Desulfurization frequency converter energy-saving prefabricated cabin based on thermal cycle compensation

Abstract

The utility model relates to a desulfurization frequency converter energy-saving prefabricated cabin based on thermal cycle compensation. The problems that in the prior art, desulfurization frequency converter containing equipment is difficult to provide heat cycle compensation and poor in heat dissipation effect are solved. The prefabricated cabin comprises a prefabricated cabin body, a protective structure is arranged at the upper end of the prefabricated cabin body, a thermal cycle compensation assembly connected with external desulfurization equipment is arranged in the prefabricated cabin body, and a circulating heat dissipation mechanism acting on the interior of the prefabricated cabin body is arranged at the upper end of the prefabricated cabin body and located in the protective structure. The prefabricated cabin has the advantages that waste heat recovery of the desulfurization frequency converter can be achieved, the energy-saving effect is good, heat in the prefabricated cabin body can be rapidly discharged through the circulating heat dissipation mechanism, faults of the desulfurization frequency converter caused by overheating are avoided, and the heat dissipation effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to power distribution equipment technical field, concretely relates to a kind of energy-saving prefabricated cabin of desulfurization frequency converter based on thermal cycle compensation. BACKGROUND

[0002] In order to adapt to the load change of the unit and reduce the power consumption, the high-voltage motor of the general power plant unit will be modified. The most widely used way is to use high-voltage frequency converter for frequency conversion speed regulation. Generally, for high-voltage frequency converter and its supporting equipment, a frequency converter room needs to be built to place large equipment, cooling pipeline, cable channel, etc., which requires a large construction site and is difficult to be implemented in the power plant, and increases the engineering construction cost and construction period. In addition, the existing frequency converter placement equipment cannot provide thermal cycle compensation, and the heat dissipation effect is poor.

[0003] In order to solve the problems existing in the prior art, people have carried out long-term exploration and proposed various solutions. For example, the Chinese patent document discloses a prefabricated cabin for storing electrical equipment [CN2023231514627], which comprises a cabin body and a connecting piece. The cabin body is in the shape of a cuboid, and the connecting piece is arranged on the outer side of one of the side panels of the cabin body. A cabin chamber is formed in the cabin body, and at least part of the cabin chamber forms a storage space for storing electrical equipment. Two prefabricated cabins can be connected and fixed by the connecting pieces to be butted against each other.

[0004] The above-mentioned scheme solves the problem of high construction cost of frequency converter placement equipment in the prior art to some extent, but the scheme still has many deficiencies, for example, it is difficult to provide thermal cycle compensation, and the heat dissipation effect is poor. SUMMARY

[0005] The utility model aims at the above problem, provides a kind of energy-saving prefabricated cabin of desulfurization frequency converter based on thermal cycle compensation.

[0006] To achieve the above object, the utility model adopts the following technical scheme: an energy-saving prefabricated cabin of desulfurization frequency converter based on thermal cycle compensation, comprising a prefabricated cabin main body, a protection structure is arranged at the upper end of the prefabricated cabin main body, a thermal cycle compensation assembly connected with external desulfurization equipment is arranged in the prefabricated cabin main body, and a circulating heat dissipation mechanism acting on the inside of the prefabricated cabin main body is arranged at the upper end of the prefabricated cabin main body and in the protection structure.

[0007] In the above-mentioned energy-saving prefabricated cabin of desulfurization frequency converter based on thermal cycle compensation, the protection structure comprises a rain eave arranged at the upper end of the prefabricated cabin main body, protection plates are arranged on both sides of the rain eave, strip-shaped inlet and outlet air holes are arranged on the protection plates, and dust screens are arranged on the inlet and outlet air holes.

[0008] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the desulfurization frequency converter assembly area is arranged in the prefabricated cabin body, an inner circulation assembly area is arranged on one side of the desulfurization frequency converter assembly area, and a control area is arranged on the other side.

[0009] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the prefabricated cabin body comprises an outer anticorrosion steel plate, and an inner heat preservation layer is arranged in the prefabricated cabin body; a gas guide channel is formed between the heat preservation layer and the anticorrosion steel plate, and heat preservation cotton is arranged on the inner wall of the gas guide channel.

[0010] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the circulating heat dissipation mechanism comprises an air inlet fan arranged at one end of the upper side of the prefabricated cabin body, and an air outlet fan arranged at the other end of the upper side of the prefabricated cabin body; a partition support partition connected with a rain eave is arranged between the air inlet fan and the air outlet fan.

