CN209145889U - A kind of afterheat recovery unit of air compressor - Google Patents
A kind of afterheat recovery unit of air compressor Download PDFInfo
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- CN209145889U CN209145889U CN201821892983.4U CN201821892983U CN209145889U CN 209145889 U CN209145889 U CN 209145889U CN 201821892983 U CN201821892983 U CN 201821892983U CN 209145889 U CN209145889 U CN 209145889U
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- air compressor
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- outlet
- waste heat
- recovery device
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Abstract
The utility model provides a kind of afterheat recovery unit of air compressor, for solving, apparatus cost in the prior art is expensive, regulation is fixed with oil instability caused by regulation inaccuracy not in time, is easy the technical issues of waste cooling water, comprising: oil circuit entrance, oil circuit outlet, heat exchanger, waterway inlet, water route outlet, electronic PID regulating valve, the first temperature sensor for adjusting recorder and being set to oil circuit outlet.The cooling oil temperature of cost, control accurate outflow afterheat recovery unit of air compressor can be reduced by implementing the technical solution of the utility model, realize the controllability in system water route under multicomputer state.
Description
Technical Field
The utility model relates to an air compressor machine field, in particular to air compressor machine waste heat recovery device.
Background
Screw rod air compressor unit heat recovery, as a common waste heat recovery device, extensively use in many mills: generally, high-temperature lubricating oil with the temperature of nearly 90 ℃ and heat exchange medium water are adopted for heat conduction to obtain recovered heat, but the operation protection of a screw air compressor unit is carried out, the temperature of the lubricating oil after heat exchange is required to be not lower than 70 ℃, and in the past, a mechanical temperature control three-way valve is added on an oil way to adjust the flow rate of the lubricating oil flowing through a heat exchanger and the flow rate of a bypass pipeline so as to achieve the purpose of controlling the return oil temperature. The flow rate on the cooling water side is not usually controlled, but is kept in a normally open mode, i.e., the amount of water flowing is not adjusted.
Secondly, in the market, the heat recovery control mostly adopts a PLC system to realize the acquisition and display of data such as temperature and the like, or adopts dial plate instruments such as a thermometer and a pressure gauge to display process parameters, the former is expensive, and the latter is practical but can not meet the remote automatic data management.
In the prior art, a mechanical temperature control valve is adopted, so that the control precision and the control response time are poor; when there are 2 or above heat recovery units, the cooling water route can reduce the recovery effect when wasting the water resource because being in normally opening.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses an air compressor machine waste heat recovery device, the technical scheme of the utility model is implemented like this:
the utility model provides an air compressor machine waste heat recovery device, includes: the device comprises an oil path inlet, an oil path outlet, a heat exchanger, a water path inlet, a water path outlet, an electric PID regulating valve, an adjusting recorder and a first temperature sensor arranged at the oil path outlet; the oil path inlet is connected with an air compressor cooling oil outlet, and the air compressor cooling oil with waste heat is input into the heat exchanger; the oil path outlet is connected with the cooling oil inlet of the air compressor, and the cooled cooling oil of the air compressor is input into the air compressor; the waterway inlet is connected with a cooling water source and used for inputting cooling water into the heat exchanger; the waterway outlet is connected with the heat utilization module, and the cooling water absorbing the waste heat is output to the heat utilization module for use; the electric PID regulating valve is arranged at the waterway inlet and used for controlling the flow of cooling water; the first temperature sensor measures the temperature of the cooling oil at the oil way outlet and sends the temperature to the adjusting recorder; the adjusting recorder is connected with the electric PID adjusting valve, and the opening degree of the electric PID adjusting valve is adjusted according to the data measured by the first temperature sensor.
Preferably, the air compressor waste heat recovery device comprises a second temperature sensor arranged at the inlet of the water channel; the second temperature sensor measures the temperature of the cooling water at the inlet of the water path and sends the temperature to the adjusting recorder; and the adjusting recorder adjusts the opening degree of the electric PID adjusting valve according to the data measured by the second temperature sensor.
Preferably, the air compressor waste heat recovery device comprises a third temperature sensor arranged at the outlet of the waterway; the third temperature sensor measures the temperature of the cooling water at the outlet of the waterway and sends the temperature to the adjusting recorder; and the adjusting recorder adjusts the opening degree of the electric PID adjusting valve according to the data measured by the third temperature sensor.
