CN115041101B - Inhibitor injection device - Google Patents
Inhibitor injection device Download PDFInfo
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- CN115041101B CN115041101B CN202210709093.XA CN202210709093A CN115041101B CN 115041101 B CN115041101 B CN 115041101B CN 202210709093 A CN202210709093 A CN 202210709093A CN 115041101 B CN115041101 B CN 115041101B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention provides an inhibitor injection device comprising: the protective container is provided with a liquid inlet; the first connecting pipe is communicated with the liquid inlet; the first end of the second connecting pipe is detachably connected with one end of the first connecting pipe, which faces away from the protective container; the main blasting element is fixed and plugged between the first connecting pipe and the second connecting pipe; the inhibitor container is provided with a feed inlet, an air outlet and a liquid outlet; the third connecting pipe is communicated with the liquid outlet, and one end of the third connecting pipe, which is back to the inhibitor container, is detachably connected with the second end of the second connecting pipe; the auxiliary blasting element is fixed and plugged between the second connecting pipe and the third connecting pipe; and the pressure equalizing pipe is fixed in the inhibitor container, penetrates through the auxiliary blasting element and extends to the second connecting pipe. By adopting the invention, the whole process of flowing the inhibitor into the protective container does not need to use complex instruments, the structure of the device is simplified, the performance reliability is improved, the response speed is accelerated, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an inhibitor injection device.
Background
In the fields of petrochemical industry, biochemical industry and the like, reaction units are basically included, and a considerable part of the reaction process is accompanied by heat release and steam/non-condensable gas generation. Under normal conditions, the heat and steam/non-condensable gases released by the reactions occurring in the reaction unit are within the process control range. However, under abnormal conditions, such as cooling failure of the reaction unit, excessive feeding, failure of the exhaust valve and the like, the heat released by the reaction in the reaction unit cannot be removed, so that the temperature and pressure of the reaction system rise and rise, the temperature rise of the reaction system can continue to accelerate the reaction, more heat is released, the temperature and pressure of the system continue to rise and rise, and the circulation causes reaction runaway of the reaction unit and even overpressure rupture of the reaction unit.
A common protective measure is to inject a reaction inhibitor into the reaction unit. At present, a commonly used inhibitor injection device mainly utilizes a pressure measuring element and/or a temperature measuring element to detect that a pressure signal or a temperature signal in a reaction unit is abnormal, the pressure signal or the temperature signal is input into an electric control unit, the electric control unit carries out logical operation on a pressure signal or a temperature signal detection value and a set safety value and then outputs a control signal, the control signal is output to an automatic valve, the automatic valve is opened, and therefore an inhibitor in an inhibitor container automatically flows into a protective container by virtue of a potential difference, and the reaction in the protective container is inhibited. However, in the operation process of the inhibitor injection device, the inhibitor can be normally injected based on the normal work of a plurality of instrument elements, so that the problems of complex structure, high manufacturing cost and low performance reliability exist, and particularly, in the occasions possibly causing injuries and deaths of a plurality of people, the physical protection device is preferably adopted according to the industrial standards and specifications.
Disclosure of Invention
Accordingly, the present invention provides an inhibitor injection device. The main blasting element and the auxiliary blasting element are automatically broken under the overpressure condition so as to communicate the inhibitor container and the protective container, so that the inhibitor smoothly flows into the protective container, and the reaction is inhibited from continuing to occur, thereby overcoming the defects of the prior art.
The inhibitor injection device provided by the invention comprises: the protective container is provided with a liquid inlet; the first connecting pipe is communicated with the liquid inlet; the first end of the second connecting pipe is detachably connected with one end of the first connecting pipe, which is back to the protective container; the main blasting element is fixed and plugged between the first connecting pipe and the second connecting pipe; the inhibitor container is provided with a feed inlet, an air outlet and a liquid outlet; the third connecting pipe is communicated with the liquid outlet, and one end of the third connecting pipe, which is back to the inhibitor container, is detachably connected with the second end of the second connecting pipe; the auxiliary blasting element is fixed and plugged between the second connecting pipe and the third connecting pipe; and the pressure equalizing pipe is fixed in the inhibitor container, penetrates through the auxiliary blasting element and extends to the second connecting pipe.
Optionally, the primary blasting element comprises: the first clamp holder is provided with a first mounting hole; and the main rupture disk is fixed in the first mounting hole.
Optionally, the secondary blasting element comprises: the second clamp is provided with a second mounting hole; the pressing piece is arranged in the second mounting hole, is concentric with the second clamp holder and is provided with a third mounting hole, and the pressure equalizing pipe penetrates through the third mounting hole; the auxiliary rupture disk is fixedly connected with the inner wall circumference of the second holder and the outer wall circumference of the pressing disk, and a connecting groove for connecting the pressing disk and the second holder and a circular groove concentrically arranged with the pressing disk are formed in the surface of one side, facing the protective container, of the auxiliary rupture disk.
Optionally, the vertical distance L between the circular groove and the pressing piece is obtained according to the following formula:
wherein is the diameter of the outer ring of the secondary rupture disk; d is the diameter of the inner ring of the secondary rupture disk.
Optionally, the inhibitor injection device further comprises: the fixing flange is sleeved on the pressure equalizing pipe and is fixedly connected with the pressure equalizing pipe; the compression flange is sleeved with the pressure equalizing pipe; the pressing piece is clamped between the pressing flange and the fixed flange.
Optionally, the inhibitor injection device further comprises: and the liquid guide cover is arranged in the second connecting pipe and is communicated with one end, facing the protective container, of the pressure equalizing pipe.
Optionally, the burst pressure of the main rupture disk is obtained according to the following formulaForce P s1 ：
P s1 ＝P max -P b ；
Wherein, P max Is the highest allowable pressure of the gas phase space in the protective container; p b Is the initial pressure of the gas phase space in the inhibitor container.
Optionally, the burst pressure P of the secondary rupture disk is obtained according to the following formula s2 ：
P max -P b -ρgh>P s2 >ρgh；
Wherein ρ is the density of inhibitor in the inhibitor container; g is the acceleration of gravity; h is the height of the level of inhibitor in the inhibitor container.
Optionally, a first flange is connected to an end of the first connecting pipe facing away from the protective container; a first end of the second connecting pipe is connected with a second flange, and the second flange is in bolted connection with the first flange; the primary rupture element is clamped between the second flange and the first flange.
Optionally, a third flange is connected to one end of the third connecting pipe, which faces away from the inhibitor container; the second end of the second connecting pipe is connected with a fourth flange, and the fourth flange is in bolted connection with the third flange; the secondary rupture element is clamped between the fourth flange and the third flange.
Compared with the prior art, the technical scheme provided by the invention at least has the following beneficial effects:
by adopting the inhibitor injection device, the main blasting element and the auxiliary blasting element are automatically broken under the condition of overpressure, so that the inhibitor container and the protective container are communicated, the gas phase spaces in the inhibitor container and the protective container are communicated by means of the pressure equalizing pipe, the inhibitor smoothly flows into the protective container, the inhibition reaction is continuously carried out, complex instruments and instruments are not needed in the whole process, the structure of the device is simplified, the performance reliability is improved, the response speed is accelerated, and the production cost is reduced.
Drawings
FIG. 1 is a schematic view of an inhibitor injection apparatus according to one embodiment of the present invention;
fig. 2 is a schematic view of a secondary blasting element of the inhibitor injection apparatus of fig. 1.
Reference numerals:
1: a protective container; 2: a first connecting pipe; 3: a second connecting pipe; 4: a primary blasting element; 5: a suppressant container; 6: a third connecting pipe; 7: a secondary blasting element; 71: a second gripper; 72: a compression sheet; 73: a secondary rupture disk; 74: connecting grooves; 75: a circular groove; 8: a pressure equalizing pipe; 9: a fixed flange; 10: compressing the flange; 11: a liquid guide cover; 12: a first flange; 13: a second flange; 14: a third flange; 15: and a fourth flange.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
FIG. 1 is a schematic view of an inhibitor injection apparatus according to one embodiment of the present invention; fig. 2 is a schematic view of a secondary blasting element of the inhibitor injection apparatus of fig. 1.
As shown in fig. 1 and 2, the inhibitor injection device includes a shielding container 1, a first connection pipe 2, a second connection pipe 3, a primary blasting element 4, an inhibitor container 5, a third connection pipe 6, a secondary blasting element 7, and a pressure equalizing pipe 8.
The protective container 1 is provided with a liquid inlet; the first connecting pipe 2 is communicated with the liquid inlet; the first end of the second connecting pipe 3 is detachably connected with the end of the first connecting pipe 2, which faces away from the protective container 1; the main blasting element 4 is fixed and sealed between the first connecting pipe 2 and the second connecting pipe 3; the inhibitor container 5 is provided with a feeding hole, an air outlet and a liquid outlet; the third connecting pipe 6 is communicated with the liquid outlet, and one end of the third connecting pipe 6, which is back to the inhibitor container 5, is detachably connected with the second end of the second connecting pipe 3; the auxiliary blasting element 7 is fixed and sealed between the second connecting pipe 3 and the third connecting pipe 6; the pressure equalizing pipe 8 is fixed in the suppressor container 5, penetrates the auxiliary explosion element 7, and extends to the second connecting pipe 3.
When the protective container is used, a working medium is injected into the protective container 1, a certain amount of inhibitor is added into a feed inlet of the inhibitor container 2 through an inhibitor feed pipe before reaction operation is started, gas in the inhibitor container 2 is discharged through an air inlet and outlet pipeline communicated with an air outlet of the inhibitor container 2, so that a certain initial pressure is reached in the inhibitor container 2, then the inhibitor feed pipeline and the air inlet and outlet pipeline are closed, at the moment, the height of the pressure equalizing pipe 8 in the inhibitor container 2 is higher than the liquid level of the inhibitor, and the main blasting element 4 and the auxiliary blasting element 7 separate the inhibitor container 5 from the protective container 1. After the reaction operation of the working medium in the protective container 1 is started, the pressure in the protective container 1 gradually increases along with the reaction, when the pressure increases to the blasting pressure of the main blasting element 4, the main blasting element 4 is broken, the blasting pressure of the auxiliary blasting element 7 is smaller than the blasting pressure of the main blasting element 4, the auxiliary blasting element 7 is broken along with the pressure, the inhibitor in the inhibitor container 5 flows downwards into the protective container 1, the original gas in the protective container 1 rises to the pressure equalizing pipe 8 in the process that the inhibitor flows into the protective container 1, and the pressure equalizing pipe 8 is communicated with the gas phase space in the protective container 1 and the gas phase space in the inhibitor container 5, so that the pressure of the gas phase space in the protective container 1 is equal to the pressure of the gas phase space in the inhibitor container 5, the inhibitor in the inhibitor container 5 can smoothly flow into the protective container 1, and the gas in the protective container 1 can smoothly enter the inhibitor container 5 through the pressure equalizing pipe 8. Enough inhibitor flows into the protective container 1, so that the reaction in the protective container 1 is inhibited from continuing to occur, and the temperature and the pressure in the protective container 1 are prevented from continuing to rise.
By adopting the inhibitor injection device, the main blasting element 4 and the auxiliary blasting element 7 are automatically broken under the condition of overpressure, so that the inhibitor container 5 is communicated with the protective container 1, and the gas phase space in the inhibitor container 5 and the protective container 1 is communicated by means of the pressure equalizing pipe 8, so that the inhibitor smoothly flows into the protective container 1, the inhibition reaction is continued, the whole process does not need to use complicated instruments, the structure of the device is simplified, the performance reliability is improved, the response speed is accelerated, and the production cost is reduced.
In this embodiment, as shown in fig. 1, the protective container 1 is located below, the inhibitor container 5 is located above, the liquid inlet is opened at the upper left portion of the protective container 1 and communicated with the first connecting pipe 2, the feed inlet is opened at the upper left portion of the inhibitor container 5 and communicated with an inhibitor feed pipeline to inject the inhibitor, the gas outlet is opened at the upper right portion of the inhibitor container 5 and communicated with an inlet and outlet pipeline to input or discharge gas, and the liquid outlet is opened at the lower portion of the inhibitor container 5 and communicated with the third connecting pipe 6. The primary blasting element 4 is fixed between the first connecting pipe 2 and the second connecting pipe 3 and blocks the cross sections of the first connecting pipe 2 and the second connecting pipe 3, and the secondary blasting element 7 is fixed between the second connecting pipe 3 and the third connecting pipe 6 and blocks the cross sections of the second connecting pipe 3 and the third connecting pipe 6, so that the inhibitor in the inhibitor container 5 and the working medium in the protective container 1 are isolated in the normal reaction process. The pressure equalizer 8 is installed in the suppressor container 5, penetrates the secondary rupture element 7 downward, and extends into the second connecting pipe 3. In the present embodiment, the inner diameters of the first connection pipe 2, the second connection pipe 3, and the third connection pipe 6 are all 100mm. The inner diameter of the pressure equalizing pipe 8 is not more than 0.1 time of the inner diameter of the third connecting pipe 6, the volume of the gas phase space of the protective container 1 is not less than 1% of the volume of the protective container 1, preferably not less than the volume of the inhibitor in the inhibitor container 5, in the present embodiment, the inner diameter of the pressure equalizing pipe 8 is 8mm, the top of the pressure equalizing pipe 8 in fig. 1 is 150mm above the liquid level of the inhibitor, the volume of the inhibitor in the inhibitor container 5 is 2000L, the volume of the gas phase space of the protective container 1 is 2500L, and the lowest point of the inhibitor container 5 is 2m higher than the highest point of the protective container 1. The specifications of the protective container 1 and the inhibitor container 5 can be adjusted according to practical application, the sizes of the first connecting pipe 2, the second connecting pipe 3, the third connecting pipe 6 and the pressure equalizing pipe 8 can be adjusted, the burst pressure of the main burst element 4 is determined according to the highest allowable pressure of a gas phase space in the protective container 1, the burst pressure of the auxiliary burst element 7 is selected according to the liquid level in the inhibitor container 5 and the burst pressure of the main burst element 4, inhibitors include but are not limited to a cooling quenching inhibitor and a terminating reaction inhibitor, and the inhibitors can be selected according to the characteristics of a working medium in the protective container 1.
Optionally, the primary blasting element 4 comprises a first holder and a primary blasting element. The first clamp holder is provided with a first mounting hole; the main rupture disk is fixed in the first mounting hole.
In this embodiment, the first holder is fixed between the first connecting pipe 2 and the second connecting pipe 3, the inner wall of the first mounting hole is circular, the main rupture disk is circular and fixed in the first mounting hole, and the main rupture disk blocks the cross section of the first connecting pipe 2 and the cross section of the second connecting pipe 3 to isolate the inhibitor container 5 from the protective container 1. According to different reaction conditions in the protective container 1, the main rupture disk can be a rupture disk of any specification meeting the pressure requirement.
Optionally, the secondary rupture element 7 comprises a second holder 71, a compression plate 72 and a secondary rupture plate 73. The second clamp holder 71 is provided with a second mounting hole; the pressing piece 72 is arranged in the second mounting hole, is concentric with the second holder 71, and is provided with a third mounting hole, and the pressure equalizing pipe 8 penetrates through the third mounting hole; the auxiliary rupture disk 73 is fixedly connected with the inner wall circumference of the second holder 71 and the outer wall circumference of the pressing disk 72, and a connecting groove 74 for connecting the pressing disk 72 and the second holder 71 and a circular groove 75 concentrically arranged with the pressing disk 72 are formed in one side surface of the auxiliary rupture disk 73 facing the protective container 1. This arrangement allows the secondary blasting element 7 to be uniformly pressurized and to be ruptured following the rupture of the primary blasting element 4.
In this embodiment, the secondary blasting element 7 is a planar blasting element. As shown in fig. 2, the cross sections of the second holder 71 and the pressing plate 72 are both circular rings, the two are concentrically arranged, the auxiliary rupture disk 73 is integrally circular ring-shaped, the inner wall is welded to the pressing plate 72, and the outer wall is welded to the second holder 71. Eight connecting grooves 74 are uniformly radially formed in the auxiliary rupture disk 73 from the pressing disk 72 to the second holder 71, one circular groove 75 is concentrically formed at a certain distance from the pressing disk 72, and the circular groove 75 penetrates through each connecting groove 74. The connecting groove 74 and the circular groove 75 are weak points to which the secondary rupture disk 73 is weak to break after the primary rupture disk breaks. In this embodiment, the diameter of the inner ring of the secondary rupture disk 73 is 15mm, the diameter of the outer ring is 100mm, and the vertical distance between the circular groove 75 and the pressing disk 72 is 43mm. According to practical application, the number of the connecting grooves 74 is increased along with the increase of the size of the secondary rupture disk 73, the number is in the range of 3-72, the vertical distance between the circular groove 75 and the pressing disk 72 can be adjusted, and the connecting grooves 74 include but are not limited to linear grooves.
Alternatively, the vertical distance L between the circular groove 75 and the pressing piece 72 is obtained according to the following formula:
wherein D is the diameter of the outer ring of the secondary rupture disk 73; d is the diameter of the inner ring of the secondary rupture disk 73.
The vertical distance L between the circular groove 75 and the pressing piece 72, which is obtained according to the above formula, determines the specific arrangement position of the circular groove 75 on the secondary rupture disk 73, so that the secondary rupture disk 73 can be uniformly stressed, and the primary rupture element can be ruptured along with the uniform stress.
Optionally, the inhibitor injection device further comprises a fixing flange 9 and a pressing flange 10. The fixed flange 9 is sleeved with the pressure equalizing pipe 8 and is fixedly connected with the pressure equalizing pipe 8; the pressure equalizing pipe 8 is sleeved with the pressing flange 10; the pressing piece 72 is clamped between the pressing flange 10 and the fixing flange 9. With this arrangement, the secondary blasting element 7 is further limited by the hold-down flange 10 and the fixing flange 9.
In this embodiment, as shown in fig. 1, the fixing flange 9 is sleeved on the pressure equalizing tube 8, and is welded to the outer wall of the pressure equalizing tube 8 at the end of the pressure equalizing tube 8 facing one end of the protective container 1, the pressing piece 72 abuts against the upper end face of the fixing flange 9 in fig. 1, and the pressing flange 10 is sleeved on the pressure equalizing tube 8 and abuts against the upper surface of the pressing piece 72 in the third connecting tube 6. According to practical application, the specific specifications of the fixing flange 9 and the pressing flange 10 can be adjusted as long as the pressing sheet 72 can be clamped.
Optionally, the inhibitor injection device further includes a liquid guiding hood 11, and the liquid guiding hood 11 is disposed in the second connecting pipe 3 and is communicated with one end of the pressure equalizing pipe 8 facing the protective container 1. The cross-sectional area of the liquid guide cover 11 is larger than that of the pressure equalizing pipe 8, so that the inhibitor in the inhibitor container 5 can be guided to smoothly flow into the protective container 1, and the gas in the protective container 1 can be guided to smoothly overflow to the inhibitor container 5 through the liquid guide cover 11 and the pressure equalizing pipe 8.
In this embodiment, as shown in fig. 1, the liquid guiding cover 11 includes a hollow circular truncated cone communicating with the lower end of the pressure equalizing pipe 8 and a hollow cylinder fixedly connected to the free end of the hollow circular truncated cone, which are coaxially disposed. The outer diameter of the hollow cylinder is not less than 0.15 times, preferably not less than 0.2 times, the inner diameter of the third connecting pipe 6, and the distance between the end of the hollow cylinder facing one end of the protective container 1 and the main rupture element is not less than 0.5 times the diameter of the main rupture disk. In this embodiment, the outer diameter of the hollow cylinder is 40mm, the height of the hollow cylinder is 100mm, the total height of the hollow circular truncated cone is 100mm, and the vertical distance between the bottom end of the hollow cylinder and the main rupture disk is 50mm. The specific shape and size of the fluid-guiding cover 11 and the distance between the fluid-guiding cover and the main rupture disk can be adjusted according to the practical application.
Optionally, the burst pressure P of the primary rupture disk is obtained according to the following formula s1 ：
P s1 ＝P max -P b ；
Wherein, P max Is the highest allowable pressure of the gas phase space in the protective container; p b Is the initial pressure of the gas phase space in the inhibitor container.
In this embodiment, P is selected max ＝3.5barG，P b =0barG, the burst pressure P of the primary rupture disk s1 ＝3.5barG。
Alternatively, the burst pressure P of the secondary rupture disk 73 is obtained according to the following formula s2 ：
P max -P b -ρgh>P s2 >ρgh；
Wherein ρ is the density of inhibitor in the inhibitor container 5; g is the acceleration of gravity; h is the height of the level of inhibitor in the inhibitor container 5.
In this embodiment, P is selected max ＝3.5barG，P b ＝0barG，ρ＝1000kg/m 3 (ii) a g =9.8N/kg; h =2m, ρ gh =0.196barA,3.304barA>P s2 >0.196barA, e.g. P s2 ＝0.5barG。
Optionally, a first flange 12 is connected to an end of the first connecting pipe 2 facing away from the protective container 1; a first end of the second connecting pipe 3 is connected with a second flange 13, and the second flange 13 is in bolted connection with the first flange 12; the primary rupture element 4 is clamped between the second flange 13 and the first flange 12. This arrangement simplifies the fixing of the main blasting element 4 to the first connecting pipe 2 and the second connecting pipe 3, and facilitates assembly and disassembly.
In this embodiment, the first flange 12 is welded to the outer wall of the end portion of the first connecting pipe 2 opposite to the end of the protective container 1, the second flange 13 is welded to the outer wall of the end portion of the second connecting pipe 3 facing the end of the protective container 1, a plurality of bolts sequentially pass through a plurality of mounting holes correspondingly formed in the first flange 12 and the second flange 13 to detachably connect the first flange and the second flange, and the main blasting element 4 is clamped between the second flange 13 and the first flange 12.
Optionally, a third flange 14 is connected to an end of the third connecting pipe 6 facing away from the inhibitor container 5; a second end of the second connecting pipe 3 is connected with a fourth flange 15, and the fourth flange 15 is in bolted connection with the third flange 14; the secondary rupture element 7 is clamped between the fourth flange 15 and the third flange 14. This arrangement simplifies the fixing of the secondary blasting element 7 to the third connecting pipe 6 and the second connecting pipe 3, and facilitates assembly and disassembly.
In this embodiment, the third flange 14 and the end portion outer wall of the third connecting pipe 6 facing away from one end of the inhibitor container 5 are welded, the fourth flange 15 and the end portion outer wall of the second connecting pipe 3 facing one end of the inhibitor container 5 are welded, a plurality of bolts sequentially pass through a plurality of mounting holes correspondingly formed in the third flange 14 and the fourth flange 15 to realize detachable connection therebetween, and the auxiliary blasting element 7 is clamped between the third flange 14 and the fourth flange 15.
The use of the inhibitor injection device is further described below:
when the protective container is used, a working medium is injected into the protective container 1, a certain amount of inhibitor is added into a feed inlet of the inhibitor container 2 through an inhibitor feed pipe before reaction operation is started, gas in the inhibitor container 2 is discharged through a gas inlet and outlet pipeline communicated with a gas outlet of the inhibitor container 2, so that a certain initial pressure is achieved in the inhibitor container 2, then the inhibitor feed pipeline and the gas inlet and outlet pipeline are closed, at the moment, the height of the pressure equalizing pipe 8 in the inhibitor container 2 is higher than the liquid level of the inhibitor, and the main blasting element 4 and the auxiliary blasting element 7 isolate the inhibitor container 5 from the protective container 1. After the reaction operation of the working medium in the protective container 1 is started, the pressure in the protective container 1 gradually increases along with the progress of the reaction, when the pressure increases to the bursting pressure of the main bursting disc, the main bursting disc ruptures, the bursting pressure of the auxiliary bursting disc 73 is smaller than the bursting pressure of the main bursting disc, the auxiliary bursting disc 73 ruptures accordingly, the inhibitor in the inhibitor container 5 flows downwards into the protective container 1, and the gas in the protective container 1 rises to the liquid guiding cover 11 and the pressure equalizing tube 8 in the process of flowing the inhibitor into the protective container 1, so that the liquid guiding cover 11 and the pressure equalizing tube 8 communicate the gas phase space in the protective container 1 and the gas phase space in the inhibitor container 5, the gas phase space in the protective container 1 and the gas phase space in the inhibitor container 5 are equal in pressure, the inhibitor in the inhibitor container 5 can smoothly flow into the protective container 1 along the pressure equalizing tube 8 and the liquid guiding cover 11, and the gas in the protective container 1 can smoothly flow into the inhibitor container 5 through the liquid guiding cover 11 and the pressure equalizing tube 8. Enough inhibitor flows into the protective container 1, so that the reaction in the protective container 1 is inhibited from continuing to occur, and the temperature and the pressure in the protective container 1 are prevented from continuing to rise.
By adopting the inhibitor injection device, the main blasting element 4 and the auxiliary blasting element 7 are automatically broken under the condition of overpressure, so that the inhibitor container 5 is communicated with the protective container 1, and the gas phase space in the inhibitor container 5 and the protective container 1 is communicated by means of the pressure equalizing pipe 8, so that the inhibitor smoothly flows into the protective container 1, the inhibition reaction is continuously performed, the whole process does not need to use complicated instruments, the structure of the device is simplified, the performance reliability is improved, the response speed is accelerated, and the production cost is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An inhibitor injection device, comprising:
the protective container is provided with a liquid inlet;
the first connecting pipe is communicated with the liquid inlet;
the first end of the second connecting pipe is detachably connected with the end, back to the protective container, of the first connecting pipe;
the main blasting element is fixed and plugged between the first connecting pipe and the second connecting pipe;
the inhibitor container is provided with a feed inlet, an air outlet and a liquid outlet;
the third connecting pipe is communicated with the liquid outlet, and one end of the third connecting pipe, which is back to the inhibitor container, is detachably connected with the second end of the second connecting pipe;
the auxiliary blasting element is fixed and plugged between the second connecting pipe and the third connecting pipe;
and the pressure equalizing pipe is fixed in the inhibitor container, penetrates through the auxiliary blasting element and extends to the second connecting pipe.
2. The inhibitor injection apparatus of claim 1, wherein said primary blasting element comprises:
the first clamp holder is provided with a first mounting hole;
and the main rupture disk is fixed in the first mounting hole.
3. Inhibitor injection apparatus according to claim 1 or 2, in which the secondary blasting element comprises:
the second clamp holder is provided with a second mounting hole;
the pressing piece is arranged in the second mounting hole, is concentric with the second clamp holder and is provided with a third mounting hole, and the pressure equalizing pipe penetrates through the third mounting hole;
the auxiliary rupture disk is fixedly connected with the inner wall circumference of the second holder and the outer wall circumference of the pressing disk, and a connecting groove for connecting the pressing disk and the second holder and a circular groove concentrically arranged with the pressing disk are formed in the surface of one side, facing the protective container, of the auxiliary rupture disk.
4. The inhibitor injection apparatus of claim 3, wherein the vertical distance L between said circular groove and said compression tab is obtained according to the following formula:
wherein D is the diameter of the outer ring of the auxiliary rupture disk;
d is the diameter of the inner ring of the secondary rupture disk.
5. The inhibitor injection device according to claim 3, further comprising:
the fixing flange is sleeved on the pressure equalizing pipe and is fixedly connected with the pressure equalizing pipe;
the compression flange is sleeved with the pressure equalizing pipe;
the pressing sheet is clamped between the pressing flange and the fixing flange.
6. The inhibitor injection device according to claim 1 or 2, further comprising:
and the liquid guide cover is arranged in the second connecting pipe and is communicated with one end, facing the protective container, of the pressure equalizing pipe.
7. Inhibitor injection device according to claim 2, wherein the burst pressure P of the primary rupture disk is obtained according to the following formula s1 ：
P s1 ＝P max -P b ；
Wherein, P max Is the highest allowable pressure of the gas phase space in the protective container;
P b is the initial pressure of the gas phase space in the suppressant container.
8. Inhibitor injection device according to claim 3, wherein the burst pressure P of the secondary rupture disk is obtained according to the following formula s2 ：
P max -P b -ρgh＞P s2 ＞ρgh；
Wherein ρ is the density of inhibitor in the inhibitor container;
g is the acceleration of gravity;
h is the height of the liquid level of suppressant in the suppressant container.
9. The inhibitor injection device according to claim 1 or 2, characterized in that:
one end of the first connecting pipe, which faces away from the protective container, is connected with a first flange;
a first end of the second connecting pipe is connected with a second flange, and the second flange is in bolted connection with the first flange;
the primary rupture element is clamped between the second flange and the first flange.
10. The inhibitor injection device according to claim 1 or 2, characterized in that:
one end of the third connecting pipe, which is back to the inhibitor container, is connected with a third flange;
the second end of the second connecting pipe is connected with a fourth flange, and the fourth flange is in bolted connection with the third flange;
the secondary rupture element is clamped between the fourth flange and the third flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210709093.XA CN115041101B (en) | 2022-06-22 | 2022-06-22 | Inhibitor injection device |
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| CN115041101B true CN115041101B (en) | 2023-03-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281382A (en) * | 1997-11-11 | 2001-01-24 | 巴斯福股份公司 | Device for feeding fluid into container |
| CN203469954U (en) * | 2013-09-24 | 2014-03-12 | 江苏开磷瑞阳化工股份有限公司 | Device for adding re-stabilization inhibitor into acrylic acid |
| DE102013007298A1 (en) * | 2013-04-26 | 2014-10-30 | Basf Se | Process and supply unit for restabilization of radically polymerizable monomers |
| CN206996581U (en) * | 2017-07-18 | 2018-02-13 | 山西大同大学 | A kind of explosion-proof reactor of chemical industry |
| WO2022122017A1 (en) * | 2020-12-11 | 2022-06-16 | 西南石油大学 | High-temperature and high-pressure drilling fluid inhibition evaluation device and use method therefor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10206089A1 (en) * | 2002-02-13 | 2002-08-14 | Zimmer Ag | bursting |
| US7004187B2 (en) * | 2003-11-04 | 2006-02-28 | Andrew Hoffman | Line pressure diverter apparatus |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281382A (en) * | 1997-11-11 | 2001-01-24 | 巴斯福股份公司 | Device for feeding fluid into container |
| DE102013007298A1 (en) * | 2013-04-26 | 2014-10-30 | Basf Se | Process and supply unit for restabilization of radically polymerizable monomers |
| CN203469954U (en) * | 2013-09-24 | 2014-03-12 | 江苏开磷瑞阳化工股份有限公司 | Device for adding re-stabilization inhibitor into acrylic acid |
| CN206996581U (en) * | 2017-07-18 | 2018-02-13 | 山西大同大学 | A kind of explosion-proof reactor of chemical industry |
| WO2022122017A1 (en) * | 2020-12-11 | 2022-06-16 | 西南石油大学 | High-temperature and high-pressure drilling fluid inhibition evaluation device and use method therefor |
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| CN115041101A (en) | 2022-09-13 |
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