Pressure safety valve for a new ice-water circulation circuit

Abstract

The utility model relates to valve technical field especially relates to a new type of pressure safety valve of ice water circulation loop, including valve housing, the lower fixedly connected with guide cylinder in valve housing inside, the top of guide cylinder swing joint has the valve seat, the outside swing joint of valve seat has the valve plate, the upper swing joint of valve housing inside has the screw block, the inside screw thread connection of screw block has the lower pressure mechanism, the utility model discloses a valve seat and valve plate are set up, be favorable to reducing the impurity on upper sealing washer and lower sealing washer, when pressure relief under the impact of fluid makes the blade be able to drive seat body rotation, and then drive lower sealing washer rotation, through the rotation of seat body and then drive connecting block make fixed link rotation, and then drive board body make upper sealing washer rotation, through the rotation of upper sealing washer and lower sealing washer, make the impurity on upper sealing washer and lower sealing washer can be thrown under the action of centrifugal force, reduce the possibility that the sealing is not tight because of the hindrance of impurity.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a novel pressure safety valve for ice water circulation circuits. Background Technology

[0002] In the dairy production process, pasteurization, fermentation tank temperature control and other processes rely on a clean ice water circulation loop for precise temperature control. The pressure safety valve in this loop is a key overpressure protection device. When the system pressure rises abnormally, the valve opens to release pressure and protect the system safety.

[0003] When existing pressure safety valves in chilled water circulation loops are in use, the chilled water medium may contain impurities from pipeline corrosion, seal wear, or the water itself. During the pressure relief process, high-speed fluid carries impurities through the sealing surface, and some impurities remain on the sealing surface. After the pressure relief is completed, the impurities can obstruct the seal, easily leading to continuous leakage and wasting energy. Summary of the Invention

[0004] In view of this, the present invention provides a novel pressure safety valve for an ice-water circulation circuit to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel pressure safety valve for a chilled water circulation circuit, comprising a valve housing, a guide cylinder fixedly connected to the lower part of the valve housing, a valve seat movably connected to the top of the guide cylinder, a valve plate movably connected to the outer side of the valve seat, a screw block movably connected to the upper part of the inner side of the valve housing, a pressing mechanism internally threaded onto the screw block, the valve seat comprising a rotating ring movably connected to the top of the guide cylinder, a ball bearing movably connected between the rotating ring and the guide cylinder, a seat body fixedly connected to the top of the rotating ring, a lower sealing gasket fixedly connected to the top of the seat body, a blade fixedly connected to the inner side of the seat body, a connecting block fixedly connected to the outer side of the seat body, and a fixing rod fixedly connected to the outer side of the connecting block.

[0006] Preferably, the valve housing includes a shell, a through pipe is fixedly connected to the outer side of the shell, a connecting ring is fixedly connected to the lower part of the outer side of the shell, a sealing plate is fixedly connected to the lower part of the connecting ring, mounting holes are provided inside the connecting ring and the sealing plate, a baffle is fixedly connected to the middle of the interior of the shell, a sealing sleeve is fixedly connected to the inner side of the baffle, a guide post is fixedly connected between the baffle and the shell, a spring is fixedly connected between the baffle and the pressing mechanism, a fixing sleeve is fixedly connected to the top of the shell, and a limit ring is fixedly connected to the inner side of the fixing sleeve.

[0007] Preferably, the guide cylinder includes a cylinder body fixedly connected to the lower inner side of the valve housing, the top of the cylinder body is provided with a rotating groove, and a sealing ring is fixedly connected to the top of the cylinder body.

[0008] Preferably, the valve plate includes a plate body movably connected to the outside of the fixed rod, a connecting rod movably connected to the upper part of the plate body, a lifting plate fixedly connected to the top of the connecting rod, a through hole provided inside the plate body, and an upper sealing gasket fixedly connected to the lower part of the plate body.

[0009] Preferably, the pressing mechanism includes a screw threaded inside the screw block, and a pressure plate is fixedly connected to the lower part of the screw.

[0010] Preferably, the screw block includes a block movably connected to the upper inner side of the valve housing, a screw cylinder is fixedly connected inside the block, an anti-slip pad is fixedly connected to the lower part of the block, and an anti-slip groove is provided on the outer side of the block.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention, by setting a valve seat and a valve plate, helps to reduce impurities on the upper and lower sealing gaskets. During pressure relief, the impact of the fluid causes the blade to rotate, which in turn causes the lower sealing gasket to rotate. The rotation of the seat causes the connecting block to rotate, which in turn causes the fixing rod to rotate, which in turn causes the plate to rotate, causing the upper sealing gasket to rotate. Through the rotation of the upper and lower sealing gaskets, impurities on the upper and lower sealing gaskets can be thrown out under the action of centrifugal force, reducing the possibility of poor sealing due to impurities. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the valve housing, valve plate, pressing mechanism, and screw block of this utility model; Figure 4 This is a cross-sectional structural diagram of the guide cylinder of this utility model; Figure 5 This is a cross-sectional structural diagram of the valve seat of this utility model.

[0013] In the diagram: 1. Valve housing; 101. Housing; 102. Connecting ring; 103. Mounting hole; 104. Sealing plate; 105. Sealing sleeve; 106. Baffle; 107. Through pipe; 108. Guide post; 109. Limiting ring; 110. Fixing sleeve; 111. Spring; 2. Guide cylinder; 201. Cylinder body; 202. Rotary groove; 203. Sealing ring; 3. Valve seat; 301. Seat body; 302. Connecting block 303. Fixed rod; 304. Blade; 305. Lower sealing gasket; 306. Rotary ring; 307. Ball bearing; 4. Valve plate; 401. Plate body; 402. Upper sealing gasket; 403. Through hole; 404. Connecting rod; 405. Lifting plate; 5. Pressing mechanism; 501. Screw; 502. Pressure plate; 6. Tightening block; 601. Block body; 602. Screw barrel; 603. Anti-slip pad; 604. Anti-slip groove. Detailed Implementation

[0014] Reference Figure 1-5The novel pressure safety valve for a chilled water circulation circuit provided by this utility model includes a valve body 1, a guide cylinder 2 fixedly connected to the lower part of the valve body 1, a valve seat 3 movably connected to the top of the guide cylinder 2, a valve plate 4 movably connected to the outer side of the valve seat 3, a screw block 6 movably connected to the upper part of the inner side of the valve body 1, and a pressing mechanism 5 internally threadedly connected to the screw block 6. The valve seat 3 includes a rotating ring 306 movably connected to the top of the guide cylinder 2, a ball bearing 307 movably connected between the rotating ring 306 and the guide cylinder 2, and a seat body 301 fixedly connected to the top of the rotating ring 306. The rotating ring 306 can be rotated within the cylinder 201. The internal rotation, facilitated by the ball bearing 307, allows the rotating ring 306 to rotate more easily, thereby enabling the seat 301 to rotate. A lower sealing gasket 305 is fixedly connected to the top of the seat 301. Both the lower sealing gasket 305 and the upper sealing gasket 402 are made of rubber, with the top of the lower sealing gasket 305 fitting against the lower part of the upper sealing gasket 402 to ensure the seal between the plate 401 and the seat 301. A blade 304 is fixedly connected to the inner side of the seat 301. The blade 304 is angled, and during pressure relief, the impact of the fluid causes the blade 304 to rotate the seat. 301 rotates, and a connecting block 302 is fixedly connected to the outer side of the seat 301. A fixing rod 303 is fixedly connected to the outer side of the connecting block 302. During use, when the pressure in the ice water circulation circuit is too high, the valve plate 4 can move upward under the pressure, allowing the fluid to be discharged from the through pipe 107 through the cylinder 201 and the seat 301, thereby relieving pressure. After the pressure is relieved, the valve seat 3 can descend under the action of the spring 111, allowing the upper sealing gasket 402 to press back onto the lower sealing gasket 305 for sealing until the next pressure relief. During pressure relief, the flow... The impact of the body causes the blade 304 to drive the seat 301 to rotate, which in turn drives the lower sealing gasket 305 to rotate. The rotation of the seat 301 drives the connecting block 302 to rotate the fixing rod 303. The rotation of the fixing rod 303 drives the plate 401 to rotate outside the connecting rod 404, which in turn drives the upper sealing gasket 402 to rotate. The rotation of the upper sealing gasket 402 and the lower sealing gasket 305 allows impurities on the upper sealing gasket 402 and the lower sealing gasket 305 to be thrown out under the action of centrifugal force, reducing the possibility of poor sealing due to the obstruction of impurities.

[0015] Furthermore, the valve housing 1 includes a housing 101. A through pipe 107 is fixedly connected to the outer side of the housing 101, communicating with the housing 101. A connecting ring 102 is fixedly connected to the lower outer side of the housing 101. A sealing plate 104 is fixedly connected to the lower part of the connecting ring 102. The sealing plate 104 is made of rubber and is used to ensure better sealing between the pressure relief safety valve and the chilled water circulation circuit. Both the connecting ring 102 and the sealing plate 104 have mounting holes 103 inside, through which the pressure relief safety valve can be fixed to the chilled water circulation circuit. A baffle 106 is fixedly connected to the middle inside the housing 101. A sealing sleeve 105 is fixedly connected to the inner side of the baffle 106 for sealing. The sleeve 105 is made of rubber and is used to ensure better sealing between the connecting rod 404 and the baffle 106, preventing fluid from entering the upper part of the housing 101 through the baffle 106. A guide post 108 is fixedly connected between the baffle 106 and the housing 101. The guide post 108 is used to guide the lifting and lowering of the pressure plate 502 and the lifting plate 405. A spring 111 is fixedly connected between the baffle 106 and the pressing mechanism 5. The spring 111 is in a compressed state. A fixed sleeve 110 is fixedly connected to the top of the housing 101. A limit ring 109 is fixedly connected to the inner side of the fixed sleeve 110. The limit ring 109 is used for the rotation of the block 601 and ensures that the block 601 will not detach from the fixed sleeve 110.

[0016] Furthermore, the guide cylinder 2 includes a cylinder 201 fixedly connected to the lower inner side of the valve housing 1. The top of the cylinder 201 is provided with a rotating groove 202 for the rotation of the rotating ring 306 and the ball 307. A sealing ring 203 is fixedly connected to the top of the cylinder 201. The sealing ring 203 is made of rubber material. The inner wall of the sealing ring 203 fits against the seat 301 to ensure better sealing between the cylinder 201 and the seat 301.

[0017] Furthermore, the valve plate 4 includes a plate body 401 movably connected to the outside of the fixed rod 303. A connecting rod 404 is movably connected to the upper part of the inside of the plate body 401. The plate body 401 can rotate below the outside of the connecting rod 404. A lifting plate 405 is fixedly connected to the top of the connecting rod 404. The connecting rod 404 can rise and fall inside the sealing sleeve 105. The lifting plate 405 can rise and fall outside the guide post 108. The inside of the plate body 401 is provided with a through hole 403 for the fixed rod 303 to pass through. The plate body 401 can rise and fall outside the fixed rod 303. Under the drive of the fixed rod 303, the plate body 401 can rotate. An upper sealing gasket 402 is fixedly connected to the lower part of the plate body 401. The lower part of the upper sealing gasket 402 is a convex arc surface structure that matches the top of the lower sealing gasket 305, so that the contact area between the upper sealing gasket 402 and the lower sealing gasket 305 is larger and the sealing effect is better.

[0018] Furthermore, the pressing mechanism 5 includes a screw 501 threadedly connected inside the screw block 6, and a pressure plate 502 fixedly connected to the lower part of the screw 501. The screw 501 can be raised and lowered inside the housing 101, and the pressure plate 502 can be raised and lowered outside the guide post 108.

[0019] Furthermore, the screw block 6 includes a block 601 movably connected to the upper inner side of the valve housing 1. A screw cylinder 602 is fixedly connected inside the block 601. The screw cylinder 602 has a screw groove inside that matches the outer thread of the screw 501. An anti-slip pad 603 is fixedly connected to the lower part of the block 601. The anti-slip pad 603 is made of rubber and has a good anti-slip effect to ensure the stability of the block 601 and prevent the block 601 from easily rotating relative to the housing 101. An anti-slip groove 604 is provided on the outer side of the block 601 to prevent slippage and ensure that the user will not slip when screwing the block 601. Screwing the block 601 allows the screw cylinder 602 to rotate, and the screw 501 can be raised or lowered by the forward or reverse rotation of the screw cylinder 602, which in turn allows the pressure plate 502 to be raised or lowered. The raising or lowering of the pressure plate 502 changes the compression of the spring 111, thereby facilitating the change of the pressure relief threshold.

[0020] Working principle: When the pressure in the chilled water circulation circuit is too high, the pressure causes the valve plate 4 to move upward, allowing fluid to be discharged through the cylinder 201 and seat 301 from the through pipe 107, thus relieving pressure. After pressure relief, the valve seat 3 is lowered by the spring 111, allowing the upper sealing gasket 402 to press back onto the lower sealing gasket 305 for sealing until the next pressure relief. During pressure relief, the impact of the fluid causes the vane 304 to drive the seat 301. The rotation of the seat 301 causes the lower sealing gasket 305 to rotate, which in turn causes the connecting block 302 to rotate, thus causing the fixing rod 303 to rotate. The rotation of the fixing rod 303 causes the plate 401 to rotate outside the connecting rod 404, which in turn causes the upper sealing gasket 402 to rotate. The rotation of the upper sealing gasket 402 and the lower sealing gasket 305 allows impurities on the upper sealing gasket 402 and the lower sealing gasket 305 to be thrown out under the action of centrifugal force, reducing the possibility of poor sealing due to the obstruction of impurities.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel pressure safety valve for a chilled water circulation circuit, comprising a valve body (1), characterized in that, A guide cylinder (2) is fixedly connected to the lower part of the valve housing (1). A valve seat (3) is movably connected to the top of the guide cylinder (2). A valve plate (4) is movably connected to the outer side of the valve seat (3). A screw block (6) is movably connected to the upper part of the inner side of the valve housing (1). A pressing mechanism (5) is threadedly connected to the inside of the screw block (6). The valve seat (3) includes a rotating ring (306) movably connected to the top of the guide cylinder (2). A ball bearing (307) is movably connected between the rotating ring (306) and the guide cylinder (2). A seat body (301) is fixedly connected to the top of the rotating ring (306). A lower sealing gasket (305) is fixedly connected to the top of the seat body (301). A blade (304) is fixedly connected to the inner side of the seat body (301). A connecting block (302) is fixedly connected to the outer side of the seat body (301). A fixing rod (303) is fixedly connected to the outer side of the connecting block (302).

2. The pressure safety valve for the novel ice-water circulation circuit according to claim 1, characterized in that, The valve housing (1) includes a housing (101), a through pipe (107) is fixedly connected to the outside of the housing (101), a connecting ring (102) is fixedly connected to the lower part of the outside of the housing (101), a sealing plate (104) is fixedly connected to the lower part of the connecting ring (102), and mounting holes (103) are provided inside the connecting ring (102) and the sealing plate (104). A baffle (106) is fixedly connected to the middle inside the housing (101), a sealing sleeve (105) is fixedly connected to the inner side of the baffle (106), a guide post (108) is fixedly connected between the baffle (106) and the housing (101), a spring (111) is fixedly connected between the baffle (106) and the pressing mechanism (5), a fixing sleeve (110) is fixedly connected to the top of the housing (101), and a limit ring (109) is fixedly connected to the inner side of the fixing sleeve (110).

3. The pressure safety valve for the novel ice-water circulation circuit according to claim 1, characterized in that, The guide cylinder (2) includes a cylinder (201) fixedly connected to the lower inner side of the valve housing (1). The top of the cylinder (201) is provided with a rotating groove (202), and a sealing ring (203) is fixedly connected to the top of the cylinder (201).

4. The pressure safety valve for the novel ice-water circulation circuit according to claim 1, characterized in that, The valve plate (4) includes a plate body (401) movably connected to the outside of the fixed rod (303). A connecting rod (404) is movably connected to the upper part of the plate body (401). A lifting plate (405) is fixedly connected to the top of the connecting rod (404). A through hole (403) is provided inside the plate body (401). An upper sealing gasket (402) is fixedly connected to the lower part of the plate body (401).

5. The pressure safety valve for the novel ice-water circulation circuit according to claim 1, characterized in that, The pressing mechanism (5) includes a screw (501) threaded inside the screw block (6), and a pressure plate (502) is fixedly connected to the lower part of the screw (501).

6. The pressure safety valve for the novel ice-water circulation circuit according to claim 1, characterized in that, The screw block (6) includes a block (601) movably connected to the upper inner side of the valve housing (1), a screw cylinder (602) is fixedly connected inside the block (601), an anti-slip pad (603) is fixedly connected to the lower part of the block (601), and an anti-slip groove (604) is provided on the outer side of the block (601).

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