CN202631057U - Vapor-liquid sensor - Google Patents
Vapor-liquid sensor Download PDFInfo
- Publication number
- CN202631057U CN202631057U CN 201220252996 CN201220252996U CN202631057U CN 202631057 U CN202631057 U CN 202631057U CN 201220252996 CN201220252996 CN 201220252996 CN 201220252996 U CN201220252996 U CN 201220252996U CN 202631057 U CN202631057 U CN 202631057U
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- guide rod
- hollow guide
- valve body
- ball float
- container cavity
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Abstract
The utility model discloses a sensor, and provides a vapor-liquid sensor which is high in detection sensitivity and steady and reliable in performance. The vapor-liquid sensor provided by the utility model solves the technical problems of low detection sensitivity and failure of the vapor-liquid sensor caused by the factor that a floating ball is prone to adhering to a guide rod in the prior art. The vapor-liquid sensor comprises a valve body and a hollow guide rod, wherein one end of the hollow guide rod is packaged in an accommodating cavity of the valve body; a magnet switch is arranged in the corresponding hollow guide rod in the valve body, and the hollow guide rod corresponding to the magnet switch is externally connected with a floating ball group in a sliding manner; an input port and an output port are respectively arranged in the accommodating cavity corresponding to the two ends of the floating ball group; the floating ball group comprises a PP (polypropylene) floating sleeve, a ring-shaped magnet and a sealing cover which are orderly sleeved on the hollow guide rod; and the ring-shaped magnet is sandwiched between the floating sleeve and the sealing cover, and an auxiliary spring is sleeved on the hollow guide rod between the floating ball group and the valve body.
Description
Technical field
The utility model relates to a kind of sensor, relates in particular to a kind of stable performance that is used on the refrigerant-recovery machine, highly sensitive vapour-liquid sensor.
Background technology
Often there is not the vapour-liquid sensor on the early stage refrigerant-recovery machine; Therefore it is more to work as recovery machine input port liquid refrigerant; And the input port of transfer valve is not adjusted to enough little the time, the severe phenomenon of inner copper pipe pipeline shake will occur, just liquid hit phenomenon.In case generation liquid hit phenomenon; Need in time turn the transfer valve aperture down; Otherwise can cause phenomenons such as deadlock, burn-down of electric motor, the breakage of compressor piston ring, overload protective device burn, therefore need operator concern table group situation and in time adjusting transfer valve at any time in operating process.In order to improve the automaticity of refrigerant-recovery machine; The vapour-liquid sensor begins on the refrigerant-recovery machine, to use; Promptly can judge recovery machine input port refrigerant condition output relevant information to associated components and next step action of control execution automatically, to realize the intellectuality control of refrigerant-recovery machine through the vapour-liquid sensor.Gas-liquid sensor on the existing refrigerant-recovery machine generally is the guide rod of on valve body, pegging graft, and in the guide rod corresponding to the valve body container cavity, magnetic switch is housed, and one of suit can be along the metal ball float of guide rod easy on and off slip outside guide rod; On the metal ball float magnet is housed; When liquid refrigerant got into the valve body container cavity, the metal ball float drove magnet and makes progress and cutting magnetic line, magnetic switch output information; Because metal ball float proportion is bigger; Therefore reaction velocity is slow, causes detection sensitivity low, simultaneously because the metal ball float freely is enclosed within on the guide rod; When the vapour-liquid sensor does not use or cold-producing medium when impurity occurring for a long time, the metal ball float very easily is bonded on guide rod or the valve body and causes the vapour-liquid sensor failure.
