Heat energy recycling bin of dewaxing kettle

Abstract

The utility model is suitable for the technical field of heat energy recovery, and provides a dewaxing kettle heat energy recovery barrel which comprises a recovery barrel body. The heat preservation layer is arranged on the inner side wall of the recycling bin body; the barrel cover is fixed at the top of the recycling barrel body through a bolt; the water supplementing pipe and the hot water discharging pipe are embedded into the outer side wall of the recycling bin body, and the water supplementing pipe is located above the hot water discharging pipe; the waste gas inlet and the waste gas outlet are embedded in the top of the barrel cover, and the waste gas inlet is located on one side of the waste gas outlet; the heat exchange calandria is integrally formed between the waste gas inlet and the waste gas outlet; heat in waste gas steam and water are subjected to cold and heat exchange through the heat exchange calandria, heat energy can be recycled, the heated water can be supplied to a dewaxing kettle steam-producing boiler for use, a wax supply pipeline is heated, and a storage container is heated and subjected to heat preservation, so that heat energy loss is effectively reduced, and the recycling effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat recovery, in particular to a heat recovery barrel for a dewaxing kettle. Background Art

[0002] In the production of precision casting, there is a process called dewaxing. The dewaxing kettle consists of a steam-producing part that generates steam and a working part that puts the product into the cavity for processing. When the steam pressure reaches the production requirement of 0.8MPa, the working part is put into the dewaxing process. After the product is processed, the steam supply valve is closed and the steam from the working part is discharged.

[0003] At present, there are several ways to treat the waste gas from dewaxing precision casting: direct discharge: some will install a simple silencer at the discharge port, some will discharge it into the sewer, and a small part of the utilization is to put the discharge pipe and the wax delivery pipe in parallel to heat the wax delivery pipe. The heat energy recovery effect of steam exhaust gas is poor.

[0004] Therefore, a dewaxing kettle heat energy recovery barrel is proposed. Utility Model Content

[0005] The utility model provides a heat energy recovery barrel for a dewaxing kettle, aiming to solve the above-mentioned problem.

[0006] The utility model is implemented as follows: a heat recovery barrel for a dewaxing kettle comprises: a recovery barrel body; a heat preservation layer arranged on the inner wall of the recovery barrel body; and a barrel cover fixed to the top of the recovery barrel body by bolts; a water supply pipe and a hot water discharge pipe embedded in the outer wall of the recovery barrel body, the water supply pipe is located above the hot water discharge pipe; an exhaust gas inlet and an exhaust gas outlet embedded in the top of the barrel cover, the exhaust gas inlet is located on one side of the exhaust gas outlet; a heat exchange exhaust pipe integrally formed between the exhaust gas inlet and the exhaust gas outlet; a water vapor discharge port embedded in the central position of the top of the barrel cover; a circulation pump fixed to the outer wall of the recovery barrel body by bolts; a first connecting pipe fixed to the output end of the circulation pump; and a second connecting pipe fixed to the input end of the circulation pump, one end of the second connecting pipe being welded to the central position of the bottom of the recovery barrel body. A drainage pipe welded to one end of the first connecting pipe; and a drainage hole opened on the outer wall of the drainage pipe.

[0007] Preferably, the water supply pipe, the hot water discharge pipe and the second connecting pipe are all connected to the recovery barrel body.

[0008] Preferably, the heat exchange pipe is C-shaped and surrounds.

[0009] Preferably, the first connecting pipe is communicated with the drain pipe, the cross section of the drain pipe is an L-shaped structure, and one end of the drain pipe is blocked.

[0010] Preferably, the drainage hole is communicated with the inner space of the drainage pipe.

