A heat collection tower circulating pump connecting mechanism

Abstract

The utility model provides a kind of heat collection tower circulating pump connecting mechanism, including the mounting seat being arranged in tower body inside;The mounting seat is equipped with connecting frame, and the connecting frame is used to connect circulating pump;Two connecting ends of circulating pump are equipped with connecting pipe;One connecting pipe is connected with heat collector of tower body by first delivery pipe, and another connecting pipe is connected with jar body by second delivery pipe;The bottom of mounting seat is equipped with connecting groove, and the top of mounting seat is equipped with vertical board;The inside of connecting groove and the top of vertical board are equipped with pipe frame;First delivery pipe and second delivery pipe are connected with pipe frame.The utility model uses double spring+pad block's shock absorbing structure, cooperate with the flexible hose of connecting pipe, compared with traditional rigidity connection, can reduce the vibration transmission rate of circulating pump, effectively protect heat collector, salt storage jar and other equipment, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of heat collection tower circulating pump connection technology, and specifically to a heat collection tower circulating pump connection mechanism. Background Technology

[0002] Tower solar thermal power generation is a method of power generation that uses heliostat arrays to concentrate sunlight onto a solar collector tower and then generates electricity through the solar collector tower. The principle is to concentrate sunlight onto the collector on the solar tower through a group of heliostats, thereby generating a high-temperature fluid-molten salt that heats the collector. The heated molten salt returns to the solar tower and passes through a heat exchanger to generate hot steam or high-temperature gas. Finally, the hot steam or high-temperature gas drives the steam turbine generator set to generate electricity.

[0003] Meanwhile, in a tower-type solar thermal power generation system, the heat absorption tower includes a collector, a heat exchanger, a salt storage tank, and a circulation pump.

[0004] In use, the solar collector is used to receive and concentrate sunlight to directly heat the molten salt flowing through it.

[0005] Molten salt acts as a carrier of heat energy, absorbing light energy and converting it into heat energy in the solar collector.

[0006] Salt storage tanks are used to store molten salt and ensure a stable supply of heat energy.

[0007] The circulating pump is used to drive the molten salt to circulate in the system's pipelines, pumping the molten salt from the salt storage tank to the solar collector for heating, and then sending the heated molten salt back to the heat exchanger.

[0008] However, in actual use, the circulation pump will generate severe vibrations during operation. These vibrations will directly affect the pipes it is connected to, and then the vibrations will be transmitted along the pipes. This will not only affect the stability of the pipe connections, but also affect the stable use of structures such as solar collectors, reduce their service life, and cause inconvenience to users. Utility Model Content

[0009] The main purpose of this utility model is to provide a connection mechanism for a circulating pump in a heat collection tower, which solves the problem that the intense vibrations generated by the circulating pump in the heat collection tower are easily transmitted along the pipes.

[0010] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A heat collection tower circulating pump connection mechanism includes a mounting base disposed inside the tower body; The mounting base is equipped with a connecting bracket for connecting a circulating pump; Both ends of the circulating pump are equipped with connecting pipes; One of the connecting pipes is connected to the solar collector in the tower body through the first conveying pipe, and the other connecting pipe is connected to the tank body through the second conveying pipe.

[0011] In a preferred embodiment, the bottom of the mounting base is provided with a connecting groove, and the top of the mounting base is provided with a vertical plate; Pipe supports are provided inside the connecting groove and on the top of the vertical plate; Both the first and second delivery pipes are connected to the pipe rack.

[0012] In the preferred embodiment, the pipe rack includes a fixing rod; One end of the fixing rod is fixedly connected to the connecting groove or vertical plate; the other end of the fixing rod is provided with a sleeve. The sleeve is fitted onto the outside of the first or second conveying pipe; A buffer sleeve is installed inside the tube.

[0013] In a preferred embodiment, the inner side of the mounting base is provided with a through hole, through which the connecting pipe passes; There is a gap between the connecting pipe and the wall of the through hole.

[0014] In a preferred embodiment, the connecting pipe includes a first fixing pipe and a second fixing pipe; The first fixed pipe and the second fixed pipe are respectively connected to the two connection ends of the circulating pump; The first fixed tube is connected to the first delivery tube via the first flexible tube; The second fixed tube is connected to the second delivery tube via the second flexible tube.

[0015] In a preferred embodiment, the connecting frame includes a base plate disposed on top of the mounting base, and the bottom of the base plate is provided with several pads; The circulating pump is located above the base plate.

[0016] In a preferred embodiment, the top of the base plate is provided with several shock-absorbing springs, and the top of the shock-absorbing springs is provided with a mounting plate. The circulation pump is located on top of the mounting plate.

[0017] In a preferred embodiment, the top of the base plate is provided with several guide rods, which pass through the shock-absorbing springs and the mounting plate; Several shock-absorbing springs are also provided on the top of the mounting plate; The shock-absorbing spring is sleeved on the outside of the guide rod; The top of the guide rod is equipped with a limiting plate, which is located on top of the shock-absorbing spring above.

[0018] In a preferred embodiment, the bottom of the base plate is provided with several plug-in rods, which are inserted into the interior of the mounting base.

[0019] In the preferred embodiment, the mounting base has several insertion holes inside; The connector rod is located inside the connector hole; A gasket is provided between the plug rod and the plug hole.

[0020] This utility model provides a connection mechanism for a circulating pump in a heat collection tower. By adopting the above solution, the following beneficial effects are achieved: The shock-absorbing structure, consisting of double springs and pads, combined with flexible hoses for connecting pipes, reduces the vibration transmission rate of the circulating pump compared to traditional rigid connections. This effectively protects equipment such as solar collectors and salt storage tanks, extending their service life.

[0021] The pipe rack provides multi-point stable support for the delivery pipe, and the buffer sleeve absorbs pipe vibration. With the use of flexible hoses, vibration is not easily transmitted along the pipe, thereby reducing the impact of circulating pump vibration on the pipe and ensuring the stability of pipe connection and use. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the connecting frame of this utility model; Figure 3 This is a structural schematic diagram of the pipe rack of this utility model; Figure 4 This is a structural schematic diagram of the limiting plate of this utility model; Figure 5 yes Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0023] In the picture: Tower body 1, tank body 101, first conveying pipe 102, second conveying pipe 103; Mounting base 2, connecting groove 201, vertical plate 202; Connecting frame 3, base plate 301, pad block 302, mounting plate 303, guide rod 304, shock absorber spring 305, limit plate 306, plug rod 307, and pad sleeve 308; Circulating pump 4; Connecting pipe 5; First fixed tube 501, first flexible tube 502, second fixed tube 503, second flexible tube 504; Pipe rack 6, fixing rod 601, pipe sleeve 602, buffer sleeve 603. Detailed Implementation

[0024] In the embodiments of this application, such as Figure 1 , 2 As shown in Figures 3, 4, and 5, a heat collection tower circulating pump connection mechanism includes a mounting base 2, a connecting frame 3, a circulating pump 4, a connecting pipe 5, and a pipe support 6. Specifically: Tower body 1 is the main body of the heat collection tower, which is generally reinforced concrete or steel structure; the inner side of tower body 1 has a pre-set installation surface; Tank 101 is a salt storage tank, preferably made of 316L stainless steel, which is resistant to molten salt corrosion. Both the first conveying pipe 102 and the second conveying pipe 103 are 316L stainless steel insulated pipes, and preferably have an external insulation layer, which is made of aluminum silicate fiber. The first conveying pipe 102 and the second conveying pipe 103 are respectively connected to the solar collector and the salt storage tank of the tower body 1 for conveying molten salt; for example, the first conveying pipe 102 is connected to the solar collector and the second conveying pipe 103 is connected to the salt storage tank.

[0025] Mounting base 2 serves as the fixed foundation for the mechanism. It is preferably made of Q345B steel plate and welded together. It is fixed to the inner mounting surface of tower body 1 by expansion bolts.

[0026] The bottom of the mounting base 2 is provided with a connecting groove 201, which is a rectangular groove. A vertical plate 202 is welded to the top of the mounting base 2. The height of the vertical plate 202 is higher than the height of the circulating pump 4. Both the connecting groove 201 and the vertical plate 202 are provided with pipe supports 6. A through hole is provided on the inner side of the mounting base 2, and one of the connecting pipes 5 connected to the pipeline connection end of the circulating pump 4 passes through the through hole; A 5-10mm gap is reserved between the wall of the through hole and the connecting pipe to prevent the connecting pipe 5 from vibrating and colliding rigidly with the mounting base 2; The top of the mounting base 2 has 4-6 insertion holes for connecting the insertion rod 307 of the connecting bracket 3; A pad 308 is provided inside the insertion hole. The pad 308 is preferably made of polytetrafluoroethylene with a thickness of 5-10mm. It can play a role in buffering and positioning, and prevent the insertion rod 307 from making rigid contact with the mounting base 2.

[0027] Connector 3 enables vibration-damping installation of the circulating pump 4, blocking vibration transmission. Specifically: The connecting frame 3 includes a base plate 301, which is a rectangular steel plate; Four to six pads 302 are bonded to the bottom of the base plate 301. The pads 302 are preferably made of polyurethane with a thickness of 20-50mm, and are used to buffer the vibration generated by the circulating pump 4. The bottom of the base plate 301 is welded with 4-6 plug rods 307. The plug rods 307 are adapted to the plug holes. The plug rods 307 are inserted into the plug holes of the mounting base 2 and positioned by the pads 308. Four guide rods 304 are welded to the top of the base plate 301. Shock-absorbing springs 305 are sleeved on the outside of the guide rods 304. The material of the shock-absorbing springs 305 is preferably Inconel 718. The guide rod 304 passes through the mounting plate 303. The top of the mounting plate 303 is also equipped with a shock-absorbing spring 305 that is sleeved on the outside of the guide rod 304, forming a "double spring" shock-absorbing structure to ensure the shock absorption effect. A limiting plate 306 is welded to the top of the guide rod 304 to limit the position of the shock absorber spring 305; the shock absorber spring 305 is in a compressed state.

[0028] The circulating pump 4 is fixed to the top of the mounting plate 303 by bolts, and the double spring structure can reduce the vibration transmission rate of the circulating pump.

[0029] The damping spring 305 only serves to alleviate the severe vibration of the circulating pump 4 and slow down the transmission of vibration, rather than directly blocking or stopping the vibration generated by the circulating pump 4, thus achieving the effect required by this application.

[0030] The connecting pipe 5 is used to achieve a flexible connection between the circulating pump 4 and the first delivery pipe 102 and the second delivery pipe 103, thereby blocking the transmission of vibration along the pipe. Specifically: The first fixed pipe 501 and the second fixed pipe 503 are stainless steel pipes, and one end is fixedly connected to the inlet and outlet ends of the circulating pump 4 through a flange. The flange sealing surface is made of metal spiral wound gasket to ensure that there is no leakage of molten salt. The first hose 502 and the second hose 504 are preferably fluororubber corrugated hoses, preferably DN50-DN100, and made of fluororubber. The first flexible hose 502 is connected to the first fixed pipe 501 and the first delivery pipe 102 respectively through flanges at both ends; The two ends of the second flexible hose 504 are connected to the second fixed pipe 503 and the second delivery pipe 103 respectively via flanges.

[0031] The first hose 502 and the second hose 504 can absorb the pipe displacement caused by the vibration of the circulating pump 4, avoid rigid tension, and ensure overall stability.

[0032] Pipe support 6 is used to stably support the first delivery pipe 102 and the second delivery pipe 103, and can prevent the pipes from shifting due to vibration. Specifically: The pipe rack 6 includes a fixing rod 601, which is preferably a round steel rod. One end of the fixing rod is fixed to the side of the connecting groove 201 or the top of the vertical plate 202 by welding or bolting, and the other end is welded to the pipe sleeve 602.

[0033] The sleeve 602 consists of two semi-circular sleeves, and the inner diameter of the sleeve 602 is adapted to the outer diameter of the first conveying pipe 102 and the second conveying pipe 103. Two semi-circular sleeves are combined to form sleeve 602, and the two semi-circular sleeves are connected by connecting lugs and bolts and nuts.

[0034] A buffer sleeve 603 is attached to the inside of the sleeve 602. The buffer sleeve 603 is preferably made of silicone. The buffer sleeve 603 can absorb the vibration of the pipe and reduce the rigid collision between the first delivery pipe 102 and the second delivery pipe 103 and the sleeve 602.

[0035] The pipe rack 6 is also located inside the tower body 1 to further stabilize the connection between the first conveying pipe 102 or the second conveying pipe 103.

[0036] When using it, the following steps are included: Step 1: Check the flatness of the inner mounting surface of tower body 1 and clean the surface dust and oil stains; Prepare all components and tools, and verify the component models and their compatibility with the working conditions.

[0037] Step 2: Attach the mounting base 2 to the tower body mounting surface, mark the expansion bolt hole positions, drill the holes and insert the expansion bolts, and tighten the bolts; complete the fixing of the mounting base 2.

[0038] Insert the pad 308 into the insertion hole of the mounting base 2, insert the insertion rod 307 of the connecting bracket 3 into the insertion hole, and make the pad 302 fit against the top of the mounting base 2. The circulating pump 4 is fixed to the top of the mounting plate 303 with bolts. Then, the first fixed pipe 501 and the second fixed pipe 503 are connected to the flanges at the inlet and outlet ends of the circulating pump 4. Metal spiral wound gaskets are installed and the flange bolts are tightened. The first hose 502 and the second hose 504 are respectively connected to the first fixed pipe 501, the second fixed pipe 503 and the first delivery pipe 102, the second delivery pipe 103. High-temperature sealant is applied to the flange connection to ensure a seal.

[0039] The fixing rod 601 of the pipe rack 6 is welded or bolted to the connecting groove 201 and the vertical plate 202; The sleeve 602 wraps around the first conveying pipe 102 and the second conveying pipe 103. The inner buffer sleeve 603 fits against the outer wall of the first conveying pipe 102 and the second conveying pipe 103. The sleeve 602 is spliced ​​with bolts to ensure that the first conveying pipe 102 and the second conveying pipe 103 are not loose.

[0040] Finally, you can use it.

[0041] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A connecting mechanism for a circulating pump in a solar collector tower, characterized in that: Including the mounting base (2) located inside the tower body (1); The mounting base (2) is provided with a connecting bracket (3), which is used to connect the circulating pump (4); Both ends of the circulating pump (4) are equipped with connecting pipes (5); One of the connecting pipes (5) is connected to the collector of the tower body (1) through the first conveying pipe (102), and the other connecting pipe (5) is connected to the tank body (101) through the second conveying pipe (103). The mounting base (2) is provided with a pipe rack (6), and the first conveying pipe (102) and the second conveying pipe (103) are both connected to the pipe rack (6); A buffer sleeve (603) is provided inside the sleeve (602); Two connecting pipes (5) are connected to the first delivery pipe (102) and the second delivery pipe (103) via hoses; The connecting frame (3) includes a base plate (301) located on top of the mounting base (2), and a number of pads (302) are provided at the bottom of the base plate (301). The top of the base plate (301) is provided with several shock-absorbing springs (305), and the top of the shock-absorbing springs (305) is provided with a mounting plate (303). The circulating pump (4) is located on top of the mounting plate (303); The top of the base plate (301) is provided with several guide rods (304), which pass through the shock-absorbing spring (305) and the mounting plate (303). The top of the mounting plate (303) is also provided with several shock-absorbing springs (305); The shock-absorbing spring (305) is sleeved on the outside of the guide rod (304); The top of the guide rod (304) is provided with a limiting plate (306), which is located on top of the shock-absorbing spring (305) above.

2. The solar collector circulating pump connection mechanism according to claim 1, characterized in that: The bottom of the mounting base (2) is provided with a connecting groove (201), and the top of the mounting base (2) is provided with a vertical plate (202). Tube racks (6) are provided inside the connecting groove (201) and on the top of the vertical plate (202).

3. The connecting mechanism for a heat collection tower circulating pump according to claim 2, characterized in that: The pipe rack (6) includes a fixing rod (601); One end of the fixing rod (601) is fixedly connected to the connecting groove (201) or the vertical plate (202); the other end of the fixing rod (601) is provided with a sleeve (602). The sleeve (602) is fitted onto the outside of the first delivery pipe (102) or the second delivery pipe (103).

4. The connecting mechanism for a heat collection tower circulating pump according to claim 1, characterized in that: The mounting base (2) has a through hole on its inner side, through which the connecting pipe (5) passes; There is a gap between the connecting pipe (5) and the wall of the through hole.

5. The connecting mechanism for a heat collection tower circulating pump according to claim 1, characterized in that: The connecting pipe (5) includes a first fixing pipe (501) and a second fixing pipe (503); The first fixed pipe (501) and the second fixed pipe (503) are respectively connected to the two connecting ends of the circulating pump (4); The first fixed tube (501) is connected to the first delivery tube (102) through the first flexible tube (502); The second fixed tube (503) is connected to the second delivery tube (103) via the second flexible tube (504).

6. The connecting mechanism for a heat collection tower circulating pump according to claim 1, characterized in that: The bottom of the base plate (301) is provided with several plug rods (307), which are plugged into the interior of the mounting base (2).

7. The connecting mechanism for a heat collection tower circulating pump according to claim 1, characterized in that: The mounting base (2) has several insertion holes inside; The connector (307) is located inside the connector hole; A gasket (308) is provided between the plug rod (307) and the plug hole.

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