Floating ball type steam trap with air exhausting function
By introducing the exhaust chamber and thermal expansion and contraction element into the float steam trap, the steam blockage problem caused by the accumulation of non-condensable gas is solved, and the stable operation and efficient drainage effect of the steam system are achieved.
Patent Information
- Application Number
- CN202422865228.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-23
AI Technical Summary
During the working process, the floating ball steam trap is prone to steam blockage due to the accumulation of non-condensable gas, which affects the efficiency and normal operation of the equipment.
A floating ball steam trap with air exhaust function is designed. By setting up an exhaust chamber, thermal expansion and contraction element, plug and guide groove in the valve body, the thermal expansion and contraction element is used to discharge non-condensable gas when the steam system is started, and the opening and closing states of the exhaust pipe are switched during the system operation to prevent gas blockage.
It effectively prevents the gas blockage of the steam trap, ensures the normal operation and efficiency of the steam system, and achieves continuous emission of air and non-condensable gases through the design of thermal expansion and contraction components, and protects the internal structure of the valve body from damage.
Smart Images
Figure CN223242515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of float type steam traps, in particular to a float type steam trap with an air exhaust function. Background Art
[0002] Float-type steam traps play a vital role in industrial steam heating systems. They effectively remove condensate from steam systems and prevent steam leakage, thereby ensuring efficient operation of steam heating equipment. The working principle of float-type steam traps is primarily based on the density difference between steam and condensate. When condensate flows into the trap, the float rises due to buoyancy, which in turn drives the valve flap mechanism to open and discharge the condensate. When steam enters the trap, the float rises or sinks according to the increase or decrease in the amount of condensate, adjusting the opening of the valve flap mechanism to achieve continuous drainage.
[0003] During the operation of the steam trap, non-condensable gases will accumulate on the upper part of the valve body. If they cannot be discharged out of the valve, it is easy to cause steam blockage. Steam blockage will not only affect the normal operation of the steam trap, but may also reduce the efficiency of the steam heating equipment. Therefore, a float-type steam trap with air exhaust function is needed. Utility Model Content
[0004] The purpose of the utility model is to provide a float-type steam trap with an air exhaust function to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a float-type steam trap with an air exhaust function, comprising a valve body, a valve cover, a float main body and an exhaust chamber, wherein mounting holes are evenly distributed on the outer sides of both ends of the valve body, a float main body is provided at the bottom end of the interior of the valve body, and a valve seat is provided in the valve body on one side of the float main body, a filter is provided in the valve body above the float main body, a valve cover is provided at the top of the valve body, and an exhaust chamber is provided at the bottom end of the interior of the valve cover, through holes are evenly provided at the bottom of the exhaust chamber, a plug is provided at the central position of the interior of the exhaust chamber through a thermal expansion and contraction element, and an exhaust pipe is provided in the exhaust chamber above the plug, a channel is provided in the valve cover above the exhaust chamber, guide grooves are provided on both sides of the interior of the exhaust chamber, and both sides of the plug are slidably connected to the guide grooves through guide members.
[0006] Preferably, the four sides of the top of the valve cover are fixedly connected to the top of the valve body by bolts, and the tops of the bolts are locked and fixed by nuts.
[0007] Preferably, a spray pipe is provided in the valve body above the filter, and nozzles are provided at both ends of the bottom of the spray pipe. A water inlet pipe is provided in the valve body above the spray pipe, and the top of the water inlet pipe extends to the top side of the valve cover.
[0008] Preferably, one end of the channel is connected to the exhaust pipe, and the other end of the channel is connected to the outlet end of the valve body.
[0009] Preferably, three groups of nozzles are provided at the bottom of the nozzles, and fan-shaped water outlets are provided on the nozzles.
[0010] Preferably, a main water channel is provided at the central position inside the nozzle, and the bottom end of the main water channel is evenly connected to the nozzle through a secondary water channel.
[0011] Preferably, the end of the nut close to the valve cover is pressed tightly against the valve cover via a spacer, and the end of the spacer close to the nut is provided with a bulge, and an elastic element is provided between the bulge and the nut.
[0012] Preferably, the elastic elements are made of rubber material with an arched structure, and both ends of the elastic elements are against the bulge.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the float-type steam trap with air exhaust function is equipped with a valve body, a valve cover, a float body, a valve seat, an exhaust chamber, a through hole, a thermal expansion and contraction element, a plug, an exhaust pipe and a channel. The valve body is connected to the steam system. Before the steam system is started or when the system pressure is low, the thermal expansion and contraction element is in a contracted state. When the steam system starts to run, air and non-condensable gases enter the valve body. Since the density of these gases is lower than that of steam, they will first enter the exhaust chamber through the through hole at the bottom of the exhaust chamber, and enter the channel through the exhaust pipe and then be discharged from the system. As the steam gradually enters and the pressure increases, the thermal expansion and contraction element begins to expand due to heat. When it expands to a certain level, the thermal expansion and contraction element will be discharged from the system. When the pressure reaches a certain level, it will push the plug to close the exhaust pipe inlet, thereby preventing steam leakage. During the operation of the steam system, with the generation and accumulation of condensed water and the continued entry of steam, the thermal expansion and contraction element will continuously undergo a process of expansion and contraction, causing the exhaust pipe inlet to switch between open and closed states to continuously discharge air and non-condensable gases in the system to prevent air blockage. At the same time, guide members are provided on both sides of the plug, and guide grooves are provided on both sides of the exhaust chamber. When the plug moves, the guide members slide in the guide grooves, causing the thermal expansion and contraction element to move along a predetermined path during expansion and contraction, while providing necessary support and restriction to prevent the thermal expansion and contraction element from being damaged by excessive stress. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the exhaust chamber of the present utility model;
[0017] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;
[0018] Figure 4 For the utility model Figure 1 The enlarged structural diagram at B in the middle;
[0019] Figure 5 It is a schematic diagram of a partial side view of the valve body of the present invention.
[0020] In the figure: 1. Valve body; 2. Mounting hole; 3. Valve cover; 4. Float body; 5. Filter screen; 6. Valve seat; 7. Exhaust chamber; 8. Channel; 9. Spray pipe; 10. Water inlet pipe; 11. Exhaust pipe; 12. Plug; 13. Through hole; 14. Thermal expansion and contraction element; 15. Guide piece; 16. Guide groove; 17. Sprinkler; 18. Main water channel; 19. Auxiliary water channel; 20. Nozzle; 21. Fan-shaped water outlet; 22. Nut; 23. Elastic element; 24. Spacer; 25. Bulge; 26. Bolt. DETAILED DESCRIPTION
[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] See also Figure 1-5 The utility model provides an embodiment of a float-type steam trap with an air exhaust function, comprising a valve body 1, a valve cover 3, a float body 4, and an exhaust chamber 7. Mounting holes 2 are evenly distributed on the outer sides of both ends of the valve body 1. The valve body 1 is connected to the steam system through the mounting holes 2.
[0023] A valve cover 3 is provided on the top of the valve body 1. The four sides of the top of the valve cover 3 are fixedly connected to the top of the valve body 1 by bolts 26, and the tops of the bolts 26 are locked and fixed by nuts 22, which facilitates the inspection and maintenance of the internal parts of the valve body 1.
[0024] The end of the nut 22 close to the valve cover 3 is pressed against the valve cover 3 through a spacer 24, and the end of the spacer 24 close to the nut 22 is provided with a bulge 25, and an elastic element 23 is provided between the bulge 25 and the nut 22;
[0025] The elastic elements 23 are made of rubber with an arched structure, and both ends of the elastic elements 23 are against the bulge 25. The elastic characteristics of the elastic elements 23 make the nut 22 more secure after being locked, and are not easily loosened under the influence of external forces, thereby improving the tightness of the connection between the valve cover 3 and the valve body 1.
[0026] An exhaust chamber 7 is provided at the bottom end of the valve cover 3. Through holes 13 are evenly opened at the bottom of the exhaust chamber 7. A plug 12 is provided at the central position of the exhaust chamber 7 through a thermal expansion and contraction element 14. An exhaust pipe 11 is provided in the exhaust chamber 7 above the plug 12. A channel 8 is provided in the valve cover 3 above the exhaust chamber 7.
[0027] One end of the channel 8 is connected to the exhaust pipe 11, and the other end of the channel 8 is connected to the outlet end of the valve body 1;
[0028] Before the steam system is started or when the system pressure is low, the thermal expansion and contraction element 14 in the exhaust chamber 7 is in a contracted state. When the steam system starts running, air and non-condensable gases enter the valve body 1. Since the density of these gases is lower than that of steam, they will first enter the exhaust chamber 7 through the through hole 13 at the bottom of the exhaust chamber 7, and then enter the channel 8 through the exhaust pipe 11 and be discharged from the system.
[0029] As steam gradually enters and pressure rises, the thermal expansion and contraction element 14 begins to expand due to heat. When it expands to a certain extent, it pushes the plug 12 to close the inlet of the exhaust pipe 11, thereby preventing steam leakage.
[0030] A float body 4 is provided at the bottom end of the valve body 1, and a valve seat 6 is provided in the valve body 1 on one side of the float body 4;
[0031] During the operation of the steam system, when condensate flows into the valve body 1, the float body 4 will float up due to the buoyancy, thereby allowing the condensate to be discharged from the gap of the valve seat 6. In addition, as condensate is generated and accumulated and steam continues to enter, the float body 4 will float up or sink according to the increase or decrease in the amount of condensate, adjusting the opening of the gap between the valve seat 6 and the float body 4 to achieve continuous drainage. At the same time, the thermal expansion and contraction element 14 will continuously undergo a process of expansion and contraction, causing the inlet of the exhaust pipe 11 to switch between open and closed states, thereby continuously discharging air and non-condensable gases in the system and preventing gas blockage.
[0032] Guide grooves 16 are provided on both sides of the exhaust chamber 7, and both sides of the plug 12 are slidably connected to the guide grooves 16 through guide members 15;
[0033] When the plug 12 moves, the guide member 15 slides in the guide groove 16, so that the thermal expansion and contraction element 14 moves along a predetermined path during expansion and contraction, while providing necessary support and restriction to prevent the thermal expansion and contraction element 14 from being damaged by excessive stress;
[0034] A filter 5 is provided in the valve body 1 above the float body 4 to filter out impurities and particles in the steam or condensate;
[0035] A spray pipe 9 is provided in the valve body 1 above the filter 5, and nozzles 17 are provided at both ends of the bottom of the spray pipe 9. A water inlet pipe 10 is provided in the valve body 1 above the spray pipe 9, and the top of the water inlet pipe 10 extends to the top side of the valve cover 3.
[0036] The bottom of the nozzle 17 is provided with three groups of nozzles 20, and each nozzle 20 is provided with a fan-shaped water outlet 21;
[0037] A main water channel 18 is provided at the center of the nozzle 17, and the bottom end of the main water channel 18 is evenly connected to the nozzle 20 through the auxiliary water channel 19;
[0038] By connecting an external water pump through the water inlet pipe 10, water can be regularly introduced into the spray pipe 9 and evenly sprayed out through the nozzle 20 on the nozzle 17. The fan-shaped water outlet 21 on the nozzle 20 enables the water flow to have a certain cutting effect, flushing the impurities blocked on the filter 5 to ensure its normal use effect.
[0039] Working principle: When the embodiment of the present application is in use, the valve body 1 is connected to the steam system through the mounting hole 2. Before the steam system is started or when the system pressure is low, the thermal expansion and contraction element 14 in the exhaust chamber 7 is in a contracted state. When the steam system starts running, air and non-condensable gases enter the valve body 1. Since the density of these gases is lower than that of steam, they will first enter the exhaust chamber 7 through the through hole 13 at the bottom of the exhaust chamber 7, and enter the channel 8 through the exhaust pipe 11 and then be discharged from the system. As the steam gradually enters and the pressure increases, the thermal expansion and contraction element 14 begins to expand due to heat. When it expands to a certain extent, it will push the plug 12 to close the entrance of the exhaust pipe 11, thereby preventing steam leakage. During the operation of the steam system, when condensed water flows into the valve body 1, the float body 4 will float up due to buoyancy, thereby causing the condensed water to be discharged from the notch of the valve seat 6. In addition, as the condensed water is generated and accumulated and the steam continues to enter, the thermal expansion and contraction element 14 will Continuously undergoing the process of expansion and contraction, the inlet of the exhaust pipe 11 switches between open and closed states to continuously discharge air and non-condensable gases in the system to prevent air blockage. At the same time, guide members 15 are provided on both sides of the plug 12, and guide grooves 16 are provided on both sides of the exhaust chamber 7. When the plug 12 moves, the guide members 15 slide in the guide grooves 16, so that the thermal expansion and contraction element 14 moves along a predetermined path during expansion and contraction, while providing necessary support and restriction to prevent the thermal expansion and contraction element 14 from being damaged by excessive stress. The filter screen 5 in the valve body 1 is used to filter out impurities and particulate matter in steam or condensate. At the same time, an external water pump is connected through the water inlet pipe 10, and water can be regularly introduced into the spray pipe 9 and evenly sprayed through the nozzle 20 on the nozzle 17. The fan-shaped water outlet 21 on the nozzle 20 enables the water flow to have a certain cutting effect, flushing the impurities blocked on the filter screen 5 to ensure its normal use effect.
[0040] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
Claims
1. A float type steam trap with air exhaust function, characterized in that: The invention comprises a valve body (1), a valve cover (3), a float body (4) and an exhaust chamber (7), wherein mounting holes (2) are evenly distributed on the outer sides of both ends of the valve body (1), a float body (4) is provided at the bottom end of the interior of the valve body (1), and a valve seat (6) is provided in the valve body (1) on one side of the float body (4), a filter screen (5) is provided in the valve body (1) above the float body (4), a valve cover (3) is provided on the top of the valve body (1), and an exhaust chamber (7) is provided at the bottom end of the interior of the valve cover (3), Through holes (13) are evenly provided at the bottom of the exhaust chamber (7), a plug (12) is provided at the central position inside the exhaust chamber (7) via a thermal expansion and contraction element (14), an exhaust pipe (11) is provided in the exhaust chamber (7) above the plug (12), a channel (8) is provided in the valve cover (3) above the exhaust chamber (7), guide grooves (16) are provided on both sides of the exhaust chamber (7), and both sides of the plug (12) are slidably connected to the guide grooves (16) via guide members (15).
2. The float-type steam trap with air exhaust function according to claim 1, characterized in that: The four sides of the top of the valve cover (3) are fixedly connected to the top of the valve body (1) by bolts (26), and the tops of the bolts (26) are locked and fixed by nuts (22).
3. The float-type steam trap with air exhaust function according to claim 1, characterized in that: A spray pipe (9) is provided in the valve body (1) above the filter screen (5), and nozzles (17) are provided at both ends of the bottom of the spray pipe (9). A water inlet pipe (10) is provided in the valve body (1) above the spray pipe (9), and the top of the water inlet pipe (10) extends to the top side of the valve cover (3).
4. The float-type steam trap with air exhaust function according to claim 1, characterized in that: One end of the channel (8) is connected to the exhaust pipe (11), and the other end of the channel (8) is connected to the outlet end of the valve body (1).
5. The float-type steam trap with air exhaust function according to claim 3, characterized in that: The bottom of each nozzle (17) is provided with three groups of nozzles (20), and each nozzle (20) is provided with a fan-shaped water outlet (21).
6. The float-type steam trap with air exhaust function according to claim 5, characterized in that: A main water channel (18) is provided at a central position inside the nozzle (17), and the bottom end of the main water channel (18) is evenly connected to the nozzle (20) through a secondary water channel (19).
7. The float-type steam trap with air exhaust function according to claim 2, characterized in that: The end of the nut (22) close to the valve cover (3) is pressed tightly against the valve cover (3) through a spacer (24), and the end of the spacer (24) close to the nut (22) is provided with a bulge (25), and an elastic element (23) is provided between the bulge (25) and the nut (22).
8. The float-type steam trap with air exhaust function according to claim 7, characterized in that: The elastic elements (23) are made of rubber material with an arched structure, and both ends of the elastic elements (23) are against the bulge (25).