Pressure and temperature release protection device of multi-safety protection water tank

Abstract

The invention discloses a pressure and temperature release protection device of a multi-safety protection water tank. The pressure and temperature release protection device comprises a water inlet connecting pipe and a valve body shell. The valve body shell is provided with a first cavity and a second cavity, a water outlet is formed in one side of the first cavity, the first cavity and the second cavity are communicated through a pressure relief opening, and the water inlet connecting pipe is installed at the bottom of the second cavity in a threaded connection mode. A sealing cover assembly is arranged at the top of the first cavity, a sealing assembly is arranged in the first cavity, a spring is further arranged in the first cavity, the top end of the spring abuts against the sealing cover assembly, and the sealing assembly abuts against the pressure relief opening through the bottom end of the spring; a water outlet pipe is arranged on the water inlet connecting pipe and is communicated with the water inlet connecting pipe. According to the pressure and temperature release protection device of the multi-safety protection water tank, the situation that the pressure exceeds the rated bearing load can be effectively avoided, the temperature release function is added, the risk that the pressure is instantaneously expanded due to the high temperature is reduced, meanwhile, the use efficiency is improved through the rotatable water outlet, and the safety and use convenience of the water tank are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pressure-temperature release protection devices, and in particular refers to a pressure-temperature release protection device for a multiple safety protection water tank. Background Art

[0002] In the boiler / water heater system, the safety and efficiency of the water tank are of vital importance. Currently, the conventional safety protection devices used in the water tank of the boiler / water heater system on the market have many problems that need to be solved.

[0003] First, in terms of safety protection functions, conventional safety protection devices generally only have a simple pressure release function, which is relatively simple and cannot meet the needs of complex and changing usage scenarios. Moreover, the accuracy of its pressure release is poor, and it is difficult to accurately control the pressure. It is impossible to ensure that the pressure does not exceed the rated load of the water tank. The pressure cannot be constant within the safe range, which poses a safety hazard. At the same time, these devices lack temperature regulation functions. When the water tank continues to be high in temperature, they cannot effectively reduce the temperature, and cannot avoid the risk of instantaneous expansion of the water tank pressure due to high temperature. They cannot provide comprehensive safety protection for the water tank. Moreover, the high pressure caused by high temperature makes it easier for the inside of the water tank to expand.

[0004] Secondly, when users want to take water directly from the boiler / water heater or draw water for use, they often need to open a new water outlet on the water tank, which is not only inconvenient to operate and costly, but also from the perspective of the efficiency of the water tank on the boiler or water heater system, under conventional designs, the water tank has too many water outlets, which leads to poor insulation effect and reduces the thermal efficiency of the system. Summary of the invention

[0005] In order to overcome the problems of the prior art, the present invention designs a pressure and temperature release protection device for a water tank with multiple safety protections, which can accurately control the water tank pressure and release the pressure, effectively preventing the pressure from exceeding the rated bearing load, and also adds a temperature release function to reduce the risk of instantaneous pressure expansion due to high temperature. At the same time, by adding a rotatable water outlet, the water tank utilization efficiency is improved, and the safety and convenience of use of the water tank are improved.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a pressure and temperature release protection device for a multiple safety protection water tank, comprising a water inlet pipe and a valve body shell; the valve body shell is provided with a first chamber and a second chamber, a drain outlet is provided on one side of the first chamber, the first chamber and the second chamber are connected through a pressure relief port, and the water inlet pipe is installed on the bottom of the second chamber through a threaded connection; a cover assembly is provided on the top of the first chamber, a sealing assembly is provided in the first chamber, and a spring is also provided in the first chamber, the top end of the spring abuts against the cover assembly, and the bottom end of the spring presses the sealing assembly against the pressure relief port; a water outlet pipe is provided on the water inlet pipe, and the water inlet pipe is connected with the water outlet pipe.

[0007] Furthermore, the water outlet pipe comprises a rotating cylinder, a through hole is provided on the middle side of the water inlet pipe, the rotating cylinder is sleeved on the water inlet pipe, and sealing rings are provided at both upper and lower ends of the through hole.

[0008] Furthermore, a lifting and pressure relief assembly is provided on the top of the valve body shell, and the lifting and pressure relief assembly includes a lifting rod and a lifting handle. The lifting rod extends from the top of the valve body shell into and passes through the sealing assembly. The bottom end of the lifting rod is connected to the sealing assembly, and the top end of the lifting rod is rotatably connected to the lifting handle.

[0009] Furthermore, it also includes a temperature sensing probe, which is fixedly installed in the water inlet pipe, the temperature sensing probe is coaxial with the pressure relief port, and the telescopic probe of the temperature sensing probe is against the bottom of the sealing assembly.

[0010] Furthermore, a pressure relief nut is threadedly connected to a side of the first chamber away from the drain outlet; an external thread is provided at one end of the pressure relief nut, a rubber gasket is installed at the end of the pressure relief nut with the external thread, a locking nail is inserted from the inside to the outside of the through hole of the rubber gasket, a pressure relief hole is provided on one side of the pressure relief nut, a retaining ring is provided at the end of the pressure relief nut away from the rubber gasket, and the end of the locking nail extends into the pressure relief nut and is inserted into the retaining ring.

[0011] Furthermore, the sealing cover assembly includes a fixing nut, a pressure regulator and a top cover, the top of the first chamber is threadedly connected to the fixing nut, the inner side of the fixing nut is threadedly connected to the pressure regulator, a through hole is provided in the center of the pressure regulator for the lifting rod to pass through, the top of the spring rests on the pressure regulator, and a hexagonal countersunk hole is provided on the top of the pressure regulator.

[0012] The beneficial effects of the pressure and temperature release protection device of the multiple safety protection water tank of the present invention are as follows: accurately control the water tank pressure, when the pressure reaches the preset value, the sealing component automatically opens to release pressure, and closes and resets after the pressure is reduced, to ensure that the pressure does not exceed the rated load of the water tank; the temperature sensing probe senses the water temperature, and when the temperature is high, the sealing component is lifted to release hot water to cool down and reduce the pressure, to avoid instantaneous expansion of the water tank pressure due to high temperature; the device adds a rotatable water outlet, reduces the number of water outlets in the water tank, improves the thermal efficiency of the system and the thermal insulation effect of the water tank; the water outlet pipe can rotate 360° and can discharge water in different directions, which is convenient for users to easily take water from different positions; the lifting and pulling pressure relief component can manually and quickly release pressure by pushing the lifting handle upwards in an emergency; when the drain outlet is blocked, the pressure relief nut automatically releases pressure, the locking nail pops out to drain, and is blocked by the retaining ring to avoid loss, so as to facilitate reset; the pressure regulator in the rotating cover assembly can change the compression length of the spring and adjust the pressure threshold that triggers the pressure relief to meet different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a pressure and temperature release protection device of a multiple safety protection water tank of the present invention;

[0014] Figure 2 It is a cross-sectional view of a pressure and temperature release protection device of a multiple safety protection water tank of the present invention.

[0015] Among them, 1-water inlet pipe, 2-valve body shell, 21-drain port, 22-first chamber, 23-second chamber, 24-pressure relief port, 25-sealing assembly, 26-spring, 4-cover assembly, 41-fixing nut, 42-pressure regulator, 43-top cover, 5-water outlet pipe, 51-rotating cylinder, 6-lifting pressure relief assembly, 61-lifting rod, 62-lifting handle, 7-temperature sensing probe, 71-telescopic probe, 8-pressure relief nut, 81-rubber gasket, 82-locking nail, 83-pressure relief hole, 84-retaining ring. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1-2As shown, the present invention is a pressure and temperature release protection device for a multiple safety protection water tank, comprising a water inlet pipe 1 and a valve body shell 2; the valve body shell 2 is provided with a first chamber 22 and a second chamber 23, one side of the first chamber 22 is provided with a drain port 21, the first chamber 22 and the second chamber 23 are connected through a pressure relief port 24, and the water inlet pipe 1 is installed at the bottom of the second chamber 23 through a threaded connection; a cover assembly 4 is provided on the top of the first chamber 22, a sealing assembly 25 is provided in the first chamber 22, and a spring 26 is also provided in the first chamber 22, the top end of the spring 26 abuts against the cover assembly 4, and the bottom end of the spring 26 presses the sealing assembly 25 against the pressure relief port 24; a water outlet pipe 5 is provided on the water inlet pipe 1, and the water inlet pipe 1 is connected with the water outlet pipe 5.

[0018] Furthermore, the water outlet pipe 5 comprises a rotating cylinder 51, a through hole is provided on the middle side of the water inlet pipe 1, the rotating cylinder 51 is sleeved on the water inlet pipe 1, and sealing rings are provided at both upper and lower ends of the through hole. The water outlet pipe 5 can rotate to discharge water in different directions.

[0019] Furthermore, a lifting pressure relief assembly 6 is provided at the top of the valve body shell 2, and the lifting pressure relief assembly 6 includes a lifting rod 61 and a lifting handle 62. The lifting rod 61 extends from the top of the valve body shell 2 into the cover assembly 4, the bottom end of the lifting rod 61 is connected to the sealing assembly 25, and the top end of the lifting rod 61 is rotatably connected to the lifting handle 62. When the lifting handle 62 is pushed upward, the lifting handle 62 pulls up the lifting rod 61, and the lifting rod 61 pulls up the sealing assembly 25, and the water in the second chamber 23 enters the first chamber 22 through the pressure relief port 24, and is finally discharged from the drain port 21.

[0020] Furthermore, it also includes a temperature sensing probe 7, which is fixedly installed in the water inlet pipe 1, the temperature sensing probe 7 is coaxial with the pressure relief port 24, and the telescopic probe 71 of the temperature sensing probe 7 is against the bottom of the sealing component 25. When the water temperature rises, the temperature sensing probe 7 expands due to the heat, pushing the telescopic probe 71 upward, and the telescopic probe 71 pushes the sealing component 25 upward; when the temperature is high enough, the sealing component 25 is pushed open to discharge water, thereby reducing the temperature and pressure.

[0021] Furthermore, a pressure relief nut 8 is connected to the side of the first chamber 22 away from the drain port 21 through a thread; one end of the pressure relief nut 8 is provided with an external thread, and a rubber gasket 81 is installed on the end of the pressure relief nut 8 with the external thread, and a locking nail 82 is inserted from the inside to the outside at the through hole of the rubber gasket 81, and a pressure relief hole 83 is provided on one side of the pressure relief nut 8, and a retaining ring 84 is provided on the end of the pressure relief nut 8 away from the rubber gasket 81, and the end of the locking nail 82 extends into the pressure relief nut 8 and is inserted into the retaining ring 84. When the drain port 21 is blocked, the auxiliary pressure relief nut 8 can replace and complete the pressure relief operation, and the high pressure forces the rubber gasket 81 to deform and then the locking nail 82 pops out, and water flows out from the pressure relief hole 83 to automatically release the pressure inside the device, and the popped-out locking nail 82 is blocked by the retaining ring 84 to avoid loss and facilitate resetting.

[0022] Furthermore, the capping assembly 4 includes a fixing nut 41, a pressure regulator 42 and a top cover 43. The top of the first chamber 22 is connected to the fixing nut 41 by threads, and the inner side of the fixing nut 41 is connected to the pressure regulator 42 by threads. The center of the pressure regulator 42 is provided with a through hole for the lifting rod 61 to pass through, and the top of the spring 26 is against the pressure regulator 42. A hexagonal countersunk hole is provided on the top of the pressure regulator 42. By turning the pressure regulator 42 with an inner hexagonal wrench, the compression length of the spring 26 can be changed to adjust the pressure threshold for triggering pressure relief.

[0023] The beneficial effects of the pressure and temperature release protection device of the multiple safety protection water tank of the present invention are as follows: accurately control the water tank pressure, when the pressure reaches the preset value, the sealing component automatically opens to release pressure, and closes and resets after the pressure is reduced, to ensure that the pressure does not exceed the rated load of the water tank; the temperature sensing probe senses the water temperature, and when the temperature is high, the sealing component is lifted to release hot water to cool down and reduce the pressure, to avoid instantaneous expansion of the water tank pressure due to high temperature; the device adds a rotatable water outlet, reduces the number of water outlets in the water tank, improves the thermal efficiency of the system and the thermal insulation effect of the water tank; the water outlet pipe can rotate 360° and can discharge water in different directions, which is convenient for users to easily take water from different positions; the lifting and pulling pressure relief component can manually and quickly release pressure by pushing the lifting handle upwards in an emergency; when the drain outlet is blocked, the pressure relief nut automatically releases pressure, the locking nail pops out to drain, and is blocked by the retaining ring to avoid loss, so as to facilitate reset; the pressure regulator in the rotating cover assembly can change the compression length of the spring and adjust the pressure threshold that triggers the pressure relief to meet different needs.

[0024] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual content is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. A pressure and temperature release protection device for a multi-safety protection water tank, characterized in that: The invention comprises a water inlet pipe (1) and a valve body shell (2); the valve body shell (2) is provided with a first chamber (22) and a second chamber (23); a drain port (21) is provided on one side of the first chamber (22); the first chamber (22) and the second chamber (23) are connected via a pressure relief port (24); the water inlet pipe (1) is installed at the bottom of the second chamber (23) via a threaded connection; a cover assembly (4) is provided at the top of the first chamber (22); a sealing assembly (25) is provided in the first chamber (22); a spring (26) is also provided in the first chamber (22); the top end of the spring (26) abuts against the cover assembly (4); the bottom end of the spring (26) presses the sealing assembly (25) against the pressure relief port (24); a water outlet pipe (5) is provided on the water inlet pipe (1); the water inlet pipe (1) is connected with the water outlet pipe (5).

2. The pressure and temperature release protection device for a multi-safety protection water tank according to claim 1, characterized in that: The water outlet pipe (5) comprises a rotating cylinder (51), a through hole is provided on the middle side of the water inlet pipe (1), the rotating cylinder (51) is sleeved on the water inlet pipe (1), and sealing rings are provided at both upper and lower ends of the through hole.

3. The pressure and temperature release protection device for a multi-safety protection water tank according to claim 1, characterized in that: A lifting and pressure relief assembly (6) is provided at the top of the valve body shell (2), and the lifting and pressure relief assembly (6) includes a lifting rod (61) and a lifting handle (62). The lifting rod (61) extends from the top of the valve body shell (2) and passes through the sealing assembly (4). The bottom end of the lifting rod (61) is connected to the sealing assembly (25), and the top end of the lifting rod (61) is rotatably connected to the lifting handle (62).

4. The pressure and temperature release protection device for a multi-safety protection water tank according to claim 1, characterized in that: It also includes a temperature sensing probe (7), which is fixedly installed in the water inlet pipe (1), the temperature sensing probe (7) is coaxial with the pressure relief port (24), and the telescopic probe (71) of the temperature sensing probe (7) is against the bottom of the sealing assembly (25).

5. The pressure and temperature release protection device for a multi-safety protection water tank according to claim 1, characterized in that: A pressure relief nut (8) is connected to the side of the first chamber (22) away from the drain outlet (21) through a thread; one end of the pressure relief nut (8) is provided with an external thread, and a rubber gasket (81) is installed on the end of the pressure relief nut (8) provided with the external thread, and a locking nail (82) is inserted from the inside to the outside of the through hole of the rubber gasket (81); a pressure relief hole (83) is provided on one side of the pressure relief nut (8), and a retaining ring (84) is provided on the end of the pressure relief nut (8) away from the rubber gasket (81), and the end of the locking nail (82) extends into the pressure relief nut (8) and is inserted into the retaining ring (84).

6. The pressure and temperature release protection device for a multi-safety protection water tank according to claim 3, characterized in that: The sealing cover assembly (4) includes a fixing nut (41), a pressure regulator (42) and a top cover (43); the top of the first chamber (22) is connected to the fixing nut (41) by a thread; the inner side of the fixing nut (41) is connected to the pressure regulator (42) by a thread; a through hole is provided at the center of the pressure regulator (42) for the lifting rod (61) to pass through; the top end of the spring (26) rests on the pressure regulator (42); and a hexagonal countersunk hole is provided at the top of the pressure regulator (42).

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