CN211777998U - Parallel circulating water-cooled permanent magnet variable frequency screw compressor - Google Patents
Parallel circulating water-cooled permanent magnet variable frequency screw compressor Download PDFInfo
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- CN211777998U CN211777998U CN201922250373.5U CN201922250373U CN211777998U CN 211777998 U CN211777998 U CN 211777998U CN 201922250373 U CN201922250373 U CN 201922250373U CN 211777998 U CN211777998 U CN 211777998U
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Abstract
The utility model discloses a parallel circulating water-cooled permanent magnet variable frequency screw compressor, which comprises a case, a motor in the case, a main water inlet and a main water outlet; the water cooling system comprises a main water inlet, a main water outlet, a comprehensive water cooling channel, a motor water cooling channel, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the main water inlet is connected with the comprehensive water cooling channel and the motor water cooling channel through a three-way valve; the comprehensive water cooling channel comprises a water cooler; the motor is provided with a motor shell, a motor shell water cooling channel is formed in the motor shell, and the motor water cooling channel is communicated with the motor shell water cooling channel; the parallel design of the water cooling channel and the motor water cooling channel is integrated, the cooling water can directly cool the motor of the compressor and cool lubricating oil simultaneously, and the design of an external cooling water device is matched, so that the cooling efficiency of the compressor is greatly improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a compressor technical field, especially a parallelly connected circulating water cooling formula permanent magnetism frequency conversion screw compressor.
Background
The cooling mode of the permanent magnet variable frequency motor adopted by the permanent magnet variable frequency screw compressor adopts an oil cooling mode, namely, an inlet and an outlet of lubricating oil are designed on the shell of the motor, an oil cooling flow channel is designed in the motor shell, the oil cooled by a cooler enters from the inlet of the motor shell, flows out from the outlet after passing through the cooling flow channel, is filtered by an oil filter and then is sprayed into the screw main machine, when the environmental temperature reaches over 38 ℃ in hot weather in summer, the exhaust temperature can reach about 95 ℃, the temperature of the lubricating oil cooled by the cooler can be about 75 ℃ generally, higher oil temperature enters into the shell of the oil cooling motor to cool the motor winding, and the temperature of the oil is high, so the cooling effect is poor, the temperature rise of the motor winding can be increased, and the motor winding is rapidly aged, affecting the service life of the motor.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a parallelly connected circulating water-cooled permanent magnetism variable frequency screw compressor.
The utility model provides a technical scheme that its technical problem adopted is:
a parallel circulating water-cooled permanent magnet variable frequency screw compressor comprises a case, a motor in the case, a main water inlet and a main water outlet; the water cooling system comprises a main water inlet, a main water outlet, a comprehensive water cooling channel, a motor water cooling channel, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the main water inlet is connected with the comprehensive water cooling channel and the motor water cooling channel through a three-way valve; the comprehensive water cooling channel comprises a water cooler; the motor is characterized in that a motor shell is arranged on the motor, a motor shell water cooling channel is formed in the motor shell, and the motor water cooling channel is communicated with the motor shell water cooling channel.
As an embodiment of the present invention, the water cooler includes a water-oil cooler and a water-air cooler, wherein the water-oil cooler and the water-air cooler are connected in series, the water-oil cooler cools the temperature of the compressed gas in the compressor by using water, and the water-air cooler cools the temperature of the lubricating oil in the compressor by using water.
As an embodiment of the present invention, the motor water cooling channel further includes a water filter, wherein the water filter is located between the motor casing water cooling channel and the total water inlet.
As an embodiment of the utility model, the machine incasement still is provided with vertical stand and is used for the fixed electric machine, wherein vertical stand is including being located the vertical support frame of the motor left and right sides, be provided with horizontal support frame and be connected with the motor between the vertical support frame upper end.
As an embodiment of the utility model, the machine incasement still is provided with vertical stand and is used for fixed motor, be provided with the water filter support on the vertical stand and be used for fixed water filter.
The utility model has the advantages that: the parallel design of the water cooling channel and the motor water cooling channel is integrated, the cooling water can directly cool the motor of the compressor and cool lubricating oil simultaneously, and the design of an external cooling water device is matched, so that the cooling efficiency of the compressor is greatly improved, and the service life is prolonged.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the utility model with the case removed;
fig. 3 is a schematic connection diagram of the integrated water cooling channel, the motor water cooling channel and the like of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein.
Referring to fig. 1, a parallel-cycle water-cooled permanent magnet inverter screw compressor includes a casing 100 and a motor 200 inside the casing 100, and the temperature inside the casing 100 is relatively high due to the operation of the motor 200 and other components. The chassis 100 of the present embodiment is provided with heat dissipation holes 110, and a heat dissipation fan 120 for dissipating heat inside the chassis 100.
Referring to fig. 1 and 2, the water cooling system further comprises a main water inlet 300 and a main water outlet 400 for connecting an external cooling water device, such as a cooling tower. The water cooled by the cooling tower outside the compressor assembly of this embodiment is admitted through the overall water inlet 300 of the screw compressor assembly.
Referring to fig. 2 and 3, the total water inlet 300 is connected with a comprehensive water cooling channel and a motor water cooling channel through a three-way valve, the total water outlet is connected with outlets of the comprehensive water cooling channel and the motor water cooling channel through the three-way valve, and the comprehensive water cooling channel and the motor water cooling channel form a parallel water cooling channel.
The integrated water cooling channel includes a water cooler 500, i.e., the integrated water cooling channel is responsible for cooling the lubricating oil, the compressed air, etc. with water. The water cooler 500 may be an existing cooler.
