Hydrophobic device, hydrophobic valve and heating apparatus

Abstract

The present application relates to the technical field of hydrophobic device, and discloses a hydrophobic device, a hydrophobic valve and a heating equipment.The hydrophobic device comprises a valve cover structure, a hydrophobic structure and a rotating structure.The valve cover structure comprises a valve cover, the lower surface of the valve cover is concave to form a cavity, and the upper surface is provided with a first through hole communicating with the cavity;the hydrophobic structure is arranged in the cavity and forms a hydrophobic cavity together with the valve cover, and the rotating structure is rotatably connected to the first through hole and used for driving the hydrophobic structure to rotate.The hydrophobic structure comprises a first hydrophobic flow channel and at least two Venturi nozzles, the Venturi nozzles are arranged around the first hydrophobic flow channel, and the distance from the axis of the Venturi nozzles to the axis of the first hydrophobic flow channel is equal.When the rotating structure drives the hydrophobic structure to rotate, different Venturi nozzles rotate, thereby realizing the change of the hydrophobic amount of the hydrophobic device.The hydrophobic valve and the heating equipment comprising the hydrophobic device have all the advantages of the hydrophobic device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrophobic valve flow regulation, in particular to a hydrophobic device, a hydrophobic valve and a heating device. BACKGROUND

[0002] Venturi hydrophobic valves are used to automatically remove steam condensate and air and other non-condensable gases in steam pipelines or heating devices. In the actual use process of customers, due to changes in production processes as the product being processed changes, the steam in the pipeline changes greatly, at which time the Venturi hydrophobic valve of the steam pipeline needs to be replaced to enable the heating device to normally drain. The heating device often has multiple Venturi hydrophobic valves, and the Venturi hydrophobic valve is generally connected to the pipeline through a flange, and the process of disassembling and assembling the entire hydrophobic valve is complicated and time-consuming, wasting a lot of time and delaying production. SUMMARY

[0003] The present application discloses a hydrophobic device, a hydrophobic valve and a heating device, which can switch different Venturi nozzles according to different production needs, solving the problem of delayed production due to replacement of hydrophobic valves.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] The hydrophobic device comprises:

[0006] The valve cover structure comprises a valve cover and a first through hole, the lower surface of the valve cover is concave to form a cavity, and the first through hole penetrates the upper and lower surfaces of the cover.

[0007] The hydrophobic structure is arranged in the cavity and encloses the hydrophobic cavity with the valve cover, the hydrophobic structure comprises a hydrophobic element, the hydrophobic element is provided with a first hydrophobic flow channel and at least two Venturi nozzles, and the plurality of Venturi nozzles are arranged circumferentially along the first hydrophobic flow channel.

[0008] The rotating structure is rotatably connected to the first through hole and is used to drive the hydrophobic element to rotate to switch different Venturi nozzles.

[0009] Preferably, the rotating structure comprises a rotating rod and a connecting block, the rotating rod penetrates the first through hole, and the connecting block is fixedly connected to the lower part of the rotating rod and abuts against the upper part of the inner wall of the first hydrophobic flow channel.

[0010] Preferably, the first hydrophobic flow channel comprises a first part and a second part, the first part is located above the second part, the first part is used to limit the connecting block so that it cannot rotate relative to the hydrophobic element, and the second part is used to communicate with the drain passage of the hydrophobic valve body.

[0011] Preferably, the shape of the horizontal section of the first part is the same as the shape of the horizontal section of the connecting block, and the shape of the section is polygonal.

[0012] Preferably, the connecting block is connected with the first part in a clearance manner.

[0013] Preferably, a second through hole communicating the hydrophobic cavity and the second part is arranged on the connecting block, and a plurality of second through holes are arranged.

[0014] Preferably, the hydrophobic structure further comprises a first sealing ring and a second sealing ring, both of which are clamped to the lower surface of the hydrophobic element; the first sealing ring is used for sealing the first hydrophobic flow channel, and the second sealing ring is used for sealing the Venturi nozzle together with the first sealing ring.

[0015] Preferably, the valve cover structure further comprises a third sealing ring and a fourth sealing ring, the third sealing ring surrounds the first through hole and is fixedly connected to the upper wall of the cavity, and the fourth sealing ring is clamped to the inner wall surface of the first through hole;

[0016] The rotating structure further comprises a first pressing block, which surrounds and is fixedly connected to the rotating rod, and the first pressing block is located above the connecting block.

