CN217274041U - 2B acid is dried and is used middling pressure steam waste heat utilization equipment - Google Patents
2B acid is dried and is used middling pressure steam waste heat utilization equipment Download PDFInfo
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- CN217274041U CN217274041U CN202220850233.0U CN202220850233U CN217274041U CN 217274041 U CN217274041 U CN 217274041U CN 202220850233 U CN202220850233 U CN 202220850233U CN 217274041 U CN217274041 U CN 217274041U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses a 2B sour stoving is with middling pressure steam waste heat utilization equipment aims at solving and can continuously produce some middling pressure steam condensate water in the 2B sour preparation process, and this partial middling pressure steam condensate water is generally done the pressure release and is discharged the processing safely, has produced the problem of a large amount of wasting of resources, including middling pressure steam condensate water jar and low pressure steam drum, the output of middling pressure steam condensate water jar is linked together through the input of gas-liquid conveyer pipe with the low pressure steam drum, and is equipped with first level gauge and second level gauge on middling pressure steam condensate water jar and the low pressure steam drum respectively, and the upper portion output of low pressure steam drum communicates has first output tube, and the bottom output of low pressure steam drum communicates has the second output tube; and a flash evaporation regulating valve interlocked with the liquid level of the first liquid level meter is installed on the gas-liquid conveying pipe. The utility model discloses be particularly useful for the middling pressure steam waste heat recovery that 2B acid was dried, have higher social use value and application prospect.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field, concretely relates to sour stoving of 2B is with middling pressure steam waste heat utilization equipment.
Background
The 2B acid is generally obtained by sulfonating 2-chloro-4-aminotoluene with concentrated sulfuric acid, the prepared 2B acid needs to be heated and dried, low-pressure steam (less than or equal to 1.0mpa) is used for heating and drying at present, and finally the 2B acid finished product with the water content of less than or equal to 0.5 percent is obtained.
During the preparation process of the 2B acid, a part of medium-pressure steam condensate with the pressure of 2.2-2.6mpa and the temperature of 200 ℃ is continuously generated, and the part of the medium-pressure steam condensate is generally subjected to pressure relief and safe discharge treatment, so that a large amount of resource waste is generated. Therefore, a medium-pressure steam waste heat utilization device for drying 2B acid is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve or at least alleviate the problem that exists among the prior art.
The utility model provides a 2B sour stoving is with middling pressure steam waste heat utilization equipment, including the middling pressure steam condensate water pitcher that is used for collecting middling pressure steam condensate water and the low pressure steam jar that is used for collecting low pressure steam and steam condensate water, the output of middling pressure steam condensate water pitcher is linked together through gas-liquid conveyer pipe and low pressure steam jar's input, and is equipped with the first level gauge and the second level gauge that are used for the interior liquid level monitoring of jar on middling pressure steam condensate water pitcher and the low pressure steam jar respectively, and the upper portion output of low pressure steam jar communicates has the first output tube that is used for the output of low pressure steam, and the bottom output of low pressure steam jar communicates the second output tube that is used for steam condensate water to discharge;
and a flash evaporation regulating valve interlocked with the liquid level of the first liquid level meter is installed on the gas-liquid conveying pipe, and a low-pressure steam regulating valve interlocked with the internal pressure of the low-pressure steam tank is installed on the first output pipe.
Optionally, a pressure indicator for pressure monitoring and a temperature indicator for temperature monitoring are mounted on each of the medium-pressure steam condensate tank and the low-pressure steam tank.
Optionally, a drain regulating valve interlocked with the liquid level of the second liquid level meter is mounted on the second output pipe.
Optionally, the low pressure steam regulating valve is interlocked with a pressure indicator on the low pressure steam tank to maintain constant control of the pressure in the low pressure steam storage tank.
Optionally, the input end of the medium-pressure steam condensate water tank is connected with a medium-pressure steam condensate water source through a water inlet pipe.
Optionally, the bottoms of the medium-pressure steam condensate tank and the low-pressure steam tank are both provided with manually controlled tank bottom valves.
Optionally, the pressure of the medium-pressure steam condensate is 2.2-2.6mpa, the temperature is 216-222 ℃, and the low-pressure steam is 0.8-1.0mpa and 175-185 ℃ of saturated steam.
Optionally, the system further comprises a control unit for automatic control of the flash evaporation regulating valve, the low-pressure steam regulating valve and the drainage regulating valve, and the control unit is a PLC (programmable logic controller).
The utility model discloses mainly possess following beneficial effect:
1. the utility model discloses a medium pressure steam condensate water passes through the gas-liquid conveyer pipe and carries to the flash evaporation governing valve, through the regulation of flash evaporation governing valve, medium pressure steam condensate water is along with the sudden reduction of pressure and releases a large amount of sensible heats, the sensible heat of release heats into the lower saturated steam of pressure with the partial comdenstion water of decompression, afterwards, saturated steam and the partial comdenstion water that does not flash evaporation carry to low pressure steam drum through the gas-liquid conveyer pipe, low pressure steam carries and is used for the sour stoving of 2B to the heating stoving flow, realize the flash evaporation steam production, supply with the sour stoving of 2B, reach waste heat utilization, energy saving and consumption reduction's purpose.
2. The utility model discloses a low pressure steam passes through the first output tube of upper portion output, carries through low pressure steam control valve to the heating and drying flow and is used for the sour stoving of 2B, and the pressure indicator on low pressure steam control valve and the low pressure steam jar forms the pressure interlocking, through the aperture of adjusting low pressure steam control valve, realizes the interior constant control of pressure of low pressure steam jar, maintains the low pressure steam supply who carries out the continuation to the heating and drying flow.
Drawings
The above characteristics, technical features, advantages and implementation manners of the medium-pressure steam waste heat utilization device for 2B acid drying will be further described in the following description of preferred embodiments in a clearly understandable manner and with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a medium-pressure steam condensate water tank 10, a first liquid level meter 101, a low-pressure steam tank 20, a second liquid level meter 201, a gas-liquid conveying pipe 30, a water inlet pipe 40, a first output pipe 50, a second output pipe 60, a flash evaporation regulating valve 70, a low-pressure steam regulating valve 80, a drainage regulating valve 90 and a tank bottom valve 100.
Detailed Description
The invention will be further described with reference to the following figures 1 and examples:
example 1
The utility model provides a sour stoving of 2B is with middling pressure steam waste heat utilization equipment, refer to figure 1, including the middling pressure steam condensate water jar 10 that is used for collecting the middling pressure steam condensate water and the low pressure steam jar 20 that is used for collecting low pressure steam and steam condensate water, the input of middling pressure steam condensate water jar 10 is connected with middling pressure steam condensate water source through inlet tube 40, and in this embodiment, the pressure of middling pressure steam condensate water is 2.2-2.6mpa, and the temperature is 216 and supplyes 222 ℃, and the low pressure steam is 0.8-1.0mpa, 175 supplyes 185 ℃ of saturated steam;
the output end of the medium-pressure steam condensate water tank 10 is communicated with the input end of the low-pressure steam tank 20 through a gas-liquid conveying pipe 30, a first liquid level meter 101 and a second liquid level meter 201 for monitoring the liquid level in the tank are respectively arranged on the medium-pressure steam condensate water tank 10 and the low-pressure steam tank 20, the output end of the upper part of the low-pressure steam tank 20 is communicated with a first output pipe 50 for outputting low-pressure steam, and the output end of the bottom part of the low-pressure steam tank 20 is communicated with a second output pipe 60 for discharging steam condensate;
in this embodiment, as shown in fig. 1, a pressure indicator for pressure monitoring and a temperature indicator for temperature monitoring are installed on both the medium-pressure steam condensate tank 10 and the low-pressure steam tank 20, a flash evaporation regulating valve 70 interlocked with the liquid level of the first liquid level meter 101 is installed on the gas-liquid delivery pipe 30, a low-pressure steam regulating valve 80 interlocked with the internal pressure of the low-pressure steam tank 20 is installed on the first output pipe 50, in this embodiment, the low-pressure steam regulating valve 80 is linked with the pressure indicator on the low-pressure steam tank 20 to maintain the constant control of the pressure in the low-pressure steam tank, and a drain regulating valve 90 interlocked with the liquid level of the second liquid level meter 201 is installed on the second output pipe 60;
in this embodiment, a control unit for automatic control of the flash evaporation regulating valve 70, the low-pressure steam regulating valve 80 and the drain regulating valve 90 is further included, and the control unit is a PLC controller.
In the embodiment, the medium-pressure steam condensate water with the pressure of 2.2-2.6mpa and the temperature of 216-;
it can be understood that the liquid level in the medium-pressure steam condensate water tank 10 can be automatically controlled by adjusting the opening degree of the flash evaporation regulating valve 70 and combining the liquid level linkage of the first liquid level meter 101, so that the continuous operation of the device can be maintained;
the low-pressure steam in the low-pressure steam tank 20 is conveyed to the heating and drying process for 2B acid drying through the first output pipe 50 at the upper output end through the low-pressure steam regulating valve 80, the low-pressure steam regulating valve 80 and a pressure indicator on the low-pressure steam tank 20 form pressure interlocking, the constant control of the pressure in the low-pressure steam tank 20 is realized by regulating the opening degree of the low-pressure steam regulating valve 80, and the continuous low-pressure steam supply for the heating and drying process is maintained;
the steam condensate in the low pressure steam tank 20 passes through the second output pipe 60 of lower part output, discharges through the drainage regulating valve 90, and the drainage regulating valve 90 forms the liquid level chain with the second level gauge 201, through the aperture of drainage regulating valve 90, and the steam condensate liquid level height in the automatic control low pressure steam tank 20, the sustained operation of retaining device.
It will be appreciated that in order to avoid flash evaporation in the piping tending to cause cavitation damage to the valve, the flash regulating valve 70 is provided with a cavitation erosion resistant material.
Example 2
The present embodiment is different from embodiment 1 in that, as shown in fig. 1, a tank bottom valve 100 is installed at the bottom of each of the medium pressure steam condensate tank 10 and the low pressure steam tank 20 for improving safety, and the tank bottom valve 100 is manually controlled in an emergency or during maintenance.
Other undescribed structures refer to example 1.
According to the utility model discloses 2B sour stoving of embodiment is with medium pressure steam waste heat utilization equipment, the medium pressure steam condensate water passes through inlet tube 40 and gets into in the medium pressure steam condensate water jar 10, the medium pressure steam condensate water is carried to flash evaporation governing valve 70 through gas-liquid conveyer pipe 30, through the regulation of flash evaporation governing valve 70, the medium pressure steam condensate water is along with the sudden reduction of pressure and release a large amount of sensible heats, the sensible heat of release heats partial condensate water of decompression into the lower saturated steam of pressure, subsequently, the saturated steam and the partial condensate water of not flash evaporation are carried to low pressure steam drum 20 through gas-liquid conveyer pipe 30, low pressure steam drum 20 then provides the space that fluid gasifies rapidly and vapour-liquid separation; it can be understood that the liquid level in the medium-pressure steam condensate water tank 10 can be automatically controlled by adjusting the opening degree of the flash evaporation regulating valve 70 and combining with the liquid level linkage of the first liquid level meter 101, so as to maintain the continuous operation of the device;
the low-pressure steam in the low-pressure steam tank 20 is conveyed to the heating and drying process for 2B acid drying through the first output pipe 50 at the upper output end through the low-pressure steam regulating valve 80, the low-pressure steam regulating valve 80 and a pressure indicator on the low-pressure steam tank 20 form pressure interlocking, the constant control of the pressure in the low-pressure steam tank 20 is realized by regulating the opening of the low-pressure steam regulating valve 80, and the continuous low-pressure steam supply for the heating and drying process is maintained;
the steam condensate in the low-pressure steam tank 20 is discharged through the second output pipe 60 at the lower output end through the drainage regulating valve 90, the drainage regulating valve 90 and the second liquid level meter 201 form liquid level linkage, the liquid level height of the steam condensate in the low-pressure steam tank 20 is automatically controlled through the opening degree of the drainage regulating valve 90, and the continuous operation of the device is maintained;
in addition, in this embodiment, the flash evaporation regulating valve 70, the low-pressure steam regulating valve 80, and the drain regulating valve 90 under the interlocking control can effectively ensure that the device continuously and automatically operates under the automatic control of the control system.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The medium-pressure steam waste heat utilization device for drying the 2B acid comprises a medium-pressure steam condensate water tank (10) for collecting medium-pressure steam condensate water and a low-pressure steam tank (20) for collecting low-pressure steam and steam condensate water, and is characterized in that the output end of the medium-pressure steam condensate water tank (10) is communicated with the input end of the low-pressure steam tank (20) through a gas-liquid conveying pipe (30), a first liquid level meter (101) and a second liquid level meter (201) for monitoring the liquid level in the tank are respectively arranged on the medium-pressure steam condensate water tank (10) and the low-pressure steam tank (20), the upper output end of the low-pressure steam tank (20) is communicated with a first output pipe (50) for outputting the low-pressure steam, and the bottom output end of the low-pressure steam tank (20) is communicated with a second output pipe (60) for discharging the steam condensate water;
the gas-liquid delivery pipe (30) is provided with a flash evaporation regulating valve (70) interlocked with the liquid level of the first liquid level meter (101), and the first output pipe (50) is provided with a low-pressure steam regulating valve (80) interlocked with the internal pressure of the low-pressure steam tank (20).
2. The medium-pressure steam waste heat utilization device for drying 2B acid according to claim 1, which is characterized in that: and the medium-pressure steam condensate water tank (10) and the low-pressure steam tank (20) are respectively provided with a pressure indicator for pressure monitoring and a temperature indicator for temperature monitoring.
3. The medium-pressure steam waste heat utilization device for drying 2B acid as claimed in claim 1, characterized in that: and a drainage regulating valve (90) interlocked with the liquid level of the second liquid level meter (201) is arranged on the second output pipe (60).
4. The medium-pressure steam waste heat utilization device for drying 2B acid as claimed in claim 2, characterized in that: the low pressure steam regulating valve (80) is connected with a pressure indicator on the low pressure steam tank (20) to maintain the constant control of the pressure in the low pressure steam storage tank.
5. The medium-pressure steam waste heat utilization device for drying 2B acid as claimed in claim 1, characterized in that: the input end of the medium-pressure steam condensate water tank (10) is connected with a medium-pressure steam condensate water source through a water inlet pipe (40).
6. The medium-pressure steam waste heat utilization device for drying 2B acid according to claim 1, which is characterized in that: and manually controlled tank bottom valves (100) are respectively arranged at the bottoms of the medium-pressure steam condensate water tank (10) and the low-pressure steam tank (20).
7. The medium-pressure steam waste heat utilization device for drying 2B acid as claimed in claim 1, characterized in that: the pressure of the medium-pressure steam condensate water is 2.2-2.6mpa, the temperature is 216-222 ℃, and the low-pressure steam is 0.8-1.0mpa and 175-185 ℃ of saturated steam.
8. The medium-pressure steam waste heat utilization device for drying 2B acid as claimed in claim 3, characterized in that: the automatic control system also comprises a control unit for automatic control of the flash evaporation regulating valve (70), the low-pressure steam regulating valve (80) and the drainage regulating valve (90), and the control unit is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850233.0U CN217274041U (en) | 2022-04-13 | 2022-04-13 | 2B acid is dried and is used middling pressure steam waste heat utilization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850233.0U CN217274041U (en) | 2022-04-13 | 2022-04-13 | 2B acid is dried and is used middling pressure steam waste heat utilization equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217274041U true CN217274041U (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220850233.0U Active CN217274041U (en) | 2022-04-13 | 2022-04-13 | 2B acid is dried and is used middling pressure steam waste heat utilization equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217274041U (en) |
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2022
- 2022-04-13 CN CN202220850233.0U patent/CN217274041U/en active Active
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