CN105042128A - Straight-through type stop check valve for industrial refrigeration - Google Patents
Straight-through type stop check valve for industrial refrigeration Download PDFInfo
- Publication number
- CN105042128A CN105042128A CN201510304268.9A CN201510304268A CN105042128A CN 105042128 A CN105042128 A CN 105042128A CN 201510304268 A CN201510304268 A CN 201510304268A CN 105042128 A CN105042128 A CN 105042128A
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- China
- Prior art keywords
- valve
- pipeline
- valve rod
- straight
- rod
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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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to the technical filed of valves, in particular to a straight-through type stop check valve for industrial refrigeration. The straight-through type stop check valve for industrial refrigeration comprises a valve seat, a valve cover, a valve rod and a hand wheel, wherein the valve seat is provided with a transverse pipeline and an inclined pipeline; an inlet is formed in one end of the transverse pipeline; an outlet is formed in the other end of the transverse pipeline; a valve clack is arranged between the inclined pipeline and the transverse pipeline; the valve rod is connected on the valve clack by a spring; a valve rod sleeve is arranged outside the valve rod in a sleeving mode; the top end of the valve rod is connected with the hand wheel; the valve cover is connected with valve seat flange; and a lock column for locking the valve rod is arranged at the top end of the valve cover. The straight-through type stop check valve serves multiple purposes, is suitable for the valve development trend, capable of enabling a pipeline to be compact and simple to operate, so that the cost is reduced; and the straight-through type stop check valve is an ideal substitute for some refrigeration valves.
Description
Technical field
The present invention relates to valve technology field, especially a kind of industrial refrigeration straight-through type screw down nonreturn valve.
Background technique
At the main frame valve no matter China be refrigerator, or the valve major part on container and refrigerator pipeline is that a valve is special.Main exhaust valve as refrigerator is exactly single stop valve.By refrigerator working specification, during compressor start, starting electrical machinery need open high pressure air exhaust valve rapidly, and slowly opens Aspirating valves, makes exhaust pressure be no more than 1.5MPa.In addition, first open the liquid supply valve of circulation liquid receiver and the liquid feed valve of ammonia pump during ammonia pump work, make to fill ammoniacal liquor in ammonia pump, then open liquid valve.When ammonia pump shuts down, should liquid valve be closed, or safety check is set in ammonia pump inlet, prevent the refluence of liquid medium.So need to design a kind of screw down nonreturn valve, action when avoiding refrigeration compressor to start, reduce ammonia pump work time be prevent medium from flowing backwards use valve quantity.
Summary of the invention
The technical problem to be solved in the present invention is: based on the problems referred to above, the invention provides a kind of industrial refrigeration straight-through type screw down nonreturn valve of multi-purpose valve.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat, valve gap, valve rod and handwheel, described valve seat has horizontal pipeline and oblique pipeline, one end of described horizontal pipeline is import, the other end is outlet, flap is provided with between described oblique pipeline and horizontal pipeline, flap connects valve rod by spring, valve rod overcoat has valve stem casing, valve rod, top connect handwheel, described valve gap and valve seat Flange joint, valve gap top is provided with locks the lock of valve rod.
Further, the angle between described horizontal pipeline and oblique pipeline is 45 °.
The invention has the beneficial effects as follows: multi-purpose valve, adapt to valve development trend, pipeline can be made compact, simple to operate, reduce costs, is the desirable alternative of part refrigeration valve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing embodiment, the present invention is further described.
Fig. 1 is structural representation of the present invention.
In figure: 1. valve seat, 2. valve gap, 3. valve rod, 4. handwheel, 5. flap, 6. spring, 7. valve stem casing, 8. lock, 11. horizontal pipelines, 12. oblique pipelines, 11a. import, 11b. exports.
Embodiment
The invention will be further described in conjunction with specific embodiments now, and following examples are intended to the present invention instead of limitation of the invention further are described.
As shown in Figure 1, a kind of industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat 1, valve gap 2, valve rod 3 and handwheel 4, valve seat 1 has horizontal pipeline 11 and oblique pipeline 12, one end of horizontal pipeline 11 is import 11a, the other end is outlet 11b, is provided with flap 5, flap 5 connects valve rod 3 by spring 6 between oblique pipeline 12 and horizontal pipeline 11, valve rod 3 overcoat has valve stem casing 7, the top of valve rod 3 connects handwheel 4, and valve gap 2 and valve seat 1 Flange joint, valve gap 2 top is provided with the lock 8 of locking valve rod 3.
Further, the angle between horizontal pipeline 11 and oblique pipeline 12 is 45 °.
When this valve is used as safety valve, flap 5 is formed with valve seat 1 and seals under spring 6 acts on, and adjustment spring force and medium active force balance each other, and lock valve rod with lock 8, valve is opened under pressure.
When this valve is used as screw down nonreturn valve, unclamp lock 8, make valve rod 3 not by the active force of lock 8.Rotate counterclockwise handwheel 4, valve makes flap 5 and valve seat 1 seal by back pressure active force, and now valve plays the effect of safety check.Clockwise direction rotation hand wheel 4, valve rod 3 moves down, and spring 6 is compression under valve rod 3 acts on, and block media flow, this valve plays again the effect of stop valve.
When this valve is used as stop safety valve, valve is adjusted to the opened by pressure of regulation, and marks on valve rod 3 and lock 8 are fixed, back out lock 8, valve rod 3 can be moved up and down.When this valve is installed on pipeline or container, when pipeline or container work pressure are less than authorized pressure, rotation hand wheel 4, namely circulation valve rod 3 being moved down block medium is valve-closed state.Now valve rod 3 is in the mark position of the valve rod 3 mixed up with lock 8, valve seal.When pipeline or container are due under some operating conditions, pressure exceedes specified value, and valve just opens pressure release automatically, and under pipeline or container return to nominal situation, valve is just closed automatically, and this valve plays again the effect of safety valve.Rotation hand wheel 4, valve rod 3 is moved up, and spring 6 is in free state, and now medium is just flowed to area of low pressure by high-pressure area, and valve is in opening state again.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (2)
1. an industrial refrigeration straight-through type screw down nonreturn valve, comprise valve seat (1), valve gap (2), valve rod (3) and handwheel (4), it is characterized in that: described valve seat (1) has horizontal pipeline (11) and oblique pipeline (12), one end of described horizontal pipeline (11) is import (11a), the other end is outlet (11b), flap (5) is provided with between described oblique pipeline (12) and horizontal pipeline (11), flap (5) connects valve rod (3) by spring (6), valve rod (3) overcoat has valve stem casing (7), the top of valve rod (3) connects handwheel (4), described valve gap (2) and valve seat (1) Flange joint, valve gap (2) top is provided with the lock (8) of locking valve rod (3).
2. a kind of industrial refrigeration straight-through type screw down nonreturn valve according to claim 1, is characterized in that: the angle between described horizontal pipeline (11) and oblique pipeline (12) is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304268.9A CN105042128A (en) | 2015-06-04 | 2015-06-04 | Straight-through type stop check valve for industrial refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304268.9A CN105042128A (en) | 2015-06-04 | 2015-06-04 | Straight-through type stop check valve for industrial refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042128A true CN105042128A (en) | 2015-11-11 |
Family
ID=54448934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510304268.9A Pending CN105042128A (en) | 2015-06-04 | 2015-06-04 | Straight-through type stop check valve for industrial refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042128A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488406A (en) * | 2018-04-23 | 2018-09-04 | 芜湖市华邦流体科技有限公司 | A kind of limit gate valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005140182A (en) * | 2003-11-05 | 2005-06-02 | Kane Kogyo Kk | Water shut off valve with backflow preventive function |
| CN202708220U (en) * | 2012-05-30 | 2013-01-30 | 中国船舶重工集团公司第七一九研究所 | Noise reduction structure of pump pipeline valve applied to water supplying and draining system |
| CN203384431U (en) * | 2013-06-15 | 2014-01-08 | 曹易 | Check and stop angle valve |
| CN204004592U (en) * | 2014-05-19 | 2014-12-10 | 天津塘沽瓦特斯阀门有限公司 | A kind of cut-off non-return multifunctional integral valve with filtrating equipment |
| CN204664505U (en) * | 2015-05-28 | 2015-09-23 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration straight-through type screw down nonreturn valve |
-
2015
- 2015-06-04 CN CN201510304268.9A patent/CN105042128A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005140182A (en) * | 2003-11-05 | 2005-06-02 | Kane Kogyo Kk | Water shut off valve with backflow preventive function |
| CN202708220U (en) * | 2012-05-30 | 2013-01-30 | 中国船舶重工集团公司第七一九研究所 | Noise reduction structure of pump pipeline valve applied to water supplying and draining system |
| CN203384431U (en) * | 2013-06-15 | 2014-01-08 | 曹易 | Check and stop angle valve |
| CN204004592U (en) * | 2014-05-19 | 2014-12-10 | 天津塘沽瓦特斯阀门有限公司 | A kind of cut-off non-return multifunctional integral valve with filtrating equipment |
| CN204664505U (en) * | 2015-05-28 | 2015-09-23 | 常州埃姆基冷冻设备有限公司 | Industrial refrigeration straight-through type screw down nonreturn valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488406A (en) * | 2018-04-23 | 2018-09-04 | 芜湖市华邦流体科技有限公司 | A kind of limit gate valve |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |