CN1979067B - Refrigerator with pressure regulation device - Google Patents
Refrigerator with pressure regulation device Download PDFInfo
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- CN1979067B CN1979067B CN200510120632A CN200510120632A CN1979067B CN 1979067 B CN1979067 B CN 1979067B CN 200510120632 A CN200510120632 A CN 200510120632A CN 200510120632 A CN200510120632 A CN 200510120632A CN 1979067 B CN1979067 B CN 1979067B
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- regulating device
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 description 6
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- 238000010586 diagram Methods 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses a cold machine carrying pressure adjusting device. It includes cold machine identity, which includes box inner side and box outer side. The feature is that it also includes a pressure adjusting device. The invention could realize adjusting sealing space pressure, and protecting sealing space structure. It has the advantages of simple structure, reliable and easy to apply.
Description
Technical field
The present invention relates to refrigeration plant, more particularly, relate to a kind of cold machine that has pressure-regulating device.
Background technology
Cold machine is the refrigeration plant for confined space work, as the cold machine of frozen products insulated container and refrigerator car.In order to prevent that confined space from leaking heat, reduce refrigeration and waste energy, confined space all has good sealing effectiveness usually.But, owing to the inside and outside variations in temperature of confined space, can cause the inside and outside draught head that produces of confined space, this draught head can cause damage or destruction to the structure of confined space such as the body structure of frozen products insulated container or refrigerator car.
Existing cold machine does not have pressure-regulating device, can not carry out pressure to the confined space of its refrigeration and regulate, and reaches the purpose of protection confined space structure.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of cold machine that has pressure-regulating device is provided, and can carry out pressure to the confined space of its refrigeration and regulate, and reaches the purpose of protection confined space structure.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of cold machine that has pressure-regulating device, comprise cold machine body, this cold machine body comprises the inboard and case outside of case, it is characterized in that, also comprise the pressure-regulating device that is installed on this cold machine body and runs through this cold machine body; Described pressure-regulating device 4 comprises protecgulum, bonnet, atmospheric pressure board, atmospheric pressure board guider, sealing ring, flexible member and flexible member guider, wherein, described protecgulum comprises base plate and ring-type side plate, and this base plate and ring-type side plate constitute the space of tubular, and this base plate is provided with through hole; It is inboard and surround through hole on the protecgulum base plate that described sealing ring is located at the protecgulum base plate; Described atmospheric pressure board is positioned at the space of the inboard tubular of protecgulum and is parallel to the protecgulum base plate, and described atmospheric pressure board is provided with the through hole of the sealing surface view field that is positioned at described sealing ring; Described atmospheric pressure board guider guide described atmospheric pressure board steadily to move and when described atmospheric pressure board is fitted with described sealing ring the through hole of assurance atmospheric pressure board be positioned at described sealing ring sealing surface view field; Described bonnet comprises base plate, and this base plate is provided with through hole; Described flexible member guider is between described atmospheric pressure board and the described bonnet and be connected on described atmospheric pressure board or the described bonnet, and described flexible member promotes described atmospheric pressure board by described flexible member guider and is pressed on the described sealing ring.
In the cold machine that has a pressure-regulating device of the present invention, described cold machine body comprises the installing hole that matches with described pressure-regulating device, and this pressure-regulating device is installed in the described installing hole and with this cold machine body and is tightly connected.
In the cold machine that has a pressure-regulating device of the present invention, comprise the circulus of sealing between described protecgulum and the described bonnet.
In the cold machine that has a pressure-regulating device of the present invention, described atmospheric pressure board guider comprises described protecgulum side plate medial surface and the described atmospheric pressure board outer rim side that is slidingly matched with this protecgulum side plate medial surface, or comprises and be positioned at described protecgulum side plate inboard along the gathering sill of described atmospheric pressure board direction of motion setting be positioned at this atmospheric pressure board outer rim corresponding to described gathering sill and be positioned at the guiding pin that this gathering sill slides.
In the cold machine that has a pressure-regulating device of the present invention, described atmospheric pressure board guider comprises guide finger and guide plate, and described guide finger is connected with described atmospheric pressure board, and its axis is parallel with the direction of motion of this atmospheric pressure board; Described guide plate comprises air-flow through hole and the pilot hole corresponding with described guide finger, and this guide finger is corresponding to be inserted in the described pilot hole, and this guide plate is connected the front end of described protecgulum side plate.
In the cold machine that has a pressure-regulating device of the present invention, described protecgulum side plate is a cylindrical shape, and described atmospheric pressure board guider and flexible member guider are balanced to be arranged, guarantees this atmospheric pressure board motion and stress balance.
In the cold machine that has a pressure-regulating device of the present invention, described flexible member is a column type compression spring, described flexible member guider comprises vertical and is connected on the described atmospheric pressure board or vertical and be connected in guide pillar on the described bonnet, suitable distance of distance that the length of this guide pillar is installed back atmospheric pressure board medial surface and bonnet medial surface less than this pressure-regulating device is to guarantee a rational stroke of atmospheric pressure board space; The diameter of this guide pillar is slightly less than the internal diameter of described spring, and described spring housing is on this guide pillar.
In the cold machine that has a pressure-regulating device of the present invention, described flexible member is a column type compression spring, described flexible member guider comprises vertical and is connected on the described atmospheric pressure board or vertical and be connected in guide cylinder on the described bonnet, suitable distance of distance that the length of this guide cylinder is installed back atmospheric pressure board medial surface and bonnet medial surface less than this pressure-regulating device is to guarantee a rational stroke of atmospheric pressure board space; The internal diameter of this guide cylinder is slightly larger than the external diameter of described spring, and described spring inserts in this guide cylinder.
In the cold machine that has a pressure-regulating device of the present invention, the circulus that seals between described protecgulum and the bonnet comprises the annular seal ring that side plate and the described bonnet base plate with described protecgulum ring-type is tightly connected; Described protecgulum and bonnet comprise by the extended flange of its base plate, and this flange is tightly connected outside the inboard and case with the case of described cold machine body respectively.
In the cold machine that has a pressure-regulating device of the present invention, described bonnet comprises the ring-type side plate that is vertically extended by its base plate, this base plate and side plate constitute the space of tubular, and the circulus that seals between described protecgulum and the bonnet comprises cold machine body construction or the annular seal ring that is tightly connected with described protecgulum ring-type side plate and described bonnet ring-type side plate; Described protecgulum and bonnet comprise by the extended flange of its base plate, and this flange is tightly connected outside the inboard and case with the case of described cold machine body respectively.
In the cold machine that has a pressure-regulating device of the present invention, described cold machine body construction comprises the installation tube that is positioned at described cold machine body installing hole and cooperates with described pressure-regulating device.
In the cold machine that has a pressure-regulating device of the present invention, described pressure-regulating device also comprises calutron and pressure measurement control device, this calutron is connected on described atmospheric pressure board or the described bonnet, and described pressure measurement control device is connected in series with power supply and described calutron and is positioned at described cold machine body case inboard.
In the cold machine that has a pressure-regulating device of the present invention, described flexible member guider comprises and is connected on the described atmospheric pressure board or vertical and be connected in guide cylinder on the described bonnet that described calutron is the coil that is sleeved on the described guide cylinder vertical.
In the cold machine that has a pressure-regulating device of the present invention, described pressure measurement control device comprises baroceptor, IC table and switch, this IC table is electrically connected with this baroceptor and switch respectively, this baroceptor is surveyed the inboard air pressure of described cold machine body case, and the air pressure electrical signal transfer shown to IC, this air pressure signal of telecommunication of IC list processing is also exported control signal and is given switch, and this switch is connected in series with power supply and described calutron and moves according to this control signal.
In the cold machine that has a pressure-regulating device of the present invention, the described air pressure signal of telecommunication is voltage signal or current signal, this air pressure signal of telecommunication of described IC list processing comprises this air pressure signal of telecommunication of amplification, described switch is a relay switch, two end value P1 and the P2 correspondence of scope P1＜P＜P2 of the case internal gas pressure P that this relay switch is regulated according to hope are provided with two working values, when this air pressure signal of telecommunication that amplifies is in this two working values scope, this relay switch keeps disconnecting described pressure-regulating device closure; When this air pressure signal of telecommunication that amplifies equals this two working value or beyond this two working values scope the time, this relay switch closure, described pressure-regulating device is opened.
In the cold machine that has a pressure-regulating device of the present invention, the described air pressure signal of telecommunication is voltage signal or current signal, described switch is relay switch or transistor switch, described IC table comprises that two end value P1 and the P2 correspondence of scope P1＜P＜P2 of the case internal gas pressure P that regulates according to hope are provided with two working values, this air pressure signal of telecommunication of described IC list processing comprises that amplifying this air pressure signal of telecommunication and this air pressure signal of telecommunication that will amplify and this two working values carries out signal relatively, the IC table stops to handle when this air pressure signal of telecommunication that amplifies is in this two actuating ranges value, described switch keeps disconnecting described pressure-regulating device closure; When this air pressure signal of telecommunication that amplifies equals this two working value or beyond this two working values scope the time, this IC table output control signal is controlled described switch closure, described pressure-regulating device is opened.
In the cold machine that has a pressure-regulating device of the present invention, described pressure measurement control device comprises the air pressure control box, this air pressure control box comprises sealing and has the box body of a predetermined box internal gas pressure, two quiet conducting end that are arranged in this box body and keep at a certain distance away and the moving conductive end between this quiet conducting end, this box body is provided with the pressure-sensitive film, these two one of quiet conducting end are the near quiet conducting end nearer apart from this pressure-sensitive film, another is the far away quiet conducting end far away apart from this pressure-sensitive film, and this moving conductive end is connected with this pressure-sensitive membrane rigidity and can moves between described quiet conducting end with the distortion of this pressure-sensitive film; Distance between this quiet conducting end and this moving conductive end satisfy following condition: when the case internal gas pressure P this air pressure control box outside is within two end value P1 of the case internal gas pressure scope of hope adjusting and P2, when being P1＜P＜P2, this pressure-sensitive film drives this moving conductive end between this nearly quiet conducting end and quiet conducting end far away; When this case internal gas pressure P≤P1, this pressure-sensitive film drives this nearly quiet conducting end of this moving conductive end in contact, and when this case internal gas pressure P 〉=P2, this pressure-sensitive film drives this quiet conducting end far away of this moving conductive end in contact; This two quiet conducting end sealed insulation in parallel is drawn described box body, and as an output of this pressure measurement control device, this moving conductive end sealed insulation is drawn described box body, as another output of this pressure measurement control device; Described two outputs are connected in series with power supply and described calutron.
Implement the cold machine that has pressure-regulating device of the present invention, have following beneficial effect:
1. regulate confined space pressure, protection confined space structure.
2. simple in structure, protection is reliable, implements easily.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is that a kind of cold machine that has pressure-regulating device of the present invention is installed in the profile on the refrigerating box.
Fig. 2 is an A portion enlarged drawing among Fig. 1, and the embodiment one of the pressure-regulating device 200 that is in closed condition is shown.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the open mode schematic diagram of the pressure-regulating device 200 of embodiment one.
Fig. 5 is an A portion enlarged drawing among Fig. 1, and the embodiment two of the pressure-regulating device 200 that is in closed condition is shown.
Fig. 6 is the open mode schematic diagram of the pressure-regulating device 200 of embodiment two.
Fig. 7 is the structured flowchart of the pressure measurement control device embodiment one of a kind of cold machine pressure-regulating device that has a pressure-regulating device of the present invention.
Fig. 8 is the operation principle block diagram of the pressure measurement control device embodiment one of a kind of cold machine pressure-regulating device that has a pressure-regulating device of the present invention.
Fig. 9 is the outside duty of distortion of structural representation pressure-sensitive film of the pressure measurement control device embodiment three of a kind of cold machine pressure-regulating device that has a pressure-regulating device of the present invention.
Figure 10 is that the structural representation pressure-sensitive film of pressure measurement control device embodiment three of a kind of cold machine pressure-regulating device that has a pressure-regulating device of the present invention is to enterolithic duty.
The specific embodiment
A kind of cold machine that has pressure-regulating device of the present invention can be used on the refrigeration plants such as refrigerating box, refrigerator car, below is that example describes with the utilization of the present invention on refrigerating box.
Fig. 1 shows a kind of cold machine that has pressure-regulating device of the present invention and is installed in profile on the refrigerating box.Cold machine of the present invention comprises cold machine body 100 and the pressure-regulating device 200 that runs through on this cold machine body 100.This cold machine body 100 has with respect to refrigerating box 300 outside the inboard and case of case, and pressure-regulating device 200 is installed in the through hole on the cold machine body 100 and with cold machine body 100 and is tightly connected in the present embodiment.In other embodiments, pressure-regulating device 200 also can be installed in the groove that is opened on the cold machine body frontside edge and with cold machine body 100 and be tightly connected.
Fig. 2 shows the embodiment one of the pressure-regulating device 200 of a kind of cold machine that has a pressure-regulating device of the present invention.
As shown in Figure 2, this pressure-regulating device 200 comprises protecgulum 1, bonnet 2, atmospheric pressure board 3, guide finger 4, guide plate 5, bourdon tube 6, cylinder-shaped compression spring 7 and sealing ring 9, and detailed structure is as follows:
Protecgulum 1 comprises base plate 11, ring-type side plate 12 and flange 13, and base plate 11 and ring-type side plate 12 constitute the space of tubular, have through hole 14 on the base plate 11; Sealing ring 9 is positioned at the inboard of protecgulum base plate 11 and surrounds the through hole 14 of protecgulum base plate; Atmospheric pressure board 3 is positioned at the space of protecgulum tubular and is parallel to protecgulum base plate 11, has through hole 32 on the atmospheric pressure board 3, and through hole 32 is positioned at the sealing surface view field of sealing ring 9.
Guide finger 4, guide plate 5 constitute the atmospheric pressure board guider, wherein guide finger 4 is connected with atmospheric pressure board 3, have airflow hole 51 on the guide plate 5 and corresponding to the pilot hole 52 of guide finger 4, guide finger 4 inserts in the pilot hole 52 atmospheric pressure board 3 move left and right is led, and guarantees atmospheric pressure board 3 easy motions and guarantee that the through hole 32 of atmospheric pressure board 3 is positioned at the sealing surface view field of sealing ring 9 when atmospheric pressure board 3 is fitted with sealing ring 9.This guide plate 5 is connected the front end of protecgulum ring-type side plate 12, and present embodiment is arranged between protecgulum ring-type side plate 12 and the bonnet ring-type side plate 22, the structure that also can adopt guide plate 5 to be threaded with the front end of protecgulum ring-type side plate 12.
In other embodiments, the atmospheric pressure board guider can adopt that the direction of motion along atmospheric pressure board 3 is provided with gathering sill in protecgulum ring-type side plate 12 inboards, outer rim at atmospheric pressure board 3 is provided with the guiding pin corresponding to gathering sill, and the guiding pin is positioned at this gathering sill and slides, and realizes guiding.Can also adopt the identical and atmospheric pressure board lateral surface that matches of shape and protecgulum ring-type side plate 12 medial surfaces to match leads to atmospheric pressure board 3.
The protecgulum 1 that connects cold machine pressure-regulating device is airtight with circulus needs of bonnet 2, can not cause gas leakage, the hot phenomenon of leakage with space in the case that guarantees the installment work of cold machine institute.In the present embodiment, this airtight circulus is the installation tube 8 that is tightly connected with protecgulum ring-type side plate 12 and bonnet ring-type side plate 22.The structure that this airtight circulus can adopt protecgulum ring-type side plate 12 and bonnet ring-type side plate 22 and cold machine body construction to be tightly connected, also can adopt and protecgulum ring-type side plate 12 and the bonnet ring-type side plate 22 annular seal coil structures that is tightly connected, can also adopt the protecgulum ring-type side plate 12 and the bonnet ring-type side plate 22 that are tightly connected mutually, be threaded with bonnet ring-type side plate 22 or tight fit is connected etc. as protecgulum ring-type side plate 12.
In other embodiments, bonnet 2 can not be provided with ring-type side plate 22.
Bourdon tube 6 is connected in bonnet 2 base plates 24 inboards, the internal diameter of bourdon tube 6 is slightly larger than the external diameter of cylinder-shaped compression spring 7, cylinder-shaped compression spring 7 is inserted in the bourdon tube 6 and led by it, suitable distance of distance that the length of bourdon tube 6 is installed back atmospheric pressure board 3 medial surfaces and bonnet 3 medial surfaces less than pressure-regulating device is to guarantee that atmospheric pressure board 3 has a rational stroke space. and cylinder-shaped compression spring 7 promotes atmospheric pressure board 3 by this bourdon tube 6 and is pressed on the sealing ring 9. and bourdon tube 6 also can be connected in the inboard of atmospheric pressure board 3.
Cylinder-shaped compression spring 7 can adopt cone shaped spring or cylindrical shape rubber column to replace.When adopting cone shaped spring, its guider can adopt short round platform or short cylinder corresponding to the big end of cone shaped spring, and short round platform or short cylinder can be connected in the inboard of bonnet 2 base plates, 24 inboards or atmospheric pressure board 3.
The guiding of cylinder-shaped compression spring 7 can also adopt the guide pillar that fixedly connected to the inner side 31 with atmospheric pressure board 3, suitable distance of distance that the length of this guide pillar 31 is installed back atmospheric pressure board 3 medial surfaces and bonnet 2 medial surfaces less than pressure-regulating device is to guarantee that atmospheric pressure board 3 has a rational stroke space; The diameter of guide pillar 31 is slightly less than the internal diameter of cylinder-shaped compression spring 7, and cylinder-shaped compression spring 7 is enclosed within on this guide pillar 31 and leads.Guide pillar 31 also can be connected in bonnet 2 base plates 24 inboards.Guide pillar guiding and bourdon tube guiding can be used separately spring is led, and have used this two kinds of guide frames in the present embodiment simultaneously, and guide pillar 31 inserts in the bourdon tube 6.
For guaranteeing the steady and stress balance of atmospheric pressure board 3 motions, the guider of cylinder-shaped compression spring 7 should balanced arrangement.
The flange 13 of protecgulum 1 and the flange 23 of bonnet 2 are with this inside and outside biside plate welding of cold machine or rivet during for convenient the installation, when the installation site of pressure-regulating device 200 inside and outside biside plate on cold machine body processes when accurate, protecgulum 1 and bonnet 2 can not established flange 13 and flange 23.Pressure-regulating device 200 can adopt fluid sealant to seal with the junction of this inside and outside biside plate of cold machine, prevents that the junction from leaking.
As shown in Figure 4, the operation principle of this cold machine pressure-regulating device 200 is as follows:
When the body inside and outside air pressure balance of cold machine work, atmospheric pressure board 3 is pushed down protecgulum 1 under the active force of spring 7, and sealing ring 9 is arranged between the two, and the also sealed circle 9 in ventilation 32 holes on the atmospheric pressure board 3 is blocked, and prevents unnecessary exchange heat and water inlet.When the casing internal gas pressure is lower than atmospheric pressure outside the case, because of on bonnet 2 and the guide plate 5 passage being arranged all, so just produced draught head in atmospheric pressure board 3 left and right sides, and the outer air pressure of case is higher than the case internal gas pressure, this draught head just produces pressure compression spring 7 in the left surface of atmospheric pressure board 3, atmospheric pressure board 3 separates with protecgulum 1, air is along the through hole 14 of the direction of arrow through protecgulum 1, the passage 32 of atmospheric pressure board 3, the passage 51 of guide plate 5 and the passage 21 of bonnet 2 enter in the case, with the tandem-driving bogie inner and outer air pressure, after the case inner and outer air pressure reached balance, atmospheric pressure board 3 was got back to the closed position again under the effect of spring 7.
The cold machine pressure-regulating device of this embodiment can be used for the hermetic type container need reconcile the occasion of case external and internal pressure to prevent that casing from destroying.
When the pressure-regulating device of this embodiment is installed on the cold machine body, can install one, two or more as required.Its installation direction as shown in Figure 2 when a pressure-regulating device was installed: protecgulum is positioned at the cold cabinet outside, and bonnet is positioned at cold cabinet inboard, so that the casing external pressure is during greater than interior pressure, the case outer air adds in the case.When two or more pressure-regulating device is installed, the protecgulum of at least one pressure-regulating device is positioned at the cold cabinet outside, bonnet is positioned at cold cabinet inboard, the protecgulum of at least one pressure-regulating device is positioned at cold cabinet inboard, bonnet is positioned at the cold cabinet outside, so that the inside and outside air of casing exchanges, reach the case internal and external pressure balance when pressure differential changes.
Fig. 5 shows the embodiment two of the pressure-regulating device 200 of a kind of cold machine that has a pressure-regulating device of the present invention.
The structure of embodiment two is identical with embodiment one described structure and variation thereof, embodiment two is with the difference of embodiment one, has increased pressure measurement control device and the calutron of surveying case internal gas pressure and the action of controlled pressure adjusting device. followingly be described in detail increasing part-structure.
As shown in Figure 5, calutron adopts pocketed springs pipe 6 and is connected in coil 201 on the bonnet 2, and two rear line heads of coil 201 are drawn bonnet 2 and are connected in series by lead 202 and power supply 205 and the pressure measurement control device 203 that is arranged on cold machine body case inboard.Power supply 205 can utilize cold machine AC power, also can establish dc source in addition.
Calutron can also directly adopt the electromagnet that is connected in bonnet base plate 24 inboards or is connected in atmospheric pressure board 3 inboards.The uniform setting of calutron is to guarantee atmospheric pressure board 3 stress balances.Calutron can be provided with one or more.Atmospheric pressure board 3 is subjected to spring 7 effects to compress sealing ring 9 during the calutron outage, and pressure-regulating device is in closed condition; In calutron when energising, produce magnetic force and atmospheric pressure board 3 adhesives are overcome spring force separate with sealing ring 9, and pressure-regulating device is in open mode, as shown in Figure 6.
Fig. 7 shows embodiment one structured flowchart of pressure measurement control device 203.Pressure measurement control device 203 comprises baroceptor 2031, IC table 2032, switch 2033, IC table 2032 is connected with baroceptor 2031, switch 2033 respectively by lead 2034, and baroceptor 2031, IC table 2032, switch 2033 are placed in the box body 2035.
The operation principle of the pressure measurement control device 203 of present embodiment as shown in Figure 8.Two the end value P1 of the case internal gas pressure scope P1＜P＜P2 that regulates according to hope and P2, corresponding default two working values IC table 2032 in, switch 2033 employing relay switch or transistor switches.Baroceptor 2031 detection case internal gas pressures also are converted to the curtage signal and pass to IC table 2032, IC table 2032 amplifies the curtage signal that receives, and the received signal after will amplifying compares with two working values presetting, when the received signal after the amplification is in this two actuating ranges value, IC table 2032 stops to handle, switch 2033 keeps disconnecting pressure-regulating device 200 closures; Received signal after amplifying equals this two working value or beyond this two working values scope the time, this IC table 2032 is to switch 2033 output control signals, switch 2033 closures, the atmospheric pressure board 3 of calutron 201 adhesive pressure-regulating devices 200, pressure-regulating device 200 is opened.
Embodiment two structures of pressure measurement control device 203 also adopt structure shown in Figure 7, be with embodiment one difference, switch 2033 adopts relay switch, and two end value P1 of the case internal gas pressure scope P1＜P＜P2 that regulates according to hope in this relay switch and P2 correspondence are provided with two working values, IC table 2032 passes to switch 2033 after amplifying the air pressure signal of telecommunication that receives, when in the two working value scopes of the air pressure signal of telecommunication in this setting of amplifying, switch 2033 keeps disconnecting pressure-regulating device 200 closures; In the time of beyond the air pressure signal of telecommunication that amplifies equals two working values of this setting or two working value scopes in this setting, switch 2033 closures, the atmospheric pressure board 3 of calutron 201 adhesive pressure-regulating devices 200, pressure-regulating device 200 is opened.
Fig. 9 shows the structural representation of the embodiment three of pressure measurement control device 203.As shown in Figure 9, pressure measurement control device 203 comprises air pressure control box 2041, be arranged on air pressure control box 2041 interior and keep at a certain distance away nearly stationary contact bar 2038 and stationary contact bars 2036 far away, and the T font movable feeler lever 2037 between nearly stationary contact bar 2038 and stationary contact bar 2036 far away, 2041 sealings of air pressure control box also have a predetermined box internal gas pressure, usually be set at an atmospheric pressure, pressure-sensitive film 2040 is set on the box body, and the vertical part of T font movable feeler lever 2037 links to each other with pressure-sensitive film 2040 centers by pull bar 2039.Nearly stationary contact bar 2038 and stationary contact bar far away 2036 also sealed insulations in parallel are drawn air pressure control box 2041, as an output of pressure measurement control device 203; T font movable feeler lever 2037 sealed insulations are drawn air pressure control box 2041, as another output of pressure measurement control device 203.These two outputs are connected in series with power supply 205 and calutron 201 by lead 202.
Distance and T font movable feeler lever 2037 between nearly stationary contact bar 2038 and the stationary contact bar 2036 far away satisfy following condition: when the case internal gas pressure P outside the air pressure control box 2041 was in case internal gas pressure scope P1＜P＜P2 that hope is regulated, pressure-sensitive film 2040 drove this T font movable feeler lever 2037 between this nearly stationary contact bar 2038 and stationary contact bar 2036 far away; When this case internal gas pressure P≤P1, pressure-sensitive film 2040 drives this T font movable feeler lever 2037 these nearly stationary contact bars 2038 (as shown in Figure 9) of contact, when this case internal gas pressure P 〉=P2, pressure-sensitive film 2040 drives this T font movable feeler lever 2037 these stationary contact bars 2036 far away (as shown in figure 10) of contact.
Nearly stationary contact bar 2038 and stationary contact bar 2036 far away can replace with stationary contact, and T font movable feeler lever 2037 can replace with movable contact, and movement locus that can also corresponding movable contact is provided with guider, the accurate motion of assurance movable contact.
Claims (17)
1. a cold machine that has pressure-regulating device comprises cold machine body, and this cold machine body comprises the inboard and case outside of case, it is characterized in that, also comprises the pressure-regulating device that is installed on this cold machine body and runs through this cold machine body; Described pressure-regulating device comprises protecgulum, bonnet, atmospheric pressure board, atmospheric pressure board guider, sealing ring, flexible member and flexible member guider, wherein, described protecgulum comprises base plate and ring-type side plate, and this base plate and ring-type side plate constitute the space of tubular, and this base plate is provided with through hole; It is inboard and surround through hole on the protecgulum base plate that described sealing ring is located at the protecgulum base plate; Described atmospheric pressure board is positioned at the space of protecgulum tubular and is parallel to the protecgulum base plate, and described atmospheric pressure board is provided with the through hole of the sealing surface view field that is positioned at described sealing ring; Described atmospheric pressure board guider guide described atmospheric pressure board steadily to move and when described atmospheric pressure board is fitted with described sealing ring the through hole of assurance atmospheric pressure board be positioned at described sealing ring sealing surface view field; Described bonnet comprises base plate, and this base plate is provided with through hole; Described flexible member guider is between described atmospheric pressure board and the described bonnet and be connected on described atmospheric pressure board or the described bonnet, and described flexible member promotes described atmospheric pressure board by described flexible member guider and is pressed on the described sealing ring.
2. the cold machine that has pressure-regulating device according to claim 1, it is characterized in that: described cold machine body comprises the installing hole that matches with described pressure-regulating device, and this pressure-regulating device is installed in the described installing hole and with this cold machine body and is tightly connected.
3. the cold machine that has pressure-regulating device according to claim 2 is characterized in that: the circulus that comprises sealing between described protecgulum and the described bonnet.
4. the cold machine that has pressure-regulating device according to claim 3, it is characterized in that: described atmospheric pressure board guider comprises described protecgulum side plate medial surface and the described atmospheric pressure board outer rim side that is slidingly matched with this protecgulum side plate medial surface, or comprises and be positioned at described protecgulum side plate inboard along the gathering sill of described atmospheric pressure board direction of motion setting be positioned at this atmospheric pressure board outer rim corresponding to described gathering sill and be positioned at the guiding pin that this gathering sill slides.
5. the cold machine that has pressure-regulating device according to claim 3 is characterized in that: described atmospheric pressure board guider comprises guide finger and guide plate, and described guide finger is connected with described atmospheric pressure board, and its axis is parallel with the direction of motion of this atmospheric pressure board; Described guide plate comprises air-flow through hole and the pilot hole corresponding with described guide finger, and this guide finger is corresponding to be inserted in the described pilot hole, and this guide plate is connected the front end of described protecgulum side plate.
6. the cold machine that has pressure-regulating device according to claim 5 is characterized in that: described protecgulum side plate is a cylindrical shape, and described atmospheric pressure board guider and flexible member guider are balanced to be arranged, guarantees this atmospheric pressure board motion and stress balance.
7. the cold machine that has pressure-regulating device according to claim 6, it is characterized in that: described flexible member is a column type compression spring, described flexible member guider comprises vertical and is connected on the described atmospheric pressure board or vertical and be connected in guide pillar on the described bonnet, suitable distance of distance that the length of this guide pillar is installed back atmospheric pressure board medial surface and bonnet medial surface less than this pressure-regulating device is to guarantee a rational stroke of atmospheric pressure board space; The diameter of this guide pillar is slightly less than the internal diameter of described spring, and described spring housing is on this guide pillar.
8. the cold machine that has pressure-regulating device according to claim 6, it is characterized in that: described flexible member is a column type compression spring, described flexible member guider comprises vertical and is connected on the described atmospheric pressure board or vertical and be connected in guide cylinder on the described bonnet, suitable distance of distance that the length of this guide cylinder is installed back atmospheric pressure board medial surface and bonnet medial surface less than this pressure-regulating device is to guarantee a rational stroke of atmospheric pressure board space; The internal diameter of this guide cylinder is slightly larger than the external diameter of described spring, and described spring inserts in this guide cylinder.
9. the cold machine that has pressure-regulating device according to claim 8 is characterized in that: the circulus that seals between described protecgulum and the bonnet comprises the annular seal ring that side plate and the described bonnet base plate with described protecgulum ring-type is tightly connected; Described protecgulum and bonnet comprise by the extended flange of its base plate, and this flange is tightly connected outside the inboard and case with the case of described cold machine body respectively.
10. the cold machine that has pressure-regulating device according to claim 8, it is characterized in that: described bonnet comprises the ring-type side plate that is vertically extended by its base plate, this base plate and side plate constitute the space of tubular, and the circulus that seals between described protecgulum and the bonnet comprises cold machine body construction or the annular seal ring that is tightly connected with described protecgulum ring-type side plate and described bonnet ring-type side plate; Described protecgulum and bonnet comprise by the extended flange of its base plate, and this flange is tightly connected outside the inboard and case with the case of described cold machine body respectively.
11. the cold machine that has pressure-regulating device according to claim 10 is characterized in that: described cold machine body construction comprises the installation tube that is positioned at described cold machine body installing hole and cooperates with described pressure-regulating device.
12. the cold machine that has pressure-regulating device according to claim 1, it is characterized in that: described pressure-regulating device also comprises calutron and pressure measurement control device, this calutron is connected on described atmospheric pressure board or the described bonnet, and described pressure measurement control device is connected in series with power supply and described calutron and is positioned at described cold machine body case inboard.
13. the cold machine that has pressure-regulating device according to claim 12, it is characterized in that: described flexible member guider comprises and is connected on the described atmospheric pressure board or vertical and be connected in guide cylinder on the described bonnet that described calutron is the coil that is sleeved on the described guide cylinder vertical.
14. the cold machine that has pressure-regulating device according to claim 13, it is characterized in that: described pressure measurement control device comprises baroceptor, IC table and switch, this IC table is electrically connected with this baroceptor and switch respectively, this baroceptor is surveyed the inboard air pressure of described cold machine body case, and the air pressure electrical signal transfer shown to IC, this air pressure signal of telecommunication of IC list processing is also exported control signal and is given switch, and this switch is connected in series with power supply and described calutron and moves according to this control signal.
15. the cold machine that has pressure-regulating device according to claim 14, it is characterized in that: the described air pressure signal of telecommunication is voltage signal or current signal, this air pressure signal of telecommunication of described IC list processing comprises this air pressure signal of telecommunication of amplification, described switch is a relay switch, two end value P1 and the P2 correspondence of scope P1＜P＜P2 of the case internal gas pressure P that this relay switch is regulated according to hope are provided with two working values, when this air pressure signal of telecommunication that amplifies is in this two working values scope, this relay switch keeps disconnecting described pressure-regulating device closure; When this air pressure signal of telecommunication that amplifies equals this two working value or beyond this two working values scope the time, this relay switch closure, described pressure-regulating device is opened.
16. the cold machine that has pressure-regulating device according to claim 14, it is characterized in that: the described air pressure signal of telecommunication is voltage signal or current signal, described switch is relay switch or transistor switch, described IC table comprises that two end value P1 and the P2 correspondence of scope P1＜P＜P2 of the case internal gas pressure P that regulates according to hope are provided with two working values, this air pressure signal of telecommunication of described IC list processing comprises that amplifying this air pressure signal of telecommunication and this air pressure signal of telecommunication that will amplify and this two working values carries out signal relatively, the IC table stops to handle when this air pressure signal of telecommunication that amplifies is in this two actuating ranges value, described switch keeps disconnecting described pressure-regulating device closure; When this air pressure signal of telecommunication that amplifies equals this two working value or beyond this two working values scope the time, this IC table output control signal is controlled described switch closure, described pressure-regulating device is opened.
17. the cold machine that has pressure-regulating device according to claim 13, it is characterized in that: described pressure measurement control device comprises the air pressure control box, this air pressure control box comprises sealing and has the box body of a predetermined box internal gas pressure, two quiet conducting end that are arranged in this box body and keep at a certain distance away and the moving conductive end between this quiet conducting end, this box body is provided with the pressure-sensitive film, these two one of quiet conducting end are the near quiet conducting end nearer apart from this pressure-sensitive film, another is the far away quiet conducting end far away apart from this pressure-sensitive film, and this moving conductive end is connected with this pressure-sensitive membrane rigidity and can moves between described quiet conducting end with the distortion of this pressure-sensitive film; Distance between this quiet conducting end and this moving conductive end satisfy following condition: when the case internal gas pressure P this air pressure control box outside is within two end value P1 of the case internal gas pressure scope of hope adjusting and P2, when being P1＜P＜P2, this pressure-sensitive film drives this moving conductive end between this nearly quiet conducting end and quiet conducting end far away; When this case internal gas pressure P≤P1, this pressure-sensitive film drives this nearly quiet conducting end of this moving conductive end in contact, and when this case internal gas pressure P 〉=P2, this pressure-sensitive film drives this quiet conducting end far away of this moving conductive end in contact; This two quiet conducting end sealed insulation in parallel is drawn described box body, and as an output of this pressure measurement control device, this moving conductive end sealed insulation is drawn described box body, as another output of this pressure measurement control device; Described two outputs are connected in series with power supply and described calutron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510120632A CN1979067B (en) | 2005-12-09 | 2005-12-09 | Refrigerator with pressure regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510120632A CN1979067B (en) | 2005-12-09 | 2005-12-09 | Refrigerator with pressure regulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1979067A CN1979067A (en) | 2007-06-13 |
| CN1979067B true CN1979067B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510120632A Expired - Fee Related CN1979067B (en) | 2005-12-09 | 2005-12-09 | Refrigerator with pressure regulation device |
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| Country | Link |
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| CN (1) | CN1979067B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411376A (en) * | 2013-08-29 | 2013-11-27 | 合肥华凌股份有限公司 | Refrigeration equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865127B (en) * | 2016-04-11 | 2018-03-30 | 海信容声(广东)冷柜有限公司 | A kind of air-pressure balancing device and refrigerating plant |
| CN109827373A (en) * | 2019-03-20 | 2019-05-31 | 冰山松洋生物科技(大连)有限公司 | Electromagnetic type pressure balancing structure for deepfreeze case shutter door |
| CN113003018A (en) * | 2021-02-07 | 2021-06-22 | 青岛中集特种冷藏设备有限公司 | Refrigerated container with active pressure relief function |
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| US4195491A (en) * | 1978-10-18 | 1980-04-01 | Walter Roncaglione | Dry ice refrigerator |
| CN1038157C (en) * | 1992-09-30 | 1998-04-22 | 中国人民解放军运输工程学院 | Pressure fluid direction control valve and its application in tyre pressure adjusting device |
| CN1215689A (en) * | 1998-09-14 | 1999-05-05 | 王键 | Constant low-temp. structure for vacuum transportation container |
| CN2496807Y (en) * | 2001-08-10 | 2002-06-26 | 高明格 | Air-regulating fresh-preserving turnaround box |
| 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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2005
- 2005-12-09 CN CN200510120632A patent/CN1979067B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4195491A (en) * | 1978-10-18 | 1980-04-01 | Walter Roncaglione | Dry ice refrigerator |
| CN1038157C (en) * | 1992-09-30 | 1998-04-22 | 中国人民解放军运输工程学院 | Pressure fluid direction control valve and its application in tyre pressure adjusting device |
| CN1215689A (en) * | 1998-09-14 | 1999-05-05 | 王键 | Constant low-temp. structure for vacuum transportation container |
| CN2496807Y (en) * | 2001-08-10 | 2002-06-26 | 高明格 | Air-regulating fresh-preserving turnaround box |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103411376A (en) * | 2013-08-29 | 2013-11-27 | 合肥华凌股份有限公司 | Refrigeration equipment |
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| Publication number | Publication date |
|---|---|
| CN1979067A (en) | 2007-06-13 |
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