CN112524670A - Energy-saving system and method for heating based on air compressor waste heat recovery transformation - Google Patents
Energy-saving system and method for heating based on air compressor waste heat recovery transformation Download PDFInfo
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- CN112524670A CN112524670A CN202011367809.XA CN202011367809A CN112524670A CN 112524670 A CN112524670 A CN 112524670A CN 202011367809 A CN202011367809 A CN 202011367809A CN 112524670 A CN112524670 A CN 112524670A
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- water tank
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000009466 transformation Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 196
- 239000003921 oil Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000010705 motor oil Substances 0.000 claims description 30
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000011897 real-time detection Methods 0.000 claims description 6
- 239000008236 heating water Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000010725 compressor oil Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001502 supplementing effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses an energy-saving system and method for heating based on air compressor waste heat recovery transformation, and an energy-saving method for heating based on air compressor waste heat recovery transformation comprises the following steps of S1: the heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data. The invention discloses a recovery energy-saving system and a recovery energy-saving method for heating based on air compressor waste heat reformation, which replace the original cooling system of an air compressor by a heat exchange unit, replace the heat energy of high-temperature air compressor oil into hot water for heating application such as production or domestic hot water and the like, fully utilize the heat generated by the air compressor, achieve the energy-saving effect, protect the air compressor to a certain extent, detect the water temperature, the oil temperature and the water tank liquid level in real time, and have the advantages of temperature control, automatic water supplementing, circulating water feeding and water returning and the like.
Description
Technical Field
The invention belongs to the technical field of waste heat recovery of air compressors, and particularly relates to an energy-saving system for heating based on waste heat recovery of an air compressor and an energy-saving method for heating based on waste heat recovery of an air compressor.
Background
An air compressor is called an air compressor for short, and is a device for converting mechanical energy of a motor into gas pressure by compressing the volume of gas and increasing the density of gas molecules in unit volume so as to improve the pressure of compressed air. The high-temperature heat generated by the high-speed rotation of the screw of the air compressor is also subjected to friction heating, the generated high-temperature heat is mixed by adding lubricating oil of the air compressor to form oil/gas steam which is discharged out of the machine body, the heat of the high-temperature oil/gas flow is equal to 3/4 of the input power of the air compressor, the temperature of the high-temperature oil/gas flow is usually 80-100 ℃, the heat energy is abandoned to be discharged into the atmosphere in an endless mode due to the requirement of the operation temperature of the machine, namely the heat dissipation system of the air compressor is used for meeting the requirement of the operation temperature. In the prior art, a water cooling air compressor is generally used for cooling, and water is heated and then used for producing hot water required by life. But the temperature of hot water obtained by heating is difficult to control, so that heat energy is wasted in a water using link, and the energy utilization efficiency is not high.
When the air compressor runs, electric energy is converted into compression potential energy, when an object is compressed, heat can be generated due to the extrusion of molecules, 70% -90% of electric energy consumed by a motor of the object is converted into heat energy, and therefore energy waste can be caused.
Therefore, the above problems are further improved.
Disclosure of Invention
The invention mainly aims to provide an energy-saving system and a method for heating based on air compressor waste heat recovery transformation, wherein a heat exchange unit replaces an original cooling system of an air compressor, and high-temperature air compressor oil heat energy is replaced by hot water for heating application such as production or domestic hot water, so that the heat generated by the air compressor is fully utilized to achieve an energy-saving effect, the air compressor is protected to a certain extent, the water temperature, the oil temperature and the liquid level of a water tank are detected in real time, and the energy-saving system has the advantages of temperature control, automatic water supplementing, circulating water feeding and returning and the like.
In order to achieve the purpose, the invention provides an energy-saving method for heating based on the waste heat recovery and transformation of an air compressor, which comprises the following steps:
step S1: heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
step S2: the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
step S3: the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
As a further preferable embodiment of the above technical means, step S1 is specifically implemented as the following steps:
step S1.1: the air compressor separates compressed air and engine oil through an oil-gas separator and respectively performs compressed air treatment and engine oil treatment;
step S1.2: a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
step S1.3: and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
As a further preferred embodiment of the above technical solution, step S1.1 is specifically implemented as the following steps:
step S1.1: the separated compressed air is discharged through an air cooler;
step S1.2: the separated high-temperature engine oil (most) enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
step S1.3: the separated high-temperature engine oil (small) returns to the air compressor through the temperature control valve and the filter in sequence.
As a further preferable embodiment of the above technical means, step S2 is specifically implemented as the following steps:
step S2.1: the water outlet pipe of the primary heat exchanger is connected with the water inlet pipe of the secondary heat exchanger;
step S2.2: a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
step S2.3: and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
As a further preferable embodiment of the above technical means, step S3 is specifically implemented as the following steps:
step S3.1: an external circulating pump is arranged between the water tank and the secondary heat exchanger;
step S3.2: the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
step S3.3: install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
In order to achieve the above object, the present invention further provides an energy saving system for heating based on air compressor waste heat recovery reconstruction, including an air compressor, a heat exchanger unit and a water tank, wherein the heat exchanger unit exchanges heat with heat generated by the air compressor to heat the water tank, wherein:
heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
As a further preferable technical solution of the above technical solution, the air compressor separates compressed air and engine oil through an oil-gas separator and performs compressed air treatment and engine oil treatment, respectively;
a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
As a further preferable mode of the above mode, the separated compressed air is discharged through an air cooler;
the separated high-temperature engine oil (most) enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
the separated high-temperature engine oil (small) returns to the air compressor through the temperature control valve and the filter in sequence.
As a further preferred technical solution of the above technical solution, the water outlet pipe of the primary heat exchanger is connected with the water inlet pipe of the secondary heat exchanger;
a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
As a further preferable technical scheme of the above technical scheme, an external circulating pump is installed between the water tank and the secondary heat exchanger;
the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
In the preferred embodiment of the present invention, those skilled in the art should note that the air compressor, the water tank, and the like according to the present invention can be regarded as the prior art.
PREFERRED EMBODIMENTS
The invention discloses an energy-saving method for heating based on waste heat recovery and transformation of an air compressor, which comprises the following steps:
step S1: heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
step S2: the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
step S3: the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
Specifically, step S1 is implemented as the following steps:
step S1.1: the air compressor separates compressed air and engine oil through an oil-gas separator and respectively performs compressed air treatment and engine oil treatment;
step S1.2: a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
step S1.3: and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
More specifically, step S1.1 is embodied as the following steps:
step S1.1: the separated compressed air is discharged through an air cooler;
step S1.2: the separated high-temperature engine oil (most) enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
step S1.3: the separated high-temperature engine oil (small) returns to the air compressor through the temperature control valve and the filter in sequence.
Further, step S2 is specifically implemented as the following steps:
step S2.1: the water outlet pipe of the primary heat exchanger is connected with the water inlet pipe of the secondary heat exchanger;
step S2.2: a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
step S2.3: and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
Further, step S3 is implemented as the following steps:
step S3.1: an external circulating pump is arranged between the water tank and the secondary heat exchanger;
step S3.2: the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
step S3.3: install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
The invention also discloses an energy-saving system for heating based on the air compressor waste heat recovery transformation, which comprises an air compressor, a heat exchange unit and a water tank, wherein the heat exchange unit exchanges heat with heat generated by the air compressor so as to heat the water tank, wherein:
heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
Specifically, the air compressor separates compressed air and engine oil through an oil-gas separator and respectively performs compressed air treatment and engine oil treatment;
a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
More specifically, the separated compressed air is discharged through an air cooler;
the separated high-temperature engine oil (most) enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
the separated high-temperature engine oil (small) returns to the air compressor through the temperature control valve and the filter in sequence.
Furthermore, a water outlet pipe of the primary heat exchanger is connected with a water inlet pipe of the secondary heat exchanger;
a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
Furthermore, an external circulating pump is arranged between the water tank and the secondary heat exchanger;
the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
It should be noted that the technical features of the air compressor, the water tank and the like related to the present patent application should be regarded as the prior art, and the specific structure, the operation principle, the control mode and the spatial arrangement mode of the technical features may be conventional choices in the field, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.
It will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. An energy-saving method for heating based on air compressor waste heat recovery transformation is characterized by comprising the following steps:
step S1: heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
step S2: the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
step S3: the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
2. The energy-saving method for heating based on air compressor waste heat recovery transformation as claimed in claim 1, wherein the step S1 is implemented as the following steps:
step S1.1: the air compressor separates compressed air and engine oil through an oil-gas separator and respectively performs compressed air treatment and engine oil treatment;
step S1.2: a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
step S1.3: and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
3. The energy-saving method for heating based on air compressor waste heat recovery transformation as claimed in claim 2, wherein the step S1.1 is implemented as the following steps:
step S1.1: the separated compressed air is discharged through an air cooler;
step S1.2: the separated high-temperature engine oil enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
step S1.3: and the separated high-temperature engine oil part returns to the air compressor through the temperature control valve and the filter in sequence.
4. The energy-saving method for heating based on air compressor waste heat recovery transformation as claimed in claim 3, wherein the step S2 is implemented by the following steps:
step S2.1: the water outlet pipe of the primary heat exchanger is connected with the water inlet pipe of the secondary heat exchanger;
step S2.2: a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
step S2.3: and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
5. The energy-saving method for heating based on air compressor waste heat recovery transformation as claimed in claim 4, wherein the step S3 is implemented by the following steps:
step S3.1: an external circulating pump is arranged between the water tank and the secondary heat exchanger;
step S3.2: the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
step S3.3: install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
6. The utility model provides an energy-saving system for heating based on air compressor machine waste heat recovery transformation, its characterized in that, including air compressor machine, heat exchanger group and water tank, thereby heat exchange is carried out with the heat that the air compressor machine produced to the heat exchanger group and the heating water tank, wherein:
heat generated by the operation of the air compressor is subjected to oil-water heat exchange through a primary heat exchanger of the heat exchange unit to obtain primary heat exchange water, and the state of the oil-water heat exchange is detected in real time to form primary heat exchange data;
the first heat exchanger carries out water-water heat exchange on the obtained primary heat exchange water through a secondary heat exchanger of the heat exchange unit to obtain secondary heat exchange water, and the state of the water-water heat exchange is detected in real time through a regulating valve and an internal circulating pump which are arranged between the primary heat exchanger and the secondary heat exchanger to form secondary heat exchange data;
the second heat exchanger carries out heat exchange water-water heat exchange on the obtained secondary heat exchange water through the water tank so as to obtain tertiary heat exchange water, and detects the state of water-water heat exchange in real time through a thermometer and a first liquid level meter which are installed on the water tank so as to form water tank heat exchange data.
7. The energy-saving system for heating based on the waste heat recovery of the air compressor as claimed in claim 6,
the air compressor separates compressed air and engine oil through an oil-gas separator and respectively performs compressed air treatment and engine oil treatment;
a thermometer arranged on a machine head of the air compressor detects the temperature of the machine head in real time to form machine head temperature data;
and an oil return temperature and an oil inlet temperature are detected in real time by an oil return thermometer and an oil inlet thermometer which are arranged between the air compressor and the primary heat exchanger so as to form oil return temperature data and oil inlet temperature data.
8. The energy-saving system reconstructed for heating based on waste heat recovery of the air compressor as claimed in claim 7,
the separated compressed air is discharged through an air cooler;
the separated high-temperature engine oil enters a primary heat exchanger for oil-water heat exchange, and the engine oil subjected to oil-water heat exchange returns to the air compressor through an oil cooler and a filter;
and the separated high-temperature engine oil part returns to the air compressor through the temperature control valve and the filter in sequence.
9. The energy-saving system for heating based on the waste heat recovery of the air compressor as claimed in claim 8,
the water outlet pipe of the primary heat exchanger is connected with the water inlet pipe of the secondary heat exchanger;
a water outlet pipe of the secondary heat exchanger is connected with a water inlet pipe of the primary heat exchanger after sequentially passing through the internal circulating pump and the regulating valve;
and one end of the internal circulation pump, which is far away from the secondary heat exchanger, is connected with a second liquid level meter.
10. The energy-saving system for heating based on the waste heat recovery of the air compressor as claimed in claim 9,
an external circulating pump is arranged between the water tank and the secondary heat exchanger;
the thermometer arranged on the water tank detects the temperature of the water tank in real time, adjusts and feeds back the temperature of the water tank by setting the temperature of the water tank, and adjusts the external circulating pump, the adjusting valve and the internal circulating pump to enable the water temperature of the water tank to reach the set temperature;
install in the liquid level of the first level gauge real-time detection water tank of water tank to adjust the feedback through the liquid level of setting for the water tank and the temperature of water tank, make the temperature of water tank reach the liquid level and the temperature of setting for through adjusting outer circulating pump, governing valve and interior circulating pump.
Priority Applications (1)
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Cited By (1)
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| CN114517781A (en) * | 2022-02-23 | 2022-05-20 | 浙江先博节能科技有限公司 | Multi-heat-source linkage type air compressor unit |
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Application publication date: 20210319 |