CN212253796U - Secondary heat exchange equipment of air compressor - Google Patents
Secondary heat exchange equipment of air compressor Download PDFInfo
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- CN212253796U CN212253796U CN202021370372.0U CN202021370372U CN212253796U CN 212253796 U CN212253796 U CN 212253796U CN 202021370372 U CN202021370372 U CN 202021370372U CN 212253796 U CN212253796 U CN 212253796U
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Abstract
The utility model discloses an air compressor machine secondary indirect heating equipment carries out twice heat transfer through two plate heat exchangers, increases the cooling tower simultaneously, guarantees the cooling effect of air compressor machine. The utility model uses pure water and tap water as cooling water through twice heat exchange, uses pure water to heat, uses tap water to supply hot water, and greatly improves the utilization of heat energy of the air compressor; in addition, pure water and tap water are used for two-stage cooling; the temperature of the water tank is about 50 ℃, so that the water tank greatly avoids scale, prolongs the service life and reduces the later maintenance cost.
Description
Technical Field
The utility model relates to an air compressor machine secondary indirect heating equipment.
Background
The air compressor is one of power devices with relatively large energy consumption, the input power of the general air compressor is partially changed into potential energy of compressed air, and other partial capacity is discharged to the air in the form of waste energy to be wasted. The waste heat energy is fully utilized, energy conservation and emission reduction are facilitated, the operation cost is reduced, the running state of the air compressor can be improved, the gas production is improved, and the power consumption cost of the air compressor is saved.
SUMMERY OF THE UTILITY MODEL
To the defect that prior art exists above, the utility model discloses a main aim at overcomes prior art's weak point, discloses an air compressor machine secondary heat transfer method, including following step:
s1, starting the air compressor, and performing the step S2 when the oil temperature of the air compressor is more than 70 ℃;
s2, starting the primary heat exchange device, and internally circulating the primary heat exchange device when the temperature of the water outlet side is less than or equal to 55 ℃; when the temperature of the water outlet side is higher than 55 ℃, a secondary heat exchange device is connected to perform the step S3;
s3, starting the secondary heat exchange device, and internally circulating the secondary heat exchange device when the temperature of the water outlet side is less than or equal to 50 ℃; when the temperature of the water outlet side is higher than 50 ℃, connecting a heat preservation device; the water in the heat preservation device is used by a user; when the temperature of water in the heat preservation device is less than or equal to 50 ℃, the primary heat exchange device is internally circulated.
Further, the step 3 also comprises that when the temperature of the water inlet side of the primary heat exchange device and the temperature of the water inlet side of the secondary heat exchange device are both less than or equal to 20 ℃, and the temperature of the water outlet side of the secondary heat exchange device is more than 50 ℃, the water of the secondary heat exchange device is connected to the heat preservation device; otherwise, the primary heat exchange device carries out internal circulation; when the temperature of the water inlet side of the primary heat exchange device or the temperature of the water inlet side of the secondary heat exchange device is more than 20 ℃, the secondary heat exchange device is connected to the condenser.
Further, in step S3, when the temperature in the heat preservation device is higher than 50 ℃, if the liquid level height exceeds the highest preset value, the secondary heat exchange device is connected to the condenser; if the liquid level in the heat preservation device is lower than the lowest preset value, closing a valve connected with the client; if the liquid level in the heat preservation device is between the lowest preset value and the highest preset value, a valve for linking the client side is opened; when the temperature in the heat preservation device is less than or equal to 50 ℃, the primary heat exchange device is not connected with the secondary heat exchange device.
A secondary heat exchange device of an air compressor comprises a monitoring pipeline, a primary heat exchange device, a secondary heat exchange device, a first plate heat exchanger and a second plate heat exchanger, wherein the air compressor is connected into the first plate heat exchanger through the monitoring pipeline, the primary heat exchange device is respectively connected with the first plate heat exchanger and the second plate heat exchanger, and the second plate heat exchanger is connected with the secondary heat exchange device; the primary heat exchange device is a pure water closed system, and the secondary heat exchange device is a tap water open system.
Further, the monitoring pipeline comprises a first temperature sensor, and the oil outlet side of the air compressor is sequentially connected with the first temperature sensor, the first plate-type heat exchanger and the oil inlet side of the air compressor.
Further, the primary heat exchange device comprises a second temperature sensor, a first three-way valve, a water purification device and a first water pump, the water outlet side of the first plate-type heat exchanger is sequentially connected with the second temperature sensor, the first three-way valve, the water purification device, the first water pump and the water inlet side of the first plate-type heat exchanger, the second plate-type heat exchanger is connected between the first three-way valve and the water purification device, and the first three-way valve is utilized to control whether the second plate-type heat exchanger is connected into the primary heat exchange device.
Further, the primary heat exchange device further comprises a third temperature sensor, and the third temperature sensor is arranged on the water inlet side of the first plate heat exchanger.
Further, the secondary heat exchange device comprises a fourth temperature sensor, a heat preservation device, a water storage device and a second water pump, the water storage device is connected with the water inlet side of the second plate-type heat exchanger through the second water pump, the heat preservation device is connected with the water outlet side of the second plate-type heat exchanger through the fourth temperature sensor, and the heat preservation device is connected with the client.
Further, secondary heat transfer device still includes fifth temperature sensor, cooling tower, second three-way valve, third three-way valve and level sensor, fifth temperature sensor sets up second plate heat exchanger's the side of intaking, second plate heat exchanger's play water side passes through the second three-way valve respectively with heat preservation device with the cooling tower is connected, utilizes the second three-way valve is in heat preservation device with switch between the cooling tower, heat preservation device, the cooling tower with the customer end passes through the third three-way valve and connects, utilizes the third three-way valve control heat preservation device with the customer end perhaps switch between the cooling tower, the cooling tower with water storage device connects, level sensor measures the liquid level height in the heat preservation device.
Further, the first plate heat exchanger and the second plate heat exchanger are brazed heat exchangers of type D118-20.
The utility model discloses the beneficial effect who gains:
the utility model uses pure water and tap water as cooling water through twice heat exchange, uses pure water to heat, uses tap water to supply hot water, and greatly improves the utilization of heat energy of the air compressor; in addition, pure water and tap water are used for two-stage cooling; the temperature of the water tank is about 50 ℃, so that the water tank greatly avoids scale, prolongs the service life and reduces the later maintenance cost.
Drawings
Fig. 1 is a flow chart of a secondary heat exchange method of an air compressor of the present invention;
fig. 2 is a schematic diagram of the secondary heat exchange device of the air compressor of the present invention;
the reference numbers are as follows:
1. the monitoring pipeline, 2, a heat exchange device, 3, a secondary heat exchange device, 4, a first plate heat exchanger, 5, a second plate heat exchanger, 6, a liquid level sensor, 7, an electric valve, 9, a filter 11, a first temperature sensor, 12, a second temperature sensor, 13, a third temperature sensor, 14, a fourth temperature sensor, 15, a fifth temperature sensor, 16, a sixth temperature sensor, 21, a first three-way valve, 22, a second three-way valve, 23, a third three-way valve, 31, a first water pump, 32, a second water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Definition, oil-out side: the oil outlet end of the air compressor; water outlet side: the water outlet end of the first plate heat exchanger or the second plate heat exchanger; the water inlet side is the water inlet end of the first plate heat exchanger or the second plate heat exchanger.
A secondary heat exchange method of an air compressor is shown in figure 1 and comprises the following steps:
s1, starting the air compressor, and performing the step S2 when the oil temperature of the air compressor is more than 70 ℃;
s2, starting the primary heat exchange device, and internally circulating the primary heat exchange device when the temperature of the water outlet side is less than or equal to 55 ℃; when the temperature of the water outlet side is higher than 55 ℃, a secondary heat exchange device is connected to perform the step S3;
s3, starting the secondary heat exchange device, and when the temperature of the water outlet side is less than or equal to 50 ℃, internally circulating the secondary heat exchange device (namely, the secondary heat exchange device is not connected, and the heat transfer is not carried out between the secondary heat exchange device and the second plate heat exchanger, so that the water temperature in the primary heat exchange device is increased); when the temperature of the water outlet side is higher than 50 ℃, connecting a heat preservation device; the water in the heat preservation device is used by a user; when the temperature of water in the heat preservation device is less than or equal to 50 ℃, the primary heat exchange device is internally circulated. When the temperature of the water inlet side of the primary heat exchange device and the temperature of the water inlet side of the secondary heat exchange device are both less than or equal to 20 ℃, and the temperature of the water outlet side of the secondary heat exchange device is higher than 50 ℃, water of the secondary heat exchange device is connected into the heat preservation device; otherwise, the primary heat exchange device carries out internal circulation; when the temperature of the water inlet side of the primary heat exchange device or the temperature of the water inlet side of the secondary heat exchange device is more than 20 ℃, the secondary heat exchange device is connected to the condenser. When the temperature in the heat preservation device is higher than 50 ℃, if the liquid level height exceeds the highest preset value, the secondary heat exchange device is connected to the condenser; if the liquid level in the heat preservation device is lower than the lowest preset value, closing a valve connected with the client; if the liquid level in the heat preservation device is between the lowest preset value and the highest preset value, a valve for linking the client side is opened; when the temperature in the heat preservation device is less than or equal to 50 ℃, the primary heat exchange device is not connected with the secondary heat exchange device.
The utility model also discloses an air compressor machine secondary heat transfer equipment, as shown in fig. 1-2, including monitoring pipeline 1, primary heat transfer device 2, secondary heat transfer device 3, first plate heat exchanger 4 and second plate heat exchanger 5, the air compressor machine inserts first plate heat exchanger 4 through monitoring pipeline 1, primary heat transfer device 2 is connected with first plate heat exchanger 4 and second plate heat exchanger 5 respectively, second plate heat exchanger 5 is connected with secondary heat transfer device 3; the primary heat exchange device 2 is a pure water closed system, and the secondary heat exchange device 3 is a tap water open system.
Monitoring pipeline 1 includes first temperature sensor 11, and the oil inlet side of first temperature sensor 11, first plate heat exchanger 4 and air compressor machine is connected gradually to the side of producing oil of air compressor machine. The temperature of the oil outlet side of the air compressor is monitored by using a first temperature sensor 11. Preferably, a temperature sensor is arranged on the oil inlet side of the air compressor, and the heat dissipation effect of the heat exchange device can be embodied by comparing the temperatures of the oil outlet side and the oil inlet side; the oil temperature can be better controlled. A pressure sensor can be additionally arranged to monitor the pressure in the pipeline, so that damage caused by overhigh pressure is prevented.
The primary heat exchange device 2 comprises a second temperature sensor 12, a first three-way valve 21, a water purification device and a first water pump 31, the water outlet side of the first plate type heat exchanger 4 is sequentially connected with the second temperature sensor 12, the first three-way valve 21, the water purification device, the first water pump 31 and the water inlet side of the first plate type heat exchanger 4, water in the water purification device is pumped into the second plate type heat exchanger 4 through the first water pump 31 to exchange heat with oil of an air compressor, the temperature of the water outlet side of the first plate type heat exchanger 4 is monitored through the second temperature sensor 12, and whether the secondary heat exchange device 3 is needed to carry out heat exchange cooling is judged. The second plate heat exchanger 5 is connected between the first three-way valve 21 and the pure water device, and whether the second plate heat exchanger 5 is connected in the primary heat exchange device 2 or not is controlled by the first three-way valve 21. When the temperature measured by the second temperature sensor 12 is higher than 55 ℃, the water outlet side of the first plate heat exchanger 4 is connected with the second plate heat exchanger 5 through the first three-way valve 21 to exchange heat with the secondary heat exchange device 3; conversely, the water outlet side of the first plate heat exchanger 4 is connected to the pure water unit via a first three-way valve 21. The pure water device is used for storing pure water so as to provide enough pure water for internal circulation. Wherein, the pure water can be let in the hot-water heating piece and carry out the heating, hot-water heating air conditioner carries out the heating.
The secondary heat exchange device 3 comprises a fourth temperature sensor 14, a heat preservation device, a water storage device and a second water pump 32, the water storage device is connected with the water inlet side of the second plate-type heat exchanger 5 through the second water pump 32, the heat preservation device is connected with the water outlet side of the second plate-type heat exchanger 5 through the fourth temperature sensor 14, and the heat preservation device is connected with the client. The heat preservation device is a heat preservation water tank and is used for storing hot water for users to use; for example, for bathing in a bathroom.
In the above embodiment, the secondary heat exchange device 3 further includes a fifth temperature sensor 15, a cooling tower, a second three-way valve 22, a third three-way valve 23 and a liquid level sensor 6, the fifth temperature sensor 15 is disposed on the water inlet side of the second plate heat exchanger 5, the water outlet side of the second plate heat exchanger 5 is connected to the heat preservation device and the cooling tower through the second three-way valve 23, the heat preservation device and the cooling tower are switched by using the second three-way valve 23, the heat preservation device, the cooling tower and the client are connected through the third three-way valve 23, the heat preservation device and the client or the cooling tower are switched by using the third three-way valve 23, the cooling tower is connected to the water storage device, and the liquid level sensor 6 measures the liquid level inside the. When the liquid level measured by the liquid level sensor 6 is higher than the preset height, the third three-way valve 23 is opened, and the water in the heat preservation device is discharged into the cooling tower.
In a preferred embodiment, a third temperature sensor 13 is further included, the third temperature sensor 13 being arranged on the water inlet side of the first plate heat exchanger 4, the temperature of the water inlet side of the first plate heat exchanger 4 being monitored. The fifth temperature sensor 15 is arranged on the water inlet side of the second plate heat exchanger 5 and monitors the water temperature on the water inlet side of the second plate heat exchanger 5. When the temperatures of the third temperature sensor 13 and the fifth temperature sensor 15 are both higher than 20 ℃, in order to ensure that the interior of the air compressor is always in a good working environment, the secondary heat exchange device 3 is connected to the cooling tower, and the cooling tower is utilized to cool the secondary heat exchange device 3 so as to promote the cooling of the air compressor by the primary heat exchange device 2.
In an embodiment the first plate heat exchanger 4 and the second plate heat exchanger 5 are brazed heat exchangers of type D118-20.
In one embodiment, a sixth temperature sensor 16 is further included, the sixth temperature sensor 16 monitors the temperature of the liquid in the thermal insulation device, and when the temperature is lower than 50 ℃, the third three-way valve 23 is opened to discharge part of the liquid in the thermal insulation device into the cooling tower, and meanwhile, water with higher temperature is supplemented through the second three-way valve 22 to increase the temperature of the water in the thermal insulation device.
In an embodiment, the electric valves 7 are disposed at the water inlet end and the water outlet end of the first water pump 31 and the second water pump 32, and when the first plate heat exchanger 4 and the second plate heat exchanger 5 do not work, the electric valves 7 are both in a closed state, so that water in the primary heat exchange device 2 and the secondary heat exchange device 3 does not circulate. Wherein, first heat transfer device 2 and secondary heat transfer device 3 can additionally parallelly connected two first water pumps 31 and the second water pump 32 of setting respectively to increase intraductal water pressure, avoid water pressure not enough, influence cooling and heat exchange. Preferably, the system also comprises two pressure sensors, and the two primary heat exchange devices 2 are used for respectively monitoring the pressure of the water inlet side and the pressure of the water outlet side of the first plate heat exchanger 4; similarly, two secondary heat exchange devices 3 are provided, and the water inlet side pressure and the water outlet side pressure of the second plate heat exchanger 5 are respectively monitored.
In one embodiment, the device further comprises a filter 9, wherein the filter 9 is respectively arranged on the water outlet side of the first plate type heat exchanger 4 connected into the primary heat exchange device 2 and the water outlet side of the second plate type heat stirrer 5 connected into the secondary heat exchange device 3. The filter 9 is used for filtering impurities in the water.
The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.
Claims (7)
1. The secondary heat exchange equipment of the air compressor is characterized by comprising a monitoring pipeline, a primary heat exchange device, a secondary heat exchange device, a first plate-type heat exchanger and a second plate-type heat exchanger, wherein the air compressor is connected into the first plate-type heat exchanger through the monitoring pipeline, the primary heat exchange device is respectively connected with the first plate-type heat exchanger and the second plate-type heat exchanger, and the second plate-type heat exchanger is connected with the secondary heat exchange device; the primary heat exchange device is a pure water closed system, and the secondary heat exchange device is a tap water open system.
2. The air compressor secondary heat exchange device according to claim 1, wherein the monitoring pipeline comprises a first temperature sensor, and an oil outlet side of the air compressor is sequentially connected with the first temperature sensor, the first plate heat exchanger and an oil inlet side of the air compressor.
3. The air compressor secondary heat exchange device according to claim 1, wherein the primary heat exchange device comprises a second temperature sensor, a first three-way valve, a water purification device and a first water pump, a water outlet side of the first plate heat exchanger is sequentially connected with the second temperature sensor, the first three-way valve, the water purification device, the first water pump and a water inlet side of the first plate heat exchanger, the second plate heat exchanger is connected between the first three-way valve and the water purification device, and the first three-way valve is used for controlling whether the second plate heat exchanger is connected into the primary heat exchange device or not.
4. The air compressor secondary heat exchange device according to claim 3, wherein the primary heat exchange device further comprises a third temperature sensor, and the third temperature sensor is arranged on the water inlet side of the first plate heat exchanger.
5. The air compressor secondary heat exchange device according to claim 1, wherein the secondary heat exchange device comprises a fourth temperature sensor, a heat preservation device, a water storage device and a second water pump, the water storage device is connected with the water inlet side of the second plate heat exchanger through the second water pump, the heat preservation device is connected with the water outlet side of the second plate heat exchanger through the fourth temperature sensor, and the heat preservation device is connected with the client.
6. The air compressor secondary heat exchange device as claimed in claim 5, wherein the secondary heat exchange device further comprises a fifth temperature sensor, a cooling tower, a second three-way valve, a third three-way valve and a liquid level sensor, the fifth temperature sensor is arranged at the water inlet side of the second plate heat exchanger, the water outlet side of the second plate heat exchanger is respectively connected with the heat preservation device and the cooling tower through the second three-way valve, and the second three-way valve is used for switching between the heat preservation device and the cooling tower, the heat preservation device, the cooling tower and the client are connected through a third three-way valve, the third three-way valve is used for controlling the heat preservation device to be switched with the client or the cooling tower, the cooling tower is connected with the water storage device, and the liquid level sensor measures the liquid level height in the heat preservation device.
7. The air compressor secondary heat exchange device as claimed in claim 1, wherein the first plate heat exchanger and the second plate heat exchanger are brazed heat exchangers of type D118-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370372.0U CN212253796U (en) | 2020-07-13 | 2020-07-13 | Secondary heat exchange equipment of air compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370372.0U CN212253796U (en) | 2020-07-13 | 2020-07-13 | Secondary heat exchange equipment of air compressor |
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| CN212253796U true CN212253796U (en) | 2020-12-29 |
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| CN202021370372.0U Active CN212253796U (en) | 2020-07-13 | 2020-07-13 | Secondary heat exchange equipment of air compressor |
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Denomination of utility model: A type of secondary heat exchange equipment for air compressors Effective date of registration: 20230815 Granted publication date: 20201229 Pledgee: Jiangsu Taicang Rural Commercial Bank Co.,Ltd. Liuhe Branch Pledgor: SUZHOU MEKEKASI AUTOMOBILE TECHNOLOGY CO.,LTD. Registration number: Y2023980052205 |