Low-temperature-resistant hydraulic pump station of wind turbine generator

Abstract

The utility model provides a low-temperature-resistant hydraulic pump station of a wind turbine generator, and relates to the technical field of wind power generation. The low-temperature-resistant hydraulic pump station of the wind turbine generator comprises an oil tank, a motor, an oil pump, a valve body and a circulating heat preservation device. The oil tank comprises an inner tank body, an outer tank body and a tank cover; the inner box body is fixedly arranged in the outer box body, a circulating cavity is formed between the inner box body and the outer box body, and the box cover is connected with the inner box body and the outer box body; the motor is fixedly installed on the box cover, the oil pump is fixedly installed on the box cover and is in transmission connection with the motor, one end of the oil pump is connected with the inner box body, and the other end of the oil pump is connected with the valve body. The circulating heat preservation device comprises a heating base, a circulating box and a circulating pump. The low-temperature-resistant hydraulic pump station of the wind turbine generator solves the technical problems that an existing hydraulic pump station of the wind turbine generator only adopts low-temperature hydraulic oil to correspond to a low-temperature working environment, and the low-temperature resistance is poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wind power generation, especially to a low-temperature resistant hydraulic pump station of wind turbine generator system. BACKGROUND

[0002] The hydraulic pump station of wind turbine generator system is an important component of the wind turbine generator system, which provides hydraulic power for various operations of the wind turbine.

[0003] In winter, the temperature in some wind power generation areas of China (northeastern, northern and northwestern regions of China) is relatively low, sometimes reaching -30 DEG C. At this temperature, the viscosity of hydraulic oil increases, and the fluidity becomes poor, which may cause the hydraulic components in the hydraulic pump station to be unable to be fully supplied with oil, thereby affecting the normal operation of the wind turbine generator system. The existing hydraulic pump station of wind turbine generator system mainly comprises a motor, a hydraulic pump, an oil tank, a filter, a cooler, a control valve and other components, and only uses low-temperature hydraulic oil to correspond to the low-temperature working environment, and the low-temperature resistance is poor.

[0004] The present inventor has at least found the following problems in the process of implementing the embodiment:

[0005] The existing hydraulic pump station of wind turbine generator system only uses low-temperature hydraulic oil to correspond to the low-temperature working environment, and the low-temperature resistance is poor. INVENTION CONTENTS

[0006] The utility model discloses a low-temperature resistant hydraulic pump station of wind turbine generator system, which solves the technical problem of the existing hydraulic pump station of wind turbine generator system, which only uses low-temperature hydraulic oil to correspond to the low-temperature working environment, and the low-temperature resistance is poor.

[0007] INVENTION SCHEME

[0008] The utility model provides a low-temperature resistant hydraulic pump station of wind turbine generator system, including oil tank, motor, oil pump, valve body and circulating heat preservation device, the oil tank includes inner box, outer box and tank cover, the inner box is fixedly arranged in the outer box, and the circulating cavity is arranged between the inner box and the outer box, and the tank cover is connected with the inner box and the outer box respectively, the motor is fixedly installed on the tank cover, the oil pump is fixedly installed on the tank cover, and the oil pump is drivingly connected with the motor, one end of the oil pump is connected with the inner box, and the other end is connected with the valve body, the circulating heat preservation device includes heating seat, circulating tank and circulating pump, the heating seat is arranged on one side of the outer box, the circulating tank is connected with the heating seat, the circulating pump is installed on the outer box, and one end of the circulating pump is communicated with the circulating tank, and the other end is arranged in the outer box.

[0009] Further, the outer box is provided with a heat preservation groove, and a heat preservation layer is arranged in the heat preservation groove.

[0010] Further, the circulating cavity is connected with a sealing frame in an interference fit, and the sealing frame is located at the top of the circulating cavity.

[0011] Further, the tank cover is connected with a first electronic thermometer, and the circulating tank is connected with a second electronic thermometer.

[0012] Further, the circulating tank and the outer tank body are provided with a valve.

[0013] Further, the tank cover is detachably provided with a heat preservation cover.

[0014] Beneficial effects:

[0015] The utility model provides a kind of wind turbine low temperature resistant hydraulic pump station, when using, fill in anti-freezing liquid in circulating tank, at this time anti-freezing liquid enters circulating cavity simultaneously, start heating seat, after heating seat heats the anti-freezing liquid in circulating tank, start circulating pump, make the anti-freezing liquid in circulating tank and the anti-freezing liquid in circulating cavity flow, constantly heat exchange is carried out to inner tank body, to guarantee the temperature of hydraulic oil.The kind of wind turbine low temperature resistant hydraulic pump station, low temperature resistance is better. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor according to these drawings.

[0017] Fig. 1 The structure schematic view of wind turbine low temperature resistant hydraulic pump station provided for this embodiment is shown in the figure;

[0018] Fig. 2 The structure schematic view of part of wind turbine low temperature resistant hydraulic pump station provided for this embodiment is shown in the figure;

[0019] Fig. 3 The structure schematic view of part of wind turbine low temperature resistant hydraulic pump station provided for this embodiment is shown in the figure.

[0020] Icon:

[0021] 100-tank; 110-inner tank body; 120-outer tank body; 121-heat preservation groove; 122-heat preservation layer; 130-tank cover; 140-circulating cavity; 141-sealing frame; 150-first electronic thermometer; 160-second electronic thermometer; 170-valve; 180-heat preservation cover;

[0022] 200-motor;

[0023] 300-oil pump;

[0024] 400 - valve body

[0025] 500 - circulation heating device; 510 - heating seat; 520 - circulation tank; 530 - circulation pump. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0028] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal", "vertical", and the like are not intended to mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" merely means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0032] The present embodiment provides a kind of wind turbine 200 group low temperature resistant hydraulic pump station, please refer to Figs. 1-3 As shown in the figure, it includes oil tank 100, motor 200, oil pump 300, valve body 400 and circulating heat preservation device 500;Oil tank 100 includes inner box 110, outer box 120 and tank cover 130;Inner box 110 is fixedly arranged in outer box 120, and circulating cavity 140 is arranged between inner box 110 and outer box 120, and tank cover 130 is connected with inner box 110 and outer box 120 respectively;Motor 200 is fixedly installed on tank cover 130, oil pump 300 is fixedly installed on tank cover 130, and oil pump 300 is drivingly connected with motor 200, one end of oil pump 300 is connected with inner box 110, and the other end is connected with valve body 400;Circulating heat preservation device 500 includes heating seat 510, circulating tank 520 and circulating pump 530, heating seat 510 is arranged on one side of outer box 120, circulating tank 520 is connected with heating seat 510, circulating pump 530 is installed on outer box 120, one end of which is communicated with circulating tank 520, and the other end is arranged in outer box 120.

[0033] Specifically, the oil tank 100 is used to provide hydraulic oil for the oil pump 300, and the motor 200 is used to provide power for the oil pump 300, wherein the oil pump 300 is connected to the pipeline of the valve body 400 and is provided with a flowmeter, the valve body 400 is used to control the flow direction and flow of the hydraulic oil; the tank cover 130 is used to seal the inner tank body 110 and the outer tank body 120, the circulating cavity 140 formed by the inner tank body 110 and the outer tank body 120 is used to place the antifreeze, the antifreeze exchanges heat with the inner tank body 110, thereby exchanging heat with the hydraulic oil, which can cool the hydraulic oil in summer and keep the hydraulic oil warm and heated in winter; the circulating heat preservation device 500 is used to heat the inner tank body 110, the heating seat 510 is used to heat the circulating tank 520, so that the antifreeze is heated to a certain temperature, thereby keeping the hydraulic oil in a normal use range, the circulating tank 520 is used to contain the antifreeze and is provided with a switch cover, and the circulating pump 530 is used to make the antifreeze flow in a cycle. In use, the circulating tank 520 is filled with antifreeze, at this time the antifreeze enters the circulating cavity 140, the heating seat 510 is started, the antifreeze in the circulating tank 520 is heated by the heating seat 510, the circulating pump 530 is started, and the antifreeze in the circulating tank 520 and the antifreeze in the circulating cavity 140 flow, thereby constantly exchanging heat with the inner tank body 110, so as to ensure the temperature of the hydraulic oil.

[0034] In the embodiment, the outer tank body 120 is provided with a heat preservation groove 121, and the heat preservation groove 121 is provided with a heat preservation layer 122.

[0035] Specifically, the heat preservation layer 122 is made of foam material and is used to improve the heat preservation performance of the outer tank body 120 and reduce heat loss of the antifreeze.

[0036] In the embodiment, the circulating cavity 140 is provided with a sealing frame 141 in an interference fit and located at the top of the circulating cavity 140.

[0037] Specifically, the sealing frame 141 is used to place the antifreeze in contact with the cover body and to enhance the tightness of the connection between the inner tank body 110 and the outer tank body 120.

[0038] In the embodiment, the tank cover 130 is connected with a first electronic thermometer 150, and the circulating tank 520 is connected with a second electronic thermometer 160.

[0039] Specifically, the first electronic thermometer 150 is used to measure the temperature of the antifreeze in the circulating tank 520, and the second electronic thermometer 160 is used to measure the temperature of the hydraulic oil inside the inner tank body 110, so as to facilitate the operator to observe and also to facilitate setting the heating temperature of the heating seat 510.

[0040] In the embodiment, the circulating tank 520 and the outer tank body 120 are provided with a valve 170.

[0041] Specifically, the valve 170 is used to control whether the circulating tank 520 and the circulating cavity 140 are communicated.

[0042] In this embodiment, the box cover 130 is detachably mounted with a heat preservation cover 180.

[0043] Specifically, the heat preservation cover 180 is used for heat preservation of the motor 200 and the hydraulic pump on the surface of the box cover 130, wherein the flow meter is arranged outside the heat preservation cover 180.

[0044] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A low temperature resistant hydraulic pump station for a wind turbine generator characterized in that, The oil tank (100), the motor (200), the oil pump (300), the valve body (400) and the circulating heat preservation device (500) are included. The oil tank (100) includes an inner tank body (110), an outer tank body (120) and a tank cover (130). The inner tank body (110) is fixedly arranged in the outer tank body (120), and a circulating cavity (140) is arranged between the inner tank body (110) and the outer tank body (120). The motor (200) is fixedly installed on the tank cover (130), the oil pump (300) is fixedly installed on the tank cover (130), and the oil pump (300) is in transmission connection with the motor (200), one end of the oil pump (300) is connected with the inner tank body (110), and the other end of the oil pump (300) is connected with the valve body (400). The circulating heat preservation device (500) includes a heating seat (510), a circulating tank (520) and a circulating pump (530), the heating seat (510) is arranged on one side of the outer tank body (120), the circulating tank (520) is connected with the heating seat (510), and the circulating pump (530) is installed on the outer tank body (120), one end of the circulating pump (530) is in communication with the circulating tank (520), and the other end of the circulating pump (530) penetrates the outer tank body (120).

2. A low temperature resistant hydraulic pump station for a wind turbine generator according to claim 1, characterized in that, The outer tank body (120) is provided with a heat preservation groove (121), and a heat preservation layer (122) is arranged in the heat preservation groove (121).

3. A low temperature hydraulic pump station for a wind turbine according to claim 2, wherein The circulating cavity (140) is in interference connection with a sealing frame (141), and the sealing frame (141) is located at the top of the circulating cavity (140).

4. A low temperature hydraulic pump station for a wind turbine according to claim 3, characterized in that The tank cover (130) is connected with a first electronic thermometer (150), and the circulating tank (520) is connected with a second electronic thermometer (160).

5. A low temperature hydraulic pump station for a wind turbine according to claim 4, wherein, The circulating tank (520) and the outer tank body (120) are provided with a valve (170).

6. A low temperature hydraulic pump station for a wind turbine according to claim 5, wherein, The tank cover (130) is detachably provided with a heat preservation cover (180).

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