Vertical water replenishing type water inlet valve
By fronting the flow sensor in the wall-mounted boiler water inlet valve and adopting the current limiting inner core and flow limiting hood design, the frequency deviation problem caused by different models of the current limiting device is solved, and the stable operation of the system and convenient water replenishment operation are achieved.
Patent Information
- Application Number
- CN202422568697.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-24
AI Technical Summary
In the existing wall-mounted boiler water inlet valve, the flow sensor is installed after the flow limiting device, resulting in different water flow velocities after the flow limiting device of different models, resulting in a deviation in the output frequency of the flow sensor and affecting the stability of the system.
The flow sensor is in front, and the tap water passes through the flow sensor first and then through the flow limiting device. The flow stabilization device is cancelled, and the water flow velocity consistency is ensured through the design of the flow limiting inner core and flow limiting hood.
It effectively avoids the frequency deviation of flow sensors caused by different models of the current limiting device, ensures the stable operation of the wall-mounted furnace system, and facilitates the sealing cooperation between the water replenishment valve stem and the wall-mounted furnace bottom plate, for easy transportation.
Smart Images
Figure CN223152869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of make-up valves, and more specifically, to a vertical make-up type inlet valve. Background Technique
[0002] The inlet valve in a wall-mounted boiler is the water inlet channel for tap water inlet and heating return water, and at the same time integrates external connection interfaces such as a flow sensor, a make-up valve, a pressure sensor, a water pump, etc. And in order to maintain the stability of the water pressure in the system, a flow stabilization device and a flow limiting device are also provided inside the inlet valve. Tap water passes through the flow stabilization device, the flow limiting device and the flow sensor in sequence.
[0003] The current wall-mounted boiler inlet valves have the following problems. In some inlet valves, a flow stabilization device cannot be installed, and the flow sensor is installed after the flow limiting device. After the water flow is limited by flow limiting devices of different models, the water flow velocity is different under the same flow rate, resulting in a large deviation in the output frequency of the flow sensor, so that the actual inlet water flow and the electric signal controlling the gas valve cannot be synchronized proportionally. Therefore, there is an urgent need to improve this. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide a vertical make-up type inlet valve. By placing the flow sensor in front, after the tap water enters the inlet valve, it first passes through the flow sensor and then through the flow limiting device, which can effectively solve the problem that the output frequency of the flow sensor is different after being limited by flow limiting devices of different models.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model discloses a vertical make-up type inlet valve, which includes a valve body. The valve body includes a water inlet interface, a horizontally arranged first installation cavity, a plate heat exchanger inlet, a plate heat exchanger outlet and a water pump interface. A flow sensor is installed in the first installation cavity, and a flow limiting device is installed in the plate heat exchanger inlet. The water inlet interface is located below the first installation cavity, and the plate heat exchanger inlet is located on the side of the first installation cavity. The water inlet interface, the first installation cavity and the plate heat exchanger inlet form a water inlet waterway, and the plate heat exchanger outlet is communicated with the water pump interface.
[0007] Further, the flow limiting device includes a flow limiting cover and a flow limiting inner core. The flow limiting inner core is installed in the flow limiting cover, and the outside of the plate heat exchanger inlet is communicated with the first installation cavity through the gap between the flow limiting inner core and the flow limiting cover.
[0008] Further, one end of the flow limiting cover is provided with a second annular surface. The flow limiting inner core includes a second annular rib, the second annular rib is tightly fitted with the inner wall of the flow limiting cover, a plurality of through holes are provided in the second annular rib, a second sealing ring is sleeved outside the flow limiting inner core, and the second sealing ring abuts against the second annular surface and the second annular rib respectively.
[0009] Furthermore, the current limiting device further includes a housing. The current limiting cover is inserted into the housing, and the outer ring of the current limiting cover is tightly fitted with the inner wall of the housing. One end of the housing is provided with a first annular surface, and one end of the current limiting cover abuts against the inner side of the first annular surface.
[0010] Furthermore, a first sealing ring is installed inside the plate heat exchanger inlet. The outer ring wall of the first sealing ring is tightly fitted with the inner wall of the plate heat exchanger inlet, and the current limiting device is installed inside the first sealing ring.
[0011] Furthermore, a first annular rib is provided on the outer ring of the housing, and an annular groove is provided inside the first sealing ring. The first annular rib is inserted into the annular groove for positioning.
[0012] Furthermore, the valve body further includes a second installation cavity, a first water replenishing channel, a second water replenishing channel, and a third water replenishing channel. A water replenishing valve rod is installed inside the second installation cavity. The first water replenishing channel is communicated with the first installation cavity. The first water replenishing channel and the second water replenishing channel are communicated or blocked through the water replenishing valve rod. The second water replenishing channel and the third water replenishing channel are communicated. The third water replenishing channel is communicated with the water pump interface. The first installation cavity, the first water replenishing channel, the second water replenishing channel, the third water replenishing channel, and the water pump interface form a water replenishing waterway.
[0013] Furthermore, the opening of the second installation cavity is arranged downward. The first water replenishing channel and the third water replenishing channel are arranged horizontally. The second water replenishing channel is arranged vertically. The lower ends of the first water replenishing channel and the second water replenishing channel can be communicated or blocked. The third water replenishing channel is communicated with the upper end of the second water replenishing channel.
[0014] Furthermore, the second installation cavity and the second water replenishing channel are coaxially arranged. The water replenishing valve rod includes a boss at its upper end. A sealing gasket is sleeved outside the boss. The water replenishing valve rod can move up and down so that the upper part of the sealing gasket abuts against and blocks the lower end of the second water replenishing channel or disengages from the lower end of the second water replenishing channel. The second installation cavity includes a connecting cavity and a sealing cavity located above the connecting cavity. A first sealing ring is sleeved outside the water replenishing valve rod. The water replenishing valve rod and the sealing cavity are sealed through the first sealing ring. The water replenishing valve rod and the connecting cavity are connected by threads.
[0015] Furthermore, the flow sensor includes an impeller. The impeller is located inside the first installation cavity. A second sealing ring is installed inside the plate heat exchanger outlet. An inlet joint is installed inside the water inlet interface, and a filter screen is installed inside the inlet joint.
[0016] The beneficial effects of the present utility model are:
[0017] 1. During use, tap water enters the first installation cavity from the water inlet interface and drives the impeller in the first installation cavity to rotate. After passing through the first installation cavity, it flows out of the plate heat exchanger inlet through the gap between the flow-limiting inner core and the flow-limiting cover and enters the plate heat exchanger. By placing the flow sensor in front of the flow-limiting device, without installing a flow-stabilizing device inside the valve body, it can effectively avoid different output frequencies of the flow sensor caused by different water flow velocities of different models of flow-limiting devices, and can effectively ensure the stable operation of the wall-mounted boiler system;
[0018] 2. The second installation cavity is arranged with its opening facing downwards, the first water replenishment channel and the third water replenishment channel are arranged horizontally, the second water replenishment channel is arranged vertically, the lower ends of the first water replenishment channel and the second water replenishment channel can be connected or blocked, and the third water replenishment channel is connected to the upper end of the second water replenishment channel. Thus, it can be seen that in this embodiment, it is a vertical water replenishment, the water replenishment valve stem is arranged vertically, and it can achieve a reliable fit with the bottom plate of the wall-mounted boiler, facilitating the sealing between the water replenishment valve stem and the bottom plate of the wall-mounted boiler, and setting the orientations of the water replenishment valve stem and the water inlet joint to be the same, which is beneficial to the packaging and transportation of the water inlet valve. Brief Description of the Drawings
[0019] Figure 1 is a schematic structural view of this embodiment;
[0020] Figure 2 is an exploded view of this embodiment;
[0021] Figure 3 is a cross-sectional view of the side view of this embodiment;
[0022] Figure 4 is Figure 3 an enlarged view at A;
[0023] Figure 5 is a cross-sectional view of the front view of this embodiment.
[0024] Reference Numerals: 1. Valve body; 11. Water inlet interface; 12. First installation cavity; 13. Plate heat exchanger inlet; 14. Plate heat exchanger outlet; 15. Water pump interface; 16. Second installation cavity; 161. Connection cavity; 162. Sealing cavity; 17. First water replenishment channel; 18. Second water replenishment channel; 19. Third water replenishment channel; 2. Flow sensor; 21. Impeller; 3. Water replenishment valve stem; 31. Boss; 32. Sealing gasket; 33. First sealing ring; 4. Flow-limiting device; 41. Outer shell; 411. First annular rib; 412. First annular surface; 42. Flow-limiting cover; 421. Second annular surface; 422. Opening; 43. Flow-limiting inner core; 431. Second annular rib; 432. Through hole; 44. Second sealing ring; 5. First sealing ring; 51. Annular groove; 6. Second sealing ring; 7. Water inlet joint; 8. Filter screen. Detailed Embodiment
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0026] As Figures 1 to 5 shown, a vertical water replenishing type inlet valve includes a valve body 1. The valve body 1 includes a water inlet interface 11, a horizontally arranged first installation cavity 12, a plate heat exchanger inlet 13, a plate heat exchanger outlet 14, and a water pump interface 15. A flow sensor 2 is installed in the first installation cavity 12, and a flow limiting device 4 is installed in the plate heat exchanger inlet 13. The flow limiting device 4 includes a flow limiting cover 42 and a flow limiting inner core 43. The flow limiting inner core 43 is installed in the flow limiting cover 42. The outside of the plate heat exchanger inlet 13 communicates with the first installation cavity 12 through the gap between the flow limiting inner core 43 and the flow limiting cover 42. The water inlet interface 11 is located below the first installation cavity 12, and the plate heat exchanger inlet 13 is located on the side of the first installation cavity 12. The water inlet interface 11, the first installation cavity 12, and the plate heat exchanger inlet 13 form a water inlet waterway. The plate heat exchanger outlet 14 communicates with the water pump interface 15. The flow sensor 2 includes an impeller 21. The impeller 21 is located in the first installation cavity 12. The flow sensor 2 is a prior art, and its specific structure will not be elaborated in this specification.
[0027] During use, tap water enters the first installation cavity 12 from the water inlet interface 11 and pushes the impeller 21 in the first installation cavity 12 to rotate. After passing through the first installation cavity 12, it flows out of the plate heat exchanger inlet 13 through the gap between the flow limiting inner core 43 and the flow limiting cover 42 and enters the plate heat exchanger (not shown in the figure). By placing the flow sensor 2 in front of the flow limiting device 4, without installing a flow stabilizing device inside the valve body 1, it can effectively avoid the different output frequencies of the flow sensor 2 caused by the different water flow speeds of different types of flow limiting devices, and can effectively ensure the stable operation of the wall-mounted boiler system.
[0028] One end of the flow limiting cover 42 is provided with a second annular surface 421, and an opening 422 is provided in the second annular surface 421. The flow limiting inner core 43 includes a second annular rib 431. The second annular rib 431 is tightly fitted with the inner wall of the flow limiting cover 42. A plurality of through holes 432 are provided in the second annular rib 431. A second sealing ring 44 is sleeved outside the flow limiting inner core 43. The second sealing ring 44 abuts against the second annular surface 421 and the second annular rib 431 respectively. The flow limiting device 4 further includes a housing 41. The flow limiting cover 42 is inserted into the housing 41. The outer ring of the flow limiting cover 42 is tightly fitted with the inner wall of the housing 41. One end of the housing 41 is provided with a first annular surface 412. One end of the flow limiting cover 42 abuts against the inner side of the first annular surface 412. During flow limiting, tap water can flow out from the gap between the flow limiting inner core 43 and the opening 422.
[0029] As Figure 3 and Figure 4 shown, when assembling the current-limiting device 4, first, the second sealing ring 44 is sleeved on the outer side of the current-limiting inner core 43, then the current-limiting inner core 43 is embedded into the current-limiting cover 42, and the second annular rib 431 and the current-limiting cover 42 are tightly fitted and clamped. Then, the current-limiting cover 42 with the current-limiting inner core 43 installed is embedded into the housing 41 and fixed. The current-limiting principle of the current-limiting device 4 is prior art, so it will not be elaborated in this specification.
[0030] As Figure 3 and Figure 4 shown, a first sealing ring 5 is installed in the plate heat exchanger inlet 13. The outer annular wall of the first sealing ring 5 is tightly fitted with the inner wall of the plate heat exchanger inlet 13. The current-limiting device 4 is installed in the first sealing ring 5. Specifically, a first annular rib 411 is provided on the outer side of the housing 41 in a ring shape, and an annular groove 51 is provided on the inner side of the first sealing ring 5. The first annular rib 411 is inserted into the annular groove 51 for positioning. The first sealing ring 5 is a rubber part. By installing the current-limiting device 4 in the first sealing ring 5, it can not only be close to the plate heat exchanger (not shown in the figure), but also facilitate the disassembly and assembly of the current-limiting device 4, so as to facilitate the replacement of different models of current-limiting devices 4 as needed.
[0031] A second sealing ring 6 is installed in the plate heat exchanger outlet 14, and the second sealing ring 6 is the same as the first sealing ring 5.
[0032] As Figure 3 shown, a water inlet joint 7 is installed in the water inlet interface 11, and a filter screen 8 is installed in the water inlet joint 7. The water inlet joint 7 can be connected to an external pipeline. By setting the filter screen 8, the tap water entering the first installation cavity 12 can be filtered.
[0033] As Figure 3As shown, the valve body 1 further includes a second installation cavity 16, a first water replenishing channel 17, a second water replenishing channel 18, and a third water replenishing channel 19. A water replenishing valve stem 3 is installed in the second installation cavity 16. The first water replenishing channel 17 is communicated with the first installation cavity 12. The first water replenishing channel 17 and the second water replenishing channel 18 are communicated or blocked through the water replenishing valve stem 3. The second water replenishing channel 18 and the third water replenishing channel 19 are communicated. The third water replenishing channel 19 is communicated with the water pump interface 15. The first installation cavity 12, the first water replenishing channel 17, the second water replenishing channel 18, the third water replenishing channel 19, and the water pump interface 15 form a water replenishing waterway. Specifically, the second installation cavity 16 and the second water replenishing channel 18 are coaxially arranged. The water replenishing valve stem 3 includes a boss 31 at its upper end. A sealing gasket 32 is sleeved outside the boss 31. The water replenishing valve stem 3 can move up and down so that the upper part of the sealing gasket 32 abuts against and blocks the lower end of the second water replenishing channel 18 or disengages from the lower end of the second water replenishing channel 18. The second installation cavity 16 includes a connecting cavity 161 and a sealing cavity 162 located above the connecting cavity 161. A first sealing ring 33 is sleeved outside the water replenishing valve stem 3. The water replenishing valve stem 3 and the sealing cavity 162 are sealed through the first sealing ring 33. The water replenishing valve stem 3 and the connecting cavity 161 are connected by threads.
[0034] When it is necessary to replenish water to the pipeline of the water pump, rotate the water replenishing valve stem 3. The water replenishing valve stem 3 descends, and the first water replenishing channel 17 and the second water replenishing channel 18 are communicated, so that the water replenishing waterway is communicated, and tap water can flow from the first installation cavity 12 into the water pump interface 15 for water replenishment.
[0035] The opening 422 of the second installation cavity 16 is arranged downward. The first water replenishing channel 17 and the third water replenishing channel 19 are arranged horizontally, and the second water replenishing channel 18 is arranged vertically. The lower ends of the first water replenishing channel 17 and the second water replenishing channel 18 can be communicated or blocked. The third water replenishing channel 19 is communicated with the upper end of the second water replenishing channel 18. It can be seen that in this embodiment, it is a vertical water replenishment. The water replenishing valve stem 3 is arranged vertically and can be reliably matched with the bottom plate of the wall-mounted boiler (not shown in the figure), which is convenient for sealing between the water replenishing valve stem 3 and the bottom plate of the wall-mounted boiler. And the orientations of the water replenishing valve stem 3 and the water inlet joint 7 are set to be the same, which is beneficial to the packaging and transportation of the water inlet valve.
[0036] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A vertical water replenishing type inlet valve, characterized in that It includes a valve body (1), and the valve body (1) includes a water inlet interface (11), a horizontally arranged first installation cavity (12), a plate heat exchanger inlet (13), a plate heat exchanger outlet (14) and a water pump interface (15). A flow sensor (2) is installed in the first installation cavity (12), and a flow limiting device (4) is installed in the plate heat exchanger inlet (13). The water inlet interface (11) is located below the first installation cavity (12), and the plate heat exchanger inlet (13) is located on the side of the first installation cavity (12). The water inlet interface (11), the first installation cavity (12) and the plate heat exchanger inlet (13) form a water inlet waterway. The plate heat exchanger outlet (14) is communicated with the water pump interface (15).
2. The vertical water replenishing type inlet valve according to claim 1, wherein The flow limiting device (4) includes a flow limiting cover (42) and a flow limiting inner core (43). The flow limiting inner core (43) is installed in the flow limiting cover (42). The outside of the plate heat exchanger inlet (13) is communicated with the first installation cavity (12) through the gap between the flow limiting inner core (43) and the flow limiting cover (42).
3. The vertical water replenishing type inlet valve according to claim 2, wherein One end of the flow limiting cover (42) is provided with a second annular surface (421). The flow limiting inner core (43) includes a second annular rib (431). The second annular rib (431) is tightly fitted with the inner wall of the flow limiting cover (42). A plurality of through holes (432) are provided in the second annular rib (431). A second sealing ring (44) is sleeved outside the flow limiting inner core (43). The second sealing ring (44) abuts against the second annular surface (421) and the second annular rib (431) respectively.
4. The vertical water replenishing type water inlet valve according to claim 2, characterized in that, The flow limiting device (4) further includes a housing (41). The flow limiting cover (42) is inserted into the housing (41). The annular outside of the flow limiting cover (42) is tightly fitted with the inner wall of the housing (41). One end of the housing (41) is provided with a first annular surface (412). One end of the flow limiting cover (42) abuts against the inside of the first annular surface (412).
5. The vertical water replenishing type inlet valve according to claim 4, characterized in that, A first sealing ring (5) is installed in the plate heat exchanger inlet (13). The annular outer wall of the first sealing ring (5) is tightly fitted with the inner wall of the plate heat exchanger inlet (13). The flow limiting device (4) is installed in the first sealing ring (5).
6. The vertical water replenishing type water inlet valve according to claim 5, wherein The annular outside of the housing (41) is provided with a first annular rib (411). An annular groove (51) is provided inside the first sealing ring (5). The first annular rib (411) is inserted into the annular groove (51) for positioning.
7. The vertical water replenishing type water inlet valve according to claim 1, wherein, The valve body (1) further includes a second installation cavity (16), a first water replenishing channel (17), a second water replenishing channel (18) and a third water replenishing channel (19). A water replenishing valve rod (3) is installed in the second installation cavity (16). The first water replenishing channel (17) is communicated with the first installation cavity (12). The first water replenishing channel (17) is communicated or blocked with the second water replenishing channel (18) through the water replenishing valve rod (3). The second water replenishing channel (18) is communicated with the third water replenishing channel (19). The third water replenishing channel (19) is communicated with the water pump interface (15). The first installation cavity (12), the first water replenishing channel (17), the second water replenishing channel (18), the third water replenishing channel (19) and the water pump interface (15) form a water replenishing waterway.
8. The vertical water replenishing type water inlet valve according to claim 7, wherein, The second installation cavity (16) is arranged with its opening facing downwards, the first water replenishing channel (17) and the third water replenishing channel (19) are arranged horizontally, the second water replenishing channel (18) is arranged vertically, the lower end of the first water replenishing channel (17) can be communicated with or blocked from the second water replenishing channel (18), and the upper end of the third water replenishing channel (19) is communicated with the second water replenishing channel (18).
9. The vertical water replenishing type inlet valve according to claim 8, wherein, The second installation cavity (16) is coaxially arranged with the second water replenishing channel (18). The water replenishing valve stem (3) includes a boss (31) at its upper end. A sealing gasket (32) is sleeved outside the boss (31). The water replenishing valve stem (3) can move up and down so that the upper part of the sealing gasket (32) abuts against and blocks the lower end of the second water replenishing channel (18) or disengages from the lower end of the second water replenishing channel (18). The second installation cavity (16) includes a connection cavity (161) and a sealing cavity (162) located above the connection cavity (161). A first sealing ring (33) is sleeved outside the water replenishing valve stem (3). The water replenishing valve stem (3) and the sealing cavity (162) are sealed by the first sealing ring (33). The water replenishing valve stem (3) and the connection cavity (161) are connected by threads.
10. The vertical water replenishing type water inlet valve according to claim 1, characterized in that, The flow sensor (2) includes an impeller (21). The impeller (21) is located in the first installation cavity (12). A second sealing ring (6) is installed in the plate heat exchanger outlet (14). An inlet joint (7) is installed in the water inlet interface (11). A filter screen (8) is installed in the inlet joint (7).