate 2, and the blown normal temperature airflow can realize hot air output in the process of passing through the circulation port 8 where the phase change heat storage and exchange body 6 is located. In this way, a variety of media can be used to receive when the phase change heat storage and exchange body 6 is used for heat storage, and the cooperation of water flow and air flow can use the heat storage of the phase change heat storage and exchange body 6 with great efficiency.

[0032] Further as Figure 1 As shown, it is worth to explain in detail that the stop valve 10 is automatically controlled by a solenoid valve, and the stop valve 10 seals and cuts off the air flow of the blower unit 11 and the fixed cover plate 2.

[0033] Further as Figure 1 As shown, it is worth explaining in detail that a magnetic cover plate 14 is provided at one end of the thermal insulation pipe shell 1 , and one end surface of the magnetic cover plate 14 is magnetically covered on one end surface of the thermal insulation pipe shell 1 .

[0034] In summary: the electric heating wire 4 heats up under the action of electricity and heats the water pipe 5 and the protective sleeve 3, so that it can not only heat the flowing water in the water pipe 5, but also heat the closed flow port 8 space between the protective sleeve 3 and the phase change heat storage and exchange body 6, and the heat is finally absorbed by the phase change heat storage and exchange body 6 and stored in the form of latent heat, so that the waste heat can be effectively recovered during the heating of the flowing water in the water pipe 5, and the heat stored in the phase change heat storage and exchange body 6 can be reused for water heating operation when the electric energy heating is stopped later; the normal temperature airflow generated by the blower unit 11 is introduced into the flow port 8 through the stop valve 10 and the ventilation opening 12 of the fixed cover plate 2, and the blown normal temperature airflow can realize hot air output in the process of passing through the flow port 8 where the phase change heat storage and exchange body 6 is located, so that a variety of media can be used to receive when the phase change heat storage and exchange body 6 is used for heat storage, and the coordination of water flow and air flow can use the heat stored in the phase change heat storage and exchange body 6 with great efficiency.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipe-in-tube heat storage device, comprising a heat-insulating pipe shell (1), characterized in that: A phase-change heat storage and exchange body (6) is fixed between the inner walls of the thermal insulation tube shell (1), and a waste heat recovery mechanism is arranged inside the thermal insulation tube shell (1). The waste heat recovery mechanism comprises a protective shell (3), an electric heating wire (4) and a water pipe (5). The protective shell (3) is penetrated inside the phase-change heat storage and exchange body (6), the water pipe (5) is penetrated and fixed inside the protective shell (3), the electric heating wire (4) is spirally wound on the outer surface of the water pipe (5), and the thermal insulation tube shell ( A hot air enhancement mechanism is provided at one end of the heat preservation tube shell (1), the hot air enhancement mechanism comprising a fixed cover plate (2), a flow port (8), a stop valve (10) and a blower unit (11); the fixed cover plate (2) is fixed to one end of the heat preservation tube shell (1); the stop valve (10) is fixed to one end of the fixed cover plate (2); the blower unit (11) is fixed to one end of the stop valve (10) away from the fixed cover plate (2); and a flow port (8) is provided between the phase change heat storage and exchange body (6) and the protective sleeve shell (3).

2. A sleeve-type heat storage device according to claim 1, characterized in that: A water passage chamber (7) is provided inside the water passage pipe (5), and one end of the electric heating wire (4) extends out of the inner cavity of the protective sleeve shell (3).

3. A sleeve-type heat storage device according to claim 2, characterized in that: An assembly opening (9) is provided at the center of one end surface of the fixed cover plate (2), and the protective sleeve shell (3) is passed through and fixed at the assembly opening (9) of the fixed cover plate (2).

4. A sleeve-type heat storage device according to claim 3, characterized in that: The interior of the fixed cover plate (2) is hollow, and a ventilation opening (12) is provided on an end surface of the fixed cover plate (2) opposite to the thermal insulation pipe shell (1), and the ventilation opening (12) is connected to the hollow cavity of the fixed cover plate (2).

5. A sleeve-type heat storage device according to claim 4, characterized in that: An air inlet port (13) is provided at the joint between the stop valve (10) and the fixed cover plate (2), and the air inlet port (13) is communicated with the hollow cavity of the fixed cover plate (2).

6. A sleeve-type heat storage device according to claim 5, characterized in that: The ventilation opening (12) of the fixed cover plate (2) is aligned with the circulation opening (8), and the air outlet end of the blower unit (11) is arranged to align with the circulation opening (8).

7. A sleeve-type heat storage device according to claim 6, characterized in that: The stop valve (10) is automatically controlled by a solenoid valve, and the stop valve (10) seals and stops the air flow of the blower unit (11) and the fixed cover plate (2).

8. A sleeve-type heat storage device according to claim 7, characterized in that: A magnetic cover plate (14) is provided at one end of the thermal insulation pipe shell (1), and one end surface of the magnetic cover plate (14) is magnetically covered on one end surface of the thermal insulation pipe shell (1).

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