The motor 200 is provided with a motor housing 210, a motor housing water-cooling channel is arranged in the motor housing 210, and the motor water-cooling channel is communicated with the motor housing water-cooling channel in the motor housing 210, namely, the motor water-cooling channel is responsible for cooling the motor 200. On the premise of meeting the water cooling requirement, the distribution mode of the water cooling channels of the motor shell in the motor shell 210 is determined according to the model and the shape of the motor 200.
The parallel design of the water cooling channel and the motor water cooling channel is integrated, the compressor motor is directly cooled by water and lubricating oil simultaneously, and the cooling efficiency of the compressor is greatly improved by matching with the design of an external cooling water device. In practice, under the condition of hot weather in summer, for example, when the ambient temperature is greater than or equal to 38 ℃, the temperature of the water cooled by the cooling tower is generally consistent with the ambient temperature, the temperature of the cooling water is low, the cooling effect on the motor winding is good, and the temperature rise of the water outlet temperature and the water inlet temperature of the cooling water is about 5 ℃. The specific distribution of the comprehensive water cooling channel and the motor water cooling channel is determined according to the distribution of the internal parts of the compressor, and the details are not repeated.
The water cooling channel of the motor further comprises a water filter 600, wherein the water filter 600 is positioned between the water cooling channel of the motor shell and the main water inlet 300 and is used for filtering water entering the motor shell 210 to protect the motor 200. Referring to fig. 3, after cooling water enters the compressor, a part of the cooling water enters the water cooler 500 of the integrated water cooling channel to cool the lubricating oil, and a part of the cooling water enters the cooling flow channel of the water-cooled motor housing through the water filter to cool the motor winding.
The case 100 is further provided with a vertical bracket 700 for fixing the motor 200, and the vertical bracket 700 is provided with a water filter bracket 730 for fixing the water filter 600, so that the water filter 600 can be conveniently fixed and mounted, and the limited space in the case 100 can be saved.
The vertical support 700 comprises vertical support frames 710 positioned at the left side and the right side of the motor 200, and horizontal support frames 720 arranged between the upper ends of the vertical support frames 710 are connected with the motor, so that the motor 200 can be vertically installed, and the structure is more compact.
The water cooler 500 includes a water-oil cooler 510 and a water-gas cooler 520, wherein the water-oil cooler 510 and the water-gas cooler 520 are connected in series, the water-oil cooler 510 cools the temperature of the compressed gas in the compressor by using water, and the water-gas cooler 520 cools the temperature of the lubricating oil in the compressor by using water, so that the cooling efficiency of the lubricating oil is improved, and the cooling channel between the lubricating oil pipeline and the water-oil cooler 510, the cooling channel between the compressed gas pipeline and the water-gas cooler 520 can be connected by referring to the existing cooler structure.
According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.
Claims (5)
1. The utility model provides a parallelly connected circulating water-cooled permanent magnetism variable frequency screw compressor, includes motor (200) in quick-witted case (100) and quick-witted case (100), its characterized in that:
the water purifier also comprises a main water inlet (300) and a main water outlet (400);
the main water inlet (300) is connected with a comprehensive water cooling channel and a motor water cooling channel through a three-way valve, the main water outlet is connected with the comprehensive water cooling channel and an outlet of the motor water cooling channel through the three-way valve, and the comprehensive water cooling channel and the motor water cooling channel form a parallel water cooling channel;
the comprehensive water cooling channel comprises a water cooler (500);
be provided with motor housing (210) on motor (200), motor casing water-cooling channel has been seted up in motor housing (210), motor water-cooling channel with motor casing water-cooling channel intercommunication.
2. The parallel circulating water-cooled permanent magnet inverter screw compressor of claim 1, wherein: the water cooler (500) comprises a water-oil cooler (510) and a water-gas cooler (520), wherein the water-oil cooler (510) and the water-gas cooler (520) are connected in series, the water-oil cooler (510) cools the temperature of compressed gas in the compressor by using water, and the water-gas cooler (520) cools the temperature of lubricating oil in the compressor by using water.
3. The parallel circulating water-cooled permanent magnet inverter screw compressor of claim 1, wherein: the motor water cooling channel further comprises a water filter (600), wherein the water filter (600) is located between the motor shell water cooling channel and the main water inlet (300).
4. The parallel circulating water-cooled permanent magnet inverter screw compressor of claim 1, wherein: the motor case is characterized in that a vertical support (700) is further arranged in the case (100) and used for fixing the motor (200), wherein the vertical support (700) comprises vertical support frames (710) located on the left side and the right side of the motor (200), and a horizontal support frame (720) is arranged between the upper ends of the vertical support frames (710) and connected with the motor.
5. The parallel circulating water-cooled permanent magnet inverter screw compressor of claim 3, wherein: a vertical support (700) is further arranged in the case (100) and used for fixing the motor (200), and a water filter support (730) is arranged on the vertical support (700) and used for fixing the water filter (600).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250373.5U CN211777998U (en) | 2019-12-13 | 2019-12-13 | Parallel circulating water-cooled permanent magnet variable frequency screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250373.5U CN211777998U (en) | 2019-12-13 | 2019-12-13 | Parallel circulating water-cooled permanent magnet variable frequency screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777998U true CN211777998U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922250373.5U Active CN211777998U (en) | 2019-12-13 | 2019-12-13 | Parallel circulating water-cooled permanent magnet variable frequency screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777998U (en) |
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2019
- 2019-12-13 CN CN201922250373.5U patent/CN211777998U/en active Active
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