CN205246488U - Brick hydrogen diffusance detection device at bottom of molten tin bath - Google Patents
Brick hydrogen diffusance detection device at bottom of molten tin bath Download PDFInfo
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- CN205246488U CN205246488U CN201521010463.2U CN201521010463U CN205246488U CN 205246488 U CN205246488 U CN 205246488U CN 201521010463 U CN201521010463 U CN 201521010463U CN 205246488 U CN205246488 U CN 205246488U
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- bottom brick
- accommodating space
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 239000011449 brick Substances 0.000 title claims abstract description 104
- 238000001514 detection method Methods 0.000 title claims abstract description 75
- 239000001257 hydrogen Substances 0.000 title claims abstract description 68
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 68
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title claims abstract 12
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000565 sealant Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000011819 refractory material Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 description 48
- 238000009792 diffusion process Methods 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model provides a brick hydrogen diffusance detection device at bottom of molten tin bath relates to refractory material capability test technical field, and high leakproofness is carried to the purpose that reaches, improves the testing result degree of accuracy. The main technical scheme who adopts does: the seal pot includes sealed tank body and seal structure, sealed tank body has first accommodation space, second accommodation space, air inlet, gas outlet, first valve, second valve and seal pot mouth, first accommodation space is located the sealed tank body bottom, and the both sides connection of first accommodation space is equipped with the air inlet of first valve and the gas outlet that is equipped with the second valve, the brick sample was with first accommodation space sealed and second accommodation space intercommunication at the bottom of the molten tin bath was placed to second accommodation space bottom, seal structure is penetrating hollow structure, and seal structure's one end is connecting portion, and the brick sample is contradicted at the bottom of the inner wall sealing connection of connecting portion side and seal pot mouth, connecting portion terminal surface and molten tin bath, the pressure detection module is connected with air inlet or gas outlet and is used for detecting first accommodation space internal pressure.
Description
Technical Field
The utility model relates to a refractory material capability test technical field especially relates to a brick hydrogen diffusion degree detection device at bottom of molten tin bath.
Background
The flat glass is usually made byThe tin bath is a key forming device of the float glass production process. Therefore, the quality of the bottom bricks of the tin bath built into the tin bath directly influences whether the tin bath can normally run. In the glass production process, protective gas (such as hydrogen H) needs to be introduced into the tin bath2And nitrogen gas N2) The pressure in the tin bath is kept to a certain degree, so that air can be prevented from being mixed into the tin bath, the tin consumption can be reduced by reducing atmosphere, and the glass quality is improved. Due to hydrogen H2Can be through the diffusion of brick surface gas pocket, brickwork joint and molten tin to the inside depths of brick at the bottom of the molten tin bath, when the diffusion reaches a certain degree, the bubbling phenomenon will appear on the brick surface at the bottom of the molten tin bath, and the bubble come-up can strike unhardened glass, makes glass and the relative surperficial pit that forms of brick at the bottom of the molten tin bath to influence glass's quality, reduced glass's yield. Therefore, the hydrogen diffusivity of the bottom brick of the tin bath needs to be detected to control the bubbling phenomenon on the surface of the bottom brick of the tin bath.
In the prior art, a tin bath bottom brick hydrogen diffusivity detection device is used for detecting the hydrogen diffusivity, the detection principle is that hydrogen is filled into a detection tank filled with a tin bath bottom brick sample under certain pressure, air in the detection tank is discharged through an air outlet, and when the air in the detection tank is exhausted, an air inlet and the air outlet of the detection tank are closed. After a period of time, the pressure in the detection tank gradually decreases and gradually rises after the pressure in the detection tank reaches the lowest point, and the absolute value of the minimum value of the pressure in the detection tank is the hydrogen diffusivity of the tin bath bottom brick. The current tin bath bottom brick hydrogen diffusivity detection device is generally to place tin bath bottom brick in detecting tank, be equipped with the filling layer and seal the surface of filling through the sealing layer with tin bath bottom brick and detecting tank between, be equipped with air inlet and gas outlet again in the bottom of detecting tank, the air inlet is used for filling hydrogen, and the gas outlet is connected the pressure gauge with the atmosphere intercommunication in order to measure the pressure in the detecting tank. However, when filling hydrogen, the pressure in the detection jar is greater than atmospheric pressure, and the tin bath bottom brick can float under the pressure effect and cause the hydrogen in the detection jar to reveal to cause the pressure gauge to detect inaccurately.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a brick hydrogen diffusion degree detection device at bottom of novel structure, and the technical problem that solve is that brick hydrogen diffusion degree detection device at bottom of current molten tin bath leakproofness is relatively poor, and the testing result is inaccurate.
