CN219778138U - Steam heating temperature control water circulation system - Google Patents
Steam heating temperature control water circulation system Download PDFInfo
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- CN219778138U CN219778138U CN202321056954.5U CN202321056954U CN219778138U CN 219778138 U CN219778138 U CN 219778138U CN 202321056954 U CN202321056954 U CN 202321056954U CN 219778138 U CN219778138 U CN 219778138U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model discloses a steam heating temperature control water circulation system, which comprises an internal temperature detection instrument of temperature control equipment, wherein a liquid outlet of the temperature control equipment is respectively communicated with a circulating water discharge regulating valve and a temperature control water circulation system back pressure valve, the temperature control water of the circulation system is communicated with a liquid inlet of a steam-water mixer through the back pressure valve and a one-way valve, and steam is communicated with a steam inlet of the steam-water mixer through a steam inlet main valve and a steam regulating valve in sequence; the circulating water returns from the circulating water discharge regulating valve; the outlet end of the steam-water mixer is sequentially communicated with a temperature-control water circulating pump, a pump outlet pressure detection instrument, a circulating water flowmeter and a liquid inlet of temperature-control equipment; and the outlet end of the steam-water mixer is provided with a temperature detection instrument. The utility model can maintain stable temperature of the temperature-controlled water and can rapidly adjust the temperature of the temperature-controlled water according to the heat absorption or heat release condition of the heat-exchanged equipment, thereby adjusting the temperature difference between the temperature-controlled water and the heat-exchanged equipment, and further maintaining the temperature-controlled equipment at stable working temperature.
Description
Technical Field
The utility model relates to a steam heating temperature control water circulation system, and belongs to the technical field of automatic temperature control systems of equipment.
Background
The temperature-controlled water is high in specific heat, high in heat conductivity coefficient, low in viscosity and good in safety, is often used as key equipment temperature-controlled circulating liquid in the industries of biology, pharmaceutical chemical engineering, plastic rubber and the like, and equipment such as a reaction kettle, a rectifying tower, a separating tank and the like often adopts a temperature-controlled water circulating system for temperature control, and has the characteristics of high heat exchange efficiency, good temperature stability, low operation energy consumption, environmental friendliness, no pollution, convenience in resource taking, economy, simplicity and the like, and is extremely wide in application. The temperature of the temperature-controlled water is usually higher than the room temperature and lower than the boiling point of water under normal pressure-100 ℃, and is most commonly 40-80 ℃, the temperature-controlled water needs to heat the conventional circulating cooling water, and the conventional heating mode is electric heating, but the mode has high energy consumption, and the electric equipment relates to explosion-proof requirements, so that the equipment investment is relatively high; the low-pressure steam is limited in application occasions in the production field due to low temperature, easy liquefaction and small pipeline conveying driving force, and the low-grade steam is directly mixed with circulating water to regulate and control the water temperature, so that the method is simple and flexible and is an excellent way for utilizing the waste heat of the steam.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a water circulation system for controlling the temperature of a device by heating temperature-controlled circulating water using low-quality steam is provided.
In order to solve the technical problems, the utility model provides a steam heating temperature control water circulation system, which comprises a temperature control equipment internal temperature detection instrument arranged in the temperature control equipment, wherein a liquid outlet of the temperature control equipment is respectively communicated with a circulating water discharge regulating valve and a temperature control water circulation system back pressure valve, temperature control water of the circulation system is communicated with a liquid inlet of a steam-water mixer through the temperature control water circulation system back pressure valve and a circulating water one-way valve, and a steam inlet of the steam-water mixer is communicated with steam through the steam regulating valve; the circulating water returns from the circulating water discharge regulating valve, and the supplemented fresh circulating water is communicated with a liquid inlet of the steam-water mixer; the outlet end of the steam-water mixer is sequentially communicated with a temperature-control water circulating pump, a pump outlet pressure detection instrument, a circulating water flowmeter and a liquid inlet of temperature-control equipment; the outlet end of the steam-water mixer is provided with a steam-water mixer outlet temperature detection instrument, and the opening of the steam regulating valve is controlled by cascade control of signals of the steam-water mixer outlet temperature detection instrument and signals of the temperature detection instrument in the temperature control equipment; the opening of the circulating water discharge regulating valve and the opening of the steam regulating valve are controlled by the signal of the temperature detecting instrument in the temperature control equipment in a separated way.
Preferably, the steam-water mixer is communicated with circulating temperature-controlled water, fresh circulating water and a steam pipeline.
Preferably, the outlet end of the steam-water mixer is communicated with the inlet end of the temperature-controlled water circulating pump.
Preferably, a pipeline low-point purge valve is arranged between the outlet end of the steam-water mixer and the circulating pump.
Preferably, the circulating water discharge regulating valve is communicated with a circulating water discharge total valve.
Preferably, the supplemented circulating water is communicated with the liquid inlet of the steam-water mixer through the circulating water inlet main valve and the water inlet one-way valve in sequence.
Preferably, the steam regulating valve is in communication with steam through a steam inlet main valve.
The utility model provides a steam heating temperature control water circulation system, which is characterized in that steam is directly mixed with circulating water through a steam-water mixer, the temperature of the circulating water is regulated and controlled by utilizing the heat of the steam, then the temperature control water is conveyed to temperature control equipment through a circulating pump, and the steam addition amount and the displacement amount of the circulating temperature control water by fresh cold circulating water are automatically regulated according to the temperature signal of the temperature control equipment. When the temperature of the temperature-controlled water after heat exchange with the temperature-controlled equipment is increased, the temperature signal automatically regulates and controls the steam addition amount to be reduced, the external discharge capacity of the temperature-controlled water is increased, the fresh cold circulating water is automatically supplemented, and otherwise, the steam addition amount is increased, and the external discharge capacity of the temperature-controlled water is reduced. The temperature control water circulation system can maintain stable temperature of temperature control water and can rapidly adjust the temperature of the temperature control water according to the heat absorption or heat release condition of the heat exchange equipment, so that the temperature difference between the temperature control water and the heat exchange equipment is regulated. The system is simple in principle, economical and reliable, can be applied to chemical production devices and chemical experimental devices, provides a scheme for accurate and stable temperature control of equipment, and also provides a way for reasonable utilization of low-quality steam.
Drawings
Fig. 1 is a schematic diagram of a steam heating temperature control water circulation system provided by the utility model.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Examples
As shown in fig. 1, the steam heating temperature control water circulation system provided by the utility model comprises a temperature control equipment internal temperature detection instrument 5 arranged in temperature control equipment 3, wherein a liquid outlet of the temperature control equipment 3 is respectively communicated with a circulating water discharge regulating valve 12 and a temperature control water circulation system back pressure valve 14, temperature control water of the circulation system is communicated with a liquid inlet of a steam-water mixer 1 through the temperature control water circulation system back pressure valve 14 and a circulating water one-way valve 15, and steam B is communicated with a steam inlet of the steam-water mixer 1 sequentially through a steam inlet main valve 10 and a steam regulating valve 11; the circulating water A returns from a circulating water discharge main valve 13 communicated with a circulating water discharge regulating valve 12, and the supplemented circulating water A is communicated with a liquid inlet of the steam-water mixer 1 through a circulating water inlet main valve 8 and a water inlet one-way valve 9 in sequence; the outlet end of the steam-water mixer 1 is sequentially communicated with a pipeline low-point exhaust valve 16, a temperature-controlled water circulating pump 2, a pump outlet pressure detection instrument 6, a circulating water flowmeter 7 and a liquid inlet of a temperature controlled device 3; the outlet end of the steam-water mixer 1 is provided with a steam-water mixer outlet temperature detection instrument 4, the pneumatic steam regulating valve 11 is controlled by cascade control of signals of the steam-water mixer outlet temperature detection instrument 4 and signals of the temperature-controlled equipment internal temperature detection instrument 5, and the circulating water discharge regulating valve and the steam regulating valve are controlled by signal division control of the temperature-controlled equipment internal temperature detection instrument 4.
The circulating water A of the temperature control water circulating system is connected from outside the system through a pipeline, and is converged with circulating temperature control water to enter the steam-water mixer 1 after passing through the circulating water inlet main valve 8 and the water inlet one-way valve 9, low-pressure steam B enters the steam-water mixer 1 through the steam inlet main valve 10 and the steam regulating valve 11, the temperature of the temperature control water is regulated by mixing the temperature control water, fresh cooling water and the steam B in the steam-water mixer 1, a steam-water mixer outlet temperature detecting instrument 4 is arranged on a steam-water mixer outlet pipeline, the instrument and the steam regulating valve 11 form a temperature control loop, the temperature of the temperature control water can be set, and the opening of the steam regulating valve 11 is controlled by the temperature signal and the signal cascade of the temperature detecting instrument 5 in the temperature controlled equipment. After being pressurized by the circulating pump 2, the temperature-control water enters the temperature-control equipment 3 after being pumped out by the pump outlet pressure detecting instrument 6 and the circulating water flowmeter 7 to detect the circulating flow, and after exchanging heat with the materials in the temperature-control equipment 3, part of the temperature-control water returns to the inlet of the steam-water mixer 1 after controlling the pressure of the circulating water A through the back pressure valve 14 of the temperature-control water circulating system, and part of the temperature-control water is discharged out of the temperature-control water circulating system after passing through the circulating water discharge regulating valve 12 and the circulating water return water main valve 13.
The outlet of the steam-water mixer 1 and the temperature controlled device 3 are respectively provided with a steam-water mixer outlet temperature detection instrument 4, a temperature controlled device internal temperature detection instrument 5, and a signal division control steam regulating valve 11 and a circulating water discharge regulating valve 12 of the temperature controlled device internal temperature detection instrument 5. If the temperature controlled device 3 is exothermic, the temperature of the temperature controlled water rises after heat exchange with the temperature controlled device, the opening of the steam regulating valve 11 is reduced, the opening of the circulating water discharge regulating valve 12 is increased by the signal of the temperature detecting instrument 5 in the temperature controlled device, the hot circulating temperature controlled water is discharged, and the cold fresh circulating water A automatically supplements the diluted hot temperature controlled water to achieve the cooling effect; if the controlled equipment absorbs heat, the temperature of the temperature-controlled water is reduced after heat exchange with the temperature-controlled equipment, the opening of the steam regulating valve 11 is increased and the opening of the circulating water discharging regulating valve 12 is reduced by the signal of the temperature detecting instrument 5 in the temperature-controlled equipment, the steam B heats and raises the temperature of the circulating water, and the temperature of the circulating temperature-controlled water is stabilized.
The initial temperature of the temperature control water is set by a control loop formed by the steam-water mixer outlet temperature detection instrument 4 and the steam regulating valve 11, the loop is controlled by the signal cascade of the temperature detection instrument 5 in the temperature control equipment, and when the temperature of the temperature control water is lower than a set value, the opening of the steam regulating valve 11 is automatically increased; when the temperature of the temperature-controlled water is higher than a set value, the opening of the steam regulating valve 11 is automatically reduced, and meanwhile, when the temperature-controlled equipment temperature detecting instrument 5 detects that the temperature of the temperature-controlled equipment is increased, the opening of the steam regulating valve 11 is automatically reduced, and otherwise, the opening of the steam regulating valve 11 is automatically increased.
The circulating water flowmeter 7 is an optional component, can assist in observing circulating flow, and timely feeds back abnormal conditions of the system by setting low flow alarm.
Claims (7)
1. The steam heating temperature control water circulation system is characterized by comprising a temperature control equipment internal temperature detection instrument (5) arranged in temperature control equipment (3), wherein a liquid outlet of the temperature control equipment (3) is respectively communicated with a circulating water discharge regulating valve (12) and a temperature control water circulation system back pressure valve (14), temperature control water of the circulation system is communicated with a liquid inlet of a steam-water mixer (1) through the temperature control water circulation system back pressure valve (14) and a circulating water one-way valve (15), and an air inlet of the steam-water mixer (1) is communicated with steam through a steam regulating valve (11); the circulating water returns from the circulating water discharge regulating valve (12), and the supplemented circulating water is communicated with a liquid inlet of the steam-water mixer (1); the outlet end of the steam-water mixer (1) is sequentially communicated with a temperature-controlled water circulating pump (2), a pump outlet pressure detection instrument (6), a circulating water flowmeter (7) and a liquid inlet of a temperature-controlled device (3); the outlet end of the steam-water mixer (1) is provided with a steam-water mixer outlet temperature detection instrument (4), and the opening of a steam regulating valve (11) is controlled by cascade control of signals of the steam-water mixer outlet temperature detection instrument (4) and signals of an internal temperature detection instrument (5) of temperature control equipment; the opening degrees of the circulating water discharge regulating valve (12) and the steam regulating valve (11) are controlled by the signal of the temperature detecting instrument (5) in the temperature controlled equipment in a separated way.
2. A steam heated and temperature controlled water circulation system as claimed in claim 1, characterized in that the steam-water mixer (1) is in communication with circulating temperature controlled water, fresh circulating water, steam pipes.
3. A steam heated and temperature controlled water circulation system as claimed in claim 1, wherein the outlet end of the steam-water mixer (1) is in communication with the inlet end of the temperature controlled water circulation pump (2).
4. A steam heating temperature control water circulation system according to claim 1, characterized in that a pipeline low-point purge valve (16) is arranged between the outlet end of the steam-water mixer (1) and the circulation pump (2).
5. A steam heating temperature-controlled water circulation system according to claim 1, wherein the circulating water discharge regulating valve (12) is in communication with a circulating water discharge total valve (13).
6. The steam heating temperature control water circulation system as claimed in claim 1, wherein the supplemented circulating water is communicated with the liquid inlet of the steam-water mixer (1) through a circulating water inlet main valve (8) and a water inlet one-way valve (9) in sequence.
7. A steam heated and temperature controlled water circulation system according to claim 1, characterized in that the steam regulating valve (11) is in communication with steam through a steam inlet main valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321056954.5U CN219778138U (en) | 2023-05-05 | 2023-05-05 | Steam heating temperature control water circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321056954.5U CN219778138U (en) | 2023-05-05 | 2023-05-05 | Steam heating temperature control water circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219778138U true CN219778138U (en) | 2023-09-29 |
Family
ID=88109365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321056954.5U Active CN219778138U (en) | 2023-05-05 | 2023-05-05 | Steam heating temperature control water circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219778138U (en) |
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2023
- 2023-05-05 CN CN202321056954.5U patent/CN219778138U/en active Active
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