CN211851744U - Packing box gland and packing box - Google Patents

Abstract

The utility model discloses a packing box gland and packing box belongs to the oil development field. This packing box gland (00) includes: the gland comprises a gland body (10), a sleeve (20), a pressure plate assembly (30), a first box body (40) and a second box body (50). Because the corrosion inhibition medicament is contained in the first box body (40), and the first box body (40) is communicated with the sleeve (20), the corrosion inhibition medicament in the first box body (40) can flow into the sleeve (20), so that the corrosion inhibition medicament is contacted with the polished rod (01) in the oil pumping unit, the corrosion inhibition medicament can effectively slow down the corrosion of the polished rod (01) in the oil pumping unit, and the service life of the polished rod (01) is prolonged; meanwhile, lubricating oil is contained in the second box body (50), so that the lubricating oil in the second box body (50) can also flow into the sleeve (20), the surface of the polish rod (01) is not easy to damage, and the service life of the polish rod (01) is prolonged.

Description

Packing box gland and packing box

Technical Field

The utility model relates to an oil development field, in particular to packing box gland and packing box.

Background

The packing box is a device for sealing a polished rod in the oil pumping unit by using a packing inside the packing box, and plays a role in sealing an annular space between an oil pipe and the polished rod in the oil pumping unit in the oil well exploitation process.

In the related art, the packing box may include: packing, packing box body and set up in the packing box gland of packing box body top, the inside of this packing box body has a sealed chamber, and this sealed chamber is filled has sealing filler for realize the sealed effect of packing box.

At present, lubricating oil can be injected into the packing box usually in the use process of the packing box, so that the situation that the probability that the polish rod is damaged is high due to the fact that the friction force between the gland of the packing box and the polish rod in the pumping unit is high is prevented. However, the function of the packing box is single at present.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a packing box gland and packing box. The problem that the function of prior art packing box is comparatively single can be solved, technical scheme is as follows:

in a first aspect, there is provided a packing box gland comprising:

a gland body;

one end of the sleeve is connected with the gland body;

the pressing plate assembly is connected with one end of the sleeve, which is far away from the gland body;

and the first box body and the second box body are fixedly connected with the side wall of the sleeve and are communicated with the sleeve, wherein the first box body is configured to contain liquid corrosion inhibition medicament, and the second box body is configured to contain lubricating oil.

Optionally, the first box includes: the first box body and the first connecting pipe, the first end of the first connecting pipe with the terminal surface fixed connection of the first end of the first box body and with the first box body intercommunication, the second end of the first connecting pipe with telescopic lateral wall fixed connection and with the sleeve intercommunication.

Optionally, the first box further includes: and the box body end cover is detachably connected with the second end of the first box body.

Optionally, the first box body is provided with a plurality of connecting rods fixedly connected with the end face of the first end of the first box body, the connecting rods are all located in the first box body, the length directions of the connecting rods are all parallel to the height direction of the first box body, and the length of each connecting rod is greater than the height of the first box body;

the box body end cover is provided with a plurality of connecting holes which are in one-to-one corresponding sleeved connection with the connecting rods.

Optionally, the first box further includes: the first end of the second connecting pipe is fixedly connected with the end face of the second end of the first box body and communicated with the first box body, and the end face of the second end of the second connecting pipe is provided with an opening.

Optionally, an opening of an end surface of the second end of the second connection pipe faces the second end of the first box body, and is parallel to the end surface of the second end of the first box body.

Optionally, the platen assembly includes: the gland comprises a first pressing plate and a second pressing plate which are circular plate-shaped, wherein the diameter of the first pressing plate is smaller than that of the second pressing plate, and the first pressing plate is close to the gland body relative to the second pressing plate;

one end of the sleeve, which is far away from the gland body, is provided with a first step structure connected with the first pressing plate and a second step structure connected with the second pressing plate.

Optionally, the sleeve further has a first space between the first pressure plate and the gland body, and a second space between the first pressure plate and the second pressure plate;

the first box body is communicated with the first space, and the second box body is communicated with the second space.

Optionally, the platen assembly further includes: the first sealing sheet is positioned between the first pressure plate and the first step structure, and the second sealing sheet is positioned between the second pressure plate and the second step structure.

In a second aspect, a packing kit is provided, including: the packing box body, with this body coupling's of packing box gland, and be located this internal packing of packing box, the packing box gland is arbitrary for the first aspect the packing box gland.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is:

this packing box gland includes: gland body, sleeve, clamp plate subassembly, first box body and second box body. Because the first box body is internally provided with the liquid corrosion inhibition agent and is communicated with the sleeve, the corrosion inhibition agent in the first box body can flow into the sleeve, so that the corrosion inhibition agent is contacted with the polished rod in the oil pumping unit, the corrosion inhibition agent can effectively slow down the corrosion of the polished rod in the oil pumping unit, and the service life of the polished rod is prolonged; simultaneously, the second box body is held with lubricating oil, and the second box body also communicates with the sleeve, consequently, lubricating oil in the second box body also can flow into in the sleeve for lubricating oil and the polished rod contact in the beam-pumping unit, this lubricating oil can effectually reduce the frictional force between polished rod and the packing box gland, thereby makes the polished rod surface be difficult for being damaged, and then has prolonged the life of polished rod. When this packing box gland is installed in the packing box, the effectual function of enriching the packing box.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a packing box gland provided by an embodiment of the present invention in a use situation;

fig. 2 is a schematic view of another packing box gland provided in the embodiment of the present invention in a scene when in use;

fig. 3 is a schematic structural diagram of a first pressing plate according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second pressing plate according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of a sleeve according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

An embodiment of the utility model provides a packing box gland, this packing box gland are arranged in slowing down the corruption of the polished rod in the beam-pumping unit. Referring to fig. 1, fig. 1 is a schematic view of a scenario of a packing box gland when in use according to an embodiment of the present invention. When packing box gland 00 uses, this packing box gland 00 can cup joint outside polished rod 01, and this packing box gland 00 can include: the gland body 10, the sleeve 20, the pressure plate assembly 30, the first cartridge 40 and the second cartridge 50.

The gland body 10 is connected to one end of the sleeve 20.

The platen assembly 30 is coupled to an end of the sleeve 20 remote from the gland body 10.

The first box 40 and the second box 50 are both fixedly connected to the sidewall of the sleeve 20 and are in communication with the sleeve 20, wherein the first box 40 is configured to contain a liquid corrosion inhibitor, and the second box 50 is configured to contain a lubricant. Illustratively, the corrosion inhibitor can be a mixture which can be composed of acetylene oxygen methyl ammonia, imidazole derivative, emulsifying dispersant and water, wherein the content of the acetylene oxygen methyl ammonia is 10-15%; the content of the imidazole derivative is 30 to 45 percent; the content of the emulsifying dispersant is 5 to 10 percent; the water content is 30% to 50%. The lubricating oil may be a butter.

When the packing box gland shown in fig. 1 needs to be used, firstly, an operator needs to install the packing box gland 00 on the packing box body; then, the operator can pour the liquid corrosion inhibitor into the first box body 40 in the gland 00 of the packing box; then, the operator can pour the lubricating oil into the second box 50 in the packing box gland 00; finally, the operator can start the pumping unit to make the polish rod 01 reciprocate up and down relative to the gland 00 of the packing box.

To sum up, the embodiment of the utility model provides a packing box gland, include: gland body, sleeve, clamp plate subassembly, first box body and second box body. Because the first box body is internally provided with the liquid corrosion inhibition agent and is communicated with the sleeve, the corrosion inhibition agent in the first box body can flow into the sleeve, so that the corrosion inhibition agent is contacted with the polished rod in the oil pumping unit, the corrosion inhibition agent can effectively slow down the corrosion of the polished rod in the oil pumping unit, and the service life of the polished rod is prolonged; simultaneously, the second box body is held with lubricating oil, and the second box body also communicates with the sleeve, consequently, lubricating oil in the second box body also can flow into in the sleeve for lubricating oil and the polished rod contact in the beam-pumping unit, this lubricating oil can effectually reduce the frictional force between polished rod and the packing box gland, thereby makes the polished rod surface be difficult for being damaged, and then has prolonged the life of polished rod. When this packing box gland is installed in the packing box, the effectual function of enriching the packing box.

In the embodiment of the present invention, referring to fig. 2, fig. 2 is a schematic view of another kind of packing box gland when in use provided by the embodiment of the present invention. The first case 40 may include: the cartridge comprises a first cartridge body 401 and a first connecting pipe 402, a first end of the first connecting pipe 402 is fixedly connected with an end face of a first end of the first cartridge body 401 and communicated with the first cartridge body 401, and a second end of the first connecting pipe 402 is fixedly connected with a side wall of the sleeve 20 and communicated with the sleeve 20. Illustratively, the first connection pipe 402 has an L-shaped extension, so that when a liquid corrosion inhibitor is poured into the first box body 401, the corrosion inhibitor can flow into the sleeve 20 through the first connection pipe 402, so that the corrosion inhibitor contacts with the surface of the polish rod 01 in the sleeve 20, thereby reducing corrosion of the polish rod 01.

Alternatively, referring to fig. 2, the first container 40 may further include: and a box end cover 403, where the box end cover 403 is detachably connected to the second end of the first box body 401, and when the box end cover is connected to the second end of the first box body 401, the box end cover is fastened to the second end of the first box body 401 to seal the first box body 401. Thus, when the corrosion inhibitor needs to be added, the box end cover 403 is opened, the corrosion inhibitor to be added is poured into the first box body 401, and then the box end cover 403 is closed, so that the addition of the corrosion inhibitor is completed.

In the embodiment of the present invention, referring to fig. 2, the first box body 401 has a plurality of connecting rods 401a fixedly connected to the end surface of the first end of the first box body 401, and the plurality of connecting rods 401a are all located in the first box body 401, the length directions of the plurality of connecting rods 401a are all parallel to the height direction (i.e. thickness direction) of the first box body 401, and the length of each connecting rod 401a is greater than the height of the first box body 401. The box end cap 403 has a plurality of connection holes (not shown in fig. 2) that are sleeved with the plurality of connection rods 401a in a one-to-one correspondence. For example, the plurality of connecting rods 401a may be two connecting rods 401a, that is, the plurality of connecting holes may also be two connecting holes. These two connecting rods 401a cup joint with two connecting holes one-to-one to improve the fastness when box body end cover 403 is connected with first box body 401, also make things convenient for the separation of box body end cover 403 and first box body 401 simultaneously.

Alternatively, referring to fig. 2, the first container 40 may further include: a second connection pipe 404, a first end of the second connection pipe 404 is fixedly connected with an end surface of the second end of the first case body 401 and is communicated with the first case body 401, and an end surface of the second end of the second connection pipe 404 has an opening. Because the polished rod 01 always reciprocates up and down relative to the packing box gland 00, the heat generated by friction in the up-and-down reciprocating motion can cause the temperature in the packing box gland 00 to be higher, so that the second connecting pipe 404 communicated with the outside can reduce the temperature in the packing box gland 00, and the corrosion inhibiting agent has a better corrosion preventing effect.

In the embodiment of the present invention, referring to fig. 2, the opening of the end surface of the second end of the second connecting pipe 404 faces the second end of the first box body 401, and is parallel to the end surface of the second end of the first box body 401. That is, the end surface of the second end of the second connection pipe 404 is opened toward the ground. In rainy or snowy weather, it is possible to effectively prevent rain or snow from entering the first case body 401 through the second connection pipe 404. For example, the second connection pipe 404 may include: a straight pipe 404a with one end fixedly connected with the box end cover 403, and a U-shaped pipe 404b with one end fixedly connected with the other end of the straight pipe 404a, wherein the opening of the end surface of the other end of the U-shaped pipe 404b faces the box end cover 403 and is parallel to the end surface of the box end cover 403.

Optionally, referring to fig. 2, fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a first pressing plate provided in an embodiment of the present invention, and fig. 4 is a schematic structural diagram of a second pressing plate provided in an embodiment of the present invention. Illustratively, the first platen 301 and the second platen 302 are the same shape and different sizes. The platen assembly 30 may include: a first presser plate 301 and a second presser plate 302 of circular plate shapes, the diameter of the first presser plate 301 being smaller than that of the second presser plate 302, the first presser plate 301 being close to the gland body 10 with respect to the second presser plate 302. Referring to fig. 5, fig. 5 is a cross-sectional view of a sleeve according to an embodiment of the present invention. The end of the sleeve 20 remote from the gland body 10 has a first step structure 201 connected to a first pressure plate 301 and a second step structure 202 connected to a second pressure plate 302. The shape and the size of the first step structure 201 are matched with those of the first pressure plate 301, the shape and the size of the second step structure 202 are also matched with those of the second pressure plate 302, wherein the ratio of the distance from the first step structure 201 to one end, far away from the gland body 10, of the sleeve 20 to the height of the sleeve 20 is 1: 3; the ratio of the distance from the second step structure 202 to the end of the sleeve 20 away from the gland body 10 to the height of the sleeve 20 is 1: 5.

It should be noted that the first pressing plate 301 has a plurality of first threaded holes 301a, and the plurality of first threaded holes 301a are uniformly distributed around the axial line of the first pressing plate 301; the second pressure plate 302 is provided with a plurality of second threaded holes 302a, and the plurality of second threaded holes 302a are uniformly distributed around the axis line of the second pressure plate 302; the first stepped structure 201 is provided with a plurality of third threaded holes 201a, and the plurality of third threaded holes 201a are uniformly distributed around the axial line of the shape surrounded by the first stepped structure 201; the second stepped structure 202 has a plurality of fourth threaded holes 202a, and the plurality of fourth threaded holes 202a are uniformly distributed around the axial center line of the shape surrounded by the second stepped structure 202. The first threaded holes 301a correspond to the third threaded holes 201a one to one, and the second threaded holes 302a correspond to the fourth threaded holes 202a one to one. The platen assembly 30 may further include: a plurality of first screws 303 and a plurality of second screws 304, the plurality of first screws 303 corresponding to the plurality of first screw holes 301a one to one, and the plurality of second screws 304 corresponding to the plurality of second screw holes 302a one to one. When the first pressure plate 301 and the first stepped structure 201 need to be connected, each first screw 303 only needs to sequentially pass through the first threaded hole 301a on the first pressure plate 301 and the third threaded hole 201a on the first stepped structure 201. When the second pressure plate 302 and the second stepped structure 202 need to be connected, each second screw 304 only needs to sequentially pass through the second threaded hole 302a on the second pressure plate 302 and the fourth threaded hole 202a on the second stepped structure 202.

In the embodiment of the present invention, referring to fig. 2, the sleeve 20 further has a first space 20 between the first pressing plate 301 and the gland body 10, and a second space 204 between the first pressing plate 301 and the second pressing plate 302. The first container 40 communicates with the first space 203, and the second container 50 communicates with the second space 204. Therefore, the corrosion inhibition medicament in the first box body 40 can flow into the first space 203, the lubricating oil in the second box body 50 can flow into the second space 204, the surface of the polished rod 01 in the first space 203 can be soaked in the corrosion inhibition medicament in the first space 203, so that the effect of slowing down the corrosion of the surface of the polished rod 01 is achieved, the lubricating oil flowing into the second space 204 can lubricate the surface of the polished rod 01, which is in contact with the first pressing plate 301, and can lubricate the surface of the polished rod 01, which is in contact with the second pressing plate 302, so that the surface of the polished rod 01 is not easily damaged, and the service life of the polished rod 01 is prolonged.

Alternatively, referring to fig. 2, the platen assembly 30 may further include: a first sealing fin 305 located between the first pressure plate 301 and the first step structure 201, and a second sealing fin 306 located between the second pressure plate 302 and the second step structure 202. For example, the material of the first sealing piece 305 and the second sealing piece 306 may be silicone. The first sealing sheet 305 can improve the tightness between the first space 203 and the second space 204, and the second sealing sheet 306 can improve the tightness between the pressure plate assembly 30 and the outside, so as to improve the tightness of the packing box gland 00.

It should be noted that, referring to fig. 2, fig. 3 and fig. 4, the first pressure plate 301 and the second pressure plate 302 may have a circular truncated cone structure, and thus, both the first sealing fin 305 and the second sealing fin 306 may have a circular ring structure, and after the first sealing fin 305 of the circular ring structure is sleeved on the boss of the first pressure plate 301, the first pressure plate 301 is connected to the first stepped structure 201, so that the first sealing fin 305 is fixed between the first pressure plate 301 and the first stepped structure 201 under the action of the first pressure plate 301 and the first stepped structure 201. The second sealing sheet 306 of the circular ring structure may be sleeved on the boss of the second pressure plate 302, and then the second pressure plate 302 is connected to the second stepped structure 202, so that the second sealing sheet 306 is fixed between the second pressure plate 302 and the second stepped structure 202 under the action of the second pressure plate 302 and the second stepped structure 202.

It should be noted that, in the packing gland 00 shown in fig. 1 and fig. 2, the opening on the side wall of the sleeve 20 is for more clearly seeing the internal structure of the sleeve 20, the opening on the side wall of the first box body 401 is for more clearly seeing the internal structure of the first box body 401, and in actual use, no opening is provided on the side walls of the sleeve 20 and the first box body 401.

To sum up, the embodiment of the utility model provides a packing box gland, include: gland body, sleeve, clamp plate subassembly, first box body and second box body. Because the first box body is internally provided with the liquid corrosion inhibition agent and is communicated with the sleeve, the corrosion inhibition agent in the first box body can flow into the sleeve, so that the corrosion inhibition agent is contacted with the polished rod in the oil pumping unit, the corrosion inhibition agent can effectively slow down the corrosion of the polished rod in the oil pumping unit, and the service life of the polished rod is prolonged; simultaneously, the second box body is held with lubricating oil, and the second box body also communicates with the sleeve, consequently, lubricating oil in the second box body also can flow into in the sleeve for lubricating oil and the polished rod contact in the beam-pumping unit, this lubricating oil can effectually reduce the frictional force between polished rod and the packing box gland, thereby makes the polished rod surface be difficult for being damaged, and then has prolonged the life of polished rod. When this packing box gland is installed in the packing box, the effectual function of enriching the packing box.

The embodiment of the utility model provides a still provide a packing box, this packing box can include: the packing box comprises a packing box body, a packing box gland connected with the packing box body, and a packing positioned in the packing box body, wherein the packing box gland can be the packing box gland 00 shown in figure 1 or figure 2.

When the packing box needs to be installed in the oil pumping unit, firstly, an operator needs to put the packing into the packing box body and install the packing box gland on the packing box body; then, an operator can pour the liquid corrosion inhibition agent into the first box body in the gland of the packing box; then, an operator can pour lubricating oil into the second box body in the gland of the packing box; finally, the operator can start the pumping unit to make the polish rod reciprocate up and down relative to the packing box.

To sum up, the embodiment of the utility model provides a packing box, the packing box gland in this packing box includes: gland body, sleeve, clamp plate subassembly, first box body and second box body. Because the first box body is internally provided with the liquid corrosion inhibition agent and is communicated with the sleeve, the corrosion inhibition agent in the first box body can flow into the sleeve, so that the corrosion inhibition agent is contacted with the polished rod in the oil pumping unit, the corrosion inhibition agent can effectively slow down the corrosion of the polished rod in the oil pumping unit, and the service life of the polished rod is prolonged; simultaneously, the second box body is held with lubricating oil, and the second box body also communicates with the sleeve, consequently, lubricating oil in the second box body also can flow into in the sleeve for lubricating oil and the polished rod contact in the beam-pumping unit, this lubricating oil can effectually reduce the frictional force between polished rod and the packing box gland, thereby makes the polished rod surface be difficult for being damaged, and then has prolonged the life of polished rod. The function of the packing box is effectively enriched.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims (10)

1. A packing box gland, comprising:

a gland body (10);

a sleeve (20) with one end connected with the gland body (10);

the pressing plate assembly (30) is connected with one end of the sleeve (20) far away from the gland body (10);

and a first box body (40) and a second box body (50) which are fixedly connected with the side wall of the sleeve (20) and communicated with the sleeve (20), wherein the first box body (40) is configured to contain a liquid corrosion inhibition medicament, and the second box body (50) is configured to contain lubricating oil.

2. The packing box gland according to claim 1,

the first case (40) includes: the box body comprises a first box body (401) and a first connecting pipe (402), wherein the first end of the first connecting pipe (402) is fixedly connected with the end face of the first end of the first box body (401) and communicated with the first box body (401), and the second end of the first connecting pipe (402) is fixedly connected with the side wall of the sleeve (20) and communicated with the sleeve (20).

3. The packing box gland according to claim 2,

the first container (40) further comprises: a cartridge end cap (403), the cartridge end cap (403) being removably connected to the second end of the first cartridge body (401).

4. The packing box gland according to claim 3,

the first box body (401) is provided with a plurality of connecting rods (401a) fixedly connected with the end face of the first end of the first box body (401), the connecting rods (401a) are all located in the first box body (401), the length directions of the connecting rods (401a) are all parallel to the height direction of the first box body (401), and the length of each connecting rod (401a) is greater than the height of the first box body (401);

the box body end cover (403) is provided with a plurality of connecting holes which are sleeved with the connecting rods (401a) in a one-to-one correspondence mode.

5. The packing box gland according to claim 2,

the first container (40) further comprises: the first end of the second connecting pipe (404) is fixedly connected with the end face of the second end of the first box body (401) and communicated with the first box body (401), and the end face of the second end of the second connecting pipe (404) is provided with an opening.

6. The packing box gland according to claim 5,

the opening of the end surface of the second end of the second connection pipe (404) faces the second end of the first box body (401) and is parallel to the end surface of the second end of the first box body (401).

7. The packing box gland according to any one of claims 1 to 6,

the platen assembly (30) includes: a first platen (301) and a second platen (302) of circular plate shape, the diameter of the first platen (301) being smaller than the diameter of the second platen (302), the first platen (301) being close to the gland body (10) relative to the second platen (302);

one end, far away from the gland body (10), of the sleeve (20) is provided with a first step structure (201) connected with the first pressing plate (301) and a second step structure (202) connected with the second pressing plate (302).

8. The packing box gland according to claim 7,

the sleeve (20) further having a first space (203) between the first platen (301) and the gland body (10), and a second space (204) between the first platen (301) and the second platen (302);

the first container (40) is in communication with the first space (203), and the second container (50) is in communication with the second space (204).

9. The packing box gland according to claim 7,

the platen assembly (30) further comprises: a first sealing fin (305) located between the first pressure plate (301) and the first step structure (201), and a second sealing fin (306) located between the second pressure plate (302) and the second step structure (202).

10. A packing box, comprising:

the packing box body, with this internal packing box gland that connects of packing box, and be located this internal packing of packing box, the packing box gland be claim 1 to 9 any packing box gland.

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