CN203892649U

CN203892649U - Temperature and pressure safety valve

Info

Publication number: CN203892649U
Application number: CN201420281756.3U
Authority: CN
Inventors: 陈雪峰; 钟时澍; 郑奇龙
Original assignee: ZHEJIANG AMY PARTS CO Ltd
Current assignee: ZHEJIANG AMY PARTS CO Ltd
Priority date: 2014-05-29
Filing date: 2014-05-29
Publication date: 2014-10-22
Anticipated expiration: 2024-05-29

Abstract

The utility model discloses a temperature and pressure safety valve. The temperature and pressure safety valve comprises a thermo-sensitive stick, a valve body, a valve element assembly, a compressed spring, a pressure regulating screw, a sealing base, a cushion plate, an adjustment sliding rod and a spanner. The thermo-sensitive stick comprises a heat conduction copper pipe, paraffin wax, a nylon piston, a seal ring, a movable piston, an ejector rod, a compressed spring and a pressing plate. The thermo-sensitive stick is arranged inside the lower end of the valve body. Two to six supporting ribs are evenly distributed on the contact portion of the inner portion of the lower end of the valve body and the heat conduction copper pipe of the thermo-sensitive stick in the circumferential direction. A through hole is formed in the middle of each supporting rib. Two to six drainage holes are formed in each supporting rib. A shoulder portion at the upper end of the heat conduction copper pipe is attached to the end faces of the supporting ribs around the through hole inside the lower end of the valve body. The temperature and pressure safety valve has the advantages of being simple in structure, safe, reliable, good in use effect, durable in use, smooth in drainage, high in sensitivity and the like.

Description

Temperature, pressure safety valve

Technical field

The utility model relates to a kind of safety valve, especially relevant with temperature, pressure safety valve.

Background technique

When Temperature pressure valve work; temperature rise; melted paraffin wax; pressure increases; nylon piston promotes seal ring and motion stops, overcomes under the prerequisite of inner stage clip pressure at pressure, forces push rod to move outward; push rod overcomes under the prerequisite of pressure of stage clip and backs down lock screw, plays the effect of drainage pressure release cooling protection water heater.

The position of its outstanding quick rod of heat release in valve body bottom of existing temperature, pressure safety valve only has Huo Liangge Support Position, a Support Position, there is following defect: 1. insufficient strength, affect the working life of temperature, pressure safety valve, 2. drainage is not uniform, affects the sensitivity of temperature, pressure safety valve; Back down lock screw under push rod overcomes the prerequisite of pressure of stage clip time, heat-conducting copper pipe reaction is to one of the position active force of the outstanding quick rod assembly of heat release of valve body lower end, if a Support Position or two position supports, Support Position for a long time repeatedly stressed rear easy fracture cause temperature-sensitive rod assembly depart from valve component, thereby temperature, pressure safety valve entirety is scrapped; Back down lock screw under push rod overcomes the prerequisite of pressure of stage clip after, water heater inside and ambient atmosphere communicate, because internal pressure is large, the gas of water heater inside and liquid are rapidly toward effluent stream, due to a position or two temperature-sensitive rod positions that position is fixing, its mass flow discrepancy is even, causes temperature, pressure safety valve control insufficient sensitivity.

Summary of the invention

The purpose of this utility model is to provide a kind of rational in infrastructure, safe and reliable, good, long-lived temperature, pressure safety valve of using effect.

For achieving the above object, the utility model is realized by following technical solution.Temperature, pressure safety valve, comprise temperature-sensitive rod, valve body, mangetic core assembly, stage clip, pressure regulating screw, sealing seat, backing plate, regulate slide bar and spanner, temperature-sensitive rod comprises heat-conducting copper pipe, paraffin, nylon piston, seal ring, motion stops, push rod, stage clip and pressing plate, temperature-sensitive rod is located at valve body lower end inside, heat-conducting copper pipe contacting point inner in valve body lower end and temperature-sensitive rod arranges 2-6 supporting ribs that are uniformly distributed along the circumference, through hole is set in the middle of supporting rib, 2-6 drain holes are set on supporting rib, the end face of heat-conducting copper pipe upper end shoulder and valve body lower end interior bone supporting rib is around affixed.

The utility model compared with prior art has following beneficial effect: (one) is by the Position Design of the outstanding valve body lower end quick rod of heat release is arranged to through hole for be uniformly distributed along the circumference supporting rib and drain hole, centre, such structure is when stressed, there are multiple Support Positions, increase intensity, improve the reliability of product, drain hole, has improved the uniformity smoothness of drainage, has improved the sensitivity of excretion step-down cooling; (2) be that the utility model temperature, pressure safety valve can be widely used in the water heating systems such as solar energy water-heater, electric water heater, heat pump water heater, gas water-heater, fuel-oil water heater, there is the features such as rational in infrastructure, safe and reliable, using effect is good, durable in use.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model temperature, pressure safety valve.

Fig. 2 is the structural representation of the utility model temperature, pressure valve body of safety valve.

Embodiment

Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.

As shown in Figure 1, temperature, pressure safety valve, comprise temperature-sensitive rod 1, valve body 2, mangetic core assembly 3, stage clip 4, pressure regulating screw 5, sealing seat 6, backing plate 7, regulate slide bar 8 and spanner 9, temperature-sensitive rod 1 comprises heat-conducting copper pipe 10, paraffin 11, nylon piston 12, seal ring 13, motion stops 14, push rod 15, stage clip 16 and pressing plate 17, temperature-sensitive rod 1 is located at valve body 2 inside, lower end, as shown in Figure 2, in valve body 2 lower ends, heat-conducting copper pipe 10 contacting points inner and temperature-sensitive rod 1 arrange 3 supporting ribs 18 that are uniformly distributed along the circumference, through hole 19 is set in the middle of supporting rib 18, 3 drain holes 20 are set on supporting rib 18, the end face of heat-conducting copper pipe 10 upper end shoulders and valve body 2 lower end interior bone 19 supporting rib 18 is around affixed.

Claims

1. a temperature, pressure safety valve, comprise temperature-sensitive rod (1), valve body (2), mangetic core assembly (3), stage clip (4), pressure regulating screw (5), sealing seat (6), backing plate (7), regulate slide bar (8) and spanner (9), temperature-sensitive rod (1) comprises heat-conducting copper pipe (10), paraffin (11), nylon piston (12), seal ring (13), motion stops (14), push rod (15), stage clip (16) and pressing plate (17), temperature-sensitive rod (1) is located at valve body (2) inside, lower end, it is characterized in that: heat-conducting copper pipe (10) contacting point inner in valve body (2) lower end and temperature-sensitive rod (1) arranges 2-6 supporting ribs (18) that are uniformly distributed along the circumference, through hole (19) is set in the middle of supporting rib (18), 2-6 drain holes (20) are set on supporting rib (18), the end face of heat-conducting copper pipe (10) upper end shoulder and valve body (2) lower end interior bone (19) supporting rib (18) is around affixed.