Temperature, pressure and flow monitoring meter for monitoring chimney fluid

Abstract

The utility model discloses a temperature, pressure and flow monitoring meter for chimney fluid monitoring, which relates to the technical field of temperature, pressure and flow monitoring equipment, and comprises a static pressure valve, a total pressure valve and a blowback valve, a first interface positioned at the bottom end of the static pressure valve is communicated with the outside, and a third interface positioned at the bottom end of the total pressure valve is communicated with the outside. After flue gas enters the total pressure valve and the static pressure valve, and high-temperature flue gas is in contact with the valve body with lower temperature, liquid liquefied when cooled can be directly discharged to the external environment from the first connector and the third structure under the action of gravity; meanwhile, the back flushing valve is connected with a fourth connector of the full-pressure valve and a second connector of the static pressure valve at the same time, the back flushing valve is connected with instrument gas, the instrument gas conducts back flushing on the full-pressure valve from top to bottom through the fourth connector, liquid left in a valve body of the full-pressure valve is subjected to back flushing, dead corners are not prone to occurring due to back flushing from top to bottom, and the back flushing efficiency is improved. And liquid and particulate matters in the valve body can be discharged more effectively.

Description

Technical Field

[0001] This utility model relates to the technical field of temperature, pressure and flow monitoring equipment, and in particular to a temperature, pressure and flow monitoring meter for monitoring fluid in chimneys. Background Technology

[0002] Temperature-pressure-flow equipment (HTBO) is an instrument or system used to measure and monitor the temperature, pressure, and flow rate of a fluid (gas or liquid) in a pipe or container. It monitors the fluid's state in real time through an analysis module integrating temperature sensors, pressure sensors, and flow meters, ensuring safe, stable, and efficient system operation. HTBO typically includes a static pressure valve, a total pressure valve, a zero-adjustment valve, and a backflush valve. The total pressure valve and static pressure valve are connected to the environment under test. Flue gas enters the analysis module after passing through these valves. The zero-adjustment valve connects to the outlet of the total pressure valve and static pressure valve. When the high-temperature flue gas flows through the cooler total pressure valve, static pressure valve, and zero-adjustment valve, the water vapor in the flue gas liquefies upon cooling. Furthermore, chimneys in industrial applications often contain particulate matter impurities.

[0003] In existing thermo-pressure flow equipment, the total pressure valve, static pressure valve, and zero-adjustment valve for flue gas are arranged in parallel. The flue gas enters from the top of the total pressure valve and static pressure valve and exits from the bottom. As a result, the flue gas liquefies upon cooling, and the liquid and particulate impurities in the flue gas accumulate in the pipes below the total pressure valve, static pressure valve, and zero-adjustment valve under the influence of gravity. Furthermore, these lower-positioned pipes have dead zones, and the instrument air in the backflush valve cannot completely backflush the accumulated particles or condensed liquid to the outside from bottom to top. Some liquid and particles remain in the pipes. When the outside temperature is low, the liquid accumulated in the pipes will freeze, thus blocking the outlet pipes of the static pressure valve and the total pressure valve. In addition, the particulate impurities in the flue gas, after accumulating in the dead zones, will also block the outlet pipes at the bottom of the static pressure valve and the total pressure valve, making it impossible to monitor the fluid in real time. Utility Model Content

[0004] The main purpose of this invention is to propose a temperature-pressure-flow monitoring meter for flue gas fluid monitoring, which aims to solve the technical problem that the liquid liquefied by the flue gas flow after passing through the static pressure valve and the total pressure valve cannot be discharged.

[0005] To achieve the above objectives, this utility model proposes a temperature, pressure, and flow monitoring meter for chimney fluid monitoring, comprising: a static pressure valve, which includes a first interface and a second interface, the first interface being located at the bottom of the static pressure valve and the second interface being located at the top of the static pressure valve, the first interface being connected to the environment to be monitored; a total pressure valve, which is located on one side of the static pressure valve, and includes a third interface and a fourth interface, the third interface being located at the bottom of the total pressure valve and the fourth interface being located at the top of the total pressure valve, the third interface being connected to the environment to be monitored; and a backflush valve, the inlet of which is connected to instrument air, and the outlet of which is connected to both the second interface and the fourth interface.

