Wall-hanging stove plate-replacing machine and plate-replacing waterway structure

Abstract

The utility model belongs to the field of water changing path structures, particularly relates to a wall-hanging stove plate-type heat exchanger plate-type water changing path structure, and aims to solve the problem that a rear-end pipeline and a plate-type heat exchanger bear excess pressure load when the pressure at the front end is abnormally increased due to the fact that an existing structure cannot regulate and control the overall pressure balance of a system. The plate heat exchanger comprises a plate heat exchanger body, a water outlet valve and a water inlet valve are fixedly communicated with the two sides of the top of the plate heat exchanger body respectively, and needle type temperature probe mounting holes are formed in the top and one side of the water inlet valve; an overpressure prevention assembly is arranged on the water outlet valve and used for protecting the whole heating water system, and the overpressure condition is avoided. Through the arrangement of the anti-overpressure assembly, the system is effectively prevented from being damaged due to overpressure, safe and stable operation of a heating waterway is guaranteed, the service life of equipment is prolonged, meanwhile, the fault risk caused by overpressure is reduced, and the overall reliability and safety of the system are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of water exchange circuit structure, and in particular to a water exchange circuit structure for a wall-mounted boiler plate water exchange plate. Background Technology

[0002] The plate heat exchanger system of a wall-mounted boiler is a highly efficient and stable hot water supply system. Its core is the plate heat exchanger. This system switches the flow of heating water and domestic hot water through a three-way valve. When domestic hot water is needed, heating water enters the plate heat exchanger, exchanges heat with tap water, and is quickly heated before being output for immediate supply. When in heating mode, heating water directly supplies heat to the heating equipment through the main circulation system.

[0003] Currently, existing wall-mounted boiler plate heat exchanger structures often focus on the conventional protection of the front end of the heating water system (such as the heating outlet pipe), but neglect the dynamic monitoring of the overall system pressure balance. In particular, when the front end pressure rises abnormally due to scaling, foreign object blockage, etc. at the heating outlet, there is a lack of effective regulation, which causes the downstream pipes and plate heat exchangers to bear excessive pressure load. Under long-term operation, this can easily lead to systemic failures such as pipe bursts and heat exchanger leaks. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot regulate the overall pressure balance of the system, leading to abnormal increases in front-end pressure and causing excessive pressure loads on the back-end pipelines and plate heat exchangers. This invention proposes a wall-mounted boiler plate heat exchanger and water exchanger structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wall-mounted boiler plate heat exchanger / water circuit replacement structure includes:

[0007] The plate heat exchanger body has an outlet valve and an inlet valve fixedly connected to the top two sides of the plate heat exchanger body, respectively. The inlet valve has a needle temperature probe mounting hole on its top and one side, and a Hall sensor wire group is electrically connected to the bottom of the inlet valve.

[0008] The outlet valve is equipped with an overpressure protection component, which is used to protect the entire heating water system and prevent overpressure from occurring.

[0009] In one possible design, the overpressure protection assembly includes a bypass valve disposed on the outlet valve, the bypass valve being connected to the outlet valve, a guide seat being disposed inside the bypass valve, a spindle being slidably disposed through one side of the guide seat, a spring being sleeved on the outside of the spindle, one end of the spring being fixedly connected to the spindle, and the other end of the spring being fixedly connected to the inner wall of the bypass valve.

[0010] In one possible design, one side of the outlet valve is symmetrically and fixedly connected to a heating outlet and a hot water outlet, the other side of the outlet valve is detachable from a plastic adapter via a snap-fit, and the top of the outlet valve is fixedly connected to a heating inlet.

[0011] In one possible design, the outlet valve is internally equipped with a linkage shaft, and the outlet valve is equipped with a heating upper sealing water group and a heating lower sealing water group at both ends of the linkage shaft. The heating upper sealing water group is close to the plastic conversion seat, and the heating lower sealing water group is close to the heating outlet interface.

[0012] In one possible design, a water flow sensor is installed inside the water inlet valve, a water pump interface is fixedly connected to one side of the water inlet valve, a cold water inlet interface is fixedly connected to the diagonal side of the water pump interface, and an adjustment handle is provided next to the water inlet valve above the cold water inlet interface.

[0013] In one possible design, a flow-limiting ring is fixedly installed inside the cold water inlet interface, and a filter screen is fixedly installed inside the cold water inlet interface outside the flow-limiting ring.

[0014] In this application, when starting to use the device, first install the whole device in a suitable position, then connect the heating water outlet, hot water outlet, heating water inlet, bypass valve, cold water inlet and water pump interface to the corresponding pipes, and connect the Hall sensor wire group to the corresponding equipment or electrical appliances. Then install the needle temperature probe in the two needle temperature probe mounting holes. After everything is assembled.

[0015] The system is then started. During startup, the water pressure switch controls water replenishment, and the water flow sensor detects the water pressure at the inlet valve. If the water pressure is lower than the set value, the system alarms and stops operating, prompting the user to replenish water. The temperature probe inside the needle-type temperature probe mounting hole monitors the inlet water temperature in real time, and the Hall sensor array detects the water flow status. If the water flow is abnormal (e.g., no water flow or excessively low flow rate), the system alarms and stops operating. At this time, the water pump connected to the water pump interface starts, drawing cold water into the inlet valve through the cold water inlet interface. Simultaneously, the linkage shaft rotates, driving the heating lower sealing water group to open, and the heating... When the upper sealing water group is closed, hot water flows to the heating system (such as underfloor heating or radiators) through the heating outlet. If the heating system pressure exceeds the set value, the spindle inside the bypass valve moves under pressure, compressing the spring and opening the bypass valve. Excess water is discharged, reducing the system pressure. After circulating in the heating system, the hot water flows back to the outlet valve through the heating inlet and then enters the plate heat exchanger body for reheating, forming a cycle. When the user turns on the hot water tap, the linkage shaft rotates in the opposite direction, driving the upper sealing water group of the heating system to open and the lower sealing water group of the heating system to close. Hot water flows to the domestic hot water system through the hot water outlet.

[0016] When water needs to be added, turn the adjusting handle (the adjusting handle is the water replenishment valve assembly) to add water to the system, ensuring normal water pressure. Cold water passes through the filter screen to filter impurities, and the flow limiting ring limits the maximum flow rate to protect the water pump and plate heat exchanger body. If the system alarms, the user can quickly disassemble the outlet valve through the plastic conversion seat to check whether the internal components (such as the linkage shaft and sealing water assembly) are damaged.

[0017] This utility model has the following beneficial effects:

[0018] The needle-type temperature probe can be conveniently and securely installed through the needle-type temperature probe mounting hole in this invention, enabling real-time and accurate monitoring of the inlet water temperature. This provides reliable temperature data support for system operation, helps the system to make intelligent adjustments based on temperature changes, and improves the overall safety and stability of operation.

[0019] By incorporating an overpressure protection component, this invention can automatically activate and adjust the pressure when the heating system pressure exceeds a set threshold. This effectively prevents system damage due to overpressure, ensures the safe and stable operation of the heating water circuit, extends equipment lifespan, reduces the risk of malfunctions caused by overpressure, and enhances the overall reliability and safety of the system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a wall-mounted boiler plate water exchanger structure proposed in this utility model;

[0021] Figure 2 This is a top view schematic diagram of the overall structure of the wall-mounted boiler plate water exchanger structure proposed in this utility model;

[0022] Figure 3 This is a top view and a cross-sectional view of the water outlet valve and water inlet valve of a wall-mounted boiler plate water exchanger structure proposed in this utility model.

[0023] Figure 4 This is a schematic side view of the overall structure of the wall-mounted boiler plate water exchanger structure proposed in this utility model.

[0024] Figure 5 This is a cross-sectional view of the bypass valve in the water circuit replacement structure of a wall-mounted boiler plate water exchanger proposed in this utility model.

[0025] In the diagram: 1. Plate heat exchanger body; 2. Outlet valve; 201. Linkage shaft; 202. Heating upper sealing water assembly; 203. Heating lower sealing water assembly; 3. Inlet valve; 301. Water flow sensor; 302. Water pump interface; 4. Plastic adapter; 5. Heating outlet interface; 6. Hot water outlet interface; 7. Heating inlet interface; 8. Bypass valve; 801. Guide seat; 802. Mandrel; 803. Spring; 9. Cold water inlet interface; 901. Flow limiting ring; 902. Filter screen; 10. Needle temperature probe mounting hole; 11. Adjustment handle; 12. Hall sensor wiring harness. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Reference Figure 1-5 A water exchange system structure, comprising:

[0029] The plate heat exchanger body 1, as the core heat exchange unit, is fixedly installed inside the wall-hung boiler. The top two sides are connected to the outlet valve 2 and the inlet valve 3 through flanges or threads, forming independent heating and hot water circuits that do not interfere with each other. The outlet valve 2 is symmetrically provided with a heating outlet port 5 and a hot water outlet port 6 on one side, which are connected to the heating system such as underfloor heating and domestic hot water system pipelines through rubber sealing rings, respectively. The other side is connected to the plastic conversion seat 4 through a snap-fit ​​structure. The snap-fit ​​is designed for quick disassembly, which facilitates the maintenance of the internal linkage shaft 201 and the sealing water assembly. The top of the outlet valve 2 is fixedly connected to the heating inlet port 7, which is connected to the heating return water pipeline through threads. The outlet valve 2 is equipped with a linkage shaft 201 inside, which is driven to rotate by a motor or mechanical drive. The upper heating sealing water assembly 202 and the lower heating sealing water assembly 203 are installed at the two ends of the external part of the linkage shaft 201, respectively. The rotation realizes the switching between heating and hot water modes.

[0030] The top and one side of the inlet valve 3 have needle-type temperature probe mounting holes 10, which can be used to install temperature probes to monitor the inlet water temperature in real time. The probes are fixed by threads or clips. The bottom of the inlet valve 3 is electrically connected to the Hall sensor wiring harness 12. The wiring harness is connected to the control system through a waterproof connector to detect the water flow status and provide feedback signals. The inlet valve 3 is equipped with a water flow sensor 301, which is fixed by threads or welding to monitor the inlet water flow in real time. One side of the inlet valve 3 is connected to the water pump interface 302, and the other side is connected to the cold water inlet interface 9. All interfaces use standard threaded connections for easy installation and maintenance.

[0031] The adjusting handle 11, as a water supply valve assembly, is installed on the side wall of the inlet valve 3 by thread or snap, and the system pressure is adjusted by manual rotation.

[0032] The overpressure protection assembly includes a bypass valve 8 located on the side wall of the outlet valve 2. The bypass valve 8 is connected to the heating outlet port 5 and fixed by welding or threaded connection. A guide seat 801 is installed inside the bypass valve 8, fixed to the inner wall of the bypass valve 8 by thread or welding. A guide hole is opened in the center of the guide seat 801, through which a spindle 802 is slidably disposed. A spring 803 is sleeved on the outside of the spindle 802. One end of the spring 803 is welded to or abuts against the spindle 802, and the other end is welded to or abuts against the inner wall of the bypass valve 8, forming a compressible elastic structure. The bypass valve 8 is connected to the heating outlet port 5.

[0033] A flow-limiting ring 901 is fixedly installed inside the cold water inlet interface 9. The flow-limiting ring 901 is fixed to the inner wall of the interface by welding or snap-fit ​​to limit the maximum flow rate. A filter screen 902 is installed on the outside of the flow-limiting ring 901. The filter screen 902 is fixed by snap-fit ​​or thread to prevent impurities from entering the system.

[0034] This application can be used in the field of wall-hung boiler plate replacement plate and water circuit replacement technology, and can also be used in other fields applicable to this application.

[0035] Example 2

[0036] Based on Embodiment 1, Embodiment 2 further includes: a wall-mounted boiler plate water exchanger structure, which is applied to the field of wall-mounted boiler plate water exchanger technology. A flow-limiting ring 901 is fixedly installed inside the cold water inlet interface 9. The flow-limiting ring 901 is fixed to the inner wall of the interface by welding or snap fasteners to limit the maximum flow rate. A filter screen 902 is installed on the outside of the flow-limiting ring 901. The filter screen 902 is fixed by snap fasteners or threads to prevent impurities from entering the system.

[0037] However, as is well known to those skilled in the art, the working principle and wiring method of the plate heat exchanger body 1, the water flow sensor 301 and the Hall sensor wiring group 12 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wall-mounted boiler plate water exchanger structure, characterized in that, include: Plate heat exchanger body (1), with outlet valve (2) and inlet valve (3) fixedly connected on the top two sides of the plate heat exchanger body (1), and needle temperature probe mounting holes (10) are opened on the top and one side of the inlet valve (3), and Hall sensor wire group (12) is electrically connected to the bottom of the inlet valve (3). The outlet valve (2) is equipped with an overpressure protection component, which is used to protect the entire heating water system and prevent overpressure from occurring.

2. The wall-mounted boiler plate heat exchanger plate water circuit structure according to claim 1, characterized in that, The overpressure protection assembly includes a bypass valve (8) disposed on the outlet valve (2). The bypass valve (8) is connected to the outlet valve (2). A guide seat (801) is disposed inside the bypass valve (8). A spindle (802) is slidably disposed through one side of the guide seat (801). A spring (803) is sleeved on the outside of the spindle (802). One end of the spring (803) is fixedly connected to the spindle (802), and the other end of the spring (803) is fixedly connected to the inner wall of the bypass valve (8).

3. The wall-mounted boiler plate heat exchanger plate water circuit structure according to claim 1, characterized in that, The outlet valve (2) has a heating outlet port (5) and a hot water outlet port (6) symmetrically fixedly connected on one side. The other side of the outlet valve (2) has a plastic conversion seat (4) that can be detached and disassembled by a buckle. The top of the outlet valve (2) has a heating inlet port (7) fixedly connected.

4. The wall-mounted boiler plate heat exchanger plate water circuit structure according to claim 3, characterized in that, The water outlet valve (2) is internally equipped with a linkage shaft (201). The water outlet valve (2) is internally equipped with a heating upper sealing water group (202) and a heating lower sealing water group (203) at both ends of the linkage shaft (201). The heating upper sealing water group (202) is close to the plastic conversion seat (4), and the heating lower sealing water group (203) is close to the heating water outlet (5).

5. The wall-mounted boiler plate heat exchanger plate water circuit structure according to claim 1, characterized in that, The water inlet valve (3) is equipped with a water flow sensor (301). A water pump interface (302) is fixedly connected to one side of the water inlet valve (3). A cold water inlet interface (9) is fixedly connected to the diagonal side of the water pump interface (302) of the water inlet valve (3). An adjustment handle (11) is provided above the cold water inlet interface (9) next to the water inlet valve (3).

6. The wall-mounted boiler plate heat exchanger plate water circuit structure according to claim 5, characterized in that, A flow-limiting ring (901) is fixedly installed inside the cold water inlet (9), and a filter screen (902) is fixedly installed inside the cold water inlet (9) outside the flow-limiting ring (901).

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