阅读说明：本技术 一种用于管中管的延迟出水阀及其热水排放系统 (Delay water outlet valve for pipe-in-pipe and hot water discharge system thereof ) 是由 陈友苗 陈奎宏 于 2020-06-15 设计创作，主要内容包括：本发明属于生活用水技术领域,特指一种用于管中管的延迟出水阀及其热水排放系统,其包括热水器、进液阀和管中管管路,管中管管路的支路末端通过管中管接头安装有延迟出水阀,延迟出水阀包括阀体,阀体上设置有出液端以及管中管连接端,管中管连接端上设置有内流道以及外流道,出液端通过阀体内腔连通内流道和外流道；管中管连接端内侧设置有分离内外流道的延迟密封部,阀体内腔设置有阻尼活塞以及提供弹力的第一复位件,阻尼活塞安装在延迟密封部的外侧壁或者内侧壁上,并实现外流道或者内流道的密封；当内部介质推动阻尼活塞,使其分离延迟密封部时,实现阻尼活塞所在流道的延迟出液。本发明具有冷水放空量少、热水出水速度快等优点。(The invention belongs to the technical field of domestic water, in particular to a delay water outlet valve for a pipe-in-pipe and a hot water discharge system thereof, wherein the delay water outlet valve comprises a water heater, a liquid inlet valve and a pipe-in-pipe pipeline, the tail end of a branch of the pipe-in-pipe pipeline is provided with the delay water outlet valve through a pipe-in-pipe joint, the delay water outlet valve comprises a valve body, the valve body is provided with a liquid outlet end and a pipe-in-pipe connecting end, the pipe-in-pipe connecting end is provided with an inner flow passage and an outer flow passage, and the; the inner side of the pipe-in-pipe connecting end is provided with a delay sealing part for separating an inner flow passage and an outer flow passage, the inner cavity of the valve body is provided with a damping piston and a first reset piece for providing elasticity, and the damping piston is arranged on the outer side wall or the inner side wall of the delay sealing part and realizes the sealing of the outer flow passage or the inner flow passage; when the internal medium pushes the damping piston to separate the delay sealing part, the delayed liquid outlet of the flow passage where the damping piston is located is realized. The invention has the advantages of less cold water emptying, high hot water outlet speed and the like.)

1. The utility model provides a postpone outlet valve for managing in pipe, includes valve body (1), is provided with on valve body (1) and goes out liquid end (11) and pipe in pipe link (12), its characterized in that: an inner runner (14) of a communicating pipe-in-pipe inner pipe (104) and an outer runner (15) of a communicating pipe-in-pipe outer pipe (105) are arranged on the pipe-in-pipe connecting end (12), and the liquid outlet end (11) is communicated with the inner runner (14) and the outer runner (15) through an inner cavity of the valve body (1);

a delay sealing part (4) is arranged on the inner side of the pipe-in-pipe connecting end (12), a damping piston (2) and a first reset piece (3) for providing elasticity are arranged in the inner cavity of the valve body (1), the damping piston (2) is installed on the outer side wall or the inner side wall of the delay sealing part (4), and sealing of an outer flow passage (15) or an inner flow passage (14) is realized;

when the internal medium pushes the damping piston (2) to separate the delay sealing part (4), the delayed liquid outlet of the flow passage where the damping piston (2) is located is realized.

2. A delayed outlet valve for a pipe in a pipe as claimed in claim 1, wherein: be provided with damping chamber (21) in valve body (1), be provided with in damping chamber (21) damping piston (2) and first piece (3) that reset, damping chamber (21) still are provided with the damping regulation runner of intercommunication valve body (1) inner chamber.

3. A delayed outlet valve for a pipe in a pipe as claimed in claim 2, wherein: a piston guide rod (23) is arranged in the valve body (1), and the piston guide rod (23) is provided with a middle flow passage (24) which is communicated with the inner flow passage, the outer flow passage and the liquid outlet end (11); the damping cavity (21) is arranged between the piston guide rod (23) and the inner wall of the valve body (1), or inside the piston guide rod (23).

4. A delayed outlet valve for a pipe in a pipe as claimed in claim 3, wherein: the damping adjusting flow channel is provided with a damping adjusting hole (22a) or a damping adjusting groove (22b) on the piston guide rod (23)/the damping piston (2), or is a damping gap arranged between the end part of the damping piston (2) and the piston guide rod (23).

5. A delayed outlet valve for a pipe in a pipe according to any of claims 2-4, characterized in that: and a damping adjusting piece (25) is arranged in the valve body (1), the inner end of the damping adjusting piece (25) is arranged on the damping adjusting flow passage, the size of the damping adjusting flow passage is controlled, and the adjustment of delay time is realized.

6. A delayed outlet valve for a pipe in a pipe as claimed in claim 5, wherein: and a filter screen (26) is arranged on the inner side of the damping adjusting flow passage.

7. A delayed outlet valve for a pipe in a pipe as claimed in claim 1, wherein: the valve body (1) is provided with a connecting pipe (31) with an inner flow channel (14), and the connecting pipe (31) extends into the inner cavity of the valve body (1) to form the delay sealing part (4); a plurality of outer liquid inlet holes (16) are formed in the valve body (1) on the outer side of the connecting pipe (31), and the outer liquid inlet holes (16) form the outer flow channel (15).

8. A delayed outlet valve for a pipe in a pipe as claimed in claim 7, wherein: the outer side of the connecting pipe (31) is clamped with a movable sealing sleeve (32) and a second reset piece (33), and the movable sealing sleeve (32) is used for connecting a pipe-in-pipe inner pipe.

9. A delayed outlet valve for a pipe in a pipe as claimed in claim 1, wherein: a control end (13) is arranged between the pipe-in-pipe connecting end (12) and the liquid outlet end (11), and a control valve core (17) and a hand wheel (18) for driving the control valve core (17) to rotate are arranged in the control end (13);

the valve body (1) comprises an upper valve body (41) provided with a liquid outlet end (11) and a control end (13) and a lower valve body (42) provided with a pipe-in-pipe connecting end (12), wherein the outer side wall of the lower valve body (42) is provided with a threaded connecting part (43) for connecting a pipe-in-pipe pipeline and a clamping part (44) for driving the threaded connecting part to rotate.

10. A delayed outlet valve for a pipe-in-pipe according to any one of claims 1-4 or 9, characterized in that: the pipe-in-pipe connecting end (12) comprises a connecting sleeve (51) which is arranged at the end part of the valve body (1) in a split mode, the middle of the connecting sleeve (51) is provided with the delay sealing part (4) and forms an inner flow channel (14), the periphery of the connecting sleeve is provided with a plurality of outer liquid inlet holes (16) which form an outer flow channel (15), and the connecting sleeve (51) abuts against between the pipe-in-pipe inner pipe (104) and the damping piston (2).

11. A delayed outlet valve for a pipe in a pipe as claimed in claim 12, wherein: at least one backflow hole (52) is formed in the sealing end of the damping piston (2), and a water return sheet (53) is arranged on the outer side of the backflow hole (52).

12. A delayed outlet valve for a pipe-in-pipe according to any one of claims 1-4 or 9, characterized in that: the damping piston (2) is provided with a piston support (61), and the piston support (61) comprises an upper support arranged in the damping cavity (21) and a lower support for mounting the damping piston (2); when the damping piston (2) seals the outer flow passage (15), the piston support (61) is provided with a liquid passing hole (62).

13. A hot water discharge system comprising a water heater (101), a liquid inlet valve (102) and a pipe-in-pipe line (103), characterized in that: the branch end of the pipe-in-pipe pipeline (103) is provided with the delay outlet valve (100) according to any one of 1-12 through a pipe-in-pipe joint.

14. A delayed outlet valve for a pipe in a pipe as claimed in claim 13, wherein: the valve body (1) is also internally provided with a temperature control device, and when the temperature control device senses hot water, the temperature control device drives the damping piston (2) and opens a flow passage where the damping piston is located;

the temperature control device comprises a temperature control shell (71), wherein a temperature sensing medium (72) and a temperature control rod (73) are arranged in the temperature control shell (71), the temperature sensing medium (72) drives the temperature control rod (73) and the temperature control shell (71) to move relatively through volume change, and driving of the damping piston is achieved.

Technical Field

The invention belongs to the technical field of domestic water, and particularly relates to a delay water outlet valve for a pipe-in-pipe and a hot water discharge system thereof.

Background

The pipe-in-pipe pipeline consists of a pipe-in-pipe and a pipe-in-pipe joint, and both the pipe-in-pipe and the pipe-in-pipe joint are formed by a pipe-in-pipe inner pipe forming an inner flow passage and a pipe-in-pipe outer pipe forming an outer flow passage.

The utility model discloses a utility model patent with application number CN201820054377.9 discloses a hot water circulating system, it is including the water heater, circulating pump, the originated valve of non-return type, the hot-water line who comprises hot-water line and coupling and the tail valve of connecting external equipment that connect gradually. The liquid inlet end of the circulating pump is connected with the output end of the water heater, and the output end of the circulating pump is connected with the non-return starting valve; a hot water flow passage communicated with the liquid inlet cavity of the starting valve and a water return flow passage communicated with the return cavity of the starting valve are arranged in the hot water pipe, and the hot water pipes are mutually connected through pipe joints; the liquid outlet end of the hot water pipe is provided with a tail valve, the tail valve comprises a tail valve body, a tail valve liquid inlet cavity communicated with a hot water flow passage and a tail valve backflow cavity communicated with a backwater flow passage are arranged in the tail valve body, and the tail valve liquid inlet cavity and the tail valve backflow cavity can be communicated with external equipment. The invention has the characteristics of energy saving, environmental protection, convenient pipeline layout, low cost, quick water outlet and the like.

The hot water circulation system is mainly applied to places with large hot water demand, such as villas, hotels, collective dormitories and the like. When the demand of hot water is smaller, the hot water is not required to be recycled in order to save resources. Even like this, the hot-water velocity of going out has improved a lot more to pipe-in-pipe pipeline compares ordinary pipeline, but, because it is not high to use hot water frequency, the hot water of inside and outside runner also cools off easily, when we meet the small demand water such as washing hand, face, still can not in time experience hot water. Therefore, the applicant further shortens the liquid outlet time of the hot water by delaying the liquid outlet of the inner flow passage or the outer flow passage, and provides a better water using experience for users.

The utility model discloses a utility model with application number CN201820054377.9 discloses a delay valve, it is including the valve body that has oil feed chamber and oil cavity, the oil-out that leads to the oil mouth one and be linked together with the oil cavity that is linked together with the oil feed chamber has on the valve body, the oil cavity that produces is equipped with the piston that falls into upper portion chamber and lower part chamber with the oil cavity, oil inlet and the oil gallery that has intercommunication upper portion chamber and lower part chamber on the piston, the oil feed chamber is linked together with the lower part chamber, and the one end that the piston is located the lower part chamber is equipped with the leather cup that supports and lean on the oil gallery and close the oil gallery, and the upper portion intracavity is equipped with the elastic component, and piston formula structure as an organic whole, the one end that the piston is located the lower part chamber is fixed with the sealing member, and the piston can remove and make the.

Although the above structure discloses a delay structure, there are the following problems:

1. the structure is only suitable for delaying liquid outlet in a single channel and is not suitable for being applied to a pipe-in-pipe;

2. the liquid outlet hole of the structure is arranged on the piston, is only suitable for small-amount liquid outlet and is not suitable for being applied to a water pipe;

3. the hydraulic pressure chamber has certain pressure, no matter low pressure sealing state or high pressure open mode, all can be through the piston effect spring, and the spring is in operating condition all the time, influences the life of spring.

Disclosure of Invention

The invention aims to provide a delay water outlet valve which is simple in structure and can quickly discharge hot water and a hot water discharge system thereof.

The purpose of the invention is realized as follows:

a delay water outlet valve for a pipe-in-pipe comprises a valve body, wherein a liquid outlet end and a pipe-in-pipe connecting end are arranged on the valve body, an inner runner of a communicating pipe-in-pipe inner pipe and an outer runner of a communicating pipe-in-pipe outer pipe are arranged on the pipe-in-pipe connecting end, and the liquid outlet end is communicated with the inner runner and the outer runner through an inner cavity of the valve body;

the inner side of the pipe-in-pipe connecting end is provided with a delay sealing part for separating an inner runner from an outer runner, the inner cavity of the valve body is provided with a damping piston and a first reset piece for providing elasticity, and the damping piston is arranged on the outer side wall or the inner side wall of the delay sealing part and realizes the sealing of the outer runner or the inner runner;

when the internal medium pushes the damping piston to separate the delay sealing part, the delayed liquid outlet of the flow passage where the damping piston is located is realized.

Preferably, a damping cavity is arranged in the valve body, the damping piston and the first reset piece are arranged in the damping cavity, and a damping adjusting flow passage communicated with the inner cavity of the valve body is further arranged in the damping cavity.

Preferably, a piston guide rod is arranged in the valve body, and the piston guide rod is provided with a middle flow passage which communicates the inner flow passage and the outer flow passage with the liquid outlet end; the damping cavity is arranged between the piston guide rod and the inner wall of the valve body or inside the piston guide rod.

Preferably, the damping adjusting flow passage is provided with a damping adjusting hole or a damping adjusting groove on the piston guide rod/damping piston, or is a damping gap arranged between the end of the damping piston and the piston guide rod.

Preferably, a damping adjusting piece is arranged in the valve body, the inner end of the damping adjusting piece is arranged on the damping adjusting flow passage, the size of the damping adjusting flow passage is controlled, and the adjustment of the delay time is realized.

Preferably, a filter screen is arranged on the inner side of the damping adjusting flow passage.

Preferably, the upper end of the damping piston is provided with a first sealing member for sealing the damping chamber, or/and the inner wall of the lower end of the damping piston is provided with a second sealing member for sealing the delay sealing part.

Preferably, the valve body is provided with a connecting pipe with an internal flow passage, and the connecting pipe extends into the inner cavity of the valve body to form the delay sealing part; a plurality of outer liquid inlet holes are formed in the valve body on the outer side of the connecting pipe, and the outer liquid inlet holes form the outer flow channel.

Preferably, the outside joint of connecting pipe has movable seal cover and second piece that resets, movable seal cover is used for connecting pipe well inner tube.

Preferably, a control end is arranged between the pipe-in-pipe connecting end and the liquid outlet end, and a control valve core and a hand wheel for driving the control valve core to rotate are arranged in the control end.

Preferably, the valve body includes the last valve body that is provided with liquid outlet end and control end and is provided with the lower valve body of pipe-in-pipe connection end, the lateral wall of lower valve body is provided with the threaded connection portion of connecting pipe-in-pipe line way and drives its pivoted clamping part.

Preferably, the pipe-in-pipe connecting end comprises a connecting sleeve which is arranged at the end part of the valve body in a split mode, the middle of the connecting sleeve is provided with the delay sealing part and forms an inner flow channel, the periphery of the connecting sleeve is provided with a plurality of outer liquid inlet holes which form an outer flow channel, and the connecting sleeve is abutted between the pipe-in-pipe inner pipe and the damping piston.

Preferably, at least one backflow hole is formed in the sealing end of the damping piston, and a water return sheet is arranged on the outer side of the backflow hole.

Preferably, a piston bracket is arranged on the damping piston, and the piston bracket comprises an upper bracket arranged in the damping cavity and a lower bracket for mounting the damping piston; when the damping piston seals the outer flow passage, the piston support is provided with a liquid passing hole.

The utility model provides a hot water discharge system, includes water heater, feed liquor valve and pipe-in-pipe pipeline, the branch road end of pipe-in-pipe pipeline install through pipe-in-pipe joint delay outlet valve.

Preferably, a temperature control device is further arranged in the valve body, and when the temperature control device senses hot water, the temperature control device drives the damping piston and opens the flow passage;

the temperature control device comprises a temperature control shell, wherein a temperature sensing medium and a temperature control rod are arranged in the temperature control shell, the temperature sensing medium drives the temperature control rod and the temperature control shell to move relatively through volume change, and driving of the damping piston is achieved.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

1. the invention seals the inner runner and the outer runner through the damping piston, and preferentially seals the outer runner with larger sectional area. When a user uses water, the inner flow passage preferentially discharges water, and the water discharging speed is high because the amount of cold water in the inner flow passage is small. At this time, if water is used for a short time, the outer flow passage is not normally opened, so that cold water discharge of a part of the outer flow passage can be saved and the time for discharging the part of cold water can be saved. After a certain time, the medium of outer runner can slowly drive the damping piston and open outer runner, and outer runner and interior runner go out water together, and the hot water of outer runner can be with the hot water of interior runner originally, and the temperature is moderate, can not influence user's use, just can experience the hot water of normal water yield among several seconds, can satisfy the water of big demand. In the process, the cold water of the external flow passage which needs to be emptied originally is utilized, and the waste of water resources is reduced.

2. The invention is provided with a damping cavity, a damping adjusting flow passage is arranged in the damping cavity, and the invention aims to accurately control the moving speed of a damping piston and realize delayed liquid discharge.

3. The damping adjusting flow passage is provided with the damping adjusting piece, so that the delay time can be conveniently adjusted at any time according to needs, and the operation is convenient.

4. The damping piston is provided with the backflow hole and the backflow sheet, so that when the inner flow channel is high in pressure, backflow can be relieved, and equipment and an exhaust system are protected.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the delayed liquid outlet of the outer flow passage according to the present invention.

Fig. 2 is one of the cross-sectional views of the first embodiment of the present invention.

Fig. 3 is a second cross-sectional view of the first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a second embodiment of the delayed liquid outlet of the outer flow passage according to the present invention.

Fig. 5 is a cross-sectional view of a second embodiment of the invention.

Fig. 6 is an exploded view of a second embodiment of the present invention.

Fig. 7 is a reference view showing a sealing state of the third embodiment of the delayed liquid-discharging of the outer flow passage of the present invention.

Fig. 8 is a reference view showing an opened state of the third embodiment of the delayed liquid-discharging of the outer flow path of the present invention.

Fig. 9 is a cross-sectional view of the damper adjustment flow passage at a-a in fig. 7.

Fig. 10 is a schematic structural diagram of a fourth embodiment of the delayed liquid outlet of the outer flow passage.

Fig. 11 is a cross-sectional view of the piston holder at B-B in fig. 10.

FIG. 12 is a schematic structural diagram of a fifth embodiment of the delayed liquid outlet of the inner flow passage according to the present invention.

Fig. 13 is a schematic view showing the construction of the hot water discharge system of the present invention.

Fig. 14 is a schematic structural view of a thermostatic valve according to a first embodiment of the present invention.

Fig. 15 is a sectional view of a thermo-valve of the first kind of the present invention.

Fig. 16 is a schematic view of the mounting structure of the temperature control device of the present invention.

The reference numerals in the figures denote the meanings:

1-a valve body; 2-a damping piston; 3-a first restoring member; 4-a delay seal;

11-liquid outlet end; 12-tube-in-tube connection end; 13-a control terminal; 14-inner flow channel; 15-outer flow channel; 16-outer liquid inlet hole; 17-a valve core; 18-a hand wheel;

21-a damping chamber; 22 a-a damping adjustment orifice; 22 b-damping adjustment grooves; 23-a piston guide rod; 24-an intermediate flow channel;

25-a damping adjustment; 26-a filter screen; 27-a first seal; 28-a second seal;

31-a connecting tube; 32-sealing sleeve; 33-a second restoring member;

41-an upper valve body; 42-a lower valve body; 43-a threaded connection; 44-a clamping portion;

51-a connecting sleeve; 52-a backflow hole; 53-a backwater tablet;

61-a piston holder; 62-liquid passing hole;

71-temperature controlled housing; 72-temperature sensitive medium; 73-temperature control rod; 74-temperature control mounting seat; 74 a-seat body; 74 b-a support; 75-a latch;

81-small liquid inlet holes; 82-reflux orifice; 83-a water return part; 84-inner tube mounting; 85-inner flow hole;

100-delayed outlet valve; 101-a water heater; 102-a liquid inlet valve; 103-pipe-in-pipe line; 104-tube-in-tube inner tube; 105-tube-in-tube outer tube; 106-delay temperature control valve; 111-hot water pipe; 112-cold water pipe.

Detailed Description

The invention is further described below with reference to specific examples:

[ DELAYED WATER-OUTLET VALVE ]