CN206874932U - Hot gas bypass valve - Google Patents
Hot gas bypass valve Download PDFInfo
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- CN206874932U CN206874932U CN201720384980.9U CN201720384980U CN206874932U CN 206874932 U CN206874932 U CN 206874932U CN 201720384980 U CN201720384980 U CN 201720384980U CN 206874932 U CN206874932 U CN 206874932U
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Abstract
It the utility model is related to refrigeration plant, disclose a kind of hot gas bypass valve, including valve body, upper springs seat, lower springs seat, valve body is provided with high-pressure inlet, lower springs seat is provided with low tension outlet, steel ball valve port is provided between high-pressure inlet and low pressure inlet, steel ball valve seat is provided with valve body, steel ball valve seat is provided with steel ball, it is respectively equipped with diaphragm and covers between upper springs seat and valve body, steel diaphragm and diaphragm lower cover, valve body is provided with thimble piston, thimble is equipped with valve body, thimble one end is pressed against thimble piston, the other end is pressed against steel ball valve seat, regulation spring base is provided with upper springs seat, set screw and upper springs are respectively equipped with upper springs seat, upper springs one end is pressed against set screw, the other end is against regulation spring base；Bottom is provided with lower springs in valve body, and lower springs one end is pressed against lower springs seat against steel ball valve seat, the other end.The utility model can automatically adjust evaporating temperature, it is ensured that will not be frozen inside cooling driers, extend the life-span of compressor.
Description
Technical field
It the utility model is related to refrigeration plant, more particularly to a kind of hot gas bypass valve.
Background technology
At present, drying machine evaporimeter internal pressure can be very low when loading very light for existing freezing type drier, if
Load gently lasts long evaporating pressure can be more and more lower, and the situation less than zero degree occurs in temperature in evaporator, now evaporator
Interior separation water can freeze, and ice knot is more to block compressed air channel, cause air compression system to work.It is existing to be usually
By filling thermal expansion valve come evaporating temperature, but regulated quantity is limited, because air compressor machine load differs greatly, and freezing type
Small model is all controlled with capillary in drying machine, and with expansion valve cost and height, capillary flow rate guarantor is only increased to prevent from freezing
Evaporating temperature zero load is held more than zero degree, so evaporating temperature will higher influence drying effect when load.Also have
Using in the built-in temperature sensor of evaporator, when temperature has arrived zero degree, compressor is stopped, and equitemperature rises and restarted,
So temperature fluctuation range is larger, and effect also can be impacted, and high frequent Start-up life can also greatly shorten.
The content of the invention
The purpose of this utility model is to provide a kind of hot gas bypass valve for automatically adjusting evaporating temperature.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals：
Hot gas bypass valve, including valve body, be arranged on above valve body upper springs seat, be arranged on the bottom bullet of valve body lower end
Spring abutment, valve body are provided with high-pressure inlet, and lower springs seat is provided with low tension outlet, and steel is provided between high-pressure inlet and low pressure inlet
Ball valve mouth, steel ball valve seat is movably equipped with valve body, and steel ball valve seat is provided with the steel ball for being used for blocking steel ball valve port, upper springs seat
It is respectively equipped with lid, steel diaphragm and diaphragm lower cover, valve body top movable on diaphragm from top to bottom between valve body and is provided with thimble piston,
Thimble is equipped with valve body, thimble one end is pressed against steel ball valve seat against thimble piston, the other end, and lower end is movable in upper springs seat
Provided with regulation spring base, set screw and upper springs are respectively equipped with upper springs seat, upper springs one end is against regulation spiral shell
Silk, the other end are against regulation spring base；Lower springs are provided with valve body, lower springs one end is supported against steel ball valve seat, the other end
Lower springs seat.
Preferably, being provided with screw thread in upper springs seat, set screw is connected through a screw thread with upper springs seat.
Weld together preferably, lid outer rim is relative with diaphragm lower cover outer rim on diaphragm, lid inner edge and top on diaphragm
Spring base lower weld together, diaphragm lower cover inner edge together with valve body upper weld, steel diaphragm be welded on diaphragm lid and
Between diaphragm lower cover, a confined space, steel diaphragm and valve body, film are formed between being covered on steel diaphragm and regulation spring base, diaphragm
A gas compartment is formed between piece lower cover.
Preferably, also including high pressure end interface and low pressure end interface, high-pressure side joint weld is on high-pressure inlet, low pressure
End interface is welded on low tension outlet；High pressure end interface is used to connect compressor outlet, and low pressure end interface is used to connect compressor
Entrance is evaporator end.
Preferably, high pressure end interface and low pressure end interface are made of copper tube.
