CN111779880A

CN111779880A - Anti-icing temperature control relief valve

Info

Publication number: CN111779880A
Application number: CN202010565401.7A
Authority: CN
Inventors: 吴剑斌; 胡以兵
Original assignee: Jiangxi Avonflow Heating Ventilation Technology Co ltd
Current assignee: Jiangxi Avonflow Heating Ventilation Technology Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-10-16

Abstract

The invention discloses an anti-icing temperature-control safety valve which comprises a valve body, wherein a support frame is arranged on one transverse side of the valve body, temperature-sensing water drainage holes are uniformly distributed in the outer portion of the support frame, a spring base is arranged inside the support frame and positioned on one side of the valve body, a rubber plug abutting against a water drainage hole of the valve body is arranged inside the spring base, the transverse section of the rubber plug is in a T shape, an overpressure copper sleeve is arranged on one side of the spring base, one end of the overpressure copper sleeve is provided with a blocking edge which is bent inwards, one end of the rubber plug is clamped inside the overpressure copper sleeve, an overpressure spring arranged on the side wall of the spring base is arranged inside the overpressure copper sleeve, a copper sleeve cap is arranged at the end of. The existing anti-freezing measures are realized by electric power support and electric control equipment, and once the power failure occurs, the electric control equipment loses the anti-freezing function, so that the equipment is frozen and damaged.

Description

Anti-icing temperature control relief valve

Technical Field

The invention relates to the field of temperature control valves, in particular to an anti-icing temperature control safety valve.

Background

During each winter freezing, the northern area has a lot of losses caused by freezing and frost cracking of equipment. A water faucet as small as a household water faucet and a machine device as large as hundreds of thousands of millions of values have a loss case caused by icing, and a picture of solar energy frozen, leaking, freezing is seen occasionally in a television program. In winter, many friends feed back the matters of frost crack of a water pump caused by icing and expansion of the wall-mounted gas boiler caused by icing, and the air energy heat pump widely popularized at present freezes the heat exchanger because of power failure and does not work in winter, and the matters of loss caused by water inlet of a compressor are often heard and heard; not to mention the northeast, the heating equipment is frozen and damaged in more than ten minutes after maintenance and stop heating. The loss caused by icing happens around people at any time.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an anti-icing temperature-control safety valve.

In order to achieve the purpose, the invention adopts the following technical scheme:

an anti-icing temperature-control safety valve comprises a valve body, wherein a support frame is arranged on one transverse side of the valve body, temperature sensing water drainage holes are uniformly distributed on the outer part of the support frame, a spring base is arranged on one side of the valve body in the support frame, a rubber plug abutting against the drain hole of the valve body is arranged in the spring base, the transverse section of the rubber plug is T-shaped, one side of the spring base is provided with an overpressure copper sleeve, one end of the overpressure copper sleeve is provided with a blocking edge which is bent inwards, one end of the rubber plug is clamped in the overpressure copper sleeve, an overpressure spring arranged on the side wall of the spring base is arranged in the overpressure copper sleeve, the temperature sensing device is characterized in that a copper sleeve cap is arranged at the end part of the overpressure copper sleeve, an adjusting screw cap is arranged at the end part of the support frame, a temperature sensing bulb with one end rotatably connected to the inner wall of the adjusting screw cap is arranged inside the support frame, and an opening spring is sleeved on the outer wall of the temperature sensing bulb.

Preferably, the loose joint is installed at the valve body top, and the loose joint top is provided with the rubber gasket, the outside threaded connection of loose joint has the 1/2 nut joint of switch-on outside water pipe.

Preferably, the thermal bulb material is paraffin, and the specific heat coefficient is 3.2X 103J/kg.25 ℃. The rubber gasket is made of EPDM.

Preferably, the valve body is made of HPB58-3, and the water flowing hole is 10 MM. The material of the spring base is PA6-GF 30%.

Preferably, the rubber buffer material is EPDM, and the hardness is 80. The overpressure spring is made of 304 stainless steel, the total height of the overpressure spring is 17MM, the number of effective turns is 6, the P value is 1N/MM, the opening spring is made of 304 stainless steel, the total height of the opening spring is 50MM, the number of effective turns is 10, and the P value is 1.15N/MM. The water inlet direction and the water outlet direction of the valve body form a 90-degree angle.

Preferably, the temperature sensing bulb controls the accurate temperature to be plus or minus 1 ℃, the maximum flow is 8L/MIN/0.1Mba, the maximum working pressure is 2Mba, and the working temperature range is minus 20 ℃ to 50 ℃.

Preferably, the temperature sensing bulb 10 controls the accurate temperature to be plus or minus 1 ℃, the maximum flow is 8L/MIN/0.1Mba, the maximum working pressure is 2Mba, and the working temperature range is minus 20 ℃ to 50 ℃.

Compared with the prior art, the invention has the beneficial effects that: the existing anti-freezing measures are all realized by electric power support and electric control equipment. Once meeting the condition of outage, automatically controlled equipment will lose anti-freezing function, the condition that the freezing damaged equipment appears. The product overcomes the defect, can be automatically opened and closed according to the temperature without a power supply, and the opening state is controlled along with the temperature of the internal fluid, so that the anti-freezing effect can be achieved, and the excessive fluid cannot be wasted.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a graph showing the characteristic of the thermal bulb according to the present invention.

In the figure: 1. 1/2 nut joint, 2 rubber gasket, 3 loose joint, 4 valve body, 5 spring base, 6 rubber plug, 7 overpressure copper sleeve, 8 overpressure spring, 9 copper sleeve cap, 10 temperature sensing bulb, 11 adjusting screw cap, 12 supporting frame, 13 opening spring, 14 temperature sensing water discharging hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

The utility model provides an anti-icing temperature control relief valve, includes valve body 4, the horizontal one side of valve body 4 is provided with support frame 12, the equipartition has the temperature sensing hole 14 that drains on the support frame 12 outside, support frame 12 is inside to be located 4 one sides of valve body and installs

spring frame

5, 5 inside rubber buffer 6 that support leaned on 4 discharge orifices of valve body that is provided with of spring frame, and 6 transverse section of rubber buffer are "T" font, 5 one side of spring frame is provided with excessive

pressure copper sheathing

7, 7 one end of excessive pressure copper sheathing is provided with the fender edge of buckling inwards, and 6 one end joints of rubber buffer inside excessive

pressure copper sheathing

7, 7 inside overvoltage spring 8 of installing on 5 lateral walls of spring frame that are equipped with of excessive pressure copper sheathing, 5 spacing rubber buffer 6 of spring frame keep the positive center, do not squint sealed face, the excircle with open. One end of the rubber plug 6 is sealed, the outer diameter of the rubber plug is generally larger than that of the water flow hole, and the other end of the rubber plug is connected with the overpressure spring 8. When the temperature of the overpressure spring 8 is higher than 4 ℃, the overpressure spring 8 is started to be compressed to prevent the product from being damaged due to temperature rise because the temperature sensing bulb 10 continues to expand along with the rise of the temperature.

The end part of the overvoltage copper sleeve 7 is provided with a copper sleeve cap 9, the end part of the support frame 12 is provided with an adjusting screw cap 11, the support frame 12 is internally provided with a temperature sensing bulb 10 with one end rotatably connected to the inner wall of the adjusting screw cap 11, and the outer wall of the temperature sensing bulb 10 is sleeved with an opening spring 13. Loose joint 3 is installed at 4 tops of valve body, and the loose joint 3 top is provided with rubber gasket 2, the outside threaded connection of loose joint 3 has 1/2 nut joint 1 of the outside water pipe of switch-on. The 1/2 nut connector 1 is connected with the box body, and the connection mode can be customized according to users. The rubber gasket 2 mainly plays a role of sealing after 1/2 nut joints are connected with the water tank.

The material of the thermal bulb 10 is paraffin, and the specific heat coefficient is 3.2 multiplied by 103J/kg.25 ℃. The rubber gasket 2 is made of EPDM. The valve body 4 is made of HPB58-3, and the water flow hole is 10 MM. The material of the spring base 5 is PA6-GF 30%. Rubber buffer 6 material is EPDM, and the hardness is 80. The overpressure spring 8 is made of 304 stainless steel, the total height is 17MM, the number of effective turns is 6, the P value is 1N/MM, the opening spring 13 is made of 304 stainless steel, the total height is 50MM, the number of effective turns is 10, and the P value is 1.15N/MM. The water inlet direction and the water outlet direction of the valve body 4 form an angle of 90 degrees. An anti-icing temperature-controlled safety valve is typically mounted at the lowest level of the tank so that the fluid can be drained. The valve body 4 may be installed horizontally or vertically.

The temperature sensing bulb 10 controls the accurate temperature to be plus or minus 1 ℃, the maximum flow is 8L/MIN/0.1Mba, the maximum working pressure is 2Mba, and the working temperature range is minus 20 ℃ to 50 ℃. The maximum load of the thermal bulb (10) is 180N, the initial load is 50N, the elastic rigidity is 7N/MM, and the use temperature range is-30 ℃ to 100 ℃. The adjusting screw cap 11 is used for adjusting the starting temperature and the closing temperature, and the product is put into the water adjusting screw cap 11 with the temperature of 4 ℃ until being closed and then put into the water with the temperature of 2 ℃ for starting and adjusting in place. The support frame 12 supports the adjusting screw cap 11, the temperature sensing bulb 10, the spring base 5 and the like, and the support frame 12 is provided with a plurality of temperature sensing water discharging holes 14 for fully sensing the environmental temperature. When the temperature of the opening spring 13 is lower than 4 ℃, the volume of the thermal bulb 10 is shrunk, the overpressure spring 8 is completely released, the opening spring 13 supports the rubber plug 6, and the valve is opened to discharge fluid.

The stroke is controlled by the material with the temperature sensing bulb 10 having a larger specific heat coefficient and the temperature sensing environment temperature according to the principle of expansion with heat and contraction with cold. The opening and closing states of the valve are calibrated by adjusting the screw cap 11, the opening spring 13 is specially matched due to the self gravity of the combination of the temperature sensing bulb 10 and the overpressure ejector rod, and the valve is opened by the tension of the opening spring 13 when the temperature is lower than 4 ℃.

When the temperature of the outdoor air is gradually reduced, the temperature of the anti-icing temperature control safety valve is also reduced along with the temperature. When the integral temperature of the anti-icing temperature control safety valve is reduced to 4 ℃ and continuously reduced, the original normally closed internal valve can be gradually opened, fluid in a pipeline connected with the temperature control safety valve can be discharged out of the pipeline through the temperature control safety valve from slow to fast, the fluid in the pipeline begins to flow, and the anti-icing function is started. When the temperature of the fluid from the indoor or the underground is higher than that of the fluid from the outdoor flowing through the anti-icing temperature control safety valve, the temperature of the pipeline can be gradually increased to prevent icing; if the temperature drops rapidly and the temperature of the fluid is not increased but continuously drops, the opening degree of the anti-icing safety valve is increased; when the temperature of the valve body is reduced to 2 ℃, the valve body reaches the maximum opening degree, and the internal fluid continuously flows out in large quantity until the valve body is emptied; if the heat of the discharged fluid exceeds the heat dissipated by the temperature drop, the temperature of the anti-icing safety valve can slowly rise; when the temperature of the valve body of the anti-icing temperature-control safety valve gradually approaches 4 ℃, the valve can be gradually closed from full opening and is completely closed when the temperature reaches 4 ℃.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an anti-icing temperature-sensing relief valve, includes valve body (4), its characterized in that: the valve body (4) is transversely provided with a support frame (12) on one side, the support frame (12) is externally provided with a temperature-sensing water drainage hole (14) on the uniform distribution, the support frame (12) is internally positioned on one side of the valve body (4) and is provided with a spring seat (5), the spring seat (5) is internally provided with a rubber plug (6) which is abutted against a water drain hole of the valve body (4), the transverse section of the rubber plug (6) is T-shaped, one side of the spring seat (5) is provided with an overvoltage copper bush (7), one end of the overvoltage copper bush (7) is provided with a blocking edge which is bent inwards, one end of the rubber plug (6) is clamped inside the overvoltage copper bush (7), the overvoltage copper bush (7) is internally provided with an overvoltage spring (8) arranged on the side wall of the spring seat (5), the end of the overvoltage copper bush (7) is provided with a copper bush cap, the temperature sensing bulb is characterized in that a temperature sensing bulb (10) with one end rotatably connected to the inner wall of the adjusting screw cap (11) is arranged in the support frame (12), and an opening spring (13) is sleeved on the outer wall of the temperature sensing bulb (10).

2. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: loose joint (3) is installed at valve body (4) top, and loose joint (3) top is provided with rubber gasket (2), the outside threaded connection of loose joint (3) has 1/2 nut joint (1) of switch-on outside water pipe.

3. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the material of the thermal bulb (10) is paraffin, and the specific heat coefficient is 3.2 multiplied by 103J/(kg.25 ℃).

4. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the rubber gasket (2) is made of EPDM.

5. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the valve body (4) is made of HPB58-3, and the water flow hole is 10 MM.

6. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the spring base (5) is made of PA6-GF 30%.

7. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the rubber stopper (6) is made of EPDM, and the hardness is 80.

8. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the overpressure spring (8) is made of 304 stainless steel, the total height is 17MM, the number of effective turns is 6, the P value is 1N/MM, the opening spring (13) is made of 304 stainless steel, the total height is 50MM, the number of effective turns is 10, and the P value is 1.15N/MM.

9. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the water inlet direction and the water outlet direction of the valve body (4) form an angle of 90 degrees.

10. An anti-icing temperature-controlled safety valve according to claim 1, characterized in that: the temperature sensing bulb (10) controls the accurate temperature to be plus or minus 1 ℃, the maximum flow is 8L/MIN/0.1Mba, the maximum working pressure is 2Mba, and the working temperature range is minus 20 ℃ to 50 ℃.