CN204804741U - Hollow sucker rod cable sealing device - Google Patents
Hollow sucker rod cable sealing device Download PDFInfo
- Publication number
- CN204804741U CN204804741U CN201520416182.0U CN201520416182U CN204804741U CN 204804741 U CN204804741 U CN 204804741U CN 201520416182 U CN201520416182 U CN 201520416182U CN 204804741 U CN204804741 U CN 204804741U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- cable
- hollow rod
- depression bar
- sealing element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 143
- 230000000694 effects Effects 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 abstract 1
- 241000283216 Phocidae Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 244000273618 Sphenoclea zeylanica Species 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides a hollow sucker rod cable sealing device, it includes: sealing drum and depression bar, wherein, the one end of sealing drum and hollow sucker rod sealing connection, the sealing drum is equipped with axial through's cable passage, and the cable passage is linked together with the inner chamber of hollow sucker rod, and the cable passage includes: be located first connecting portion, the second connecting portion of cable passage both sides and be located first connecting portion and the second connecting portion between middle holding portion, elastic sealing element is equipped with in middle holding portion content, one side of elastic sealing element is supported and is ended the tip that is close to hollow sucker rod in middle holding portion, the depression bar has axial through's cable through -hole, and the other end of a depression bar self sealss section of thick bamboo is warp and the hermetically -sealed cable passageway to under the pressure effect at pressure shaft by first connecting portion insertion cable passageway and roof pressure in elastic sealing element's opposite side, elastic sealing element. The utility model provides an it is reliable that hollow sucker rod cable sealing device has an easy operation, sealed effectual, advantages such as long service life.
Description
Technical field
The utility model relates to Work piece sealing device technique field, particularly a kind of hollow rod cable sealing device.
Background technology
At present, in order to reduce viscosity of crude, improve its mobility, thus crude oil extraction effectively, be typically employed in hollow rod endoporus and penetrate cable and form loop with hollow rod body, pass to the alternating current of different frequency, in utilizing, kelvin effect produces heat energy on hollow stem wall, pass through heat transfer, whole process heating is carried out to crude oil in oil pipe, but, in actual production process, often there is the problem of underground hollow sucker rod leakage of oil, well liquid is slowly flowed out by hollow rod upper end, owing to having heating cable in hollow rod, sealing cannot be implemented when leakage of oil, if examine bar not in time, well site then can be caused to pollute, also the later stage can be caused to play cable difficulty simultaneously, put off the problems such as cable.
Utility model content
The purpose of this utility model be to provide a kind of can the hollow rod cable sealing device of effective sealing hollow rod.
For achieving the above object, the utility model provides a kind of hollow rod cable sealing device, it comprises: sealing drum, its one end and hollow rod are tightly connected, described sealing drum is provided with axially through cable passage, the intracavity inter-connection of described cable passage and described hollow rod, described cable passage comprises: the first connecting portion being positioned at described cable passage both sides, second connecting portion and the middle holding part between described first connecting portion and described second connecting portion, in described middle holding part content, elastic sealing element is housed, the side of described elastic sealing element is to terminating in described middle holding part near the end of described hollow rod, depression bar, it has axially through cable through-hole, described depression bar inserts described cable passage from the other end of described sealing drum by described first connecting portion and is also pressed on the opposite side of described elastic sealing element in top, and described elastic sealing element is out of shape and seals described cable passage under the effect of described depression bar axial compression.
Hollow rod cable sealing device as above, wherein, described middle holding part is by the frustum-like shape of described first connecting portion to the radial convergent of described second connecting portion.
Hollow rod cable sealing device as above, wherein, described middle holding part is that step is poroid, and described middle holding part is connected with described second connecting portion, the radial dimension located is greater than its radial dimension located that is connected with described second connecting portion, and the side of described elastic sealing element is on the step surface terminating in described stepped hole.
Hollow rod cable sealing device as above, wherein, described middle holding part has the annular block reinforcement of radially convex with the described first connecting portion place of being connected, and the side of described elastic sealing element is to terminating in described annular block reinforcement.
Hollow rod cable sealing device as above, wherein, described depression bar is provided with external screw thread, and described first connecting portion is provided with the internal thread matched with described external screw thread, and described depression bar screws in described first connecting portion and pushes up the opposite side being pressed on described elastic sealing element.
Hollow rod cable sealing device as above, wherein, the end that described depression bar exposes to described sealing drum is provided with the annular groove that cross section is regular polygon.
Hollow rod cable sealing device as above, wherein, the end that described depression bar exposes to described sealing drum is provided with rotary handle, and by rotating described rotary handle, described depression bar screws in described first connecting portion and pushes up the opposite side being pressed on described elastic sealing element.
Hollow rod cable sealing device as above, wherein, described elastic sealing element is the rubber seal suitable with the shape and size of described middle holding part.
Hollow rod cable sealing device as above, wherein, described second connecting portion and described hollow rod seal and spin.
Hollow rod cable sealing device as above, wherein, the external diameter of described sealing drum is equal with the external diameter of described hollow rod.
Compared with prior art, advantage of the present utility model is as follows:
The hollow rod cable sealing device that the utility model provides, the cable passage being screwed in sealing drum by depression bar gradually extrudes the elastic sealing element being positioned at middle holding part, elastic sealing element is out of shape under the effect of depression bar axial compression and hermetically-sealed cable passage, namely the cable being positioned at middle holding part place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod, ensure that the cleannes on well head and ground, and the hollow rod cable sealing device that the utility model provides to have seal operation simple and convenient, good sealing effect, the advantages such as long service life.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the hollow rod cable sealing device provided according to the utility model one embodiment;
Fig. 2 is the structural representation of sealing drum in the hollow rod cable sealing device shown in Fig. 1;
Fig. 3 is the structural representation of the hollow rod cable sealing device provided according to another embodiment of the utility model;
Fig. 4 is the structural representation of the hollow rod cable sealing device provided according to the another embodiment of the utility model.
Drawing reference numeral illustrates:
1-sealing drum; 11-cable passage; 111-first connecting portion; Holding part in the middle of 112-; 1121-annular block reinforcement; 113-second connecting portion; 2-elastic sealing element; 3-depression bar, 31-cable through-hole; 32-annular groove; 4-hollow rod; 41-inner chamber; 5-cable.
Detailed description of the invention
In order to have clearer understanding to the technical solution of the utility model, object and effect, existing accompanying drawings detailed description of the invention of the present utility model.
As Fig. 1, shown in Fig. 3 and Fig. 4, the utility model provides a kind of hollow rod cable sealing device, it comprises: sealing drum 1 and depression bar 3, wherein, one end and the hollow rod 4 of sealing drum 1 are tightly connected, sealing drum 1 is provided with axially through cable passage 11, cable passage 11 is connected with the inner chamber 41 of hollow rod 4, cable passage 11 comprises: the first connecting portion 111 being positioned at cable passage 11 both sides, second connecting portion 113 and the middle holding part 112 between the first connecting portion 111 and the second connecting portion 113, in middle holding part 112 content, elastic sealing element 2 is housed, the side of elastic sealing element 2 is to terminating in middle holding part 112 near the end of hollow rod 4, depression bar 3 has axially through cable through-hole 31, the other end of depression bar 3 self-sealing cylinder 1 inserts cable passage 11 by the first connecting portion 111 and pushes up the opposite side being pressed on elastic sealing element 2, cable 5 runs through cable through-hole 31, the inner chamber 41 of elastic sealing element 2 and hollow rod 4 gos deep into shaft bottom, cable passage 11 is stretched into gradually by depression bar 3, elastic sealing element 2 is out of shape and hermetically-sealed cable passage 11 under the effect of depression bar 3 axial compression, namely the cable 5 being positioned at middle holding part 112 place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod 4, ensure that the cleannes on well head and ground, and the hollow rod cable sealing device that the utility model provides to have seal operation simple and convenient, good sealing effect, the advantages such as long service life.
In a concrete example of the present utility model, as depicted in figs. 1 and 2, middle holding part 112 is by the frustum-like shape of the first connecting portion 111 to the radial convergent of the second connecting portion 113, namely in the middle of, the cross sectional area of holding part 112 reduces to itself and the second connecting portion 113 connection gradually from itself and the first connecting portion 111 connection, when depression bar 3 stretches into cable passage 11 gradually, because the cross sectional area of middle holding part 112 and the second connecting portion 113 connection limits elastic sealing element 2 towards hollow rod 4 one-movement-freedom-degree, middle holding part 112 simultaneously in frustum-like shape can make elastic sealing element 2 draw close to cable 5 gradually, along with depression bar 3 continues to stretch into the opposite side that cable passage 11 extrudes elastic sealing element 2, elastic sealing element 2 is out of shape and hermetically-sealed cable passage 11 under the effect of depression bar 3 axial compression, namely the cable 5 being positioned at middle holding part 112 place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod 4, ensure that the cleannes on well head and ground.
In another concrete example of the present utility model, as shown in Figure 3, middle holding part 112 is poroid in step, and middle holding part 112 is connected with the first connecting portion 111, the radial dimension located is greater than its radial dimension located that is connected with the second connecting portion 113, the side of elastic sealing element 2 is on the step surface terminating in stepped hole, when depression bar 3 stretches into cable passage 11 gradually, step surface limits elastic sealing element 2 towards hollow rod 4 one-movement-freedom-degree, along with depression bar 3 continues to stretch into the opposite side that cable passage 11 extrudes elastic sealing element 2, elastic sealing element 2 is out of shape and hermetically-sealed cable passage 11 under the effect of depression bar 3 axial compression, namely the cable 5 being positioned at middle holding part 112 place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod 4, ensure that the cleannes on well head and ground.
In another concrete example of the present utility model, as shown in Figure 4, middle holding part 112 and the second connecting portion 113 place of being connected have the annular block reinforcement 1121 of radially convex, the side of elastic sealing element 2 is to terminating in annular block reinforcement 1121, when depression bar 3 stretches into cable passage 11 gradually, annular block reinforcement 1121 limits elastic sealing element 2 towards hollow rod 4 one-movement-freedom-degree, along with depression bar 3 continues to stretch into the opposite side that cable passage 11 extrudes elastic sealing element 2, elastic sealing element 2 is out of shape and hermetically-sealed cable passage 11 under the effect of depression bar 3 axial compression, namely the cable 5 being positioned at middle holding part 112 place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod 4, ensure that the cleannes on well head and ground.
Alternatively, elastic sealing element 2 is the rubber seal suitable with the shape and size of middle holding part 112, if that is: middle holding part 112 is in frustum-like shape, then rubber seal is also in the frustum-like shape suitable with middle holding part 112 size; If middle holding part 112 is in cylindric, then rubber seal is also in suitable cylindric with middle holding part 112 size; If middle holding part 112 is in prism-shaped, then rubber seal is also and the suitable prism-shaped of middle holding part 112 size, like this, make elastic sealing element 2 can enter middle holding part 112 smoothly and be placed in middle holding part 112 on the one hand, on the other hand, elastic sealing element 2 can be fitted with the intimate surface of middle holding part 112 under the horizontal force of depression bar 3, thus ensure that the sealing effectiveness of hollow rod cable sealing device.
Alternatively, second connecting portion 113 seals with hollow rod 4 and spins, namely the second connecting portion adopts with hollow rod 4 and is threaded, be threaded simple and convenient, thus make the connection between sealing drum 1 and hollow rod 4 simple and convenient, even if the installation obtaining hollow rod cable sealing device is simple and convenient.
Alternatively, the external diameter of sealing drum 1 is equal with the external diameter of hollow rod 4, namely sealing drum and hollow rod isometrical, thus be convenient to the installation of hollow rod cable sealing device.
Alternatively, depression bar 3 is provided with external screw thread, first connecting portion 111 is provided with the internal thread matched with external screw thread, depression bar 3 screws in the first connecting portion 111 and pushes up the opposite side being pressed on elastic sealing element 2, be threaded simple and reliable, and effectively can ensure that depression bar 3 can not depart from sealing drum 1 under the elastic force effect of elastic sealing element 2, thus effectively ensure that the sealing effectiveness of hollow rod cable sealing device.
Further, the end that depression bar 3 exposes to sealing drum 1 is provided with the annular groove 32 that cross section is regular polygon, annular groove 32 can with the instruments such as spanner with the use of, thus depression bar 3 can easier be screwed in sealing drum 1 by operating personnel.
Or, the simple to operation of sealing drum 1 is screwed in order to make depression bar 3, time saving and energy saving, the end exposing to sealing drum 1 at depression bar 3 is provided with rotary handle, by rotating rotary handle, depression bar 3 screws in the first connecting portion 111 and top is pressed on the opposite side of elastic sealing element 2, thus depression bar 3 can easier be screwed in sealing drum 1 by operating personnel.
Below for the hollow rod cable sealing device shown in Fig. 1, illustrate the assembling process of the hollow rod cable sealing device that the utility model provides:
As depicted in figs. 1 and 2, first the second connecting portion 113 is spun with the bar upper end of hollow rod 4, link into an integrated entity by sealing drum 1 and hollow rod 4, again one end of cable 5 is stretched in well through the cable passage 11 of sealing drum 1 and the inner chamber 41 of hollow stem sucker rod 4, when cable 5 times on earth after, by the other end of cable 5 through rubber seal (elastic sealing element 2), and make rubber seal be placed in the middle holding part 112 of sealing drum 1, finally the other end of cable 5 is passed depression bar 3, spanner is utilized to screw in sealing drum 1 by depression bar 3 from the first connecting portion 111, compress the rubber seal being positioned at middle holding part 112 gradually, because middle holding part 112 is by the frustum-like shape of the first connecting portion 111 to the radial convergent of the second connecting portion 113, namely in the middle of, the cross sectional area of holding part 112 is reduced to itself and the second connecting portion 113 connection gradually by itself and the first connecting portion 111 connection, when depression bar 3 stretches into cable passage 11 gradually, because the cross sectional area of middle holding part 112 and the second connecting portion 113 connection limits elastic sealing element 2 towards hollow rod 4 one-movement-freedom-degree, middle holding part 112 simultaneously in frustum-like shape can make elastic sealing element 2 draw close to cable 5 gradually, along with depression bar 3 continues to stretch into the opposite side that cable passage 11 extrudes elastic sealing element 2, elastic sealing element 2 is out of shape and hermetically-sealed cable passage 11 under the effect of depression bar 3 axial compression, namely the cable 5 being positioned at middle holding part 112 place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod 4, ensure that the cleannes on well head and ground.
In sum, the hollow rod cable sealing device that the utility model provides, the cable passage being screwed in sealing drum by depression bar gradually extrudes the elastic sealing element being positioned at middle holding part, elastic sealing element is out of shape under the effect of depression bar axial compression and hermetically-sealed cable passage, namely the cable being positioned at middle holding part place is sealed, thus avoid liquid ejection pollution well head and ground in hollow rod, ensure that the cleannes on well head and ground, and the hollow rod cable sealing device that the utility model provides to have seal operation simple and convenient, good sealing effect, the advantages such as long service life.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those of ordinary skill in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (10)
1. a hollow rod cable sealing device, is characterized in that, described hollow rod cable sealing device comprises:
Sealing drum, its one end and hollow rod are tightly connected, described sealing drum is provided with axially through cable passage, the intracavity inter-connection of described cable passage and described hollow rod, described cable passage comprises: the first connecting portion in described cable passage both sides, the second connecting portion and the middle holding part between described first connecting portion and described second connecting portion, in described middle holding part content, elastic sealing element is housed, the side of described elastic sealing element is to terminating in described middle holding part near the end of described hollow rod;
Depression bar, it has axially through cable through-hole, described depression bar inserts described cable passage from the other end of described sealing drum by described first connecting portion and is also pressed on the opposite side of described elastic sealing element in top, and described elastic sealing element is out of shape and seals described cable passage under the effect of described depression bar axial compression.
2. hollow rod cable sealing device according to claim 1, is characterized in that,
Described middle holding part is by the frustum-like shape of described first connecting portion to the radial convergent of described second connecting portion.
3. hollow rod cable sealing device according to claim 1, is characterized in that,
Described middle holding part is that step is poroid, and described middle holding part is connected with described first connecting portion, the radial dimension located is greater than its radial dimension located that is connected with described second connecting portion, and the side of described elastic sealing element is on the step surface terminating in described stepped hole.
4. hollow rod cable sealing device according to claim 1, is characterized in that,
Described middle holding part has the annular block reinforcement of radially convex with the described second connecting portion place of being connected, and the side of described elastic sealing element is to terminating in described annular block reinforcement.
5. hollow rod cable sealing device according to claim 1, is characterized in that,
Described depression bar is provided with external screw thread, and described first connecting portion is provided with the internal thread matched with described external screw thread, and described depression bar screws in described first connecting portion and pushes up the opposite side being pressed on described elastic sealing element.
6. hollow rod cable sealing device according to claim 5, is characterized in that,
The end that described depression bar exposes to described sealing drum is provided with the annular groove that cross section is regular polygon.
7. hollow rod cable sealing device according to claim 5, is characterized in that,
The end that described depression bar exposes to described sealing drum is provided with rotary handle, and by rotating described rotary handle, described depression bar screws in described first connecting portion and pushes up the opposite side being pressed on described elastic sealing element.
8. hollow rod cable sealing device according to any one of claim 1 to 7, is characterized in that, described elastic sealing element is the rubber seal suitable with the shape and size of described middle holding part.
9. hollow rod cable sealing device according to any one of claim 1 to 7, is characterized in that, described second connecting portion and described hollow rod seal and spin.
10. hollow rod cable sealing device according to any one of claim 1 to 7, is characterized in that, the external diameter of described sealing drum is equal with the external diameter of described hollow rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416182.0U CN204804741U (en) | 2015-06-16 | 2015-06-16 | Hollow sucker rod cable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416182.0U CN204804741U (en) | 2015-06-16 | 2015-06-16 | Hollow sucker rod cable sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204804741U true CN204804741U (en) | 2015-11-25 |
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ID=54589583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416182.0U Expired - Fee Related CN204804741U (en) | 2015-06-16 | 2015-06-16 | Hollow sucker rod cable sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204804741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333057A (en) * | 2019-07-02 | 2019-10-15 | 合肥海川石化设备有限公司 | A kind of deep well submerged electric pump motor water pressure test tank |
| CN110473677A (en) * | 2019-08-21 | 2019-11-19 | 江苏神马电力股份有限公司 | A kind of Hollow Pillar insulator |
| CN112780211A (en) * | 2019-11-07 | 2021-05-11 | 中国石油天然气股份有限公司 | Sealing device for optical fiber well temperature monitoring well head of production well |
-
2015
- 2015-06-16 CN CN201520416182.0U patent/CN204804741U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333057A (en) * | 2019-07-02 | 2019-10-15 | 合肥海川石化设备有限公司 | A kind of deep well submerged electric pump motor water pressure test tank |
| CN110473677A (en) * | 2019-08-21 | 2019-11-19 | 江苏神马电力股份有限公司 | A kind of Hollow Pillar insulator |
| CN112780211A (en) * | 2019-11-07 | 2021-05-11 | 中国石油天然气股份有限公司 | Sealing device for optical fiber well temperature monitoring well head of production well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |