Bag type structure valve and heating system

Abstract

The utility model provides a bag type structure valve and a heating system, the bag type structure valve comprises a valve body, the valve body is provided with a water inlet cavity A and a water outlet cavity B, the water inlet cavity A and the water outlet cavity B are communicated through a main flow guide hole, the water inlet cavity A and the water outlet cavity B are connected and disconnected through a bag type structure, and the bag type structure comprises a sheet body part and a bag body part; the bag body part is arranged in the main flow guide hole, and a cavity C in the bag body part upwards penetrates through the bag type structure. The valve has the advantages of smooth opening and closing, long service life, low power consumption and the like.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of control valves, in particular to a bladder structure valve and a heating system. BACKGROUND

[0002] In the inventor's previous patent technology (publication number: CN221172409U, name: A heating water leakage protection device), a control valve structure for heating water leakage detection is disclosed, which reduces noise and avoids water hammer phenomenon through the cooperation of the sealing gasket and the damping rod. In this structure, the sealing gasket needs to cooperate with the return spring to ensure the normal operation of the sealing gasket. The structure is relatively complex, the service life is limited, the flow resistance is large, and the control precision needs to be improved.

[0003] In the inventor's previous patent technology (publication number: CN114658881A, name: An electric heating water leakage automatic closing system and a water leakage detection method), a structure for automatically detecting heating water leakage is disclosed, which controls the opening or closing of the water flow passage through the deformation of the diaphragm. The diaphragm needs to use a permanent magnet and a suction cup for assistance when deformed. The structure is relatively complex, the service life is limited, and the flow resistance is large.

[0004] In the inventor's previous patent technology (publication number: CN218268582U, name: A mute valve for heating water leakage detection), a structure for automatically detecting heating water leakage is disclosed, which controls the opening and closing of the water flow main passage through the sealing diaphragm. The diaphragm needs to cooperate with the movable push rod and the return spring to achieve deformation. The structure is relatively complex, the service life is limited, the flow resistance is large, and the control precision needs to be improved.

[0005] For traditional planar sealing structure diaphragm valves, the initial working pressure difference requirement is high. The greater the pressure difference, the greater the auxiliary force (such as spring) required to close the valve. Otherwise, the valve is difficult to close. In some use scenarios, such as the above-mentioned home heating scenario, the pressure difference in the pipeline is very low. The flow resistance of the traditional diaphragm valve structure is large and cannot meet the use requirements, so it is necessary to further improve. SUMMARY

[0006] To solve the problems of the prior art, the present application combines the prior art and is based on practical application. A bladder structure valve is provided, which has the characteristics of smooth opening and closing, long service life, low power consumption, and small required pressure difference for opening. It is especially suitable for use in scenarios with small pipeline pressure difference, such as home heating water leakage detection.

[0007] The technical scheme of the present application is as follows:

[0008] According to one aspect of the present application, a capsule structure valve is provided, comprising a valve body, the valve body is provided with a water inlet cavity A and a water outlet cavity B, the water inlet cavity A and the water outlet cavity B are communicated through a main flow hole, the water inlet cavity A and the water outlet cavity B are connected and disconnected through a capsule structure, characterized in that the capsule structure comprises a sheet body part and a capsule body part, the capsule body part is arranged in the main flow hole, and a cavity C in the capsule body part penetrates the capsule structure upward.

[0009] Further, the capsule body part is a cylindrical or conical cylinder structure, the bottom of the capsule body part is closed, and an opening is arranged on the sheet body part to communicate with the cavity C, so that the cavity C penetrates the capsule structure upward.

[0010] Further, the diameter of the opening is smaller than the diameter of the cavity C.

[0011] Further, a spring is arranged at the capsule structure to exert force on it.

[0012] Further, the capsule body part is gap-fitted with the main flow hole.

[0013] Further, a valve body baffle is arranged in the valve body, the valve body baffle forms the water inlet cavity A and the water outlet cavity B on both sides of the main water flow channel of the valve body respectively, and the side of the valve body baffle close to the water outlet cavity B is the main flow hole.

[0014] Further, a small hole inlet channel and a small hole outlet channel are arranged in the valve body, the small hole inlet channel is communicated with the water inlet cavity A, the small hole outlet channel is communicated with the water outlet cavity B, the cavity C is communicated with the small hole inlet channel, and the small hole inlet channel and the small hole outlet channel are connected and disconnected through a control member.

[0015] Further, the aperture of the small hole inlet channel is smaller than the aperture of the small hole outlet channel, and the flow of the small hole inlet channel is smaller than the flow of the small hole outlet channel.

[0016] Further, when the small hole inlet channel and the small hole outlet channel are disconnected, the pressure of the water inlet cavity A is equal to the pressure of the cavity C, which is greater than the pressure of the water outlet cavity B, the capsule structure is lowered to close the main flow hole, and when the small hole inlet channel and the small hole outlet channel are communicated, the pressure of the cavity C is equal to the pressure of the water outlet cavity B, which is less than the pressure of the water inlet cavity A, the capsule structure is raised to open the main flow hole.

[0017] According to another aspect of the present application, a heating system is provided, which uses the above-mentioned capsule structure valve to detect water leakage.

[0018] The beneficial effects of the present application are as follows:

[0019] The application improves the traditional diaphragm structure in the valve body, so that the capsule structure can be deformed flexibly according to the pressure condition of each chamber, thereby realizing the on-off control of the main water flow channel. Compared with the traditional structure, the valve body realizes smooth opening and closing of the valve, has the advantages of long service life, low power consumption, small starting pressure difference and reduced water hammer phenomenon;

[0020] Compared with the traditional diaphragm valve structure, the valve body can be smoothly closed without spring and pressure difference, and when the pressure difference is large, the valve can be closed quickly, and when the pressure difference is small, the valve can be quickly closed with the aid of weak spring force.

[0021] In the application, the improved capsule structure is applied to the household heating scene, and flexible opening and closing actions can be performed under the condition of small pressure difference of the heating pipeline. The pressure of the C chamber changes by controlling the on-off of the small hole, forming a changing force, so that the capsule structure rises and falls to realize the on-off of the main water flow channel, the power consumption is small, the water leakage of the heating system can be detected with high precision, the water leakage pressure can be quickly closed, and the automatic control during the water leakage detection is easy. BRIEF DESCRIPTION OF DRAWINGS

[0022] ATTACHMENT Figure 1 It is the principle structure diagram of the application.

[0023] ATTACHMENT Figure 2 It is the capsule structure diagram of the application.

[0024] ATTACHMENT Figure 3 It is another structure diagram of the capsule structure of the application.

[0025] ATTACHMENT Figure 4 It is another structure diagram of the capsule structure of the application.

[0026] ATTACHMENT Figure 5 It is the application example structure of the capsule structure valve of the application Figure 1 .

[0027] ATTACHMENT Figure 6 It is the application example structure of the capsule structure valve of the application Figure 2 .

[0028] ATTACHMENT Figure 7 It is the application example structure of the capsule structure valve of the application Figure 3 .

[0029] Reference signs shown in the drawings:

[0030] 1, valve body; 2, water inlet cavity A; 3, water outlet cavity B; 4, small hole inlet channel; 5, small hole outlet channel; 6, capsule structure; 61, sheet body; 62, capsule body; 63, cavity C; 64, opening; 7, control member; 8, valve body baffle; 9, main flow guide hole; 10, outlet pressure sensor; 11, inlet pressure sensor; 12, control system; 13, spring. DETAILED DESCRIPTION

[0031] The present application will be further described with reference to the drawings and specific examples. It should be understood that these examples are only used to illustrate the present application and not used to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the present application.

[0032] The present embodiment provides a capsule structure valve. Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , it is a schematic diagram of the related structure of the capsule structure valve.

[0033] The capsule structure valve mainly includes a valve body 1, a main water flow channel is arranged in the valve body 1, that is, a water inlet cavity A and a water outlet cavity B, the water inlet cavity A 2 and the water outlet cavity B 3 are separated by a valve body baffle 8, one side of the valve body baffle 8 is a main flow guide hole 9, the main flow guide hole 9 is used to communicate the water inlet cavity A 2 and the water outlet cavity B 3. The capsule structure 6 is used to control the on-off of the main flow guide hole 9 by lifting, so as to realize the on-off control of the water inlet cavity A 2 and the water outlet cavity B 3.

[0034] In the present embodiment, referring to Figure 2As shown, the capsule structure 6 includes a sheet portion 61 and a capsule portion 62. The sheet portion 61 is mainly used to close the main flow hole 9, and the size thereof should be greater than that of the main flow hole 9. In the present application, the specific shape of the sheet portion 61 is not limited, and it should be able to meet the requirement that the main flow hole 9 can be closed by cooperating with the capsule portion 62 when the valve needs to be closed. The sheet portion 61 can be in the form of a sheet, an irregular profile, a curved surface or a conical structure. The outer diameter of the sheet portion 61 is greater than that of the capsule portion 61, and the capsule portion 61 is in the form of a cylindrical or conical barrel, has a cavity C63 inside, and the bottom of the cavity C63 is closed and the top is provided with an opening 64, so that the cavity C63 can be in communication with the outside through the upper opening 64. In one scheme provided in the present embodiment, the diameter of the opening 64 is smaller than that of the cavity C63, so as to facilitate the processing and forming of the capsule structure 6. Of course, even if the diameter of the opening 64 is not smaller than that of the cavity C63, it can also achieve its function. The capsule structure 6 is in a flexible structure, and can be integrally formed or separately processed and then combined.

[0035] In the present application, Figure 2 A schematic view of one structural form of the capsule structure is provided, Figure 3 One structural form is provided, Figure 4 Another structural form is provided. It should be understood that the overall shape of the capsule structure 6 can be changed according to actual conditions, and is not limited to the several styles provided in the present application, but the changed structure should also fall within the protection scope of the present application.

[0036] In the present embodiment, the capsule structure 6 is installed as follows: the sheet portion 61 is on the top, the capsule portion 62 is on the bottom, the capsule portion 61 is installed inside the main flow hole 9, and the outer diameter of the capsule portion 62 is smaller than the hole diameter of the main flow hole 9, so that a gap is formed between the capsule portion 62 and the main flow hole 9. Of course, it should be understood that when the capsule portion 62 is designed in a flexible structure, even if the capsule portion 62 is in an interference fit with the main flow hole 9, the fluid can also pass through after the capsule portion 62 is deformed by extrusion.

[0037] Further, a secondary water flow channel is also provided in the valve body 1, i.e., a small hole inlet channel 4 and a small hole outlet channel 5. The small hole inlet channel 4 is in communication with the water inlet cavity A2, the small hole outlet channel 5 is in communication with the water inlet cavity B3, and the cavity C63 is in communication with the small hole inlet channel 4 through the opening 64. The small hole inlet channel 4 and the small hole outlet channel 5 are controlled to be in communication or not in communication by the control member 7. In the present embodiment, the specific structure of the control member 7 is not limited, and it can be an electromagnet, a motor or a manually operated member, as long as it can control the secondary water flow channel to be in communication or not in communication. The control member 7 is preferably an electromagnet which has a mature structure and high stability.

[0038] In the above structure of the embodiment, the on-off control of the main water flow passage is realized by controlling the sub water flow passage. That is, the on-off of the small hole is controlled by the control member 7, the pressure of the cavity C63 is changed, the changing force is formed, the capsule structure 6 is raised and lowered, and the on-off of the main water flow is realized, thereby controlling the on-off of the main water flow with smaller power consumption.

[0039] Specifically, in the water supply system, there is a pressure difference from the inlet to the outlet, so the pressure of the water inlet cavity A2 is greater than the pressure of the water outlet cavity B3. The hole diameter of the small hole inlet passage 4 is smaller than the hole diameter of the small hole outlet passage 5, and the flow of the small hole inlet passage 4 is smaller than the flow of the small hole outlet passage 5. When the small hole inlet passage 4 and the small hole outlet passage 5 are closed under the action of the control member 7 (i.e. when the sub water flow passage is closed), at this time the pressure of the water inlet cavity A2 is equal to the pressure of the cavity C63 and greater than the pressure of the water outlet cavity B3. This pressure relationship forms a downward force on the capsule structure 6, causing the capsule structure 6 to descend, and the capsule structure 6 blocks the main water flow passage by the sheet body 61 and the capsule body 62, causing the water inlet cavity A2 and the water outlet cavity B3 to be disconnected. Conversely, when the sub water flow passage is opened under the action of the control member 7, the pressure of the cavity C63 is equal to the pressure of the water outlet cavity B3 and less than the pressure of the water inlet cavity A2. This pressure relationship forms an upward force on the capsule structure 6, causing the capsule structure 6 to rise, and the main water flow passage is open, and the water flow of the water inlet cavity A2 enters the water outlet cavity B3 through the gap between the capsule body 62 and the main flow guide hole 9.

[0040] In the traditional valve structure, the descent of the capsule structure 6 needs to be assisted by a spring or a magnet to overcome the large resistance of the water flow. In the related structure provided in the embodiment, because the capsule body 63 is arranged in the main flow guide hole 9, the resistance of the water is small when the capsule structure 6 descends, so that the capsule structure 6 can still be flexibly lowered under the condition that the pressure difference between the water inlet cavity A2 and the water outlet cavity B3 is small, without the need for spring assistance or only with weak spring assistance.

[0041] Reference Figure 5 As shown in the figure, it is an application example one of the capsule structure valve provided in the embodiment. The capsule structure valve is applied to a heating system scene. In this structure, the control member 7 adopts an electromagnet to realize the on-off control of the small hole, and the inlet pressure sensor 11 and the outlet pressure sensor 10 are arranged in the sub water flow passage to detect the pressure in the passage, to determine whether the heating water leaks, and then the electromagnet is controlled to act through the signal of the control system 12, to finally realize the on-off control of the main water flow passage.

[0042] Reference Figure 6As shown, it is the second application example of the bladder structure valve provided in the embodiment. The on-off of the secondary water flow channel can be controlled by a remote controller. The valve body structure provided in the embodiment can be smoothly opened and closed without spring assistance. However, for the case of small pressure difference, the valve body closing speed is slow. For some scenes where the pressure difference is small and the valve body needs to be quickly closed, a weak auxiliary spring can be arranged, that is, a spring 13 with weak elasticity is arranged on the upper part of the bladder structure 6. With the assistance of the spring 13, the valve body can be quickly closed under the condition of low pressure difference. When applied in the daily pipeline system, it has the advantages of low power consumption, long service life, and reduction of water hammer phenomenon.

[0043] Reference Figure 7 As shown, it is the third application example of the bladder structure valve provided in the embodiment. In the embodiment, the on-off of the secondary water flow can be controlled by manually operating the handle to realize the opening and closing operation of the valve body. When applied in the daily pipeline system, it has the advantages of simple operation, low power consumption, long service life, and reduction of water hammer phenomenon.

Claims

1. A bladder-type valve, comprising a valve body, wherein the valve body is provided with an inlet chamber A and an outlet chamber B, the inlet chamber A and the outlet chamber B being connected through a main flow orifice, characterized in that, The inlet chamber A and outlet chamber B are connected and disconnected through a bladder-like structure. The bladder-like structure includes a sheet portion and a bladder portion. The bladder portion is disposed inside the main flow hole, and the cavity C inside the bladder portion extends upward through the bladder-like structure.

2. The bladder-type valve according to claim 1, characterized in that, The capsule body is a cylindrical or conical structure with a closed bottom. An opening is provided on the sheet body to communicate with the cavity C, allowing the cavity C to pass through the capsule structure upwards.

3. The bladder-type valve according to claim 2, characterized in that, The diameter of the opening is smaller than the diameter of the cavity C.

4. The bladder-type valve according to claim 1, characterized in that, A spring is provided at the bladder-like structure to apply force to it.

5. The bladder-type valve according to claim 1, characterized in that, The bladder body and the main flow hole are fitted with a clearance.

6. The bladder-type valve according to claim 1, characterized in that, A valve body baffle is provided inside the valve body, which causes the inlet chamber A and the outlet chamber B to be formed on both sides of the main water flow channel of the valve body, respectively. The main flow hole is located on the side of the valve body baffle closer to the outlet chamber B.

7. The bladder-type valve according to any one of claims 1-6, characterized in that, The valve body is provided with a small orifice inlet channel and a small orifice outlet channel. The small orifice inlet channel is connected to the water inlet chamber A, the small orifice outlet channel is connected to the water outlet chamber B, and the chamber C is connected to the small orifice inlet channel. The small orifice inlet channel and the small orifice outlet channel are controlled by a control component to achieve on / off switching.

8. The bladder-type valve according to claim 7, characterized in that, The orifice diameter of the orifice inlet channel is smaller than that of the orifice outlet channel, and the flow rate of the orifice inlet channel is smaller than that of the orifice outlet channel.

9. The bladder-type valve according to claim 7, characterized in that, When the orifice inlet channel and orifice outlet channel are disconnected, the pressure in inlet chamber A is equal to the pressure in chamber C, which is greater than the pressure in outlet chamber B. The bladder-like structure descends to close the main flow orifice. When the orifice inlet channel and orifice outlet channel are connected, the pressure in chamber C is equal to the pressure in outlet chamber B, which is less than the pressure in inlet chamber A. The bladder-like structure rises to open the main flow orifice.

10. A heating system, characterized in that, Includes the bladder-type valve as described in any one of claims 1-9.

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