CN101255931A - Inner temperature-sensing thermostatic expansion valve bellows - Google Patents
Inner temperature-sensing thermostatic expansion valve bellows Download PDFInfo
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- CN101255931A CN101255931A CNA2007100802873A CN200710080287A CN101255931A CN 101255931 A CN101255931 A CN 101255931A CN A2007100802873 A CNA2007100802873 A CN A2007100802873A CN 200710080287 A CN200710080287 A CN 200710080287A CN 101255931 A CN101255931 A CN 101255931A
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- expansion valve
- top cover
- bellows
- thermostatic expansion
- sorbent
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Abstract
A temperature-sensing thermostatic expansion valve membrane box is provided, which comprises a top cover 1, a charge hole 1-1 on the top cover, a sealing steel ball 2, a bottom cover 3, a diaphragm 4, a position limiter 5 and membrane box cavity 11. Wherein, a sorbent 7 is arranged in the membrane box cavity 11 and positioned by filter screen 6, which can eliminate the conmen fluctuation or surge in adjustment process of temperature-sensing thermostatic expansion valve, improve the cooling capacity and energy efficiency ration of refrigeration system.
Description
Technical field
The present invention relates to a kind of inner temperature-sensing thermostatic expansion valve bellows, belong to the heating power expansion valve technical field that is used for throttling in the vapour compression refrigeration system, temperature-sensitive automobile air-conditioning heating power expansion valve and interior temperature-sensitive two-way heating power expansion valve in being specially adapted to.
Technical background
In known the temperature-sensitive automobile air-conditioning heating power expansion valve and in the temperature-sensitive two-way heating power expansion valve, ubiquitous defective is that fluctuation or vibration are bigger in the adjustment process, causes refrigerating capacity and Energy Efficiency Ratio to descend.Trace it to its cause is because the bellows of inner temperature-sensing thermostatic expansion valve places the valve body upper end, directly experience the gaseous refrigerant temperature of the return gas channel of flowing through by metal heat transfer by conduction and semiconvection heat transfer, the variation of the micro-refrigerant liquid of carrying secretly in the trace variation of gaseous refrigerant temperature or the gaseous refrigerant all will cause the rapid evaporation or the condensation of temperature sensing agent in the bellows, the quick rising or the reduction of bellows internal pressure, the liquid refrigeration agent flux of the valve port channel cross-section of heating power expansion valve and the valve port passage of flowing through increases fast or reduces, and causes fluctuation or vibration in the adjustment process.
Summary of the invention
The purpose of this invention is to provide a kind of reasonable in design, simple in structure, technology is practical, can effectively eliminate the inner temperature-sensing thermostatic expansion valve bellows of inner temperature-sensing thermostatic expansion valve ubiquity fluctuation or vibration in adjustment process.
Inner temperature-sensing thermostatic expansion valve bellows of the present invention, comprise top cover, be positioned at the filled hole of top cover, place the steel ball that seals of top cover upper end, place the bottom of top cover lower end, place the diaphragm between top cover and the bottom, place limiting stopper between diaphragm and the bottom and the bellows chamber between top cover and the diaphragm, it is characterized in that the bellows chamber is built-in with sorbent, sorbent is located by filter screen in the bellows chamber.
Described sorbent can be filtered net and be positioned top, bellows chamber, and filter screen and top cover can weld fixing.
The also available filter screen parcel of described sorbent, its lower end is provided with back-up ring, and sorbent is positioned top, bellows chamber, and back-up ring and top cover can weld fixing.
The also available gland of described filter screen and top cover is fixed.
Described back-up ring and top cover also can be fixed with pressure.
Described sorbent also can be filtered net and be positioned the diaphragm upper end, and filter screen and diaphragm welding are fixing.
Inner temperature-sensing thermostatic expansion valve bellows of the present invention; owing in the bellows chamber, be provided with sorbent; when inner temperature-sensing thermostatic expansion valve bellows impression is flowed through the gaseous refrigerant temperature of return gas channel when being lower than bellows and filling the saturation temperature of temperature sensing agent; be condensate in temperature sensing agent liquid in the bellows chamber by the adsorbents adsorb in the bellows chamber; pressure in the bellows chamber decreases; when inner temperature-sensing thermostatic expansion valve bellows is experienced the gaseous refrigerant temperature rising of the return gas channel of flowing through; the temperature sensing agent liquid of absorption will be evaporated very slowly in the sorbent; thereby the rate of pressure rise in the bellows chamber is become slowly, and the liquid refrigeration agent flux of the heating power expansion valve valve port channel cross-section and the valve port passage of flowing through also slowly increases.Because sorbent is filtered net and is positioned the appointed part bellows chamber in, therefore, sorbent can not enter the narrow slit of bellows and top cover circumferential edges, and the distortion up and down of diaphragm in adjustment process of assurance inner temperature-sensing thermostatic expansion valve is unaffected.
Description of drawings
Fig. 1 is the overall structure figure that adopts the interior temperature-sensitive automobile air-conditioning heating power expansion valve of known inner temperature-sensing thermostatic expansion valve bellows
Fig. 2 is the overall structure figure that adopts the interior temperature-sensitive two-way heating power expansion valve of known inner temperature-sensing thermostatic expansion valve bellows
Fig. 3 is the structural drawing of known inner temperature-sensing thermostatic expansion valve bellows
Fig. 4,5,6,7, the 8th, five embodiments' of inner temperature-sensing thermostatic expansion valve bellows of the present invention structural drawing
Fig. 9 is the pressure history figure of known inner temperature-sensing thermostatic expansion valve bellows
Figure 10 is the pressure history figure of inner temperature-sensing thermostatic expansion valve bellows of the present invention
Figure 11 is the overall structure figure that adopts the interior temperature-sensitive automobile air-conditioning heating power expansion valve of inner temperature-sensing thermostatic expansion valve bellows of the present invention
Figure 12 is the overall structure figure that adopts the interior temperature-sensitive two-way heating power expansion valve of inner temperature-sensing thermostatic expansion valve bellows of the present invention
Shown in the figure:
1-top cover, 1-1-fill the hole, 2-seals steel ball, 3-bottom, 4-diaphragm, 5-limiting stopper, 6-filter screen, 7-sorbent, 8-back-up ring, 9-gland, 10-valve body, 10-1-return gas channel, 10-2-valve port passage, 11-bellows chamber
Embodiment
First embodiment of the invention is as shown in Figure 4: filter screen 6 is placed top cover 1, and with condenser discharge welder or other welding equipment that filter screen 6 is fixing with top cover 1 welding.Limiting stopper 5 is placed between diaphragm 4 and the bottom 3, will be integrally welded at circumferencial direction with argon arc welding welding machine or other welding equipment with top cover 1, diaphragm 4 and the bottom 3 of filter screen 6, filled hole 1-1 by top cover 1 places sorbent 7 between filter screen 6 and the top cover 1, sorbent 7 is positioned 11 tops, bellows chamber, air in the bellows chamber 11 is taken out to the greatest extent by filling hole 1-1 with special-purpose filling device, charged into temperature sensing agent to required value and with sealing steel ball 2 solder ups.
Second embodiment of the present invention be as shown in Figure 5:, place in the bellows chamber 11 sorbent 7 parcels with filter screen 6, its lower end back-up ring 8 is fixing with top cover 1 welding, and sorbent 7 is positioned 11 tops, bellows chamber.
The 3rd embodiment of the present invention be as shown in Figure 6: with gland 9 that filter screen 6 is fixing with top cover 1, by filling hole 1-1 sorbent 7 is placed between filter screen 6 and the top cover 1.Sorbent 7 is positioned 11 tops, bellows chamber.
The 4th embodiment of the present invention be as shown in Figure 7:, place in the bellows chamber 11 sorbent 7 parcels with filter screen 6, back-up ring 8 is fixed with pressure with top cover 1, and sorbent 7 is positioned 11 tops, bellows chamber.
The 5th embodiment of the present invention be as shown in Figure 8: sorbent 7 placed in the filter screen 6, and with condenser discharge welder or other welding equipment that diaphragm 4 is fixing with filter screen 6 welding, sorbent 7 is positioned diaphragm 4 upper ends.
Be equipped with the inner temperature-sensing thermostatic expansion valve of inner temperature-sensing thermostatic expansion valve bellows of the present invention, its working procedure is as follows: the bellows that places valve body 10 upper ends is by the flow through gaseous refrigerant temperature of valve body top return gas channel 10-1 of metal heat transfer and heat transfer by convection impression, make the channel cross-section of valve body 10 bottom valve port path 10s-2 and the liquid refrigeration agent flux of the valve port path 10-2 of flowing through remain on a certain value, when the temperature of the return gas channel 10-1 gaseous refrigerant of flowing through reduces, gaseous state temperature sensing agent part condensation in the bellows chamber 11 becomes liquid, and is placed in sorbent 7 absorption in the bellows chamber 11.Pressure in the bellows chamber 11 decreases, controlling mechanism by valve body 10 is regulated, the liquid refrigeration agent flux of the channel cross-section of valve port path 10-2 and the valve port path 10-2 of flowing through reduces thereupon, when the temperature of the return gas channel 10-1 gaseous refrigerant of flowing through raises, the liquid temperature sensing agent that is adsorbed agent 7 absorption in the bellows chamber 11 evaporates slowly and becomes the gaseous state temperature sensing agent, pressure in the bellows chamber 11 is slowly raise, controlling mechanism by valve body 10 is regulated, and the liquid refrigerant flow of the channel cross-section of valve port path 10-2 and the valve port path 10-2 of flowing through slowly increases.Can effectively eliminate fluctuation or the vibration of inner temperature-sensing thermostatic expansion valve in adjustment process, improve the refrigerating capacity and the Energy Efficiency Ratio of refrigeration system.
Figure 9 shows that the pressure history of known inner temperature-sensing thermostatic expansion valve bellows, its pressure rises very fast.
Figure 10 shows that the pressure history of inner temperature-sensing thermostatic expansion valve bellows of the present invention, its pressure rises very slow.
Inner temperature-sensing thermostatic expansion valve bellows of the present invention, sorbent 7 is filtered net 6 and is positioned appointed part in the bellows chamber 11, can prevent effectively that sorbent 7 from entering top cover 1 and the narrow slit of diaphragm 4 at circumferencial direction, diaphragm 4 is out of shape downwards when guaranteeing diaphragm 4 along with the increased pressure in the bellows chamber 11, or diaphragm 4 upwards is out of shape unaffectedly when reducing along with the pressure in the bellows chamber 11, guarantees that inner temperature-sensing thermostatic expansion valve can normal regulating.
Claims (6)
1. inner temperature-sensing thermostatic expansion valve bellows, comprise top cover 1, be positioned at top cover 1 filled hole 1-1, place top cover 1 upper end seal steel ball 2, place the bottom 3 of top cover 1 lower end, place the diaphragm 4 between top cover 1 and the bottom 3, place limiting stopper 5 between diaphragm 4 and the bottom 3 and the bellows chamber 11 between top cover 1 and the diaphragm 4, it is characterized in that bellows chamber 11 is built-in with sorbent 7, sorbent 7 is located by filter screen 6 in bellows chamber 11.
2. by the described inner temperature-sensing thermostatic expansion valve bellows of claim 1, its feature is that also described sorbent 7 can be filtered net 6 and be positioned 11 tops, bellows chamber, and filter screen 6 can weld fixing with top cover 1.
3. by the described inner temperature-sensing thermostatic expansion valve bellows of claim 1, its feature also is also available filter screen 6 parcels of described sorbent 7, and its lower end is provided with back-up ring 8, and sorbent 7 is positioned 11 tops, bellows chamber, and back-up ring 8 can weld fixing with top cover 1.
4. by claim 1 and 2 described inner temperature-sensing thermostatic expansion valve bellows, its feature is that still the available gland of described filter screen 6 and top cover 19 is fixing.
5. by claim 1 and 3 described inner temperature-sensing thermostatic expansion valve bellows, its feature is that also described back-up ring 8 also can be fixed with pressure with top cover 1.
6. by the described inner temperature-sensing thermostatic expansion valve bellows of claim 1, its feature is that also described sorbent 7 also can be filtered net 6 and be positioned diaphragm 4 upper ends, and filter screen 6 is fixing with diaphragm 4 welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100802873A CN101255931A (en) | 2007-02-26 | 2007-02-26 | Inner temperature-sensing thermostatic expansion valve bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100802873A CN101255931A (en) | 2007-02-26 | 2007-02-26 | Inner temperature-sensing thermostatic expansion valve bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101255931A true CN101255931A (en) | 2008-09-03 |
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ID=39890945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100802873A Pending CN101255931A (en) | 2007-02-26 | 2007-02-26 | Inner temperature-sensing thermostatic expansion valve bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101255931A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440501A (en) * | 2020-11-05 | 2022-05-06 | 株式会社鹭宫制作所 | Temperature type valve device, cooling device, and refrigeration cycle system |
| WO2022235632A1 (en) * | 2021-05-05 | 2022-11-10 | Parker-Hannifin Corporation | Bulbless thermal expansion valve |
-
2007
- 2007-02-26 CN CNA2007100802873A patent/CN101255931A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440501A (en) * | 2020-11-05 | 2022-05-06 | 株式会社鹭宫制作所 | Temperature type valve device, cooling device, and refrigeration cycle system |
| CN114440501B (en) * | 2020-11-05 | 2024-04-30 | 株式会社鹭宫制作所 | Temperature valve device, cooling device, and refrigeration cycle system |
| WO2022235632A1 (en) * | 2021-05-05 | 2022-11-10 | Parker-Hannifin Corporation | Bulbless thermal expansion valve |
| US11808498B2 (en) | 2021-05-05 | 2023-11-07 | Parker-Hannifin Corporation | Bulbless thermal expansion valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |