Insulation device for press mortar for a pre-loaded pipeline

Abstract

An insulation device for grout for a pre-loaded pipeline, characterized by a soft plastic mesh fiber water pipe (8), the plastic mesh fiber water pipe (8) being provided along the entire length of the corrugated pipes for grout; at least one plastic mesh fiber water pipe (8) being spirally wound around the outside of each of the corrugated pipes; and the plastic mesh fiber water pipe (8) containing hot water (6).

Description

Technical area

[0001] The present utility model application relates to the technical field of engineering, in particular to an insulating device for press mortar for a pre-loaded pipeline. State of the art

[0002] To control the construction quality of grout for pre-loaded pipelines in winter, an insulating sleeve is currently commonly installed around the support body. By increasing the temperature of the insulating sleeve, the construction temperature of the grout is indirectly increased; or an electric heating wire is wound on the outside of the corrugated pipe for grout, and the electric heating wire is heated by applying electricity to ensure the temperature of the corrugated pipe; or when using a double-wall corrugated pipe, an electric heating wire is spirally wound into a cavity formed by an inner pipe wall and an outer pipe wall and heated by connecting it to a power source to ensure the temperature of the corrugated pipe. Alternatively, a negative low-temperature pipeline grout agent can be used at ambient temperatures above -10°C.

[0003] The above method has the following problems. (1) The large-scale construction of pre-loaded pipeline grout in winter results in a large amount of disposable materials, low heat utilization of the entire thermal insulation structure, and high purchase cost of new materials, resulting in high investment costs. (2) The external heating wire is easily damaged by impact of the corrugated pipe during the concreting process. (3) The temperature rise of the heating wire itself is high, resulting in an uncontrollable and unstable temperature rise of the slurry. Summary of the utility model

[0004] The purpose of the utility model is to provide an insulation device for press-fit mortar for a pre-loaded pipeline to solve the problems of the conventional method of press-fit mortar for a pre-loaded pipeline and insulation in the prior art that the mortar for pre-loaded pipeline is heated, which results in the investment of a large amount of disposable materials, low heat utilization rate of the entire thermal insulation structure, high purchase cost of new materials, damage to the electric heating wire and a high temperature rise of the electric heating wire, that is, it causes problems such as high cost, failure of the insulation measures and instability of the insulation.

[0005] In order to achieve the above-mentioned objective, the following technical solution is chosen for the present utility model.

[0006] A grout insulation device for a pre-stressed pipeline comprises a soft plastic mesh fiber water pipe, the soft plastic mesh fiber water pipe being provided along the entire length of corrugated grout pipes; at least one soft plastic mesh fiber water pipe being spirally wound around the outside of each of the corrugated pipes; and the soft plastic mesh fiber water pipe containing hot water.

[0007] By using a grout insulation device for a pre-loaded pipeline according to the present utility model description and arranging the soft plastic mesh fiber water pipe to be wound around a corrugated pipe, the soft plastic mesh fiber water pipe can effectively resist the impact of concrete due to its good formability and strength and can fit well with the corrugated pipe in a spiral state. The heating performance, uniformity, and stability can be effectively improved by the hot water in the soft plastic mesh fiber water pipe with the pores from the mesh directly heating the corrugated pipe, thus improving the fluidity of the grouting fluid and construction quality and ensuring the smooth progress of the grouting process.

[0008] As a preferred technical solution of the present utility model, at least two soft plastic mesh fiber water pipes are evenly distributed outside each of the corrugated pipes.

[0009] As a preferred technical solution of the present utility model, the insulation device for press mortar for a pre-loaded pipeline further comprises: an insulated water tank in which water is provided; an electric heating element provided in the insulating water tank, the electric heating element being configured to heat water to form the hot water; a water pump having an inlet provided in the insulating water tank and an outlet connected to an inlet of the plastic mesh fiber soft water pipe; wherein an outlet of the soft plastic mesh fiber water pipe is connected to the insulating water tank; and wherein the water pump is configured to pump the hot water into the soft plastic mesh fiber water pipe.

[0010] As a further preferred technical solution of the present utility model, a heat sensor is provided in the insulating water tank.

[0011] As a further preferred technical solution of the present utility model, the electric heating element is connected to a power supply via an electric cable to which a switch is connected.

[0012] As a further preferred technical solution of the present utility model, the inner wall of the insulating water tank is provided with an anchoring base; and the electric heating element and the water pump are each fixed to the anchoring base with bolts.

[0013] As a further preferred technical solution of the present utility model, the water pump is connected to the power supply via an electrical cable to which a switch is connected.

[0014] As another preferred technical solution of the present utility model, the insulating water tank comprises, from the inside to the outside, a steel plate and an insulating cotton blanket in sequence, and the top cover and a side wall of the insulating water tank are connected by a hinge.

[0015] As another preferred technical solution of the present utility model, each of the two ends of the corrugated pipe is provided with a final-stage pipe diameter conversion joint; the soft plastic mesh fiber water pipe is connected to the final-stage pipe diameter conversion joint, which is connected to a pre-stage pipe diameter conversion joint via a water pipe; and the pre-stage pipe diameter conversion joint is connected to the water pump or the insulating water tank via the water pipe.

[0016] As a further preferred technical solution of the present utility model, the water pipe is the soft plastic mesh fiber water pipe.

[0017] In summary, due to the use of the above-mentioned technical solution, the following advantageous effects of the utility model are given.

[0018] By using the grouting insulation device for a pre-loaded pipeline according to the present utility model and arranging the soft plastic mesh fiber water pipe wound around a corrugated pipe, the soft plastic mesh fiber water pipe can effectively resist the impact of concrete due to its good formability and strength, and can be well adapted to the corrugated pipe in a spiral state. This can effectively improve the heating performance, uniformity, and stability by keeping the hot water in the soft plastic mesh fiber water pipe to directly heat the corrugated pipe, thereby improving the fluidity of the grouting fluid and construction quality and ensuring the smooth progress of the grouting process. Brief description of the drawings Fig. 1 is a schematic structural view of a grout isolation device for a pre-loaded pipeline; Fig. 2 is a schematic diagram of the structure of an insulating water tank; Fig. 3 is a schematic diagram of the insulating water tank in the open and closed state; Fig. Figure 4 is a schematic representation of the anchoring of the water pump; Fig. 5 is a schematic representation of the anchoring of the electric heating element; and Fig. Figure 6 is a schematic representation of a pipe diameter conversion joint. Reference symbol:

[0019] 1 - Power supply; 2 - Insulated water tank, 21 - Steel plate, 22 - Insulated cotton blanket, 23 - Hinge, 24 - Anchoring base, 25 - Bolt; 3 - electrical cable, 31 - switch; 4 - heat sensor; 5 - electric heating element; 6 - hot water; 7 - water pump; 8 - soft plastic mesh fiber water pipe; 9 - Pipe diameter conversion connection. Detailed description

[0020] The present utility model will be described in more detail below using experimental examples and specific embodiments. However, the scope of the above-described subject matter of the present utility model is not limited to the following examples, and the present utility model is intended to fall within the scope of the present utility model.

[0021] In the description of the specific embodiments of the present utility model, the terms "top," "bottom," "left," "right," "center," "inside," "outside," and the like, when used, refer to any orientation or positional relationship unless otherwise specified, and are to be understood as expressions based on the orientation or positional relationship in the drawings or the orientation or positional relationship in which the product / device / equipment of the present utility model is commonly used. These terms for orientation or positional relationship are merely intended to facilitate the description of aspects of the present utility model or to simplify the description of specific embodiments for those skilled in the art so that they can quickly understand the aspects.They do not imply that a particular device / part / element must have a particular orientation or be constructed and operated in a particular positional relationship and are therefore not to be understood as a limitation of the present utility model.

[0022] Furthermore, the presence of the terms "horizontal," "vertical," "overhanging," "parallel," and the like does not imply that the respective device / component / element must be absolutely horizontal or vertical, or overhanging, or parallel, but that they may be slightly inclined or offset. Where "horizontal" simply means that its direction is more horizontal than "vertical," this does not mean that the structure must be completely horizontal, but rather that it may be slightly inclined. Alternatively, it can simply be assumed that the respective means / parts / elements arranged in a "horizontal," "vertical," "overhanging," "parallel" direction, etc., may be arranged with a deviation of ± 10%, preferably ± 8%, preferably ± 6%, preferably ± 5%, and preferably ± 4% relative to the respective direction.As long as the corresponding device / part / element is within the error / deviation range, its function can continue to be fulfilled in the solution of the present utility model.

[0023] Furthermore, the terms "first", "second", "third" and the like in such expressions are used only to distinguish between descriptions of the same or similar elements and are not intended to emphasize or imply a relative importance of the respective element.

[0024] Furthermore, in the description of the embodiments of the present utility model, "some," "a plurality," and "plural" mean at least two. It may be 2, 3, 4, 5, 6, 7, 8, 9, etc., and it may be more than 9.

[0025] Furthermore, in the description of the technical solution of the present utility model, unless expressly stated / restricted / limited otherwise, the terms "providing," "fastening," "connecting," "connected," "provided with," "presenting," and "arranging" are to be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection, and it may be a connecting means commonly used in technology, such as welding, riveting, bolts, screws, etc. The connection may be a mechanical connection, an electrical connection, or a communication connection. They may be connected directly or indirectly via an intermediate medium, and there may be communication between the two elements.

[0026] In the conventional method for grouting and insulating grout for a pre-loaded pipeline known in the prior art, the grout for a pre-loaded pipeline is heated, which results in high consumption of disposable materials, low heat utilization of the entire thermal insulation structure, high purchase costs for new materials, damage to the electric heating wire, and a high temperature rise of the electric heating wire. This means that the cost is high, the insulation measures are ineffective, and the insulation is unstable. Accordingly, the technical solution of the present application will be described below in conjunction with the Fig. 1 and Fig. 6. Example 1

[0027] As in the Fig. As shown in Figures 1 to 6, the press mortar for a pre-loaded pipeline and a thermal insulation device according to the present utility model includes a constant temperature control system and a hot water circulation system. The constant temperature control system includes a power supply 1, an electric wire 3, a heat sensor 4, and an electric heating element 5. The hot water circulation system includes an insulated water tank 2, a water pump 7, a soft plastic fiber water pipe 8, a pipe diameter conversion joint 9, and hot water 6.

[0028] The soft plastic fiber water pipes 8 are arranged along the entire length of the corrugated pipes pressed into the beam, and at least one of the soft plastic fiber water pipes 8 is spirally wound around each of the corrugated pipes. At least two of the soft plastic fiber water pipes 8 can be evenly distributed on the outside of each of the corrugated pipes. In this embodiment, as shown in Fig. 1, three of the soft plastic fiber water pipes 8 are evenly distributed on the outside of each of the corrugated pipes. On the one hand, the arrangement angles of the three soft plastic fiber water pipes 8 are equal along the circumferential direction of the corrugated pipes, that is, the arrangement angle of adjacent soft plastic fiber water pipes 8 is 120°; and the winding pitch of the soft plastic fiber water pipes 8 is also uniform.

[0029] The hot water 6 is held in the soft plastic fiber fabric hose 8 so that the corrugated pipe can be heated.

[0030] In an alternative embodiment, the corrugated pipe is integrally fixed to the soft plastic mesh fiber water pipe8 by means of circular steel bar clamps, one of which is arranged at intervals of 2 m.

[0031] As in the Fig. As shown in Figures 1 to 5, water is supplied into the insulating water tank 2. The insulating water tank 2 is provided with a steel plate 21 and an insulating cotton blanket 22 in sequence from the inside to the outside, and a top cover and a side wall of the insulating water tank 2 are connected via a hinge 23 so that the insulating water tank 2 can be opened and closed. The volume of the insulating water tank 2 is larger than the total amount of water used in the beam. The insulating water tank 2 is provided with holes at corresponding positions of a water inlet, a water outlet, and an electric wire inlet, and an anchoring base 24 is arranged at the positions of the water pump 7, the electric heater 5, and the heat sensor 4. That is, in the present embodiment, the water pump 7 and its inlet, the electric heater 5, and the heat sensor 4 are all provided in the insulating water tank 2.The electric heating element 5 is provided in the insulating water tank 2, and the electric heating element 5 is configured to heat water to form the hot water 6.

[0032] In an alternative embodiment, as in the Fig. 2, Fig. 4 and Fig. As shown in Figure 5, the anchor base 24 is made of a channel steel and inverted, so that a flange plate is welded to the steel plate 21. The weld height is not less than the thickness of the base material. Bolt holes are provided on a web. The amount of water injected into the insulating water tank 2 corresponds to the amount of water added to the water tank and the amount of water injected into the soft plastic fiber water pipe 8. The thermal sensor 4, the electric heating element 5, and the water pump 7 are each attached to the anchor base 24 via bolts 25.

[0033] As in Fig. 1, the water pump 7 is selected according to the total amount of water to be pumped. An inlet of the water pump 7 protrudes into the hot water 6 at the bottom of the insulated water tank 2, and an outlet of the water pump 7 is connected to an inlet of the soft plastic fiber water pipe 8. An outlet of the soft plastic fiber water pipe 8 is connected to the insulated water tank 2. The water pump 7 is configured to push the hot water 6 into the soft plastic fiber water pipe 8. The positive and negative electrodes of the water pump 7 are connected to the power supply 1 via the electric cable 3, and the positive electrode is connected to the switch 31. The power supply 1 can optionally have a voltage of 220 V.

[0034] As in the Fig. 1, Fig. 2 and Fig. 5, the heat sensor 4 and the electric heating rod 5 are selected in time according to the control temperature. The electric heating rod 5 includes a plurality of electric heating rods. The positive electrodes of a plurality of electric heating rods 5 are respectively connected in series with the negative electrodes of the heat sensor 4. The plurality of electric heating rods 5 are connected in parallel. The negative electrodes of the plurality of electric heating rods 5 are connected to the power supply 1 via the electric wire 3. The positive electrodes of the heat sensor 4 are sequentially connected to a switch 31 and the power supply 1 via the electric wire 3. The main function of the heat sensor 4 is to control the water temperature. When the water temperature reaches a preset temperature, the power supply 1 is cut off and the electric heating rod 5 is turned off to stop heating.When the heat sensor 4 detects that the temperature is below the preset temperature, the power supply 1 is closed and the electric heating element 5 is switched on to start heating. A voltage of 220 V can be selected for the power supply 1. The electric heating element 5 can be a U-shaped electric heating element.

[0035] As in the Fig. 1 and Fig.As shown in Figure 6, both ends of each of the corrugated pipes are respectively provided with a pipe diameter 9 conversion joint. The soft plastic cross-linked fiber water pipe 8 is connected to the pipe diameter 9 conversion joint. A water pipe of the final-stage pipe diameter 9 conversion joint is connected to the pre-stage pipe diameter 9 conversion joint, which is connected to the water pump 7 or the insulating water tank 2 via the water pipe. The water pipe accommodates the soft plastic cross-linked fiber water pipe 8. The pipe diameters of the soft plastic cross-linked fiber water pipes 8 in different connected sections are determined according to the flow rate of water.The length of the soft plastic mesh fiber water pipe 8 in the support is preferably + 2 m of the total length of the coil in the support, and the length of the soft plastic mesh fiber water pipe 8 externally connected to the insulating water tank 2 is preferably 2 times the straight length from the water tank to the water inlet of the support body, or the actual length. The length should be as short as possible to avoid heat loss due to the environmental impact on the soft plastic mesh fiber water pipe 8.

[0036] In an alternative embodiment, a transparent soft plastic mesh fiber water pipe is used for the soft plastic mesh fiber water pipe 8.

[0037] During winter construction, the low ambient temperature has a significant impact on the fluidity of the injection fluid. By using the soft plastic mesh fiber water pipe 8 in the support with constant temperature hot water to directly heat the corrugated pipe, the heating efficiency, uniformity, and stability can be effectively improved, thereby improving the fluidity of the injection fluid and construction quality, and ensuring the smooth progress of the injection process.

[0038] In addition to the soft flexible plastic mesh fiber water pipe 8 in the beam, all other components can be directly reused after the installation is completed without the need for re-installation, which ensures high construction efficiency and high secondary use rate, thus effectively saving construction costs.

[0039] This device can automatically regulate the temperature of the hot water and thus ensure that the hot water 6 in the flexible soft plastic mesh fiber water pipe 8 in the beam always has a constant temperature.

[0040] In the press mortar insulation device for a preloaded pipeline described in the present embodiment, by arranging the soft plastic mesh fiber water pipe 8 to be wound on a corrugated pipe, since the soft plastic mesh fiber water pipe 8 has good formability and strength, the impact of concrete can be effectively resisted and can be well fitted to the corrugated pipe in a spiral state.

[0041] The foregoing are only preferred embodiments of the utility model and are not intended to limit the utility model. All modifications, equivalents, and improvements within the spirit and scope of the utility model are intended to be included within the scope of protection of this utility model.

[0042] The present utility model relates to the technical field of engineering, and more particularly to a grout insulation device for a pre-loaded pipeline, including a soft plastic mesh fiber water pipe, wherein the soft plastic mesh fiber water pipe is provided along the entire length of corrugated grout pipes; at least one soft plastic mesh fiber water pipe is spirally wound around the outside of each of the corrugated pipes; and the soft plastic mesh fiber water pipe is filled with hot water.The grouting insulation device for a preloaded pipeline as described in the present utility model specification can be realized by arranging the soft plastic mesh fiber water pipe to be wound on a corrugated pipe, because the soft plastic mesh fiber water pipe has good formability and strength, can effectively resist the impact of concrete, and can be well fitted to the corrugated pipe in a spiral state, which can effectively improve the heating performance, uniformity and stability by keeping the hot water in the soft plastic mesh fiber water pipe to directly heat the corrugated pipe, so as to improve the fluidity of the grouting liquid and the construction quality and ensure the smooth progress of the grouting process.

Claims

[1] Insulation device for press mortar for a pre-loaded pipeline, characterized by a soft plastic mesh fiber water pipe (8), wherein the plastic mesh fiber water pipe (8) is provided along the entire length of the corrugated pipes for the press mortar; at least one plastic mesh fiber water pipe (8) is spirally wound around the outside of each of the corrugated pipes; and the plastic mesh fiber water pipe (8) contains hot water (6). [2] Insulation device for press mortar for a pre-loaded pipeline according to claim 1, characterized by that at least two soft plastic mesh fiber water pipes (8) are evenly distributed outside each of the corrugated pipes. [3] Insulation device for press mortar for a pre-loaded pipeline according to claim 1, characterized by that it also includes: an insulating water tank (2) in which water is provided; an electric heating rod (5) provided in the insulating water tank (2), the electric heating rod (5) being configured to heat water to form the hot water (6); a water pump (7) whose inlet is provided in the insulating water tank (2) and whose outlet is connected to an inlet of the soft plastic mesh fiber water pipe (8); wherein an outlet of the soft plastic mesh fiber water pipe (8) is connected to the insulating water tank (2); and the water pump (7) is configured to pump the hot water (6) into the soft plastic mesh fiber water pipe (8). [4] Insulation device for press mortar for a pre-loaded pipeline according to claim 3, characterized by that a heat sensor (4) is provided in the insulating water tank (2). [5] Insulation device for press mortar for a pre-loaded pipeline according to claim 4, characterized bythat the electric heating element (5) is connected to a power supply (1) via an electric cable (3) to which a switch (31) is connected. [6] Insulation device for press mortar for a pre-loaded pipeline according to claim 3, characterized by that the inner wall of the insulating water tank (2) is provided with an anchoring base (24) and the electric heating element (5) and the water pump (7) are each fastened to the anchoring base (24) with bolts (25). [7] Insulation device for press mortar for a pre-loaded pipeline according to claim 3, characterized by that the water pump (7) is connected to the power supply (1) via an electrical cable (3) to which a switch (31) is connected. [8] Insulation device for press mortar for a pre-loaded pipeline according to claim 3, characterized bythat the insulating water tank (2) comprises a steel plate (21) and an insulating cotton blanket (22) successively from the inside to the outside, and the upper cover and a side wall of the insulating water tank (2) are connected by a hinge (23). [9] Insulation device for press mortar for a pre-loaded pipeline according to claim 3, characterized by that each of the two ends of the corrugated pipe is provided with a final-stage pipe diameter conversion joint (9); the soft plastic mesh fiber water pipe (8) is connected to the final-stage pipe diameter conversion joint (9), which is connected to a preliminary-stage pipe diameter conversion joint (9) via a water pipe; and the preliminary-stage pipe diameter conversion joint (9) is connected to the water pump (7) or the insulating water tank (2) via the water pipe. [10] Insulation device for press mortar for a pre-loaded pipeline according to claim 9, characterized bythat the water pipe is the soft plastic mesh fiber water pipe (8).

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