Full-automatic polyurethane foaming machine for pipeline thermal insulation production

Abstract

The utility model discloses a full-automatic polyurethane foaming machine for pipeline heat preservation production, and particularly relates to the technical field of polyurethane foaming machines, the full-automatic polyurethane foaming machine comprises a heat preservation storage tank, a cleaning mechanism for cleaning the interior of the heat preservation storage tank is arranged on one side of the heat preservation storage tank, and feeding pipes are fixedly communicated with the two sides of the top of the heat preservation storage tank; the cleaning mechanism comprises a water tank arranged on one side of the heat preservation storage tank, a water pump is fixedly arranged at the top of the water tank, a water inlet of the water pump is fixedly communicated with a water inlet pipe, the bottom end of the water inlet pipe extends into the water tank, a water outlet of the water pump is fixedly communicated with a water outlet pipe, and one end of the water outlet pipe extends into the heat preservation storage tank. According to the device, the interior of the heat preservation storage tank can be cleaned through the cleaning mechanism, the cleanliness of the interior of the heat preservation storage tank is guaranteed, a large amount of manpower is saved, impurities in polyurethane mixed liquid can be filtered through the filtering mechanism, and the situation that the foaming ejector is blocked by the impurities, and the foaming efficiency is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane foaming machines, in particular to a full-automatic polyurethane foaming machine for pipeline insulation production. Background Art

[0002] Polyurethane foam insulated steel pipe, also known as pipe in pipe, consists of a FRP outer sheath, a polyurethane foam insulation layer and a steel pipe. The polyurethane insulation layer is made by injecting two materials into the gap between the FRP outer sheath and the steel pipe through a polyurethane foaming machine. The two materials undergo a chemical reaction to fully fill the gap between the steel pipe and the FRP outer sheath, becoming a hard polyurethane foam insulation layer with a certain bonding strength, forming a solid whole between the FRP outer sheath, the insulation layer and the steel pipe.

[0003] For example, the Chinese patent application with application number 202020449808.9 provides a polyurethane foaming machine for producing pipe insulation layers, which includes a dual-material insulation storage tank and a foaming injector; the dual-material insulation storage tank is provided with two material inlets on the top and two material outlets at the bottom, each material outlet is provided with a switch control valve, a mixing foaming channel connected to the bottom is provided in the foaming injector, a first feed channel and a second feed channel connected to the mixing foaming channel are provided on the side wall of the foaming injector, and the first feed channel and the second feed channel are connected to the outside of the first feed channel and the second feed channel, and a delivery pipe is provided on the delivery pipe, and an interception and filtration device is installed between the front end of the two delivery pipes and the two material outlets. This technical solution uses a dual-material insulation storage tank to heat and insulate the two materials for storage, and filters the mixed impurities through the interception and filtration device before transporting them to the foaming injector to avoid affecting the equipment, and can also better foam and have better product quality.

[0004] However, the following problems still exist in this technical solution: after use, there will be residual polyurethane mixed liquid in the insulated storage tank. When cleaning the residual polyurethane mixed liquid inside the insulated storage tank in the device, the dual-material insulated storage tank needs to be removed and then manually cleaned inside, which is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of the utility model is to provide a fully automatic polyurethane foaming machine for pipe insulation production, which can clean the inside of the insulation storage tank through a cleaning mechanism to ensure the cleanliness of the inside of the insulation storage tank, saving a lot of manpower, and can also filter impurities in the polyurethane mixed liquid through a filtering mechanism to prevent impurities from clogging the foaming injector and affecting the foaming efficiency, so as to solve the above-mentioned shortcomings in the technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic polyurethane foaming machine for pipeline insulation production, comprising an insulation storage tank, one side of which is provided with a cleaning mechanism for cleaning the inside of the insulation storage tank, and both sides of the top of the insulation storage tank are fixedly connected with a feed pipe.

[0007] Preferably, the cleaning mechanism includes a water tank arranged on one side of the heat-insulating storage tank, a water pump is fixedly provided on the top of the water tank, the water inlet of the water pump is fixedly connected to a water inlet pipe, the bottom end of the water inlet pipe extends to the inside of the water tank, the water outlet of the water pump is fixedly connected to a water outlet pipe, one end of the water outlet pipe extends to the inside of the heat-insulating storage tank, one end of the water outlet pipe extending to the inside of the heat-insulating storage tank is fixedly connected to a first connecting pipe, the bottom of the first connecting pipe is fixedly connected to a plurality of nozzles, the top of the water tank is fixedly connected to a second connecting pipe, and a pipe cap is inserted into the inside of the second connecting pipe for cleaning the inside of the heat-insulating storage tank.

[0008] Preferably, a mixing mechanism for stirring the material is provided inside the insulated storage tank, and the mixing mechanism includes a stirring shaft provided inside the insulated storage tank, a plurality of stirring rods are fixedly provided on the outside of the stirring shaft, two connecting rods are fixedly provided on both sides of the stirring rod, and the two connecting rods on the same side are provided with the same scraper at one end, the top end of the connecting rod passes through the insulated storage tank and extends out of the top of the insulated storage tank, a motor is fixed on the top of the connecting rod, and the motor is fixed to the top of the insulated storage tank through a bracket for stirring the material.

[0009] Preferably, a filtering mechanism for filtering impurities in the polyurethane mixture is provided at the bottom of the heat-insulating storage tank, the filtering mechanism includes a support frame provided at the bottom of the heat-insulating storage tank, a support plate is provided inside the support frame, a first discharge pipe is fixedly connected to the bottom of the heat-insulating storage tank, the bottom of the first discharge pipe is connected to a holding box, the bottom of the holding box passes through the support plate and extends out of the bottom of the support plate, a filter screen is inserted into the holding box, the front side of the filter screen passes through the holding box and extends out of the front side of the holding box, a handle is fixedly provided on the front side of the filter screen, the outside of the first discharge pipe is passed through, a second discharge pipe is fixedly connected to the bottom of the holding box, one end of the second discharge pipe is connected to the foaming injector, for filtering impurities in the polyurethane mixture.

[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0011] 1. Start the water pump and use it to suck the water inside the water tank into the water inlet pipe, and then into the water outlet pipe through the water inlet pipe. The water then enters the first connecting pipe through the water outlet pipe. The water is finally sprayed on the inner wall of the thermal insulation tank through the nozzle on the first connecting pipe. Then start the motor, and the motor drives the stirring shaft to rotate. The rotation of the stirring shaft drives the scraper to move. The scraper rotates to scrape off the residual polyurethane mixture and water on the inner wall of the thermal insulation tank, thereby cleaning the inside of the thermal insulation tank, ensuring the cleanliness of the interior of the thermal insulation tank, and saving a lot of manpower.

[0012] 2. The mixed polyurethane mixture flows into the interior of the container through the first discharge pipe. The filter screen inside the container can filter impurities in the polyurethane mixture to prevent impurities from clogging the foaming ejector and affecting the foaming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 This is a cross-sectional view of the thermal insulation storage tank of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of the cleaning mechanism of the present utility model;

[0018] Figure 5 This is a schematic structural diagram of the mixing mechanism of the present utility model;

[0019] Figure 6 It is a structural diagram of the filtering mechanism of the present invention.

[0020] Description of reference numerals:

[0021] 1 Insulated storage tank;

[0022] 2 cleaning mechanism, 201 water tank, 202 water pump, 203 water inlet pipe, 204 water outlet pipe, 205 first connecting pipe, 206 nozzle, 207 second connecting pipe, 208 pipe cap, 209 scraper;

[0023] 3 mixing mechanism, 301 stirring shaft, 302 stirring rod, 303 connecting rod, 304 motor;

[0024] 4 filtering mechanism, 401 supporting frame, 402 supporting plate, 403 first discharge pipe, 404 containing box, 405 filter screen, 406 second discharge pipe, 407 handle;

[0025] 5 Feed pipe. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides Figure 1-6 The fully automatic polyurethane foaming machine for pipe insulation production shown in the figure includes an insulation storage tank 1, a cleaning mechanism 2 for cleaning the interior of the insulation storage tank 1 is provided on one side of the insulation storage tank 1, and feed pipes 5 are fixedly connected to both sides of the top of the insulation storage tank 1;

[0028] like Figure 5 As shown, the interior of the heat-insulating storage tank 1 is provided with a mixing mechanism 3 for stirring the material, and the mixing mechanism 3 includes a stirring shaft 301 provided inside the heat-insulating storage tank 1, and a plurality of stirring rods 302 are fixedly provided on the outside of the stirring shaft 301. Two connecting rods 303 are fixedly provided on both sides of the stirring rods 302. One end of the two connecting rods 303 located on the same side is provided with the same scraper 209. The top of the connecting rod 303 passes through the heat-insulating storage tank 1 and extends out of the top of the heat-insulating storage tank 1. The top of the connecting rod 303 is fixed with a motor 304, and the motor 304 is fixed to the top of the heat-insulating storage tank 1 through a bracket.

[0029] The material is poured into the heat-insulating storage tank 1 through the feeding pipe 5, and then the motor 304 is started. The motor 304 drives the stirring shaft 301 to rotate, and the rotation of the stirring shaft 301 drives the stirring rod 302 to rotate. The stirring rod 302 rotates to mix the materials to form a polyurethane mixture.

[0030] like Figure 6As shown, a filtering mechanism 4 for filtering impurities in the polyurethane mixture is provided at the bottom of the heat-insulating storage tank 1, and the filtering mechanism 4 includes a support frame 401 provided at the bottom of the heat-insulating storage tank 1, a support plate 402 is provided inside the support frame 401, a first discharge pipe 403 is fixedly connected to the bottom of the heat-insulating storage tank 1, and the bottom of the first discharge pipe 403 is connected to a holding box 404, the bottom of the holding box 404 passes through the support plate 402 and extends out of the bottom of the support plate 402, a filter screen 405 is inserted into the holding box 404, the front side of the filter screen 405 passes through the holding box 404 and extends out of the front side of the holding box 404, a handle 407 is fixedly provided on the front side of the filter screen 405, a 408 is passed through the outside of the first discharge pipe 403, and a second discharge pipe 406 is fixedly connected to the bottom of the holding box 404, and one end of the second discharge pipe 406 is connected to the foaming ejector;

[0031] Open the 408 on the outside of the first discharge pipe 403, and the mixed polyurethane mixture flows into the interior of the holding box 404 through the first discharge pipe 403. The filter 405 inside the holding box 404 can filter impurities in the polyurethane mixture to prevent impurities from clogging the foaming injector and affecting the foaming efficiency. The filtered polyurethane mixture enters the interior of the second discharge pipe 406, and then enters the interior of the foaming injector through the second discharge pipe 406. The next step is performed through the foaming injector. When it is necessary to clean the impurities on the filter 405, the filter 405 can be pulled out from the interior of the holding box 404 by holding the handle 407 for cleaning.

[0032] like Figure 4 As shown, the cleaning mechanism 2 includes a water tank 201 provided on one side of the heat-insulating storage tank 1, a water pump 202 is fixedly provided on the top of the water tank 201, the water inlet of the water pump 202 is fixedly connected to a water inlet pipe 203, the bottom end of the water inlet pipe 203 extends to the interior of the water tank 201, the water outlet of the water pump 202 is fixedly connected to a water outlet pipe 204, one end of the water outlet pipe 204 extends to the interior of the heat-insulating storage tank 1, one end of the water outlet pipe 204 extending to the interior of the heat-insulating storage tank 1 is fixedly connected to a first connecting pipe 205, the bottom of the first connecting pipe 205 is fixedly connected to a plurality of nozzles 206, the top of the water tank 201 is fixedly connected to a second connecting pipe 207, and a pipe cap 208 is inserted into the second connecting pipe 207;

