A power plant equipment operation fault diagnosis device

Abstract

This invention relates to the field of power plant equipment operation fault diagnosis technology, and more particularly to a power plant equipment operation fault diagnosis device, comprising an electrical control cabinet and a diagnostic device, the diagnostic device being installed at the bottom of the electrical control cabinet; the diagnostic device includes a diagnostic box and a rotating door, the top of the diagnostic box being fixedly connected to the electrical control cabinet, the rotating door being rotatably connected to the front of the diagnostic box, and a handle being installed on the front of the rotating door; a multimeter is fixedly connected inside the diagnostic box, a fixed frame is fixedly connected to the bottom of the multimeter, and evenly distributed connecting components are fixedly connected to the top of the fixed frame; in this invention, by mounting the diagnostic device at the bottom of the electrical control cabinet, once a power plant fault occurs, maintenance personnel can arrive at the fault area, open the rotating door by the handle, and perform fault diagnosis inside the electrical control cabinet by adjusting the multimeter to the appropriate range and pushing the corresponding connecting component to align it with the second pair of connectors above, thus performing fault diagnosis very conveniently.

Description

Technical Field

[0001] This invention relates to the field of power plant equipment operation fault diagnosis technology, specifically to a power plant equipment operation fault diagnosis device. Background Technology

[0002] With the rapid development of the economy and society, the demand for electricity is also growing rapidly. Power plants are the main places that provide electricity to people and bear the important mission of meeting people's electricity needs and maintaining the rapid development of the social economy. Power plant equipment is an important part of the power plant, and its operating status is related to the overall operating efficiency and economic benefits of the power plant. However, since power plants need to continuously and massively supply electricity to people's production and life, some electrical equipment failures are inevitable in the actual operation of the power plant, reducing the power plant's production efficiency and operational stability.

[0003] Currently, power plants experience a wide variety of common faults, including multiple instances of abnormal coal feeder failures leading to boiler flameout and resulting accidents; unit trips caused during the switching of feedwater bypass to the main line; misjudgments due to damaged bottom water seals causing significant load fluctuations and overheating; multiple instances of improper drum water level control leading to escalation of accidents; fan failures; and tripping. When a fault occurs, fault diagnosis is typically achieved through the connection of the system and various monitoring units. However, due to the large size of the fault diagnosis system, it takes a considerable amount of time to detect a fault and transmit instructions to maintenance personnel. Furthermore, maintenance personnel need to carry common tools, such as multimeters, to measure the internal circuits of the electrical control cabinets to pre-determine the specific condition of the equipment. However, the numerous cables inside the control cabinets require tracing each cable individually and connecting it externally, which is cumbersome and affects the efficiency of fault handling. Therefore, to address these issues, a power plant equipment operation fault diagnosis device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a power plant equipment operation fault diagnosis device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] As an optional solution to the power plant equipment operation fault diagnosis device of the present invention, the power plant equipment operation fault diagnosis device includes an electrical control cabinet and a diagnostic device, wherein the diagnostic device is installed at the bottom of the electrical control cabinet;

[0007] The diagnostic device includes a diagnostic box and a rotating door. The top of the diagnostic box is fixedly connected to the electrical control cabinet, and the rotating door is rotatably connected to the front of the diagnostic box. A handle is installed on the front of the rotating door.

[0008] A multimeter is fixedly connected inside the diagnostic box. A fixed frame is fixedly connected to the bottom of the multimeter, and evenly distributed connecting components are fixedly connected to the top of the fixed frame.