[0017] The first pressing block is used for pressing the third sealing ring, and the fourth sealing ring abuts against the outer wall of the rotating rod.

[0018] Preferably, the rotating structure further comprises:

[0019] a pad block located above the first pressing block and slidingly connected to the outer wall of the rotating rod;

[0020] a first disc spring fixedly connected to the upper surface of the pad block; and

[0021] a fixed block fixedly connected to the outer wall of the rotating rod and used for limiting the first disc spring.

[0022] Preferably, the valve cover structure further comprises an annular second pressing block and a second disc spring, both of which are arranged in the hydrophobic cavity, the second pressing block abuts against the upper surface of the hydrophobic element, one end of the second disc spring abuts against the upper surface of the second pressing block, and the other end is fixedly connected to the upper wall of the hydrophobic cavity.

[0023] Preferably, the lower surface of the pad block is provided with a sealing pad.

[0024] Preferably, an indicating disc is fixedly connected to the upper surface of the valve cover.

[0025] The rotating structure further comprises a pointer fixedly connected to the upper portion of the rotating rod and located above the indicating disc.

[0026] Preferably, the hydrophobic device further comprises a connecting structure bolted to the lower surface of the valve cover, the connecting structure comprising:

[0027] a connecting member;

[0028] a first air inlet channel penetrating through the connecting member and communicating with one of the Venturi nozzles;

[0029] a second hydrophobic channel penetrating through the connecting member and communicating with the first hydrophobic channel; and

[0030] a connecting hole located at the lower portion of the connecting member for mounting a connecting bolt.

[0031] Preferably, the connecting hole is provided with at least two.

[0032] Preferably, the valve cover structure further comprises a fifth sealing ring clamped to the lower surface of the valve cover and located between the bolt and the hydrophobic member.

[0033] Preferably, the connecting structure further comprises a sixth sealing ring and a seventh sealing ring, both clamped to the lower surface of the connecting member, the sixth sealing ring for sealing the first air inlet channel and the seventh sealing ring for sealing the second hydrophobic channel.

[0034] A hydrophobic valve composed of the hydrophobic device and a first valve body as described above, the lower portion of the inner wall of the valve cover being provided with an internal thread for connecting the first valve body, the upper portion of the first valve body being provided with an external thread for connecting the valve cover.

[0035] The first valve body comprises a second air inlet channel and a third hydrophobic channel, the second air inlet channel communicating with one of the Venturi nozzles and the third hydrophobic channel communicating with the first hydrophobic channel.

[0036] Preferably, the valve cover further comprises an eighth sealing ring.

[0037] The inner diameter of the cavity increases at the internal thread to form a step, and the eighth sealing ring is fixedly connected to the step for sealing the connection between the valve cover and the first valve body.

[0038] Preferably, the first valve body is provided with flanges on both sides.

[0039] The hydrophobic valve can also be composed of the hydrophobic device with a connecting structure and a second valve body as described above, the second valve body being provided with a first screw hole corresponding to the connecting hole.

[0040] The second valve body comprises a third inlet flow channel and a fourth water flow channel, the third inlet flow channel is communicated with the first inlet flow channel, and the fourth water flow channel is communicated with the second water flow channel.

[0041] Preferably, flanges are arranged on the left and right sides of the second valve body.

[0042] The heating equipment is characterized in that the heating equipment is provided with the water drainage device or the water drainage valve.

[0043] Compared with the prior art, the water drainage device has the following beneficial effects:

[0044] The water drainage device provided by the application comprises a valve body, a rotating structure and a water drainage structure.

[0045] In addition, an indicating disc is arranged on the valve cover, and a pointer fixedly connected to the rotating rod is matched with the indicating disc, so that an operator can monitor the water drainage amount of the selected water drainage nozzle.

[0046] The application further provides a water drainage valve using the water drainage device, and the water drainage valve has all the advantages of the water drainage device.