[0033] Start the water pump 202, and use the water pump 202 to suck the water inside the water tank 201 into the water inlet pipe 203, and then enter the water outlet pipe 204 through the water inlet pipe 203. The water then enters the first connecting pipe 205 through the water outlet pipe 204, and the water is finally sprayed on the inner wall of the heat-insulating storage tank 1 through the nozzle 206 on the first connecting pipe 205. Then start the motor 304, and the motor 304 drives the stirring shaft 301 to rotate. The rotation of the stirring shaft 301 drives the scraper 209 to move. The scraper 209 rotates to scrape off the residual polyurethane mixture and water on the inner wall of the heat-insulating storage tank 1, so that the inside of the heat-insulating storage tank 1 can be cleaned, ensuring the cleanliness of the inside of the heat-insulating storage tank 1 and saving a lot of manpower.

[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully automatic polyurethane foaming machine for pipe insulation production, comprising a heat-insulating storage tank (1), characterized in that: A cleaning mechanism (2) for cleaning the interior of the thermal insulation storage tank (1) is provided on one side of the thermal insulation storage tank (1); The cleaning mechanism (2) comprises a water tank (201) provided on one side of the heat-insulating storage tank (1); a water pump (202) is fixedly provided on the top of the water tank (201); a water inlet of the water pump (202) is fixedly connected to a water inlet pipe (203); the bottom end of the water inlet pipe (203) extends into the interior of the water tank (201); a water outlet of the water pump (202) is fixedly connected to a water outlet pipe (204); one end of the water outlet pipe (204) extends into the interior of the heat-insulating storage tank (1); one end of the water outlet pipe (204) extending into the interior of the heat-insulating storage tank (1) is fixedly connected to a first connecting pipe (205); the bottom of the first connecting pipe (205) is fixedly connected to a plurality of nozzles (206).

2. The fully automatic polyurethane foaming machine for pipe insulation production according to claim 1, characterized in that: The top of the water tank (201) is fixedly connected to a second connecting pipe (207), and a pipe cap (208) is inserted into the interior of the second connecting pipe (207).

3. The fully automatic polyurethane foaming machine for pipe insulation production according to claim 1, characterized in that: The heat-insulating storage tank (1) is provided with a mixing mechanism (3) for stirring the material; The mixing mechanism (3) comprises a stirring shaft (301) arranged inside the heat-insulating storage tank (1); a plurality of stirring rods (302) are fixedly provided on the outside of the stirring shaft (301); two connecting rods (303) are fixedly provided on both sides of the stirring rods (302); and a common scraper (209) is provided at one end of the two connecting rods (303) located on the same side.

4. The fully automatic polyurethane foaming machine for pipe insulation production according to claim 3, characterized in that: The top end of the connecting rod (303) passes through the heat-insulating storage tank (1) and extends out of the top of the heat-insulating storage tank (1). A motor (304) is fixedly provided on the top end of the connecting rod (303). The motor (304) is fixed to the top of the heat-insulating storage tank (1) via a bracket.

5. The fully automatic polyurethane foaming machine for pipe insulation production according to claim 1, characterized in that: The bottom of the heat-insulating storage tank (1) is provided with a filtering mechanism (4) for filtering impurities in the polyurethane mixed liquid; The filtering mechanism (4) comprises a support frame (401) provided at the bottom of the heat-insulating storage tank (1), a support plate (402) being provided inside the support frame (401), a first discharge pipe (403) being fixedly connected to the bottom of the heat-insulating storage tank (1), the bottom of the first discharge pipe (403) being connected to a container box (404), the bottom of the container box (404) passing through the support plate (402) and extending out of the bottom of the support plate (402), the container box ( 404) is plugged with a filter screen (405) inside, the front side of the filter screen (405) passes through the container box (404) and extends out of the front side of the container box (404), a handle (407) is fixedly provided on the front side of the filter screen (405), the outside of the first discharge pipe (403) is penetrated by (408), the bottom of the container box (404) is fixedly connected to a second discharge pipe (406), and one end of the second discharge pipe (406) is connected to the foaming ejector.

6. The fully automatic polyurethane foaming machine for pipe insulation production according to claim 1, characterized in that: Both sides of the top of the heat-insulating storage tank (1) are fixedly connected with a feed pipe (5).

Images