A large steam generator and a steam generation system

Abstract

A large steam generator and a steam generation system. The large steam generator includes a hollow tank body, and a liquid storage cavity for storing the cleaning agent to be heated, a heat exchange coil located below the liquid storage cavity, and an on-line heater located below the heat exchange coil are provided in the tank body; the heat exchange coil has a communicating oil inlet and an oil outlet; the on-line heater has a communicating liquid inlet and a liquid outlet for heating the flowing-in liquid; the liquid outlet of the on-line heater is communicated with the oil inlet of the heat exchange coil, and the liquid inlet is used for being communicated with a hot oil pump connected to a hot oil tank; the oil outlet of the heat exchange coil is used for being communicated with the hot oil tank. It is a large steam generator that can generate a large amount of steam. When cleaning large workpieces, only one set of this large steam generator can generate enough steam volume to meet the workpiece cleaning requirements. Therefore, the pipeline design can be simplified, the material cost can be saved; the heat energy loss can be reduced, thereby reducing the electricity cost; at the same time, space can also be saved.

Description

Technical Field

[0001] The invention relates to the technical field of single-station hydrocarbon cleaning equipment, and in particular to a large steam generator and a steam generating system. Background Art

[0002] In the hardware industry, after parts are processed, a large amount of metal chips and processing oil will remain on the surface. Therefore, products need to be cleaned before assembly. In recent years, as the Chinese government has increased its investment and rectification efforts in environmental protection, all walks of life are facing great environmental pressure, so many manufacturers will choose hydrocarbon environmental protection equipment for cleaning. As we all know, in hydrocarbon cleaning equipment, the amount of steam directly affects the cleaning quality and drying effect. At present, for the cleaning of large hardware workpieces, multiple small steam generators are generally connected in parallel to obtain sufficient steam. The disadvantage of this method is that the pipeline connection between multiple small steam generators is complicated, the heat energy loss is large, and the space is wasted. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a large steam generator capable of generating a large amount of steam in view of the problems existing in the prior art. When cleaning a large workpiece, only one set of the large steam generator is needed to generate sufficient steam to meet the cleaning requirements of the workpiece. Thus, the pipeline design can be simplified, material costs can be saved, heat energy loss can be reduced, thereby reducing electricity costs, and space can also be saved.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a large steam generator for a single-station hydrocarbon cleaning machine, which includes a hollow tank body, wherein the tank body is provided with a liquid storage chamber for storing a cleaning agent to be heated, a heat exchange coil located at the lower side of the liquid storage chamber, and an online heater located at the lower side of the heat exchange coil; the heat exchange coil has a communicating oil inlet and an oil outlet; the online heater has a communicating liquid inlet and a liquid outlet, which are used to heat the inflowing liquid; the liquid outlet of the online heater is connected to the oil inlet of the heat exchange coil, and the liquid inlet is used to be connected to a hot oil pump connected to a hot oil tank; the oil outlet of the heat exchange coil is used to be connected to the hot oil tank.

[0005] By adopting the above technical solution, when in use, first connect the large steam generator with the matching hot oil tank and hot oil pump, then start the hot oil pump and the online heater, and the heat transfer oil in the hot oil tank will first pass through the online heater under the action of the hot oil pump, then flow to the heat exchange coil, and finally return to the suction port of the hot oil pump or the hot oil tank to achieve circulation. Since in the above technical solution, the online heater is directly set in the tank for storing the cleaning agent, the tube wall of the online heater can be directly used as a heat exchange surface to heat the cleaning agent flowing out of the liquid storage chamber, thereby greatly reducing heat energy loss and improving heat exchange efficiency. A large amount of cleaning agent can be heated in a short time to obtain a large amount of steam.

[0006] As an optimization solution for the large steam generator provided by the present invention, the online heater is welded and fixed inside the tank body.

[0007] As an optimization solution for the large steam generator provided by the present invention, the oil inlet and the oil outlet of the heat exchange coil are both passed through the outside of the tank body.

[0008] As an optimization solution for the large steam generator provided by the present invention, the oil inlet of the heat exchange coil is connected to the liquid outlet of the online heater through an external pipeline.

[0009] As an optimization solution for the large steam generator provided by the present invention, the oil inlet of the heat exchange coil is higher than the oil outlet of the heat exchange coil.

[0010] As an optimization solution for the large steam generator provided by the present invention, a steam outlet is provided on the side wall of the tank body at a position higher than the heat exchange coil.

[0011] As an optimization solution for the large steam generator provided by the present invention, a waste liquid discharge port is provided at the bottom of the tank body.

[0012] As an optimization solution for the large steam generator provided by the present invention, the tank body, the heat exchange coil and the online heater are all made of stainless steel.

[0013] In order to solve the above technical problems, the present invention also proposes a steam generation system, which includes the large steam generator as described above, and also includes a hot oil tank and a hot oil pump; the hot oil tank is connected to the hot oil pump through a first pipeline, the hot oil pump is connected to the liquid inlet of the online heater through a second pipeline, and the oil outlet of the heat exchange coil is connected to the hot oil tank through a third pipeline. Obviously, the steam generation system in the above technical solution can also achieve the effect of heating a large amount of cleaning agent in a short time to obtain a large amount of steam.

[0014] As an optimization solution for the steam generation system provided by the present invention, a first valve is provided on the first pipeline, a third valve is provided on the third pipeline, and the first pipeline and the third pipeline are also connected via a fourth pipeline.

[0015] The large steam generator provided by the present invention can achieve the following beneficial effects: the large steam generator includes a hollow tank body, the tank body is provided with a liquid storage chamber for storing the cleaning agent to be heated, a heat exchange coil located at the lower side of the liquid storage chamber, and an online heater located at the lower side of the heat exchange coil; the heat exchange coil has a communicating oil inlet and oil outlet; the online heater has a communicating liquid inlet and liquid outlet for heating the inflowing liquid; the liquid outlet of the online heater is connected to the oil inlet of the heat exchange coil, and the liquid inlet is used to connect to the hot oil pump connected to the hot oil tank; the oil outlet of the heat exchange coil is used to connect to the hot oil tank. By adopting the above technical solution, when in use, the large steam generator is first connected to the matching hot oil tank and hot oil pump, and then the hot oil pump and the online heater are started. Under the action of the hot oil pump, the heat-conducting oil in the hot oil tank will first pass through the online heater, then flow to the heat exchange coil, and finally return to the suction port of the hot oil pump or the hot oil tank to achieve circulation. In the above technical solution, the online heater is directly arranged in the tank for storing the cleaning agent. Thus, the tube wall of the online heater can be directly used as a heat exchange surface to heat the cleaning agent flowing out of the liquid storage chamber, thereby greatly reducing heat energy loss and improving heat exchange efficiency. A large amount of cleaning agent can be heated in a short time to obtain a large amount of steam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a large steam generator provided in Embodiment 1 of the present invention;

[0017] Figure 2 A reference diagram of the use status of a large steam generator provided in the first embodiment of the present invention, wherein the arrows in the diagram indicate the flow direction of the heat transfer oil;

[0018] Figure 3 This is a schematic diagram of the structure of the steam generating system provided in the second embodiment of the present invention.

[0019] Description of the accompanying drawings for the specific implementation:

[0020]

[0021] DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] like Figure 1 As shown, it is a preferred embodiment of the large steam generator provided by the present invention. It should be pointed out that the large steam generator provided by this embodiment is suitable for a single-station hydrocarbon cleaning machine and can provide a large amount of steam for the single-station hydrocarbon cleaning machine. The amount of steam it can generate is about 3 times more than that of the current small steam generator, while the floor space is only 1 / 2 of that of 3 small steam generators, and the total length of the pipeline installation is less than 1 / 2, which can greatly improve the production efficiency of the single-station hydrocarbon cleaning machine and reduce the production cost.

[0025] The large steam generator includes a hollow tank body 1, in which a liquid storage chamber 11 for storing the cleaning agent to be heated, a heat exchange coil 2 located at the lower side of the liquid storage chamber 11, and an online heater 3 located at the lower side of the heat exchange coil 2; the heat exchange coil 2 has a communicating oil inlet 21 and an oil outlet 22; the online heater 3 has a communicating liquid inlet 31 and a liquid outlet 32 ​​for heating the inflowing liquid; the liquid outlet 32 ​​of the online heater 3 is connected to the oil inlet 21 of the heat exchange coil 2, and the liquid inlet 31 is used to connect to the hot oil pump 4 connected to the hot oil tank 5; the oil outlet 22 of the heat exchange coil 2 is used to connect to the hot oil tank 5.

[0026] In this embodiment, the online heater 3 is welded and fixed in the tank body 1. The online heater 3 has a repeatedly bent heating tube, and the heating tube has the liquid inlet 31 and the liquid outlet 32. When the online heater 3 is started, the heating tube heats the inflowing heat transfer oil.

[0027] In this embodiment, the oil inlet 21 and the oil outlet 22 of the heat exchange coil 2 are both passed through the outside of the tank body 1, and the oil inlet 21 of the heat exchange coil 2 is higher than the oil outlet 22 of the heat exchange coil 2. The oil inlet 21 of the heat exchange coil 2 is connected to the liquid outlet 32 ​​of the online heater 3 through an external pipeline. In this way, the pipeline design inside the tank body 1 is simplified, saving manufacturing costs.

[0028] In this embodiment, a steam outlet 12 is provided on the side wall of the tank body 1 at a position higher than the heat exchange coil 2, and a waste liquid outlet 13 is provided at the bottom of the tank body 1. The steam outlet 12 is used to connect with other equipment of the single-station hydrocarbon cleaning machine, so as to provide steam for the single-station hydrocarbon cleaning machine. The waste liquid outlet 13 can ensure that the cleaning agent remaining in the tank body 1 is discharged smoothly.

[0029] In this embodiment, the tank body 1, the heat exchange coil 2 and the online heater 3 are all made of stainless steel. In particular, the heating pipe of the online heater 3 and the hot oil pump 4 used in conjunction with it are both explosion-proof.

[0030] When using the large steam generator, the large steam generator is first connected to the matching hot oil tank 5 and hot oil pump 4, and then the cleaning agent (usually hydrocarbon cleaning agent) in the liquid storage chamber 11 is released into the tank body 1 to immerse the online heater 3 and the heat exchange coil 2, and then the hot oil pump 4 and the online heater 3 are started. At this time, the heat transfer oil in the hot oil tank 5 will first pass through the online heater 3 under the action of the hot oil pump 4, then flow to the heat exchange coil 2, and finally return to the suction port of the hot oil pump 4 or the hot oil tank 5 to achieve circulation. Since in the above technical solution, the online heater 3 is directly set in the tank body 1 for storing the cleaning agent, in this way, not only the heat exchange coil 2 can heat the cleaning agent in the tank body 1, but the tube wall of the online heater 3 can also be directly used as a heat exchange surface to heat the cleaning agent flowing out of the liquid storage chamber 11, thereby greatly reducing the heat energy loss and greatly improving the heating efficiency of the cleaning agent. A large amount of cleaning agent can be heated in a short time to obtain a large amount of steam.

[0031] In summary, the implementation of the large steam generator provided in this embodiment can achieve the following beneficial effects:

[0032] 1. Under the action of the hot oil pump, the heat transfer oil in the hot oil tank will first pass through the online heater, then flow to the heat exchange coil, and finally return to the suction port of the hot oil pump or the hot oil tank, so as to realize the recycling of the heat transfer oil.

[0033] 2. The online heater is directly arranged in the tank for storing the cleaning agent. In this way, the tube wall of the online heater can be directly used as a heat exchange surface to heat the cleaning agent flowing out of the liquid storage chamber, thereby greatly reducing heat energy loss and improving heat exchange efficiency. A large amount of cleaning agent can be heated in a short time to obtain a large amount of steam.

[0034] 3. The pipeline connection is simple, which reduces the manufacturing cost.

[0035] Embodiment 2

[0036] The present embodiment provides a steam generation system, which includes the large steam generator provided in Embodiment 1, and also includes a hot oil tank 5 and a hot oil pump 4; the hot oil tank 5 is connected to the hot oil pump 4 through a first pipeline 6, the hot oil pump 4 is connected to the liquid inlet 31 of the online heater 3 through a second pipeline 7, and the oil outlet 22 of the heat exchange coil 2 is connected to the hot oil tank 5 through a third pipeline 8.

[0037] In this embodiment, a first valve 61 is provided on the first pipeline 6, and a third valve 81 is provided on the third pipeline 8, so as to control the flow direction of the heat transfer oil. The first pipeline 6 and the third pipeline 8 are also connected through a fourth pipeline 9, so that the heat transfer oil flowing out of the oil outlet 22 of the heat exchange coil 2 can flow back to the suction port of the hot oil pump 4 through the first pipeline 6, the fourth pipeline 9 and the first pipeline 6, forming a heat transfer oil circulation.

[0038] Obviously, the steam generating system provided in this embodiment can also achieve the effect of heating a large amount of cleaning agent in a short time to obtain a large amount of steam. For details, please refer to the first embodiment, which will not be described in detail here.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A large steam generator for single-station hydrocarbon cleaning machines, It is characterized in that It comprises a hollow tank body, wherein the tank body is provided with a liquid storage cavity for storing a cleaning agent to be heated, a heat exchange coil located at the lower side of the liquid storage cavity, and an online heater located at the lower side of the heat exchange coil; the heat exchange coil has a communicating oil inlet and an oil outlet; the online heater has a communicating liquid inlet and a liquid outlet, and is used to heat the inflowing liquid; the liquid outlet of the online heater is communicated with the oil inlet of the heat exchange coil, and the liquid inlet is used to be connected to a hot oil pump connected to a hot oil tank; the oil outlet of the heat exchange coil is used to be connected to the hot oil tank; The oil inlet and the oil outlet of the heat exchange coil are both passed through the outside of the tank body; The oil inlet of the heat exchange coil is connected to the liquid outlet of the online heater through an external pipeline; The oil inlet of the heat exchange coil is higher than the oil outlet of the heat exchange coil; When in use, the cleaning agent in the liquid storage cavity is released into the tank body to immerse the online heater and the heat exchange coil.

2. The large steam generator according to claim 1, It is characterized in that The online heater is welded and fixed in the tank body.

3. The large steam generator according to claim 1, It is characterized in that A steam outlet is provided at a position of the side wall of the tank body higher than the heat exchange coil.

4. The large steam generator according to claim 1, It is characterized in that A waste liquid discharge port is arranged at the bottom of the tank body.

5. The large steam generator according to claim 1, It is characterized in that The tank body, the heat exchange coil and the online heater are all made of stainless steel.

6. A steam generating system, It is characterized in that It includes a large steam generator as described in any one of claims 1 to 5, and also includes a hot oil tank and a hot oil pump; the hot oil tank is connected to the hot oil pump through a first pipeline, the hot oil pump is connected to the liquid inlet of the online heater through a second pipeline, and the oil outlet of the heat exchange coil is connected to the hot oil tank through a third pipeline.

7. The steam generating system according to claim 6, It is characterized in that The first pipeline is provided with a first valve, the third pipeline is provided with a third valve, and the first pipeline and the third pipeline are also connected through a fourth pipeline.

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