Preferably, the heat exchanger is a plate heat exchanger.
Preferably, the waterway inlet is provided with a waterway blowdown valve.
Preferably, the oil outlet is provided with a waterway blowdown valve.
Preferably, the waterway outlet is provided with an exhaust valve.
Preferably, the air compressor waste heat recovery device comprises a cooling oil bypass.
Preferably, the air compressor waste heat recovery device comprises an encapsulation shell, and the encapsulation shell encapsulates the air compressor waste heat recovery device in the encapsulation shell.
Preferably, the air compressor waste heat recovery device comprises a display, and the display is arranged on the packaging shell.
The technical scheme of the utility model can solve the technical problems of unstable oil temperature and easy cooling water waste caused by expensive device cost, untimely and inaccurate regulation and control in the prior art; according to the technical scheme of the utility model, the artificial intelligence adjusting recorder is adopted to replace the traditional PLC architecture, the cost is reduced, and the technical effect of accurate regulation and control is realized by acquiring the temperatures of a plurality of places of the heat exchanger and optimizing the algorithm; and the controllability of a system water channel under the state of multiple units is realized by closing part of the air compressor waste heat recovery devices when the air compressor is stopped through the regulation recorder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive laboriousness.
FIG. 1 is a PID flowchart of the inside of the apparatus according to an embodiment of the present invention;
FIG. 2 is an interior elevation view of an apparatus according to an embodiment of the present invention;
FIG. 3 is a side view of the interior of an apparatus according to an embodiment of the present invention;
FIG. 4 is a top view of the interior of an apparatus according to an embodiment of the present invention;
fig. 5 is a schematic view of the external shape of an apparatus according to an embodiment of the present invention.
In the above drawings, the reference numerals denote:
1-oil path inlet; 2-oil path outlet; 3-a heat exchanger; 4-a waterway inlet; 5-a waterway outlet; 6-electric PID regulating valve; 7-a first temperature sensor; 8-a second temperature sensor; 9-a third temperature sensor; 10-a waterway blowdown valve; 11-oil way blowdown valve; 12-a gas outlet valve; 13-cooling oil bypass; 14-a package housing; 15-display.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In a specific embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, an air compressor waste heat recovery device includes: the device comprises an oil path inlet 1, an oil path outlet 2, a heat exchanger 3, a water path inlet 4, a water path outlet 5, an electric PID regulating valve 6, a regulating recorder and a first temperature sensor 7 arranged at the oil path outlet 2; the oil path inlet 1 is connected with an air compressor cooling oil outlet, and the air compressor cooling oil with waste heat is input into the heat exchanger 3; the oil path outlet 2 is connected with an air compressor cooling oil inlet, and cooled air compressor cooling oil is input into the air compressor; the waterway inlet 4 is connected with a cooling water source and used for inputting cooling water into the heat exchanger 3; the waterway outlet 5 is connected with the heat utilization module and outputs the cooling water absorbing the waste heat to the heat utilization module for use; the electric PID regulating valve 6 is arranged at the waterway inlet 4 and used for controlling the flow of cooling water; the first temperature sensor 7 measures the temperature of the cooling oil at the oil path outlet 2 and sends the temperature to the adjusting recorder; the regulation recorder is connected with the electric PID regulating valve 6, and the opening degree of the electric PID regulating valve 6 is regulated according to the data measured by the first temperature sensor 7.
In the specific embodiment, a mature NHR-7400/7400R series liquid crystal four-way artificial intelligence adjusting recorder is adopted, when the temperature of the cooling oil at the oil way outlet 2 is detected to exceed a normal range, the opening degree of the electric PID adjusting valve 6 is adjusted through adjusting recording, data acquisition of the first temperature sensor 7 is achieved, meanwhile, accurate control over the electric PID adjusting valve 6 is achieved, and an adjusting instruction can be sent out in time. The traditional PLC architecture is replaced, and the standardization of a control system and the economy in the cost aspect are realized. The electric PID regulating valve 6 controls the flow of cooling water according to the running condition of the air compressor, so that the resource waste caused by the fact that the cooling water is normally opened is avoided; when a plurality of devices are in the same system, the regulation recorder can close the electric PID regulating valve 6 when the air compressor is stopped, thereby avoiding the situation that the hot cooling water in the redundant devices flows through heat dissipation, namely heat back suction, and saving water resources.
In a preferred embodiment, as shown in fig. 1, 2, 3 and 4, the air compressor residual heat recovery device comprises a second temperature sensor 8 arranged at the waterway inlet 4; the second temperature sensor 8 measures the temperature of the cooling water at the waterway inlet 4 and sends the temperature to the regulation recorder; the adjusting recorder adjusts the opening degree of the electric PID adjusting valve 6 according to the data measured by the second temperature sensor 8.
When the device is in different environments, the cooling water conditions are different, and the input temperature of the cooling water can affect the heat absorption effect of the device; the regulation record appearance is according to the data that second temperature sensor 8 surveyed, adjusts the aperture of electronic PID governing valve 6, through adjusting cooling water flow, lets the device keep stable heat absorption effect when the cooling water condition is different, improves the universality and the reliability of device.
In a preferred embodiment, as shown in fig. 1, 2, 3 and 4, the air compressor residual heat recovery device comprises a third temperature sensor 9 arranged at the waterway outlet 5; the third temperature sensor 9 measures the temperature of the cooling water at the waterway outlet 5 and sends the temperature to the regulation recorder; the regulating recorder regulates the opening of the electric PID regulating valve 6 according to the data measured by the third temperature sensor 9.
The adjusting recorder obtains the temperature of three positions of the oil path outlet 2, the water path inlet 4 and the water path outlet 5, and an algorithm is optimized to ensure the accurate control of the cooling water flow and the output oil temperature.
In a preferred embodiment, as shown in fig. 1, 2, 3 and 4, the heat exchanger 3 is a plate heat exchanger.
The heat exchanger 3 adopts a plate type heat exchanger, can select frame type or brazing type and the like, has the advantages of small floor area, convenient manufacture, low price, high heat transfer coefficient and the like, and reduces the whole manufacturing cost of the device; meanwhile, the plate heat exchanger is easy to change the heat exchange area, the influence of the transformation process on other parts of the device is small, the standardized design of products is convenient to realize, and the plate heat exchanger is suitable for compressors with various operating parameters.
In a preferred embodiment, the waterway inlet 4 is provided with a waterway blowdown valve 10, as shown in fig. 1 and 3.
In a preferred embodiment, as shown in fig. 1, 2, 3 and 5, the oil outlet 2 is provided with an oil blow-down valve 11.
When the device is shut down, the water way drain valve 10 and the oil way drain valve 11 are opened, so that scale in a water way of the heat exchanger 3 and dirt in an oil way of the heat exchanger 3 can be discharged, and the service life and the heat exchange efficiency of the device are ensured.
In a preferred embodiment, the waterway outlet 5 is provided with a discharge valve 12, as shown in fig. 1, 3 and 4.
The exhaust valve 12 is opened, so that air in the cooling water pipeline of the heat exchanger 3 can be exhausted, and the heat exchange efficiency is ensured.
In a preferred embodiment, as shown in fig. 1, 2 and 3, the air compressor residual heat recovery device comprises a cooling oil bypass 13.
When the temperature of the cooling oil flowing out of the air compressor is low, partial or all cooling oil can be selected to directly flow back to the air compressor from the cooling oil bypass 13, the temperature of the cooling oil flowing into the air compressor is prevented from being too low, and the service life of the air compressor is shortened.
In a preferred embodiment, as shown in fig. 5, the air compressor waste heat recovery device comprises a packaging shell 14, and the packaging shell encapsulates the air compressor waste heat recovery device in the packaging shell.
During the transportation, installation and use processes, the packaging shell 14 plays a role in protecting the waste heat recovery device of the waste air compressor integrally. The packaged air compressor waste heat recovery device can be debugged and debugged in advance before leaving a factory, the difficulty of field installation is simplified, the labor and time cost required by debugging and adjusting after installation is reduced, and the investment of an adult is reduced.
In a preferred embodiment, as shown in fig. 5, the air compressor waste heat recovery device comprises a display 15, and the display is arranged on the packaging shell 14.
Display 15 shows air compressor machine waste heat recovery device's running state, coolant oil output temperature, cooling water input and output temperature in real time, and accessible display 15 sets up the regulation record appearance simultaneously, realizes that air compressor machine waste heat recovery device is suitable for the air compressor machine of different kinds, operational aspect.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. The utility model provides an air compressor machine waste heat recovery device which characterized in that includes: the device comprises an oil path inlet, an oil path outlet, a heat exchanger, a water path inlet, a water path outlet, an electric PID regulating valve, an adjusting recorder and a first temperature sensor arranged at the oil path outlet; wherein,
the oil path inlet is connected with the cooling oil outlet of the air compressor, and the cooling oil of the air compressor with waste heat is input into the heat exchanger;
the oil path outlet is connected with the cooling oil inlet of the air compressor, and the cooled cooling oil of the air compressor is input into the air compressor;
the waterway inlet is connected with a cooling water source and used for inputting cooling water into the heat exchanger;
the waterway outlet is connected with the heat utilization module, and the cooling water absorbing the waste heat is output to the heat utilization module for use;
the electric PID regulating valve is arranged at the waterway inlet and used for controlling the flow of cooling water;
the first temperature sensor measures the temperature of the cooling oil at the oil way outlet and sends the temperature to the adjusting recorder;
the adjusting recorder is connected with the electric PID adjusting valve, and the opening degree of the electric PID adjusting valve is adjusted according to the data measured by the first temperature sensor.
2. The air compressor waste heat recovery device according to claim 1, further comprising a second temperature sensor disposed at the inlet of the waterway; the second temperature sensor measures the temperature of the cooling water at the inlet of the water path and sends the temperature to the adjusting recorder; and the adjusting recorder adjusts the opening degree of the electric PID adjusting valve according to the data measured by the second temperature sensor.
3. The air compressor waste heat recovery device according to claim 1, further comprising a third temperature sensor disposed at the outlet of the waterway; the third temperature sensor measures the temperature of the cooling water at the outlet of the waterway and sends the temperature to the adjusting recorder; and the adjusting recorder adjusts the opening degree of the electric PID adjusting valve according to the data measured by the third temperature sensor.
4. The air compressor waste heat recovery device according to any one of claims 1 to 3, wherein the heat exchanger is a plate heat exchanger.
5. The air compressor waste heat recovery device according to claim 4, wherein the waterway inlet is provided with a waterway blowdown valve.
6. The air compressor waste heat recovery device according to claim 4, wherein the oil outlet is provided with an oil drain valve.
7. The air compressor waste heat recovery device according to claim 4, wherein the waterway outlet is provided with an exhaust valve.
8. The air compressor waste heat recovery device of claim 4, further comprising a cooling oil bypass.
9. The air compressor waste heat recovery device according to claim 4, further comprising an encapsulation housing, wherein the encapsulation housing encapsulates the air compressor waste heat recovery device inside the encapsulation housing.
10. The air compressor waste heat recovery device of claim 9, further comprising a display, wherein the display is disposed on the package housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892983.4U CN209145889U (en) | 2018-11-16 | 2018-11-16 | A kind of afterheat recovery unit of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892983.4U CN209145889U (en) | 2018-11-16 | 2018-11-16 | A kind of afterheat recovery unit of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145889U true CN209145889U (en) | 2019-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821892983.4U Expired - Fee Related CN209145889U (en) | 2018-11-16 | 2018-11-16 | A kind of afterheat recovery unit of air compressor |
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| Country | Link |
|---|---|
| CN (1) | CN209145889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879292A (en) * | 2021-03-18 | 2021-06-01 | 广东肯富来泵业股份有限公司 | Liquid ring pump working liquid temperature control system and control method thereof |
| CN119245392A (en) * | 2024-12-06 | 2025-01-03 | 庐江县凯迪绿色能源开发有限公司 | An energy-saving heat exchange device for industrial wastewater discharge |
-
2018
- 2018-11-16 CN CN201821892983.4U patent/CN209145889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879292A (en) * | 2021-03-18 | 2021-06-01 | 广东肯富来泵业股份有限公司 | Liquid ring pump working liquid temperature control system and control method thereof |
| CN119245392A (en) * | 2024-12-06 | 2025-01-03 | 庐江县凯迪绿色能源开发有限公司 | An energy-saving heat exchange device for industrial wastewater discharge |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20211116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |