Pressurized building safety valve anti-freezing structure and pressurized building
By installing an anti-freeze structure on the outside of the pressurization building, including a pressure balancing section and a dehumidification section, and by using movable plugs and desiccants, the problem of frost formation on the safety valve is solved, ensuring that the safety valve can work normally in cold environments and realizing the anti-freeze and pressure relief functions of the safety valve.
Patent Information
- Application Number
- CN202520326823.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
When pressurized buildings are used in extremely cold regions, safety valves may condense and freeze due to moisture, affecting their normal operation and causing safety hazards. Existing antifreeze measures such as insulation materials and electric heat tracing have limitations.
A safety valve is installed on the outside of the pressurized building and connected to an antifreeze structure via piping, including a pressure balancing section and a dehumidification section. Moisture diffusion is prevented by using movable plugs and desiccants, thus preventing the safety valve from frosting and ensuring normal pressure relief.
It effectively prevents the safety valve from frosting, ensures normal pressure relief, avoids safety hazards caused by moisture frosting, and does not affect the pressure relief function of the safety valve, making it suitable for cold environments.
Smart Images
Figure CN223708672U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pressurized building, concretely relates to a pressurized building safety valve anti -icing structure and pressurized building. BACKGROUND
[0002] In order to avoid the overpressure damage generated by the excessive pressure inside the pressurized building, a safety valve is generally installed on the pressurized building, the safety valve is installed outside the pressurized building and is communicated with the inside of the pressurized building through a pipeline, under the normal state, the safety valve is closed, when the indoor pressure of the pressurized building exceeds the set value, the safety valve acts, and the air is discharged outward to release pressure, thereby avoiding the overpressure damage.
[0003] Because of the factors such as the toilet and the human body that continuously disperse moisture, the humidity inside the pressurized building is greater than that outside the pressurized building, when the pressurized building is used in the extremely cold area, the moisture inside the pressurized building diffuses to the safety valve through the pipeline, therefore, the condensation and frost phenomenon is generated inside the safety valve, with the continuous accumulation of the frost phenomenon, the action of the safety valve is affected, and further, the safety hazard is generated.
[0004] When the pressurized building is used in the extremely cold area, in order to prevent the frost of the safety valve, the safety valve is generally covered with the thermal insulation material or is heated by the electric heat tracing, if the safety valve is covered with the thermal insulation material, the thermal insulation material will affect the normal air discharge after the safety valve is opened, if the safety valve is heated by the electric heat tracing, the continuous heat source needs to be provided, and the safety valve is difficult to be heated uniformly, and the frost phenomenon still exists in the local part. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a pressurized building safety valve anti -icing structure and a pressurized building comprising the structure, the structure can avoid the frost inside the safety valve and does not affect the pressure relief of the safety valve.
[0006] The utility model adopts the technical scheme that:
[0007] A pressurized building safety valve anti -icing structure, the safety valve is installed outside the pressurized building and is communicated with the inside of the pressurized building through a pipeline, the anti -icing structure is connected with the pipeline and is installed inside the pressurized building, the anti -icing structure comprises a pressure balance section and a dehumidification section, the pressure balance section is used for balancing the air pressure of the inside of the pressurized building and one side of the safety valve, a movable plug is arranged in the pressure balance section, under the normal state, the plug separates the safety valve from the indoor, when the plug acts to one side of the safety valve under the overpressure of the indoor, the indoor gas is discharged to the safety valve through the pipeline, the dehumidification section is used for drying the gas in the pipeline and leading to the safety valve, and the water vapor is prevented from freezing in the safety valve.
[0008] Further, the pressure balance section and the dehumidification section are detachably connected on the pipeline, facilitating the maintenance and replacement.
[0009] As one of the dehumidification sections: a sink is arranged on the pipeline where the dehumidification section is located, and a drying agent is placed in the sink.
[0010] As another of the dehumidification sections: an annular drying part is arranged on the inner wall of the pipeline where the dehumidification section is located, the center of the drying part is an airflow passage, and the drying part is filled with a drying agent.
[0011] Preferably, the drying agent can be one or more of silica gel, anhydrous calcium chloride, or anhydrous calcium sulfate.
[0012] As one of the pressure balance sections: a plug is arranged in sliding sealing cooperation with a piston and a pipeline where the pressure balance section is located, an enlarged tube section is arranged at the end of the travel of the piston on the pipeline where the pressure balance section is located, and when the piston falls into the enlarged tube section, the gas in the pressurized building is discharged to the safety valve through the pipeline.
[0013] Preferably, in the above scheme, the diameter of the enlarged tube section is 1.5 to 3 times the diameter of other tube sections.
[0014] As another of the pressure balance sections: the pressure balance section is a one-way valve, the pipeline where the pressure balance section is located serves as a valve body, the plug serves as a valve core, a valve seat and a spring are arranged in the valve body, a through hole is arranged on the valve seat, the valve core is located between the safety valve and the valve seat, the spring presses the valve core against the through hole of the valve seat in the normal state to close the one-way valve, and the valve core leaves the through hole of the valve seat to open the one-way valve under the action of indoor overpressure, which pushes the valve core to move by using the pressure difference to overcome the spring force.
[0015] Preferably, in the above scheme, the opening pressure difference of the one-way valve is 15 kp.
[0016] A pressurized building comprises the anti-freezing structure of the safety valve of the pressurized building.
[0017] The beneficial effects of the utility model are as follows:
[0018] The structure can avoid frost formation in the safety valve: under normal conditions, the plug separates the safety valve from the indoor environment, the moisture in the pressurized building cannot diffuse to the safety valve through the pipeline, the humidity in the safety valve is normal, frost formation is not easy even in cold regions without insulation and heating, and the dehumidification section can also dry the gas in the pipeline to further avoid frost formation.
[0019] Meanwhile, the structure does not affect the pressure relief of the safety valve: when the indoor pressure is too high, the plug moves to the side of the safety valve, the indoor gas is discharged to the safety valve through the pipeline, the safety valve can normally relieve pressure, and the dehumidification section can also dry the gas leading to the safety valve, so that newly added water vapor is prevented from causing frost. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0021] Figure 1 is a schematic diagram of the pressure-increasing building safety valve anti-freezing structure in the first embodiment of the present application.
[0022] Figure 2 is a schematic diagram of the pressure-increasing building safety valve anti-freezing structure in the second embodiment of the present application, and the safety valve is in a cut-off state with the indoor.
[0023] Figure 3 is a schematic diagram of the pressure-increasing building safety valve anti-freezing structure in the second embodiment of the present application, and the safety valve is in a conduction state with the indoor.
[0024] Figure 4 is a schematic diagram of the pressure-increasing building safety valve anti-freezing structure in the third embodiment of the present application, and the safety valve is in a cut-off state with the indoor.
[0025] Figure 5 is a schematic diagram of the pressure-increasing building safety valve anti-freezing structure in the third embodiment of the present application, and the safety valve is in a conduction state with the indoor.
[0026] In the figure: 1-safety valve; 2-pressure-increasing building; 3-dehumidification section; 4-pressure balance section; 5-sunken groove; 6-drying agent; 7-diameter expansion pipe section; 8-piston; 9-drying part; 10-air flow channel; 11-spring; 12-valve core; 13-valve seat; 14-through hole. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] The following detailed description of embodiments of the application in the drawings provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.
[0029] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.
[0031] The features and performance of the present application are further described in detail below in conjunction with the embodiments.
[0032] Embodiment one
[0033] The present embodiment discloses a pressure boosting building safety valve anti-freezing structure, as shown in Figure 1 The safety valve 1 is installed outside the pressure boosting building 2 and is in communication with the inside of the pressure boosting building 2 through a pipeline; the anti-freezing structure is connected to the pipeline and is installed inside the pressure boosting building 2; the anti-freezing structure comprises a pressure balancing section 4 and a dehumidifying section 3; the pressure balancing section 4 is used to balance the air pressure on the side of the safety valve 1 inside the pressure boosting building 2; a movable plug is arranged in the pressure balancing section 4, which separates the safety valve 1 from the indoor environment in normal state, and when the plug moves to the side of the safety valve 1 under the action of indoor overpressure, indoor gas is discharged to the safety valve 1 through the pipeline; the dehumidifying section 3 is used to dry the gas in the pipeline and leading to the safety valve 1, to avoid water vapor freezing in the safety valve 1.
[0034] In the present embodiment, as shown in Figure 1 A sinking groove 5 is provided on the pipeline where the dehumidifying section 3 is located, and a drying agent 6 is placed in the sinking groove 5, which can avoid moving and scattering in the pipeline, and the drying agent 6 is preferably one or more of silica gel, anhydrous calcium chloride or anhydrous calcium sulfate.
[0035] In the present embodiment, as shown in Figure 1As shown, the blockage is a sliding seal between the piston 8 and the pressure balance section 4 in the pipeline. The piston 8 is provided with an expansion pipe section 7 at the end of its stroke on the pipeline where the pressure balance section 4 is located. When the piston 8 falls into the expansion pipe section 7, the gas in the pressurization building 2 is discharged to the safety valve 1 through the pipeline. This scheme uses the pressure difference to push the piston 8 to move. When the piston 8 moves and falls into the expansion pipe section 7, the circuit is opened. The diameter of the expansion pipe section 7 is preferably 1.5 to 3 times the diameter of other pipe sections.
[0036] Example 2
[0037] This embodiment discloses an antifreeze structure for a pressure-boosting building safety valve, which differs from Embodiment 1 in the following ways: Figure 2 and Figure 3 As shown, the pressure balancing section 4 and the dehumidification section 3 are detachably connected on the pipeline. This arrangement facilitates the maintenance and replacement of the pressure balancing section 4 and the dehumidification section 3. Furthermore, when the desiccant 6 fails or is insufficient, the dehumidification section 3 can be disassembled and the desiccant 6 can be replenished in the sink trough 5. Also, when the piston 8 falls into the expansion pipe section 7, the pressure balancing section 4 can be removed and the piston 8 can be returned to its original position.
[0038] In this embodiment: as Figure 2 Hehe Figure 3 As shown, the pressure balancing section 4 and the dehumidification section 3 are detachably connected to the pipeline by means of threaded connection. In order to facilitate manufacturing, maintenance and replacement, the sinking trough 5 can also be threaded to the pipeline and the expanded diameter pipe section 7 can be threaded to the pipe sections at both ends.
[0039] In this embodiment: as Figure 2 As shown, when piston 8 does not fall into the expanded diameter pipe section 7, piston 8 isolates safety valve 1 from the room, and piston 8 can move back and forth according to changes in indoor air pressure; as Figure 3 As shown, when piston 8 falls into the expanded diameter pipe section 7, the gas in pressurized building 2 is discharged to safety valve 1 through the pipe.
[0040] Example 3
[0041] This embodiment discloses an antifreeze structure for a pressure-boosting building safety valve, which differs from Embodiment 2 in the following ways: Figure 3 and Figure 4 As shown, this embodiment uses different dehumidification sections 3 and pressure balancing sections 4.
[0042] In this embodiment: as Figure 4 and Figure 5 As shown, an annular drying section 9 is provided on the inner wall of the pipe where the dehumidification section 3 is located. The center of the drying section 9 is the airflow channel 10. The drying section 9 is filled with desiccant 6. This arrangement allows the airflow to come into more full contact with the desiccant 6. The desiccant 6 is preferably one or more of silica gel, anhydrous calcium chloride, or anhydrous calcium sulfate.
[0043] In the present embodiment: as shown in Figure 4 and Figure 5 , the pressure balance section 4 is a one-way valve, the pipeline where the pressure balance section 4 is located as a valve body, the blockage as a valve core 12, the valve body is provided with a valve seat 13 and a spring 11, the valve seat 13 is provided with a through hole 14, and the valve core 12 is located between the safety valve 1 and the valve seat 13, as shown in Figure 4 , the spring 11 presses the valve core 12 tightly on the through hole 14 of the valve seat 13 in the normal state to close the one-way valve, as shown in Figure 5 , the valve core 12 overcomes the force of the spring 11 to leave the through hole 14 of the valve seat 13 under the action of indoor overpressure to open the one-way valve, this scheme uses the pressure difference to overcome the force of the spring 11 to push the valve core 12 to move, and the valve core 12 is realized to be conducted as soon as it leaves the valve seat 13; the opening pressure difference of the one-way valve is preferably 15kp.
[0044] It can be known from the above embodiments one to three that:
[0045] This structure can avoid frosting in the safety valve 1: in the normal state, the blockage separates the safety valve 1 from the indoor, and the moisture in the pressurized building 2 cannot diffuse to the safety valve 1 through the pipeline, so that the humidity in the safety valve 1 is normal, and even in the cold region without insulation and heating, frosting is not easy to occur, and the dehumidification section 3 can also dry the gas in the pipeline, further avoiding frosting.
[0046] At the same time, this structure does not affect the pressure relief of the safety valve 1: when the indoor pressure is too high, the blockage moves to the side of the safety valve 1, the indoor gas is discharged to the safety valve 1 through the pipeline, the safety valve 1 can normally relieve pressure, and the dehumidification section 3 can also dry the gas to the safety valve 1, avoiding the newly added moisture from causing frosting.
[0047] The present application also provides a pressurized building comprising the pressurized building safety valve anti-freezing structure in the above embodiments one to three.
[0048] The above described embodiments are part of the embodiments of the present application, rather than all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.
Claims
1. A freeze-proof structure of a pressure building safety valve, the safety valve being installed outside a pressure building and communicating with the inside of the pressure building through a pipe; the freeze-proof structure being connected to the pipe and installed inside the pressure building; characterized in that: The anti-freezing structure comprises a pressure balance section and a dehumidification section; the pressure balance section is used for balancing the air pressure on the side of the safety valve in the pressurized building; a movable plug is arranged in the pressure balance section; in normal state, the plug separates the safety valve from the indoor; when the plug moves to the side of the safety valve under the action of indoor overpressure, indoor gas is discharged to the safety valve through the pipeline; the dehumidification section is used for drying the gas in the pipeline and leading to the safety valve, so as to avoid water vapor freezing in the safety valve. 2. The pressure building safety valve freeze protection structure of claim 1, wherein: The pressure balance section and the dehumidification section are detachably connected on the pipeline.
3. The pressure building safety valve freeze protection structure of claim 1, wherein: A sunken groove is arranged on the pipeline where the dehumidification section is located, and a drying agent is placed in the sunken groove.
4. The pressure boosted safety valve freeze protection arrangement of claim 1, wherein: An annular drying part is arranged on the inner wall of the pipeline where the dehumidification section is located, the center of the drying part is a gas flow channel, and the drying part is filled with a drying agent.
5. The anti-freezing structure of the safety valve of the pressurized building according to claim 3 or 4, wherein the drying agent is one or more of silica gel, anhydrous calcium chloride or anhydrous calcium sulfate.
6. The pressure boosted safety valve freeze protection arrangement of claim 1, wherein: The plug is in sliding sealing cooperation with the pipeline where the pressure balance section is located as a piston, an expansion pipe section is arranged at the end of the stroke of the piston on the pipeline where the pressure balance section is located, and when the piston falls into the expansion pipe section, the gas in the pressurized building is discharged to the safety valve through the pipeline.
7. The pressure boosted safety building valve freeze protection structure according to claim 6, wherein: The diameter of the expansion pipe section is 1.5-3 times the diameter of other pipe sections.
8. The pressure boosted safety building valve freeze protection arrangement of claim 1 wherein: The pressure balance section is a one-way valve, the pipeline where the pressure balance section is located is used as a valve body, the plug is used as a valve core, a valve seat and a spring are arranged in the valve body, a through hole is arranged on the valve seat, the valve core is located between the safety valve and the valve seat, in normal state, the spring presses the valve core tightly on the through hole of the valve seat to close the one-way valve, and under the action of indoor overpressure, the valve core overcomes the spring force to leave the through hole of the valve seat to open the one-way valve.
9. The pressure boosted safety building valve freeze protection arrangement of claim 8 wherein: The opening pressure difference of the one-way valve is 15 kp.
10. A pressurized building, characterized by: The anti-freezing structure of the safety valve of the pressurized building according to any one of claims 1 to 7.