Conical valve with energy dissipation device

Abstract

The utility model relates to the technical field of valve bodies, in particular to a conical valve with an energy dissipation device, which comprises an energy dissipation cover, the upper end of the energy dissipation cover is connected with a water inlet pipe, the lower end of the energy dissipation cover is connected with a water outlet pipe, a fixing block with a middle opening and a conical valve body are arranged in the energy dissipation cover, the opening of the fixing block is matched with the valve body, and the fixing block is fixed on the inner wall of the energy dissipation cover. The upper end of the threaded rod penetrates through the top wall of the energy dissipation cover and is in threaded connection with the energy dissipation cover, the lower end of the threaded rod penetrates through a drainage barrel to be connected with the valve body, the drainage barrel is arranged on the upper portion of the fixing block, and a first spiral piece and a second spiral piece are arranged on the outer wall of the drainage barrel from top to bottom in a surrounding mode and are opposite in rotation direction; the outer edges and the inner edges of the first spiral piece and the second spiral piece are fixed to the inner wall of the energy dissipation cover and the outer wall of the drainage barrel respectively. A conical flow choking block is arranged on the threaded rod and corresponds to an opening in the upper end of the flow drainage cylinder. The device has multiple energy dissipation effects, energy can be effectively dissipated, the service life of the device is effectively prolonged, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, in particular to a cone valve with an energy dissipation device. Background Art

[0002] Cone valve, as a valve body fixedly connected to the outlet of high-pressure water discharge pipe, is widely used in various water treatment and water transmission pipelines to control free discharge or adjust flow. However, since it is directly set at the outlet of high-pressure water flow, it faces severe challenges of high-speed water flow impact. The current conical valve design mainly relies on the annular space between the block valve sleeve and the cone to discharge the flow. This design causes the impact force of the water flow to be still strong after passing through, which can easily cause damage to the conical valve and its connected pipes. What is more serious is that the high kinetic energy carried by high-speed water flow and the reduced diameter pipe effect pose a significant safety hazard to the pipeline system. Therefore, the conical valve urgently needs to have effective energy dissipation and vibration reduction functions to overcome these unfavorable factors and ensure the safe and stable operation of the pipeline system. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a conical valve with an energy dissipation device, which has multiple energy dissipation effects, can effectively dissipate energy, effectively prolongs the service life of the device, and increases safety.

[0004] The conical valve with an energy dissipation device described in the utility model comprises an energy dissipation cover, the upper end of the energy dissipation cover is connected to the water inlet pipe, the lower end of the energy dissipation cover is connected to the water outlet pipe, a fixed block with a middle opening and a conical valve body are arranged in the energy dissipation cover, the opening of the fixed block is matched with the valve body, the fixed block is fixed on the inner wall of the energy dissipation cover, and also comprises a threaded rod, the upper end of the threaded rod passes through the top wall of the energy dissipation cover and is threadedly connected with the energy dissipation cover, the lower end of the threaded rod passes through the discharge tube and is connected with the valve body, the discharge tube is arranged on the upper part of the fixed block, and the outer wall of the discharge tube is surrounded by spiral pieces 1 and 2 from top to bottom, the spiral pieces 1 and 2 rotate in opposite directions, the outer edges and inner edges of the spiral pieces 1 and 2 are respectively fixed on the inner wall of the energy dissipation cover and the outer wall of the discharge tube; a conical flow blocking block is arranged on the threaded rod, the flow blocking block is arranged corresponding to the upper opening of the discharge tube, the outer diameter of the flow blocking block is preferably smaller than the inner diameter of the discharge tube, to ensure that the flow blocking block will not completely block the discharge tube, thereby ensuring that water always flows through the discharge tube.

[0005] Preferably, the distance between the bottom of the flow block and the top of the valve body is greater than the distance between the top of the flow discharge tube and the bottom of the fixed block. This arrangement ensures that when the valve body moves completely downward out of the opening of the fixed block, there is still a certain distance between the flow block and the top of the flow discharge tube, and some water is always discharged through the flow discharge tube.

[0006] Preferably, the upper surface of the fixing block is an inclined surface, and the inclined surface is higher at one end close to the valve body and lower at one end away from the valve body.

[0007] Preferably, the upper surface of the fixing block is provided with concave and convex corrugated strips.

[0008] Preferably, a reinforcement block is provided at the lower end of the fixed block, the side of the reinforcement block is fixed to the inner wall of the energy dissipation cover, the upper surface of the reinforcement block is fixedly connected to the lower surface of the fixed block, and the lower surface of the reinforcement block is an inclined surface with a lower end close to the energy dissipation cover and a higher end away from the energy dissipation cover. The reinforcement block increases the firmness of the fixed block and reduces the probability of the fixed block falling off or being damaged under the impact of long-term water flow.

[0009] Preferably, the fixed block and the drain tube are connected by a plurality of support rods, which further fix the drain tube, making it more secure and reducing the probability of damage to the drain tube caused by water flow impact.

[0010] Preferably, spiral piece 1 and spiral piece 2 are both provided with raised reinforcing ribs, which can be fixed to spiral piece 1 and spiral piece 2 by welding, and the reinforcing ribs are arranged along the radial direction of the discharge tube. The reinforcing ribs increase friction when water flows through, further eliminating the energy of water, and also increase the firmness of spiral piece 1 and spiral piece 2 to cope with water flow impact.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Through the setting of the discharge cylinder, the water is divided into two parts and sent to the valve body. One part of the water flows through the discharge cylinder, and the other part of the water flows through the first spiral plate and the second spiral plate in sequence to dissipate energy. Since the first spiral plate and the second spiral plate rotate in opposite directions, after the water flows through the first spiral plate, it will flow in a spiral direction opposite to the first spiral plate under the guidance of the second spiral plate, further eliminating energy.

[0013] 2. Through the setting of the baffle block, more water flows to the space between the discharge tube and the inner wall of the energy dissipation cover, and a relatively small amount of water flows to the discharge tube. Moreover, the water also dissipates energy when it is blocked by the baffle block;

[0014] 3. After the water flows through the first spiral sheet and the second spiral sheet, it falls on the upper part of the fixed block. When flowing to the valve body, it needs to overcome the potential energy from low to high. At the same time, the corrugated strips on the fixed block also have the effect of decelerating and dissipating energy for the water flow; 4. The utility model has obvious energy dissipation effect, which effectively improves the service life of the device and increases safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a cone valve with an energy dissipation device of the utility model;

[0016] Figure 2 1 is a schematic diagram of the structure of spiral sheet 1 and spiral sheet 2;

[0017] Figure 3 1 is a schematic top view of spiral piece 1 and spiral piece 2;

[0018] In the figure: 1. energy dissipation cover; 2. water inlet pipe; 3. water outlet pipe; 4. fixing block; 5. valve body; 6. threaded rod; 7. discharge tube; 8. spiral piece 1; 9. spiral piece 2; 10. flow blocking block; 11. corrugated strip; 12. reinforcement block; 13. support rod; 14. reinforcing rib. DETAILED DESCRIPTION

[0019] The present invention will be described clearly and completely below with reference to the accompanying drawings.

[0020] like Figure 1 , Figure 2 As shown, the conical valve with an energy dissipation device described in the utility model includes an energy dissipation cover 1, the upper end of the energy dissipation cover 1 is connected to the water inlet pipe 2, the lower end of the energy dissipation cover 1 is connected to the water outlet pipe 3, the energy dissipation cover 1 is provided with a fixed block 4 with a middle opening and a conical valve body 5, the opening of the fixed block 4 is matched with the valve body 5, the fixed block 4 is fixed on the inner wall of the energy dissipation cover 1, and also includes a threaded rod 6, the upper end of the threaded rod 6 passes through the top wall of the energy dissipation cover 1 and is threadedly connected with the energy dissipation cover 1, the lower end of the threaded rod 6 passes through the discharge tube 7 and is connected with the valve body 5, the discharge tube 7 is arranged on the upper part of the fixed block 4, the outer wall of the discharge tube 7 is surrounded by a spiral piece 8 and a spiral piece 2 9 from top to bottom, the spiral piece 1 8 and the spiral piece 2 9 rotate in opposite directions, the outer edge and inner edge of the spiral piece 1 8 and the spiral piece 2 9 are respectively fixed to the inner wall of the energy dissipation cover 1 and the outer wall of the discharge tube 7; a conical baffle block 10 is provided on the threaded rod 6, and the baffle block 10 is arranged corresponding to the upper opening of the discharge tube 7.

[0021] The distance between the bottom of the baffle block 10 and the top of the valve body 5 is greater than the distance between the top of the discharge tube 7 and the bottom of the fixing block 4 .

[0022] The upper surface of the fixing block 4 is an inclined surface, and the end of the inclined surface close to the valve body 5 is higher than the end of the inclined surface away from the valve body 5 .

[0023] The upper surface of the fixing block 4 is provided with concave and convex corrugated strips 11 .

[0024] A reinforcement block 12 is provided at the lower end of the fixed block 4, and the side of the reinforcement block 12 is fixed to the inner wall of the energy dissipation cover 1. The upper surface of the reinforcement block 12 is fixedly connected to the lower surface of the fixed block 4. The lower surface of the reinforcement block 12 is an inclined surface with a lower end close to the energy dissipation cover 1 and a higher end away from the energy dissipation cover 1.

[0025] The fixed block 4 and the drain tube 7 are connected via a plurality of support rods 13 .

[0026] like Figure 3 As shown, spiral piece 1 8 and spiral piece 2 9 are both welded with raised reinforcing ribs 14 , and the reinforcing ribs 14 are arranged along the radial direction of the discharge tube 7 .

[0027] The working process is as follows: rotate the threaded rod 6, the valve body 5 begins to move out of the opening of the fixed block 4, and water begins to flow out from the water outlet pipe 3. At the same time, the water in the upper part enters the energy dissipation cover 1 through the water inlet pipe 2. After being blocked by the flow blocking block 10, part of the water enters between the discharge tube 7 and the inner wall of the energy dissipation cover 1, and part of the water enters the discharge tube 7. The water entering the discharge tube 7 is dissipated by the flow blocking block 10 and flows out of the opening of the fixed block 4; the water entering between the discharge tube 7 and the inner wall of the energy dissipation cover 1 flows through the spiral piece 1 8 and the spiral piece 2 9 with opposite rotation directions in turn, and after dissipating energy through the water turbulence and the reinforcing ribs 14, it falls to the upper surface of the fixed block 4, and flows out from the opening of the fixed block 4 after further dissipating energy by overcoming the potential energy and the corrugated strips.

Claims

1. A conical valve with an energy dissipation device, comprising an energy dissipation cover (1), wherein the upper end of the energy dissipation cover (1) is connected to a water inlet pipe (2), and the lower end of the energy dissipation cover (1) is connected to a water outlet pipe (3). A fixing block (4) with a middle opening and a conical valve body (5) are provided in the energy dissipation cover (1), wherein the opening of the fixing block (4) is matched with the valve body (5), and the fixing block (4) is fixed to the inner wall of the energy dissipation cover (1), characterized in that: The invention also comprises a threaded rod (6), the upper end of which passes through the top wall of the energy dissipation cover (1) and is threadedly connected to the energy dissipation cover (1), the lower end of which passes through a discharge tube (7) and is connected to the valve body (5), the discharge tube (7) being arranged on the upper part of the fixed block (4), the outer wall of the discharge tube (7) being surrounded by a spiral piece 1 (8) and a spiral piece 2 (9) from top to bottom, the spiral piece 1 (8) and the spiral piece 2 (9) having opposite rotation directions, the outer edge and inner edge of the spiral piece 1 (8) and the spiral piece 2 (9) being respectively fixed to the inner wall of the energy dissipation cover (1) and the outer wall of the discharge tube (7); and a conical flow block (10) being arranged on the threaded rod (6), the flow block (10) being arranged corresponding to the upper opening of the discharge tube (7).

2. The conical valve with energy dissipation device according to claim 1, characterized in that: The distance between the bottom of the flow blocking block (10) and the top of the valve body (5) is greater than the distance between the top of the flow discharge cylinder (7) and the bottom of the fixed block (4).

3. The conical valve with energy dissipation device according to claim 1, characterized in that: The upper surface of the fixing block (4) is an inclined surface, wherein the end of the inclined surface close to the valve body (5) is higher and the end of the inclined surface away from the valve body (5) is lower.

4. The conical valve with energy dissipation device according to claim 1, characterized in that: The upper surface of the fixing block (4) is provided with concave and convex corrugated strips (11).

5. The conical valve with energy dissipation device according to claim 1, characterized in that: A reinforcing block (12) is provided at the lower end of the fixing block (4). The side surface of the reinforcing block (12) is fixed to the inner wall of the energy dissipation cover (1). The upper surface of the reinforcing block (12) is fixedly connected to the lower surface of the fixing block (4). The lower surface of the reinforcing block (12) is an inclined surface with a lower end close to the energy dissipation cover (1) and a higher end away from the energy dissipation cover (1).

6. The conical valve with energy dissipation device according to claim 1, characterized in that: The fixed block (4) and the discharge tube (7) are connected via a plurality of support rods (13).

7. The conical valve with energy dissipation device according to claim 1, characterized in that: The spiral piece 1 (8) and the spiral piece 2 (9) are both provided with raised reinforcing ribs (14), and the reinforcing ribs (14) are arranged along the radial direction of the discharge tube (7).

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