Cold and heat exchange unit of air blower room

Abstract

The utility model relates to the technical field of air blower cooling, in particular to an air blower room cold and heat exchange unit which comprises a main exchanger, a standby exchanger, a common water way pipeline, a common oil way pipeline, a standby water way pipeline and a standby oil way pipeline. And the common water path pipeline and the common oil path pipeline are detachably connected with the main exchanger. In the cleaning process of the main exchanger, the standby exchanger works normally, so that the fan can run normally, and the production requirement cannot be influenced. Meanwhile, after the main exchanger is cleaned, the main exchanger is replaced again, and the standby exchanger is detached. And one standby exchanger can be used for a plurality of cold and heat exchange units, and each cold and heat exchange unit does not need to be provided with one standby exchanger, so that the expenditure is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of blower cooling, in particular to a hot and cold exchange unit in a blower room. Background Art

[0002] The impeller speed of a blower can reach approximately 12,800 rpm during operation. The extremely high speeds of the bearings and gearboxes can lead to extremely high temperature rises, making the blower's cooling system crucial for stable system operation. Existing blowers primarily use heat exchangers for cooling. The heat exchanger's circulating oil circuit runs through the entire tubing shell, interspersed with hundreds of thin water tubes with an inner diameter of 6 mm. An oil pump supplies cooling oil to the bearings and gearboxes for cooling, while a cooling water pump circulates cold water to exchange heat with the lubricating oil. This effectively reduces the heat generated by the oil and water, effectively reducing the heat generated by the oil.

[0003] However, due to the operating environment and design process, the water channels in the heat exchanger are easily affected by water quality, leading to pipe blockage, which significantly reduces the cooling effect and causes the fan oil temperature to overheat and trip. Therefore, the heat exchanger must be regularly disassembled and cleaned to clear the pipes. The cleaning process is lengthy, typically taking 6-8 hours. During this time, the fan cannot operate, thus affecting production needs. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a hot and cold exchange unit for a blower room, which is used to solve the problem in the prior art that when the fine water pipes in the hot and cold exchanger are blocked and need to be disassembled and cleaned, the blower cannot operate, thereby affecting production needs.

[0005] To achieve the above-mentioned objectives and other related objectives, the present invention provides a hot and cold exchanger unit for a blower room, the hot and cold exchanger unit comprising a main exchanger, a backup exchanger, a common water pipeline, a common oil pipeline, a backup water pipeline and a backup oil pipeline, the common water pipeline and the common oil pipeline both being detachably connected to the main exchanger, the backup water pipeline and the backup oil pipeline being used to be detachably connected to the backup exchanger, the cooling circuit formed by the main exchanger, the common water pipeline and the common oil pipeline and the cooling circuit formed by the backup exchanger, the backup water pipeline and the backup oil pipeline being independent of each other.

[0006] Optionally, the common water pipeline includes a common water inlet pipe and a common water outlet pipe, one end of the common water inlet pipe is connected to the water inlet end of the main exchanger, and the other end of the common water inlet pipe is communicated with the water outlet end of the cooling water pump, one end of the common water outlet pipe is connected to the water outlet end of the main exchanger, and the other end of the common water outlet pipe is communicated with the return water end of the cooling water pump;

[0007] The backup water pipeline includes a backup water inlet pipe and a backup water outlet pipe, one end of the backup water inlet pipe is used to connect to the water inlet end of the backup exchanger, and the other end of the backup water inlet pipe is connected to the side wall of the common water inlet pipe, one end of the backup water outlet pipe is used to connect to the water outlet end of the backup exchanger, and the other end of the backup water outlet pipe is connected to the side wall of the common water outlet pipe, and valves are respectively provided on the pipeline of the common water inlet pipe between the interface of the backup water inlet pipe on the common water inlet pipe and the water inlet end of the main exchanger, on the pipeline of the backup water inlet pipe, on the pipeline of the common water outlet pipe between the interface of the backup water outlet pipe on the common water outlet pipe and the water outlet end of the main exchanger, and on the pipeline of the backup water outlet pipe.

