CN105889582A - Automatic air pressure balancing valve core and balancing valve - Google Patents
Automatic air pressure balancing valve core and balancing valve Download PDFInfo
- Publication number
- CN105889582A CN105889582A CN201610239499.0A CN201610239499A CN105889582A CN 105889582 A CN105889582 A CN 105889582A CN 201610239499 A CN201610239499 A CN 201610239499A CN 105889582 A CN105889582 A CN 105889582A
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- CN
- China
- Prior art keywords
- valve core
- air pressure
- balance valve
- balance
- spool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
Abstract
The invention discloses an automatic air pressure balancing valve core. The automatic air pressure balancing valve core comprises a balancing valve core base which is in a round tube shape, and the upper portion of the balancing valve core base is connected with a balancing valve core gland. A lower spring base is arranged in the center of the bottom of the balancing valve core base, the lower end of a balancing valve core spring is arranged on the lower spring base, the upper end of the balancing valve core spring is arranged in an upper spring base of a balancing valve core inner core, and the balancing valve core inner core is connected to the lower surface of the balancing valve core gland in a clamped mode. A first through hole is formed in the outer side of the balancing valve core inner core, and the first through hole is pressed by the balancing valve core gland. The invention further discloses an automatic air pressure balancing valve comprising the automatic air pressure balancing valve core. The problem that the temperature difference in a cryogenic box is prone to cause overhigh pressure and consequently the cryogenic box is difficult to open is solved. Meanwhile, condensation, frosting and freezing in a cavity of the balancing valve are prevented effectively. Smoothness of the balancing valve is guaranteed.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, be specifically related to a kind of air pressure autobalance spool and balanced valve.
Background technology
Refrigeration plant mainly has refrigerator, low-temperature cabinet etc..It mainly passes through vapor compression refrigeration.At present the temperature of some cryostates at-40 degree to-150 degree, owing to the temperature inside the box is the lowest, with case outside the temperature difference strengthen, the pressure reduction of case inner and outer air pressure is the biggest, causes the door of cryostat to be more difficult to open, brings inconvenience to use.
Summary of the invention
The present invention is to solve above-mentioned technical problem, and propose a kind of air pressure autobalance spool and balanced valve, utilize case inside and outside atmospheric pressure equilibrium principle, solve the problem that chamber door is difficult to open, also have friendship to prevent condensation, frosting, icing in bascule cavity simultaneously.
A kind of technical scheme of the present invention is: a kind of air pressure autobalance spool: including balanced valve core print seat, it is cylindrical, its top connects balance valve core gland；The center of the bottom of balanced valve core print seat is provided with spring lower seat, and balance valve core lower spring end is located on spring lower seat, and balance valve core spring upper end is located in the spring seat of honour of balance valve core inner core, and balance valve core inner core is connected to below balance valve core gland；The outside of described balance valve core inner core is provided with the first through hole, and described first through hole is balanced spool gland and is pressed in following.
Further, direction protrusion portion is had inside described balanced valve core print seat, balance valve core inner core is provided with the gathering sill coordinated with direction protrusion portion, balance valve core inner core can only be moved up and down in balanced valve core print seat, can not rotate, reduce the probability that balance valve core inner core is stuck so that Stability Analysis of Structures reliability is higher.
Further, described balance valve core inner core be there is elasticity can be with the material of deformation, when the outer atmospheric pressure active force of case adds the elastic force of balance valve core spring less than low pressure active force in case, it is possible to play sealing function.
Further, described balanced valve core print seat is provided with locating piece, the location in time being connected with balance valve core gland.
Further, being provided with the second through hole bottom described air pressure autobalance spool, balance valve core gland center is provided with third through-hole.
Another kind of technical scheme of the present invention is: a kind of air pressure automatic balancing valve, including air pressure autobalance spool, including balanced valve core print seat, it is cylindrical, its top connects has balance valve core gland, the center of the bottom of balanced valve core print seat to be provided with spring lower seat, and balance valve core lower spring end is located on spring lower seat, balance valve core spring upper end is located in the spring seat of honour of balance valve core inner core, and balance valve core inner core is connected to below balance valve core gland；The outside of described balance valve core inner core is provided with the first through hole, and described first through hole is balanced spool gland and is pressed in following；Also include the balanced valve seat of honour being connected in cabinet shell, be provided with balanced valve upper cover fixing for air pressure autobalance spool in the balanced valve seat of honour, balanced valve cover and is provided with fourth hole；Being arranged with heated seats below air pressure autobalance spool, heater strip is located in heated seats, and heater strip is most preferably wrapped in heated seats；Balance lower valve seat is located in air pressure autobalance spool bottom, balanced valve lower cover fix, and balance lower valve seat is connected to box liner；It is located at fifth hole on balance lower valve seat.
Further, air pressure autobalance spool upper outer is provided with balance valve core sleeve pipe.
Further, the different and difference of the temperature inside the box degree of depth according to cabinet insulation layer thickness, described balance valve core is one or more.
Further, direction protrusion portion is had inside balanced valve core print seat, balance valve core inner core is provided with the gathering sill coordinated with direction protrusion portion, balance valve core inner core can only be moved up and down in balanced valve core print seat, can not rotate, reduce the probability that balance valve core inner core is stuck so that Stability Analysis of Structures reliability is higher.
Further, balance valve core inner core be there is elasticity can be with the material of deformation, when the outer atmospheric pressure active force of case adds the elastic force of balance valve core spring less than low pressure active force in case, it is possible to play sealing function.
Further, balanced valve core print seat is provided with locating piece, the location in time being connected with balance valve core gland.
Further, described air pressure autobalance spool upper outer is provided with balance valve core sleeve pipe；
Further, the quantity of balance valve core sleeve pipe adjusts according to the thickness of foaming layer.
Further, the quantity of described balance valve core adjusts according to cabinet insulation layer thickness and the temperature inside the box and the degree of depth.
Further, the quantity of described balance valve core sleeve pipe adjusts according to the thickness of foaming layer.
Further, on the premise of guard box external and internal pressure can balance, when the outer atmospheric pressure active force of case > in case during the elastic force * n of low pressure active force+balance valve core spring, n is air pressure autobalance spool quantity, air outside case can enter in case, being reduction of the probability that the outer hot-air of casing is leaked in case, while realizing function of balancing air pressure, the significantly more efficient product that realizes is incubated.
Beneficial effect:Compared with prior art, present configuration is simple, can solve the pressure that cryostat causes because of the inside temperature difference too many, stubborn problem；A kind of air pressure automatic balancing valve effectively prevent condensation, frosting, icing in balanced valve cavity；Ensure that balanced valve is unobstructed.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of air pressure autobalance spool of the present invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the state diagram one of the present invention a kind of air pressure autobalance spool；
Fig. 4 is the state diagram two of the present invention a kind of air pressure autobalance spool；
Fig. 5 is the structural representation one of the present invention a kind of air pressure automatic balancing valve；
Fig. 6 is the sectional view of Fig. 5；
Fig. 7 is the top view of air pressure autobalance spool in 5；
Fig. 8 is the structural representation two of the present invention a kind of air pressure automatic balancing valve.
Detailed description of the invention
Below in conjunction with getting up, accompanying drawing describes the present invention in detail.
Embodiment 1
As shown in Figure 1-2, a kind of air pressure autobalance spool, including balanced valve core print seat 1, it is cylindrical, its top connects balance valve core gland 2, and coupling between balance valve core gland 2 with balanced valve core print seat 1 can be with all types of attachment that can be connected firmly such as thread connection, bonding and clampings.The center of the bottom of balanced valve core print seat 1 is provided with spring lower seat 15, and balance valve core spring 4 lower end is located on spring lower seat 15, and balance valve core spring 4 upper end is located in the spring seat of honour 16 of balance valve core inner core 3, and balance valve core inner core 3 is connected to below balance valve core gland 2；The outside of described balance valve core inner core 3 is provided with the first through hole, and described first through hole is balanced spool gland 2 and is pressed in following.
Balanced valve core print seat 1 is internal direction protrusion portion 17, balance valve core inner core 3 is provided with the gathering sill 18 coordinated with direction protrusion portion, balance valve core inner core 3 can only be moved up and down in balanced valve core print seat 1, can not rotate, reduce the probability that balance valve core inner core 3 is stuck so that Stability Analysis of Structures reliability is higher.
Balance valve core inner core 3 be there is elasticity can be with the material of deformation, when the outer atmospheric pressure active force of case adds the elastic force of balance valve core spring 4 less than low pressure active force in case, it is possible to play sealing function.
Balanced valve core print seat 1 is provided with locating piece 19, the location in time being connected with balance valve core gland 2.
Being provided with the second through hole bottom air pressure autobalance spool, balance valve core gland 2 center is provided with third through-hole；
As shown in Figure 3, for when under case external pressure poised state in case or under the case outer atmospheric pressure active force state less than low pressure active force in case and the elastic force sum of balance valve core spring 4, balance valve core inner core 3 is pressed on balance valve core gland 2 under the effect of balance valve core spring 4, in case with case in cannot UNICOM.
As shown in Figure 4, for under the atmospheric pressure active force state more than low pressure active force in case and the elastic force sum of balance valve core spring 4 outside case, balance valve core inner core 3 compresses balance valve core spring 4 under the outer atmospheric pressure effect of case, gap is produced between making on balance valve core inner core 3 and balance valve core gland 2, so air outside casing just can flow in case along diagram route so that the atmospheric pressure in case and outside case progressivelyes reach balance.At this moment balance valve core spring 4 works, and promotes balance valve core inner core 3 upwards action by elastic force, is pressed on balance valve core gland 2 so that case inner air and outer air completely cuts off.When the temperature inside the box reduces, and case internal gas pressure reduces so that the outer atmospheric pressure active force of case is more than the elastic force sum of low pressure active force in case with balance valve core spring 4, and balance valve core inner core 3 is opened again, and the pressure inside and outside such case is dynamic equilibrium process.
Embodiment 2
A kind of air pressure automatic balancing valve, including air pressure autobalance spool 13, including balanced valve core print seat 1, it is cylindrical, its top connects balance valve core gland 2, and coupling between balance valve core gland 2 with balanced valve core print seat 1 can be with all types of attachment that can be connected firmly such as thread connection, bonding and clampings.The center of the bottom of balanced valve core print seat 1 is provided with spring lower seat 15, and balance valve core spring 4 lower end is located on spring lower seat 15, and balance valve core spring 4 upper end is located in the spring seat of honour 16 of balance valve core inner core 3, and balance valve core inner core 3 is connected to below balance valve core gland 2；The outside of described balance valve core inner core 3 is provided with the first through hole, and described first through hole is balanced spool gland 2 and is pressed in following；Air pressure autobalance spool 13 upper outer is provided with balance valve core sleeve pipe 8；Also including the balanced valve seat of honour 6 being connected in cabinet shell 5, be provided with the fixing balanced valve upper cover 7 of air pressure autobalance spool 13 in the balanced valve seat of honour 6, balanced valve upper cover 7 is provided with fourth hole；Being arranged with heated seats 10 below air pressure autobalance spool 13, heater strip 12 is located in heated seats 10, and heater strip 12 is most preferably wrapped in heated seats 10；Balance lower valve seat 6 ' is located in air pressure autobalance spool 13 bottom, balanced valve lower cover 7 ' fix, and balance lower valve seat 6 ' is connected to box liner 11；It is located at fifth hole on balance lower valve seat 6 '.
For foaming layer 9 between case inside and outside shell 5 and box liner 11；
Different and the difference of the temperature inside the box degree of depth according to cabinet insulation layer thickness, air pressure autobalance spool 13 is one or more.
Balanced valve core print seat 1 is internal direction protrusion portion 17, balance valve core inner core 3 is provided with the gathering sill 18 coordinated with direction protrusion portion, balance valve core inner core 3 can only be moved up and down in balanced valve core print seat 1, can not rotate, reduce the probability that balance valve core inner core 3 is stuck so that Stability Analysis of Structures reliability is higher.
Balance valve core inner core 3 be there is elasticity can be with the material of deformation, when the outer atmospheric pressure active force of case adds the elastic force of balance valve core spring 4 less than low pressure active force in case, it is possible to play sealing function.
Balanced valve core print seat 1 is provided with locating piece 19, the location in time being connected with balance valve core gland 2.
Within outside case, atmospheric pressure active force is more than case under the state of the elastic force that low pressure active force adds balance valve core spring 4, case outer air aperture on balanced valve upper cover 7 enters the air pressure autobalance spool 13 being placed on balance valve core sleeve pipe 8, internal compression balance valve core spring 4 at air pressure autobalance spool 13, make to produce between balance valve core inner core 3 and balance valve core gland 2 gap, enter heated seats 10 afterwards, enter box liner 11 finally by the aperture on the balanced valve lower cover 7 ' of box liner 11 side.
Moisture can be contained owing to flowing into the air in case, be low temperature in case simultaneously, easily cause the easy condensation of balanced valve part in case, and gradually frosting, freeze, cause the blocked inefficacy of balanced valve.So increasing heated seats 10, and in heated seats 10, being wound around heater strip 12, being energized to heater strip 12, heater strip 12 generates heat, and is transferred heat in balanced valve cavity by heated seats 10, and heating flows through the air in cavity, prevent the condensation in balanced valve cavity of the moisture in air, frosting, freeze.Ensure that balanced valve is unobstructed.
The quantity of balance valve core sleeve pipe 8 adjusts according to the thickness of foaming layer 9.For the cryostat of different cryogenic temperatures, its cryogenic temperature is the lowest, and its foaming layer 9 is the thickest, and the temperature difference inside and outside case is the biggest, and the present invention has taken into full account this requirement, and for the foaming layer of different-thickness, we have only to adjust the length of balance valve core sleeve pipe 8.Remaining parts is the most generally applicable, this device highly versatile, reduces production cost.
The low-temperature cabinet that cryogenic temperature is the lowest, during refrigeration, the temperature inside the box is the lowest, air pressure in case is the lowest, pressure differential inside and outside case is the biggest, flowing into the air in case in the equal time will be the most, moisture entrained by air is the most, the risk that the cavity of balanced valve is blocked is the biggest, so air pressure autobalance spool quantity can be increased on the premise of balancing at guard box external and internal pressure, after increasing air pressure autobalance spool quantity, when the outer atmospheric pressure active force of case > in case during the elastic force * n of low pressure active force+balance valve core spring, n is air pressure autobalance spool 13 quantity, air outside case can enter in case, reduce the possibility that balanced valve is blocked.
Structure when air pressure autobalance spool 13 is multiple is as follows:
As shown in Figure 8, being shown that air pressure autobalance spool 13 is installment state when 3.
Claims (10)
1. air pressure autobalance spool, including balanced valve core print seat, it is cylindrical；It is characterized in that: described balanced valve core print seat top connects balance valve core gland；The center of the bottom of described balanced valve core print seat is provided with spring lower seat, and balance valve core lower spring end is located on spring lower seat, and balance valve core spring upper end is located in the spring seat of honour of balance valve core inner core, and balance valve core inner core is connected to below balance valve core gland；
The outside of described balance valve core inner core is provided with the first through hole, and described first through hole is balanced spool gland and is pressed in following.
2. air pressure autobalance spool as claimed in claim 1, it is characterised in that: there are direction protrusion portion, balance valve core inner core to be provided with the gathering sill coordinated with direction protrusion portion inside described balanced valve core print seat.
3. air pressure autobalance spool as claimed in claim 1, it is characterized in that: described balance valve core inner core be there is elasticity can be with the material of deformation, when the outer atmospheric pressure active force of case adds the elastic force of balance valve core spring less than low pressure active force in case, it is possible to play sealing function.
4. air pressure autobalance spool as claimed in claim 1, it is characterised in that: described balanced valve core print seat is provided with locating piece, the location in time being connected with balance valve core gland.
5. air pressure autobalance spool as claimed in claim 1, it is characterised in that: being provided with the second through hole bottom described air pressure autobalance spool, balance valve core gland center is provided with third through-hole.
6. an air pressure automatic balancing valve, including such as claim 1-5 air pressure autobalance spool as described in any one, it is characterized in that: include balanced valve core print seat, it is cylindrical, its top connects has balance valve core gland, the center in balance valve core seat bottom portion to be provided with spring lower seat, and balance valve core lower spring end is located on spring lower seat, balance valve core spring upper end is located in the spring seat of honour of balance valve core inner core, and balance valve core inner core is connected to below balance valve core gland；
The outside of described balance valve core inner core is provided with the first through hole, and described first through hole is balanced spool gland and is pressed in following；Also include the balanced valve seat of honour being connected in cabinet shell, be provided with balanced valve upper cover fixing for air pressure autobalance spool in the balanced valve seat of honour, balanced valve cover and is provided with fourth hole；Being arranged with heated seats below air pressure autobalance spool, heater strip is located in heated seats, and heater strip is most preferably wrapped in heated seats；Balance lower valve seat is located in air pressure autobalance spool bottom, balanced valve lower cover fix, and balance lower valve seat is connected to box liner；It is located at fifth hole on balance lower valve seat.
7. air pressure automatic balancing valve as claimed in claim 6, it is characterised in that: described air pressure autobalance spool upper outer is provided with balance valve core sleeve pipe.
8. air pressure automatic balancing valve as claimed in claim 6, it is characterised in that: the quantity of described balance valve core adjusts according to cabinet insulation layer thickness and the temperature inside the box and the degree of depth.
9. air pressure automatic balancing valve as claimed in claim 7, it is characterised in that: the quantity of described balance valve core sleeve pipe adjusts according to the thickness of foaming layer.
10. air pressure automatic balancing valve as claimed in claim 6, it is characterized in that: on the premise of guard box external and internal pressure can balance, when the outer atmospheric pressure active force of case > in case during the elastic force * n of low pressure active force+balance valve core spring, n is air pressure autobalance spool quantity, air outside case can enter in case, reduce the probability that the outer hot-air of casing is leaked in case, while realizing function of balancing air pressure, it is achieved product is incubated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239499.0A CN105889582A (en) | 2016-04-18 | 2016-04-18 | Automatic air pressure balancing valve core and balancing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610239499.0A CN105889582A (en) | 2016-04-18 | 2016-04-18 | Automatic air pressure balancing valve core and balancing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889582A true CN105889582A (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610239499.0A Pending CN105889582A (en) | 2016-04-18 | 2016-04-18 | Automatic air pressure balancing valve core and balancing valve |
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| Country | Link |
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| CN (1) | CN105889582A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679276A (en) * | 2016-12-05 | 2018-10-19 | 陈博思 | A kind of pneumatic control valve |
| CN110553458A (en) * | 2019-09-29 | 2019-12-10 | 海信容声(广东)冷柜有限公司 | Pressure balancing device for refrigerator |
| CN112780814A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔特种电冰柜有限公司 | Adjustable air pressure balance valve and refrigeration device using same |
| CN113693741A (en) * | 2021-09-10 | 2021-11-26 | 四川大学华西医院 | Controllable system and method for gas perfusion |
| CN117515237A (en) * | 2024-01-04 | 2024-02-06 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
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| CN2253454Y (en) * | 1996-04-08 | 1997-04-30 | 李渝嘉 | Pressure-balancing device for chilling chamber of refrigerator |
| US6397620B1 (en) * | 2000-11-06 | 2002-06-04 | Spx Corporation | Ultra-low temperature freezer cabinet utilizing vacuum insulated panels |
| CN2872230Y (en) * | 2005-12-09 | 2007-02-21 | 中国国际海运集装箱(集团)股份有限公司 | Refrigerator with pressure adjuster |
| CN202902742U (en) * | 2012-10-24 | 2013-04-24 | 海尔集团公司 | Balance valve used for opening and closing of door of refrigerator and refrigerator provided with balance valve |
| CN103673469A (en) * | 2012-09-26 | 2014-03-26 | 海尔集团公司 | Freezer |
| CN104110927A (en) * | 2014-05-23 | 2014-10-22 | 青岛澳柯玛超低温冷冻设备有限公司 | Frosting-proof air pressure balance structure on low-temperature equipment |
| US20160084394A1 (en) * | 2014-09-19 | 2016-03-24 | Engineered Controls International, Llc | Noise reduction relief valve for cryogenic liquid containers |
| CN205715852U (en) * | 2016-04-18 | 2016-11-23 | 吴楠 | Air pressure autobalance spool |
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- 2016-04-18 CN CN201610239499.0A patent/CN105889582A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2253454Y (en) * | 1996-04-08 | 1997-04-30 | 李渝嘉 | Pressure-balancing device for chilling chamber of refrigerator |
| US6397620B1 (en) * | 2000-11-06 | 2002-06-04 | Spx Corporation | Ultra-low temperature freezer cabinet utilizing vacuum insulated panels |
| CN2872230Y (en) * | 2005-12-09 | 2007-02-21 | 中国国际海运集装箱(集团)股份有限公司 | Refrigerator with pressure adjuster |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679276A (en) * | 2016-12-05 | 2018-10-19 | 陈博思 | A kind of pneumatic control valve |
| CN108679276B (en) * | 2016-12-05 | 2019-07-09 | 陈博思 | A kind of pneumatic control valve |
| CN110553458A (en) * | 2019-09-29 | 2019-12-10 | 海信容声(广东)冷柜有限公司 | Pressure balancing device for refrigerator |
| CN112780814A (en) * | 2019-11-07 | 2021-05-11 | 青岛海尔特种电冰柜有限公司 | Adjustable air pressure balance valve and refrigeration device using same |
| CN113693741A (en) * | 2021-09-10 | 2021-11-26 | 四川大学华西医院 | Controllable system and method for gas perfusion |
| CN117515237A (en) * | 2024-01-04 | 2024-02-06 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
| CN117515237B (en) * | 2024-01-04 | 2024-04-02 | 珠海格力电器股份有限公司 | Balancing valve, refrigerating device and control method |
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Application publication date: 20160824 |
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