Urea cooling water packing sealing device

Abstract

The utility model relates to the technical field of sealing filler cooling, in particular to a urea cooling water filler sealing device, which adopts the technical scheme that the urea cooling water filler sealing device comprises a cooling piece, a rotating piece is arranged at the top of the cooling piece, a fixed piece is fixedly mounted at the bottom of the cooling piece, a cavity is formed in the outer side of the interior of the cooling piece, and the urea cooling water filler sealing device further comprises a communicating pipe; the communicating pipes are communicated with two sides of the upper surface of the cooling piece; positioning holes are formed in the two sides of the upper surface of the cooling piece respectively, and positioning pieces are installed in the positioning holes in an embedded mode. The utility model solves the problem that the sealing performance is affected due to temperature rise under the condition of long-time use of the sealing filler at the present stage.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing filler temperature reduction, in particular to a urea cooling water filler sealing device. Background Art

[0002] Packing seal refers to a dynamic sealing device that generates a compressive force between the packing and the rotating parts and the fixed parts through pre-tightening or the self-tightening effect of the medium pressure. It is also called "stuffing box seal". There are many structural forms, mainly composed of packing, stuffing box and packing fixing parts. Commonly used packing materials include asbestos fabric, carbon fiber, rubber, flexible graphite and engineering plastics, which are prefabricated into rings or strips. Some need to be pre-impregnated with fillers with good lubricity, and adopt multi-ring or spiral multi-layer structure. The stuffing box is used to place the packing. The packing fixing parts include glands, bolts and springs, which are used to pre-tighten the packing and prevent the medium from leaking out during operation. The spring can play a compensating role.

[0003] The packing seal design of high-performance cooling water system mainly consists of stuffing box, braided ring, packing gland, sleeve, packing, valve, etc., and forms a labyrinth seal structure through the sealing material during use. During the rotation of the shaft, the fibers in the packing will be wound around the sleeve and rotate synchronously with the shaft to form a "rotating layer". Near the inner wall of the stuffing box, the packing adheres to it to form an "immovable layer". The water pump packing seal uses graphite packing. After the packing is loaded into the packing cavity, it is axially compressed by the gland screw. When the shaft and the packing have relative movement, due to the plasticity of the packing, it generates radial force and is in close contact with the shaft. At the same time, the graphite in the packing is squeezed out to form a protective film between the contact surfaces. The uncontacted concave part forms a groove with a thicker medium lubricating film. The contact part and the non-contact part form an irregular maze to prevent liquid leakage.

[0004] However, when the sealing packing is in use, the sealing performance may be affected due to the overly high temperature, so a urea cooling water packing sealing device is needed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a urea cooling water packing sealing device, which has the advantage of cooling the sealing packing to avoid affecting the sealing performance, and solves the problem that the sealing packing temperature rises and the sealing performance is affected when it is used for a long time at this stage.

[0006] To achieve the above object, the utility model provides the following technical solution: a urea cooling water packing sealing device, comprising a cooling member, a rotating member is provided on the top of the cooling member, a fixing member is fixedly installed on the bottom of the cooling member, a cavity is provided inside and outside the cooling member, and also includes a connecting pipe;

[0007] The connecting pipe is connected and installed on both sides of the upper surface of the cooling element;

[0008] Wherein, positioning holes are respectively opened on both sides of the upper surface of the cooling member and positioning members are embedded and installed.

[0009] When using a urea cooling water packing sealing device in the technical solution, graphite packing is filled on the inner side of the cooling member. After the graphite packing is loaded into the inner side of the cooling member, the positioning member is embedded and installed in the cooling member, and the rotating member and the fixed member are respectively installed at the upper and lower ends of the cooling member through the first positioning rod and the second positioning rod provided on the rotating member and the fixed member, and the fixed member and the rotating member are fixedly installed by screwing the mounting screws provided on the fixed member, and the cooling member is clamped and positioned on the opposite side of the fixed member and the rotating member. At this time, the rotating shaft can pass through the reserved holes of the fixed member and the rotating member, so that the rotating shaft contacts the graphite packing, so that the graphite packing plays a sealing role. When working, cooling water can be added to the cavity through the connecting pipe, and desalted water is selected as the packing cooling water, so that the cooling water is circulated in the cavity through the two connecting pipes, thereby realizing the cooling of the sealing packing.

[0010] Preferably, a mounting hole is opened in the middle of the top of the cooling element, and an open structure design is adopted in the middle of the top of the cooling element.

[0011] A mounting hole is opened in the middle of the top of the cooling member, and the diameter of the mounting hole is matched with the opening position of the reserved hole on the rotating member, so that the rotating shaft can pass through, and an open structure design is adopted in the middle of the top of the cooling member, so as to facilitate the filling of the sealing filler.

[0012] Preferably, the inner side of the lower surface of the rotating part is grooved and embedded with two sealing rings, the front and rear ends of the lower surface of the rotating part on the opposite side of the two sealing rings are respectively fixedly installed with first positioning rods, a reserved hole is opened at the center of the top circle of the rotating part, and the front and rear ends of the lower surface of the rotating part are respectively fixedly installed with nut columns.

[0013] By making grooves on the inner side of the lower surface of the rotating part and embedding and installing two sealing rings, the sealing performance between the rotating part and the cooling part can be improved by the two sealing rings.

[0014] Preferably, the inner side of the upper surface of the fixing piece is grooved and embedded with two sealing rings, second positioning rods are fixedly installed at the front and rear ends of the upper surface of the fixing piece on the side opposite to the two sealing rings, a reserved hole is opened at the center of the bottom circle of the fixing piece, and holes are opened at the front and rear ends of the lower surface of the fixing piece and mounting screws are movably installed.

[0015] By opening grooves on the inner side of the upper surface of the fixing part and embedding and installing two sealing rings, the sealing performance between the fixing part and the cooling part can be improved by the two sealing rings.

[0016] Preferably, the cavity is connected to two connecting pipes respectively.

[0017] By connecting the cavity with the two connecting pipes respectively, the cooling water in the cavity can be circulated through the two connecting pipes, thereby cooling the sealing packing.

[0018] Preferably, both upper and lower ends of the positioning member are provided with limiting holes, and the first positioning rod and the second positioning rod are movably inserted at the upper and lower ends of the positioning member respectively.

[0019] By providing limiting holes at both ends of the positioning member, and movably inserting the first positioning rod and the second positioning rod at the upper and lower ends of the positioning member, the rotating member and the fixed member can be installed at the upper and lower ends of the cooling member through the positioning member.

[0020] Preferably, the top of the mounting screw passes through the fixing piece and is threadedly connected to the nut column.

[0021] The rotating member is fixedly connected to the fixed member by passing the top of the mounting screw through the fixed member and threading the screw with the nut column.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] The utility model provides a connecting pipe, and the connecting pipe is connected and installed on both sides of the upper surface of the cooling member. At the same time, positioning holes are respectively opened on both sides of the upper surface of the cooling member and positioning members are embedded and installed. The graphite packing is filled inside the cooling member. After the graphite packing is loaded into the inner side of the cooling member, the positioning member is embedded and installed in the cooling member. The rotating member and the fixed member are respectively installed on the upper and lower ends of the cooling member through the first positioning rod and the second positioning rod provided on the rotating member and the fixed member. The fixed member and the rotating member are fixedly installed by screwing the mounting screws provided on the fixed member, and the cooling member is clamped and positioned on the opposite side of the fixed member and the rotating member. At this time, the rotating shaft can pass through the reserved holes of the fixed member and the rotating member, so that the rotating shaft contacts the graphite packing, so that the graphite packing plays a sealing role. When working, cooling water can be added into the cavity through the connecting pipe, and desalted water is selected as the packing cooling water, so that the cooling water is circulated in the cavity through the two connecting pipes, thereby realizing the cooling of the sealing packing, achieving the effect of cooling the sealing packing, thereby avoiding the sealing performance being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3For the utility model Figure 2 The structural diagram of the enlarged part in the middle;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the cooling element of the utility model.

[0028] In the figure: 1. fixing part; 2. rotating part; 3. reserved hole; 4. connecting pipe; 5. cooling part; 6. mounting screw; 7. first positioning rod; 8. sealing ring; 9. nut column; 10. second positioning rod; 11. positioning part; 12. cavity; 13. positioning hole; 14. mounting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the utility model is: a urea cooling water packing sealing device, including a cooling member 5, a rotating member 2 is provided on the top of the cooling member 5, a fixing member 1 is fixedly installed on the bottom of the cooling member 5, a cavity 12 is provided inside and outside the cooling member 5, and also includes a connecting pipe 4;

[0032] Specifically,

[0033] The connecting pipe 4 is connected and installed on both sides of the upper surface of the cooling member 5;

[0034] Positioning holes 13 are respectively opened on both sides of the upper surface of the cooling member 5 and positioning members 11 are embedded and installed.

[0035] By setting a connecting pipe 4, and connecting the connecting pipe 4 to both sides of the upper surface of the cooling member 5, positioning holes 13 are respectively opened on both sides of the upper surface of the cooling member 5 and positioning members 11 are embedded and installed, and the graphite packing is filled inside the cooling member 5. After the graphite packing is loaded into the inner side of the cooling member 5, the positioning member 11 is embedded and installed in the cooling member 5, and the rotating member 2 and the fixed member 1 are respectively installed at the upper and lower ends of the cooling member 5 by the first positioning rod 7 and the second positioning rod 10 provided on the rotating member 2 and the fixed member 1, and the fixed member 1 is screwed by screwing the mounting screws 6 provided on the fixed member 1, so as to fix the fixed member 1 and the rotating member 2. The fixing member 2 is fixedly installed, and the cooling member 5 is clamped and positioned on the opposite side of the fixing member 1 and the rotating member 2. At this time, the rotating shaft can pass through the reserved holes 3 of the fixing member 1 and the rotating member 2, so that the rotating shaft contacts the graphite packing, thereby achieving a sealing effect through the graphite packing. When working, cooling water can be added into the cavity 12 through the connecting pipe 4, and desalted water is selected as the packing cooling water, so that the cooling water is circulated in the cavity 12 through the two connecting pipes 4, thereby realizing the cooling of the sealing packing, achieving the effect of cooling the sealing packing, thereby avoiding the sealing performance being affected.

[0036] Furthermore, a mounting hole 14 is provided in the middle of the top of the cooling member 5 , and the middle of the top of the cooling member 5 adopts an open structure design.

[0037] By opening a mounting hole 14 in the middle of the top of the cooling member 5, and matching the diameter of the mounting hole 14 with the opening position of the reserved hole 3 on the rotating member 2, the rotating shaft can pass through, and the top middle of the cooling member 5 adopts an open structure design, so as to facilitate the filling of the sealing filler.

[0038] Furthermore, two sealing rings 8 are embedded and installed on the inner side of the lower surface of the rotating part 2, and first positioning rods 7 are fixedly installed on the front and rear ends of the lower surface of the rotating part 2 on the opposite side of the two sealing rings 8. A reserved hole 3 is opened at the center of the top circle of the rotating part 2, and nut columns 9 are fixedly installed on the front and rear ends of the lower surface of the rotating part 2.

[0039] By making grooves on the inner side of the lower surface of the rotating member 2 and embedding and installing two sealing rings 8, the sealing performance between the rotating member 2 and the cooling member 5 can be improved by the two sealing rings 8.

[0040] Furthermore, two sealing rings 8 are embedded and installed on the inner side of the upper surface of the fixing member 1, and second positioning rods 10 are fixedly installed on the front and rear ends of the upper surface of the fixing member 1 on the side opposite to the two sealing rings 8. A reserved hole 3 is opened at the center of the bottom circle of the fixing member 1, and holes are opened on the front and rear ends of the lower surface of the fixing member 1 and mounting screws 6 are movably installed.

[0041] By making grooves on the inner side of the upper surface of the fixing member 1 and embedding and installing two sealing rings 8 , the sealing performance between the fixing member 1 and the cooling member 5 can be improved by the two sealing rings 8 .

[0042] Furthermore, the cavity 12 is connected and installed with two connecting pipes 4 respectively.

[0043] By connecting the cavity 12 with the two connecting pipes 4 respectively, the cooling water in the cavity 12 can be circulated through the two connecting pipes 4, thereby cooling the sealing packing.

[0044] Furthermore, limiting holes are provided at both upper and lower ends of the positioning member 11 , and the first positioning rod 7 and the second positioning rod 10 are movably inserted at the upper and lower ends of the positioning member 11 , respectively.

[0045] By providing limiting holes at both ends of the positioning member 11 and movably inserting the first positioning rod 7 and the second positioning rod 10 at the upper and lower ends of the positioning member 11 respectively, the rotating member 2 and the fixed member 1 can be installed at the upper and lower ends of the cooling member 5 through the positioning member 11.

[0046] Furthermore, the top of the mounting screw 6 passes through the fixing member 1 and is threadedly connected to the nut column 9 .

[0047] The rotating member 2 is fixedly connected to the fixing member 1 by passing the top of the mounting screw 6 through the fixing member 1 and threading the mounting screw 6 with the nut column 9 .

[0048] When the utility model is used, the graphite packing is filled inside the cooling member 5. After the graphite packing is loaded inside the cooling member 5, the positioning member 11 is embedded and installed inside the cooling member 5, and the rotating member 2 and the fixed member 1 are respectively installed at the upper and lower ends of the cooling member 5 through the first positioning rod 7 and the second positioning rod 10 provided on the rotating member 2 and the fixed member 1, and the fixed member 1 and the rotating member 2 are fixedly installed by screwing the mounting screw 6 provided on the fixed member 1, and the cooling member 5 is clamped and positioned on the opposite side of the fixed member 1 and the rotating member 2. At this time, the rotating shaft can pass through the reserved holes 3 of the fixed member 1 and the rotating member 2, so that the rotating shaft contacts the graphite packing, so that the graphite packing plays a sealing role. When working, cooling water can be added into the cavity 12 through the connecting pipe 4, and desalted water is selected as the packing cooling water, so that the cooling water is circulated in the cavity 12 through the two connecting pipes 4, thereby realizing the cooling of the sealing packing.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A urea cooling water packing sealing device, comprising a cooling member (5), wherein a rotating member (2) is provided on the top of the cooling member (5), a fixing member (1) is fixedly installed on the bottom of the cooling member (5), and a cavity (12) is provided inside and outside the cooling member (5), characterized in that: Also includes: A connecting pipe (4) is connected and installed on both sides of the upper surface of the cooling element (5); Wherein, positioning holes (13) are respectively opened on both sides of the upper surface of the cooling member (5) and positioning members (11) are embedded and installed.

2. A urea cooling water packing sealing device according to claim 1, characterized in that: A mounting hole (14) is provided in the middle of the top of the cooling element (5), and an open structure design is adopted in the middle of the top of the cooling element (5).

3. The urea cooling water packing sealing device according to claim 1, characterized in that: The inner side of the lower surface of the rotating member (2) is grooved and embedded with two sealing rings (8); the front and rear ends of the lower surface of the rotating member (2) on the side opposite to the two sealing rings (8) are respectively fixedly mounted with first positioning rods (7); a reserved hole (3) is opened at the center of the top circle of the rotating member (2); and nut columns (9) are respectively fixedly mounted at the front and rear ends of the lower surface of the rotating member (2).

4. The urea cooling water packing sealing device according to claim 1, characterized in that: The inner side of the upper surface of the fixing member (1) is grooved and embedded with two sealing rings (8); the front and rear ends of the upper surface of the fixing member (1) on the side opposite to the two sealing rings (8) are respectively fixedly mounted with second positioning rods (10); a reserved hole (3) is opened at the center of the bottom circle of the fixing member (1); the front and rear ends of the lower surface of the fixing member (1) are respectively opened with holes and movably mounted with mounting screws (6).

5. The urea cooling water packing sealing device according to claim 1, characterized in that: The cavity (12) is connected and installed with two connecting pipes (4) respectively.

6. The urea cooling water packing sealing device according to claim 1, characterized in that: The upper and lower ends of the positioning member (11) are both provided with limiting holes, and the first positioning rod (7) and the second positioning rod (10) are movably inserted at the upper and lower ends of the positioning member (11) respectively.

7. A urea cooling water packing sealing device according to claim 4, characterized in that: The top of the mounting screw (6) passes through the fixing piece (1) and is threadedly connected to the nut column (9).

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