[0047] The application further provides a heating equipment using the water drainage valve, and the heating equipment has all the advantages of the water drainage device and the water drainage valve. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 The cross-sectional exploded view of the water drainage device provided by an embodiment of the application is shown in the figure;

[0049] Figure 2 The cross-sectional structure schematic view of the water drainage device provided by an embodiment of the application is shown in the figure;

[0050] Figure 3 The assembly schematic view of the water drainage structure and the rotating structure provided by an embodiment of the application is shown in the figure;

[0051] Figure 4 The cross-sectional structure schematic view of the water drainage structure and the rotating structure provided by an embodiment of the application is shown in the figure;

[0052] Figure 5 The top view structure schematic view of the water drainage device provided by an embodiment of the application is shown in the figure;

[0053] Figure 6 The cross-sectional structure schematic view of the water drainage device and the first valve body provided by an embodiment of the application is shown in the figure;

[0054] Figure 7 The cross-sectional structure diagram of the second valve body provided for another embodiment of the present application;

[0055] Figure 8 The cross-sectional structure diagram of the hydrophobic device assembled with the second valve body provided for another embodiment of the present application;

[0056] Figure 9 The exploded structure diagram of the hydrophobic device with connecting structure provided for another embodiment of the present application;

[0057] Figure 10 The cross-sectional structure diagram of the hydrophobic device with connecting structure provided for another embodiment of the present application.

[0058] Main element symbol explanation: 1-hydrophobic device, 11-hydrophobic structure, 111-hydrophobic member, 112-first hydrophobic flow channel, 1121-first part, 1122-second part, 113-first nozzle, 114-second nozzle, 115a-first sealing ring, 115b-second sealing ring, 12-valve cover structure, 121-valve cover, 1211-cavity, 1212-hydrophobic cavity, 1213-steps, 1214-internal thread, 122-first through hole, 123a-third sealing ring, 123b-fourth sealing ring, 124-second pressing block, 125-second disc spring, 126-indicator disc, 127-fifth sealing ring, 128-eighth sealing ring, 13-rotation structure, 131-rotation rod, 132-connecting block, 1321-second through hole, 133-first pressing block, 134-pad block, 135-first disc spring, 136-fixing block, 137-pointer, 14-connecting structure, 141-connecting member, 142-first air inlet flow channel, 143-second hydrophobic flow channel, 144-first connecting hole, 145a-sixth sealing ring, 145b-seventh sealing ring, 146-bolt, 2-first valve body, 21-external thread, 22-second air inlet flow channel, 23-third hydrophobic flow channel, 24-recessed cavity, 25-flange, 3-second valve body, 31-second connecting hole, 32-third air inlet flow channel, 33-fourth hydrophobic flow channel. DETAILED DESCRIPTION

[0059] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0060] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0061] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0062] In addition, the terms "mounting", "setting", "provided with", "connected", "connected" should be broadly understood. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific situation.

[0063] In addition, the terms "first", "second", and the like are mainly used to distinguish different devices, elements or components (the specific type and structure can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0064] The technical solutions of the present application will be further described below in conjunction with the embodiments and the drawings.

[0065] Embodiments

[0066] Please refer to Figure 1 The hydrophobic device 1 provided by the present application comprises a hydrophobic structure 11, a valve cover structure 12, and a rotating structure 13 for driving the hydrophobic structure 11 to rotate.

[0067] The valve cover structure 12 comprises a valve cover 121, the lower surface of the valve cover 121 is concave upward to form a cavity 1211, and the upper and lower surfaces of the valve cover 121 are through to form a first through hole 122. The hydrophobic structure 11 is arranged in the cavity 1211 and forms a hydrophobic cavity 1212 together with the valve cover 121. The hydrophobic structure 11 comprises a hydrophobic element 111, which is provided with a first hydrophobic flow channel 112 and at least two different Venturi nozzles (in this embodiment, the Venturi nozzles include two, such as Figure 1The first nozzle 113 and the second nozzle 114 are shown in the figure) and the water flow amount of the Venturi nozzle is different, and all the Venturi nozzles are arranged along the circumference of the first water flow channel 112. The rotating structure 13 is rotationally connected in the first through hole 122, used to drive the water flow structure 11 to rotate around the axis of the first water flow channel 112. The distance from the axis of the first water flow channel 112 to the axis of the first nozzle 113 and the second nozzle 114 is equal, and when the water flow part 111 rotates, the position of the first water flow channel 112 does not change, and different Venturi nozzles (such as Figure 1 The first nozzle 113 and the second nozzle 114 are shown in the figure) and the water flow amount of the Venturi nozzle is different, and all the Venturi nozzles are arranged along the circumference of the first water flow channel 112. The rotating structure 13 is rotationally connected in the first through hole 122, used to drive the water flow structure 11 to rotate around the axis of the first water flow channel 112. The distance from the axis of the first water flow channel 112 to the axis of the first nozzle 113 and the second nozzle 114 is equal, and when the water flow part 111 rotates, the position of the first water flow channel 112 does not change, and different Venturi nozzles (such as

[0068] It can be understood that the water flow amount of each Venturi nozzle can be in a step distribution. For example, the water flow amount of the first Venturi nozzle is [a, b], the water flow amount of the second Venturi nozzle is [b, c], the water flow amount of the third Venturi nozzle is [c, d], and so on. The step distribution of the water flow amount can make the application scenarios of the Venturi nozzle more comprehensive.

[0069] Further, the water flow amount of each Venturi nozzle can also be determined according to the product to be produced. For example, the water flow amount required in the production process of product A is [e, f], so the water flow amount of the first Venturi nozzle is [e, f] at this time; the water flow amount required in the production process of product B is [g, h], so the water flow amount of the second Venturi nozzle is [g, h] at this time.

[0070] Specifically, the rotating structure 13 includes a rotating rod 131 and a connecting block 132, the connecting block 132 surrounds the rotating rod 131 and is fixedly connected to the lower part of the rotating rod 131, and the connecting block 132 abuts against the upper part of the inner wall of the first water flow channel 112. When the rotating rod 131 rotates, the connecting block 132 drives the water flow structure 11 to rotate, thereby changing the position of the Venturi nozzle and changing the water flow amount of the water flow device 1.

[0071] When installed, the rotating rod 131 passes upward from the cavity 1211 through the first through hole 122, and since the connecting block 132 is too large to pass through, it stays in the cavity 1211.

[0072] Further, in combination with Figures 3-4 The first water flow channel 112 includes a first part 1121 and a second part 1122, the first part 1121 is located above the second part 1122, the first part 1121 is clamped with the connecting block 132 and limits the connecting block 132, so that the connecting block 132 cannot rotate relative to the water flow structure 11, thereby enabling the connecting block 132 to drive the water flow structure 11 to rotate. The second part 1122 is connected with the water flow pipeline of the valve body, so that the water can be smoothly discharged.

[0073] Specifically, the cross-sectional shape of the first portion 1121 is the same as the cross-sectional shape of the connecting block 132 in the horizontal direction, both of which are one of polygons, thereby making the connecting block 132 unable to rotate relative to the water drain structure 11. The cross-sectional shape of the first portion 1121 and the cross-sectional shape of the connecting block 132 in the horizontal direction can be one of a triangle, a quadrilateral, a pentagon, a hexagon, and the like.

[0074] Preferably, in the embodiment of the present application, the cross-sectional shape of the first portion 1121 and the connecting block 132 in the horizontal direction are both quadrilaterals.

[0075] Further, the first portion 1121 and the connecting block 132 are gap-connected. At this time, the water separated by the Venturi nozzle can flow to the second portion 1122 through the gap of the first portion 1121.

[0076] In order to make the water flow more smooth, the connecting block 132 is further provided with a second through hole 1321, which communicates the water drain cavity 1212 and the second portion 1122, so that the water in the water drain cavity 1212 can flow smoothly into the second portion 1122 of the first water drain flow channel 112.

[0077] Specifically, as shown in Figures 1-2 In order to ensure that the water drain structure 11 does not leak during rotation, the water drain structure 11 further includes a first sealing ring 115a and a second sealing ring 115b. The first sealing ring 115a and the second sealing ring 115b are both clamped to the lower surface of the water drain 111, and the first sealing ring 115a surrounds the first water drain flow channel 112 to isolate the first water drain flow channel 112 and the Venturi nozzle; the second sealing ring 115b surrounds the outside of the Venturi nozzle, and the first sealing ring 115a and the second sealing ring 115b jointly seal the Venturi nozzle.

[0078] Specifically, in order to ensure that the first through hole 122 does not leak during rotation of the rotating structure 13, the valve cover structure 12 further includes a third sealing ring 123a and a fourth sealing ring 123b. The third sealing ring 123a is arranged around the first through hole 122 and is arranged on the upper surface of the inner wall of the cavity 1211; the fourth sealing ring 123b surrounds and is clamped to the side wall of the first through hole 122. The outer wall of the rotating rod 131 is further fixedly connected with a first pressing block 133, which is arranged above the connecting block 132, and the first pressing block 133 is used to press the third sealing ring 123a, and the fourth sealing ring 123b abuts against the inner wall of the rotating rod 131, so that the first through hole 122 is in a good sealing state, and steam or water flow cannot leak from there.

[0079] Further, in order to ensure that the first pressing block 133 can better compress the fourth sealing ring 123b, the outer wall of the rotating rod 131 is further provided with a pad 134, a first disc spring 135 and a fixing block 136. The pad 134 is located below the first pressing block 133 and is slidingly connected to the outer wall of the rotating rod 131. The first disc spring 135 is fixedly connected to the upper surface of the pad 134. The fixing block 136 is fixedly connected to the outer wall of the rotating rod 131 and is located above the first disc spring 135, limiting the first disc spring 135.

[0080] During installation, the rotating rod 131 passes through the first through hole 122 from bottom to top, the first pressing block 133 compresses the third sealing ring 123a, and then the pad 134, the first disc spring 135 and the fixing block 136 are placed from top to bottom. Then the fixing block 136 is welded to the outer wall of the rotating rod 131. When the welding is completed, the first disc spring 135 is in a compressed state and has a pre-tightening force for pushing the rotating rod 131 upward, so that the first pressing block 133 can actively compress the third sealing ring 123a.

[0081] Further, the pre-tightening force provided by the first disc spring 135 is 80-120 N, so that the first pressing block 133 compresses the third sealing ring 123a to ensure the sealing of the first through hole 122 while not affecting the rotation of the rotating rod 131.

[0082] Further, the lower surface of the pad 134 is provided with a sealing pad. When the first disc spring 135 compresses the pad 134, the sealing pad deforms to seal the connection between the rotating rod 131 and the first through hole 122.

[0083] Further, in order to ensure that the hydrophobic structure 11 can be compressed on the valve body of the hydrophobic valve, the valve cover structure 12 further comprises a second pressing block 124 and a second disc spring 125, both of which are located in the hydrophobic cavity 1212.

[0084] Specifically, the second pressing block 124 is an annular thin plate abutting against the upper surface of the hydrophobic device 1. The inner wall of the second pressing block 124 is arranged at the outer edge of the Venturi nozzle, which does not affect the normal hydrophobic of the Venturi nozzle.

[0085] Specifically, one end of the second disc spring 125 abuts against the upper surface of the second pressing block 124, and the other end is fixedly connected to the upper wall of the hydrophobic cavity 1212. When the first sealing ring 115a and the second sealing ring 115b are compressed on the valve body, the second disc spring 125 is in a compressed state, and the second disc spring 125 applies a pressure to the first sealing ring 115a and the second sealing ring 115b so that the first hydrophobic flow channel 112 and the Venturi nozzle can be kept sealed.

[0086] Further, on the basis of guaranteeing the firm connection between the hydrophobic device 1 and the valve body, if the first sealing ring 115a and the second sealing ring 115b are compressed by the connecting block 132 compressing the first hydrophobic flow channel 112, the compression force can be too large, and the rotation of the rotating rod 131 can be difficult. The first sealing ring 115a and the second sealing ring 115b are compressed by the second disc spring 125, so that the compression pressure of the sealing ring is moderate, and the rotating rod 131 can be rotated easily while the sealing state is guaranteed.

[0087] Further, the pressure provided by the second disc spring 125 is 400-600 N, so that the second disc spring 125 compresses the first sealing ring 115a and the second sealing ring 115b without affecting the rotation of the rotating rod 131.

[0088] In combination with Figures 1-2 and Figure 5 , the upper part of the rotating rod 131 is provided as a prism, and when a tool matched with the prism is clamped on the prism, the rotation of the tool can drive the rotation of the rotating rod 131, and further drive the rotation of the hydrophobic structure 11.

[0089] Further, the upper surface of the valve cover 121 is fixedly connected with an indicating disc 126, and the numbers on the indicating disc 126 are matched with the numbers of the Venturi nozzles arranged. For example, the hydrophobic structure 11 is provided with a first Venturi nozzle and a second Venturi nozzle, and at this time, the indicating disc 126 is correspondingly provided with A numbers and B numbers corresponding thereto; the hydrophobic structure 11 is provided with a first Venturi nozzle, a second Venturi nozzle, a third Venturi nozzle and a fourth Venturi nozzle, and at this time, the indicating disc 126 is correspondingly provided with A numbers, B numbers, C numbers and D numbers corresponding thereto. In combination with the indicating disc 126, the upper part of the rotating rod 131 is further fixedly connected with a pointer 137, and the pointer 137 is located above the indicating disc 126. When the hydrophobic flow corresponding to the production process is selected, for example, the first Venturi nozzle is selected, and at this time, the pointer 137 points to the number A corresponding to the first Venturi nozzle.

[0090] As shown in Figure 6 , the application further discloses a hydrophobic valve composed of the hydrophobic device 1 and the first valve body 2.

[0091] The lower part of the inner cavity wall surface of the valve cover 121 is provided with an inner thread 1214 for connecting the first valve body 2, and the upper part of the first valve body 2 is provided with an outer thread 21 for connecting the valve cover 121, and the inner thread 1214 is matched with the outer thread 21. And the upper part of the first valve body 2 extends upwardly, and forms a recess 24 for placing the drain structure 11. When the drain device 1 needs to be installed on the first valve body 2, first, the drain structure 11 is placed in the recess 24, and then the valve cover 121 is placed above the first valve body 2 and rotated, and the inner and outer threads 21 are engaged, thereby completing the installation of the drain valve.

[0092] Specifically, the first valve body 2 comprises a second air inlet channel 22 and a third drain channel 23, wherein the second air inlet channel 22 is communicated with a Venturi nozzle, and the third drain channel 23 is communicated with the first drain channel 112.

[0093] It can be understood that when the drain device 1 and the first valve body 2 are connected by threads, at this time, the first sealing ring 115a seals the connection between the first drain channel 112 and the third drain channel 23, and the first sealing ring 115a and the second sealing ring 115b together seal the second air inlet channel 22 and the Venturi nozzle. The steam in the second air inlet channel 22 communicated with the pipeline can enter the Venturi nozzle without leakage, and the water can be discharged from the first drain channel to the third drain channel 23 and then into the pipeline without leakage.

[0094] Further, in order to ensure that the steam in the recess 24 does not leak at the connection between the inner thread 1214 of the valve cover 121 and the first valve body 2, the valve cover structure 12 further comprises an eighth sealing ring 128. The inner diameter of the cavity 1211 is increased at the inner thread 1214, thereby forming a step 1213 at the inner thread 1214, and the eighth sealing ring 128 is fixedly connected to the step 1213.

[0095] It can be understood that the step 1213 is located between the threaded connection and the recess 24, and when the first valve body 2 is threadedly connected with the valve cover 121, the upper part of the first valve body 2 presses the eighth sealing ring 128, so that the recess 24 is sealed, and the steam is prevented from leaking.

[0096] It can be understood that the first valve body 2 is provided with flanges 25 on both sides, so that the first valve body 2 can be stably connected with the pipeline and maintain good sealing with the pipeline.

[0097] In another embodiment of the present application, the drain device 1 can also be connected with the valve body of the drain valve through two bolts.

[0098] As Figures 7-8As shown in another embodiment of the present application, the drain valve can be composed of the drain device 1 with the connecting structure 14 and the second valve body 3, the second valve body 3 including the second connecting hole 31, the third air inlet flow channel 32 and the fourth drain flow channel 33.

[0099] By comparison Figure 8 and Figure 6 It can be seen that when the valve body connected with the drain device 1 changes, such as from the first valve body 2 to the second valve body 3, at this time the third air inlet flow channel 32 is located in the middle position of the valve body corresponding to the drain flow channel of the drain device 1, and the fourth drain flow channel 33 corresponds to the Venturi nozzle. If the two are directly connected, they will not be matched and cannot play the effect of draining.

[0100] As shown in another embodiment of the present application, the drain device 1 can also include the connecting structure 14, the connecting structure 14 being bolted 146 to the lower surface of the valve cover 121. The connecting structure 14 includes the connecting piece 141, the first air inlet flow channel 142 and the second drain flow channel 143. Figures 8-10 Specifically, as shown in the drawings, a plurality of long holes for placing the bolts 146 are arranged on the valve cover 121 to communicate the upper and lower surfaces of the valve cover 121, the bolts 146 being threadedly connected with the screw holes arranged on the connecting structure 14 through the long holes, so that the connecting structure 14 is fixed to the lower surface of the valve cover 121.

[0101] Figure 9 Further, when the second drain flow channel 143 and the first drain flow channel 112 are aligned, the first sealing ring 115a seals the connection between the two; when the first air inlet flow channel 142 and a Venturi nozzle are aligned, the first sealing ring 115a and the second sealing ring 115b jointly seal the connection between the two.

[0102] Further, the first drain flow channel 112 extends downward by a length, and the second drain flow channel 143 is concave downward at a portion, the extended portion and the concave portion being matched to realize the quick positioning of the drain structure 11 and the connecting structure 14.

[0103] Further, the valve cover structure 12 also includes the fifth sealing ring 127, the fifth sealing ring 127 being clamped to the lower surface of the valve cover 121. It can be understood that the fifth sealing ring 127 is located between the long hole and the drain piece 111, and after the valve cover 121 and the connecting structure 14 are firmly connected, the fifth sealing ring 127 seals the drain cavity 1212 from the outside, so that the drain cavity 1212 will not leak.

[0104] Further, the valve cover structure 12 also includes the fifth sealing ring 127, the fifth sealing ring 127 being clamped to the lower surface of the valve cover 121. It can be understood that the fifth sealing ring 127 is located between the long hole and the drain piece 111, and after the valve cover 121 and the connecting structure 14 are firmly connected, the fifth sealing ring 127 seals the drain cavity 1212 from the outside, so that the drain cavity 1212 will not leak.

[0105] ​Further, the connecting structure 14 further comprises a first connecting hole 144, which is arranged at the lower part of the connecting structure 14 and used for mounting a connecting bolt to quickly mount the connecting structure 14 with the valve body of the drain valve.

[0106] It can be understood that the first connecting hole 144 is arranged with at least two.

[0107] Preferably, in the embodiment of the present application, the first connecting hole 144 is arranged with two, which not only facilitates the dismounting of the drain device 1 with the valve body, but also ensures the good sealing performance between the two.

[0108] Further, the second connecting hole 31 arranged on the second valve body 3 corresponds to the position of the first connecting hole 144. After the bolt is put into the first connecting hole 144 and the second connecting hole 31, the second valve body and the drain device can be connected. After the connection is completed, the third air inlet channel 32 is in communication with the first air inlet channel 142, and the fourth drain channel 33 is in communication with the second drain channel 143.

[0109] Further, the connecting structure 14 further comprises a sixth sealing ring 145a and a seventh sealing ring 145b, both of which are clamped on the lower surface of the connecting piece 141. The sixth sealing ring 145a surrounds the first air inlet channel 142 and is used for sealing the first air inlet channel 142; the seventh sealing ring 145b and the sixth sealing ring 145a jointly seal the second drain channel 143.

[0110] Specifically, after the connecting structure 14 and the second valve body 3 are connected, the sixth sealing ring 145a and the seventh sealing ring 145b are both deformed under pressure, thereby sealing the connection between the third air inlet channel 32 and the first air inlet channel 142 and the connection between the fourth drain channel 33 and the second drain channel 143.

[0111] It can be understood that by changing the direction of the opening in the first air inlet channel 142 and the second drain channel 143 in the connecting structure 14, the drain device 1 can be adapted to various opening Venturi drain valves.

[0112] It can be understood that the flange plate 25 is arranged on both sides of the second valve body 3, so that the second valve body 3 can be stably connected with the pipeline and maintain good sealing between the pipeline.

[0113] It can be understood that after the connecting structure 14 is used, the drain device 1 is connected with the second valve body 3 through the bolt, which can more conveniently dismount the drain device 1 compared with the connection with the first valve body 2 through the thread in another embodiment.

[0114] Further, all the sealing rings are made of modified polymer material, and the sealing ring driving heat-resistant temperature is 200 DEG C, so as to ensure that the sealing ring can normally seal the joint at high temperature.

[0115] In another embodiment of the present application, the heating device using the above-mentioned optional nozzle hydrophobic device 1 or hydrophobic valve has all the advantages of the hydrophobic device 1.

[0116] It can be understood that, for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and inventive concepts of the present application, and all these changes or replacements shall belong to the protection scope of the present application.

Claims

1. A hydrophobic device, characterized by, The valve cover structure comprises a valve cover and a first through hole, the lower surface of the valve cover is concave to form a cavity, and the first through hole penetrates the upper and lower surfaces of the valve cover. The hydrophobic structure is arranged in the cavity and encloses a hydrophobic cavity with the valve cover, the hydrophobic structure comprises a hydrophobic member, the hydrophobic member is provided with a first hydrophobic flow channel and at least two Venturi nozzles, and a plurality of Venturi nozzles are arranged circumferentially along the first hydrophobic flow channel; the first hydrophobic flow channel comprises a first part and a second part, the first part is located above the second part, the first part is used for limiting the connection block so that it cannot rotate relative to the hydrophobic member; the second part is used for connecting the drainage channel of the hydrophobic valve body; the connection block is connected with the first part in a gap; the shape of the horizontal section of the first part is the same as the shape of the horizontal section of the connection block, and the shape of the section is polygonal; the connection block is provided with a second through hole communicating the hydrophobic cavity and the second part, and the second through hole is provided with a plurality of; The rotating structure is rotatably connected to the first through hole and is used for driving the hydrophobic member to rotate to switch different Venturi nozzles; the rotating structure comprises a rotating rod and a connecting block, the rotating rod penetrates the first through hole, and the connecting block is fixedly connected to the lower part of the rotating rod and abuts against the upper part of the inner wall of the first hydrophobic flow channel; The hydrophobic structure further comprises a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are clamped to the lower surface of the hydrophobic member; the first sealing ring is used for sealing the first hydrophobic flow channel, and the second sealing ring is used for sealing the Venturi nozzle together with the first sealing ring; The valve cover structure further comprises a third sealing ring and a fourth sealing ring, the third sealing ring surrounds the first through hole and is fixedly connected to the upper wall of the cavity, and the fourth sealing ring is clamped to the inner wall surface of the first through hole; The rotating structure further comprises a first pressing block, the first pressing block surrounds and is fixedly connected to the rotating rod, and the first pressing block is located above the connecting block; The first pressing block is used for pressing the third sealing ring, and the fourth sealing ring abuts against the outer wall of the rotating rod; The rotating structure further comprises: a pad block located above the first pressing block and slidingly connected to the outer wall of the rotating rod; a first disc spring fixedly connected to the upper surface of the pad block; and a fixed block fixedly connected to the outer wall of the rotating rod and used for limiting the first disc spring; The valve cover structure further comprises an annular second pressing block and a second disc spring, the second pressing block and the second disc spring are arranged in the hydrophobic cavity, the second pressing block abuts against the upper surface of the hydrophobic member, one end of the second disc spring abuts against the upper surface of the second pressing block, and the other end is fixedly connected to the upper wall of the hydrophobic cavity; The hydrophobic device further comprises a connecting structure, the connecting structure is bolted to the lower surface of the valve cover, and the connecting structure comprises: a connecting piece; a first air inlet flow channel penetrating the connecting piece and communicating with one Venturi nozzle; a second hydrophobic flow channel penetrating the connecting piece and communicating with the first hydrophobic flow channel; and ​ Connecting holes are arranged in the lower part of the connecting piece for mounting connecting bolts, and at least two connecting holes are arranged; The valve cover structure further comprises a fifth sealing ring, which is clamped to the lower surface of the valve cover, and the fifth sealing ring is located between the bolt and the water-repellent element; The connecting structure further comprises a sixth sealing ring and a seventh sealing ring, both of which are clamped to the lower surface of the connecting piece, the sixth sealing ring is used to seal the first air inlet channel, and the seventh sealing ring is used to seal the second water-repellent channel.

2. The hydrophobic device of claim 1, wherein, The lower surface of the cushion block is provided with a sealing gasket.

3. The hydrophobic device of claim 2, wherein, The upper surface of the valve cover is fixedly connected with an indicator disc; The rotating structure further comprises a pointer, which is fixedly connected to the upper part of the rotating rod, and the pointer is located above the indicator disc.

4. A hydrophobic valve characterized by, The hydrophobic device and the first valve body according to any one of claims 1-3, wherein the lower part of the inner wall of the valve cover is provided with an internal thread for connecting the first valve body, and the upper part of the first valve body is provided with an external thread for connecting the valve cover; The first valve body comprises a second air inlet channel and a third water-repellent channel, the second air inlet channel is communicated with one of the Venturi nozzles, and the third water-repellent channel is communicated with the first water-repellent channel; The valve cover structure further comprises an eighth sealing ring; the inner diameter of the cavity is increased at the internal thread to form a step, and the eighth sealing ring is fixedly connected to the step for sealing the connection between the valve cover and the first valve body; The hydrophobic valve comprises a hydrophobic device and a second valve body, the second valve body is provided with a first screw hole corresponding to the connecting hole; the second valve body comprises a third air inlet channel and a fourth water-repellent channel, the third air inlet channel is communicated with the first air inlet channel, and the fourth water-repellent channel is communicated with the second water-repellent channel.

5. The hydrophobic valve according to claim 4, wherein the first valve body is provided with flanges on the left and right sides.

6. The hydrophobic valve according to claim 4, wherein the second valve body is provided with flanges on the left and right sides.

7. Heating device, characterized in that The heating device comprises the hydrophobic device according to any one of claims 1-3 or the hydrophobic valve according to any one of claims 4-6.

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