[0006] Optionally, a zero-adjustment valve is also included, which is located above the static pressure valve and the total pressure valve, and the height of both ends of the zero-adjustment valve is higher than the height of the second and fourth interfaces; a fifth interface is provided on the side wall of the static pressure valve, and a sixth interface is provided on the side wall of the total pressure valve; the fifth interface and the sixth interface are respectively connected to the analysis module; one end of the zero-adjustment valve is connected to the connection pipeline between the fifth interface and the analysis module, and the other end is connected to the connection pipeline between the sixth interface and the analysis module.

[0007] Optionally, the first port of the static pressure valve is connected to the leeward side of the environment under test, and the third port of the total pressure valve is connected to the windward side of the environment under test; the two ends of the zero-adjustment valve are the reference end and the measurement end, respectively; the reference end of the zero-adjustment valve is connected to the fifth port and the connection pipeline of the analysis module; the measurement end of the zero-adjustment valve is connected to the sixth port and the connection pipeline of the analysis module.

[0008] Optionally, the air outlet of the backflush valve is connected to a first tee pipe, and the backflush valve is connected to the second interface and the fourth interface respectively through the first tee pipe.

[0009] Optionally, the reference end of the zero-adjustment valve is connected to the fifth interface and the analysis module via the second tee pipe; the measurement end of the zero-adjustment valve is connected to the sixth interface and the analysis module via the third tee pipe.

[0010] Optionally, the enclosure is also included, with the static pressure valve, total pressure valve, backflush valve and zero adjustment valve all housed within the safety cavity formed by the enclosure; a first quick connector and a second quick connector are respectively provided on both sides of the bottom wall of the enclosure, the first quick connector being connected to the first interface and located below the first interface; the second quick connector being connected to the third interface and located below the third interface.

[0011] Optionally, a third quick connector is provided on the housing, which is located between the first and second quick connectors. One end of the third quick connector is connected to the inlet end of the backflush valve, and the other end is connected to the instrument air pipe.

[0012] Optionally, the second interface is connected to the environment to be tested, and the fourth interface is connected to the environment to be tested; the outlet end of the backflush valve is connected to both the first and third interfaces, and a four-way pipe is provided between the first and third interfaces; the left and right ports of the four-way pipe are connected to the first and third interfaces respectively, the top port of the four-way pipe is connected to the outlet end of the backflush valve, and the bottom port of the four-way pipe is connected to the outside.

[0013] Optionally, the top of the four-way pipe is lower than the height of the first and third interfaces; the bottom port of the four-way pipe is connected to a one-way valve, which only allows gas or liquid in the four-way pipe to flow to the outside in one direction.

[0014] This utility model discloses a temperature, pressure, and flow monitoring meter for chimney fluid monitoring. It includes a static pressure valve, a total pressure valve, and a backflush valve. By connecting a first port at the bottom of the static pressure valve and a third port at the bottom of the total pressure valve to the outside, after flue gas enters the total pressure valve and the static pressure valve, the high-temperature flue gas comes into contact with the cooler valve body. The liquefied liquid, upon contact with the cooled valve body, can be directly discharged to the external environment through the first port and the third port under gravity. Simultaneously, the backflush valve connects to the fourth port of the total pressure valve and the fourth port of the static pressure valve. The second interface connects to the backflush valve, which is connected to the instrument air. The instrument air backflushes the total pressure valve from top to bottom through the fourth interface, backflushing away the liquid remaining in the valve body. This top-to-bottom backflush is less likely to have dead zones and can more effectively discharge the liquid in the valve body. Similarly, when the instrument air backflushes the static pressure valve through the second interface, it can backflush and dry the valve body of the static pressure valve more thoroughly. In addition, the top-to-bottom instrument air backflush can also effectively blow out particulate matter in the valve body from the first or second interface at the bottom. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the internal connection relationship of the temperature, pressure and flow monitoring meter of this utility model.

[0017] Explanation of icon numbers:

[0018] 1. First quick connector; 2. Static pressure valve; 21. First interface; 22. Second interface; 23. Fifth interface; 3. Total pressure valve; 31. Third interface; 32. Fourth interface; 33. Sixth interface; 4. Backflush valve; 5. Zero adjustment valve; 6. Analysis module; 7. Second quick connector; 8. Third quick connector.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, provided that they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] This invention proposes a temperature, pressure and flow monitoring meter for monitoring fluids in chimneys.

[0024] In this embodiment, as Figure 1The illustrated thermo-pressure-flow monitoring instrument for chimney fluid monitoring includes a static pressure valve 2, a total pressure valve 3, and a backflush valve 4. The static pressure valve 2 includes a first interface 21 and a second interface 22. The first interface 21 is located at the bottom of the static pressure valve 2, and the second interface 22 is located at the top of the static pressure valve 2. The first interface 21 is connected to the environment to be monitored. The total pressure valve 3 is located on one side of the static pressure valve 2. The total pressure valve 3 includes a third interface 31 and a fourth interface 32. The third interface 31 is located at the bottom of the total pressure valve 3, and the fourth interface 32 is located at the top of the total pressure valve 3. The third interface 31 is connected to the environment to be monitored. The inlet end of the backflush valve 4 is connected to instrument gas, and the outlet end of the backflush valve 4 is connected to both the second interface 22 and the fourth interface 32.

[0025] Specifically, by connecting the first port 21 at the bottom of the static pressure valve 2 to the outside, and the third port 31 at the bottom of the total pressure valve 3 to the outside, after the flue gas enters the total pressure valve 3 and the static pressure valve 2, the high-temperature flue gas comes into contact with the lower-temperature valve body, and the liquefied liquid can be directly discharged to the outside environment from the first port 21 and the third port 31 under the action of gravity. At the same time, the backflush valve 4 is connected to the fourth port 32 of the total pressure valve 3 and the second port 22 of the static pressure valve 2. The backflush valve 4 is connected to instrument gas. Instrument gas backflushes the total pressure valve 3 from top to bottom through the fourth port 32, backflushing the liquid remaining in the valve body. This top-to-bottom backflushing is less likely to have dead zones and can more effectively discharge the liquid in the valve body. Similarly, when instrument gas backflushes the static pressure valve 2 through the second port 22, it can backflush and dry the valve body of the static pressure valve 2 more comprehensively. In addition, the top-to-bottom instrument gas backflushing can also effectively blow out particulate matter in the valve body from the bottom first port 21 or second port 22.

[0026] Optionally, a zero-adjustment valve 5 is also included. The zero-adjustment valve 5 is positioned above the static pressure valve 2 and the total pressure valve 3, and the height of both ends of the zero-adjustment valve 5 is higher than the height of the second interface 22 and the fourth interface 32. A fifth interface 23 is provided on the side wall of the static pressure valve 2, and a sixth interface 33 is provided on the side wall of the total pressure valve 3. The fifth interface 23 and the sixth interface 33 are respectively connected to the analysis module 6. One end of the zero-adjustment valve 5 is connected to the connection pipeline between the fifth interface 23 and the analysis module 6, and the other end is connected to the connection pipeline between the sixth interface 33 and the analysis module 6.

[0027] Specifically, the first port 21 of the static pressure valve 2 is connected to the leeward side of the environment under test, and the third port 31 of the total pressure valve 3 is connected to the windward side of the environment under test; the two ends of the zero adjustment valve 5 are the reference end and the measurement end, respectively; the reference end of the zero adjustment valve 5 is connected to the connecting pipe of the fifth port 23 and the analysis module 6; the measurement end of the zero adjustment valve 5 is connected to the connecting pipe of the sixth port 33 and the analysis module 6.

[0028] More specifically, the zero-adjustment valve 5 is used to calibrate the pressure of the pressure sensor. During calibration, the zero-adjustment valve 5 is opened, and the reference end of the zero-adjustment valve 5 is connected to the pressure sensor, so that the pressure sensor reads the pressure on the leeward side of the environment to be measured (the pressure on the leeward side is atmospheric pressure), thereby using the air pressure on the leeward side as a reference to adjust the reading to zero.