The utility model has significant technique effect as a result of above technical scheme：
The structure can automatically adjust evaporating temperature, and when evaporator pressure is low arrives certain pressure, hot gas bypass valve can be automatic
Open, the high pressure refrigerant of high-pressure side import is drained into low-pressure end, make evaporating temperature stable more than zero degree, evaporating temperature rises
Afterwards, the pressure of low-pressure end rises, and hot gas bypass valve can automatically be turned down, closed, and keeps evaporating temperature stable, it is ensured that inside cooling driers
It will not freeze, regulating effect is preferable, greatly improves the water removal effect of cooling driers, extends the life-span of compressor.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
The toponym that each number designation is referred in accompanying drawing is as follows：Wherein 1-high pressure end interface, 2-steel ball, 3-steel
Ball valve seat, 4-lower springs, 5-lower springs seat, 6-thimble, 7-thimble piston, 8-steel diaphragm, 9-diaphragm lower cover,
Lid, 11-regulation spring base, 12-upper springs, 13-set screw, 14-upper springs seat, 15-valve on 10-diaphragm
Body, 16-valve base channel, 17-low pressure end interface, 18-high-pressure channel, 19-low-pressure channel, 20-gas compartment.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment
Hot gas bypass valve, as shown in figure 1, including valve body 15, high pressure end interface 1, low pressure end interface 17, being arranged on valve body 15
The upper springs seat 14 of top, the lower springs seat 5 for being arranged on the lower end of valve body 15, the side of valve body 15 are provided with high-pressure inlet, bottom
Spring base 5 is provided with low tension outlet, and the inside of valve body 15 is provided with the high-pressure channel 18 communicated with high-pressure inlet, and the bottom of valve body 15 is provided with
The low-pressure channel 19 communicated with low tension outlet, high-pressure channel 18 and the intersection of low-pressure channel 19 are steel ball valve port, high pressure end interface 1
It is made with low pressure end interface 17 of copper tube, high pressure end interface 1 is welded on high-pressure inlet, and low pressure end interface 17 is welded on
On low tension outlet.High pressure end interface 1 is used to connect compressor outlet, and low pressure end interface 17 evaporates for connecting suction port of compressor
Device end.
Steel ball valve seat 3 is movably equipped with valve body 15, there is valve base channel 16, steel between steel ball valve seat 3 and the inwall of valve body 15
Steel ball 2 is fixed with ball valve seat 3, steel ball 2 blocks steel ball valve port, and high-pressure channel 18 is controlled with low-pressure channel 19 by steel ball 2
Connection and closing.
Lid 10 on diaphragm, steel diaphragm 8 and diaphragm lower cover are respectively equipped between upper springs seat 14 and valve body 15 from top to bottom
9, the outer rim of lid 10 is relative with the outer rim of diaphragm lower cover 9 on diaphragm welds together, on diaphragm the inner edge of lid 10 with upper springs seat 14
Portion welds together, and for the inner edge of diaphragm lower cover 9 together with the upper weld of valve body 15, steel diaphragm 8 is welded on lid 10 and film on diaphragm
Between piece lower cover 9, overall heatproof leakproof is reliable.Formation one is closed between lid 10 on steel diaphragm 8 and regulation spring base 11, diaphragm
Space, a gas compartment 20 is formed between steel diaphragm 8 and valve body 15, diaphragm lower cover 9.The top movable of valve body 15 is lived provided with thimble
Plug 7, has thimble piston clearance, thimble piston clearance communicates with the gas compartment 20, valve between thimble piston 7 and the inwall of valve body 15
The through hole of the gas compartment 20 and low-pressure channel 19 is communicated with body 15, is equipped with thimble 6 in through hole, thimble 6 with valve body 15
There is thimble gap, the one end of thimble 6 is pressed against the upper end of steel ball valve seat 3 against the lower end of thimble piston 7, the other end between wall.
Screw thread is provided with upper springs seat 14, set screw 13, top bullet have been connected through a screw thread in upper springs seat 14
Lower end is movably equipped with regulation spring base 11 in spring abutment 14, and upper springs 12, the one end of upper springs 12 are provided with upper springs seat 14
Against set screw 13, the other end against regulation spring base 11.Bottom is provided with lower springs 4, the one end of lower springs 4 in valve body 15
Lower springs seat 5 is pressed against against steel ball valve seat 3, the other end.
Operation principle is as follows：
When initial, steel ball 2 blocks steel ball valve port by the elastic force of lower springs 4, and high-pressure channel 18 and low-pressure channel 19 are disconnected
Open.Low pressure end interface 17 accesses evaporating pressure, and evaporating pressure enters low-pressure channel 19 and enters valve base channel 16, then successively passes through
Thimble gap, thimble piston clearance enter the gas compartment 20 of the lower section of steel diaphragm 8, and the pressure that the lower surface of steel diaphragm 8 is subject to is big
In the elastic force of upper springs 12, steel diaphragm 8 is heaved upwards.If the evaporating pressure continuous decrease that low pressure end interface 17 accesses, steel membrane
The pressure that the lower surface of piece 8 is subject to decreases up to the elastic force less than lower springs 4, and the elastic force of lower springs 4 will promote regulation bullet
Spring abutment 11 moves down, so that steel diaphragm 8 rouses downwards, and then promotes thimble piston 7, thimble piston 7 promotes thimble 6 again, top
The elastic force that steel ball valve seat 3 overcomes lower springs 4 is pushed away under pin 6 so that steel ball 2 is moved down, and steel ball valve port is opened, and now high pressure is cold
Matchmaker's priority high pressure end interface 1, high-pressure channel 18, steel ball valve port, valve base channel 16 enter low-pressure channel 19, in low-pressure channel 19
Pressure rises to the gas compartment 20 of the lower section of steel diaphragm 8 again so that the lower surface stress increase of steel diaphragm 8, overcomes upper springs 12
Elastic force, steel diaphragm 8 heaves upwards, and thimble piston 7 moves up, and drives thimble 6 to move up, elastic force of the steel ball valve seat 3 in lower springs 4
Moved up under effect, steel ball 2 blocks steel ball valve port again.
Can be by adjusting the height of set screw 13, so as to adjust the elastic force of upper springs 12 to determine the height of evaporating temperature
Degree, i.e., evaporating temperature can freely be set.
Valve body 15 is process using brass.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all according to present utility model application the scope of the claims institute
The equivalent changes and modifications of work, it should all belong to the covering scope of the utility model patent.
Claims (5)
1. hot gas bypass valve, including valve body（15）, it is characterised in that：Also include being arranged on valve body（15）The upper springs seat of top
（14）, be arranged on valve body（15）The lower springs seat of lower end（5）, valve body（15）It is provided with high-pressure inlet, lower springs seat（5）On
Provided with low tension outlet, steel ball valve port, valve body are provided between high-pressure inlet and low pressure inlet（15）Inside it is movably equipped with steel ball valve seat
（3）, steel ball valve seat（3）It is provided with the steel ball for being used for blocking steel ball valve port（2）, upper springs seat（14）And valve body（15）Between from
It is respectively equipped with diaphragm and covers under above（10）, steel diaphragm（8）With diaphragm lower cover（9）, valve body（15）Top movable is lived provided with thimble
Plug（7）, valve body（15）On be equipped with thimble（6）, thimble（6）One end is pressed against thimble piston（7）, the other end be pressed against steel ball valve seat
（3）, upper springs seat（14）Interior lower end is movably equipped with regulation spring base（11）, upper springs seat（14）Inside it is respectively equipped with regulation spiral shell
Silk（13）And upper springs（12）, upper springs（12）One end is pressed against set screw（13）, the other end against regulation spring base
（11）；Valve body（15）It is interior to be provided with lower springs（4）, lower springs（4）One end is pressed against steel ball valve seat（3）, the other end be pressed against bottom
Spring base（5）.
2. hot gas bypass valve according to claim 1, it is characterised in that：Upper springs seat（14）It is interior to be provided with screw thread, regulation
Screw（13）With upper springs seat（14）It is connected through a screw thread.
3. hot gas bypass valve according to claim 1, it is characterised in that：Covered on diaphragm（10）Outer rim and diaphragm lower cover（9）
Outer rim is relative to be welded together, and is covered on diaphragm（10）Inner edge and upper springs seat（14）Lower weld together, diaphragm lower cover（9）
Inner edge and valve body（15）Upper weld together, steel diaphragm（8）It is welded on diaphragm and covers（10）With diaphragm lower cover（9）Between, steel
Diaphragm（8）With adjusting spring base（11）, cover on diaphragm（110）Between formed a confined space, steel diaphragm（8）With valve body
（15）, diaphragm lower cover（9）Between formed a gas compartment（20）.
4. hot gas bypass valve according to claim 1, it is characterised in that：Also include high pressure end interface（1）Terminated with low pressure
Mouthful（17）, high pressure end interface（1）It is welded on high-pressure inlet, low pressure end interface（17）It is welded on low tension outlet；High pressure terminates
Mouthful（1）For connecting compressor outlet, low pressure end interface（17）For connecting suction port of compressor i.e. evaporator end.
5. hot gas bypass valve according to claim 4, it is characterised in that：High pressure end interface（1）With low pressure end interface（17）
It is made of copper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720384980.9U CN206874932U (en) | 2017-04-13 | 2017-04-13 | Hot gas bypass valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720384980.9U CN206874932U (en) | 2017-04-13 | 2017-04-13 | Hot gas bypass valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874932U true CN206874932U (en) | 2018-01-12 |
Family
ID=61343085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720384980.9U Active CN206874932U (en) | 2017-04-13 | 2017-04-13 | Hot gas bypass valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594626A (en) * | 2019-02-20 | 2020-08-28 | 浙江三花制冷集团有限公司 | Temperature sensing driving device and flow regulating valve using same |
-
2017
- 2017-04-13 CN CN201720384980.9U patent/CN206874932U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594626A (en) * | 2019-02-20 | 2020-08-28 | 浙江三花制冷集团有限公司 | Temperature sensing driving device and flow regulating valve using same |
| CN111594626B (en) * | 2019-02-20 | 2023-05-16 | 浙江三花商用制冷有限公司 | Temperature-sensing driving device and flow regulating valve using same |
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