CN215450900U

CN215450900U - Automatic pressure relief valve and data disaster recovery storage device comprising same

Info

Publication number: CN215450900U
Application number: CN202122212870.3U
Authority: CN
Inventors: 滕云海; 李伟; 陈劲; 孙春晖; 王欣佳
Original assignee: Shanghai Sanly Digital Technology Co ltd
Current assignee: Shanghai Sanly Digital Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-07
Anticipated expiration: 2031-09-13

Abstract

The utility model provides an automatic pressure release valve and a data disaster recovery storage device comprising the same, which are used for the data disaster recovery storage device. When the temperature around the automatic pressure relief valve rises, the low-melting-point top block is melted, and the gas is discharged from the pressure relief opening. The volume of the automatic pressure relief valve with the structure is small, and the capacity of a container using the automatic pressure relief valve is increased by phase change.

Description

Automatic pressure relief valve and data disaster recovery storage device comprising same

Technical Field

The utility model relates to the field of pressure relief valves, in particular to an automatic pressure relief valve and a data disaster recovery storage device comprising the same.

Background

At present, some devices in a vehicle, such as a vehicle data recorder, generally use a built-in hard disk or SD card to store vehicle data records. When an accident occurs, such as a fire accident, a crash accident, or a water drop, the vehicle cannot be read due to the damage of a data storage (such as a built-in hard disk or an SD card) caused by poor protection, and the cause of the accident cannot be determined. The existing data disaster backup storage device is often provided with an automatic pressure relief valve, but the automatic pressure relief valve occupies more water storage capacity due to complex structure and large volume. In addition, the structure for accommodating the data storage is complex and large in size, the volume of the cavity in the inner container can be reduced, the loaded cooling liquid is reduced, and the fire resistance of the data disaster recovery storage device is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defect of poor heat resistance and durability of a data disaster recovery storage device in the prior art, and provides an automatic pressure release valve and the data disaster recovery storage device comprising the same.

The utility model solves the technical problems through the following technical scheme:

the utility model provides an automatic relief valve for data disaster is equipped with storage device, automatic relief valve includes valve body, sealing member, low melting point kicking block and retaining member, the valve body is provided with the holding tank, the sealing member sets up in the holding tank, the pressure release mouth has been seted up to the holding tank, the sealing member sets up the pressure release mouth department of holding tank, the retaining member for the valve body is fixed to be set up, and passes through low melting point kicking block butt in the sealing member provides the orientation the pressure of the pressure release mouth of holding tank.

In this scheme, adopt above-mentioned structural style, the sealing member covers the pressure release mouth department at the holding tank under the effect of retaining member for the pressure release mouth keeps the closed condition, and the liquid among the data disaster backup storage device can not flow or volatilize from the pressure release hole. When the temperature around the automatic pressure release valve rises, the low-melting-point top block is melted, the pressure release hole of the sealing element is not closed any more, and liquid can be discharged in a high-temperature high-pressure steam state, so that the aim of accurately releasing pressure under the condition of constant temperature and constant pressure is fulfilled. The volume of the automatic pressure release valve with the structure is small, and the capacity of cooling liquid of the data disaster backup storage device is increased through phase change. In some embodiments, the low melting point top piece is a tin-bismuth-lead alloy or an indium-tin-bismuth alloy. When the liquid is water, the melting point of the low-melting-point alloy may be 110 to 130 degrees celsius, and preferably 120 degrees celsius.

Preferably, the sealing element is provided with a pressure relief opening, the pressure relief opening of the sealing element is communicated with the pressure relief opening of the accommodating groove, and the low-melting-point top block abuts against the pressure relief opening of the sealing element.

Adopt this structural style, the steam of high temperature high pressure state need not to push away the sealing member, can pass the pressure release mouth of sealing member by the pressure release mouth of holding tank and discharge from inside to outside, and steam circulation is more smooth and easy.

Preferably, the sealing element is an annular rubber ring.

The rubber ring has better tightness, the annular structure of the rubber ring naturally forms a pressure relief opening part in the middle, the rubber ring has a simple structure and low manufacturing cost.

Preferably, the pressure relief opening of the accommodating groove is circular and has a diameter less than or equal to 0.5 mm.

The diameter of the pressure relief opening is controlled, so that excessive pressure generated by heating and vaporizing liquid in the container can be released; and after the low-melting-point top block is melted, the pressure is released too fast due to the overlarge pressure relief opening, so that the pressure in the container is suddenly reduced, the boiling point of the liquid is reduced, and the vaporization is accelerated. By adopting the structure mode, the container can be kept in a stable high-temperature and high-pressure state.

Preferably, the lateral wall of holding tank is provided with the screw thread, the retaining member is provided with the through-hole to threaded connection is in the holding tank.

The holding tank is in threaded fit with the locking piece, and the fixing mode is simple and easy to operate. In addition, because retaining member can screw in the holding tank, further reduced automatic relief valve's volume, released container capacity. The retaining member sets up the through-hole and can guarantee that the holding tank is linked together with the external world, after high-pressure gas was released to the holding tank, can arrange the outside through the through-hole of retaining member.

Preferably, one end of the locking piece, which is far away from the accommodating groove, is provided with a straight groove or a cross groove.

This scheme makes the retaining member twist through the screwdriver and changes, need not to set up other parts on the retaining member in order to make things convenient for the staff to operate, has further reduced the volume of relief valve.

The utility model provides a data disaster recovery storage device, includes metal dustcoat, thermal-insulated material layer, inner bag, data memory shell, the memory chip that has well cavity, the memory chip sets up inside the data memory shell, the metal dustcoat cover is established the inner bag is outside, the metal dustcoat with be provided with between the inner bag the thermal-insulated material layer, the inner bag is provided with the opening, the opening is located one side of well cavity is provided with as before automatic relief valve, well cavity is equipped with the coolant liquid, preferred, the data memory shell with the casing body coupling of inner bag is placed in the cavity intracavity, the coolant liquid around in the data memory shell. When the temperature of the cooling liquid is gradually increased due to the introduction of external heat energy, the automatic pressure release valve can control the air pressure in the inner container to exceed the standard atmospheric pressure, so that the boiling point of the cooling liquid is increased, the cooling liquid can absorb more heat, the air pressure of the inner container is continuously increased along with the increase of the temperature and finally reaches the threshold value of the automatic pressure release valve, and the cooling liquid can be discharged from the opening in a high-temperature and high-pressure steam state and simultaneously reduces the temperature and the air pressure of the inner container; when the air pressure is reduced to a certain value, the automatic pressure release valve is closed again, and then the inner container continues absorbing heat and increasing pressure until the automatic pressure release valve is opened again, and high-temperature and high-pressure steam is discharged outwards. Repeating the above steps for several times until the cooling liquid is evaporated and leaked. Therefore, the automatic pressure relief valve can enable the cooling liquid to be discharged after the cooling liquid fully absorbs heat, the cooling liquid is fully utilized, and the heat resistance and durability of the disaster recovery storage device are improved.

In this scheme, adopt above-mentioned structural style, data memory shell body coupling has replaced the holding tank that originally sets up on the inner bag casing. The integral connection can be realized by welding, metal plates or flange plate installation, and the structure effectively releases the volume of the hollow cavity of the inner container, so that the inner container can contain more cooling liquid, and the fire resistance of the inner container is improved; on the other hand, only one layer of data memory shell is arranged between the memory chip and the cooling liquid, and compared with the original structure that a layer of groove is arranged between the memory chip and the cooling liquid, the heat conductivity of the data memory shell is better, the cooling liquid can absorb redundant heat on the memory chip more quickly, and therefore the fire resistance of the data disaster recovery memory device is improved.

Preferably, the automatic pressure relief valve is filled with grease.

In the scheme, the lubricating grease can play a role in enhancing sealing in the automatic pressure release valve, so that volatilization of the cooling liquid in a conventional state is reduced; but also can prevent the metal components from rusting; and impurities can be prevented from entering the automatic pressure release valve and being stuck on the elastic mechanism, so that the influence on the accuracy of temperature control during eruption due to the increase of the damping of the elastic mechanism is avoided. The material of the grease is preferably a high temperature resistant grease, such as a perfluoropolyether grease.

Preferably, a storage chip socket is arranged on one side of the data storage shell connected with the inner container.

In this scheme, through set up the memory chip socket in one side that data memory shell and inner bag link to each other, can the person of facilitating the use take out memory chip read data, to damage or need change with the memory chip of new iteration.

Preferably, the memory chip socket is provided with a heat insulating material to isolate the inside of the data memory housing from the outside.

In the scheme, the heat insulation material at the socket of the storage chip can perform heat insulation protection on the position of the shell of the data storage device, which is not wrapped by the cooling liquid, so that the comprehensiveness of the data disaster recovery storage device in dealing with fire is effectively improved.

Preferably, one side of the opening, which is far away from the hollow cavity, is coated with a protective material to prevent the high-temperature and high-pressure gas from breaking through the thermal insulation material layer.

In this scheme, the cladding of protective material is at the opening part, can play certain sealed effect to automatic relief valve on the one hand, prevent that the coolant liquid from evaporating the effusion in advance under normal atmospheric temperature state, and simultaneously, the thermal insulation material layer can effectively be protected to the protective material, when high temperature high pressure steam from automatic relief valve blowout, can not directly strike on the thermal insulation material layer, but on assaulting the protective material, guarantee thermal insulation material's integrality, thereby make the unable direct thermal-insulated protective layer that breaks through of subsequent outside heat, thereby promote data disaster and prepare storage device's fire behavior.

Preferably, the protective material is a high temperature adhesive tape.

In the scheme, the high-temperature adhesive tape is used as a protective material, is thin and does not occupy the space of the heat insulation material layer, so that the influence on the fire resistance of the data disaster recovery storage device is small; in addition, the high-temperature adhesive tape has good coating effect and is simple and convenient to install and operate.

Preferably, one side of the metal outer cover is provided with a pressure relief portion, and the opening is far away from the pressure relief portion.

In the scheme, after being sprayed out from the opening, high-temperature and high-pressure steam flows along the gap between the heat insulation material layer and the inner container, the opening is arranged on one side of the inner container far away from the pressure relief part, so that the steam can flow around the inner container for a long time before being released to the outside by the pressure relief part of the metal outer cover, the heat on the inner container is taken away by the flowing steam as much as possible, the cooling liquid is utilized to the maximum extent, and the safety of the storage chip in fire is further protected.

Preferably, the pressure relief portion is arranged on the lower surface of the metal outer cover, and the opening is arranged on the upper surface of the inner container.

In this scheme, the setting of misplacing from top to bottom of bleeder part and opening makes spun steam from top to bottom more smoothly circulate to the bleeder part along the inner bag casing under atmospheric pressure and action of gravity. In addition, the opening is arranged above, liquid formed by steam condensation is not easy to gather at the opening, and the steam can be smoothly discharged; if set up in the below, the opening is blockked up by liquid easily, can take out liquid when the blowout steam, leads to the steam circulation unsmooth. Correspondingly, the pressure relief portion is arranged below, and the liquid formed by steam condensation is easy to remove the data disaster recovery storage device under the action of gravity, so that the fire resistance of the data disaster recovery storage device is improved.

Preferably, the heat insulation material layer comprises an accommodating part and a bottom plate, the inner container is covered by the accommodating part and the bottom plate, and the pressure relief part is formed by a gap at the abutting part of the bottom plate and the metal outer cover.

In this scheme, no matter by opening spun steam from top to bottom circulation along the inner bag, still release to the outside by the relief pressure portion, the passageway of circulation has at least one side to be the thermal insulation material layer, and its simple structure installation is maintained comparatively conveniently.

Preferably, an installation groove is formed in the inner side of the heat insulation material layer, the installation groove is communicated with the pressure relief portion, and a lead connected to the storage chip is arranged in the installation groove.

In this scheme, the memory chip is electrically connected with external electronic equipment (such as a power supply, a processor and the like) through a wire, and the wire is arranged in the mounting groove. After the high-temperature and high-pressure steam is discharged from the opening, the data disaster recovery storage device can be discharged from a gap between the inner container and the heat insulation material layer and finally through the mounting groove.

Preferably, the data storage shell is connected to the lower surface of the shell of the inner container.

In the scheme, the data storage device shell is arranged at the lower part of the inner container, and when the liquid level of the cooling liquid is reduced due to evaporation, the cooling liquid can still be submerged in the cooling liquid for a long time, so that the fire resistance of the data disaster recovery storage device is further improved. In addition, the storage chip socket and the pressure relief part are both arranged on the lower side of the data disaster backup storage device, the length of a conducting wire arranged in the data disaster backup storage device is short, and accordingly the probability of faults and problems of the conducting wire in the data disaster backup storage device is low.

The positive progress effects of the utility model are as follows: the data storage shell is integrally connected to the inner container shell, and an accommodating groove originally arranged on the inner container is replaced. On one hand, the volume of the hollow cavity in the inner container is effectively released, so that the inner container can contain more cooling liquid, and the fire resistance of the inner container is improved; on the other hand, only one layer of data memory shell is arranged between the memory chip and the cooling liquid, so that the heat conductivity is better, and the cooling liquid can absorb the redundant heat on the memory chip more quickly.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a partially enlarged schematic view of embodiment 1 of the present invention.

Fig. 3 is another enlarged partial schematic view of embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of an automatic pressure relief valve according to embodiment 2 of the present invention.

Metal housing 1

Layer of insulating material 2

Accommodating part 21

Base plate 22

Inner container 3

Hollow cavity 31

Opening 32

Automatic pressure relief valve 4

Valve body 41

Accommodating groove 411

Seal 42

Low melting point top block 43

Retaining member 44

Movable part 45

Elastic member 46

Data storage housing 5

Memory chip 6

Memory chip socket 51

Insulating material 7

High temperature adhesive tape 8

Relief portion 9

Conductor 10

Detailed Description

The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.

Example 1

As shown in fig. 1, fig. 2, and fig. 3, the present embodiment provides a data disaster recovery storage device, which includes a metal outer cover 1, a heat insulating material layer 2, an inner container 3 having a hollow cavity 31, a data storage device housing 5, and a storage chip 6, where the storage chip 6 is disposed inside the data storage device housing 5, the metal outer cover 1 is sleeved outside the inner container 3, the heat insulating material layer 2 is disposed between the metal outer cover 1 and the inner container 3, the inner container 3 is provided with an opening 32, one side of the opening 32 located in the hollow cavity 31 is provided with an automatic pressure relief valve 4, and the hollow cavity 31 is filled with a cooling liquid. The hollow cavity 31 of the inner container 3 is filled with the cooling liquid through the opening 32. The outer side of the inner container 3 is coated with the heat insulation material layer 2 which can prevent the conduction of external heat to the inner container 3. In a preferred embodiment, the coolant is water. When the temperature of the cooling liquid gradually rises due to external heat energy introduction, the automatic pressure release valve 4 can control the air pressure inside the inner container 3 to exceed the standard atmospheric pressure, so that the boiling point of the cooling liquid rises, the cooling liquid can absorb more heat, the air pressure of the inner container 3 continuously rises along with the rise of the temperature, and finally reaches the exhaust threshold of the automatic pressure release valve 4, the cooling liquid can be discharged from the opening 32 in a high-temperature and high-pressure steam state, and meanwhile, the temperature and the air pressure of the inner container 3 are reduced; when the air pressure is reduced to a certain value, the automatic pressure release valve 4 is closed again, and then the inner container 3 continues to absorb and increase the pressure until the automatic pressure release valve 4 is opened again, and high-temperature and high-pressure steam is discharged outwards. Repeating the above steps for several times until the cooling liquid is evaporated and leaked. Therefore, the automatic pressure release valve 4 of the scheme can enable the cooling liquid to be discharged after fully absorbing heat, the cooling liquid is fully utilized, and the improvement of the heat resistance and durability of the disaster recovery storage device is facilitated.

The automatic pressure relief valve 4 includes a valve body 41, a movable member 45, and an elastic member 46, where the valve body 41 has a pressure relief opening, the movable member 45 is configured to be able to move between a first position and a second position, when the movable member 45 is located at the first position, the movable member 45 closes the pressure relief opening, when the movable member 45 is located at the second position, the pressure relief opening is opened, and the elastic member 46 is configured to provide elastic force toward the first position to the movable member 45. The pressure relief port can be communicated with the coolant, and under the action of the elastic piece 46, the movable piece 45 can be kept at the first position in a conventional state, so that the coolant cannot flow out of the pressure relief port in a closed state of the pressure relief port; when the temperature of the cooling liquid gradually rises, the cooling liquid can be vaporized continuously when boiling, and the pressure on one side of the pressure relief opening exceeds the standard atmospheric pressure due to the fact that the pressure relief opening is closed, so that the boiling point of the cooling liquid rises, and the cooling liquid can absorb more heat. If the temperature does not rise any more, the cooling liquid stops boiling and vaporizing when the air pressure and the temperature reach the balance, and the air pressure on one side of the pressure relief opening stops rising. If the air pressure at one side of the pressure relief opening continuously rises along with the rise of the temperature, the elastic force of the elastic element 46 is overcome finally, the movable element 45 is pushed to the second position, a gap is formed between the movable element 45 and the valve body 41, the cooling liquid can be discharged from the gap in a high-temperature and high-pressure steam state, the temperature and the air pressure in the data disaster recovery storage device are reduced simultaneously, and the boiling point of the cooling liquid is reduced; when the air pressure is reduced to a certain value, the new balance between the air pressure and the temperature is realized, the elastic element 46 pushes the movable element 45 back to the first position, the pressure relief opening is closed again, and then the heat absorption and the pressure increase of one side of the pressure relief opening are continued until the movable element 45 is pushed open again, and the high-temperature and high-pressure steam is discharged outwards. Repeating the above steps for several times until the cooling liquid is evaporated and leaked. Therefore, the automatic pressure release valve 4 of the scheme can enable the cooling liquid to be discharged after fully absorbing heat, the cooling liquid is fully utilized, and the improvement of the heat resistance and durability of the disaster recovery storage device is facilitated. By controlling the elastic force of the elastic member 46, the opening pressure of the relief port can be accurately controlled. For example, in the case where the cooling liquid is water, the movable member 45 may be pushed open when the water in the inner tub 3 is heated to 120 ℃ by controlling the properties of the elastic member 46.

As a preferred embodiment, the data storage housing 5 and the shell of the inner container 3 are integrally connected and placed in the hollow cavity 31, and the above structure may be implemented by welding or flange installation, which is not limited in the present invention. Through this structure, can replace the holding tank that originally sets up on inner bag 3. On one hand, the volume of the cavity 31 in the inner container 3 is effectively released, so that the inner container 3 can contain more cooling liquid, and the fire resistance of the inner container 3 is improved; on the other hand, only one layer of data storage shell 5 is arranged between the storage chip 6 and the cooling liquid, so that the heat conductivity is better, and the cooling liquid can absorb the redundant heat on the storage chip 6 more quickly.

As a preferred embodiment, the automatic pressure relief valve 4 is filled with grease. In the present embodiment, the grease can play a role of enhancing the sealing in the automatic relief valve 4, thereby reducing the volatilization of the coolant in the normal state; but also can prevent the metal components from rusting; and impurities can be prevented from entering the automatic pressure release valve 4 and being stuck on the elastic mechanism, so that the influence on the accuracy of temperature control during eruption due to the increase of the damping of the elastic mechanism is avoided. The material of the grease is preferably a high temperature resistant grease, such as a perfluoropolyether grease.

In a preferred embodiment, a memory chip socket 51 is provided on the side of the data storage housing 5 connected to the inner container 3. By arranging the memory chip socket 51 at the side where the data memory shell 5 is connected with the inner container 3, a user can conveniently take out the memory chip 6 to read data and replace the damaged or newly iterated memory chip 6.

In a preferred embodiment, a thermal insulating material 7 is disposed at the memory chip socket 51 to isolate the inside of the data memory case 5 from the outside. The heat insulation material 7 at the socket 51 of the storage chip can perform heat insulation protection on the position of the data storage shell 5 which is not wrapped by the cooling liquid, and the comprehensiveness of the data disaster recovery storage device in dealing with fire is effectively improved.

As a preferred embodiment, the side of the opening 32 away from the hollow cavity 31 is covered with a high temperature adhesive tape 8 to prevent the high temperature and high pressure gas from breaking through the thermal insulation material layer 2. In this embodiment, the cladding of high temperature sticky tape 8 can play certain sealed effect to automatic relief valve 4 in opening 32 department on the one hand, prevents that coolant liquid from evaporating the effusion in advance under the normal atmospheric temperature state, and simultaneously, high temperature sticky tape 8 can effectively protect thermal insulation material layer 2, when high temperature high pressure steam from automatic relief valve 4 blowout, can not directly strike on thermal insulation material layer 2, but on striking high temperature sticky tape 8. The thickness of the high-temperature adhesive tape 8 is thin, and the space of the heat insulation material layer 2 is not occupied, so that the influence on the fire resistance of the data disaster recovery storage device is small; in addition, the high-temperature adhesive tape 8 has good coating effect and is simple and convenient to install and operate. Of course, in other embodiments, the high temperature resistant adhesive tape 8 can be replaced by other protective materials to achieve the purpose that the high temperature and high pressure steam cannot directly impact on the heat insulation material layer 2.

In a preferred embodiment, the metal cover 1 is provided with a relief portion 9 on the lower surface thereof, and an opening 32 is provided on the upper surface of the inner container 3. In the present embodiment, after the high-temperature and high-pressure steam is ejected from the opening 32, the steam flows along the gap between the thermal insulation material layer 2 and the inner container 3, and the opening 32 is disposed on the upper side of the inner container 3 away from the pressure relief portion 9, so that the steam can flow around the inner container 3 for a long time before being released to the outside by the pressure relief portion 9 of the metal outer cover 1, and the flowing steam takes away as much heat as possible from the inner container 3. The pressure relief portion 9 and the opening 32 are arranged in a vertically staggered manner, so that the sprayed steam can flow to the pressure relief portion 9 more smoothly from top to bottom along the shell of the inner container 3 under the action of gravity.

In a preferred embodiment, the heat insulating material layer 2 includes an accommodating portion 21 and a bottom plate 22, the inner container 3 is covered with the accommodating portion 21 and the bottom plate 22, and the relief portion 9 is formed by a gap at a position where the bottom plate 22 abuts against the metal cover 1. In this embodiment, no matter the steam sprayed from the opening 32 circulates from top to bottom along the inner container 3 or is released to the outside by the pressure relief portion 9, at least one side of the circulating channel is the heat insulation material layer 2, and the steam-spraying device is simple in structure and convenient to install and maintain.

In a preferred embodiment, the data storage housing 5 is disposed on the lower surface of the casing of the inner container 3, and the leads 10 connecting the memory chip 6 and the external electronic device are disposed in the gap between the inner container 3, the thermal insulation material layer 2 and the metal cover 1. In this embodiment, after the liquid level of the cooling liquid drops due to evaporation, the data storage enclosure 5 is located at the lower portion of the inner container 3, so that the cooling liquid can be submerged in the cooling liquid for a long time, and the fire resistance of the data disaster recovery storage device is further improved. In addition, the memory chip socket 51 and the pressure relief part 9 are both arranged at the lower side of the data disaster recovery storage device, and the length of the conducting wire 10 arranged in the data disaster recovery storage device is short, so that the probability of the conducting wire 10 in the data disaster recovery storage device having a fault or a problem is also small. Of course, in other embodiments, the inner side of the thermal insulation material layer 2 may be further provided with a mounting groove (not shown), the memory chip socket 51 is communicated with the pressure relief portion 9 through the mounting groove, and the wire 10 connected to the memory chip 6 is disposed in the mounting groove, so as to achieve the effect of stable arrangement of the wire 10.

Example 2

As shown in fig. 4, an embodiment 2 of the present invention is basically the same as embodiment 1 except for the structure of an automatic relief valve 4. In the present embodiment, the automatic relief valve 4 includes a valve body 41, a sealing member 42, a low melting point top piece 43, and a locking member 44, and the valve body 41 is provided with a receiving groove 411. Sealing member 42 sets up in holding tank 411, and the pressure release mouth has all been seted up to holding tank 411 and sealing member, and low melting point kicking block 43 sets up in the pressure release mouth department of sealing member 42, and retaining member 44 supports presses on low melting point kicking block 43, makes low melting point kicking block 43 sticiss in the pressure release mouth department of sealing member 42. Wherein, sealing member 42 is the annular rubber circle, and the lateral wall of holding tank 411 is provided with the screw thread, and retaining member 44 is provided with the through-hole to threaded connection is in holding tank 411.

In this scheme, adopt above-mentioned structural style, low melting point kicking block 43 covers the pressure release mouth department at sealing member 42 under the effect of retaining member 44 for the pressure release mouth keeps closed state, and liquid can not follow the outflow of pressure release hole or volatilize. When the temperature around the automatic pressure release valve rises, the low-melting-point top block 43 is melted, the pressure release hole of the sealing element 42 is not closed any more, and liquid can be discharged in a high-temperature and high-pressure steam state, so that the purpose of accurate pressure release under the condition of constant temperature and constant pressure is achieved. The rubber ring has better leakproofness, and its loop configuration has formed the pressure release mouth position in the centre naturally, and its simple structure, low in manufacturing cost, the steam of high temperature high pressure state passes the rubber ring by the pressure release mouth of holding tank and discharges from inside to outside, and the steam circulation is more smooth and easy. The receiving slot 411 is screw-engaged with the locking member 44, and the fixing manner is simple and easy to operate. In addition, since the locking member 44 can be screwed into the receiving groove 411, the volume of the automatic pressure relief valve is further reduced, and the capacity of the container is released. The locking member 44 is provided with a through hole to ensure that the receiving groove 411 is communicated with the outside, and after the high-pressure gas is released to the receiving groove 411, the high-pressure gas can be discharged to the outside through the through hole of the locking member 44. The volume of the automatic pressure relief valve body 41 with the structure is small, and the capacity of a container using the automatic pressure relief valve is increased in a phase-changing mode.

In a preferred embodiment, the pressure relief opening of the receiving slot 411 is a circular hole with a diameter of 0.3mm, and in some other embodiments, it may be 0.4mm or 0.5 mm.

The diameter of the pressure relief opening is controlled, so that excessive pressure generated by heating and vaporizing liquid in the container can be released; after the low-melting-point top block 43 is melted, the pressure is released too fast due to the overlarge pressure relief opening, so that the pressure in the container is suddenly reduced, the boiling point of the liquid is reduced, and the vaporization is accelerated. By adopting the structure mode, the container can be kept in a stable high-temperature and high-pressure state.

In a preferred embodiment, the end of the locking member 44 away from the receiving slot 411 is provided with a straight slot.

This scheme makes retaining member 44 twist through the screwdriver and changes, need not to set up other parts on retaining member 44 and operate in order to make things convenient for the staff, has further reduced the volume of relief valve.

Claims

1. The utility model provides an automatic relief valve for data disaster is equipped with storage device, a serial communication port, automatic relief valve includes valve body, sealing member, low melting point kicking block and retaining member, the valve body is provided with the holding tank, the sealing member sets up in the holding tank, the pressure release mouth has been seted up to the holding tank, the sealing member sets up the pressure release mouth department of holding tank, the retaining member for the valve body is fixed to be set up, and passes through low melting point kicking block butt in the sealing member provides the orientation the pressure of the pressure release mouth of holding tank.

2. The automatic pressure relief valve according to claim 1, wherein the sealing element is provided with a pressure relief opening, the pressure relief opening of the sealing element is communicated with the pressure relief opening of the receiving groove, and the low melting point top block abuts against the pressure relief opening of the sealing element.

3. The automatic pressure relief valve of claim 2 wherein the seal is an annular rubber ring.

4. The automatic pressure relief valve of claim 1 wherein the pressure relief port of the receiving groove is circular and has a diameter of 0.5mm or less.

5. The automatic pressure relief valve of claim 1 wherein the side wall of the receiving groove is threaded and the locking member is provided with a through hole and is threaded into the receiving groove.

6. The automatic pressure relief valve of claim 5 wherein the end of the locking member remote from the receiving groove is provided with a straight groove or a cross groove.

7. A data disaster recovery storage device is characterized by comprising a metal outer cover, a heat insulation material layer, an inner container with a hollow cavity, a data storage shell and a storage chip, wherein the storage chip is arranged inside the data storage shell, the metal outer cover is arranged outside the inner container, the heat insulation material layer is arranged between the metal outer cover and the inner container, the inner container is provided with an opening, one side of the opening, which is positioned in the hollow cavity, is provided with an automatic pressure release valve according to any one of claims 1 to 6, the hollow cavity is filled with cooling liquid, the data storage shell and the shell of the inner container are integrally connected and arranged in the hollow cavity, and the cooling liquid surrounds the data storage shell.

8. The data disaster recovery storage device as claimed in claim 7, wherein a storage chip socket is provided on a side of the data storage enclosure connected to the inner container.

9. The data disaster recovery storage device as in claim 8 wherein said memory chip socket is provided with an insulating material to isolate the interior of said data storage enclosure from the exterior.

10. The data disaster recovery storage device as in claim 7 wherein a side of said opening remote from said hollow cavity is coated with a protective material to prevent high temperature and high pressure gas from bursting through said layer of thermally insulating material.

11. The data disaster recovery storage device as in claim 10 wherein said protective material is a high temperature tape.

12. The data disaster recovery storage device as claimed in claim 7, wherein a side of said metal housing is provided with a pressure relief portion, said opening being remote from said pressure relief portion.

13. The data disaster recovery storage device as claimed in claim 12, wherein the pressure relief portion is disposed on a lower surface of the metal housing, and the opening is disposed on an upper surface of the inner container.

14. The data disaster recovery storage device as claimed in claim 13, wherein the thermal insulation material layer includes an accommodating portion and a bottom plate, the inner container is covered by the accommodating portion and the bottom plate, and the relief portion is formed by a gap at a position where the bottom plate abuts against the metal cover.

15. The data disaster recovery storage device as claimed in claim 14, wherein an installation groove is formed on an inner side of the thermal insulation material layer, the installation groove is communicated with the pressure relief portion, and a wire connected to the storage chip is disposed in the installation groove.

16. The data disaster recovery storage device as in claim 15, wherein the data storage enclosure is attached to a lower surface of the housing of the inner container.