CN113154677A - High-temperature heating medium oil furnace - Google Patents
High-temperature heating medium oil furnace Download PDFInfo
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- CN113154677A CN113154677A CN202011628877.7A CN202011628877A CN113154677A CN 113154677 A CN113154677 A CN 113154677A CN 202011628877 A CN202011628877 A CN 202011628877A CN 113154677 A CN113154677 A CN 113154677A
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- Prior art keywords
- refrigerant
- flow path
- temperature
- medium oil
- heating medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
- F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
- F24H7/0433—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a high-temperature heating medium oil furnace, which comprises a controller; a refrigerant circulation flow path; a heater; the heat exchanger is connected with the refrigerant circulation flow path in parallel and comprises a refrigerant inflow pipe and a refrigerant outflow pipe, and a proportional three-way valve is arranged at the joint of the refrigerant inflow pipe and the refrigerant circulation flow path; the pressure relief device comprises a gas collecting cylinder and an expansion tank; the refrigerant driving device comprises a first pump and a second pump which are arranged in parallel. Compared with the prior art, the high-temperature heating medium oil furnace realizes the quick supply of the refrigerant through the first pump and the second pump which are arranged in parallel, quickly heats the refrigerant through the heater, and finally adjusts the proportion of the refrigerant flowing through the heat exchanger through the proportional three-way valve to realize the quick and accurate temperature adjustment of the refrigerant; and the safety and the stability of the high-temperature heating medium oil furnace are greatly ensured.
Description
Technical Field
The invention relates to the technical field of temperature control equipment, in particular to a high-temperature heating medium oil furnace.
Background
The electric heating organic heat carrier furnace is also called as a high-temperature heat carrier oil furnace, is a novel, safe, efficient and energy-saving special industrial furnace which can provide high-temperature heat energy at low pressure, is a direct-current special industrial furnace which takes electricity as a heat source and heat-conducting oil as a heat carrier, utilizes a circulating oil pump to force liquid phase circulation, conveys the heat energy to heat equipment and then returns to heat again, and the steps are repeated in this way, so that the continuous transfer of heat is realized, the temperature of a heated object is increased, and the technological requirement of heating is met; however, the existing high-temperature heat medium oil furnace has the defects of slow temperature regulation rate of heat transfer oil, inaccurate temperature regulation, poor safety performance and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-temperature heating medium oil furnace.
The technical scheme adopted by the invention is as follows: a high temperature heating medium oil furnace comprising: a refrigerant circulation flow path communicated with the heat utilization equipment to form a loop; a heater provided on the refrigerant circulation flow path; the heat exchanger is arranged on a refrigerant circulating flow path between the heater and the heat utilization equipment and used for adjusting the temperature of the refrigerant, the heat exchanger is connected with the refrigerant circulating flow path in parallel, the heat exchanger comprises a refrigerant inflow pipe and a refrigerant outflow pipe which are communicated with the refrigerant circulating flow path, and a proportional three-way valve is arranged at the joint of the refrigerant inflow pipe and the refrigerant circulating flow path; a pressure relief device arranged on the refrigerant outflow side of the heat utilization equipment on the refrigerant circulation flow path; and the refrigerant driving device is arranged on a refrigerant circulating flow path between the pressure relief device and the heater and comprises a first pump and a second pump which are arranged in parallel.
The refrigerant compressor further comprises a controller, wherein the controller is electrically connected with the heater, the refrigerant driving device and the pressure relief device.
Further, a temperature detection device for detecting the high-temperature heat medium oil furnace is arranged on the refrigerant circulation flow path, the temperature detection device is electrically connected with the controller, and when the temperature of the high-temperature heat medium oil furnace reaches 120 ℃, the controller controls the pressure relief device to relieve the pressure of the refrigerant circulation flow path.
Further, the refrigerant circulation flow path includes a refrigerant outlet for providing the refrigerant for the heat consuming device and a refrigerant inlet for allowing the refrigerant of the heat consuming device to flow out, and the temperature detection device includes: the first temperature sensor is arranged at the refrigerant outlet, the second temperature sensor is arranged at the refrigerant inlet, and the third temperature sensor is arranged on the heater.
Further, the pressure relief device comprises a gas collecting cylinder arranged on the refrigerant circulation flow path and an expansion tank arranged above the gas collecting cylinder and communicated with the gas collecting cylinder, wherein the expansion tank is provided with a liquid outlet, an air outlet and a pressure relief opening, and the liquid outlet, the air outlet and the pressure relief opening are respectively provided with a switch device electrically connected with the controller so as to control the opening or closing of the liquid outlet, the air outlet and the pressure relief opening; and the expansion tank is also provided with an oil filling port, a protective gas inlet, a liquid level detection device and a pressure detection device.
Furthermore, the gas collecting cylinder comprises a refrigerant outflow side communicated with the refrigerant circulating flow path, the high-temperature hot medium oil furnace further comprises a sampling channel communicated with the refrigerant outflow side, and a cooler and a switch valve are arranged on the sampling channel.
Furthermore, the high-temperature heat medium oil furnace also comprises the oil leakage path which is communicated between the pipeline where the refrigerant outlet is positioned and the pipeline where the refrigerant inlet is positioned so that the refrigerant flowing out of the heat using equipment flows back to the refrigerant outlet again.
Further, the high-temperature heating medium oil furnace further comprises a cooling water inlet and a cooling water outlet, the heat exchanger, the first pump and the second pump are respectively provided with a water inlet and a water outlet, the water inlet is communicated with the cooling water inlet, and the water outlet is communicated with the cooling water outlet.
Compared with the prior art, the high-temperature heating medium oil furnace realizes the quick supply of the refrigerant through the first pump and the second pump which are arranged in parallel, quickly heats the refrigerant through the heater, and finally adjusts the proportion of the refrigerant flowing through the heat exchanger through the proportional three-way valve to realize the quick and accurate temperature adjustment of the refrigerant; and the safety and the stability of the high-temperature heating medium oil furnace are greatly ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a system structure of a high-temperature heating medium oil furnace according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a high-temperature heat medium oil furnace, as shown in fig. 1, a system of the high-temperature heat medium oil furnace in the application mainly comprises: the heat utilization equipment 1 comprises a refrigerant circulation flow path, equipment units of a refrigerant circulation flow path serial connection system and the heat utilization equipment 1, wherein the refrigerant circulation flow path comprises a refrigerant inlet 11 and a refrigerant outlet 12 which are connected with the heat utilization equipment 1, the refrigerant in the refrigerant circulation flow path flows into the heat utilization equipment 1 from the refrigerant outlet 12 to provide heat for the heat utilization equipment, and the refrigerant flowing through the heat utilization equipment 1 flows back to the refrigerant circulation flow path from the refrigerant inlet 11.
Wherein each equipment unit includes: the heater 2 is arranged on the refrigerant circulating flow path, and the heater 2 is used for heating the refrigerant; the heat exchanger 3 is arranged on a refrigerant circulating path from the heater 2 to the heat utilization equipment 1 in the refrigerant flowing direction, so that the temperature of the refrigerant flowing into the heat utilization equipment 1 can be adjusted, and the temperature of the refrigerant is mainly reduced by exchanging heat between cooling water and the refrigerant in the heat exchanger 3; the pressure relief device is arranged on the refrigerant outflow side of the heat utilization equipment 1 on the refrigerant circulation flow path, namely close to the refrigerant inlet 11 of the refrigerant circulation flow path, and is mainly used for relieving pressure and exhausting gas of the system to ensure the safety performance of the system; and the refrigerant driving device is arranged on a refrigerant circulating path between the pressure relief device and the heater 2 and provides a power source for the refrigerant.
Specifically, the heat exchanger 3 is disposed in parallel on the refrigerant circulation path, one end of the heat exchanger 3 is provided with a refrigerant inflow pipe 31 communicating with the refrigerant circulation path, the other end is provided with a refrigerant outflow pipe 32 communicating with the refrigerant circulation path, a proportional three-way valve 13 is provided at the junction of the refrigerant inflow pipe 31 and the refrigerant circulation flow path, the proportional three-way valve 13 is a pneumatic proportional three-way valve, which is connected with an air source inlet and controls the switching of the pneumatic proportional three-way valve by introducing air, through the arrangement, the proportional three-way valve 13 is used as a flow divider, it comprises two outflow paths, one outflow path exchanges heat through a heat exchanger 3, the other outflow path does not exchange heat through the heat exchanger 3, the proportion of the refrigerants passing through the two outflow paths is adjusted, so that the refrigerants with different temperatures passing through the two outflow paths are mixed in a certain proportion, and the aim of accurately controlling the temperature of the refrigerant flowing into the heat utilization equipment 1 is fulfilled; meanwhile, the valve body of the pneumatic proportional three-way regulating valve has the advantages of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, accurate flow characteristic, convenient maintenance and the like, so that the system can control and regulate the temperature more accurately; in addition, compared with the conventional temperature regulation mode, the leakage amount of the refrigerant can be reduced, and the temperature can be accurately regulated by regulating the amount of the refrigerant of each outflow channel.
Further, the pressure relief device mainly includes a gas collecting cylinder 41 and an expansion tank 42 disposed above the gas collecting cylinder 41, the gas collecting cylinder 41 is disposed on the refrigerant circulation path, and is specifically located on the refrigerant outflow side of the heat utilization equipment 1 on the refrigerant circulation path, so that the refrigerant flowing out of the heat utilization equipment 1 is subjected to gas-liquid separation in the gas collecting cylinder 41, and the gaseous refrigerant flows into the expansion tank 42 and is collected.
The expansion tank 42 is provided with a liquid outlet 421, an exhaust port 422, a pressure relief port 423, an oil filling port 424, a protective gas inlet 425, a liquid level detection device and a pressure detection device, wherein the liquid outlet 421 is arranged at the lowest end of the expansion tank 42, and when the liquid level detection device detects that the liquid level in the expansion tank 42 is high, the liquid outlet 421 is opened to discharge liquid; under normal conditions, a safety valve is arranged on a pipeline for communicating the pressure relief opening 423 with the expansion tank 42, the safety valve is automatically opened or closed to maintain the pressure stability of the whole system, when the pressure detection device detects that the system pressure is overlarge, the pressure relief opening 423 cannot ensure the pressure stability, and the exhaust opening 422 is opened to exhaust air to further maintain the pressure stability; the shielding gas inlet 425 is used to supplement nitrogen as a shielding gas to prevent explosion. The safety and the stability of the whole system are ensured through the arrangement.
The gas collecting cylinder 41 further comprises a refrigerant outflow side communicated with the refrigerant circulation flow path, the refrigerant in the gas collecting cylinder 41 flows out from the refrigerant outflow side, the high-temperature heat medium oil furnace further comprises a sampling channel 5, the sampling channel 5 is communicated with the refrigerant outflow side of the gas collecting cylinder 41 and used for extracting part of the refrigerant to perform sampling detection, and a stop valve 51, a cooler 52 and a ball valve 53 are sequentially arranged on a pipeline communicated from the gas collecting cylinder 41 to the sampling channel 5 so as to ensure the safety during the refrigerant sampling.
Further, the system also comprises a controller 6, wherein the controller 6 is electrically connected with the heater, the refrigerant driving device and the pressure relief device to control the operation of each equipment unit; and the temperature detection device that is equipped with on refrigerant circulation flow path and detects high temperature heat medium oil stove, temperature detection device includes: the first temperature sensor 121 arranged at the refrigerant outlet 12, the second temperature sensor 111 arranged at the refrigerant inlet 11 and the third temperature sensor 21 arranged on the heater 2, wherein the first temperature sensor 121, the second temperature sensor 111 and the third temperature sensor 21 are all electrically connected with the controller 6, when the temperature sensors 121 detect that the temperature of any high-temperature hot oil furnace reaches 120 ℃, the controller controls the pressure relief device to relieve the pressure of the refrigerant circulation flow path, and particularly controls the opening of the exhaust port 422 through a valve to relieve the pressure of the system; meanwhile, the controller 6 can also adjust the power of the heater 2 according to the temperature of the refrigerant detected by the real-time temperature detection device, so that the accurate control of the temperature is ensured.
In addition, the controller 6 in the application also comprises a 4-20mA or RS485 communication module, so that remote starting, shutdown and temperature control are realized; when the whole system automatically operates, the controller can switch the power of the heater or adjust the proportional three-way valve 13 according to the detected temperature value to realize the whole-course control of the temperature; the system can be debugged and abnormal can be eliminated by manual operation, and diversified operation of the system is realized.
Furthermore, the refrigerant driving device in the application comprises a first pump 71 and a second pump 72 which are arranged in parallel, wherein the refrigerant flow paths at the front side and the rear side of the first pump 71 and the second pump 72 are both provided with stop valves, and only one of the pumps is normally opened to operate during operation; under special conditions, two pumps can be started to operate simultaneously to increase the amount of the refrigerant sent into the heater 2; the benefits of such an arrangement are also: when one of the pumps is damaged and fails, the other pump can be started so as to ensure the stable operation of the system and avoid the influence on the normal operation caused by maintenance.
Preferably, the high-temperature heating medium oil furnace further comprises a cooling water inlet 8 and a cooling water outlet 9, the heat exchanger 3, the first pump 71 and the second pump 72 in the embodiment are respectively provided with a water inlet and a water outlet, the respective water inlets are respectively communicated with the cooling water inlet 8, the respective water outlets are respectively communicated with the cooling water outlet 9, cooling water is introduced into the heat exchanger 3 to perform heat exchange on the refrigerant, cooling water is introduced into the first pump 71 and the second pump 72 to perform circulating cooling on the pumps, and the problem that the temperature rises due to continuous operation of the high-temperature refrigerant or the pumps is solved.
Preferably, the heat utilization equipment is also provided with an oil drainage path 10, and the oil drainage path 10 is communicated between a pipeline where the refrigerant outlet 12 is located and a pipeline where the refrigerant inlet 11 is located, so that the refrigerant flowing out of the heat utilization equipment 1 can flow back to the refrigerant outlet again through the oil drainage path 10, and the problem that the refrigerant driving device is damaged due to the fact that the refrigerant flows to the refrigerant driving device under overlarge system pressure is solved; moreover, when the heat utilization equipment 1 is suddenly blocked, the system refrigerant can complete system circulation from the oil drainage path 10, and the problem that each piece of equipment is damaged due to the fact that the system is not circulated is avoided.
It should be noted that, the pipeline used in the application adopts a special pipeline for the organic heat carrier furnace, and the safety performance is ensured.
Further, a high-pressure sensor and a low-pressure sensor which are communicated with the controller 6 are arranged on the system, the pressure value of the system is ensured to be within a certain range, wherein the low-pressure sensor is arranged on the refrigerant inflow end of the heater 2, and when the system pressure value detected by the low-pressure sensor is lower than the range, the heater 2 does not perform heating work; the high pressure sensor is arranged at the refrigerant outflow end of the heater 2, and when the high pressure sensor detects that the pressure value of the refrigerant flowing out of the heater is too large, the heater also stops heating. Therefore, the safety accident caused by too large system pressure fluctuation can be avoided by detecting the system pressure value in real time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A high temperature heating medium oil furnace is characterized by comprising: a refrigerant circulation flow path communicated with the heat utilization equipment to form a loop; a heater provided on the refrigerant circulation flow path; the heat exchanger is arranged on a refrigerant circulating flow path between the heater and the heat utilization equipment and used for adjusting the temperature of the refrigerant, the heat exchanger is connected with the refrigerant circulating flow path in parallel, the heat exchanger comprises a refrigerant inflow pipe and a refrigerant outflow pipe which are communicated with the refrigerant circulating flow path, and a proportional three-way valve is arranged at the joint of the refrigerant inflow pipe and the refrigerant circulating flow path; a pressure relief device arranged on the refrigerant outflow side of the heat utilization equipment on the refrigerant circulation flow path; and the refrigerant driving device is arranged on a refrigerant circulating flow path between the pressure relief device and the heater and comprises a first pump and a second pump which are arranged in parallel.
2. The high-temperature heating medium oil furnace as claimed in claim 1, further comprising a controller electrically connected to the heater, the refrigerant driving device, and the pressure relief device.
3. The high-temperature heating medium oil heater according to claim 2, wherein a temperature detector for detecting the temperature of the high-temperature heating medium oil heater is provided in the cooling medium circulation flow path, the temperature detector is electrically connected to the controller, and the controller controls the pressure release device to release the pressure of the cooling medium circulation flow path when the temperature of the high-temperature heating medium oil heater reaches 120 ℃.
4. The high temperature heating medium oil furnace as set forth in claim 3, wherein the refrigerant circulation path includes a refrigerant outlet for supplying the heat consuming device with the refrigerant and a refrigerant inlet for allowing the heat consuming device with the refrigerant to flow out, and the temperature detecting device includes: the first temperature sensor is arranged at the refrigerant outlet, the second temperature sensor is arranged at the refrigerant inlet, and the third temperature sensor is arranged on the heater.
5. The high-temperature heating medium oil furnace as recited in claim 4, wherein the pressure relief device comprises a gas collecting cylinder arranged on the refrigerant circulation flow path and an expansion tank arranged above the gas collecting cylinder and communicated with the gas collecting cylinder, the expansion tank is provided with a liquid discharge port, an air discharge port and a pressure relief port, and the liquid discharge port, the air discharge port and the pressure relief port are respectively provided with a switch device electrically connected with the controller to control the opening or closing of the liquid discharge port, the air discharge port and the pressure relief port; and the expansion tank is also provided with an oil filling port, a protective gas inlet, a liquid level detection device and a pressure detection device.
6. The high temperature hot medium oil furnace as set forth in claim 5, wherein said gas collecting cylinder includes a refrigerant outflow side communicating with said refrigerant circulation flow path, said high temperature hot medium oil furnace further including a sampling passage communicating with said refrigerant outflow side, said sampling passage being provided with a cooler and a switching valve.
7. The high temperature heating medium oil furnace as set forth in claim 4, further comprising a leakage path communicating between a line on which the refrigerant outlet is located and a line on which the refrigerant inlet is located to allow the refrigerant flowing out of the heat using equipment to flow back to the refrigerant outlet again.
8. The high-temperature heating medium oil furnace as claimed in claim 1, further comprising a cooling water inlet and a cooling water outlet, wherein the heat exchanger, the first pump and the second pump are each provided with a water inlet and a water outlet, the water inlet is communicated with the cooling water inlet, and the water outlet is communicated with the cooling water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628877.7A CN113154677A (en) | 2020-12-31 | 2020-12-31 | High-temperature heating medium oil furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011628877.7A CN113154677A (en) | 2020-12-31 | 2020-12-31 | High-temperature heating medium oil furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154677A true CN113154677A (en) | 2021-07-23 |
Family
ID=76878553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011628877.7A Pending CN113154677A (en) | 2020-12-31 | 2020-12-31 | High-temperature heating medium oil furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113154677A (en) |
-
2020
- 2020-12-31 CN CN202011628877.7A patent/CN113154677A/en active Pending
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