[0011] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the air inlet fan is communicated with the gas guide channel at one end of the prefabricated cabin body; a plurality of air inlet holes are arranged on the heat preservation layer and communicated with the gas guide channel; the air outlet fan is communicated with the gas guide channel at the other end of the prefabricated cabin body, and the gas guide channel is communicated with the inside of the prefabricated cabin body through a plurality of air outlet holes.

[0012] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the thermal cycle compensation assembly comprises a heat exchanger arranged on the outer wall of the prefabricated cabin body, and a circulating pipeline arranged on the inner wall of the prefabricated cabin body; and a circulating pump is arranged on the circulating pipeline.

[0013] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, a PLC controller and a communication unit are arranged in the control area; a plurality of temperature sensor modules are arranged in the prefabricated cabin body, and the temperature sensor modules are connected with the PLC controller through the communication unit.

[0014] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, the heat exchanger is further connected with an electric auxiliary heating unit; the electric auxiliary heating unit is connected with the PLC controller; and a heat exchange pipeline connected with the circulating pipeline is arranged on the heat exchanger.

[0015] In the energy-saving prefabricated cabin of the desulfurization frequency converter based on thermal cycle compensation, a plurality of first heat conduction points are arranged on the circulating pipeline and in contact with the desulfurization frequency converter arranged in the desulfurization frequency converter assembly area; and a plurality of second heat conduction points are arranged on the circulating pipeline and in the control area and connected with the control equipment arranged in the control area.

[0016] Compared with the prior art, the advantages of the utility model lie in: through setting heat cycle compensation assembly in prefabricated cabin main body, recycling desulfurization frequency converter waste heat and using for desulfurization process heating, reducing external energy consumption, and prefabricated cabin main body uses modular partition arrangement, reduces installation period, reduces civil engineering and debugging cost, secondly, utilize circulating heat radiation mechanism to be able to quickly discharge prefabricated cabin main body heat, avoid overheating and lead to the failure of desulfurization frequency converter, and the heat dissipation effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the circulating heat radiation mechanism schematic diagram of the utility model;

[0019] Figure 3 It is the heat cycle compensation assembly arrangement drawing in the utility model;

[0020] Figure 4 It is the local structure connection block diagram in the utility model;

[0021] In the drawing: prefabricated cabin main body 1, desulfurization frequency converter assembly area 11, internal circulation assembly area 12, control area 13, anticorrosion steel sheet 14, heat preservation inner layer 15, gas guide channel 16, heat preservation cotton 17, protective structure 2, rainproof eave 21, protective plate 22, air inlet and outlet hole 23, dust screen 24, heat cycle compensation assembly 3, heat exchanger 31, electric auxiliary heating unit 311, circulating pipeline 32, first heat conduction point 321, second heat conduction point 322, circulating pump 33, PLC controller 34, communication unit 35, temperature sensor module 36, circulating heat radiation mechanism 4, air inlet fan 41, exhaust fan 42, partition support baffle 43, air inlet hole 44, air outlet hole 45. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings and specific embodiment.

[0023] As Figures 1-4 Indicated, a kind of based on heat cycle compensation's desulfurization frequency converter energy-saving prefabricated cabin, including prefabricated cabin main body 1, prefabricated cabin main body 1 upper end is equipped with protective structure 2, prefabricated cabin main body 1 is equipped with heat cycle compensation assembly 3 with the heat cycle compensation assembly 3 of external desulfurization equipment connection in it, prefabricated cabin main body 1 upper end and located in protective structure 2 is equipped with circulating heat radiation mechanism 4 acting on prefabricated cabin main body 1 inside.

[0024] Among them, protective structure 2 includes setting rainproof eave 21 in prefabricated cabin main body 1 upper end, rainproof eave 21 both sides are equipped with protective plate 22, and protective plate 22 is equipped with the air inlet and outlet hole 23 of strip-shaped setting, air inlet and outlet hole 23 is equipped with dust screen 24.

[0025] The air inlet and outlet hole 23 includes an air inlet hole and an air outlet hole, which are used for air inlet of the air inlet fan 41 and air outlet of the air outlet fan 42 respectively.

[0026] Further, the prefabricated cabin body 1 is provided with a desulfurization frequency converter assembly area 11, one side of the desulfurization frequency converter assembly area 11 is provided with an internal circulation assembly area 12, and the other side is provided with a control area 13.

[0027] The prefabricated cabin body 1 is designed with a modular area, which is quick and convenient to install on site.

[0028] Further, the prefabricated cabin body 1 includes a corrosion-resistant steel plate 14 arranged on the outer layer, and a heat preservation inner layer 15 arranged on the inner layer of the prefabricated cabin body 1, a gas guide channel 16 is formed between the heat preservation inner layer 15 and the corrosion-resistant steel plate 14, and heat preservation cotton 17 is arranged on the inner wall of the gas guide channel 16.

[0029] The corrosion-resistant steel plate 14 is used to improve the protection effect and resist rain and snow erosion, and the heat preservation inner layer 15 is arranged to prevent internal heat loss.

[0030] Further, the circulating heat dissipation mechanism 4 includes an air inlet fan 41 arranged at one end of the upper side of the prefabricated cabin body 1, an air outlet fan 42 arranged at the other end of the upper side of the prefabricated cabin body 1, and a partition support partition 43 connected with the rain eave 21 arranged between the air inlet fan 41 and the air outlet fan 42.

[0031] Specifically, the air inlet fan 41 is in communication with the gas guide channel 16 at one end of the prefabricated cabin body 1, a plurality of air inlet holes 44 are arranged on the heat preservation inner layer 15 and in communication with the gas guide channel 16, the air outlet fan 42 is in communication with the gas guide channel 16 at the other end of the prefabricated cabin body 1, and the gas guide channel 16 is in communication with the inside of the prefabricated cabin body 1 through a plurality of air outlet holes 45.

[0032] The air inlet fan 41 and the air outlet fan 42 are arranged to exchange fresh air for the prefabricated cabin body 1, so as to realize air cooling.

[0033] In detail, the thermal cycle compensation assembly 3 includes a heat exchanger 31 arranged on the outer wall of the prefabricated cabin body 1, a circulating pipeline 32 arranged on the inner wall of the prefabricated cabin body 1, and a circulating pump 33 arranged on the circulating pipeline 32.

[0034] The heat exchanger 31 is used to recover the waste heat generated by the desulfurization frequency converter, and a fluid heat conducting medium is arranged in the circulating pipeline 32.

[0035] Preferably, a PLC controller 34 and a communication unit 35 are arranged in the control area 13, a plurality of temperature sensor modules 36 are arranged in the prefabricated cabin body 1, and the temperature sensor modules 36 are connected with the PLC controller 34 through the communication unit 35.

[0036] The temperature sensor module 36 is used to monitor the temperature in the cabin, the circulating medium temperature and the external environment temperature in real time.

[0037] In addition, the heat exchanger 31 is connected with an electric auxiliary heating unit 311, the electric auxiliary heating unit 311 is connected with the PLC controller 34, and the heat exchanger 31 is provided with a heat exchange pipeline 312 connected with the circulating pipeline 32.

[0038] When the waste heat generated by the recovered desulfurization frequency converter cannot meet the process requirement, heating is performed through the electric auxiliary heating unit 311.

[0039] More specifically, the circulating pipeline 32 is provided with a plurality of first heat conduction points 321 in contact with the desulfurization frequency converter arranged in the desulfurization frequency converter assembly area 11, and the part of the circulating pipeline 32 located in the control area 13 is provided with a plurality of second heat conduction points 322 connected with the control equipment arranged in the control area 13.

[0040] In summary, the principle of the embodiment is that:

[0041] The internal circulation mode: when the prefabricated cabin main body 1 is used daily, the inlet air fan 41 and the exhaust air fan 42 are closed, the circulating pump 33 is opened, the waste heat generated by the desulfurization frequency converter is obtained through the heat circulation compensation assembly 3 to supply the desulfurization process, and when the supplied waste heat is insufficient, the electric auxiliary heating unit 311 is used for heat supplement;

[0042] The external circulation mode: when the waste heat of the desulfurization frequency converter exceeds the heating requirement of the desulfurization process, the circulating pump 33 is closed, the inlet air fan 41 and the exhaust air fan 42 are opened, the heat in the prefabricated cabin main body 1 is quickly discharged, and the purpose of rapid cooling is achieved.

[0043] The specific embodiments described in the present application are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0044] Although the pre-prepared cabin body 1, desulfurization frequency converter assembly area 11, inner circulation assembly area 12, control area 13, corrosion-resistant steel plate 14, heat preservation inner layer 15, gas guide channel 16, heat preservation cotton 17, protective structure 2, rainproof eave 21, protective plate 22, air inlet and outlet hole 23, dust screen 24, heat circulation compensation assembly 3, heat exchanger 31, electric auxiliary heating unit 311, circulating pipeline 32, first heat conduction point 321, second heat conduction point 322, circulating pump 33, PLC controller 34, communication unit 35, temperature sensor module 36, circulating heat dissipation mechanism 4, air inlet fan 41, air outlet fan 42, partition support partition 43, air inlet hole 44, air outlet hole 45 and other terms are used more in this paper, but the possibility of using other terms is not excluded. Using these terms is only to facilitate the description and explanation of the essence of the utility model; it is contrary to the spirit of the utility model to interpret them as any kind of additional limitation.

Claims

1. A heat cycle compensation-based desulfurization frequency converter energy-saving prefabricated cabin, comprising a prefabricated cabin main body (1), characterized in that, The prefabricated cabin body (1) is provided with a protection structure (2) at the upper end, and a heat cycle compensation assembly (3) connected with external desulfurization equipment is arranged in the prefabricated cabin body (1), and a circulating heat dissipation mechanism (4) acting on the inside of the prefabricated cabin body (1) is arranged at the upper end of the prefabricated cabin body (1) and in the protection structure (2).

2. The heat cycle compensation based desulfurization frequency converter energy saving prefabricated cabin according to claim 1, characterized in that, The protection structure (2) comprises a rainproof eave (21) arranged at the upper end of the prefabricated cabin body (1), and a protection plate (22) is arranged at the two sides of the rainproof eave (21), and a strip-shaped air inlet and outlet hole (23) is arranged on the protection plate (22), and a dust screen (24) is arranged on the air inlet and outlet hole (23).

3. The heat cycle compensation based desulfurization inverter energy-saving prefabricated cabin according to claim 1, characterized in that, The prefabricated cabin body (1) is provided with a desulfurization frequency converter assembly area (11) inside, and an internal circulation assembly area (12) is arranged on one side of the desulfurization frequency converter assembly area (11) and a control area (13) is arranged on the other side.

4. The heat cycle compensation based desulfurization frequency converter energy saving pre-fabricated cabin according to claim 3, characterized in that, The prefabricated cabin body (1) comprises an anti-corrosion steel plate (14) arranged on the outer layer, and a heat preservation inner layer (15) is arranged on the inner layer of the prefabricated cabin body (1), and a gas guide channel (16) is formed between the heat preservation inner layer (15) and the anti-corrosion steel plate (14), and heat preservation cotton (17) is arranged on the inner wall of the gas guide channel (16).

5. The heat cycle compensation based desulfurization inverter energy-saving pre-fabricated cabin according to claim 4, characterized in that, The circulating heat dissipation mechanism (4) comprises an air inlet fan (41) arranged at one end of the upper side of the prefabricated cabin body (1), and an air outlet fan (42) is arranged at the other end of the upper side of the prefabricated cabin body (1), and a partition support partition (43) connected with the rainproof eave (21) is arranged between the air outlet fan (42) and the air inlet fan (41).

6. The heat cycle compensation based desulfurization inverter energy-saving pre-fabricated cabin according to claim 5, characterized in that, The air inlet fan (41) is communicated with the gas guide channel (16) at one end of the prefabricated cabin body (1), a plurality of air inlet holes (44) are arranged on the heat preservation inner layer (15) and communicated with the gas guide channel (16), the air outlet fan (42) is communicated with the gas guide channel (16) at the other end of the prefabricated cabin body (1), and the gas guide channel (16) is communicated with the inside of the prefabricated cabin body (1) through a plurality of air outlet holes (45).

7. The heat cycle compensation based desulfurization inverter energy-saving pre-fabricated cabin according to claim 6, characterized in that, The heat cycle compensation assembly (3) comprises a heat exchanger (31) arranged on the outer wall of the prefabricated cabin body (1), and a circulating pipeline (32) is arranged on the inner wall of the prefabricated cabin body (1), and a circulating pump (33) is arranged on the circulating pipeline (32).

8. The heat cycle compensation based desulfurization inverter energy-saving pre-fabricated cabin according to claim 7, characterized in that, The control area (13) is provided with a PLC controller (34) and a communication unit (35), a plurality of temperature sensor modules (36) are arranged in the prefabricated cabin body (1), and the temperature sensor modules (36) are connected with the PLC controller (34) through the communication unit (35).

9. The heat cycle compensation based desulfurization inverter energy-saving pre-fabricated cabin according to claim 8, characterized in that, The heat exchanger (31) is further connected with an electric auxiliary heating unit (311), the electric auxiliary heating unit (311) is connected with the PLC controller (34), and a heat exchange pipeline (312) connected with the circulating pipeline (32) is arranged on the heat exchanger (31).

10. The heat cycle compensation based desulfurization inverter energy saving pre-fabricated cabin according to claim 9, characterized in that, The circulating pipeline (32) is provided with a plurality of first heat conduction points (321) in contact with the desulfurization frequency converter arranged in the desulfurization frequency converter assembly area (11), and the part of the circulating pipeline (32) in the control area (13) is provided with a plurality of second heat conduction points (322) connected with the control equipment arranged in the control area (13).

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