The utility model discloses an aim at and solve its technical problem and adopt following technical scheme to realize:
the utility model provides a brick hydrogen diffusion degree detection device at bottom of molten tin bath, this brick hydrogen diffusion degree detection device at bottom of molten tin bath includes:
the sealing tank comprises a sealing tank body and a sealing structure; wherein,
the sealed tank body is provided with a first accommodating space, a second accommodating space, an air inlet, an air outlet, a first valve, a second valve and a sealed tank opening; the first accommodating space is positioned at the bottom of the sealed tank body, and two sides of the first accommodating space are connected with the air inlet provided with the first valve and the air outlet provided with the second valve; placing a tin bath bottom brick sample at the bottom of the second accommodating space so as to seal the first accommodating space communicated with the second accommodating space;
the sealing structure is a through hollow structure, one end of the sealing structure is a connecting part, the side surface of the connecting part is in sealing connection with the inner wall of the sealing tank opening, and the end surface of the connecting part is abutted against the molten tin bath bottom brick sample;
and the pressure detection module is connected with the air inlet or the air outlet and is used for detecting the pressure in the first accommodating space.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
The apparatus for detecting hydrogen diffusivity of tin bath bottom brick as described above, wherein the sealing can further comprises:
the two gaskets are sleeved on the two opposite sides of the tin bath bottom brick sample and respectively abutted against the bottom of the second accommodating space and the end face of the connecting part.
The apparatus for detecting hydrogen diffusivity of tin bath bottom brick as described above, wherein the sealing can further comprises:
and the sealant is adhered to the tin bath bottom brick sample and the gasket.
The device for detecting the hydrogen diffusivity of the tin bath bottom brick is characterized in that the sealing glue is adhered to the side edge of the tin bath bottom brick sample parallel to the axis of the sealing tank.
The device for detecting the hydrogen diffusivity of the bottom brick of the tin bath, wherein the first valve is a first electromagnetic valve, and the second valve is a second electromagnetic valve; correspondingly, the detection device further comprises: the power supply circuit and the intermediate relay are electrically connected with the power supply circuit;
the intermediate relay is respectively electrically connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be switched on and off.
The device for detecting hydrogen diffusivity of bottom brick of tin bath as described above, wherein the device further comprises:
and the time relay is electrically connected with the power supply circuit, the intermediate relay and the pressure detection module respectively and is used for controlling the air pressure in the first accommodating space to be constant within preset time.
The device for detecting the hydrogen diffusivity of the bottom brick of the tin bath, wherein the pressure detection module is a pressure transmitter; correspondingly, the detection device further comprises:
the display module is respectively electrically connected with the power supply circuit and the pressure transmitter and is used for receiving and displaying the pressure signal detected by the pressure transmitter;
the storage module is electrically connected with the display module and used for storing the pressure value in the first accommodating space displayed by the display module;
and the screening module is electrically connected with the storage module and is used for screening out the lowest pressure value.
The device for detecting hydrogen diffusivity of bottom brick of tin bath as described above, wherein the device further comprises:
the flowmeter is arranged at the air inlet, so that the gas filled into the air inlet flows through the flowmeter, and the flowmeter is electrically connected with the display module and used for measuring the flow of the gas flowing into the air inlet and sending the gas to the display module for display.
The device for detecting hydrogen diffusivity of bottom brick of tin bath as described above, wherein the device further comprises:
the device comprises a shell, a flow control knob, an inflation button, an emptying button, a timing inflation button and a measurement indicator lamp, wherein the shell is provided with the flow control knob, the inflation button, the emptying button, the timing inflation button and the measurement indicator lamp; wherein,
the flow control knob is connected with the flowmeter and used for adjusting the flow of the gas filled into the gas inlet;
the inflation button is connected with the intermediate relay and is used for controlling the intermediate relay to be respectively connected with or disconnected from the first electromagnetic valve and the second electromagnetic valve;
the emptying button is connected with the intermediate relay and is used for controlling the intermediate relay to be connected with or disconnected from the second electromagnetic valve;
the timing inflation button is connected with the time relay and used for controlling the starting or the suspension of the time relay;
and the measurement indicator light is connected with the time relay and used for displaying the working state of the detection device after the time relay is suspended.
The device for detecting the hydrogen diffusivity of the tin bath bottom brick is characterized in that the shell is provided with an opening and a cover plate; the opening corresponds to the sealing tank opening of the sealing tank body, and the cover plate is buckled on the opening.
Borrow by above-mentioned technical scheme, the utility model discloses the structure has following advantage at least:
the technical proposal provided by the utility model seals the first containing space by placing the tin bath bottom brick sample in the second containing space; through being equipped with seal structure, seal structure has connecting portion, and the side of connecting portion and the orificial inner wall sealing connection of sealed of the sealed jar body, the terminal surface of connecting portion contradicts with the molten tin bath bottom brick sample in the second accommodation space. When filling into gas (like hydrogen) in to first accommodation space, the brick sample is static under seal structure's effect at the bottom of the molten tin bath, has prevented that gaseous clearance between brick sample and the sealed tank body from the bottom of the molten tin bath from revealing, than prior art, the utility model provides a brick hydrogen diffusivity detection device leakproofness is better at the bottom of the molten tin bath to it is higher to make the testing result degree of accuracy.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a part of the structure of a device for detecting hydrogen diffusivity of a bottom brick of a tin bath according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the operation of the hydrogen diffusivity detection device for the bottom brick of the tin bath provided by the embodiment of the present invention;
FIG. 3 is a front view of a hydrogen diffusivity detection device for a bottom brick of a tin bath provided by an embodiment of the present invention;
fig. 4 is a top view of the tin bath bottom brick hydrogen diffusivity detection device provided by the embodiment of the utility model.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the technical solution according to the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Fig. 1 is the embodiment of the utility model provides a partial structure schematic diagram of brick hydrogen diffusivity detection device at bottom of molten tin bath, fig. 2 is the embodiment of the utility model provides a brick hydrogen diffusivity detection device at bottom of molten tin bath's working principle picture. The tin bath bottom brick hydrogen diffusivity detection device of this embodiment is used for detecting the hydrogen diffusivity of tin bath bottom brick and controls the bottom brick surface gassing phenomenon of tin bath. Referring to fig. 1 and 2, the hydrogen diffusivity detection device for the bottom brick of the tin bath comprises: a sealed can 10 and a pressure detection module 20. The hermetic vessel 10 includes a hermetic vessel body 11 and a sealing structure 12. The sealed tank 11 has a first receiving space 111, a second receiving space 112, an air inlet 113, an air outlet 114, a first valve 115, a second valve 116, and a sealed tank opening 117. In specific implementation, the material of the sealed tank 11 is copper or stainless steel. The first accommodating space 111 is located at the bottom of the sealed tank 11, and two sides of the first accommodating space 111 are connected to an air inlet 113 provided with a first valve 115 and an air outlet 114 provided with a second valve 116. The bottom of the second accommodating space 112 is placed with the molten tin bath bottom brick sample 1 to seal the first accommodating space 111 communicated with the second accommodating space 112. The sealing structure 12 is a through hollow structure (such as an annular body), one end of the sealing structure 12 is a connecting part 121, the side surface of the connecting part 121 is hermetically connected with the inner wall of the sealing tank opening 117, and the end surface of the connecting part 121 is abutted against the tin bath bottom brick sample 1. The other end of the sealing structure 12 is a handheld portion 122, which is convenient for a user to detach the sealing structure 12 from the sealing can body 11 so as to place the tin bath bottom brick sample 1 into the second accommodating space 112. The pressure detecting module 20 is connected to the air inlet 113 or the air outlet 114, and is configured to detect a pressure in the first accommodating space 111.
In this embodiment, the side surface of the connecting portion and the inner wall of the sealing tank opening are hermetically connected by: the side of the connecting part is provided with threads, the inner wall of the sealing tank opening is provided with threads, the connecting part and the sealing tank opening are connected in a sealing manner through threads so as to realize the sealing connection between the side of the connecting part and the inner wall of the sealing tank opening, the sealing performance of the sealing tank body is ensured, and the measuring accuracy of the tin bath bottom brick hydrogen diffusion degree detecting device is further ensured.
The embodiment of the utility model seals the first containing space by placing the tin bath bottom brick sample in the second containing space; through being equipped with seal structure, seal structure has connecting portion, and the side of connecting portion and the orificial inner wall sealing connection of sealed of the sealed jar body, the terminal surface of connecting portion contradicts with the molten tin bath bottom brick sample in the second accommodation space. When filling into gas (like hydrogen) in to first accommodation space, the brick sample is static under seal structure's effect at the bottom of the molten tin bath, has prevented that gaseous clearance between brick sample and the sealed tank body from the bottom of the molten tin bath from revealing, than prior art, the utility model provides a brick hydrogen diffusivity detection device leakproofness is better at the bottom of the molten tin bath to it is higher to make the testing result degree of accuracy.
Further, in order to enhance the sealing performance of the device for detecting hydrogen diffusivity of a bottom brick of a tin bath, the seal can 10 in the above embodiment may further include: two washers 13 (as shown in figure 1). The two gaskets 13 are sleeved on two opposite sides of the molten tin bath bottom brick sample 1 and are symmetrically arranged. The two gaskets 13 respectively abut against the bottom of the second accommodating space 112 and the connecting portion 121. Wherein, the gasket 13 is made by plastics or rubber material, and the gasket 13 has the recess that is used for placing tin bath bottom brick sample 1, and the middle part of the tank bottom of recess has the through-hole. When the tin bath bottom brick sample 1 sleeved with the gaskets 13 is placed in the second accommodating space 112, one gasket 13 is placed between the tin bath bottom brick sample 1 and the bottom of the second accommodating space 112, and the other gasket 13 is placed between the tin bath bottom brick sample 1 and the end face of the connecting part 121. Because the gasket 13 is made of plastic or rubber, when the gasket 13 is extruded, the gasket 13 is deformed and is in close contact with the end surface of the connecting portion 121 and the bottom of the second receiving space 112, so that gas is prevented from passing through the gasket, and the sealing performance is enhanced.
Further, the seal can 10 described in the above embodiment may further include: the sealant 14 (shown in fig. 1). The sealant 14 bonds the tin bath bottom brick sample 1 and the gasket 13, thereby preventing gas from passing through the contact part of the tin bath bottom brick sample 1 and the gasket 13, and further enhancing the sealing property. The sealant 14 may be silicone adhesive.
Further, to prevent gas from escaping from the sides of the tin bath bottom brick sample 1, the sealant 14 described in the above embodiment is adhered to the sides of the tin bath bottom brick sample 1 parallel to the axis of the seal can 10 (as shown in FIG. 1). Preferably, the thickness of the sealant 14 adhered to the side edge of the tin bath bottom brick sample 1 is 1-2mm, and the sealant 14 is placed for 2-3 days at normal temperature to ensure that the sealant 14 is solidified, so as to ensure that hydrogen passes through the tin bath bottom brick sample 1 along the axis of the sealed tank body 11 when detecting the hydrogen diffusion degree, and prevent the hydrogen from flowing out of the side edge of the tin bath bottom brick sample 1 to cause inaccurate detection results.
Further, as shown in fig. 2, in order to make the controllability of the device for detecting hydrogen diffusivity of the bottom brick of the tin bath strong, the first valve 115 in the above embodiment may be a first electromagnetic valve, and the second valve 116 may be a second electromagnetic valve; correspondingly, the detection device further comprises: power supply circuit 30, and intermediate relay 40 electrically connected to power supply circuit 30. The power supply circuit 30 is used for meeting the requirements of alternating current and direct current of the tin bath bottom brick hydrogen diffusivity detection device. The intermediate relay 40 is electrically connected to the first solenoid valve and the second solenoid valve, respectively, and is configured to control the first solenoid valve and the second solenoid valve to open and close so as to control the filling of the first accommodating space 111 and the evacuation of the gas in the first accommodating space 111. For example, when the power supply circuit 30 supplies a first current to the intermediate relay 40, the first contact of the intermediate relay 40 is turned on, and the first solenoid valve connected to the first contact is turned on, and at this time, the air inlet 113 of the sealed tank 11 is opened; when the power supply circuit 30 supplies the second current to the intermediate relay 40, the second contact of the intermediate relay 40 is turned on, and the second solenoid valve connected to the second contact is turned on, and at this time, the air outlet 114 of the sealed tank 11 is opened.
Further, the detection apparatus in the above embodiment may further include: a time relay 50 (shown in figure 2). And the time relay 50 is electrically connected with the power supply circuit 30, the intermediate relay 40 and the pressure detection module 20, and is used for controlling the air pressure in the first accommodating space 111 to be constant within a preset time. In practical applications, since the intermediate relay 40 is connected to the first solenoid valve and the second solenoid valve, respectively, the operation contacts of the time relay 50 are electrically connected to the first solenoid valve and the second solenoid valve. The working process of the time relay 50 is as follows: when the time relay 50 is energized, the coil is energized to generate a magnetic field, and the armature and the pallet are attracted by the core to instantaneously move downward, so that the instantaneous action contact is switched on. When the piston rod starts to move downwards under the action of the release spring, the rubber film is concave downwards, and the air in the upper air chamber becomes thin, so that the piston rod is slowly descended under the damping action. After a preset time (for example, 2min), the piston rod descends to a certain position, the lever pushes the delay contact to act, so that the acting contact is opened, the moving contact is closed, and the first electromagnetic valve and the second electromagnetic valve are closed after the preset time, that is, the air inlet 113 and the air outlet 114 are opened for the preset time, so that the first accommodating space 111 can be inflated for the preset time to keep the air pressure in the first accommodating space 111 constant in the preset time, and an accurate detection result can be obtained.
Further, as shown in fig. 2, the pressure detecting module 20 in the above embodiment may be a pressure transmitter; correspondingly, the detection device further comprises: display module 60, storage module 70, and screening module 80. The display module 60 is electrically connected to the power supply circuit 30 and the pressure transmitter, respectively, and is configured to receive and display the pressure signal detected by the pressure transmitter. The display module 60 may be a touch screen liquid crystal display. The load cell sensor of the pressure transmitter senses the pressure of the gas in the first accommodating space 111 and converts the pressure parameter of the gas into an electrical signal. The display module 60 structure receives the electrical signal converted by the pressure transmitter and displays the electrical signal, so that a user can know the pressure condition in the first accommodating space 111 in real time through the display screen, and the user can observe the pressure condition conveniently. The storage module 70 is electrically connected to the display module 60 and is configured to store the pressure value in the first accommodating space 111 displayed by the display module 60. The screening module 80 is electrically connected with the storage module 70 and is used for screening out the lowest pressure value currently detected, and the absolute value of the lowest pressure value is the hydrogen diffusivity of the current tin bath bottom brick sample 1. Therefore, the embodiment of the utility model provides a can show in real time and save the testing result, look over for the user and provide convenience.
Further, the detection apparatus in the above embodiment may further include: a flow meter 90 (shown in fig. 2 and 3). The flowmeter 90 is disposed at the gas inlet 113, so that the gas filled in the gas inlet 113 flows through the flowmeter 90, and the flowmeter 90 is electrically connected to the display module 60, and is configured to measure the flow rate of the gas flowing into the gas inlet 113 and send the measured flow rate to the display module 60 for display, i.e., to display the current flow rate of the hydrogen gas introduced into the first accommodating space 111 in real time. In the present embodiment, the flow meter 90 is preferably a rotameter 90, and the span of the rotameter 90 is preferably 5L/min.
Further, as shown in fig. 3 and 4, the detection apparatus in the above embodiment may further include: a housing 100. The sealed tank 10, the pressure detection module 20, the power supply circuit 30, the intermediate relay 40, the time relay 50 and the flow meter 90 which are described in the above embodiments are arranged in the casing 100, and the display module 60, the opening 110, the cover plate 120, the flow control knob 91, the inflation button 1151, the evacuation button 1161, the timing inflation button 51 and the measurement indicator lamp 21 are arranged on the surface of the casing 100. Wherein, the opening 110 corresponds to the sealing tank opening 117 of the sealing tank 11; the cover plate 120 is buckled on the opening 110, so that dust is effectively prevented from entering the sealed tank body 11, and the service life of the tin bath bottom brick hydrogen diffusivity detection device is prolonged; the flow control knob 91 is connected to the flow meter 90 for adjusting the flow rate of the gas charged into the gas inlet 113; the inflation button 1151 is connected to the intermediate relay 40, and is used for controlling the intermediate relay 40 to be connected to or disconnected from the first solenoid valve and the second solenoid valve; the emptying button 1161 is connected with the intermediate relay 40 and is used for controlling the intermediate relay 40 to be connected with or disconnected from the second electromagnetic valve; the timing inflation button 51 is connected with the time relay 50 and is used for controlling the starting or the pause of the time relay 50; the measurement indicator light 21 is connected with the time relay 50 and is used for displaying the working state of the detection device after the time relay 50 is suspended. In this embodiment, flow control, inflation control, evacuation control, timing control, measurement control and the like can be realized through the flow control knob, the inflation button, the evacuation button, the timing inflation button and the measurement indicator lamp, so that the controllability of the tin bath bottom brick hydrogen diffusivity detection device is strong.
In practical application, the specific detection steps are as follows: 1. supplying power to the molten tin bath bottom brick hydrogen diffusivity detection device, starting a touch screen liquid crystal display of the molten tin bath bottom brick hydrogen diffusivity detection device, pressing an evacuation button to open a second electromagnetic valve, and displaying an atmospheric pressure value in the current sealed tank body detected by the pressure transmitter by the touch screen liquid crystal display; 2. opening a hydrogen gas cylinder valve, adjusting a pressure reducing valve (a partial pressure valve) to 0.1MPa, and opening a cover plate on the shell; 3. installing the molten tin bath bottom brick sample in a second accommodating space of the sealed tank body; 4. pressing the inflation button to simultaneously open the first electromagnetic valve and the second electromagnetic valve, namely filling hydrogen into the first accommodating space of the sealed tank body; 5. the flow control knob is adjusted to enable the touch screen liquid crystal display to display that the air pressure detected by the pressure transmitter is 30mmH2O, until the solution is stable for 1-2 min; 6. pressing the timing inflation button to time the time relay (for example, 2min), and continuously filling hydrogen into the first accommodating space of the sealed tank, so as to obtain a timing knotAfter that, the intermediate relay immediately signals the first electromagnetic valve and the second electromagnetic valve to close the first electromagnetic valve and the second electromagnetic valve, and the device enters a detection state; 7. in the detection process, the touch screen liquid crystal display displays the pressure value to the lowest value or exceeds the measuring range of-350 mmH2And after O, manually closing the inflation button, closing the measurement indicator lamp, and recording the detection result and obtaining the lowest pressure value by the touch screen liquid crystal display, wherein the absolute value of the lowest pressure value is the hydrogen diffusion value of the tin bath bottom brick. If the pressure value exceeds the range of the displayed pressure value, the hydrogen diffusion degree of the bottom brick of the tin bath is more than 350mmH2O; 8. pressing down an emptying button to open a second electromagnetic valve for pressure relief, then detaching the sealing structure from the sealing tank body, taking out a tin bath bottom brick sample, and covering a cover plate; if the next tin bath bottom brick sample needs to be detected, only the steps 3-8 need to be repeated, and after a plurality of tin bath bottom brick samples are tested, the change curve of the gas pressure in the sealed tank body along with the time is stored in a touch screen liquid crystal display and can be inquired; 9. and if the test is finished, closing the hydrogen gas cylinder valve, and canceling power supply to the tin bath bottom brick hydrogen diffusivity detection device.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a brick hydrogen diffusivity detection device at bottom of molten tin bath which characterized in that includes:
the sealing tank comprises a sealing tank body and a sealing structure; wherein,
the sealed tank body is provided with a first accommodating space, a second accommodating space, an air inlet, an air outlet, a first valve, a second valve and a sealed tank opening; the first accommodating space is positioned at the bottom of the sealed tank body, and two sides of the first accommodating space are connected with the air inlet provided with the first valve and the air outlet provided with the second valve; placing a tin bath bottom brick sample at the bottom of the second accommodating space so as to seal the first accommodating space communicated with the second accommodating space;
the sealing structure is a through hollow structure, one end of the sealing structure is a connecting part, the side surface of the connecting part is in sealing connection with the inner wall of the sealing tank opening, and the end surface of the connecting part is abutted against the molten tin bath bottom brick sample;
and the pressure detection module is connected with the air inlet or the air outlet and is used for detecting the pressure in the first accommodating space.
2. The tin bath bottom brick hydrogen diffusivity detection device of claim 1, characterized in that the seal pot further comprises:
the two gaskets are sleeved on the two opposite sides of the tin bath bottom brick sample and respectively abutted against the bottom of the second accommodating space and the end face of the connecting part.
3. The tin bath bottom brick hydrogen diffusivity detection device of claim 2, characterized in that the seal pot further comprises:
and the sealant is adhered to the tin bath bottom brick sample and the gasket.
4. The tin bath bottom brick hydrogen diffusivity detection device of claim 3,
and the sealing glue is adhered to the side edge of the tin bath bottom brick sample parallel to the axis of the sealing tank.
5. The tin bath bottom brick hydrogen diffusivity detection device as claimed in any one of claims 1 to 4, wherein the first valve is a first solenoid valve and the second valve is a second solenoid valve; correspondingly, the detection device further comprises: the power supply circuit and the intermediate relay are electrically connected with the power supply circuit;
the intermediate relay is respectively electrically connected with the first electromagnetic valve and the second electromagnetic valve and is used for controlling the first electromagnetic valve and the second electromagnetic valve to be switched on and off.
6. The tin bath bottom brick hydrogen diffusivity detection device of claim 5, characterized in that the detection device further comprises:
and the time relay is electrically connected with the power supply circuit, the intermediate relay and the pressure detection module respectively and is used for controlling the air pressure in the first accommodating space to be constant within preset time.
7. The tin bath bottom brick hydrogen diffusivity detection device of claim 6, characterized in that the pressure detection module is a pressure transmitter; correspondingly, the detection device further comprises:
the display module is respectively electrically connected with the power supply circuit and the pressure transmitter and is used for receiving and displaying the pressure signal detected by the pressure transmitter;
the storage module is electrically connected with the display module and used for storing the pressure value in the first accommodating space displayed by the display module;
and the screening module is electrically connected with the storage module and is used for screening out the lowest pressure value.
8. The tin bath bottom brick hydrogen diffusivity detection device of claim 7, characterized in that the detection device further comprises:
the flowmeter is arranged at the air inlet, so that the gas filled into the air inlet flows through the flowmeter, and the flowmeter is electrically connected with the display module and used for measuring the flow of the gas flowing into the air inlet and sending the gas to the display module for display.
9. The tin bath bottom brick hydrogen diffusivity detection device of claim 8, characterized in that the detection device further comprises:
the device comprises a shell, a flow control knob, an inflation button, an emptying button, a timing inflation button and a measurement indicator lamp, wherein the shell is provided with the flow control knob, the inflation button, the emptying button, the timing inflation button and the measurement indicator lamp; wherein,
the flow control knob is connected with the flowmeter and used for adjusting the flow of the gas filled into the gas inlet;
the inflation button is connected with the intermediate relay and is used for controlling the intermediate relay to be respectively connected with or disconnected from the first electromagnetic valve and the second electromagnetic valve;
the emptying button is connected with the intermediate relay and is used for controlling the intermediate relay to be connected with or disconnected from the second electromagnetic valve;
the timing inflation button is connected with the time relay and used for controlling the starting or the suspension of the time relay;
and the measurement indicator light is connected with the time relay and used for displaying the working state of the detection device after the time relay is suspended.
10. The tin bath bottom brick hydrogen diffusivity detection device of claim 9, characterized in that the housing is provided with an opening and a cover plate; the opening corresponds to the sealing tank opening of the sealing tank body, and the cover plate is buckled on the opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521010463.2U CN205246488U (en) | 2015-12-08 | 2015-12-08 | Brick hydrogen diffusance detection device at bottom of molten tin bath |
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| CN201521010463.2U CN205246488U (en) | 2015-12-08 | 2015-12-08 | Brick hydrogen diffusance detection device at bottom of molten tin bath |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204938A (en) * | 2016-12-20 | 2018-06-26 | 核工业西南物理研究院 | A device for measuring hydrogen diffusion and permeability in tritium-resistant coatings |
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2015
- 2015-12-08 CN CN201521010463.2U patent/CN205246488U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204938A (en) * | 2016-12-20 | 2018-06-26 | 核工业西南物理研究院 | A device for measuring hydrogen diffusion and permeability in tritium-resistant coatings |
| CN108204938B (en) * | 2016-12-20 | 2020-08-21 | 核工业西南物理研究院 | A device for measuring hydrogen diffusion and penetration performance in a tritium barrier coating |
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