CN211116772U - Mechanical sealing device for pumps - Google Patents
Mechanical sealing device for pumps Download PDFInfo
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- CN211116772U CN211116772U CN201922097770.3U CN201922097770U CN211116772U CN 211116772 U CN211116772 U CN 211116772U CN 201922097770 U CN201922097770 U CN 201922097770U CN 211116772 U CN211116772 U CN 211116772U
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Abstract
The utility model provides a pump class mechanical seal device relates to mechanical seal technical field, has solved the relatively poor and lower technical problem of work efficiency of cooling circulation pump seal effect among the ferrous metallurgy trade that exists among the prior art, pump class mechanical seal device includes seal box and mechanical seal subassembly, wherein: the mechanical seal assembly is arranged in the seal box; the sealing box is arranged on the inner wall of the pump body, the end part of the output shaft sequentially penetrates through the pump body and the sealing box, then is arranged in the pump cavity and is in transmission connection with the impeller, and the mechanical sealing assembly is sleeved on the output shaft; the utility model discloses a seal box can make mechanical seal subassembly work alone, reduces water and mechanical seal subassembly's contact to reduce the iron oxide scale wearing and tearing mechanical seal subassembly of aquatic, on the basis of guaranteeing work efficiency, effectively prolong life cycle.
Description
Technical Field
The utility model relates to a mechanical seal technical field, concretely relates to pump class mechanical seal device.
Background
At present, the steel plate in the heating and rolling process is generally washed by water in the technical process of the ferrous metallurgy industry in China to achieve the cooling effect, after the steel plate is washed, water flows into a cyclone well, the water is circulated under the action of a circulating pump, in the process, a large amount of iron oxide scales are often mixed in the water after the steel plate is washed, the iron oxide scales in the water can influence the working efficiency of the circulating pump, the mechanical sealing device of the circulating pump is greatly abraded, and therefore the existing working condition environment has higher requirements on the circulating pump.
Current water pump adopts traditional mechanical seal usually, traditional mechanical seal installs on the outer wall of water pump usually, under foretell operating mode, will produce wearing and tearing often about using six months, thereby lead to seriously leaking, the loss of leakproofness, the maintenance cost of device has greatly been increased, to this, a sealless self priming pump has appeared again in the market, this sealless self priming pump has prolonged life cycle to a certain extent, but because sealless self priming pump adopts the auxiliary impeller to seal, the auxiliary impeller can lose certain power at the in-process of work, consequently, cause the decline of the whole power of sealless self priming pump, only reached 50% -60% of traditional mechanical seal water pump, work efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pump mechanical sealing device to solve the technical problems of poor sealing effect and low working efficiency of a cooling circulating pump in the ferrous metallurgy industry in the prior art; the utility model provides a plurality of technical effects that the preferred technical scheme can produce (the seal box includes box body and mount pad, the mount pad can be dismantled and set up on the pump body inner wall, detachable connected mode, be convenient for sealing device's installation and later maintenance, the seal box intercommunication is provided with inlet tube and outlet pipe, cooling water is leaded into in the seal box through the inlet tube, derive through the outlet pipe, on the one hand can play the effect of cooling mechanical seal subassembly, on the other hand when mechanical seal box wearing and tearing, the cooling water can dilute the iron scale, thereby further reduce the loss of mechanical seal subassembly, simultaneously the partial iron scale after diluting can be discharged the pump body from the outlet pipe, thereby reduce pressure, prolong the life of mechanical seal subassembly, mechanical seal stationary ring and mechanical seal rotating ring cooperate, effectively prevent the medium leakage, the quantity of mechanical seal stationary ring sets up to two, the mechanical seal movable ring is arranged between the two mechanical seal static rings, and the two end faces are sealed, so that the sealing effect is further improved; the mechanical seal moving rings are arranged in two numbers, springs are arranged between the two mechanical seal moving rings, the number of the springs is at least two, and all the springs are arranged in the circumferential direction, so that the compensation and buffering effects are mainly achieved, and the mechanical seal end face generates reasonable end face specific pressure; the static ring sealing ring prevents leakage between the static ring and the box body and between the static ring and the base; the dynamic ring seal ring prevents leakage of media from between the mechanical seal dynamic ring and the output shaft, etc.); see below for details.
In order to achieve the above purpose, the utility model provides a following technical scheme:
The utility model provides a pair of pump class mechanical seal device, including seal box and mechanical seal subassembly, wherein: the mechanical seal assembly is arranged in the seal box; the sealing box is arranged on the inner wall of the pump body, the end part of the output shaft sequentially penetrates through the pump body and the sealing box, then is arranged in the pump cavity and is in transmission connection with the impeller, and the mechanical sealing assembly is sleeved on the output shaft.
Preferably, the sealing box comprises a box body and a mounting seat, wherein: the mounting seat is detachably arranged on the inner wall of the pump body; the box body is arranged on the mounting seat; the mechanical sealing assembly is arranged in the box body; the output shaft penetrates through the pump body, the mounting seat and the box body in sequence and then is connected with the impeller in a transmission mode.
Preferably, the seal box is provided with a water inlet pipe and a water outlet pipe in a communicated manner, the water inlet pipe and the water outlet pipe penetrate through the pump body, and cooling water is guided into the seal box from the water inlet pipe and guided out from the water outlet pipe.
Preferably, the mechanical seal assembly comprises a mechanical seal stationary ring and a mechanical seal moving ring, wherein: the mechanical seal static ring is fixedly arranged on the mounting seat, and the output shaft penetrates through the mechanical seal static ring and can rotate relative to the mechanical seal static ring; the mechanical seal rotating ring is sleeved on the output shaft, and the mechanical seal rotating ring and the output shaft rotate synchronously.
Preferably, the number of the mechanical seal static rings is two, and the mechanical seal moving ring is arranged between the two mechanical seal static rings.
Preferably, the number of the mechanical seal rotating rings is two, and the two mechanical seal rotating rings are arranged between the two mechanical seal static rings.
Preferably, an elastic part is connected between the two mechanical seal rotating rings, and the output shaft penetrates through the elastic part.
Preferably, the elastic member comprises at least two springs, all of the springs are connected and arranged between the two mechanical seal moving rings, and all of the springs are circumferentially arranged relative to the output shaft.
Preferably, a stationary ring sealing ring is sleeved on the stationary mechanical seal ring.
Preferably, a rotating ring sealing ring is arranged between the inner wall of the mechanical seal rotating ring and the output shaft.
The utility model provides a pair of pump class mechanical seal device has following beneficial effect at least:
The pump mechanical sealing device comprises a sealing box and a mechanical sealing assembly, wherein the mechanical sealing assembly is arranged in the sealing box, the sealing box is arranged on the inner wall of the pump body, and the sealing box can isolate water and the mechanical sealing assembly in the pump body, so that the mechanical sealing assembly can work independently, thereby reducing the loss of iron oxide scales in water on the mechanical sealing assembly and further prolonging the service life; the end part of the output shaft penetrates through the pump body and the sealing box in sequence, then is arranged in the pump cavity and is in transmission connection with the impeller, and the mechanical sealing assembly is sleeved on the output shaft; the utility model discloses a seal box can make mechanical seal subassembly work alone, reduces water and mechanical seal subassembly's contact to reduce the iron oxide scale wearing and tearing mechanical seal subassembly of aquatic, on the basis of guaranteeing work efficiency, effectively prolong life cycle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the installation state of the present invention;
Fig. 2 is a schematic structural diagram of the present invention.
Reference numerals
1. A sealing box; 11. a box body; 12. a mounting seat; 13. a water inlet pipe; 14. a water outlet pipe; 2. a mechanical seal assembly; 21. a mechanical seal stationary ring; 22. a mechanical seal movable ring; 23. an elastic member; 24. a moving ring sealing ring; 25. a stationary ring seal ring; 3. a pump body; 4. and an output shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a pump class mechanical seal device, as figure 1 the utility model discloses the installation state schematic diagram is shown, pump class mechanical seal device includes seal box 1 and mechanical seal subassembly 2, wherein: the mechanical seal assembly 2 is arranged in the seal box 1; the seal box 1 is arranged on the inner wall of the pump body 3, the end part of the output shaft 4 penetrates through the pump body 3 and the seal box 1 in sequence and then is arranged in the pump cavity and is connected with the impeller in a transmission way, and the mechanical seal assembly 2 is sleeved on the output shaft 4.
In the use, the inside water of the pump body 3 is kept apart to seal box 1, and mechanical seal subassembly 2 works alone in seal box 1 inside, the utility model discloses, effectively reduce water and mechanical seal subassembly 2's contact through seal box 1 to effectively reduce the wearing and tearing of the iron scale that contains in the aquatic to mechanical seal subassembly 2, and then on the basis of guaranteeing work efficiency, effectively prolong mechanical seal subassembly 2's life cycle, simple structure, the effect is showing.
As an optional implementation manner, as shown in fig. 2, the sealing box 1 of the present invention includes a box body 11 and a mounting seat 12, wherein: the mounting seat 12 is detachably arranged on the inner wall of the pump body 3, and the mounting seat 12 is mounted on the inner wall of the pump body 3 through a threaded fastener; the box body 11 is arranged on the mounting seat 12; the mechanical seal assembly 2 is arranged in the box body 11; the output shaft 4 sequentially penetrates through the pump body 3, the mounting seat 12 and the box body 11 and then is connected with the impeller in a transmission way; a first mounting hole is formed in the box body 11, a second mounting hole is formed in the mounting seat 12, a third mounting hole is formed in the pump body 3, and the output shaft 4 penetrates through the third mounting hole, the second mounting hole and the first mounting hole in sequence.
As an alternative embodiment, as shown in fig. 2, a water inlet pipe 13 and a water outlet pipe 14 are arranged on the seal box 1 in a communication manner, the water inlet pipe 13 and the water outlet pipe 14 penetrate through the pump body 3, and cooling water is guided into the seal box 1 from the water inlet pipe 13 and guided out from the water outlet pipe 14; adopt clear cooling water, pass through inlet tube 13 in proper order, seal box 1 and outlet pipe 14, on the one hand has the cooling action to mechanical seal subassembly 2, on the other hand receives the wearing and tearing back when seal box 1, and the concentration of iron scale in the cooling water can dilute water to reduce the wearing and tearing of iron scale to mechanical seal subassembly 2, can derive the water after partial iron scale dilutes through outlet pipe 14 simultaneously, reduce pressure, further reduce the loss, extension mechanical seal subassembly 2's life.
As an alternative embodiment, as shown in fig. 2, the mechanical seal assembly 2 includes a mechanical seal static ring 21 and a mechanical seal dynamic ring 22, wherein: the mechanical seal static ring 21 is fixedly arranged on the mounting seat 12, and the output shaft 4 penetrates through the mechanical seal static ring 21 and can rotate relative to the mechanical seal static ring 21; the mechanical seal rotating ring 22 is sleeved on the output shaft 4, and the mechanical seal rotating ring 22 and the output shaft 4 rotate synchronously; in the using process, the mechanical seal static ring 21 is static and motionless, the mechanical seal moving ring 22 and the output shaft 4 synchronously rotate, the mechanical seal static ring 21 and the mechanical seal moving ring 22 are tightly attached to form a sealing surface, water in the pump body 3 is effectively prevented from being leaked, and when the sealing surface is abraded, the mechanical seal moving ring 22 axially moves to perform automatic compensation.
As an alternative embodiment, as shown in fig. 2, the number of the mechanical seal static rings 21 is two, and the mechanical seal dynamic ring 22 is disposed between the two mechanical seal static rings 21; and one of the two mechanical seal static rings 21 is fixedly arranged in the first mounting hole, and the other two of the two mechanical seal static rings 21 is fixedly arranged in the second mounting hole and the third mounting hole.
As an alternative embodiment, as shown in fig. 2, the number of the mechanical seal rotating rings 22 is two, and two mechanical seal rotating rings 22 are disposed between two mechanical seal stationary rings 21.
As an alternative embodiment, as shown in fig. 2, an elastic member 23 is connected between the two mechanical seal rotating rings 22, the output shaft 4 passes through the elastic member 23, the elastic member 23 mainly plays a role of compensation and buffering, and the elastic member 23 generates a reasonable end face specific pressure on the mechanical seal end face, thereby ensuring the service life and the sealing performance of the mechanical seal assembly 2.
The elastic part 23 can be a corrugated pipe or a spring, a push ring is arranged between the two mechanical seal rotating rings 22, a mounting seat is arranged on the mechanical seal rotating ring 22, and two ends of the elastic part 23 are respectively arranged on the push ring and the mounting seat.
As an alternative embodiment, as shown in fig. 2, the elastic member 23 comprises at least two springs, all of which are connected and arranged between the two mechanical seal rotating rings 22, and all of which are arranged circumferentially with respect to the output shaft 4.
As an alternative embodiment, as shown in fig. 2, the mechanical seal stationary ring 21 is sleeved with two stationary seal rings 25, one of the stationary seal rings 25 is disposed in the first mounting hole, and the other is disposed in the second mounting hole and the third mounting hole, and the stationary seal ring 25 has a certain floatability to ensure a sealing effect.
As an alternative embodiment, as shown in fig. 2, a moving ring sealing ring 24 is disposed between the inner wall of the mechanical seal moving ring 22 and the output shaft 4, the number of the moving ring sealing rings 24 is two, and the two moving ring sealing rings 24 are respectively disposed on the inner wall of the corresponding mechanical seal moving ring 22, and the moving ring sealing ring 24 has a certain floating property, so as to ensure a sealing effect.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A mechanical seal device of the pump type, characterized by comprising a seal box (1) and a mechanical seal assembly (2), wherein:
The mechanical sealing assembly (2) is arranged in the sealing box (1);
The sealing box (1) is arranged on the inner wall of the pump body (3), the end part of the output shaft (4) sequentially penetrates through the pump body (3) and the sealing box (1) and then is arranged in the pump cavity and is connected with the impeller in a transmission mode, and the mechanical sealing assembly (2) is sleeved on the output shaft (4).
2. Pump-like mechanical seal according to claim 1, characterized in that said seal cartridge (1) comprises a cartridge body (11) and a mounting seat (12), wherein:
The mounting seat (12) is detachably arranged on the inner wall of the pump body (3);
The box body (11) is arranged on the mounting seat (12);
The mechanical sealing assembly (2) is arranged in the box body (11);
The output shaft (4) penetrates through the pump body (3), the mounting seat (12) and the box body (11) in sequence and then is connected with the impeller in a transmission mode.
3. The mechanical seal device for pump type according to claim 1, characterized in that the seal box (1) is provided with a water inlet pipe (13) and a water outlet pipe (14) in a communication manner, the water inlet pipe (13) and the water outlet pipe (14) penetrate through the pump body (3), and cooling water is introduced into the seal box (1) from the water inlet pipe (13) and is led out from the water outlet pipe (14).
4. The mechanical seal device of pump type as claimed in claim 2, characterized in that said mechanical seal assembly (2) comprises a mechanical seal static ring (21) and a mechanical seal dynamic ring (22), wherein:
The mechanical seal static ring (21) is fixedly arranged on the mounting seat (12), and the output shaft (4) penetrates through the mechanical seal static ring (21) and can rotate relative to the mechanical seal static ring (21);
The mechanical seal rotating ring (22) is sleeved on the output shaft (4), and the mechanical seal rotating ring (22) and the output shaft (4) rotate synchronously.
5. Pump type mechanical seal device according to claim 4, characterized in that the number of said mechanical seal static rings (21) is two, and said mechanical seal dynamic ring (22) is arranged between two said mechanical seal static rings (21).
6. Pump type mechanical seal device according to claim 5, characterized in that the number of said mechanical seal dynamic rings (22) is two, and both said mechanical seal dynamic rings (22) are arranged between two said mechanical seal static rings (21).
7. Pump type mechanical sealing device according to claim 6, characterized in that an elastic member (23) is connected between the two mechanical sealing moving rings (22), and the output shaft (4) passes through the elastic member (23).
8. Pump-like mechanical seal according to claim 7, characterized in that said elastic element (23) comprises at least two springs, all of which are arranged in a connection between two of said mechanical seal rotating rings (22), all of which are arranged circumferentially with respect to said output shaft (4).
9. The mechanical sealing device for the pump and the like according to claim 4, wherein the mechanical sealing static ring (21) is sleeved with a static ring sealing ring (25).
10. Pump type mechanical seal device according to claim 4, characterized in that a dynamic ring seal (24) is arranged between the inner wall of the mechanical seal dynamic ring (22) and the output shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097770.3U CN211116772U (en) | 2019-11-28 | 2019-11-28 | Mechanical sealing device for pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922097770.3U CN211116772U (en) | 2019-11-28 | 2019-11-28 | Mechanical sealing device for pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116772U true CN211116772U (en) | 2020-07-28 |
Family
ID=71700470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922097770.3U Active CN211116772U (en) | 2019-11-28 | 2019-11-28 | Mechanical sealing device for pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116772U (en) |
-
2019
- 2019-11-28 CN CN201922097770.3U patent/CN211116772U/en active Active
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