CN103498959A - Temperature control valve - Google Patents
Temperature control valve Download PDFInfo
- Publication number
- CN103498959A CN103498959A CN201310425919.0A CN201310425919A CN103498959A CN 103498959 A CN103498959 A CN 103498959A CN 201310425919 A CN201310425919 A CN 201310425919A CN 103498959 A CN103498959 A CN 103498959A
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- China
- Prior art keywords
- valve
- spring
- spool
- end cap
- back pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses a temperature control valve and belongs to the field of fluid control valves. The temperature control valve is mainly used for controlling the flowing direction and the flow of a fluid system. The temperature control valve comprises a valve body, an end cover A and an end cover B are arranged at the two ends of the valve body respectively and connected with the two ends of the valve body through threads, a valve rod, a valve element, a valve sleeve, a spring A, a spring B and a spring are arranged in the valve body, the valve rod is respectively connected with the end cover A and the end cover B through threads and a fastening nut, the valve element is installed on the valve rod, and the portion, between the valve element and the end cover B, of the valve rod is sleeved with the spring. The spring A and the spring B are located between the portion on one side of the valve element and the end cover A and between the portion on the other side of the valve element and the end cover B. An expansion chamber is formed inside the valve element, and temperature sensing material is filled into the expansion chamber. Through the technical scheme, the temperature control valve solves the problems that an existing fluid control method for controlling the fluid direction and the flow according to temperature is complex in control, high in cost and high in requirement for a posterior maintenance technology.
Description
Technical field
The invention belongs to control valve for fluids, specifically, relate in particular to a kind of heat-operated valve.
Background technique
The flow direction of the temperature control fluid used at liquid control system at present and the device of flow, its basic principle is all to utilize the temperature of temperature sensor senses fluid system inner fluid, then controls solenoid valve by controller and regulate flow direction and flow.Its structure adopted is temperature transducer, controller, solenoid valve basically, and the required element cost of this control mode is higher, and also needs the technician that higher technical merit is arranged during maintaining.So in actual use, the fluid of this automatically controlled automatic mode is controlled the rising not only cause cost of production but also the maintaining in later stage is had to higher requirement.
Summary of the invention
The object of the invention is to disclose a kind of heat-operated valve, for solving existing fluid, control the problem that control is complicated, cost is higher and the later maintenance technical requirements is high existed because of foundation temperature control fluid direction and flow.
The present invention is achieved by the following technical solutions:
A kind of heat-operated valve, comprise valve body, the two ends of valve body are respectively equipped with end cap A, the end cap B be threaded connection, be provided with valve rod, spool, valve pocket, spring A, spring B, spring in described valve body, valve rod is connected with end cap A, end cap B by screw thread, tightening nut respectively, spool is installed on valve rod, and on the valve rod between spool and end cap B, cover has spring; Spring A, spring B lay respectively between the valve pocket and end cap A, end cap B of spool both sides; Described valve core inside is provided with expansion chamber, in the inside of expansion chamber, is filled with temperature sensing material.
One side of described valve body is provided with flange, in the cavity of flange and valve body formation, is provided with back pressure valve valve seat, back pressure valve spool, between described back pressure valve valve seat and back pressure valve spool, is provided with the back pressure valve spring.
Be provided with plug on the spool above described expansion chamber, plug contributes to fill temperature sensing material in expansion chamber.
Described temperature sensing material is paraffin.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention utilizes the characteristic of temperature sensing material to the temperature variation sensitivity, makes the present invention can be according to moving direction and the flow of the temperature self regulating valve body inner fluid of fluid, and fluid flow can be protected self and follow-up element while changing suddenly;
2, the present invention can reach the simplification control mode, reduce production costs and the technical requirements of later stage system maintenance maintenance, and simple structure, stable performance, be suitable for tissue production;
3, the back pressure valve structure in the present invention can provide a back pressure for whole liquid control system, thereby reach, improves the handling of fluid system;
4, the design of bypass valve that the present invention is integrated, the bypass valve of the desirable radiator that disappears when applying to the hydraulic system radiating module, thereby reduce the cost of hydraulic oil radiator, and can effectively reduce hydraulic oil radiator larger resistance because of the large generation of hydraulic oil viscosity when hydraulic fluid temperature is low and cause the possibility of damaging.
The accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
In figure: 1. end cap A; 2, O type packing ring first; 3, valve body; 4, spring A; 5, valve pocket; 6, valve rod; 7, bolt; 8, O type packing ring second; 9, flange; 10, back pressure valve spool; 11, plug; 12, O type packing ring third; 13, spool; 14, O type packing ring fourth; 15, spring; 16, spring B; 17, O type packing ring penta; 18, end cap B; 19, tightening nut; 20, back pressure valve valve seat; 21, expansion chamber; 22, back pressure valve spring.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in the figure, the present invention includes valve body 3, the two ends of valve body 3 are respectively equipped with end cap A1, the end cap B18 be threaded connection, be provided with valve rod 6, spool 13, valve pocket 5, spring A4, spring B 16, spring 15 in described valve body 3, valve rod 6 is connected with end cap A1, end cap B18 by screw thread, tightening nut 19 respectively, spool 13 is installed on valve rod 6, and on the valve rod 6 between spool 13 and end cap B18, cover has spring 15; Spring A4, spring B 16 lay respectively between the valve pocket 5 and end cap A1, end cap B18 of spool 13 both sides; Described spool 13 inside are provided with expansion chamber 21, in the inside of expansion chamber 21, are filled with temperature sensing material.By rotary valve rod 6 expose six sides the time can adjust valve rod 6 and be installed on spool 13 on valve rod 6 position with respect to whole heat-operated valve, to realize the performance adjustment to heat-operated valve.
One side of described valve body 3 is provided with flange 9, in the cavity formed at flange 9 and valve body 3, is provided with back pressure valve valve seat 20, back pressure valve spool 10, between described back pressure valve valve seat 20 and back pressure valve spool 10, is provided with back pressure valve spring 22.
Be provided with plug 11 on the spool 13 above described expansion chamber 21.The effect of plug 11 is to make the temperature sensing material of filling to be convenient to be filled to expansion chamber 21 inside.
Described temperature sensing material is paraffin.Paraffin has good temperature characteristic as temperature sensing material, but described in the present invention, temperature sensing material is not limited to paraffin.
The expansion chamber 21 that valve rod 6 and valve pocket 5 and O type packing ring second 8, O type packing ring fourth 14 form, the little ring cavity that this expansion chamber 21 can be regarded as by the large ring cavity of a fixed volume and a variable-volume forms, even the structure by this expansion chamber 21 can make the temperature sensing material in expansion chamber 21 obtain in the situation of the less variation of volume generation because of temperature variation, also can make valve pocket 5 produce a relatively large displacement with respect to valve rod 6, thereby increase the sensitivity of thermostat valve.
The two ends of spring 15 contact with end cap B18 with spool 13 respectively, in order to the restoring force of spool 13 in movement process to be provided.
For guaranteeing the leakproofness of sealing, be respectively equipped with O type packing ring first 2 in the joint of end cap A1, end cap B18 and valve body 3; Be respectively equipped with O type packing ring second 8, O type packing ring fourth 14 in the joint of spool 13 and valve rod 6; Be provided with O type packing ring penta 17 in the joint of valve rod 6 and end cap B18; Be provided with O type packing ring the third 12 in the joint of valve body 3 and flange 9.
Embodiment one
A kind of heat-operated valve, comprise valve body 3, the two ends of valve body 3 are respectively equipped with end cap A1, the end cap B18 be threaded connection, it is characterized in that: be provided with valve rod 6, spool 13, valve pocket 5, spring A4, spring B 16, spring 15 in described valve body 3, valve rod 6 is installed on end cap B18 by tightening nut 19, spool 13 is installed on valve rod 6, and on the valve rod 6 between spool 13 and end cap B18, cover has spring 15; Spring A4, spring B 16 lay respectively between the valve pocket 5 and end cap A1, end cap B18 of spool 13 both sides; Described spool 13 inside are provided with expansion chamber 21, in the inside of expansion chamber 21, are filled with paraffin; For guaranteeing the sealing of joint, be respectively equipped with O type packing ring first 2 in the joint of end cap A1, end cap B18 and valve body 3; Be respectively equipped with O type packing ring second 8, O type packing ring fourth 14 in the joint of spool 13 and valve rod 6; Be provided with O type packing ring penta 17 in the joint of valve rod 6 and end cap B18.
Embodiment two
A kind of heat-operated valve, comprise valve body 3, the two ends of valve body 3 are respectively equipped with end cap A1, the end cap B18 be threaded connection, it is characterized in that: be provided with valve rod 6, spool 13, valve pocket 5, spring A4, spring B 16, spring 15 in described valve body 3, valve rod 6 is installed on end cap B18 by tightening nut 19, spool 13 is installed on valve rod 6, and on the valve rod 6 between spool 13 and end cap B18, cover has spring 15; Spring A4, spring B 16 lay respectively between the valve pocket 5 and end cap A1, end cap B18 of spool 13 both sides; Described spool 13 inside are provided with expansion chamber 21, in the inside of expansion chamber 21, are filled with paraffin.One side of described valve body 3 is provided with flange 9, be provided with back pressure valve valve seat 20, back pressure valve spool 10 in the cavity formed at flange 9 and valve body 3, be provided with back pressure valve spring 22 between described back pressure valve valve seat 20 and back pressure valve spool 10, on the spool 13 above described expansion chamber 21, be provided with plug 11; For guaranteeing the leakproofness of sealing, be respectively equipped with O type packing ring first 2 in the joint of end cap A1, end cap B18 and valve body 3; Be respectively equipped with O type packing ring second 8, O type packing ring fourth 14 in the joint of spool 13 and valve rod 6; Be provided with O type packing ring penta 17 in the joint of valve rod 6 and end cap B18; Be provided with O type packing ring the third 12 in the joint of valve body 3 and flange 9.
When temperature that the fluid temperature (F.T.) of inside of the present invention expands lower than the temperature sensing material that makes expansion chamber inside, the position of spool 13 in left side, the fluid in this time domain II flows to regional III by the gap between the valve pocket 5 on spool 13 and right side under the effect of pressure.
When the fluid temperature (F.T.) of inside of the present invention reaches a certain scope, temperature sensing material starts to expand, now temperature sensing material promotion spool 13 moves to the right, now between spool 13 and left side valve pocket 5, just can produce gap because of moving to right of spool 13, the fluid of II inside, zone just can flow to regional I by the gap produced under the effect of pressure, temperature continuation rising along with hydraulic fluid, temperature sensing material constantly expands, make spool 13 continue to move to the right, the flow that flows to regional III in this time domain II reduces, and the flow that flows to regional I increases.
When temperature is elevated to certain temperature, spool 13 is with together with the valve pocket 5 on right side fits to, closed the gap that is flowed to regional III by regional II, thereby the regional II of the fluid of having realized the heat-operated valve piece in the present invention when starting → regional III converts regional II → regional I to.
When the variation tendency of temperature is from high to low the time, temperature sensing material smaller volume in expansion chamber 21, under the acting in conjunction of temperature sensing material and spring 15, make spool 13 move to left, thereby make the fluid of valve inner change into gradually the flow direction of regional II → regional III from the flow direction of regional II → regional I.
The back pressure valve spool 10 at B mouth place, back pressure valve valve seat 20, back pressure valve spring 22 and flange 9 form back pressure valve, when fluid flow into the inside of valve body 4 from the B mouth, B mouth place is provided with back pressure valve can be so that fluid system has a stable back pressure, thereby has better maneuverability; When fluid system does not need back pressure, thereby can cancel this back pressure valve structure, make the present invention obtain the less pressure loss.
In actual use, the fluid flow that enters into valve body 3 inside by B mouth place is not unalterable.When the flow of B mouth increases suddenly, be not enough to meet the fluid of this unexpected increase by the gap of regional II → regional I or regional III, the pressure of regional II inside will rise.When the pressure of regional II inside is greater than the spring A1 of valve pocket 5 sides or elastic force that spring B 16 provides; thereby valve pocket 5 will move because of the rising of pressure the gap increased between itself and spool 13 outward; and then the negotiability of raising fluid; reduce the pressure of regional II and adjacent area I or III, reach the purpose of protection subsequent element.In view of the foregoing, the present invention needs the parameter of coming setting spring A1 or spring B 16 according to regional I or the III of priority protection in the Practical manufacturing process.
In the process of using, the present invention can also be for the sink of hydraulic system, and the regional I in the present invention is received hydraulic oil radiator, and regional III is received hydraulic oil tank.During normal operating condition, the temperature of hydraulic system is lower.Spool 13 will be closed the oil circuit of hydraulic oil radiator in left side, and now the pressure of hydraulic oil radiator can be because of the large generation flowing pressure of viscosity when the low temperature of hydraulic oil; When temperature raises, now the hydraulic pressure oil viscosity is little, at the hydraulic oil radiator place, also can not produce larger flowing pressure, thereby reaches the purpose of protection hydraulic oil radiator.
Claims (4)
1. a heat-operated valve, comprise valve body (3), the two ends of valve body (3) are respectively equipped with the end cap A(1 be threaded connection), end cap B(18), it is characterized in that: be provided with valve rod (6) in described valve body (3), spool (13), valve pocket (5), spring A(4), spring B (16), spring (15), valve rod (6) passes through respectively screw thread, tightening nut (19) and end cap A(1), end cap B(18) connect, spool (13) is installed on valve rod (6), at spool (13) and end cap B(18) between the upper cover of valve rod (6) spring (15) is arranged, spring A(4), spring B (16) lays respectively at valve pocket (5) and the end cap A(1 of spool (13) both sides), end cap B(18) between, described spool (13) inside is provided with expansion chamber (21), in the inside of expansion chamber (21), is filled with temperature sensing material.
2. heat-operated valve according to claim 1, it is characterized in that: a side of described valve body (3) is provided with flange (9), be provided with back pressure valve valve seat (20), back pressure valve spool (10) in the cavity formed at flange (9) and valve body (3), between described back pressure valve valve seat (20) and back pressure valve spool (10), be provided with back pressure valve spring (22).
3. heat-operated valve according to claim 1 and 2, is characterized in that: on the spool (13) of described expansion chamber (21) top, be provided with plug (11).
4. heat-operated valve according to claim 3, it is characterized in that: described temperature sensing material is paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425919.0A CN103498959B (en) | 2013-09-18 | 2013-09-18 | Temperature control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310425919.0A CN103498959B (en) | 2013-09-18 | 2013-09-18 | Temperature control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103498959A true CN103498959A (en) | 2014-01-08 |
| CN103498959B CN103498959B (en) | 2017-09-29 |
Family
ID=49864195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310425919.0A Active CN103498959B (en) | 2013-09-18 | 2013-09-18 | Temperature control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103498959B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236836A (en) * | 2021-05-27 | 2021-08-10 | 泉州日美卫浴有限公司 | Angle valve |
| CN114001500A (en) * | 2021-11-26 | 2022-02-01 | 温岭市恒发空调部件有限公司 | Expansion valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203764U (en) * | 1987-03-19 | 1988-05-18 | 浙江瑞安永久机电研究所 | Auto constant temp. valve |
| EP0691494A1 (en) * | 1994-07-07 | 1996-01-10 | Hans Grohe GmbH & Co. KG | Sanitary valve |
| CN1696553A (en) * | 2004-05-12 | 2005-11-16 | 温强 | Tee joint type automatic temperature control valve |
| CN202371214U (en) * | 2011-11-24 | 2012-08-08 | 北京龙浩安达新技术有限公司 | Cold-hot switching mixing valve |
| US20120247582A1 (en) * | 2011-04-01 | 2012-10-04 | Kevin Lamb | Temperature Control Valve With Pressure Relief |
| CN203463774U (en) * | 2013-09-18 | 2014-03-05 | 山东临工工程机械有限公司 | Temperature control valve |
-
2013
- 2013-09-18 CN CN201310425919.0A patent/CN103498959B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203764U (en) * | 1987-03-19 | 1988-05-18 | 浙江瑞安永久机电研究所 | Auto constant temp. valve |
| EP0691494A1 (en) * | 1994-07-07 | 1996-01-10 | Hans Grohe GmbH & Co. KG | Sanitary valve |
| CN1696553A (en) * | 2004-05-12 | 2005-11-16 | 温强 | Tee joint type automatic temperature control valve |
| US20120247582A1 (en) * | 2011-04-01 | 2012-10-04 | Kevin Lamb | Temperature Control Valve With Pressure Relief |
| CN202371214U (en) * | 2011-11-24 | 2012-08-08 | 北京龙浩安达新技术有限公司 | Cold-hot switching mixing valve |
| CN203463774U (en) * | 2013-09-18 | 2014-03-05 | 山东临工工程机械有限公司 | Temperature control valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236836A (en) * | 2021-05-27 | 2021-08-10 | 泉州日美卫浴有限公司 | Angle valve |
| CN114001500A (en) * | 2021-11-26 | 2022-02-01 | 温岭市恒发空调部件有限公司 | Expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103498959B (en) | 2017-09-29 |
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