CN212839577U

CN212839577U - Safety relief valve

Info

Publication number: CN212839577U
Application number: CN202020705962.8U
Authority: CN
Inventors: 王涛; 王庆华; 费林博
Original assignee: Shandong Longpu Solar Energy Co ltd
Current assignee: Shandong Longpu Solar Energy Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-03-30
Anticipated expiration: 2030-04-30

Abstract

A safety relief valve consists of a safety relief valve body, an elbow shell, an external thread joint, an eyelet nut, a safety relief valve handle, an exhaust hole joint, an exhaust hole, a safety relief valve core rod, a safety relief valve hole, a valve core fixing block, a medium inlet, a medium outlet, a sealing piston, an eyelet fastener and a safety relief spring; the safety relief valve body is arranged above the elbow shell and is provided with a safety relief valve hole; the spring and the core rod are arranged in a safe pressure relief valve hole in the valve body and are fixed by the valve core; a movable joint fastener provided with a medium inlet is arranged in an inner hole at the inlet end of the elbow shell and used for sleeving a movable joint nut, an inner hole at the outlet end is a medium outlet, and an external thread joint is arranged outside the inner hole; the safety relief valve handle is arranged at the upper end part of the safety relief valve core rod, and the exhaust hole joint and the exhaust hole are arranged on the side surface of the safety relief valve body. The device has the characteristics of installation space saving, simple structure, overpressure protection, convenience in installation, high safety performance, good heat supply effect and the like.

Description

Safety relief valve

Technical Field

The utility model belongs to the technical field of solar energy heat supply engineering device, in particular to be used for keeping heating system circulation medium work at the set pressure within range, possess the safety relief valve of superpressure protection and exhaust function simultaneously.

Background

At present, with the continuous improvement of the living standard of people and the rapid upgrading and updating of water heater products, various electric water heaters, split solar water heaters, pressure-bearing water heaters and solar energy heat-collecting and heat-distributing systems gradually begin to be popularized and used, and water tanks of the electric water heaters, the split solar water heaters, the pressure-bearing water heaters and the solar energy heat-distributing and heat-supplying systems are generally made into pressure-bearing water tanks, so that the proper pressure is ensured when water is supplied, the pressure requirement can be effectively met, and the electric water heater is particularly suitable for. For guaranteeing that all kinds of pressure-bearing water heaters and heating system pressure reach certain normal pressure and heat collection and supply effect, need set up the safety relief valve in the heating system pipeline, automatic pressure release when pressure is too high, can discharge when producing the long-pending gas in the pipeline, ordinary safety relief valve generally installs on heating pipeline through the tee bend, nevertheless because receive building architectural structure area restriction and people to overall arrangement and pleasing to the eye constantly promote in the residential space, make the space that solar water heater and pressure-bearing formula water heater occupy constantly reduce, also can install sometimes in narrow and small space, especially heating pipeline turn, current safety relief valve can't install and use at all.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective is: in order to overcome the shortcoming that current safety relief valve is not convenient for install and use, the security is poor, the heating effect is not good, the utility model provides a safety relief valve that both can regard as the elbow to use, can play safe pressure release again, get rid of the long-pending gas effect has sparingly installation space, simple structure, superpressure protect function, simple to operate, security performance height, characteristics such as heating effect is good.

The utility model provides a technical scheme that its technical problem adopted is: this safety relief valve, its characterized in that: the safety relief valve comprises a safety relief valve body, an elbow shell, an external thread joint, an eyelet nut, a safety relief valve handle, an exhaust hole joint, an exhaust hole, a safety relief valve core rod, a safety relief valve hole, a valve core fixing block, a medium inlet, a medium outlet, a sealing piston, an eyelet fastener and a safety relief spring; the safety relief valve body is arranged right above the side face of the elbow shell and is provided with a safety relief valve hole which is communicated with the inside of the elbow shell; the safety pressure relief spring is sleeved outside the core rod of the safety pressure relief valve, is arranged in a safety pressure relief valve hole in the valve body of the safety pressure relief valve, and is fixedly arranged by a valve core fixing block; the inner hole of the inlet end of the elbow shell is internally provided with a movable joint fastener with a medium inlet, and the movable joint fastener is used for sleeving a movable joint nut so as to be connected with a medium pipeline; an inner hole of the outlet end of the elbow shell is a medium outlet, and an external thread joint is arranged outside the outlet end so as to be connected with a medium pipeline; the safety relief valve handle is arranged at the upper end of the safety relief valve core rod, the exhaust hole joint and the exhaust hole are arranged on the side face of the valve body of the safety relief valve, and the exhaust hole is communicated with the safety relief valve hole.

The utility model has the advantages that: by adopting the safety relief valve with the structure, the medium flows through the elbow shell from the medium inlet to the medium outlet, and when the pressure of the medium outlet is lower than the set pressure of the safety relief valve, the medium inlet and the medium outlet are kept in an unobstructed state; when the pressure of the medium outlet reaches or is higher than the set pressure of the safety relief valve, the sealing piston overcomes the elastic force of the safety relief spring to move upwards under the medium pressure of the medium inlet, the medium flows into the relief opening through the medium inlet to be discharged, and the pressure of the medium inlet and the pressure of the medium outlet are ensured to be within the set pressure range of the safety relief valve. When the pressure in the heating system is too high or the accumulated gas is generated, the handle of the safety pressure relief valve can be operated to manually relieve the pressure or eliminate the accumulated gas, so that the normal pressure and the good heating effect of the heating system are ensured. When the pressure of medium in the elbow shell increases to the pressure that the relief valve set for, the medium extrudees the safety valve core through the safety valve opening for the relief valve handle lifts and flows out from the exhaust hole, in order to reach the effect of pressure release, after pressure reduction, the relief valve handle falls down, makes the safety valve core reply to closed state, and the medium can not discharge through the exhaust hole core, forms the airtight return circuit of whole relief valve. The utility model discloses safety relief valve both can regard as the elbow to use, can play safety pressure release again, get rid of the pneumatosis effect. The pressure relief valve has an overpressure protection function, and can realize automatic pressure relief after the pressure exceeds a pressure relief set value; the pressure born by the water heater is not greater than the set pressure, and the service life of the water heater is greatly prolonged. The solar water heater has the characteristics of installation space saving, simple structure, convenience in installation, high safety performance, good heat supply effect and the like.

As the utility model discloses an improvement, safe relief valve body set up in elbow shell return bend side upper left side, the inside left side of return bend of the safe pressure relief valve opening intercommunication elbow shell that is equipped with in the safe relief valve body is located the outer return bend inner bore wall of elbow shell. When the safety relief valve is used, the safety relief valve hole in the valve body of the safety relief valve is located at the highest position of the pipeline, so that accumulated air can be more thoroughly removed.

Drawings

Fig. 1 is a schematic sectional structure view of a first embodiment of the safety relief valve of the present invention;

fig. 2 is a schematic left-hand sectional structure view of a first embodiment of the safety relief valve of the present invention shown in fig. 1;

fig. 3 is a schematic cross-sectional structure diagram of a second embodiment of the safety relief valve of the present invention;

fig. 4 is a schematic diagram of a partial sectional structure of a left-hand layer of a second embodiment of the safety relief valve of the present invention shown in fig. 3.

In the figure: 1. the safety relief valve comprises a safety relief valve body, 2, an elbow shell, 3, an external thread connector, 4, an eyelet nut, 5, a safety relief valve handle, 6, an exhaust hole connector, 7, an exhaust hole, 8, a safety relief valve core rod, 9, a safety relief valve hole, 10, a valve core fixing block, 11, a medium inlet, 12, a medium outlet, 13, a sealing piston, 14, an eyelet fastener and 15 safety relief springs.

Detailed Description

The safety relief valve is further described below with reference to the accompanying drawings and embodiments.

As shown in fig. 1 and 2, the safety relief valve comprises a safety relief valve body 1, an elbow casing 2, an external thread joint 3, an articulated nut 4, a safety relief valve handle 5, an exhaust hole joint 6, an exhaust hole 7, a safety relief valve core rod 8, a safety relief valve hole 9, a valve core fixing block 10, a medium inlet 11, a medium outlet 12, a sealing piston 13, an articulated fastener 14 and a safety relief spring 15; the safety relief valve body 1 is arranged right above the side face of the elbow shell 2, and the safety relief valve body 1 is provided with a safety relief valve hole 9 communicated with the inside of the elbow shell 2; the safety pressure relief spring 15 is sleeved outside the safety pressure relief valve core rod 8, is arranged in a safety pressure relief valve hole 9 in the safety pressure relief valve body 1, and is fixedly arranged by a valve core fixing block 10; an articulated fastener 14 provided with a medium inlet 11 is arranged in an inner hole at the inlet end of the elbow shell 2 and is used for sleeving an articulated nut 4 so as to be connected with a medium pipeline; an inner hole of the outlet end of the elbow shell 2 is a medium outlet 12, and an external thread joint 3 is arranged outside the outlet end so as to be connected with a medium pipeline; the safety relief valve handle 5 is arranged at the upper end part of the safety relief valve core rod 8, the exhaust hole joint 6 and the exhaust hole 7 are arranged on the side surface of the safety relief valve body 1, and the exhaust hole 7 is communicated with the safety relief valve hole 9.

By adopting the safety relief valve with the structure, the medium flows through the elbow shell from the medium inlet to the medium outlet, and when the pressure of the medium outlet is lower than the set pressure of the safety relief valve, the medium inlet and the medium outlet are kept in an unobstructed state; when the pressure of the medium outlet reaches or is higher than the set pressure of the safety relief valve, the sealing piston overcomes the elastic force of the safety relief spring to move upwards under the medium pressure of the medium inlet, the medium flows into the relief opening through the medium inlet to be discharged, and the pressure of the medium inlet and the pressure of the medium outlet are ensured to be within the set pressure range of the safety relief valve. When the pressure in the heating system is too high or the accumulated gas is generated, the handle of the safety pressure relief valve can be operated to manually relieve the pressure or eliminate the accumulated gas, so that the normal pressure and the good heating effect of the heating system are ensured. When the pressure of medium in the elbow shell increases to the pressure that the relief valve set for, the medium extrudees the safety valve core through the safety valve opening for the relief valve handle lifts and flows out from the exhaust hole, in order to reach the effect of pressure release, after pressure reduction, the relief valve handle falls down, makes the safety valve core reply to closed state, and the medium can not discharge through the exhaust hole core, forms the airtight return circuit of whole relief valve. The utility model discloses safety relief valve both can regard as the elbow to use, can play safety pressure release again, get rid of the pneumatosis effect. The pressure relief valve has an overpressure protection function, and can realize automatic pressure relief after the pressure exceeds a pressure relief set value; the pressure born by the water heater is not greater than the set pressure, and the service life of the water heater is greatly prolonged. The solar water heater has the characteristics of installation space saving, simple structure, convenience in installation, high safety performance, good heat supply effect and the like.

As the utility model discloses an improvement, as shown in fig. 3, the upper left side of the 2 return bends of elbow shell, the inside left side of the return bend of the 9 intercommunication elbow shell 2 of safe pressure relief valve opening that are equipped with of safe relief valve body 1 sets up at elbow shell 2 return bends, is located the outer return bend inner bore wall of elbow shell 2. When the safety relief valve is used, the safety relief valve hole 9 in the safety relief valve body 1 is located at the highest position of a pipeline, so that accumulated air can be more thoroughly removed.

Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.

Claims

1. A safety relief valve which characterized in that: the safety relief valve comprises a safety relief valve body (1), an elbow shell (2), an external thread joint (3), an eyelet nut (4), a safety relief valve handle (5), an exhaust hole joint (6), an exhaust hole (7), a safety relief valve core rod (8), a safety relief valve hole (9), a valve core fixing block (10), a medium inlet (11), a medium outlet (12), a sealing piston (13), an eyelet fastener (14) and a safety relief spring (15); the safety relief valve body (1) is arranged right above the side face of the elbow shell (2), and the safety relief valve body (1) is provided with a safety relief valve hole (9) which is communicated with the inside of the elbow shell (2); the safety pressure relief spring (15) is sleeved outside the safety pressure relief valve core rod (8), is arranged in a safety pressure relief valve hole (9) in the safety pressure relief valve body (1), and is fixedly arranged by a valve core fixing block (10); an articulated fastener (14) provided with a medium inlet (11) is arranged in an inner hole at the inlet end of the elbow shell (2) and is used for sleeving an articulated nut (4) so as to be connected with a medium pipeline; an inner hole of the outlet end of the elbow shell (2) is a medium outlet (12), and an external thread joint (3) is arranged outside the outlet end so as to be connected with a medium pipeline; the safety relief valve handle (5) is arranged at the upper end part of the safety relief valve core rod (8), the exhaust hole joint (6) and the exhaust hole (7) are arranged on the side surface of the safety relief valve body (1), and the exhaust hole (7) is communicated with the safety relief valve hole (9).

2. The safety relief valve of claim 1, wherein: the safety relief valve body (1) is arranged at the upper left side of the side face of the elbow shell (2), and a safety relief valve hole (9) arranged in the safety relief valve body (1) is communicated with the left side inside the elbow of the elbow shell (2) and is positioned on the inner wall of an outer elbow hole of the elbow shell (2).