Chinese patent discloses a kind of liquid level sensor (CN2779360Y), comprises a body of rod, in the body of rod, is provided with magnetic reed switch; On the body of rod, be arranged with floating stopping; The buoyancy aid upper end is a sleeve pipe, and buoyancy aid on the body of rod, can move up and down buoyancy aid through this casing pipe sleeve along the body of rod within the specific limits; Be used for contacting, go up and down with liquid level with liquid level.This device separates with float through magnet; The body of rod separates with float; The body of rod is not floated on the liquid level, though can avoid making float attached to causing liquid level sensor to be failure to actuate on the body of rod, because float extends to outside the body of rod because of the dirt of liquid; Therefore float is poor in the guidance quality when the body of rod slides up and down, and float is very easily stuck and cause sensor failure.
Summary of the invention
It is high that the utility model has mainly provided a kind of detection sensitivity, vapour-liquid sensor stable and reliable for performance, and it is low to have solved the detection sensitivity that exists in the prior art, and ball float is prone to be bonded on the guide rod and causes the technical matters of vapour-liquid sensor failure etc.
The utility model also provides a kind of compact conformation simultaneously; The vapour-liquid sensor of the little and good airproof performance of volume; The passage that has solved the vapour-liquid sensor that exists in the prior art can only use copper pipe external, and not only volume is big, and the technical matters of leakage phenomenon etc. very easily occurs.
The above-mentioned technical matters of the utility model mainly is able to solve through following technical proposals: a kind of vapour-liquid sensor; Comprise that a valve body and an end are encapsulated in the hollow guide rod in the valve body container cavity; In corresponding to the hollow guide rod in the valve body, be provided with magnetic switch; Outside the hollow guide rod corresponding with magnetic switch, slidely connect the ball float group, and in the corresponding container cavity in ball float group two ends, be respectively equipped with input port and delivery outlet, said ball float group comprises empty boasting, ring-shaped magnet and the capping of the PP material that is sleeved on successively on the hollow guide rod; Ring-shaped magnet is folded between empty boasting and capping, and on the hollow guide rod between ball float group and the valve body, is set with power assistant spring.Empty boasting can adopt rubber, rubber and plastic or other plastic product to process, and empty boasting adopts the PP material to process, and the cost of material is low, and not only machine-shaping is simple, and density is little, and is in light weight, and the reaction velocity of perception liquid refrigerant is fast, and detection sensitivity is high; Through capping ring-shaped magnet is inlaid on the empty boasting, simple in structure, easy for installation; Through between ball float group and valve body, power assistant spring being set, can avoid ball float group and hollow guide rod or valve body because of sticking together for a long time, improved the dependability of vapour-liquid sensor.
As preferably, suit is fixed with rod coupling on said hollow guide rod, and hollow guide rod spins through rod coupling and is fixed on the valve body, and between valve body and rod coupling, is folded with the O RunddichtringO.Hollow guide rod spins through rod coupling and is fixed on the valve body, and is simple in structure, easy for installation, and the O RunddichtringO has been guaranteed the sealing of container cavity, prevents freezing medium leakage.
Can capping be located at the outboard end of rod coupling, as more preferably, be provided with counterbore at the medial extremity of said rod coupling, power assistant spring be located in the counterbore and the outboard end apical grafting of power assistant spring on the outer face of capping.Counterbore is used for fixing power assistant spring, and is limited in the reasonable range through the decrement with power assistant spring, can guarantee that power assistant spring can not cause permanent strain because of being in for a long time under the elevated pressures condition.
As preferably, said capping is inlaid in the end of empty boasting.Capping is inlaid in the end of empty boasting, and ring-shaped magnet is folded in the annular groove that capping and empty boasting constituted, and space structure is compact, and ring-shaped magnet is easy for installation firmly.
As preferably, said hollow guide rod is a metal tube, corresponding to the hollow guide rod end portion encloses in the container cavity guide rod plug is being arranged, the lead on the magnetic switch from the other end of hollow guide rod to extension.Medial extremity encapsulation guide rod plug through at metal tube constitutes the space of storing magnetic switch, and is simple in structure, easy for installation.
As preferably, in said container cavity, be provided with an input port and two delivery outlets, the input port is positioned on the corresponding container cavity inwall of ball float group outboard end, and two delivery outlets lay respectively on the corresponding container cavity inwall in ball float group two ends.Cold-producing medium flows into container cavity through an input port of bottom, and the delivery outlet that passes through bottom and top more respectively flows out, but the pressure at balance ball float group two ends, the sensitivity that improves sensor.
As preferably, on said valve body, be provided with input channel and the output channel of conducting outside valve body, the input port links to each other with input channel, and delivery outlet links to each other with output channel.Input channel and output channel integral type are opened in valve body, need not external copper pipe, not only can reduce sensor bulk, make its structure compact and reasonable more, and can effectively avoid the generation of leakage phenomenon, improve the reliability that sensor uses.
Therefore, the vapour-liquid sensor of the utility model has following advantage: empty boasting adopts the less PP material of density to process, and is in light weight, and detection sensitivity is high, and cost is low; Through between ball float group and valve body, power assistant spring being set, can avoid ball float group and hollow guide rod or valve body because of sticking together for a long time, improved the dependability of vapour-liquid sensor; The IO channel integral type is located in the valve body, need not external copper pipe, has reduced sensor bulk, makes its structure compact and reasonable more, and good airproof performance, has effectively avoided the generation of leakage phenomenon.
Description of drawings:
Fig. 1 is the structural representation of the vapour-liquid sensor of the utility model;
Fig. 2 is input channel and the axial cut-open view of output channel in the utility model.
Embodiment:
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment:
As shown in Figure 1, a kind of vapour-liquid sensor of the utility model comprises the valve body 1 of rectangular parallelepiped; Extending internally at an end of valve body 1 forms the container cavity 11 of a cylinder, through the screw thread rod coupling 6 that spins, and an O RunddichtringO 7 is housed at the opening part of container cavity 11 between the opposition end face of valve body 1 and rod coupling 6; Interspersed hollow guide rod 2 at the middle part of rod coupling 6, the outer ring surface seal weld of hollow guide rod 2 is connected on the rod coupling 6, and the medial extremity of hollow guide rod 2 extends in the container cavity 11; Hollow guide rod 2 is processed by copper pipe, and at the medial extremity of the copper pipe guide rod plug 62 that spins, at magnetic switch 3 of cavity internal fixation of hollow guide rod 2; Lead on the magnetic switch 3 stretches out from the outboard end opening of copper pipe; Slip cap is equipped with a ball float group outside the hollow guide rod 2 corresponding with magnetic switch 3, in the corresponding container cavity 11 in ball float group two ends, is respectively equipped with input port 11 and delivery outlet 12, and ball float group wherein comprises the empty boasting 41 that is sleeved on capping 42, ring-shaped magnet 43 and PP material on hollow guide rod 2 medial extremitys from inside to outside successively; Capping 42 is screwed on empty boasting 41 end faces; And the outer face of capping 42 and empty boasting 41 end face flush make ring-shaped magnet 43 be clamped in the annular groove that capping 42 and empty boasting 41 constituted power assistant spring 5 of suit on the hollow guide rod 2 between capping 42 and the rod coupling 6; Have a counterbore 61 at rod coupling 6 medial extremitys; Power assistant spring 5 is positioned at counterbore 61, and is as shown in Figure 2, in the container cavity 11 corresponding to ball float group outboard end, has an input port 11 and a delivery outlet 12; In container cavity 11, also have a delivery outlet 12 corresponding to ball float group medial extremity; Having the input channel 13 and output channel 14 of conducting outside valve body 1 on the valve body 1, input port 11 links to each other with input channel 13, and delivery outlet 12 links to each other with output channel 14.
During use; In the 11 entering container cavities 11 of input port, if cold-producing medium is liquid, the ball float group promptly can rise under buoyancy function cold-producing medium by input channel 13; The magnetic field that the inner magnet of ball float group produces produces magneticaction to hollow guide rod 2 inner magnetic switchs 3; Magnetic switch 3 can be switched on or switched off at the induction lower contact that adds magnetic field force, and gives sensor outer host computer control line signal through the lead on the magnetic switch 3, and controls the break-make of each pipe passage by the host computer control circuit.
Specific embodiment described herein only is that the design to the utility model illustrates.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (7)
1. vapour-liquid sensor; Comprise that a valve body (1) and an end are encapsulated in the hollow guide rod (2) in valve body (1) container cavity (11); In corresponding to the hollow guide rod (2) in the valve body (1), be provided with magnetic switch (3); Outside the hollow guide rod (2) corresponding, slidely connect the ball float group with magnetic switch (3); And in the corresponding container cavity (11) in ball float group two ends, be respectively equipped with input port (11) and delivery outlet (12); It is characterized in that: said ball float group comprises empty boasting (41), ring-shaped magnet (43) and the capping (42) that is sleeved on the PP material on the hollow guide rod (2) successively, and ring-shaped magnet (43) is folded between empty boasting (41) and capping (42), and on the hollow guide rod (2) between ball float group and the valve body (1), is set with power assistant spring (5).
2. vapour-liquid sensor according to claim 1; It is characterized in that: go up suit at said hollow guide rod (2) and be fixed with rod coupling (6); Hollow guide rod (2) spins through rod coupling (6) and is fixed on the valve body (1), and between valve body (1) and rod coupling (6), is folded with O RunddichtringO (7).
3. vapour-liquid sensor according to claim 2; It is characterized in that: the medial extremity at said rod coupling (6) is provided with counterbore (61), power assistant spring (5) be located in the counterbore and the outboard end apical grafting of power assistant spring (5) on the outer face of capping (42).
4. according to claim 1 or 2 or 3 described vapour-liquid sensors, it is characterized in that: said capping (42) is inlaid in the end of empty boasting (41).
5. according to claim 1 or 2 or 3 described vapour-liquid sensors; It is characterized in that: said hollow guide rod (2) is a metal tube; Corresponding to hollow guide rod (2) end portion encloses in the container cavity (11) guide rod plug (62) is being arranged, the lead on the magnetic switch (3) stretches out from the other end of hollow guide rod (2).
6. according to claim 1 or 2 or 3 described vapour-liquid sensors; It is characterized in that: in said container cavity (11), be provided with an input port (11) and two delivery outlets (12); Input port (11) is positioned on corresponding container cavity (11) inwall of ball float group outboard end, and two delivery outlets (12) lay respectively on corresponding container cavity (11) inwall in ball float group two ends.
7. according to claim 1 or 2 or 3 described vapour-liquid sensors; It is characterized in that: be provided with input channel (13) and the output channel (14) of conducting outside valve body (1) on the said valve body (1); Input port (11) links to each other with input channel (13), and delivery outlet (12) links to each other with output channel (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252996 CN202631057U (en) | 2012-05-31 | 2012-05-31 | Vapor-liquid sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220252996 CN202631057U (en) | 2012-05-31 | 2012-05-31 | Vapor-liquid sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631057U true CN202631057U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220252996 Expired - Lifetime CN202631057U (en) | 2012-05-31 | 2012-05-31 | Vapor-liquid sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020256A (en) * | 2014-06-12 | 2014-09-03 | 邯郸派瑞节能控制技术有限公司 | Pipeline gas sensor access base |
| CN108171819A (en) * | 2017-12-22 | 2018-06-15 | 成都市卓新实业有限公司 | A kind of method of recording equipment usage time |
-
2012
- 2012-05-31 CN CN 201220252996 patent/CN202631057U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104020256A (en) * | 2014-06-12 | 2014-09-03 | 邯郸派瑞节能控制技术有限公司 | Pipeline gas sensor access base |
| CN108171819A (en) * | 2017-12-22 | 2018-06-15 | 成都市卓新实业有限公司 | A kind of method of recording equipment usage time |
| CN108171819B (en) * | 2017-12-22 | 2020-09-11 | 成都市卓新实业有限公司 | Method for recording service time of equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |