A valve chamber monitoring system

Abstract

The disclosed embodiment provides a valve cavity monitoring system, which relates to the technical field of monitoring systems. To solve the technical problem that the internal conditions of the valve cavity of the hot blast valve of a blast furnace cannot be observed in the prior art, the valve cavity monitoring system includes a display device, an image acquisition device and a control device. The image acquisition device is installed on the valve body through an installation component that is at least partially inserted into the valve cavity. The image acquisition device includes a collection probe for collecting image information in the valve cavity. The installation component includes a cooling sleeve, and the collection probe is arranged in the cooling sleeve. The control device is electrically connected to the image acquisition device and the display device respectively. The control device receives the image information and sends the image information to the display device. The valve cavity monitoring system can detect and feedback to the user in a timely manner when there are problems such as faults and water leakage inside the valve cavity of the valve body, and the user can intuitively obtain the image information in the valve cavity through the display device, which effectively avoids the occurrence of production stoppage due to valve body failure.

Description

Technical Field

[0001] This patent relates to the technical field of a monitoring system, and in particular to a valve cavity monitoring system. Background Art

[0002] At present, the working environment of valves used in industry is often harsh environment such as high pressure or high temperature, which is very easy to damage the valve body and reduce the service life of the valve body. It is difficult to find the fault of the valve body in time, which leads to the complete damage of the valve body. It takes a certain amount of time to repair or replace the valve body, resulting in reduced production efficiency. In particular, the hot air valve used in the hot air furnace system is installed on the hot air pipeline of the hot air furnace system of the blast furnace ironmaking in the metallurgical industry. It is a cut-off device used to control the opening and closing of the pipeline during the combustion and air supply periods of the hot air furnace. Its working medium is hot air with a temperature of 1300℃ and a pressure of about 0.50MPa.

[0003] The hot air valve is a steel plate welded structure. The main body consists of three parts: valve body, valve cover and valve plate. The valve cavity is equipped with amorphous refractory castables. When working, the hot air valve uses circulating cooling water for forced cooling. The hot air valve is a closed high-temperature, high-pressure closed container with harsh working conditions and is easily damaged. In the early stage of damage, only a small amount of cooling water leaks inside the valve cavity and cannot be discovered; when it is in the later stage of damage, when a large amount of cooling water leaks in the valve cavity, the blast furnace can only be shut down unplanned for emergency replacement of the valve, which will seriously reduce the production efficiency of the blast furnace. Summary of the invention

[0004] In view of the above technical problems existing in the prior art, the present disclosure provides a valve cavity monitoring system.

[0005] The present disclosure provides a valve cavity monitoring system for monitoring a valve cavity of a valve body, comprising:

[0006] Display device;

[0007] An image acquisition device is mounted on the valve body through a mounting assembly at least partially inserted into the valve cavity, the image acquisition device comprises a collection probe for collecting image information in the valve cavity, the mounting assembly comprises a cooling sleeve, and the collection probe is arranged in the cooling sleeve;

[0008] A control device is electrically connected to the image acquisition device and the display device respectively, and the control device receives the image information and sends the image information to the display device.

[0009] In some embodiments, the cooling sleeve comprises an outer pipe and an inner pipe disposed inside the outer pipe, a cooling cavity is formed between the outer pipe and the inner pipe, and the acquisition probe is disposed inside the inner pipe;

[0010] The cooling sleeve has a first end extending into the valve cavity, and the image acquisition device also includes a probe viewing window arranged on the first end of the cooling sleeve and a perspective piece arranged on the probe viewing window, so that the acquisition probe can collect the image information through the perspective piece.

[0011] In some embodiments, the image acquisition device also includes a cleaning component for cleaning the outer surface of the perspective piece, the cleaning component includes a gas pipe that is at least partially located in the cooling chamber, the air inlet end of the gas pipe is connected to an external air source, the air outlet end of the gas pipe passes through the first end of the external pipe, and the air outlet end is arranged relative to the outer surface of the perspective piece.

[0012] In some embodiments, the valve cavity monitoring system also includes the installation assembly, and the installation assembly also includes a valve and a first mounting plate arranged on the cooling sleeve, the valve is arranged relative to the collection probe away from the first end of the cooling sleeve, and the first mounting plate is used to install the valve.

[0013] In some embodiments, a plane chamfer is provided at the first end of the cooling sleeve extending into the valve cavity, and a probe viewing window and a perspective member provided on the probe viewing window are provided on the plane chamfer.