[0008] Optionally, the common oil pipeline includes a common oil inlet pipe and a common oil outlet pipe, one end of the common oil inlet pipe is connected to the oil inlet end of the main exchanger, and the other end of the common oil inlet pipe is communicated with the oil outlet end of the oil pump, one end of the common oil outlet pipe is connected to the oil outlet end of the main exchanger, and the other end of the common oil outlet pipe is communicated with the oil return end of the oil pump;

[0009] The backup oil circuit pipeline includes a backup oil inlet pipe and a backup oil outlet pipe, one end of the backup oil inlet pipe is used to connect the oil inlet end of the backup exchanger, and the other end of the backup oil inlet pipe is connected to the side wall of the common oil inlet pipe, one end of the backup oil outlet pipe is used to connect the oil outlet end of the backup exchanger, and the other end of the backup oil outlet pipe is connected to the side wall of the common oil outlet pipe, and valves are respectively provided on the pipeline of the common oil inlet pipe between the interface of the backup oil inlet pipe on the common oil inlet pipe and the oil inlet end of the main exchanger, on the pipeline of the backup oil inlet pipe, on the pipeline of the common oil outlet pipe between the interface of the backup oil outlet pipe on the common oil outlet pipe and the oil outlet end of the main exchanger, and on the pipeline of the backup oil outlet pipe.

[0010] Optionally, the valves are all stainless steel ball valves.

[0011] Optionally, the main exchanger and the backup exchanger are vertically spaced apart.

[0012] Optionally, the common water pipeline, the common oil pipeline, the backup water pipeline and the backup oil pipeline are all connected at their corners using universal flexible pipe elbows.

[0013] Optionally, the interface end where the common water pipe is connected to the main exchanger and the interface end where the backup water pipe is connected to the backup exchanger are both configured as nut joints to be threadedly connected to the external threaded ports of the main exchanger and the backup exchanger respectively.

[0014] Optionally, the interface end of the common oil pipeline connected to the main exchanger and the interface end of the backup oil pipeline connected to the backup exchanger are both configured as external threaded joints to be threadedly connected to the internal threaded ports of the main exchanger and the backup exchanger respectively.

[0015] Optionally, the heat exchange efficiency of the backup exchanger is greater than the heat exchange rate of the main exchanger, and the oil pressure of the circulating oil passing through the backup exchanger meets the required value.

[0016] In a blower room cold and hot exchanger unit of the utility model, a main exchanger and a backup exchanger are provided. When the thin water pipe inside the main exchanger is blocked, the backup exchanger is connected to the backup water pipe and the backup oil pipe, and the backup water pipe and the backup oil pipe are opened, and the normal water pipe and the normal oil pipe are closed. At this time, only the backup exchanger is connected to the backup water pipe and the backup oil pipe to form a cooling circuit for heat exchange. The main exchanger is then disassembled for cleaning. Since the backup exchanger operates normally during the cleaning of the main exchanger, the blower can operate normally and will not affect production needs. At the same time, after the main exchanger is cleaned, the main exchanger is replaced and the backup exchanger is disassembled. One backup exchanger can be used for multiple cold and hot exchanger units, and there is no need to equip each cold and hot exchanger unit with a backup exchanger, which saves money. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a hot and cold exchange unit in a blower room according to one embodiment of the present invention. DETAILED DESCRIPTION

[0018] Refer to the following Figure 1 To describe a blower room heat exchanger unit of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0019] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0022] like Figure 1 As shown, an embodiment of the present invention provides a heat and cold exchanger unit for a blower room, comprising a main exchanger 1, a backup exchanger 2, a common water pipeline, a common oil pipeline, a backup water pipeline, and a backup oil pipeline. The common water pipeline and the common oil pipeline are both detachably connected to the main exchanger 1, and the backup water pipeline and the backup oil pipeline are detachably connected to the backup exchanger 2. The cooling circuit formed by the main exchanger 1, the common water pipeline, and the common oil pipeline and the cooling circuit formed by the backup exchanger 2, the backup water pipeline, and the backup oil pipeline are independent of each other.

[0023] Under normal circumstances, only main exchanger 1 is connected to the main water and oil pipelines to form a cooling circuit for heat exchange. Backup exchanger 2 is not connected to the backup water and oil pipelines, and these are closed. If the capillary water pipes inside main exchanger 1 become clogged, backup exchanger 2 is connected to the backup water and oil pipelines, opened, and the main water and oil pipelines closed. Now, only backup exchanger 2 is connected to the backup water and oil pipelines to form a cooling circuit for heat exchange. Main exchanger 1 is then removed for cleaning. Since backup exchanger 2 operates normally while main exchanger 1 is being cleaned, the fan can continue to operate normally without impacting production needs. After cleaning, main exchanger 1 is replaced and backup exchanger 2 is removed. One backup exchanger 2 can be used for multiple hot and cold exchanger units, eliminating the need for a backup exchanger 2 for each unit, saving money.

[0024] Furthermore, the common water pipeline includes a common water inlet pipe 31 and a common water outlet pipe 32. One end of the common water inlet pipe 31 is connected to the water inlet end of the main exchanger 1, and the other end of the common water inlet pipe 31 is connected to the water outlet end of the cooling water pump. One end of the common water outlet pipe 32 is connected to the water outlet end of the main exchanger 1, and the other end of the common water outlet pipe 32 is connected to the return water end of the cooling water pump. The standby water pipeline includes a standby water inlet pipe 41 and a standby water outlet pipe 42. One end of the standby water inlet pipe 41 is used to connect to the water inlet end of the standby exchanger 2, and the other end of the standby water inlet pipe 41 is connected to the side wall of the common water inlet pipe 31. One end of the standby water outlet pipe 42 is used to connect to the water outlet end of the standby exchanger 2, and the other end of the standby water outlet pipe 42 is connected to the side wall of the common water outlet pipe 32. Valves 7 are respectively provided on the pipeline of the common water inlet pipe 31 between the interface of the spare water inlet pipe 41 on the common water inlet pipe 31 and the water inlet end of the main exchanger 1, on the pipeline of the spare water inlet pipe 41, on the pipeline of the common water outlet pipe 32 between the interface of the spare water outlet pipe 42 on the common water outlet pipe 32 and the water outlet end of the main exchanger 1, and on the pipeline of the spare water outlet pipe 42.

[0025] Under normal circumstances, the cooling water pump transports cooling water to the main exchanger 1 through the common water inlet pipe 31 for heat exchange, and discharges the main exchanger 1 through the common water outlet pipe 32 to flow back to the cooling water pump, thereby forming a cooling water circulation loop. When the main exchanger 1 is blocked, the standby exchanger 2 is connected to the standby water inlet pipe 41 and the standby water outlet pipe 42, and the valve 7 on the standby water inlet pipe 41 and the standby water outlet pipe 42 is opened, and the valve 7 on the common water inlet pipe 31 and the common water outlet pipe 32 is closed. The cooling water pump transports cooling water to the standby exchanger 2 through the standby water inlet pipe 41 for heat exchange, and discharges the standby exchanger 2 through the standby water outlet pipe 42 to flow back to the cooling water pump, thereby forming a cooling water circulation loop without affecting the heat exchange. By setting the valve 7, the switching of the pipeline is facilitated.

[0026] Furthermore, the common oil circuit pipeline includes a common oil inlet pipe 51 and a common oil outlet pipe 52. One end of the common oil inlet pipe 51 is connected to the oil inlet end of the main exchanger 1, and the other end of the common oil inlet pipe 51 is connected to the oil outlet end of the oil pump. One end of the common oil outlet pipe 52 is connected to the oil outlet end of the main exchanger 1, and the other end of the common oil outlet pipe 52 is connected to the oil return end of the oil pump. The standby oil circuit pipeline includes a standby oil inlet pipe 61 and a standby oil outlet pipe 62. One end of the standby oil inlet pipe 61 is used to connect to the oil inlet end of the standby exchanger 2, and the other end of the standby oil inlet pipe 61 is connected to the side wall of the common oil inlet pipe 51. One end of the standby oil outlet pipe 62 is used to connect to the oil outlet end of the standby exchanger 2, and the other end of the standby oil outlet pipe 62 is connected to the side wall of the common oil outlet pipe 52. Valves 7 are respectively provided on the pipeline of the normal oil inlet pipe 51 between the interface of the spare oil inlet pipe 61 on the normal oil inlet pipe 51 and the oil inlet end of the main exchanger 1, on the pipeline of the spare oil inlet pipe 61, on the pipeline of the normal oil outlet pipe 52 between the interface of the spare oil outlet pipe 62 on the normal oil outlet pipe 52 and the oil outlet end of the main exchanger 1, and on the pipeline of the spare oil outlet pipe 62.

[0027] Under normal circumstances, the oil pump transports the oil to the main exchanger 1 through the common oil inlet pipe 51 for cooling, and discharges the oil from the main exchanger 1 through the common oil outlet pipe 52 and flows back to the oil pump, thereby forming an oil circulation loop. When the main exchanger 1 is blocked, the backup exchanger 2 is connected to the backup oil inlet pipe 61 and the backup oil outlet pipe 62, and the valves 7 on the backup oil inlet pipe 61 and the backup oil outlet pipe 62 are opened, and the valves 7 on the common oil inlet pipe 51 and the common oil outlet pipe 52 are closed. The oil pump transports the oil to the backup exchanger 2 through the backup oil inlet pipe 61 for cooling, and discharges the oil from the backup exchanger 2 through the backup oil outlet pipe 62 and flows back to the oil pump, thereby forming an oil circulation loop without affecting the heat exchange. By setting the valve 7, the switching of the pipeline is facilitated.

[0028] Furthermore, the valve 7 on the oil circulation loop and the valve 7 on the cooling water circulation loop are both stainless steel ball valves, which have a simple structure and good sealing performance, thereby ensuring that the corresponding pipelines will not leak after the main exchanger 1 or the spare exchanger 2 is removed.

[0029] Furthermore, the main exchanger 1 and the backup exchanger 2 are arranged vertically, thereby reducing the space occupied by the main exchanger 1 and the backup exchanger 2. Alternatively, the main exchanger 1 and the backup exchanger 2 can also be arranged horizontally. Compared with the vertical arrangement of the main exchanger 1 and the backup exchanger 2, the space occupied increases, but it is more convenient to disassemble the main exchanger 1 and the backup exchanger 2.

[0030] Furthermore, the corners of the common water pipe, common oil pipe, spare water pipe, and spare oil pipe are all connected by universal flexible pipe elbows 8, thereby making the arrangement and turning of the pipes more convenient. Alternatively, the corners of the common water pipe, common oil pipe, spare water pipe, and spare oil pipe are all connected by metal hose joints.

[0031] Furthermore, the interface end connecting the common water line to the main exchanger 1 and the interface end connecting the backup water line to the backup exchanger 2 are both configured as nut joints, which are threadedly connected to the externally threaded ports of the main exchanger 1 and the backup exchanger 2, respectively. The interface end connecting the common oil line to the main exchanger 1 and the interface end connecting the backup oil line to the backup exchanger 2 are both configured as externally threaded joints, which are threadedly connected to the internally threaded ports of the main exchanger 1 and the backup exchanger 2, respectively. By providing nut joints and externally threaded joints, the threaded connection between the pipelines and the main exchanger 1 and the backup exchanger 2 is achieved, making the disassembly of the main exchanger 1 and the backup exchanger 2 more convenient.

[0032] Furthermore, the heat exchange efficiency of the backup exchanger 2 is greater than that of the main exchanger 1. And the oil pressure of the circulating oil passing through the backup exchanger 2 meets the required value. When the main exchanger 1 is blocked, the heat exchange efficiency has been reduced. At this time, the oil used for cooling can no longer be reduced to the required temperature, resulting in an overly high oil temperature. In order to prevent the fan oil temperature from tripping due to excessive oil temperature, when the backup exchanger 2 is connected to the cooling exchange system, the oil temperature needs to be quickly lowered. Therefore, it is better to select a backup exchanger 2 with a higher heat exchange rate than the main exchanger 1. However, due to the higher heat exchange rate of the backup exchanger 2, the volume of the backup exchanger 2 will also be larger. When selecting the backup exchanger 2, it is also necessary to consider whether the oil pressure provided by the oil pump meets the requirements when the backup exchanger 2 is too large. While meeting the oil pressure, a relatively large backup exchanger 2 is selected.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A hot and cold exchange unit for a blower room, characterized in that: The hot and cold exchanger group includes a main exchanger, a backup exchanger, a common water pipeline, a common oil pipeline, a backup water pipeline and a backup oil pipeline. The common water pipeline and the common oil pipeline are both detachably connected to the main exchanger, and the backup water pipeline and the backup oil pipeline are used to be detachably connected to the backup exchanger. The cooling circuit formed by the main exchanger, the common water pipeline and the common oil pipeline and the cooling circuit formed by the backup exchanger, the backup water pipeline and the backup oil pipeline are independent of each other.

2. The hot and cold exchange unit for the blower room according to claim 1, characterized in that: The common water pipeline includes a common water inlet pipe and a common water outlet pipe, one end of the common water inlet pipe is connected to the water inlet end of the main exchanger, and the other end of the common water inlet pipe is connected to the water outlet end of the cooling water pump, one end of the common water outlet pipe is connected to the water outlet end of the main exchanger, and the other end of the common water outlet pipe is connected to the return water end of the cooling water pump; The backup water pipeline includes a backup water inlet pipe and a backup water outlet pipe, one end of the backup water inlet pipe is used to connect to the water inlet end of the backup exchanger, and the other end of the backup water inlet pipe is connected to the side wall of the common water inlet pipe, one end of the backup water outlet pipe is used to connect to the water outlet end of the backup exchanger, and the other end of the backup water outlet pipe is connected to the side wall of the common water outlet pipe, and valves are respectively provided on the pipeline of the common water inlet pipe between the interface of the backup water inlet pipe on the common water inlet pipe and the water inlet end of the main exchanger, on the pipeline of the backup water inlet pipe, on the pipeline of the common water outlet pipe between the interface of the backup water outlet pipe on the common water outlet pipe and the water outlet end of the main exchanger, and on the pipeline of the backup water outlet pipe.

3. The hot and cold exchange unit for the blower room according to claim 1, characterized in that: The common oil pipeline includes a common oil inlet pipe and a common oil outlet pipe, one end of the common oil inlet pipe is connected to the oil inlet end of the main exchanger, and the other end of the common oil inlet pipe is connected to the oil outlet end of the oil pump, one end of the common oil outlet pipe is connected to the oil outlet end of the main exchanger, and the other end of the common oil outlet pipe is connected to the oil return end of the oil pump; The backup oil circuit pipeline includes a backup oil inlet pipe and a backup oil outlet pipe, one end of the backup oil inlet pipe is used to connect the oil inlet end of the backup exchanger, and the other end of the backup oil inlet pipe is connected to the side wall of the common oil inlet pipe, one end of the backup oil outlet pipe is used to connect the oil outlet end of the backup exchanger, and the other end of the backup oil outlet pipe is connected to the side wall of the common oil outlet pipe, and valves are respectively provided on the pipeline of the common oil inlet pipe between the interface of the backup oil inlet pipe on the common oil inlet pipe and the oil inlet end of the main exchanger, on the pipeline of the backup oil inlet pipe, on the pipeline of the common oil outlet pipe between the interface of the backup oil outlet pipe on the common oil outlet pipe and the oil outlet end of the main exchanger, and on the pipeline of the backup oil outlet pipe.

4. The hot and cold exchange unit for a blower room according to claim 2 or 3, characterized in that: The valves are all stainless steel ball valves.

5. The hot and cold exchange unit for the blower room according to claim 1, characterized in that: The main exchanger and the backup exchanger are vertically spaced apart and distributed.

6. The hot and cold exchange unit for the blower room according to claim 1, characterized in that: The corners of the common water pipeline, the common oil pipeline, the spare water pipeline and the spare oil pipeline are all connected by universal flexible pipe elbows.

7. The hot and cold exchange unit for the blower room according to claim 1, characterized in that: The interface end where the common water pipe is connected to the main exchanger and the interface end where the backup water pipe is connected to the backup exchanger are both configured as nut joints to be threadedly connected to the external threaded ports of the main exchanger and the backup exchanger respectively.

8. The hot and cold exchange unit for a blower room according to claim 1, characterized in that: The interface end of the common oil pipeline connected to the main exchanger and the interface end of the backup oil pipeline connected to the backup exchanger are both configured as external threaded joints to be threadedly connected to the internal threaded ports of the main exchanger and the backup exchanger respectively.

9. The hot and cold exchange unit for a blower room according to claim 1, characterized in that: The heat exchange efficiency of the backup exchanger is greater than the heat exchange rate of the main exchanger, and the oil pressure of the circulating oil passing through the backup exchanger meets the required value.

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