[0009] The diagnostic box has a top frame fixedly connected to its internal top layer, and a second pair of connectors evenly distributed at the bottom of the top frame. Currently, power plants commonly experience a variety of faults, including multiple instances of abnormal coal feeder failure leading to boiler flameout and resulting accidents; tripping during the switching of feedwater bypass to the main line; misjudgments due to damaged bottom water seals causing significant load fluctuations and overheating; multiple instances of improper drum water level control leading to escalated accidents; fan failures; and tripping. Once a fault occurs, fault diagnosis is generally achieved through the connection of the system with various monitoring units. However, due to the large size of the fault diagnosis system, it takes a long time to detect a fault and transmit instructions to maintenance personnel. Maintenance personnel also need to carry common tools, such as multimeters to measure the internal circuits of the electrical control cabinets at the corresponding locations to pre-determine the specific faults of the equipment at those locations. However, the electrical control cabinet has many internal cables. When using a multimeter, it is necessary to locate each cable one by one and connect it to the outside of the corresponding cable to measure the current or voltage to determine whether the current or voltage is within the standard value. This diagnostic method is very troublesome and affects the efficiency of fault handling. In the case of this device, once a fault occurs, the maintenance personnel first rush to the electrical control cabinet and then move the rotating door by the handle. At this time, the multimeter is exposed. When diagnosing the fault, first determine whether to measure current or voltage, then set the multimeter to the appropriate range, and activate the corresponding connection component. At this time, the corresponding connection component connects to the second pair of connectors above. The diagnostic result can be understood by observing the multimeter. This setting is very convenient and quick for fault diagnosis, greatly saves time, and facilitates subsequent work.

[0010] As an optional solution of the power plant equipment operation fault diagnosis device described in this invention, the front side of the top frame is fixedly connected with nameplates that are evenly distributed and correspond one-to-one with the second pair of connectors below. There are many cables inside the electrical control cabinet. When using a multimeter, this device does not need to search for the corresponding lines one by one. The actual situation can be understood by observing the corresponding nameplates and then connected to the outside, which is very convenient.

[0011] As an optional solution of the power plant equipment operation fault diagnosis device described in this invention, the rotating door is internally fixedly connected with a horizontally arranged insulating plate. After the fault diagnosis is completed, when the rotating door is closed, the insulating plate is located between the second pair of connectors and the connecting assembly, serving to block them and prevent them from connecting. If the second pair of connectors is not separated from the connecting assembly in time, the rotating door cannot be closed normally under the action of the insulating plate. This setting ensures that the equipment is in a separated state after the diagnosis is completed, ensuring the normal use of the equipment inside the electrical control cabinet and ensuring the normal operation of the next operation. When in use, the insulating plate rotates with the rotating door, thereby avoiding its impact on subsequent connection purposes.

[0012] As an optional solution of the power plant equipment operation fault diagnosis device of the present invention, wherein: a connecting pipe is provided between each of the connecting components, and the connecting components are connected to each other through the connecting pipe. This setting allows the two chambers inside the connecting components to be interconnected and have the same internal pressure, so that when one side plate and sliding plate move, the other side plate and sliding plate move accordingly, ensuring that only one first pair of connectors can be connected to the second pair of connectors above each time, thus ensuring normal use of the equipment.

[0013] As an optional solution of the power plant equipment operation fault diagnosis device described in this invention, the outer sides of the connecting components on both sides are connected to air pipes, and the other end of the air pipes is connected to a pressure gauge. The pressure gauge can monitor the pressure of the upper and lower chambers inside the connecting components. Once the pressure drops, it indicates a leak. At this time, when performing the measurement work, it is necessary to pay attention to whether only the first pair of connectors is connected to the second pair of connectors.

[0014] As an optional solution of the power plant equipment operation fault diagnosis device of the present invention, the connecting component includes a connecting frame and a connecting wire. The bottom of the connecting frame is fixedly connected to the fixed frame. A pushing sealing plate is provided inside the connecting frame. A pushing block is fixedly connected to the front side of the pushing sealing plate. A sliding plate is fixedly connected to the rear side of the pushing sealing plate. A connecting wire is fixedly connected inside the sliding plate. One end of the connecting wire is connected to a multimeter, and the other end of the connecting wire is fixedly connected to a first connector.