[0014] In some embodiments, the image acquisition device also includes a camera electrically connected to the acquisition probe, the camera is used to collect image information acquired by the acquisition probe, the camera housing is provided with a camera protective cover, and the camera protective cover is fixedly connected to the second end of the cooling sleeve.

[0015] In some embodiments, the cooling sleeve also includes a water inlet, a water outlet and a gas interface arranged on the outer pipe and located between the first mounting plate and the camera, the water inlet and the water outlet are connected to the cooling cavity, and the gas interface is connected to the air inlet end of the gas pipe.

[0016] In some embodiments, the control device includes a field control cabinet, the camera is electrically connected to the field control cabinet, a display device is embedded in the field control cabinet, the field control cabinet receives image information collected by the camera, and sends the image information to the display device.

[0017] In some embodiments, the image acquisition device further includes a connecting tube, the camera is mounted on a first end of the connecting tube, there are multiple acquisition probes, and the multiple acquisition probes are arranged at a second end of the connecting tube.

[0018] In some embodiments, the mounting assembly further includes a cover plate buckled onto the outer side of the plane chamfer, the cover plate being provided with a through groove corresponding to the probe viewing window, and the cover plate being provided with a groove for accommodating the gas pipeline on one side close to the plane chamfer.

[0019] Compared with the prior art, the beneficial effect of the embodiments of the present disclosure is that the present disclosure can monitor the internal conditions of the valve cavity of the valve body in real time through a valve cavity monitoring system, allowing on-site technicians to quickly and easily grasp the use of the valve body. The valve cavity monitoring system can promptly detect and feedback to the user when there are problems such as failures and water leakage inside the valve cavity of the valve body, and the user can intuitively obtain the image information inside the valve cavity through the display device. The user can reasonably arrange the replacement of the valve body within the planned maintenance cycle, effectively avoiding the occurrence of additional shutdowns due to valve body failures in the industrial production line using the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0021] Figure 1 This is a schematic diagram of the installation of the valve cavity monitoring system according to an embodiment of the present disclosure;

[0022] Figure 2 Another installation diagram of the valve cavity monitoring system according to the embodiment of the present disclosure;

[0023] Figure 3 for Figure 2 A partial enlarged view of part I;

[0024] Figure 4 It is a schematic diagram of the installation structure of the image acquisition device and the installation assembly of the valve cavity monitoring system according to the embodiment of the present disclosure;

[0025] Figure 5 This is a schematic diagram of the structure of an image acquisition device of a valve cavity monitoring system according to an embodiment of the present disclosure;

[0026] Figure 6 This is a schematic diagram of the structure of the installation assembly of the valve cavity monitoring system according to an embodiment of the present disclosure;

[0027] Figure 7 for Figure 6 A partial enlarged view of part II;

[0028] Figure 8 for Figure 6 A partial enlarged view of part III.

[0029] The components indicated by the reference numerals in the figures are:

[0030] 1-valve body; 2-valve cavity; 3-valve; 4-installation assembly; 401-water inlet; 402-water outlet; 403-first installation plate; 404-external pipeline; 405-cooling cavity; 406-inner pipeline; 407-plane chamfer; 408-cover plate; 5-display device; 6-control device; 7-image acquisition device; 701-acquisition probe; 702-gas pipeline; 703-connecting pipe; 704-gas interface; 705-camera protective cover; 706-perspective piece; 707-camera; 8-field control cabinet. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail below in conjunction with the drawings and specific implementation methods. The embodiments of the present disclosure are further described in detail below in conjunction with the drawings and specific implementation methods, but are not intended to limit the present disclosure.

[0032] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other device without an intermediate device, or may not be directly connected to the other device but have an intermediate device.

[0034] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] The present disclosure provides a valve cavity monitoring system. Figures 1 to 8 The valve cavity monitoring system is used to monitor the valve cavity 2 of the valve body 1. The valve cavity monitoring system includes a display device 5, an image acquisition device 7, and a control device 6. The image acquisition device 7 is installed on the valve body 1 through a mounting assembly 4 at least partially inserted into the valve cavity 2. The image acquisition device 7 includes a collection probe 701 for collecting image information in the valve cavity 2. The mounting assembly 4 includes a cooling sleeve, and the collection probe 701 is arranged in the cooling sleeve. The control device 6 is electrically connected to the image acquisition device 7 and the display device 5 respectively. The control device 6 receives the image information and sends the image information to the display device 5.

[0037] Specifically, the present disclosure sets a display device 5, an image acquisition device 7 and a control device 6. The image acquisition device 7 includes an acquisition probe 701 for acquiring image information in the valve cavity 2. The control device 6 receives the image information and sends the image information to the display device 5. The internal condition of the valve cavity 2 of the valve body 1 can be monitored in real time, so that the on-site technicians can quickly and easily master the use of the valve body 1. The valve cavity monitoring system can timely discover and feedback to the user when there are problems such as failures and water leakage inside the valve cavity 2 of the valve body 1, and the user can intuitively obtain the image information in the valve cavity 2 through the display device 5. The user can reasonably arrange the replacement of the valve body 1 within the planned maintenance cycle, effectively avoiding the occurrence of additional shutdowns caused by valve body 1 failures in the industrial production line using the valve body 1, thereby improving production efficiency. At the same time, the valve cavity monitoring system proposed in the present disclosure is suitable for valve bodies in different working conditions, especially hot blast valves in blast furnace systems.

[0038] In some embodiments, the cooling sleeve includes an outer pipe 404 and an inner pipe 406 disposed in the outer pipe 404, a cooling cavity 405 is formed between the outer pipe 404 and the inner pipe 406, and the acquisition probe 701 is disposed in the inner pipe 406. The cooling sleeve has a first end extending into the valve cavity 2, and the image acquisition device 7 also includes a probe window disposed on the first end of the cooling sleeve and a perspective member 706 disposed on the probe window, so that the acquisition probe 701 can acquire image information through the perspective member 706.

[0039] Specifically, in order to ensure that the acquisition probe 701 in a high temperature environment can work normally, the above-mentioned cooling sleeve is set, and the coolant enters the cooling chamber 405, so that the acquisition probe 701 can work within a normal temperature range; the acquisition probe 701 observes the situation in the valve chamber 2 through the perspective piece 706. By setting the perspective piece 706, the valve chamber 2 and the acquisition probe 701 can be isolated, so that the acquisition probe 701 can be better cooled by the coolant in the cooling sleeve, and at the same time, it will not hinder the acquisition probe 701 from observing the internal situation of the valve chamber 2. The above-mentioned perspective piece 706 is made of high-temperature resistant quartz glass; the coolant in the cooling chamber 405 can be cooling water.

[0040] In some embodiments, the image acquisition device 7 also includes a cleaning component for cleaning the outer surface of the perspective piece 706, and the cleaning component includes a gas pipeline 702 that is at least partially located in the cooling chamber 405, and the air inlet end of the gas pipeline 702 is connected to an external air source, and the air outlet end of the gas pipeline 702 passes through the first end of the outer pipeline 404, and the air outlet end is arranged relative to the outer surface of the perspective piece 706.

[0041] Specifically, since the working environment of the valve cavity 2 of the valve body 1 used in industry is relatively bad, the valve cavity 2 is a high-temperature, high-pressure, dusty working environment, and the dust in the valve cavity 2 is very easy to fall on the surface of the perspective piece 706, causing the acquisition probe 701 to be unable to clearly observe the situation in the valve cavity 2. By setting the above-mentioned cleaning component, the dust falling on the perspective piece 706 can be effectively cleaned. Further, in order to prevent danger from occurring inside the valve cavity 2, an inert gas such as nitrogen is used for purging. The external nitrogen gas source is purged through the gas pipeline 702 to the outer surface of the perspective piece 706 in the valve cavity 2, which not only ensures that the purging gas will not react with the substances in the valve cavity 2, ensuring safety, but also ensures the cleanliness of the surface of the perspective piece 706.

[0042] In some embodiments, the valve cavity monitoring system also includes an installation component 4, which also includes a valve 3 and a first installation plate 403 arranged on the cooling sleeve. The valve 3 is arranged at the first end of the cooling sleeve away from the acquisition probe 701. The first installation plate 403 is used to install the valve 3. When the image acquisition device 7 is installed, the valve 3 is opened so that the acquisition probe 701 of the image acquisition device 7 passes through the valve 3 and is installed in the cooling sleeve.

[0043] Specifically, in order to prevent the image acquisition device 7 from being damaged during transportation of the valve body 1, the acquisition probe 701 is not installed together with the valve body 1 during transportation. After the valve body 1 is installed after arriving at the site, the valve 3 fixedly connected to the valve body 1 is opened, and the acquisition probe 701 is inserted through the through hole of the valve 3. Then, the acquisition probe 701 is connected to the on-site control cabinet and the control of the central control room, so that the internal situation of the valve cavity 2 can be monitored in real time on-site and in the central control room.

[0044] In some embodiments, a plane chamfer 407 is provided at the first end of the cooling sleeve extending into the valve cavity 2 , and a probe viewing window and a perspective member 706 provided on the probe viewing window are provided on the plane chamfer 407 .

[0045] Specifically, the plane chamfer 407 can be provided to facilitate installation of the perspective member 706 , which is beneficial for the acquisition probe 701 to observe the situation in the valve cavity 2 .

[0046] In some embodiments, the image acquisition device 7 also includes a camera 707 electrically connected to the acquisition probe 701, and the camera 707 is used to collect image information acquired by the acquisition probe 701. The camera 707 is provided with a camera protective cover 705, and the camera protective cover 705 is fixedly connected to the second end of the cooling sleeve.

[0047] Specifically, the camera protective cover 705 can prevent external impurities from contaminating the camera 707, thereby ensuring the normal use of the camera 707. Figure 4 As shown, the first end of the cooling jacket is at the plane chamfer 408, and the position away from the first end is the second end of the cooling jacket.

[0048] In some embodiments, the cooling sleeve also includes a water inlet 401, a water outlet 402 and a gas interface 704 arranged on the outer pipe 404 and located between the first mounting plate 403 and the camera 707, the water inlet 401 and the water outlet 402 are connected to the cooling chamber 405, and the gas interface 704 is connected to the air inlet end of the gas pipe 702.

[0049] Specifically, during operation, the coolant is introduced into the cooling chamber 405 from the water inlet 401 and the acquisition probe 701 is cooled, and the coolant is discharged from the water outlet 402 to achieve the purpose of cooling the acquisition probe 701; the cooling sleeve is welded by steel plate. The external gas source is connected to the gas interface 704 to supply gas to the gas pipeline 702 to complete the purpose of cleaning the perspective member 706; the water inlet 401, the water outlet 402 and the gas interface 704 are located between the first mounting plate 403 and the camera 707, that is, the water inlet 401, the water outlet 402 and the gas interface 704 are located outside the valve 3, and such a position facilitates the external coolant and gas source to be connected to the water inlet 401, the water outlet 402 and the gas interface 704.

[0050] In some embodiments, Figure 1 As shown, the control device 6 includes a field control cabinet 8, the camera 707 is electrically connected to the field control cabinet 8, and a display device 5 is embedded in the field control cabinet 8. The field control cabinet 8 receives image information collected by the camera 707 and sends the image information to the display device 5.

[0051] Specifically, during operation, the installation component 4 is installed together with the image acquisition device 7 into the hot air valve cavity 2, and connected to the field control cabinet 8 through a signal cable. Preferably, in order to ensure the quality of signal transmission, the length of the signal cable between the field control cabinet 8 and the image acquisition device 7 needs to be ≤70m. Each field control cabinet 8 can centrally control four groups of image acquisition devices 7. The embedded display device 5 on the front panel of the field control cabinet 8 is a 10.4-inch industrial monitor, which can display the monitoring images in each valve cavity 2 in real time with a single screen / four screens, and adjust the camera parameters according to the working conditions in the valve cavity 2 to achieve a clear image. Each channel can be controlled separately. Each channel image can be enlarged and displayed separately, which is convenient for field technicians to install, debug and analyze faults. The field control cabinet 8 can be connected to the central control room by an external optical fiber and introduced into the large monitoring screen in the central control room for display, and can be burned and saved on the hard disk.

[0052] In some embodiments, the image acquisition device 7 further includes a connecting tube 703 , a camera 707 is mounted on a first end of the connecting tube 703 , and there are multiple acquisition probes 701 , which are arranged at a second end of the connecting tube 703 .

[0053] Specifically, the connecting tube 703 can support the acquisition probe 701, and its internal wiring facilitates the electrical connection between the camera 707 and the acquisition probe 701, and multiple acquisition probes 701 can be installed on one connecting tube 703 to achieve the purpose of standby and timely replacement of the acquisition probe 701. The above-mentioned connecting tube 703 can be a hard pipe.

[0054] In some embodiments, the mounting assembly 4 also includes a cover plate 408 buckled onto the outer side of the plane chamfer 407, a through groove corresponding to the probe viewing window is opened on the cover plate 408, and a groove for accommodating the gas pipeline 702 is opened on the side of the cover plate 408 close to the plane chamfer 407.

[0055] Specifically, since the gas pipeline 702 is filled with gas when the surface of the perspective piece 706 is cleaned, part of the gas pipeline 702 in the valve chamber 2 is easily lifted up, resulting in the inability to clean the surface of the perspective piece 706. Therefore, a cover plate 408 is provided. By providing the cover plate 408, the gas pipeline 702 can be prevented from lifting up, thereby ensuring the effect of cleaning the perspective piece 706.

[0056] In some embodiments, the valve cavity monitoring system may further include a network switch, a hard disk recorder, and a large-screen display screen. The network switch is connected to the field control cabinet to obtain image information. The hard disk recorder is connected to the network switch to save the image information collected by the probe 701 to the hard disk so that the user can view the image information at any time. The large-screen display screen is connected to the network switch to display the above image information.

[0057] In addition, although exemplary embodiments have been described herein, the scope includes any and all embodiments based on the present disclosure with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0058] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present disclosure. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present disclosure may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present disclosure should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0059] The above embodiments are only exemplary embodiments of the present disclosure and are not intended to limit the present disclosure. The protection scope of the present disclosure is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present disclosure within the essence and protection scope of the present disclosure, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present disclosure.

Claims

1. A valve cavity monitoring system for monitoring the valve cavity of a valve body, characterized in that: include: Display device; An image acquisition device, which is mounted on the valve body through a mounting assembly at least partially inserted into the valve cavity, the image acquisition device comprising a collection probe for collecting image information in the valve cavity, the mounting assembly comprising a cooling sleeve, and the collection probe is arranged in the cooling sleeve; The cooling sleeve comprises an outer pipe and an inner pipe arranged in the outer pipe, a cooling cavity is formed between the outer pipe and the inner pipe, and the acquisition probe is arranged in the inner pipe; The cooling sleeve has a first end extending into the valve cavity, and the image acquisition device further includes a probe window provided on the first end of the cooling sleeve and a perspective piece provided on the probe window, so that the acquisition probe acquires the image information through the perspective piece; The image acquisition device further includes a cleaning assembly for cleaning the outer surface of the perspective member, the cleaning assembly includes a gas pipeline at least partially located in the cooling cavity, an air inlet end of the gas pipeline is connected to an external air source, an air outlet end of the gas pipeline passes through the first end of the external pipeline, and the air outlet end is arranged relative to the outer surface of the perspective member; The mounting assembly further comprises a valve and a first mounting plate arranged on the cooling sleeve, the valve being arranged relative to the acquisition probe and away from the first end of the cooling sleeve, and the first mounting plate being used for mounting the valve; A plane chamfer is provided at the first end of the cooling sleeve extending into the valve cavity, and a probe viewing window and a perspective member provided on the probe viewing window are provided on the plane chamfer; The mounting assembly further comprises a cover plate buckled on the outer side of the plane chamfer, the cover plate is provided with a through slot corresponding to the probe viewing window, and a groove for accommodating the gas pipeline is provided on a side of the cover plate close to the plane chamfer, and the cover plate is used to prevent the gas pipeline from tilting; A control device, which is electrically connected to the image acquisition device and the display device respectively, and the control device receives the image information and sends the image information to the display device; During transportation, the collection probe is not installed together with the valve body. After the valve body is installed after arriving at the site, the valve fixedly connected to the valve body is opened to allow the collection probe to be inserted through the through hole of the valve.

2. The valve chamber monitoring system according to claim 1, characterized in that: The image acquisition device also includes a camera electrically connected to the acquisition probe, the camera is used to collect image information acquired by the acquisition probe, the camera housing is provided with a camera protective cover, and the camera protective cover is fixedly connected to the second end of the cooling sleeve.

3. The valve chamber monitoring system according to claim 2, characterized in that: The cooling sleeve also includes a water inlet, a water outlet and a gas interface arranged on the outer pipe and located between the first mounting plate and the camera, the water inlet and the water outlet are connected to the cooling cavity, and the gas interface is connected to the air inlet end of the gas pipe.

4. The valve chamber monitoring system according to claim 2, characterized in that: The control device includes a field control cabinet, the camera is electrically connected to the field control cabinet, a display device is embedded in the field control cabinet, the field control cabinet receives image information collected by the camera, and sends the image information to the display device.

5. The valve chamber monitoring system according to claim 2, characterized in that: The image acquisition device further comprises a connecting tube, the camera is mounted on a first end of the connecting tube, there are a plurality of acquisition probes, and the plurality of acquisition probes are arranged on a second end of the connecting tube.

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