[0029] In this embodiment, the height of the zero-adjustment valve 5 is above the heights of the static pressure valve 2 and the total pressure valve 3. Therefore, there is a height difference between the pipes connected to the zero-adjustment valve 5 at the fifth port 23 and the pipes connected to the zero-adjustment valve 5 at the sixth port 33. The liquid cooled in the static pressure valve 2 and the total pressure valve 3 will not enter the zero-adjustment valve 5. Simultaneously, the liquid generated after the flue gas cools upon contact with the valve body of the zero-adjustment valve 5 can flow downwards through the fifth port 23 and the sixth port 33 respectively under the influence of gravity, passing through the static pressure valve 2 and the total pressure valve 3, and then being discharged through the first port 21 and the third port 31. Furthermore, when the backflush valve 4 backflushes and dries the zero-adjustment valve 5 using instrument air, there is no dead zone during backflushing.

[0030] In this embodiment, the air outlet of the backflush valve 4 is connected to a first three-way pipe, and the backflush valve 4 is connected to the second interface 22 and the fourth interface 32 through the first three-way pipe.

[0031] In this embodiment, the reference end of the zero-adjustment valve 5 is connected to the fifth interface 23 and the analysis module 6 respectively through the second three-way pipe; the measurement end of the zero-adjustment valve 5 is connected to the sixth interface 33 and the analysis module 6 respectively through the third three-way pipe.

[0032] In this embodiment, the present invention also includes a housing, and the static pressure valve 2, total pressure valve 3, backflush valve 4, and zero-adjustment valve 5 are all disposed within the safety cavity formed by the housing. A first quick connector 1 and a second quick connector 7 are respectively disposed on both sides of the bottom wall of the housing. The first quick connector 1 communicates with the first interface 21 and is located below the first interface 21; the second quick connector 7 communicates with the third interface 31 and is located below the third interface 31. A third quick connector 8 is also disposed on the housing, positioned between the first quick connector 1 and the second quick connector 7. One end of the third quick connector 8 communicates with the inlet end of the backflush valve 4, and the other end communicates with the instrument gas pipe.

[0033] Specifically, the outer casing is made of corrosion-resistant and high-temperature-resistant materials, such as stainless steel, to withstand the harsh conditions of the chimney environment. The first quick-connect coupling 1 and the second quick-connect coupling 7 are also made of stainless steel, providing quick connection and disconnection for easy pipe installation and maintenance. The first quick-connect coupling 1 and the second quick-connect coupling 7 are located below the interface, facilitating the drainage of condensate under gravity and preventing accumulation and icing. The inclusion of the third quick-connect coupling 8 further enhances the connection efficiency of the instrument gas pipeline.

[0034] In this embodiment, the instrument gas is compressed air or compressed nitrogen.

[0035] In other embodiments, the second interface 22 is connected to the environment to be tested, and the fourth interface 32 is connected to the environment to be tested; the outlet end of the backflush valve 4 is connected to both the first interface 21 and the third interface 31, and a four-way pipe is provided between the first interface 21 and the third interface 31; the left and right ports of the four-way pipe are connected to the first interface 21 and the third interface 31 respectively, the top port of the four-way pipe is connected to the outlet end of the backflush valve 4, and the bottom port of the four-way pipe is connected to the outside.

[0036] Specifically, during use, flue gas enters from the top of static pressure valve 2 and total pressure valve 3, and is connected to the outside through a four-way pipe at the bottom. Condensed liquid is discharged naturally under gravity, avoiding accumulation and blockage.

[0037] Specifically, the top of the four-way pipe is lower than the height of the first interface 21 and the third interface 31; the bottom port of the four-way pipe is connected to a one-way valve, which only allows the gas or liquid in the four-way pipe to flow to the outside in one direction.

[0038] In normal monitoring mode, flue gas from the chimney enters the static pressure valve 2 through the second port 22 and the total pressure valve 3 through the fourth port 32. After passing through the valve body, the flue gas connects to the analysis module 6 for monitoring temperature, pressure, and flow rate. When the high-temperature flue gas comes into contact with the cooler valve body, water vapor condenses into liquid and flows to the bottom under gravity, exiting through the bottom port of the four-way valve to prevent accumulation. The one-way valve ensures that the liquid can only be discharged outwards, preventing external impurities from entering.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A temperature, pressure, and flow monitoring meter for monitoring fluid flow in chimneys, characterized in that, include: The static pressure valve (2) includes a first interface (21) and a second interface (22). The first interface (21) is located at the bottom end of the static pressure valve (2), and the second interface (22) is located at the top end of the static pressure valve (2). The first interface (21) is connected to the environment to be tested. A total pressure valve (3) is provided on one side of the static pressure valve (2). The total pressure valve (3) includes a third port (31) and a fourth port (32). The third port (31) is provided at the bottom of the total pressure valve (3), and the fourth port (32) is provided at the top of the total pressure valve (3). The third port (31) is connected to the environment to be tested. Backflush valve (4), the inlet end of which is connected to instrument gas, and the outlet end of which is simultaneously connected to the second interface (22) and the fourth interface (32).

2. The temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 1, characterized in that, It also includes a zero-adjustment valve (5), which is located above the static pressure valve (2) and the total pressure valve (3), and the height of both ends of the zero-adjustment valve (5) is higher than the height of the second interface (22) and the fourth interface (32); The static pressure valve (2) has a fifth interface (23) on its side wall, and the total pressure valve (3) has a sixth interface (33) on its side wall; the fifth interface (23) and the sixth interface (33) are respectively connected to the analysis module (6); One end of the zero-adjustment valve (5) is connected to the connection pipeline between the fifth interface (23) and the analysis module (6), and the other end is connected to the connection pipeline between the sixth interface (33) and the analysis module (6).

3. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 2, characterized in that, The first port (21) of the static pressure valve (2) is connected to the leeward side of the environment to be tested, and the third port (31) of the total pressure valve (3) is connected to the windward side of the environment to be tested. The zero-adjustment valve (5) has a reference end and a measurement end at its two ends, respectively; the reference end of the zero-adjustment valve (5) is connected to the connecting pipe of the fifth interface (23) and the analysis module (6); the measurement end of the zero-adjustment valve (5) is connected to the connecting pipe of the sixth interface (33) and the analysis module (6).

4. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 3, characterized in that, The air outlet of the backflush valve (4) is connected to a first three-way pipe, and the backflush valve (4) is connected to the second interface (22) and the fourth interface (32) through the first three-way pipe.

5. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 4, characterized in that, The reference end of the zero-adjustment valve (5) is connected to the fifth interface (23) and the analysis module (6) respectively through the second three-way pipe; the measurement end of the zero-adjustment valve (5) is connected to the sixth interface (33) and the analysis module (6) respectively through the third three-way pipe.

6. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 5, characterized in that, It also includes a housing, and the static pressure valve (2), the full pressure valve (3), the backflush valve (4) and the zero adjustment valve (5) are all disposed in the safety cavity formed by the housing; The bottom wall of the outer casing is provided with a first quick connector (1) and a second quick connector (7) on both sides respectively. The first quick connector (1) is connected to the first interface (21) and is located below the first interface (21). The second quick connector (7) is connected to the third interface (31) and is located below the third interface (31).

7. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 6, characterized in that, The outer casing is also provided with a third quick connector (8), which is located between the first quick connector (1) and the second quick connector (7). One end of the third quick connector (8) is connected to the inlet end of the backflush valve (4), and the other end is connected to the gas pipe of the instrument gas.

8. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 1, characterized in that, The second interface (22) is connected to the environment to be tested, and the fourth interface (32) is connected to the environment to be tested; The outlet end of the backflush valve (4) is connected to both the first interface (21) and the third interface (31), and a four-way pipe is provided between the first interface (21) and the third interface (31). The left and right ports of the four-way pipe are connected to the first interface (21) and the third interface (31) respectively. The port at the top of the four-way pipe is connected to the outlet end of the backflush valve (4). The port at the bottom of the four-way pipe is connected to the outside.

9. A temperature, pressure, and flow monitoring meter for chimney fluid monitoring as described in claim 8, characterized in that, The top of the four-way tube is lower than the height of the first interface (21) and the third interface (31); The port at the bottom of the four-way pipe is connected to a one-way valve, which only allows gas or liquid in the four-way pipe to flow to the outside in one direction.

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