CN105443986A - Pressure relief device and air conditioner provided with pressure relief device - Google Patents
Pressure relief device and air conditioner provided with pressure relief device Download PDFInfo
- Publication number
- CN105443986A CN105443986A CN201511009095.4A CN201511009095A CN105443986A CN 105443986 A CN105443986 A CN 105443986A CN 201511009095 A CN201511009095 A CN 201511009095A CN 105443986 A CN105443986 A CN 105443986A
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- Prior art keywords
- pressure relief
- pressure
- section
- relief device
- release passage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a pressure relief device and an air conditioner provided with the pressure relief device. The pressure relief device comprises a base body (10), wherein the base body (10) is provided with a first pressure relief channel (11); the first pressure relief channel (11) is internally provided with a fusible alloy (20) plugging the first pressure relief channel (11); the base body (10) is further provided with a second pressure relief channel (12); the second pressure relief channel (12) is internally provided with a plugging piece (30); the plugging piece (30) is in a plugging position plugging the second pressure relief channel (12) in a free state; and when pressure in the second pressure relief channel (12) reaches a predetermined value, the plugging piece (30) is in a pressure relief position avoiding the second pressure relief channel (12). With the adoption of the technical scheme, the problem that a fusible plug can only be opened by temperature control in the prior art can be solved effectively.
Description
Technical field
The present invention relates to pressure relief device technical field, in particular to a kind of pressure relief device and the air conditioner with it.
Background technique
At present, fusible plug is a kind of a kind of safety installations be arranged on equipment to make pressure vessel safety run.As shown in Figure 1, the normally used fusible plug of air conditioner industry comprises cock body 1, and above-mentioned cock body 1 has through hole 2, is perfused with low melting alloy 3 in through hole 2, carries out action by the flowing of low melting alloy 3 or fusing.Particularly, when the temperature of the medium (as refrigeration agent) in air-conditioner set pipe-line system is elevated to a certain degree, low melting alloy 3 can be made to melt, through hole 2 is opened, medium in pipe-line system is discharged, thus air-conditioner set pipe-line system is played to the effect of pressure release, prevent the major accidents such as blast.
But just can open when the medium temperature of above-mentioned fusible plug only in air-conditioner set pipe-line system exceedes the fusing point of low melting alloy 3, if when the pressure in pipe-line system is high, and when the temperature of medium does not exceed standard, above-mentioned fusible plug can not work.Meanwhile, the media such as the refrigeration agent of above-mentioned fusible plug when opening in pipe-line system are directly discharged from through hole 2, and rapid vaporization after refrigeration agent discharge, easy frostbite operator, also exist certain potential safety hazard.
Summary of the invention
Main purpose of the present invention is the air conditioner providing a kind of pressure relief device and have it, to solve fusible plug of the prior art can only control unlatching problem by temperature.
To achieve these goals, according to an aspect of the present invention, provide a kind of pressure relief device, comprise matrix, matrix has the first pressure release passage, the low melting alloy of shutoff first pressure release passage is provided with in first pressure release passage, matrix also has the second pressure release passage, closeouts is provided with in second pressure release passage, closeouts is in the block-up position of shutoff second pressure release passage in a free state, and when the pressure in the second pressure release passage reaches predetermined value, closeouts is in the vent position dodging the second pressure release passage.
Further, the construction section that matrix comprises block section and is connected with block section, the outer side wall of construction section along the radial convex of block section for the outer side wall of block section with forming station terrace between construction section and block section.
Further, the second pressure release passage is kink shape and its outlet is positioned on step surface.
Further, pressure relief device also comprises the lid be arranged on the construction section of matrix, the outer side wall of construction section and the madial wall of lid fit, pressure-releasing chamber is formed between the diapire of lid and construction section, the outer side wall of construction section and/or the madial wall of lid has gas pressure relief slot, pressure-releasing chamber is communicated with gas pressure relief slot, the first pressure release passage, and the outlet of gas pressure relief slot is arranged towards block section.
Further, the first pressure release passage is kink shape and the outlet of the first pressure release passage is positioned on step surface.
Further, second pressure release passage comprises the first passage section and second channel section that are interconnected, first passage section and second channel section shift to install or have predetermined angle between first passage section and second channel section, and closeouts is arranged on the connectivity part of first passage section and second channel section movably.
Further, closeouts comprises block head and elastic component, and the first end of elastic component is fixedly installed, and the second end of elastic component is supported with block head and coordinated.
Further, matrix also has pretension mounting hole, and the first end of elastic component is arranged in pretension mounting hole, and pressure relief device also comprises position and is adjustably arranged on preload piece in pretension mounting hole, and preload piece is supported with the first end of elastic component and coordinated.
Further, between preload piece with pretension mounting hole for being threaded.
According to a further aspect in the invention, provide a kind of air conditioner, comprise pressure relief device, pressure relief device is above-mentioned pressure relief device.
Apply technological scheme of the present invention, the first pressure release passage and the second pressure release passage are set in matrix, and low melting alloy is set in the first pressure release passage, closeouts is set in the second pressure release passage.Above-mentioned closeouts is in the block-up position of shutoff second pressure release passage in a free state, and when the pressure in the second pressure release passage reaches predetermined value, closeouts is in the vent position dodging the second pressure release passage.When in pressurized container (as gas-liquid separator etc.), the temperature of medium (as refrigeration agent) is increased to the fusing point of low melting alloy, low melting alloy fusing flowing, high temperature media is discharged from the first pressure release passage, reduces the pressure in pressurized container; When the pressure in pressurized container (as gas-liquid separator etc.) reaches predetermined value, closeouts is in the vent position dodging the second pressure release passage, and medium is discharged from the second pressure release passage, reduces the pressure in pressurized container.Said structure achieves and controls to open according to temperature and pressure simultaneously, all can reach protection pressurized container, prevent the effect of exploding, achieve the double protection functions detecting High Temperature High Pressure.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the fusible plug of prior art;
Fig. 2 shows the cross-sectional schematic of the embodiment one according to pressure relief device of the present invention;
Fig. 3 shows the elevational schematic view of the pressure relief device of Fig. 2;
Fig. 4 shows the decomposition texture schematic diagram of the pressure relief device of Fig. 2;
Fig. 5 shows the structural representation of the matrix of the pressure relief device of Fig. 2;
Fig. 6 shows the structural representation of the lid of the pressure relief device of Fig. 2;
Fig. 7 shows the cross-sectional schematic of the hot operation state of the pressure relief device of Fig. 2;
Fig. 8 shows the elevational schematic view of the hot operation state of the pressure relief device of Fig. 2;
Fig. 9 shows the cross-sectional schematic of the high-pressure work state of the pressure relief device of Fig. 2; And
Figure 10 shows the elevational schematic view of the high-pressure work state of the pressure relief device of Fig. 2.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, cock body; 2, through hole; 3, low melting alloy; 10, matrix; 11, the first pressure release passage; 12, the second pressure release passage; 121, first passage section; 122, second channel section; 13, block section; 14, construction section; 15, step surface; 16, pretension mounting hole; 20, low melting alloy; 30, closeouts; 31, block head; 32, elastic component; 40, lid; 50, pressure-releasing chamber; 60, gas pressure relief slot; 70, preload piece.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 2, the pressure relief device of embodiment one is used for the pressurized container of air conditioner.Above-mentioned pressure relief device comprises matrix 10.Matrix 10 has the low melting alloy 20 being perfused with shutoff first pressure release passage 11 in the first pressure release passage 11, first pressure release passage 11.Matrix 10 also has in the second pressure release passage 12, second pressure release passage 12 and is provided with closeouts 30.Closeouts 30 is in the block-up position of shutoff second pressure release passage 12 in a free state, and when the pressure in the second pressure release passage 12 reaches predetermined value, closeouts 30 is in the vent position dodging the second pressure release passage 12.
The pressure relief device of application the present embodiment, arranges the first pressure release passage 11 and the second pressure release passage 12, and arrange low melting alloy 20 in the first pressure release passage 11, in the second pressure release passage 12, arrange closeouts 30 in matrix 10.Above-mentioned closeouts 30 is in the block-up position of shutoff second pressure release passage 12 in a free state, and when the pressure in the second pressure release passage 12 reaches predetermined value, closeouts 30 is in the vent position dodging the second pressure release passage 12.When in pressurized container (as gas-liquid separator etc.), the temperature of medium (as refrigeration agent) is increased to the fusing point of low melting alloy 20, low melting alloy 20 melts flowing, high temperature media is discharged from the first pressure release passage 11, reduces the pressure in pressurized container; When the pressure in pressurized container (as gas-liquid separator etc.) reaches predetermined value, closeouts 30 is in the vent position dodging the second pressure release passage 12, and medium is discharged from the second pressure release passage 12, reduces the pressure in pressurized container.Said structure achieves and controls to open according to temperature and pressure simultaneously, all can reach protection pressurized container, prevent the effect of exploding, achieve the double protection functions detecting High Temperature High Pressure.
It should be noted that; above-mentioned pressure relief device is not limited to be used on the pressurized container of air conditioner, and in other embodiments, above-mentioned pressure relief device can be used in other pressure operational outfits equally; play the protective function of High Temperature High Pressure, prevent equipment because of the too high generation security incident of internal pressure.
As shown in Fig. 2, Fig. 4 and Fig. 5, in the pressure relief device of embodiment one, the construction section 14 that matrix 10 comprises block section 13 and is connected with block section 13.The outer side wall of construction section 14 along the radial convex of block section 13 for the outer side wall of block section 13 with forming station terrace 15 between construction section 14 and block section 13.The outer side wall of above-mentioned block section 13 has thread section, is threaded connection between this block section 13 and pressurized container.When installing pressure relief device, can be installed by the above-mentioned construction section 14 of tool holding.
As shown in Figures 2 and 3, in the pressure relief device of embodiment one, second pressure release passage 12 is in kink shape, and the end face that the import of the second pressure release passage 12 is positioned at block section 13 is communicated with the inside of pressurized container, and the outlet of the second pressure release passage 12 is positioned on step surface 15.When the pressure in pressurized container reaches predetermined value, closeouts 30 is in the vent position dodging the second pressure release passage 12, medium flows along the second pressure release passage 12 of kink shape, finally discharge from the outlet be positioned at step surface 15, the flow direction of medium can be changed like this, prevent from medium from directly spraying to damage operator, avoid potential safety hazard.
As shown in Figures 2 to 6, in the pressure relief device of embodiment one, pressure relief device also comprises the lid 40 be arranged on the construction section 14 of matrix 10.The outer side wall of construction section 14 and the madial wall of lid 40 fit.Pressure-releasing chamber 50 is formed between the diapire of lid 40 and construction section 14.The madial wall of lid 40 has gas pressure relief slot 60.Pressure-releasing chamber 50 is communicated with gas pressure relief slot 60, first pressure release passage 11, and the outlet of gas pressure relief slot 60 arranges towards block section 13 and is positioned on the extended surface of step surface 15, and the end face that the import of the first pressure release passage 11 is positioned at block section 13 is communicated with the inside of pressurized container.In the present embodiment, the outer side wall of construction section 14 has outside thread, the circumferential madial wall of lid 40 has internal thread, above-mentioned lid 40 is linked together by internal and external screw thread with above-mentioned construction section 14, gas pressure relief slot 60 on the madial wall of lid 40 and the outer side wall of construction section 14 form passage, and the outer side wall of lid 40 has six the installation fitting surfaces connected successively.When in pressurized container, the temperature of medium is increased to the fusing point of low melting alloy 20, low melting alloy 20 melts flowing, high temperature media flows along the first pressure release passage 11, pressure-releasing chamber 50, gas pressure relief slot 60, the outlet of final gas pressure relief slot 60 from the extended surface being positioned at step surface 15 is discharged, the flow direction of medium can be changed like this, prevent from medium from directly spraying to damage operator, avoid potential safety hazard.Six of above-mentioned lid 40 fitting surface is installed can more be convenient to install.
It should be noted that, the setting position of gas pressure relief slot 60 is not limited thereto, and in other mode of executions unshowned in the drawings, gas pressure relief slot 60 can be arranged on the outer side wall of construction section 14, or on the madial wall being simultaneously arranged on lid 40 and on the outer side wall of construction section 14.
As shown in Figure 2, in the pressure relief device of embodiment one, the second pressure release passage 12 comprises the first passage section 121 and second channel section 122 that are interconnected.Between first passage section 121 and second channel section 122, there is predetermined angle.Closeouts 30 is arranged on the connectivity part of first passage section 121 and second channel section 122 movably.In the present embodiment, second channel section 122 comprises radial passage section and axial passage section, the outlet going out interruption-forming second pressure release passage 12 of axial passage section, radial passage section is vertical with first passage section 121 to be arranged, and axial passage section and first passage section 121 be arranged in parallel.Man-hour is being added to the second pressure release passage 12, first from the outer side wall of construction section 14 along the radial aperture of matrix 10, again from step surface 15 along the axial aperture of matrix 10, and the hole of axially opening is communicated with the hole that radial direction is opened, the one end in the close outside in the hole finally using plug screw radial direction to be opened is blocked, so just can form radial passage section and the axial passage section of second channel section 122, more be convenient to manufacturing.Certainly, the set-up mode of the second pressure release passage 12 and closeouts 30 is not limited thereto, and in other mode of executions unshowned in the drawings, first passage section 121 and second channel section 122 can shift to install, and the second pressure release passage 12 also can be a passage.When the second pressure release passage 12 is a passage, closeouts 30 can be set directly at one end of the second pressure release passage 12, when the pressure in pressurized container reaches predetermined value, closeouts 30 can directly eject the second pressure release passage 12 by pressure, thus the second pressure release passage 12 is opened, so that medium is discharged.
As shown in Figure 2, in the pressure relief device of embodiment one, closeouts 30 comprises block head 31 and elastic component 32.The first end of elastic component 32 is fixedly installed, and the second end of elastic component 32 is supported with block head 31 and coordinated.Above-mentioned elastic component 32 can apply elastic force to block head 31, and the pressure in this elastic force and pressurized container makes closeouts 30 switch between block-up position and vent position jointly, uses more flexible.
As shown in Figure 2 and Figure 4, in the pressure relief device of embodiment one, matrix 10 also has pretension mounting hole 16.The first end of elastic component 32 is arranged in pretension mounting hole 16.Pressure relief device also comprises position and is adjustably arranged on preload piece 70 in pretension mounting hole 16.Preload piece 70 is supported with the first end of elastic component 32 and is coordinated.In the present embodiment, preload piece 70 is pre-loading screw, and for being threaded between this pre-loading screw with pretension mounting hole 16, elastic component 32 is pressure spring.Said structure by the extending amount of precession distance controlling pressure spring of adjustment pre-loading screw, thus makes it match with the predetermined value of pressure, and then realization controllably protects pressurized container.
As shown in Figure 3 and Figure 6, in the pressure relief device of embodiment one, first pressure release passage 11 is one, gas pressure relief slot 60 is along the circumference of lid 40 equally distributed six, second pressure release passage 12 is along the circumference of matrix 10 equally distributed three, and wherein, the first passage section 121 of each second pressure release passage 12 is arranged vertically, the radial passage section of the second channel section 122 of each second pressure release passage 12 is disposed radially, and the axial passage section of the second channel section 122 of each second pressure release passage 12 is arranged vertically.The import of first passage section 121 of each second pressure release passage 12, the outlet of the axial passage section of second channel section 122 are all simultaneously corresponding with the outlet of in six gas pressure relief slots 60.Said structure can realize the shunting to medium, changes media flow direction, avoids medium directly to spray, and reduces ejection distance, ensures the Security that medium is arranged outward.
The pressure relief device of embodiment one is divided into three working staties:
1, normal working:
As shown in Figure 2, when air-conditioner set normally works, the operating pressure in pressurized container and refrigerant temperature all do not exceed standard, now, there is not physical state change in low melting alloy 20, closeouts 30 is in block-up position, and cryogen containment is in pipe-line system, and refrigeration agent normally runs in pipe-line system.
2, hot operation state:
As shown in Figure 7 and Figure 8; when air-conditioner set operation exception (or ambient temperature is high); refrigerant temperature in pressurized container is too high; there is risk of explosion in unit pipe-line system or compressor assembly; now, low melting alloy 20 melts flowing, and high temperature refrigerant is discharged from the first pressure release passage 11; reduce the pressure in pressurized container, play safety protection effect (flow direction of refrigeration agent is as shown in the direction of arrow in Fig. 7 and Fig. 8).
3, high-pressure work state:
As shown in Figure 9 and Figure 10; when air-conditioner set runs when ambient temperature is lower; refrigerant temperature in pressurized container does not exceed standard; but the pressure severe overweight in pressurized container; now; if pressure reaches predetermined value; closeouts 30 is in vent position (namely block head 31 is by jack-up); refrigeration agent is discharged from the second pressure release passage 12; reduce the pressure in pressurized container, play safety protection effect (flow direction of refrigeration agent is as shown in the direction of arrow in Fig. 9 and Figure 10).
The pressure relief device of embodiment two and the main distinction of embodiment one are, the first pressure release passage is kink shape and the outlet of the first pressure release passage is positioned at (not shown) on step surface.Said structure directly processes the first pressure release passage of kink shape in matrix, and makes the outlet of the first pressure release passage be positioned on step surface, so also can change the outflow direction of medium, prevent high temperature media from directly spraying.But the pressure relief device with above-mentioned first pressure release passage is not easy to processing compared to the pressure relief device of embodiment one, uses very flexible.
Present invention also provides a kind of air conditioner, the embodiment according to the air conditioner of the application comprises pressure relief device.Pressure relief device is above-mentioned pressure relief device.Above-mentioned air conditioner has the pressure relief device of the double protection functions detecting High Temperature High Pressure owing to arranging, service behaviour is more stable, and reliability is higher.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a pressure relief device, comprise matrix (10), described matrix (10) has the first pressure release passage (11), the low melting alloy (20) of the first pressure release passage (11) described in shutoff is provided with in described first pressure release passage (11), it is characterized in that, described matrix (10) also has the second pressure release passage (12), closeouts (30) is provided with in described second pressure release passage (12), described closeouts (30) is in the block-up position of the second pressure release passage (12) described in shutoff in a free state, when pressure in described second pressure release passage (12) reaches predetermined value, described closeouts (30) is in the vent position dodging described second pressure release passage (12).
2. pressure relief device according to claim 1, it is characterized in that, the construction section (14) that described matrix (10) comprises block section (13) and is connected with described block section (13), the outer side wall of described construction section (14) along the radial convex of described block section (13) for the outer side wall of described block section (13) with forming station terrace (15) between described construction section (14) and described block section (13).
3. pressure relief device according to claim 2, is characterized in that, described second pressure release passage (12) in kink shape and its outlet be positioned on described step surface (15).
4. pressure relief device according to claim 2, it is characterized in that, described pressure relief device also comprises the lid (40) be arranged on the described construction section (14) of described matrix (10), the outer side wall of described construction section (14) and the madial wall of described lid (40) fit, pressure-releasing chamber (50) is formed between the diapire of described lid (40) and described construction section (14), the outer side wall of described construction section (14) and/or the madial wall of described lid (40) has gas pressure relief slot (60), described pressure-releasing chamber (50) and described gas pressure relief slot (60), described first pressure release passage (11) is communicated with, the outlet of described gas pressure relief slot (60) is arranged towards described block section (13).
5. pressure relief device according to claim 2, is characterized in that, described first pressure release passage (11) in kink shape and the outlet of described first pressure release passage (11) be positioned on described step surface (15).
6. pressure relief device according to claim 1, it is characterized in that, described second pressure release passage (12) comprises the first passage section (121) and second channel section (122) that are interconnected, described first passage section (121) and described second channel section (122) shift to install or have predetermined angle between described first passage section (121) and described second channel section (122), and described closeouts (30) is arranged on the connectivity part of described first passage section (121) and described second channel section (122) movably.
7. pressure relief device according to claim 6, it is characterized in that, described closeouts (30) comprises block head (31) and elastic component (32), the first end of described elastic component (32) is fixedly installed, and the second end of described elastic component (32) is supported with described block head (31) and coordinated.
8. pressure relief device according to claim 7, it is characterized in that, described matrix (10) also has pretension mounting hole (16), the first end of described elastic component (32) is arranged in described pretension mounting hole (16), described pressure relief device also comprises position and is adjustably arranged on preload piece (70) in described pretension mounting hole (16), and described preload piece (70) is supported with the first end of described elastic component (32) and coordinated.
9. pressure relief device according to claim 8, is characterized in that, for being threaded between described preload piece (70) with described pretension mounting hole (16).
10. an air conditioner, comprises pressure relief device, it is characterized in that, the pressure relief device of described pressure relief device according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009095.4A CN105443986A (en) | 2015-12-25 | 2015-12-25 | Pressure relief device and air conditioner provided with pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009095.4A CN105443986A (en) | 2015-12-25 | 2015-12-25 | Pressure relief device and air conditioner provided with pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443986A true CN105443986A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511009095.4A Pending CN105443986A (en) | 2015-12-25 | 2015-12-25 | Pressure relief device and air conditioner provided with pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443986A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110017939A (en) * | 2018-01-08 | 2019-07-16 | 中国石油天然气股份有限公司 | Pressure gauge is shorted |
| CN113280251A (en) * | 2021-04-25 | 2021-08-20 | 中通客车股份有限公司 | Shunting bleeder hydrogen cylinder structure for vehicle |
| CN114754916A (en) * | 2022-05-11 | 2022-07-15 | 北京七星华创流量计有限公司 | Pressure sensor and method for manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114754916B (en) * | 2022-05-11 | 2024-01-09 | 北京七星华创流量计有限公司 | Pressure sensor and method for manufacturing the same |
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Application publication date: 20160330 |
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