[0011] Preferably, the barrel cover is provided with a temperature sensor and a water level sensor mounting hole, and the temperature sensor and the water level sensor are mounted in the mounting hole.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] The heat in the exhaust gas steam is exchanged with water through the heat exchange pipe, so that the heat energy can be recovered and reused. The heated water can be supplied to the dewaxing kettle steam production boiler, to heat the wax supply pipeline and to heat and insulate the storage container, thereby effectively reducing the loss of heat energy and achieving good recycling effect. By circulating the water in the recovery barrel up and down, the problem of high temperature of the upper water layer and low temperature of the lower water layer in the recovery barrel can be avoided, thereby ensuring the uniformity and rate of heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the barrel structure of the recycling barrel of the utility model (when the top is placed upward);

[0016] Figure 3 It is a schematic diagram of the barrel cover structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the barrel structure of the recycling barrel of the utility model (when the bottom is placed upward);

[0018] Figure 5 It is a schematic diagram of the structure of the liquid discharge pipe of the utility model.

[0019] In the figure: 1. Recovery barrel body; 2. Insulation layer; 3. Barrel cover; 4. Water supply pipe; 5. Hot water discharge pipe; 6. Waste gas inlet; 7. Waste gas outlet; 8. Heat exchange exhaust pipe; 9. Water vapor discharge port; 10. Circulation pump; 11. First connecting pipe; 12. Drain pipe; 13. Drain hole; 14. Second connecting pipe; 15. Installation hole. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The utility model embodiment provides a dewaxing kettle heat recovery barrel, such as Figure 1-5 As shown, it includes a recycling barrel body 1, an insulation layer 2 is arranged on the inner wall of the recycling barrel body 1, and a barrel cover 3 is fixedly connected to the top of the recycling barrel body 1 by bolts, a water supply pipe 4 and a hot water discharge pipe 5 are embedded on one side of the outer wall of the recycling barrel body 1, and the water supply pipe 4 is located above the hot water discharge pipe 5, and an exhaust gas inlet 6 and an exhaust gas outlet 7 are embedded and penetrated on the top of the barrel cover 3, the exhaust gas inlet 6 is located on one side of the exhaust gas outlet 7, and a heat exchange exhaust pipe 8 is integrally formed between the exhaust gas inlet 6 and the exhaust gas outlet 7, and a heat exchange exhaust pipe 8 is ... A water vapor discharge port 9 is fixedly connected by bolts, a circulation pump 10 is fixedly connected by bolts on the outer wall of the recovery barrel body 1 on one side away from the water supply pipe 4, the output end of the circulation pump 10 is fixedly connected to the first connecting pipe 11 by bolts, and the input end of the circulation pump 10 is fixedly connected to the second connecting pipe 14 by bolts, one end of the second connecting pipe 14 is welded to the center of the bottom of the recovery barrel body 1, a drain pipe 12 is welded to the end of the first connecting pipe 11 away from the circulation pump 10, and a drainage hole 13 is opened on the outer wall of one side of the drain pipe 12.

[0023] By setting up the heat exchange pipe 8, the waste gas inlet 6 and the waste gas outlet 7, the hot gas generated by the dewaxing kettle can be introduced into the recovery barrel, and the heat exchange pipe is used to exchange heat with the water in the barrel, so as to preheat or heat the water and improve the utilization rate of thermal energy.

[0024] Since heat energy is recycled and reused, it can reduce dependence on fresh heat sources, reduce energy consumption, and achieve energy conservation and emission reduction effects.

[0025] The design of the circulation pump 10 and the connecting pipes 11 and 14 can realize the circulation of water in the barrel, ensure that the water is evenly heated in the barrel, and improve the heating efficiency.

[0026] The design of the water supply pipe 4 can automatically replenish water according to the water level in the barrel, keep the water level in the barrel stable, and ensure the continuity and stability of the heat recovery process.

[0027] The water vapor discharge port 9 is designed to open automatically when the pressure in the barrel is too high, releasing excess heat and pressure to ensure the safe operation of the system.

[0028] The design of the drain pipe 12 and the drain hole 13 facilitates the discharge of impurities and sediments in the barrel, and is convenient for maintenance and cleaning.

[0029] The design of the recycling barrel is suitable for a variety of industrial occasions, especially those processes that generate a lot of waste heat, and has good adaptability. By recycling and reusing heat energy, production costs can be significantly reduced and economic benefits can be improved.

[0030] To sum up, the dewaxing kettle heat recovery barrel of the present application realizes efficient recovery and reuse of heat energy through its unique design, has obvious energy-saving and emission reduction effects, and at the same time improves production efficiency and economic benefits. It is a practical and efficient industrial heat recovery equipment.

[0031] It should be noted that since the existing steam exhaust gas from dewaxing precision casting has a poor effect on heat energy recovery and utilization, this embodiment uses the heat exchange pipe 8 to exchange heat in the exhaust gas steam with water, so that the heat energy can be recovered and reused. The heated water can be supplied to the dewaxing kettle steam production boiler, to heat the wax supply pipeline, and to heat and insulate the storage container, thereby effectively reducing heat energy loss and achieving good recovery and utilization effects. By circulating the water in the recovery barrel body 1 up and down, the problem of high temperature of the upper water layer and low temperature of the lower water layer in the recovery barrel body 1 can be avoided, thereby ensuring the uniformity and rate of heat exchange.

[0032] Specifically, in this embodiment, this scheme mainly includes a heat exchange pipe 8. When in use, water is injected into the interior of the recovery barrel body 1 through the water supply pipe 4, and the exhaust gas inlet 6 is connected to the steam exhaust pipe of the dewaxing kettle. The steam exhaust gas enters the heat exchange pipe 8 through the exhaust gas inlet 6. The heat exchange pipe 8 is arranged in a C-shaped surrounding shape inside the recovery barrel body 1. When the steam exhaust gas containing heat flows inside the heat exchange pipe 8, the steam exhaust gas and the water in the recovery barrel body 1 exchange heat, and the heat is transferred to the water, and the water is heated. The exhaust gas after heat exchange passes through the exhaust gas outlet 7. Discharge, during the heat exchange process, the external power supply of the circulation pump 10 is turned on, and the circulation pump 10 works to pump the water at the bottom of the recovery barrel body 1 through the second connecting pipe 14 and the first connecting pipe 11 to the drain pipe 12 in turn, and the water in the drain pipe 12 flows out from multiple directions through the drain hole 13, and the upper and lower layers of water in the recovery barrel body 1 are mixed to ensure uniform heating of the water. When the water is heated to the required temperature, the hot water is discharged through the hot water discharge pipe 5, and the water vapor discharge port 9 is opened to discharge the hot air in the recovery barrel body 1 to avoid excessive pressure in the recovery barrel body 1.

[0033] In a further preferred embodiment of the present invention, Figure 1-2 and Figure 4-5 As shown, the water supply pipe 4, the hot water discharge pipe 5 and the second connecting pipe 14 are all connected to the recovery barrel body 1, and the drainage hole 13 is connected to the internal space of the drainage pipe 12.

[0034] In this embodiment, water can flow into and out of the recovery barrel body 1 through the interconnected structure.

[0035] In a further preferred embodiment of the present invention, Figure 3 As shown, the heat exchange tube 8 is C-shaped and encircled.

[0036] In this embodiment, the contact area between the exhaust gas and water can be increased by the C-shaped surrounding heat exchange pipe 8, thereby ensuring sufficient heat exchange.

[0037] In a further preferred embodiment of the present invention, Figure 2 and Figure 5 As shown, the first connecting pipe 11 is connected to the drain pipe 12 , the cross section of the drain pipe 12 is an L-shaped structure, and one end of the drain pipe 12 is blocked.

[0038] In this embodiment, through the L-shaped drain pipe 12, a part of the drain pipe 12 can be made vertical to the inside of the recovery barrel body 1, so that the drain holes 13 on the drain pipe 12 can flow water out from multiple directions to achieve uniform mixing of the water.

[0039] The C-shaped surrounding heat exchange pipe 8 design increases the contact area between the exhaust gas and the water, making the heat transfer more sufficient and uniform. This structure helps to improve the heat exchange efficiency and ensure that the heat in the exhaust gas can be transferred to the water more effectively.

[0040] The L-shaped design of the drain pipe 12 allows a portion of it to be vertical inside the recovery barrel, so that the drain hole 13 can discharge water from multiple directions, which helps to achieve uniform mixing of the water in the barrel. This design can prevent the water temperature in the barrel from stratifying, ensure that the water temperature in the entire barrel is consistent, and further improve the heat exchange efficiency.

[0041] The interconnected design of the first connecting pipe 11 and the drain pipe 12, as well as the function of the circulating pump 10, form a closed water circulation system. This system can ensure that the water circulates continuously in the barrel and continuously contacts the heat exchange drain pipe, thereby continuously absorbing the heat in the exhaust gas.

[0042] Due to the uniform mixing and circulation of water, the water in the recovery barrel can be heated more evenly, which helps to improve the heat energy recovery efficiency of the recovery barrel.

[0043] The L-shaped drain pipe design makes the draining and cleaning process more convenient, reducing the complexity and time of maintenance.

[0044] Through the design of the circulation pump and connecting pipe, the water temperature and pressure in the barrel can be effectively controlled, reducing the risk of system overheating and excessive pressure and improving the safety of the system.

[0045] The design of C-shaped surrounding heat exchange pipe and L-shaped liquid discharge pipe enables the recovery barrel to adapt to different working conditions, improving the versatility and adaptability of the equipment.

[0046] The barrel cover 3 is provided with a temperature sensor and a water level sensor mounting hole 15, and the temperature sensor and the water level sensor are mounted in the mounting hole 15. The temperature of steam and water is detected by the temperature sensor, and the water level is detected by the water level sensor.

[0047] To sum up, the dewaxing kettle heat recovery barrel of the present application further improves the heat exchange efficiency, ensures the uniformity of water temperature, enhances the safety and maintenance convenience of the system through the design of C-shaped surrounding heat exchange exhaust pipe and L-shaped liquid discharge pipe. It is an efficient, reliable and adaptable heat recovery equipment.

[0048] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0049] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0050] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0051] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. Dewaxing kettle heat recovery barrel, characterized in that: include: Recovery barrel body (1); A heat-insulating layer (2) provided on the inner wall of the recycling barrel body (1); and A barrel cover (3) fixed to the top of the recovery barrel body (1) by bolts; A water supply pipe (4) and a hot water discharge pipe (5) are embedded in the outer wall of the recovery barrel body (1), wherein the water supply pipe (4) is located above the hot water discharge pipe (5); An exhaust gas inlet (6) and an exhaust gas outlet (7) are embedded in the top of the barrel cover (3), wherein the exhaust gas inlet (6) is located on one side of the exhaust gas outlet (7); A heat exchange exhaust pipe (8) integrally formed between the exhaust gas inlet (6) and the exhaust gas outlet (7); a water vapor discharge port (9) embedded in the center of the top of the barrel cover (3); A circulation pump (10) fixed to the outer wall of the recovery barrel body (1) by bolts; a first connecting pipe (11) fixed to the output end of the circulation pump (10); and A second connecting pipe (14) fixed to the input end of the circulation pump (10), one end of the second connecting pipe (14) being welded to the center of the bottom of the recovery barrel body (1); a liquid discharge pipe (12) welded to one end of the first connecting pipe (11); A drainage hole (13) is provided on the outer side wall of the drainage pipe (12).

2. The dewaxing kettle heat recovery barrel according to claim 1, characterized in that: The water supply pipe (4), the hot water discharge pipe (5) and the second connecting pipe (14) are all connected to the recovery barrel body (1).

3. The dewaxing kettle heat recovery barrel according to claim 1, characterized in that: The heat exchange pipe (8) is in a C-shaped surrounding shape.

4. The dewaxing kettle heat recovery barrel according to claim 1, characterized in that: The first connecting pipe (11) is in communication with the drainage pipe (12); the cross section of the drainage pipe (12) is an L-shaped structure, and one end of the drainage pipe (12) is blocked.

5. The dewaxing kettle heat recovery barrel according to claim 1, characterized in that: The drainage hole (13) is communicated with the inner space of the drainage pipe (12).

6. The dewaxing kettle heat recovery barrel according to claim 1, characterized in that: The barrel cover (3) is provided with a temperature sensor and a water level sensor mounting hole (15), and the temperature sensor and the water level sensor are mounted in the mounting hole (15).

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