[0015] Both sides of the connecting frame are connected to vertically distributed connecting pipes, and the outer sides of the connecting frame on both sides are connected to air pipes. When diagnosing power plant equipment faults, the corresponding first pair of connectors and the corresponding second pair of connectors are measured by observing the nameplate. At this time, the push block is pushed to move the sealing plate, which in turn moves the sliding plate, side plate, and sliding block, thereby allowing the upper first pair of connectors to move and contact the second pair of connectors to achieve connection, which facilitates fault diagnosis. The push sealing plate, sliding plate, side plate, and sliding block form a sealing plate to divide the connecting frame into upper and lower chambers. When the chamber on one side is squeezed, the gas in the other chambers drives the push sealing plate, sliding plate, side plate, and sliding block to move, preventing the other first pair of connectors from connecting with the upper second pair of connectors and thus affecting the fault diagnosis results.

[0016] As an optional solution of the power plant equipment operation fault diagnosis device of the present invention, the outer side of the first joint is tightly slidably connected with a sealing sleeve, and the outer side of the sealing sleeve is fixedly connected to the connecting frame. This arrangement ensures that the cavity above the connecting frame is sealed, ensuring that the equipment can be used normally.

[0017] As an optional solution of the power plant equipment operation fault diagnosis device of the present invention, the connecting frame is provided with a sliding groove, and the connecting frame is slidably connected to a sliding block through the sliding groove. The other end of the sliding block is fixedly connected to a side plate, and the outer side of the side plate is fixedly connected to the sliding plate. Pushing the sealing plate, the sliding plate, the side plate and the sliding block can form a sealing plate to prevent the upper and lower chambers of the connecting frame from communicating or leaking, and ensure that the equipment can be used normally.

[0018] As an optional solution of the power plant equipment operation fault diagnosis device of the present invention, the upper and lower sides of the side plate are fixedly connected with sealing layers, the outer side of the sealing layer is slidably connected to the connecting frame, and the sealing layer ensures that the two chambers inside the connecting frame are sealed.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In this invention, a diagnostic device is installed at the bottom of the electrical control cabinet. Once a power plant malfunctions, maintenance personnel can rush to the fault area, open the rotating door by the handle, and perform fault diagnosis inside the electrical control cabinet by adjusting the multimeter to the appropriate setting and pushing the corresponding connecting component to align it with the second pair of connectors above. This is very convenient.

[0021] Furthermore, a nameplate is provided on the surface of the top frame. When connecting the connecting components to the second connector, the nameplate can display the corresponding line information, which makes it very convenient to find the line, saves a lot of time in finding the line, and improves the efficiency of fault diagnosis.

[0022] Furthermore, the connecting components are interconnected through a connecting pipe. The internal components of the connecting components are sealed and have a certain pressure. When docking with the second connector, the pusher pushes the sealing plate and side plate to move. During inspection, only the first connector docks with the second connector, ensuring the accuracy of the diagnosis.

[0023] The side plates, sealing layers, push sealing plates, and sliding plates can divide the inside of the connecting frame into two chambers. When the first pair of connectors on one side moves upward, the first pair of connectors on the other side moves downward, thereby ensuring the accuracy of the measurement.

[0024] A connecting line is installed in the bottom chamber, and a certain distance is reserved in the connecting line. When the sliding plate moves, the connecting line can automatically extend to ensure that the first pair of connectors moves normally.

[0025] The air tube and pressure gauge can detect the internal pressure of the connecting frame. If a leak occurs, it can be detected and dealt with in time. If it is not dealt with in time, attention should be paid to the connection between the other first and second connectors when connecting to the second connector.

[0026] After the fault diagnosis is completed, when the rotating door is closed, the insulating plate is located between the second pair of connectors and the connecting components to block them and prevent them from connecting. If the second pair of connectors is not separated from the connecting components in time, the rotating door will not be able to close properly under the action of the insulating plate. This setting ensures that the equipment is in a separated state after the diagnosis is completed, ensuring the normal use of the equipment inside the electrical control cabinet and ensuring that the next operation will proceed normally. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the diagnostic device of the present invention;

[0029] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at point A;

[0030] Figure 4 This is a schematic diagram of the structure of the connection component of the present invention;

[0031] Figure 5 This is a schematic diagram of the installation structure of the sliding plate of the present invention.

