Glass lining temperature measurement sleeve damage monitoring alarm and disposal device

Abstract

The utility model discloses a glass lining temperature measuring sleeve breakage monitoring alarm and disposal device, which belongs to the field of reaction kettle thermometer sleeve breakage monitoring and comprises a reaction kettle, a material inlet pneumatic valve is mounted at one end of the top of the reaction kettle, and a temperature transmitter and a pressure transmitter are mounted at the other end of the top of the reaction kettle. A steam pneumatic valve and a cooling water outlet pneumatic valve are installed in the middle of the reaction kettle, a cooling water inlet pneumatic valve and a condensate water pneumatic valve are installed at one end of the bottom of the reaction kettle, and the material inlet pneumatic valve, the steam pneumatic valve, the cooling water outlet pneumatic valve, the cooling water inlet pneumatic valve and the condensate water pneumatic valve are connected with a temperature transmitter and a pressure transmitter through pipelines. When the temperature transmitter and the pressure transmitter are in a normal-pressure or positive-pressure environment, environment gas is sucked into the cavity due to pressure difference, and the gas detector is difficult to capture effective signals, so that the pressure transmitter is particularly switched to, any abnormity can be sensitively detected by monitoring pressure change, and the safety of the temperature transmitter and the pressure transmitter is ensured. Therefore, the flexibility and the accuracy of the whole monitoring system are ensured.

Description

Technical Field

[0001] This utility model relates to the field of monitoring the damage of thermometer sleeves in reaction vessels, and in particular to a device for monitoring, alarming and handling damage to glass-lined temperature measuring sleeves. Background Technology

[0002] In the chemical industry, glass-lined reactors are commonly used equipment, and precise temperature control is essential during chemical reactions. For example, in fine chemicals and pharmaceuticals, accurate temperature control directly impacts product quality and yield. Currently, the common practice is to install a tantalum nail at the bottom of a glass-lined temperature-sensing sleeve via a threaded connection. This nail connects to a PT100 temperature-sensing wire inside the sleeve, and the temperature is displayed and transmitted via a temperature transmitter at the top of the sleeve.

[0003] Because tantalum studs are corrosion-resistant and have rapid heat transfer properties, the above methods can quickly detect the real-time temperature within the reaction system. However, there are also shortcomings. Excessively long thermometer sleeves are susceptible to bending moments and vibrations caused by material impacts, which can easily lead to leakage or even damage at the threaded joint between the enamel bottom and the tantalum stud.

[0004] Once the external structure of the bushing is damaged, the temperature transmitter at the top of the bushing can only detect the abnormality after the PT100 temperature sensing wire is damaged by high temperature or corroded by acid or alkali; however, this process takes a certain amount of time. For negative pressure reactions, oxygen from the external environment may enter the reaction system through the temperature transmitter, posing a safety hazard for some reactions with strict requirements on oxygen content or vacuum. For positive pressure reactions, there is also the possibility that flammable and toxic gases inside the reaction system may leak out through the temperature transmitter due to bushing rupture. Utility Model Content

[0005] Purpose of the invention: The purpose of this utility model is to provide a device for monitoring, alarming and handling damage to glass-lined temperature measuring sleeves.

[0006] Technical solution: Includes a reactor, with a material inlet pneumatic valve installed at one end of the top of the reactor, and a temperature transmitter and a pressure transmitter installed at the other end of the top of the reactor. A steam pneumatic valve and a cooling water outlet pneumatic valve are installed in the middle of the reactor, and a cooling water inlet pneumatic valve and a condensate pneumatic valve are installed at one end of the bottom of the reactor. The material inlet pneumatic valve, steam pneumatic valve, cooling water outlet pneumatic valve, cooling water inlet pneumatic valve, and condensate pneumatic valve are connected to the temperature transmitter and pressure transmitter through pipelines. All the above instruments and valves are connected to the DCS system to realize fully automatic monitoring and alarm interlocking actions.

[0007] By adopting the above technical solution, the temperature transmitter and pressure transmitter can intelligently adjust according to different states of the reaction system: under normal or positive pressure, it is configured as a gas detector to accurately monitor subtle changes in gas concentration in the casing cavity; while when the system is under negative pressure, considering that ambient gas is drawn into the cavity due to the pressure difference, making it difficult for the gas detector to capture an effective signal, it is specially switched to a pressure transmitter to detect any abnormalities by monitoring pressure changes, thereby ensuring the flexibility and accuracy of the entire monitoring system.

[0008] Optionally, a pipe is installed at one end of the top of the reactor. A material inlet pneumatic valve is installed at the top of the pipe, and an air inlet pipe is installed at the top of the material inlet pneumatic valve. The pipe is fixedly installed at one end of the top of the reactor by welding.

[0009] By adopting the above technical solution, the air intake pipe is used for the entry of air source.

[0010] Optionally, a second pipe is installed at the other end of the top of the reactor. A tee is installed at the top of the second pipe, and a temperature transmitter and a pressure transmitter are installed at the top of the tee. The second pipe is fixedly installed at the other end of the top of the reactor by welding, and the tee is Y-shaped.

[0011] By adopting the above technical solution, the tee can be directly connected to the inside of the temperature measuring sleeve cavity.

[0012] Optionally, a resistance wire is installed at one end inside the reactor, with a tantalum nail at the bottom of the resistance wire. The resistance wire is connected to the temperature transmitter and the pressure transmitter. The resistance wire is a PT100 resistance wire.

[0013] By adopting the above technical solution, when the connection between the tantalum nail and the temperature measuring sleeve is damaged, the material enters the inside of the temperature measuring sleeve, causing the signal to be fed back.

[0014] Optionally, flange one is provided at the top of pipe two, flange two is provided at the bottom of tee, and a sealing ring is installed between flange one and flange two.

[0015] By adopting the above technical solution, flange one and flange two are connected for the connection between the tee and the reactor.

[0016] Beneficial effects: The temperature transmitter and pressure transmitter of this utility model can intelligently adjust according to different states of the reaction system: Under normal or positive pressure, it is configured as a gas detector to accurately monitor subtle changes in gas concentration in the casing cavity; while when the system is under negative pressure, considering that ambient gas is drawn into the cavity due to the pressure difference, making it difficult for the gas detector to capture an effective signal, it is specially switched to a pressure transmitter to detect any abnormalities by monitoring pressure changes, thereby ensuring the flexibility and accuracy of the entire monitoring system. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a monitoring structure diagram of an embodiment of the present utility model;

[0019] Figure 3 This is an entry structure diagram of an embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of a three-way valve according to an embodiment of this utility model;

[0021] Explanation of reference numerals in the attached diagram: 1. Steam pneumatic valve; 2. Cooling water outlet pneumatic valve; 3. Cooling water inlet pneumatic valve; 4. Condensate pneumatic valve; 5. Material inlet pneumatic valve; 6. Temperature transmitter; 7. Pressure transmitter; 8. Tee; 9. Resistance wire; 10. Tantalum nail; 11. Reactor; 12. Pipe 1; 13. Air inlet pipe; 14. Flange 1; 15. Flange 2; 16. Pipe 2. Detailed Implementation

[0022] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, such as... Figures 1 to 4 The reactor includes a reactor 11. A material inlet pneumatic valve 5 is installed at one end of the top of the reactor 11. A temperature transmitter 6 and a pressure transmitter 7 are installed at the other end of the top of the reactor 11. A steam pneumatic valve 1 and a cooling water outlet pneumatic valve 2 are installed in the middle of the reactor 11. A cooling water inlet pneumatic valve 3 and a condensate pneumatic valve 4 are installed at one end of the bottom of the reactor 11. The material inlet pneumatic valve 5, steam pneumatic valve 1, cooling water outlet pneumatic valve 2, cooling water inlet pneumatic valve 3, and condensate pneumatic valve 4 are connected to the temperature transmitter 6 and the pressure transmitter 7 via pipelines. The temperature transmitter 6 and pressure transmitter 7 of this utility model intelligently adjust according to different states of the reaction system: under normal pressure or positive pressure, it is configured as a gas detector to accurately monitor subtle changes in gas concentration in the casing cavity; while when the system is under negative pressure, considering that ambient gas is drawn into the cavity due to pressure difference, making it difficult for the gas detector to capture an effective signal, it is specially switched to a pressure transmitter to detect any abnormalities by monitoring pressure changes, thereby ensuring the flexibility and accuracy of the entire monitoring system.

[0023] A pipe 12 is installed at one end of the top of the reactor 11. A material inlet pneumatic valve 5 is installed at the top of the pipe 12. An air inlet pipe 13 is installed at the top of the material inlet pneumatic valve 5. The air inlet pipe 13 is used for the entry of air source.

[0024] The other end of the top of the reactor 11 is equipped with a pipe 2 16, the top of the pipe 2 16 is equipped with a tee 8, the top of the tee 8 is equipped with a temperature transmitter 6 and a pressure transmitter 7, and the tee 8 is used to achieve direct communication with the inside of the temperature measuring sleeve cavity.

[0025] A resistance wire 9 is installed at one end inside the reactor 11. A tantalum nail 10 is installed at the bottom of the resistance wire 9. The resistance wire 9 is connected to the temperature transmitter 6 and the pressure transmitter 7. When the connection between the tantalum nail 10 and the temperature measuring sleeve is damaged, the material enters the temperature measuring sleeve and causes the signal to be fed back.

[0026] The top of pipe 216 is equipped with flange 14, and the bottom of tee 8 is equipped with flange 215. Flange 14 and flange 215 are connected for the connection between the tee and the reactor.

[0027] The implementation principle of the glass-lined temperature measuring sleeve damage monitoring, alarm, and handling device in this application embodiment is as follows: During use, the device reacts with both positive and normal pressure. When the connection between the tantalum nail 10 and the temperature measuring sleeve is damaged, material enters the interior of the temperature measuring sleeve. At this time, the pressure transmitter 7 can detect the change in the concentration of flammable or toxic gas inside the temperature measuring sleeve cavity immediately, and the signal is transmitted to the DCS system to issue an alarm. The gas detector setting type and concentration limit are determined according to the specific process, and the device interlocks and shuts off the steam pneumatic valve 1, condensate pneumatic valve 4, and material inlet pneumatic valve 5, interlocking and shutting off the heat medium and feed; it also interlocks and opens the cooling water inlet pneumatic valve 3 and cooling water outlet pneumatic valve 2, interlocking and opening the refrigerant for cooling.

[0028] Negative pressure reaction: When the connection between the tantalum nail 10 and the temperature measuring sleeve is damaged, material enters the inside of the temperature measuring sleeve. At this time, the pressure transmitter 7 can detect the pressure drop in the temperature measuring sleeve cavity immediately, and the signal is transmitted to the DCS system to issue an alarm. The pressure limit setting is determined according to the specific process, and the steam pneumatic valve 1, condensate pneumatic valve 4, and material inlet pneumatic valve 5 are interlocked to cut off the heat medium and feed; the cooling water inlet pneumatic valve 3 and cooling water outlet pneumatic valve 2 are interlocked to open the refrigerant for cooling.

[0029] All of the above controls are fully automated through the DCS system, requiring no manual operation. The pressure transmitter 7 can quickly detect the corresponding numerical changes in the temperature measuring sleeve cavity. Therefore, compared with the combination of conventional temperature measuring sleeve, tantalum nail, PT100 temperature measuring line and temperature transmitter, this device is more efficient in the case of monitoring sleeve damage, and corresponding interlock protection measures are added to ensure its safety.

[0030] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A device for monitoring, alarming, and handling damage to a glass-lined temperature measuring sleeve, characterized in that: The reactor includes a reactor (11), with a material inlet pneumatic valve (5) installed at one end of the top of the reactor (11), a temperature transmitter (6) and a pressure transmitter (7) installed at the other end of the top of the reactor (11), a steam pneumatic valve (1) and a cooling water outlet pneumatic valve (2) installed in the middle of the reactor (11), and a cooling water inlet pneumatic valve (3) and a condensate pneumatic valve (4) installed at one end of the bottom of the reactor (11). The material inlet pneumatic valve (5), the steam pneumatic valve (1), the cooling water outlet pneumatic valve (2), the cooling water inlet pneumatic valve (3) and the condensate pneumatic valve (4) are connected to the temperature transmitter (6) and the pressure transmitter (7) through pipelines.

2. The device for monitoring, alarming, and handling damage to a glass-lined temperature measuring sleeve according to claim 1, characterized in that: The reactor (11) is equipped with a pipe (12) at one end of the top. A material inlet pneumatic valve (5) is installed at the top of the pipe (12). An air inlet pipe (13) is installed at the top of the material inlet pneumatic valve (5).

3. The device for monitoring, alarming, and handling damage to a glass-lined temperature measuring sleeve according to claim 1, characterized in that: The other end of the top of the reactor (11) is equipped with a pipe (2, 16), a tee (8) is installed on the top of the pipe (2, 16), and a temperature transmitter (6) and a pressure transmitter (7) are installed on the top of the tee (8).

4. The device for monitoring, alarming, and handling damage to a glass-lined temperature measuring sleeve according to claim 1, characterized in that: A resistance wire (9) is installed at one end inside the reactor (11), and a tantalum nail (10) is installed at the bottom of the resistance wire (9). The resistance wire (9) is connected to a temperature transmitter (6) and a pressure transmitter (7).

5. The device for monitoring, alarming, and handling damage to a glass-lined temperature measuring sleeve according to claim 3, characterized in that: The top of the second pipe (16) is provided with flange one (14), and the bottom of the tee (8) is provided with flange two (15).

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