Plugging device for plugging pressurized heating branch pipe

Abstract

The utility model relates to a plugging device for plugging a heating branch pipe with pressure, which comprises a sleeve, a plugging device, a pressure sensor, a pressure sensor and a pressure sensor, and is characterized in that the inner diameter of the sleeve is larger than or equal to the outer diameter of the heating branch pipe; the nut is fixedly connected to one end of the sleeve; and the screw rod is matched with the nut for use.

Description

Technical Field

[0001] The utility model relates to the field of heating pipeline maintenance, in particular to a blocking device for blocking a pressurized heating branch pipe. Background Art

[0002] The statements in this section are merely intended to provide background information related to the technical solution of the present application to aid understanding, and they do not necessarily constitute prior art for the technical solution of the present application.

[0003] In the extremely cold north, winter heating is essential. In some factories and production workshops, it is also necessary to ensure sufficient temperature in the factory or workshop even in low temperature weather to avoid affecting production indicators and product performance.

[0004] In many factories, the heating unit is generally responsible for maintaining and repairing the heating system. In the heating system, there is usually a heating main laid to each workshop area, and then each workshop is connected to each factory building or office area through a heating branch pipe. According to the requirements for laying heating pipes, the heating branch pipes of each workshop must have valve controls near the heating main pipe to facilitate later maintenance. Before winter heating, the heating pipes are generally pressure tested and inspected, but in actual operation, if the heating branch pipe is close to one side of the heating main pipe or there is a problem with the valve, or if the branch pipe needs to be blocked during the heating period, the heating main pipe must be stopped before processing, which will cause other workshops to be unable to heat. If the processing cycle is long, it will seriously affect the heating and production process of other workshops.

[0005] Therefore, a heating branch pipe plugging device is needed, which can plug the pressurized heating branch pipe, that is, to achieve plugging without affecting the normal operation of the heating main pipe and other heating branch pipes. Utility Model Content

[0006] One aspect of the utility model relates to a blocking device for blocking a pressurized heating branch pipe, comprising:

[0007] A casing, the inner diameter of which is greater than or equal to the outer diameter of the heating branch pipe to be blocked;

[0008] a nut fixedly connected to one end of the sleeve; and

[0009] A screw rod used in conjunction with the nut.

[0010] In one embodiment, the nut is welded to one end of the sleeve.

[0011] In one embodiment, the inner diameter of the sleeve is 0-5 mm larger than the outer diameter of the heating branch pipe to be blocked.

[0012] In one embodiment, the sleeve is a stainless steel sleeve.

[0013] In one embodiment, the nut is a stainless steel nut and the screw is a stainless steel screw.

[0014] In one embodiment, the nut is a Φ28 model nut, and the screw is a Φ28 model screw.

[0015] In one embodiment, the screw is a Φ28×160 screw.

[0016] In one embodiment, the length of the sleeve is about 20 centimeters.

[0017] The beneficial effect of the utility model is that by using the plugging device for plugging a pressurized heating branch pipe of the present application, it is not necessary to shut down the heating main pipe during the plugging process, and it will not affect other heating branch pipes or heating units. The plugging device for plugging a pressurized heating branch pipe of the present application has a simple structure, is easy to obtain materials, and the components used are all commonly used parts. It is low in cost and has a simple and convenient operation process. Therefore, it can greatly save manpower and material resources, reduce production costs, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings, wherein:

[0019] Figure 1 A heating pipe including a heating main pipe and a heating branch pipe is shown;

[0020] Figure 2 A blocking device for blocking a pressurized heating branch pipe according to one embodiment is shown.

[0021] In the figure, 1-heating main pipe; 2-heating branch pipe; 3-sleeve; 5-nut; 6-screw. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Figure 1 The heating pipeline includes a heating main pipe 1 and a heating branch pipe 2. The heating main pipe 1 is a main pipe for conveying heating, and the heating branch pipe 2 is connected to the heating main pipe 1 (for example, by welding) and conveys the heating to different areas or factory areas. The heating pipeline may include multiple heating branch pipes 2.

[0024] When the heating pipes are working normally or under pressure, it is difficult to firmly seal the high-pressure water pipes by ordinary electric welding. Therefore, it is usually only possible to shut down the entire heating system for welding repairs. The heating mains in the factory area lead to various workshops. If the heating mains are stopped, it will have a greater impact on other workshops.

[0025] Figure 2 FIG. 1 shows a plugging device for plugging a pressurized heating branch pipe according to an embodiment. For ease of description, Figure 2 The figure also shows the heating main pipe 1 and the heating branch pipe 2. Figure 2 As shown, the plugging device for plugging the pressurized heating branch pipe includes a sleeve 3, a nut 5, and a screw 6. The inner diameter of the sleeve 3 is greater than or equal to the outer diameter of the heating branch pipe 2 to be plugged. In one embodiment, the inner diameter of the sleeve 3 is 0-5 mm larger than the outer diameter of the heating branch pipe 2 to be plugged. The nut 5 is fixedly connected to one end of the sleeve 3 (the other end opposite to the end of the heating branch pipe 2 to be plugged). In one embodiment, the nut 5 can be welded to one end of the sleeve 3. The screw 6 is a screw used in conjunction with the nut 5.

[0026] When plugging the heating branch pipe 2, first insert the sleeve 3 connected with the nut 5 into the heating branch pipe 2, and weld the joint between the sleeve 3 and the heating branch pipe 2 to ensure that no heating leakage occurs there. Then, screw 6 is screwed into the nut 5 to achieve plugging of the heating branch pipe 2.

[0027] The advantage of this embodiment is that the plugging device can be used to plug the pressurized heating branch pipe when the heating pipe is working normally. When the heating branch pipe is no longer used in winter, the heating branch pipe must be sealed at the root. The present device can be used to insert a sleeve (with a nut welded to the sleeve) with an inner diameter greater than or equal to the branch pipe into the branch pipe, and the pressurized water will flow out from the bottom of the sleeve. In this way, the branch pipe and the sleeve cannot contact water, and the welding operation between the sleeve and the branch pipe will not be affected at all. After the sleeve and the branch pipe are welded, the screw can be screwed into the nut welded on the sleeve, so that the heating branch pipe can be plugged without shutting down the heating main pipe, and the heating of other workshops will not be affected.

[0028] In one embodiment, the sealing device for sealing the pressurized heating branch pipe may use a stainless steel sleeve, a stainless steel screw, and a stainless steel nut to avoid corrosion, leakage, etc. caused by long-term exposure to wind, sun, and rust after sealing.

[0029] In one embodiment, the nut 5 is a Φ28 nut, and correspondingly, the screw 6 is a Φ28 screw. In one embodiment, the screw is a Φ28×160 screw.

[0030] In one embodiment, the length of the sleeve 3 is about 20 centimeters.

[0031] According to one embodiment, the process of plugging the pressurized heating branch pipe is as follows: insert the stainless steel sleeve 3 welded with a Φ28 stainless steel nut 5 into the heating branch pipe 2. During the sleeve process, the operator needs to wear heat-insulating gloves. At this time, the hot water in the heating branch pipe 2 can flow out from the bottom of the sleeve 3 (that is, the end welded with the nut 5). After the stainless steel sleeve 3 is inserted into the heating branch pipe 2, welding is performed at the joint between the sleeve 3 and the heating branch pipe 2. Afterwards, the screw 6 is screwed into the nut 5, and the plugging is completed after tightening. In one embodiment, the screwed screw 6 and nut 5 can also be welded to increase the service life.

[0032] By using the plugging device for plugging pressurized heating branch pipes of the present application, there is no need to shut down the heating main pipe during the plugging process, and other heating branch pipes or heating units will not be affected. The plugging device for plugging pressurized heating branch pipes of the present application has a simple structure, is easy to obtain materials, and the components used are all commonly used parts, with low cost and simple and convenient operation (only need to weld the sleeve 3 to the heating branch pipe 2, and then screw the screw 6 into the nut 5 at one end of the sleeve 3 to achieve the purpose of plugging), so it can greatly save manpower and material resources, reduce production costs, and improve work efficiency.

[0033] References herein to "various embodiments", "some embodiments", "one embodiment", or "an embodiment" refer to specific features, structures, or properties described in conjunction with the embodiments being included in at least one embodiment. Therefore, the phrases "in various embodiments", "in some embodiments", "in one embodiment", or "in an embodiment" appearing throughout the present invention do not necessarily refer to the same embodiment. In addition, specific features, structures, or properties may be combined in any suitable manner in one or more embodiments. Therefore, specific features, structures, or properties shown or described in conjunction with one embodiment may be combined in whole or in part with features, structures, or properties of one or more other embodiments without restriction, as long as the combination is not illogical or inoperable. Expressions similar to "according to A", "based on A", "through A", or "using A" appearing herein are intended to be non-exclusive, that is, "according to A" may include "according to A only" or "according to A and B", unless it is specifically stated that its meaning is "according to A only". In this application, for the sake of clarity, some exemplary operating steps are described in a certain order, but those skilled in the art will understand that each of these operating steps is not essential, and some of the steps may be omitted or replaced by other steps. These operation steps do not have to be executed sequentially in the manner shown; on the contrary, some of these operation steps can be executed in different orders or in parallel according to actual needs, as long as the new execution manner is not illogical or inoperable.

[0034] Having thus described several aspects of at least one embodiment of the present invention, it will be appreciated that various changes, modifications and improvements will readily occur to those skilled in the art. Such changes, modifications and improvements are intended to be within the spirit and scope of the present invention. Although the present invention has been described by way of some embodiments, the present invention is not limited to the embodiments described herein, and includes various changes and variations made without departing from the scope of the present invention.

Claims

1. A plugging device for plugging a pressurized heating branch pipe, characterized in that: include: A casing, the inner diameter of which is greater than or equal to the outer diameter of the heating branch pipe to be blocked; a nut fixedly connected to one end of the sleeve; as well as A screw rod used in conjunction with the nut.

2. The blocking device according to claim 1, wherein: The nut is welded to one end of the sleeve.

3. The blocking device according to claim 1, wherein: The inner diameter of the sleeve is 0-5 mm larger than the outer diameter of the heating branch pipe to be blocked.

4. The blocking device according to claim 1, wherein: The casing is a stainless steel casing.

5. The blocking device according to claim 1, wherein: The nut is a stainless steel nut, and the screw rod is a stainless steel screw rod.

6. The blocking device according to claim 1, wherein: The nut is a Φ28 nut, and the screw is a Φ28 screw.

7. The blocking device according to claim 6, wherein: The screw is a Φ28×160 screw.

8. The blocking device according to claim 1, wherein: The length of the sleeve is about 20 centimeters.

9. The blocking device according to claim 1, wherein: The nut is welded to one end of the sleeve, the sleeve is a stainless steel sleeve, the nut is a stainless steel nut, and the screw rod is a stainless steel screw rod.

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