CN201513625U - Thermostatic expansion valve structure having two valve ports - Google Patents
Thermostatic expansion valve structure having two valve ports Download PDFInfo
- Publication number
- CN201513625U CN201513625U CN2009202107313U CN200920210731U CN201513625U CN 201513625 U CN201513625 U CN 201513625U CN 2009202107313 U CN2009202107313 U CN 2009202107313U CN 200920210731 U CN200920210731 U CN 200920210731U CN 201513625 U CN201513625 U CN 201513625U
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- CN
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- Prior art keywords
- valve
- needle seat
- valve port
- port
- interface
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- Expired - Lifetime
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- Temperature-Responsive Valves (AREA)
Abstract
The utility model discloses a thermostatic expansion valve structure having two valve ports, which comprises a valve body and a power head part which is arranged on the upper end of the valve body, wherein the power head part comprises a temperature sensing bag, a capillary tube, an upper membrane cover, a diaphragm, a lower membrane cover and a transmission block, the valve body is provided with a first connection port and a second connection port, a first valve port which is communicated with the first and the second connection ports is arranged inside the valve body, a hollow valve needle seat which can be moved to be adjusted from top to bottom is arranged at the first valve port, the bottom end of the valve needle seat extends outwards to form a conical surface for sealing the first valve port, the side wall of the valve needle seat is provided with a through hole which is communicated with the first interface, a second valve port is formed on the hollow bottom part of the valve needle seat, a valve needle which is used for sealing the second valve port is arranged below the valve needle seat, and the valve needle is supported by an adjusting spring and a transmission rod. The expansion valve has two valve ports, so the thermostatic expansion valve structure has the advantages that: the reaction speed for controlling the variation of the refrigerant liquid supply quantity is fast; the variation of the evaporation temperature is small; and the energy efficiency ratio is high.
Description
Technical field
The utility model belongs to refrigeration air-conditioner throttling arrangement technical field, particularly relates to a kind of thermal expansion valve arrangement with bivalve mouth.
Background technique
At present, common valve port that is used for throttling of heating power expansion valve common design on the market, the restriction effect of this expansion valve is undesirable: 1, when the air-conditioning unit freezes, just started shooting under the bigger situation of load, had the fast inadequately problem of expansion valve liquid supply rate feed speed; 2, reach under the more stable state at unit, have the bigger problem of expansion valve liquid supply rate feed rate fluctuation.
The model utility content
The purpose of this utility model is to solve the problems of the prior art, and a kind of thermal expansion valve arrangement of good throttle effect is provided.
The technical solution of the utility model is: a kind of thermal expansion valve arrangement with bivalve mouth, comprise valve body and the power head part that is positioned at its upper end, described power head part comprises bulb, capillary tube, last membrane cover, diaphragm, following membrane cover and drive block, offer first interface and second interface on the described valve body, be provided with first valve port that is communicated with first interface and second interface in the described valve body, wherein, the described first valve port place is provided with a needle seat that can move up and down the hollow of adjusting, the bottom of this needle seat extends outward the conical surface that is used for described first valve port of shutoff, the sidewall of described needle seat is provided with the through hole that communicates with described first interface, second valve port is formed on the bottom of described needle seat hollow, described needle seat below is provided with the needle that is used for described second valve port of shutoff, and this needle supports by Regulation spring is relative with drive link.
The top of described valve body is provided with a groove, one spring is housed in this groove, the connecting rod on described needle seat top passes the bottom that described spring withstands on described drive block, and described connecting rod is provided with the block that is used for fixing described spring, and this block is positioned at the top of described spring.
The utility model expansion valve has the bivalve mouth, i.e. first valve port and second valve port, and the advantage of this structure is: 1, control refrigerant feed liquid quantitative change reaction velocity is fast; 2, the fluctuation of control evaporating temperature is less; 3, unit eer height.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of needle seat.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As Fig. 1, shown in 2, a kind of thermal expansion valve arrangement of the utility model with bivalve mouth, comprise valve body 10 and the power head part 20 that is positioned at its upper end, described power head part 20 comprises bulb 21, capillary tube 22, last membrane cover 23, diaphragm 24, following membrane cover 25 and drive block 26, offer first interface 11 and second interface 12 on the described valve body 10, be provided with first valve port 50 that is communicated with first interface 11 and second interface 12 in the described valve body 10, wherein, described first valve port 50 places are provided with a needle seat 30 that can move up and down the hollow of adjusting, as shown in Figure 2, the bottom of this needle seat 30 extends outward the conical surface 31 that is used for described first valve port 50 of shutoff, the sidewall of described needle seat 30 is provided with the through hole 32 that communicates with described first interface 11, second valve port 60 is formed on the bottom of described needle seat hollow, described needle seat 30 belows are provided with the needle 40 that is used for described second valve port 60 of shutoff, and this needle 40 is by Regulation spring 41 and drive link 42 relative supports.
As shown in Figure 1, 2, the top of described valve body 10 is provided with a groove 13, one spring 34 is housed in this groove 13, the connecting rod 35 on described needle seat 30 tops passes the bottom that described spring 34 withstands on described drive block 26, described connecting rod 35 is provided with the block 36 that is used for fixing described spring 34, this block 36 is positioned at the top of described spring 34, the purpose that spring 34 is set is: do not have pressure or pressure hour in bulb, spring 34 has tension upwards by 36 pairs of needle seats 30 of block, makes first valve port be in closed condition.
Working principle of the present utility model: when the air-conditioning unit has just been started shooting, bulb 21 internal pressures are bigger, win valve port 50 and second valve port 60 are opened simultaneously, this moment is bigger by the refrigerant flow of first valve port 50 and second valve port 60, can rapidly the unit evaporating temperature be dropped in the claimed range; When the air-conditioning unit reached more stable state, bulb 21 internal pressures were less, and underpressure can only be regulated the liquid supply rate of refrigeration agents by second valve port 60 to open first valve port 50 at this moment, keep intrasystem evaporating temperature not fluctuate within the specific limits.
Claims (2)
1. thermal expansion valve arrangement with bivalve mouth, comprise valve body and the power head part that is positioned at its upper end, described power head part comprises bulb, capillary tube, last membrane cover, diaphragm, following membrane cover and drive block, offer first interface and second interface on the described valve body, be provided with first valve port that is communicated with first interface and second interface in the described valve body, it is characterized in that: the described first valve port place is provided with a needle seat that can move up and down the hollow of adjusting, the bottom of this needle seat extends outward the conical surface that is used for described first valve port of shutoff, the sidewall of described needle seat is provided with the through hole that communicates with described first interface, second valve port is formed on the bottom of described needle seat hollow, described needle seat below is provided with the needle that is used for described second valve port of shutoff, and this needle supports by Regulation spring is relative with drive link.
2. the thermal expansion valve arrangement with bivalve mouth according to claim 1, it is characterized in that: the top of described valve body is provided with a groove, one spring is housed in this groove, the connecting rod on described needle seat top passes the bottom that described spring withstands on described drive block, described connecting rod is provided with the block that is used for fixing described spring, and this block is positioned at the top of described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202107313U CN201513625U (en) | 2009-10-14 | 2009-10-14 | Thermostatic expansion valve structure having two valve ports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202107313U CN201513625U (en) | 2009-10-14 | 2009-10-14 | Thermostatic expansion valve structure having two valve ports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513625U true CN201513625U (en) | 2010-06-23 |
Family
ID=42485035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202107313U Expired - Lifetime CN201513625U (en) | 2009-10-14 | 2009-10-14 | Thermostatic expansion valve structure having two valve ports |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513625U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661639A (en) * | 2012-04-12 | 2012-09-12 | 浙江盾安人工环境股份有限公司 | Thermostatic expansion valve |
| CN105889590A (en) * | 2016-05-26 | 2016-08-24 | 上海恒温控制器厂有限公司 | Double valve port flow regulating mechanism in expansion valve and expansion valve |
| CN114087807A (en) * | 2021-11-15 | 2022-02-25 | 上海恒温控制器厂有限公司 | Double-valve needle type thermal expansion valve and method |
-
2009
- 2009-10-14 CN CN2009202107313U patent/CN201513625U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661639A (en) * | 2012-04-12 | 2012-09-12 | 浙江盾安人工环境股份有限公司 | Thermostatic expansion valve |
| CN102661639B (en) * | 2012-04-12 | 2013-12-25 | 浙江盾安人工环境股份有限公司 | Thermostatic expansion valve |
| CN105889590A (en) * | 2016-05-26 | 2016-08-24 | 上海恒温控制器厂有限公司 | Double valve port flow regulating mechanism in expansion valve and expansion valve |
| CN105889590B (en) * | 2016-05-26 | 2017-12-22 | 上海恒温控制器厂有限公司 | Bivalve mouth flow control device and expansion valve in expansion valve |
| CN114087807A (en) * | 2021-11-15 | 2022-02-25 | 上海恒温控制器厂有限公司 | Double-valve needle type thermal expansion valve and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201802 Shanghai City, Jiading District Nanxiang Town in North Road 1755 Lane 15, 1-4 floor B District Patentee after: Shanghai Shen refrigeration controller Limited by Share Ltd Address before: 201802 Shanghai Jiading District Nanxiang really Road South Town, No. 5008 Patentee before: SHANGHAI FENGSHEN REFRIGERATION CONTROLS CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |
|
| CX01 | Expiry of patent term |