Anti-condensation vacuum system drain valve

Abstract

The utility model relates to the field of drain valves, in particular to an anti-condensation vacuum system drain valve which comprises a drain valve body, an external electric heating piece, heat preservation cotton, fixing plates, a valve pipe, sealing plates, sealing washers, a valve handle, a valve rod and a valve ball, the external electric heating piece is installed on the outer side of the drain valve body, the fixing plates are installed on the front side and the rear side of the drain valve body, and the valve pipe is installed on the fixing plates. A sealing gasket is arranged between the sealing plate and the drain valve body, a valve ball is installed in the drain valve body, a valve rod is arranged in the valve ball, and a valve handle is installed at the top of the valve rod. One end of an electric wire is connected to a second connector, and the other end of the electric wire is connected to a power source. Heat is transferred to the multiple sets of heat conduction wires on the inner side wall of the external electric heating piece, the heat in the drain valve body is increased through the heat conduction effect, condensate water is dispersed, freezing blockage is prevented, and the problem that compressed air condensate water is frozen in winter is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of drain valves, specifically to a drain valve for an anti-condensation vacuum system. Background Technology

[0002] The function of a drain valve is to promptly remove moisture to ensure system stability and long-term equipment use. Drain valves come in various types, including automatic and manual drain valves. A Chinese patent discloses an automatic drain device for a vacuum system (authorization announcement number CN 207936784 U). This patent design includes a water storage tank with a level gauge. When the liquid level is high, the electromagnetic water outlet valve is closed, and the electromagnetic air inlet valve and electromagnetic drain valve are opened. When the liquid level is low, the electromagnetic air inlet valve and electromagnetic drain valve are closed, and the electromagnetic drain valve is opened, allowing the system to operate normally without affecting system operation and enabling online replacement. However, this design lacks a good solution for the problem of compressed air condensate freezing in winter, leading to condensate freezing and valve failure. Therefore, those skilled in the art have provided an anti-condensation vacuum system drain valve to solve the problems mentioned in the background art. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a drain valve for an anti-condensation vacuum system, including a drain valve body, an external electric heating element, insulation cotton, a fixing plate, a valve pipe, a sealing plate, a sealing gasket, a valve handle, a valve stem, and a valve ball. The external electric heating element is installed on the outside of the drain valve body. Fixing plates are installed on the front and rear sides of the drain valve body. The valve pipe is installed on the fixing plate. The outer wall of the valve pipe is wrapped with insulation cotton. A sealing plate is installed on the rear side of the fixing plate. A sealing gasket is provided between the sealing plate and the drain valve body. A valve ball is installed inside the drain valve body. A valve stem is provided inside the valve ball. A valve handle is installed on the top of the valve stem.

[0004] Preferably, a heater is installed on the right side wall of the external electric heating element, and the heater is provided with a No. 1 interface and a No. 2 interface. An electric wire is inserted into the No. 2 interface, and multiple sets of heat-conducting wires are installed on the inner side wall of the external electric heating element.

[0005] Preferably, the drain valve body and the fixing plate are installed by hexagonal bolts. The end of the hexagonal bolt is provided with a threaded post, and a No. 1 hexagonal nut can be screwed into the threaded post. A No. 1 limiting plate is installed on the inner wall of the front and rear sides of the drain valve body. A convex ring can be inserted into the inner side of the No. 1 limiting plate. The convex ring is installed on the side wall of the sealing plate, and a sealing gasket is installed on the outer side wall of the convex ring.

[0006] Preferably, the upper side of the drain valve body is provided with a groove and a fixing groove, a second limiting plate is installed in the groove, and a stop post is installed in the fixing groove;

[0007] Preferably: a baffle is installed on the upper side of the second limiting plate, a second hexagonal nut is installed on the upper side of the baffle, a handle is installed on the upper side of the second hexagonal nut, the handle is installed on the top of the valve handle, a third hexagonal nut is installed on the upper side of the handle, a valve stem is installed in the middle of the handle, the bottom of the valve stem is inserted into the stem groove, the stem groove is located on the top of the valve ball, and a stop is provided at the top of the handle, which can abut against one side of the stop post.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] 1. Connect one end of the wire to interface number 2 and the other end to the power supply. The heater will generate heat and transfer the heat to the multiple sets of heat-conducting wires on the inner wall of the external electric heating element. Through heat conduction, the heat inside the drain valve body will increase, dissipate the condensate, prevent freezing and blockage, and effectively solve the problem of compressed air condensate freezing in winter.

[0010] 2. By rotating the valve handle, the valve stem is rotated until the through hole of the valve ball is on the same side as the valve pipe, thus realizing the drainage function. When the valve handle is rotated and the pusher reaches the pusher, the through hole of the valve ball moves away from the side of the valve pipe, stopping the drainage. The operation is simple. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the anti-condensation vacuum system drain valve provided in the embodiments of this application;

[0012] Figure 2 This is an exploded structural diagram of the anti-condensation vacuum system drain valve provided in the embodiments of this application;

[0013] Figure 3 The anti-condensation vacuum system drain valve provided in this application embodiment is... Figure 2 Enlarged schematic diagram of structure A;

[0014] Figure 4 This is a schematic diagram of a partial explosion of the drain valve in the anti-condensation vacuum system provided in this application embodiment. Figure 1 ;

[0015] Figure 5 This is a partial enlarged structural diagram of the drain valve in the anti-condensation vacuum system provided in the embodiments of this application. Figure 2 .

[0016] In the diagram: 1. Drain valve body; 2. External electric heating element; 3. Insulation cotton; 4. Fixing plate; 5. Sealing plate; 6. Sealing gasket; 7. Hex bolt; 8. No. 1 hex nut; 9. Valve handle; 10. Abutment; 11. Valve stem; 12. Valve ball; 13. Baffle; 14. No. 2 hex nut; 15. No. 3 hex nut; 101. No. 1 limiting plate; 102. Groove; 103. No. 2 limiting plate; 104. Fixing groove; 201. Heater; 202. No. 1 interface; 203. No. 2 interface; 204. Wire; 205. Heat-conducting wire; 401. Valve pipe; 501. Raised ring; 701. Threaded post; 901. Handle head; 902. Abutment head; 1201. Stem groove. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0018] Please see Figures 1-5 In this embodiment, a drain valve for an anti-condensation vacuum system is provided, including a drain valve body 1, an external electric heating element 2, insulation cotton 3, a fixing plate 4, a valve pipe 401, a sealing plate 5, a sealing gasket 6, a valve handle 9, a valve stem 11, and a valve ball 12. The external electric heating element 2 is installed on the outside of the drain valve body 1. The fixing plates 4 are installed on the front and rear sides of the drain valve body 1. The valve pipe 401 is installed on the fixing plate 4. The outer wall of the valve pipe 401 is wrapped with insulation cotton 3. The sealing plate 5 is installed on the rear side of the fixing plate 4. A sealing gasket 6 is provided between the sealing plate 5 and the drain valve body 1. The valve ball 12 is installed inside the drain valve body 1. The valve stem 11 is provided inside the valve ball 12. The valve handle 9 is installed on the top of the valve stem 11.

[0019] Specifically, a heater 201 is installed on the right side wall of the external electric heating element 2. The heater 201 has a first interface 202 and a second interface 203. A wire 204 is inserted into the second interface 203. Multiple sets of heat-conducting wires 205 are installed on the inner side wall of the external electric heating element 2. The drain valve body 1 and the fixing plate 4 are installed by hexagonal bolts 7. The end of the hexagonal bolts 7 has a threaded post 701. A first hexagonal nut 8 can be screwed into the threaded post 701. A first limiting plate 101 is installed on the inner side of the front and rear sides of the drain valve body 1. A convex ring 501 can be inserted into the inner side of the first limiting plate 101. The convex ring 501 is installed on the side wall of the sealing plate 5. A sealing gasket 6 is installed on the outer side wall of the convex ring 501. The upper side of the water valve body 1 is provided with a groove 102 and a fixing groove 104. A second limiting plate 103 is installed in the groove 102, and a stop post 10 is installed in the fixing groove 104. A baffle 13 is installed on the upper side of the second limiting plate 103, and a second hexagonal nut 14 is installed on the upper side of the baffle 13. A handle head 901 is installed on the upper side of the second hexagonal nut 14. The handle head 901 is installed on the top of the valve handle 9. A third hexagonal nut 15 is installed on the upper side of the handle head 901. A valve stem 11 is installed in the middle of the handle head 901. The bottom of the valve stem 11 is inserted into the stem groove 1201. The stem groove 1201 is located on the top of the valve ball 12. A stop head 902 is provided at the top of the handle head 901. The stop head 902 can abut against one side of the stop post 10.

[0020] The working principle of this utility model is as follows:

[0021] When using the anti-condensation vacuum system drain valve, connect one end of the wire 204 to interface 203 and the other end to the power supply. The heater 201 generates heat, which is transferred to the multiple sets of heat-conducting wires 205 on the inner wall of the external electric heating element 2. Through heat conduction, the heat inside the drain valve body 1 increases, dissipating condensate and preventing freezing and blockage, effectively solving the problem of compressed air condensate freezing in winter. By rotating the valve handle 9, the valve stem 11 is rotated until the through hole of the valve ball 12 is on the same side as the valve tube 401, realizing the drainage function. When the valve handle 9 is rotated, and the pusher 902 pushes against the pusher post 10, the through hole of the valve ball 12 moves away from the side of the valve tube 401, stopping the drainage.

[0022] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A drain valve for a condensation-proof vacuum system, characterized in that The valve body includes a drain valve body (1), an external electric heating element (2), insulation cotton (3), a fixing plate (4), a valve pipe (401), a sealing plate (5), a sealing gasket (6), a valve handle (9), a valve stem (11), and a valve ball (12). An external electric heating element (2) is installed on the outside of the drain valve body (1). Fixing plates (4) are installed on the front and rear sides of the drain valve body (1). A valve pipe (401) is installed on the fixing plate (4). Insulation cotton (3) is wrapped around the outer wall of the valve pipe (401). A sealing plate (5) is installed on the rear side of the fixing plate (4). A sealing gasket (6) is provided between the sealing plate (5) and the drain valve body (1). A valve ball (12) is installed inside the drain valve body (1). A valve stem (11) is provided inside the valve ball (12). A valve handle (9) is installed on the top of the valve stem (11).

2. The anti-condensation vacuum system drain valve of claim 1, wherein, The external electric heating element (2) has a heater (201) installed on the right side wall. The heater (201) has a first interface (202) and a second interface (203). A wire (204) is inserted into the second interface (203). Multiple sets of heat-conducting wires (205) are installed on the inner side wall of the external electric heating element (2).

3. The anti-condensation vacuum system drain valve of claim 1, wherein, The drain valve body (1) and the fixing plate (4) are installed by hexagonal bolts (7), and the end of the hexagonal bolts (7) is provided with a threaded post (701), and a No. 1 hexagonal nut (8) can be screwed into the threaded post (701).

4. The anti-condensation vacuum system drain valve of claim 3, wherein, The drain valve body (1) has a first limiting plate (101) installed on the inner wall of the front and rear sides. A convex ring (501) can be inserted into the inner side of the first limiting plate (101). The convex ring (501) is installed on the side wall of the sealing plate (5). A sealing gasket (6) is installed on the outer side wall of the convex ring (501).

5. The anti-condensation vacuum system drain valve of claim 4, wherein, The drain valve body (1) has a groove (102) and a fixing groove (104) on its upper side. A second limiting plate (103) is installed in the groove (102), and a stop (10) is installed in the fixing groove (104).

6. The anti-condensation vacuum system drain valve of claim 5, wherein, A baffle (13) is installed on the upper side of the second limiting plate (103), a second hexagonal nut (14) is installed on the upper side of the baffle (13), a handle (901) is installed on the upper side of the second hexagonal nut (14), the handle (901) is installed on the top of the valve handle (9), a third hexagonal nut (15) is installed on the upper side of the handle (901), and a valve stem (11) is installed in the middle of the handle (901).

7. The anti-condensation vacuum system drain valve of claim 6, wherein, The bottom of the valve stem (11) is inserted into the stem groove (1201), and the stem groove (1201) is located at the top of the valve ball (12).

8. The anti-condensation vacuum system drain valve of claim 6, wherein, The top of the handle (901) is provided with a stop (902), which can abut against one side of the abutment (10).

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