[0032] In the diagram: 1. Electrical control cabinet; 2. Diagnostic device; 201. Diagnostic box; 202. Rotating door; 203. Insulating board; 204. Handle; 205. Multimeter; 206. Fixing frame; 207. Connecting assembly; 2071. Connecting frame; 2072. Connecting wire; 2073. Push sealing plate; 2074. Side plate; 2075. Sealing layer; 2076. First connector; 2077. Sealing sleeve; 2078. Push block; 2079. Sliding plate; 2080. Sliding block; 208. Top frame; 209. Second connector; 210. Nameplate; 211. Connecting pipe; 212. Air pipe; 213. Pressure gauge. Detailed Implementation

[0033] Example 1:

[0034] Please see Figure 1 and Figure 2 The present invention provides a technical solution:

[0035] A power plant equipment operation fault diagnosis device includes an electrical control cabinet 1 and a diagnostic device 2, wherein the diagnostic device 2 is installed at the bottom of the electrical control cabinet 1;

[0036] The diagnostic device 2 includes a diagnostic box 201 and a rotating door 202. The top of the diagnostic box 201 is fixedly connected to the electrical control cabinet 1. The rotating door 202 is rotatably connected to the front side of the diagnostic box 201. A handle 204 is installed on the front side of the rotating door 202.

[0037] A multimeter 205 is fixedly connected inside the diagnostic box 201. A fixing frame 206 is fixedly connected to the bottom of the multimeter 205, and a uniformly distributed connecting component 207 is fixedly connected to the top of the fixing frame 206.

[0038] The top layer of the diagnostic box 201 is fixedly connected to a top frame 208, and the bottom of the top frame 208 is fixedly connected to a second pair of connectors 209 that are evenly distributed.

[0039] Currently, power plant malfunctions are diverse, including multiple incidents of abnormal coal feeder failures leading to boiler flameout and resulting accidents; unit trips caused during the switching of feedwater bypass to the main line; misjudgments due to damaged bottom water seal valves causing significant load fluctuations and overheating; multiple incidents of improper drum water level control leading to escalation of accidents; fan failures; and tripping. Once a malfunction occurs, fault diagnosis is typically achieved through the connection of the system and various monitoring units. However, due to the large size of the fault diagnosis system, it takes a considerable amount of time to detect a fault and transmit instructions to maintenance personnel. Maintenance personnel also need to carry common tools, such as multimeters, to measure the internal circuits of the corresponding electrical control cabinets to pre-determine the specific condition of the equipment at that location. However, the electrical control cabinets have numerous cables, requiring the multimeter to locate each cable individually. The traditional diagnostic method involves connecting the circuit to the outside of the corresponding line to measure the current or voltage to determine if it is within the standard value. This method is cumbersome and affects the efficiency of fault handling. However, when this device is in use, if a fault occurs, the maintenance personnel first go to the side of the electrical control cabinet 1, and then move the rotating door 202 by using the handle 204. At this time, the multimeter 205 is exposed. When diagnosing the fault, first determine whether to measure the current or voltage, and then set the multimeter 205 to the corresponding range. By activating the corresponding connection component 207, the corresponding connection component 207 is connected to the second pair of connectors 209 above. The diagnostic result can be obtained by observing the multimeter 205. This setting is very convenient and quick for fault diagnosis, greatly saves time, and facilitates subsequent work.

[0040] Example 2

[0041] This embodiment is an improvement made to Implementation 1. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, the front side of the top frame 208 is fixedly connected with nameplates 210 that are evenly distributed and correspond one-to-one with the second pair of connectors 209 below.

[0042] The electrical control cabinet 1 has many internal cables. When using a multimeter 205, this device does not need to search for each corresponding line one by one. The actual situation can be understood by observing the corresponding nameplate 210, and then connected to the outside, which is very convenient.

[0043] Example 3

[0044] This embodiment is an improvement upon the two implementation examples. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, the aforementioned rotating door 202 has an insulating plate 203 that is horizontally arranged fixedly connected inside.

[0045] After the fault diagnosis is completed, when the rotating door 202 is closed, the insulating plate 203 is located between the second connector 209 and the connecting component 207 to block them from connecting. If the second connector 209 is not separated from the connecting component 207 in time, the rotating door 202 will not be able to close properly under the action of the insulating plate 203. This setting ensures that the equipment is in a separated state after the diagnosis is completed, ensuring the normal use of the equipment inside the electrical control cabinet 1 and ensuring the normal operation of the next operation. When in use, the insulating plate 203 rotates with the rotating door 202, thereby avoiding its impact on subsequent connections.

[0046] Example 4

[0047] This embodiment is an improvement upon the three implementation examples. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, each of the above-mentioned connecting components 207 is provided with a connecting pipe 211, and the connecting components 207 are connected to each other through the connecting pipe 211.

[0048] This configuration connects the two chambers inside the connecting assembly 207, and the internal pressure is consistent. This allows the other side plate 2074 and sliding plate 2079 to move simultaneously when one side plate 2074 and sliding plate 2079 move. This ensures that only one first connector 2076 can connect to the second connector 209 above during each measurement, guaranteeing normal operation of the equipment.

[0049] Example 5

[0050] This embodiment is an improvement upon the four implementation examples. Please refer to [link / reference]. Figure 1 and Figure 2 Specifically, both sides of the connecting components 207 are connected to air pipes 212 on the outside, and the other end of the air pipes 212 is connected to a pressure gauge 213.

[0051] Pressure gauge 213 can monitor the pressure in the upper and lower chambers inside the connecting assembly 207. If the pressure drops, it indicates a leak. When performing the measurement, it is necessary to check whether only the first connector 2076 and the second connector 209 are connected.

[0052] Example 6

[0053] This embodiment is an improvement upon the previous five implementations. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3Specifically, the connecting component 207 includes a connecting frame 2071 and a connecting wire 2072. The bottom of the connecting frame 2071 is fixedly connected to the fixed frame 206. The connecting frame 2071 is provided with a push sealing plate 2073. A push block 2078 is fixedly connected to the front side of the push sealing plate 2073. A sliding plate 2079 is fixedly connected to the rear side of the push sealing plate 2073. The connecting wire 2072 is fixedly connected inside the sliding plate 2079. One end of the connecting wire 2072 is connected to a multimeter 205, and the other end of the connecting wire 2072 is fixedly connected to a first connector 2076.

[0054] Both sides of the aforementioned connecting frame 2071 are connected to connecting pipes 211 distributed vertically, and both sides of the aforementioned connecting frame 2071 are connected to air pipes 212.

[0055] When diagnosing power plant equipment faults, the nameplate 210 is used to observe the first connector 2076 and the corresponding second connector 209 for measurement. At this time, the pusher block 2078 is pushed to move the sealing plate 2073, which in turn moves the sliding plate 2079, side plate 2074, and sliding block 2080. This allows the upper first connector 2076 to move and contact the second connector 209 for connection, facilitating fault diagnosis. The sealing plate 2073, sliding plate 2079, side plate 2074, and sliding block 2080 form a sealing plate to divide the connecting frame 2071 into upper and lower chambers. This allows the gas in the other chambers to move the sealing plate 2073, sliding plate 2079, side plate 2074, and sliding block 2080 while the other chamber is being squeezed, preventing the other first connector 2076 from contacting the upper second connector 209 and affecting the fault diagnosis results.

[0056] Example 7

[0057] This embodiment is an improvement upon the previous six implementations. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Specifically, a sealing sleeve 2077 is tightly slidably connected to the outer side of the first pair of connectors 2076, and the outer side of the sealing sleeve 2077 is fixedly connected to the connecting frame 2071.

[0058] This design ensures that the chamber above the connecting frame 2071 remains sealed, guaranteeing that the equipment can be used normally.

[0059] Example 8

[0060] This embodiment is an improvement upon the seven implementation examples. Please refer to [link / reference]. Figure 1 , Figure 2, Figure 3 , Figure 4 and Figure 5 Specifically, the connecting frame 2071 has a sliding groove inside, and the connecting frame 2071 is slidably connected to the sliding block 2080 through the sliding groove. The other end of the sliding block 2080 is fixedly connected to the side plate 2074, and the outer side of the side plate 2074 is fixedly connected to the sliding plate 2079.

[0061] The sealing plate 2073, sliding plate 2079, side plate 2074 and sliding block 2080 can form a sealing plate to prevent the chambers on the upper and lower sides of the connecting frame 2071 from connecting or leaking, thus ensuring that the equipment can be used normally.

[0062] Example 9

[0063] This embodiment is an improvement upon the previous eight implementations. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Specifically, sealing layers 2075 are fixedly connected to both the upper and lower sides of the aforementioned side plate 2074, and the outer side of the aforementioned sealing layer 2075 is slidably connected to the connecting frame 2071.

[0064] The sealing layer 2075 ensures that the two chambers inside the connecting frame 2071 are sealed, preventing the two chambers from connecting.

[0065] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A power plant equipment operation fault diagnosis device, characterized in that: It includes an electrical control cabinet (1) and a diagnostic device (2), wherein the diagnostic device (2) is installed at the bottom of the electrical control cabinet (1); The diagnostic device (2) includes a diagnostic box (201) and a rotating door (202). The top of the diagnostic box (201) is fixedly connected to the electrical control cabinet (1). The front side of the diagnostic box (201) is rotatably connected to the rotating door (202), and a handle (204) is installed on the front side of the rotating door (202). A multimeter (205) is fixedly connected inside the diagnostic box (201). A fixed frame (206) is fixedly connected to the bottom of the multimeter (205), and a uniformly distributed connecting component (207) is fixedly connected to the top of the fixed frame (206). The diagnostic box (201) has a top frame (208) fixedly connected to its inner top layer, and the bottom of the top frame (208) has evenly distributed second connectors (209). The connecting assembly (207) includes a connecting frame (2071) and a connecting wire (2072). The bottom of the connecting frame (2071) is fixedly connected to the fixed frame (206). The connecting frame (2071) is provided with a push sealing plate (2073). A push block (2078) is fixedly connected to the front side of the push sealing plate (2073). A sliding plate (2079) is fixedly connected to the rear side of the push sealing plate (2073). The connecting wire (2072) is fixedly connected inside the sliding plate (2079). One end of the connecting wire (2072) is connected to a multimeter (205), and the other end of the connecting wire (2072) is fixedly connected to a first connector (2076). Both sides of the connecting frame (2071) are connected to connecting pipes (211) distributed vertically, and both sides of the connecting frame (2071) are connected to air pipes (212). A sealing sleeve (2077) is tightly slidably connected to the outer side of the first pair of connectors (2076), and the outer side of the sealing sleeve (2077) is fixedly connected to the connecting frame (2071); a sliding groove is provided inside the connecting frame (2071), and a sliding block (2080) is slidably connected to the connecting frame (2071) through the sliding groove; a side plate (2074) is fixedly connected to the other end of the sliding block (2080), and the outer side of the side plate (2074) is fixedly connected to the sliding plate (2079); a sealing layer (2075) is fixedly connected to both the upper and lower sides of the side plate (2074), and the outer side of the sealing layer (2075) is slidably connected to the connecting frame (2071).

2. The power plant equipment operation fault diagnosis device according to claim 1, characterized in that: The top frame (208) is fixedly connected to a nameplate (210) that is evenly distributed and corresponds one-to-one with the second pair of connectors (209) below.

3. The power plant equipment operation fault diagnosis device according to claim 1, characterized in that: An insulating plate (203) arranged horizontally is fixedly connected inside the rotating door (202).

4. The power plant equipment operation fault diagnosis device according to claim 1, characterized in that: Each of the connecting components (207) is provided with a connecting pipe (211), and the connecting components (207) are connected to each other through the connecting pipe (211).

5. The power plant equipment operation fault diagnosis device according to claim 1, characterized in that: Both sides of the connecting components (207) are connected to air pipes (212), and the other end of the air pipes (212) is connected to a pressure gauge (213).

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