Water-cooling resistor convenient to stack and arrange

Abstract

The utility model relates to the technical field of resistors, in particular to a water-cooling resistor convenient to stack and arrange, which comprises a support, the support is provided with a plurality of supporting layers which are longitudinally arranged at intervals, each supporting layer is detachably provided with a resistor module, each resistor module comprises a cubic box body and a plurality of resistor tubes, the box body forms a water-cooling cavity, and the water-cooling cavity is communicated with the water-cooling cavity. A water inlet and a water outlet which are communicated with the water cooling cavity are formed in the side wall of the box body; annular lock seats are fixed on two opposite side plates of the box body; a plurality of resistance tubes penetrate through the lock seats of the two opposite side plates of the box body in a clearance fit manner; each lock seat is in threaded fit with a lock cover, and a first sealing ring is arranged between each lock cover and the corresponding lock seat. The water inlets of the resistor modules converge and are connected with a water inlet manifold, the water outlets of the resistor modules converge and are connected with a water outlet manifold, and the water inlet manifold and / or the water outlet manifold are / is provided with flowmeters. Compared with the prior art, the device is small in size, large in power, capable of stacking multiple modules, detachable and replaceable in single resistance tube, and convenient for later maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of resistor, specifically relates to a water -cooled resistance convenient to layering arrangement. BACKGROUND

[0002] When the power generated by the steam turbine generator set is not connected to the grid or the impact on the grid is small when starting, an energy consumption device needs to be configured to balance the power generated by the steam turbine generator set to ensure stable operation of the power system. The existing energy consumption devices that can meet the requirements include water resistance, air-cooled or water-cooled resistance and other forms. Considering the power supply characteristics, use environment, equipment space, supporting facilities, noise, maintenance, economy and other aspects, the water-cooled dry resistance and the direct current automatic load cabinet are set to dissipate the power of the steam turbine generator set, which has good advantages.

[0003] The resistance box is a combination of several fixed value precision resistors, which are installed in the same box and change their resistance values through a conversion device. The resistance box is accurate when used for a short period of time, but once used for a long time, the resistance will heat up. In order to prevent dust, the resistance box is mostly sealed, and its heat dissipation effect is poor, which will cause the resistance to continue to heat up and cause the resistance value to be inaccurate.

[0004] Later, a water-cooled resistance box with high heat dissipation function was disclosed in Chinese patent document No. CN213988451U, which includes a resistance box body, an adjusting knob is rotatably installed at the upper end of the resistance box body, a mark plaque is fixedly installed at the front end of the adjusting knob, a first terminal post is fixedly installed at the left side of the rear side of the upper end of the resistance box body, a second terminal post is fixedly installed at the right side of the rear side of the upper end of the resistance box body, the first terminal post and the second terminal post are symmetrically distributed on the rear side of the upper end of the resistance box body, a water storage tank is fixedly installed at the right end of the resistance box body, and a water inlet is fixedly installed at the upper end of the water storage tank. The water-cooled resistance box with high heat dissipation function uses water cooling to cool the resistance elements inside the resistance box, avoiding the phenomenon of inaccurate resistance value caused by heating of the resistance after long-time power-on, thereby greatly improving the accuracy of the resistance box.

[0005] The resistance elements of the above resistance box are integrally fixed in the box body, and when a local resistance fails, the entire resistance needs to be replaced. In addition, the existing technology also uses a cylindrical flange, which has low power density and cannot achieve the power size of a square module under the same volume. The metal tube resistance is fixed and sealed by welding, which cannot be disassembled, and if one of the resistances is damaged, the entire resistance unit needs to be replaced, which has low maintainability and high cost. UTILITY MODEL CONTENTS

[0006] The utility model provides a water -cooled resistance convenient for layering arrangement.

[0007] To realize above -mentioned purpose, the utility model provides following technical scheme:

[0008] Provide a water -cooled resistance convenient for layering arrangement, including support, support is provided with the longitudinal interval arrangement of multiple support layer, each support layer can detachably place with resistance module, each resistance module includes the box of square body and multiple resistance tube, and the box forms water -cooled cavity, and the lateral wall of the box is provided with the water inlet and the water outlet that communicate water -cooled cavity;The opposite two side plates of the box are provided with multiple mounting holes respectively, and the outside of each mounting hole is fixed with annular lock seat, and multiple resistance tubes are in clearance fit and pass through the lock seat of the opposite two side plates of the box, so that the resistance tube is supported in water -cooled cavity and both ends are out of the box;Each lock seat is screwed with lock cover, and the resistance tube passes through the lock cover, and a first sealing ring is arranged between the lock cover and the lock seat, and the first sealing ring is extruded to fit the outer wall of the resistance tube by tightening the lock cover, so as to seal the resistance tube. The water inlet of multiple resistance modules is connected with the water inlet main pipe in confluence, and the water outlet of multiple resistance modules is connected with the water outlet main pipe in confluence, and the water inlet main pipe and / or the water outlet main pipe are provided with flow meter.

[0009] Specifically, the end face of the lock seat is provided with a first positioning groove for the first sealing ring to be embedded, and the inner wall of the lock seat is further provided with a second positioning groove, and the second positioning groove is provided with a second sealing ring that fits the outer wall of the resistance tube.

[0010] Specifically, the lock seat and the side plate of the box are sealed and welded to each other.

[0011] Specifically, multiple partitions are arranged in the box, and the multiple partitions are arranged in parallel along the length direction of the resistance tube, each partition is provided with a clearance hole for the resistance tube to pass through, and the multiple partitions enclose a curved water cooling channel in the water-cooled cavity, and the water inlet and the water outlet are connected to the two ends of the water cooling channel respectively.

[0012] Specifically, the box includes a U-shaped frame, a top plate sealing the top opening of the frame, and end plates sealing both ends of the frame, the frame, the top plate and the end plates are sheet metal parts, and the mounting holes and the lock seats are arranged on the end plates.

[0013] Specifically, the top of the partition is provided with multiple positioning protrusions, and the top plate is provided with multiple positioning holes, and the positioning protrusions are embedded in the positioning holes.

[0014] Specifically, the end plate is provided with a horizontal reinforcing beam and a vertical reinforcing beam arranged perpendicularly.

[0015] Specifically, the outer side wall of the box is provided with lifting lugs, and the outer bottom of the box is provided with a support leg.

[0016] Specific, located at the bottom of the box is provided with a normally closed state of the sewage pipe, sewage pipe is provided with a sewage valve.

[0017] Specific, between the water inlet pipe and the water inlet, between the water outlet pipe and the water outlet via flange connection.

[0018] The utility model discloses beneficial effect has:

[0019] The utility model discloses a water -cooled resistance of convenient layering arrangement compares with prior art, and resistance tube adopts the form of two -end locking fixed, if part resistance tube appears abnormal damage in the use process, can be inquired and the corresponding resistance tube is replaced, does not need to replace the whole module resistance, and maintenance cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structure schematic diagram of the water -cooled resistance of convenient layering arrangement in the embodiment.

[0021] Fig. 2 It is a structure schematic diagram of the resistance module in the embodiment.

[0022] Fig. 3 It is the schematic diagram of the resistance module in the embodiment behind hiding roof.

[0023] Fig. 4 It is the exploded view of the resistance module in the embodiment.

[0024] Fig. 5 It is the sectional view of the resistance module in the embodiment.

[0025] Fig. 6 It is Fig. 5 The enlarged view of the encircling position.

[0026] REFERENCE NUMERALS:

[0027] Box 1, water inlet 11, water outlet 12, mounting hole 13, frame 14, top plate 15, positioning hole 151, end plate 16, lifting lug 17, foot 18, sewage pipe 19, sewage valve 110, pressure relief pipe 111, exhaust valve 112;

[0028] Resistance tube 2;

[0029] Lock seat 3, first positioning groove 31, second positioning groove 32;

[0030] Lock cover 4, first sealing ring 5, second sealing ring 6;

[0031] Partition 7, let go of hole 71, positioning protrusion 72;

[0032] Horizontal stiffener 8, vertical stiffener 9;

[0033] Bracket 100, support layer 101, resistor module 200, inlet main pipe 201, outlet main pipe 202, flow meter 203, flange 204. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] This embodiment provides a water-cooled resistor that is easy to stack, such as... Fig. 1 to Fig. 6 As shown, the device includes a bracket 100, which has multiple longitudinally spaced support layers 101. Each support layer 101 holds a resistor module 200 detachably via screws. The bracket 100 is constructed of welded square steel. The support layers 101 are equipped with guide slides for the resistor modules to slide into. Each resistor module 200 includes a cuboid housing 1 and multiple resistor tubes 2. The housing 1 forms a water-cooling cavity, and the side walls of the housing 1 have inlet 11 and outlet 12 communicating with the water-cooling cavity. The opposing side plates of the housing 1 each have multiple mounting holes 13, and annular locking seats 3 are fixed to the outside of each mounting hole 13. The multiple resistor tubes 2 pass through the locking seats 3 of the opposing side plates of the housing 1 with a gap fit, so that the resistor tubes 2 are mounted in the water-cooling cavity and their ends protrude outside the housing 1. Each lock seat 3 is threaded with a lock cover 4. The resistor tube 2 passes through the lock cover 4. A first sealing ring 5 is provided between the lock cover 4 and the lock seat 3. Tightening the lock cover 4 compresses the first sealing ring 5 to press against the outer wall of the resistor tube 2, thereby sealing and locking the resistor tube 2. The inlets 11 of multiple resistor modules 200 are connected to a main inlet pipe 201, and the outlets 12 of multiple resistor modules 200 are connected to a main outlet pipe 202. Flow meters 203 are installed on the main inlet pipe 201 and / or the main outlet pipe 202. Fig. 1 In this arrangement, four resistor modules 200 are stacked longitudinally. The inlet 11 of each of these four resistor modules 200 is connected to a main inlet pipe 201, and the outlet 12 of each of these four resistor modules 200 is connected to a main outlet pipe 202. This main outlet pipe then serves as the main inlet pipe for the next stack of four resistor modules, and so on in series. The main inlet pipe 201 and the inlet 11, and the main outlet pipe 202 and the outlet 12 are connected via flanges 204.

[0036] Specifically, the end face of the lock seat 3 is provided with a first positioning groove 31 for embedding the first sealing ring 5, and the inner wall of the lock seat 3 is further provided with a second positioning groove 32, and the second positioning groove 32 is provided with a second sealing ring 6 that is in interference fit with the outer wall of the resistance tube 2. The unique double sealing groove design is adopted, and the double sealing grooves are placed with corresponding types of silicone rubber O-shaped sealing rings. The first sealing ring 5 is in interference fit with the resistance tube 2, and the second sealing ring 6 is in slight gap fit with the resistance tube 2. After the first sealing ring 5 is installed, the lock cover 4 is tightened. The inner wall surface of the lock cover 4 is smooth and flat, and can extrude the first sealing ring 5 to make it tightly adhere to the outer wall of the metal tube resistance, so as to meet the high water pressure sealing requirement.

[0037] Specifically, the lock seat 3 and the side plate of the box body 1 are mutually sealed and welded and fixed.

[0038] Specifically, a plurality of partitions 7 are arranged in the box body 1, and the plurality of partitions 7 are arranged in parallel and separated along the length direction of the resistance tube 2. Each partition 7 is provided with a gap hole 71 for the resistance tube 2 to pass through. The plurality of partitions 7 enclose an S-shaped curved water cooling channel for the water cooling cavity. The water inlet 11 and the water outlet 12 are respectively connected to two end portions of the water cooling channel. The water inlet 11 and the water outlet 12 can be arranged on the same side of the box body 1, or can be arranged on different sides in actual use. The module adopts a square water tank design. Compared with a cylindrical water tank, the resistance arrangement density is high, and the module is easy to stack. The box body 1 has a small volume, and the module can have a larger power. The S-shaped water channel design is adopted inside the water tank, the mechanical principle is fully utilized, the water pressure is effectively dispersed, and the bearing capacity of the water tank is greatly improved.

[0039] Specifically, the box body 1 includes a U-shaped frame 14, a top plate 15 sealing the top opening of the frame 14, and end plates 16 sealing both ends of the frame 14. The frame 14, the top plate 15, and the end plates 16 are all sheet metal parts. The mounting hole 13 and the lock seat 3 are arranged on the end plate 16.

[0040] Specifically, the top of the partition 7 is provided with a plurality of positioning protrusions 72, and the top plate 15 is provided with a plurality of positioning holes 151. The positioning protrusions 72 are embedded in the positioning holes 151.

[0041] Specifically, the end plate 16 is provided with a horizontal reinforcing beam 8 and a vertical reinforcing beam 9 arranged perpendicularly to each other, so as to increase the strength and avoid deformation of the end plate 16.

[0042] Specifically, the outer side wall of the box body 1 is provided with lifting lugs 17 for lifting. The outer side bottom of the box body 1 is provided with supporting feet 18 for supporting in the use environment.

[0043] Specifically, a blowdown pipe 19 in a normally closed state is arranged at the bottom of the box body 1. The blowdown pipe 19 is provided with a blowdown valve 110. After being used for a period of time, the blowdown valve 110 is opened to discharge the cooling water and dirt in the box body 1.

[0044] Specifically, a pressure relief pipe 111 communicating with the water cooling cavity is arranged at the top of the box body 1, and the pressure relief pipe 111 is provided with an exhaust valve 112. When the water tank is supplied with water, no cavity is formed in the water tank, and the resistance is greatly reduced due to the lack of water immersion. During the operation of the water supply process, the air in the water tank is easily discharged, and no cavity is formed, which ensures that the resistance is in full contact with the water, improves the reliability and safety of the resistance module.

[0045] The resistance in the embodiment is mainly used in the detection of the generator set load, and can be adapted to various medium voltage systems for a long time. The resistance tube 2 is fixed in a form of locking at both ends. If some resistance tubes 2 are abnormally damaged during use, the resistance tubes 2 can be checked and replaced, without the need of replacing the whole module resistance, so that the maintenance cost is greatly reduced. The single resistance tube 2 is replaced, which brings great convenience to the later maintenance and saves the cost of customers.

[0046] In the description of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings can be arranged and designed in various different configurations.

[0047] Therefore, the above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0048] In the description of the utility model, it should be pointed out that the terms "middle", "upper", "lower", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "arrange", "link", "connect" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected. Can be mechanical connection, can also be electrical connection. Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A water-cooled resistor that is easy to stack, characterized in that: The system includes a bracket (100) with multiple longitudinally spaced support layers (101). Each support layer (101) has a resistor module (200) detachably placed on it. Each resistor module (200) includes a cuboid housing (1) and multiple resistor tubes (2). The housing (1) forms a water-cooling cavity. The side wall of the housing (1) has an inlet (11) and an outlet (12) that connect to the water-cooling cavity. The two opposing side plates of the housing (1) are provided with multiple mounting holes (13). An annular locking seat (3) is fixed to the outside of each mounting hole (13). The multiple resistor tubes (2) pass through the locking seats (3) of the opposing side plates of the housing (1) with a gap fit, thereby enabling the resistor module to pass through the water-cooling cavity. The resistance tube (2) is mounted in the water-cooling chamber and extends out of the box (1) at both ends; each lock seat (3) is threaded with a lock cover (4), the resistance tube (2) passes through the lock cover (4), a first sealing ring (5) is provided between the lock cover (4) and the lock seat (3), tightening the lock cover (4) compresses the first sealing ring (5) to press against the outer wall of the resistance tube (2), thereby sealing and locking the resistance tube (2); the inlets (11) of multiple resistance modules (200) are connected to the main inlet pipe (201), the outlets (12) of multiple resistance modules (200) are connected to the main outlet pipe (202), and the main inlet pipe (201) and / or the main outlet pipe (202) are equipped with flow meters (203).

2. The water-cooled resistor according to claim 1, which is easy to stack, is characterized in that: The end face of the lock seat (3) is provided with a first positioning groove (31) for the first sealing ring (5) to be embedded. The inner wall of the lock seat (3) is also provided with a second positioning groove (32). The second positioning groove (32) is provided with a second sealing ring (6) on the outer wall of the interference fit resistor tube (2).

3. The water-cooled resistor according to claim 1, which is easy to stack, is characterized in that: The lock seat (3) and the side plate of the box body (1) are sealed and welded together.

4. A water-cooled resistor that is easy to stack according to claim 1, characterized in that: Multiple partitions (7) are provided inside the housing (1). The multiple partitions (7) are arranged side by side along the length of the resistor tube (2). Each partition (7) is provided with a clearance hole (71) for the resistor tube (2) to pass through. The multiple partitions (7) form a curved water cooling channel around the water cooling cavity. The water inlet (11) and the water outlet (12) are respectively connected to the two ends of the water cooling channel.

5. A water-cooled resistor that is easy to stack according to claim 4, characterized in that: The housing (1) includes a U-shaped frame (14), a top plate (15) that seals the top opening of the frame (14), and end plates (16) that seal both ends of the frame (14). The frame (14), top plate (15), and end plates (16) are all sheet metal parts. Mounting holes (13) and lock seats (3) are provided on the end plates (16).

6. A water-cooled resistor that is easy to stack according to claim 5, characterized in that: The top of the partition (7) is provided with multiple positioning protrusions (72), and the top plate (15) is provided with multiple positioning holes (151). The positioning protrusions (72) are embedded in the positioning holes (151).

7. A water-cooled resistor that is easy to stack according to claim 5, characterized in that: The end plate (16) is provided with horizontal reinforcing beams (8) and longitudinal reinforcing beams (9) arranged perpendicularly to each other.

8. A water-cooled resistor that is easy to stack according to claim 1, characterized in that: The outer side wall of the box (1) is provided with lifting lugs (17), and the bottom of the outer side of the box (1) is provided with support legs (18).

9. A water-cooled resistor that is easy to stack according to claim 1, characterized in that: A normally closed drain pipe (19) is provided at the bottom of the box (1), and a drain valve (110) is provided on the drain pipe (19).

10. A water-cooled resistor that is easy to stack according to claim 1, characterized in that: The main inlet pipe (201) is connected to the inlet (11), and the main outlet pipe (202) is connected to the outlet (12) via a flange (204).

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