Methanol pump device and methanol heater

Abstract

The utility model relates to the technical field of engine methanol heaters, and discloses a methanol pump device and a methanol heater, and the methanol pump device comprises a pump body, a lining, a plunger sleeve and a plunger body. One end of the plunger body is matched with the inner wall of the plunger bin of the plunger sleeve to form an alcohol cavity, and the plunger sleeve can reciprocate in the first direction so as to adjust the volume of the alcohol cavity; the alcohol passing opening of the lining is matched with the alcohol passing hole of the plunger sleeve to form an alcohol passing channel communicated with the alcohol cavity, and when the plunger sleeve reciprocates in the first direction, the alcohol passing channel can be kept in a communicated state. Therefore, according to the methanol pump device, the combustion power of the methanol heater can be finally adjusted by adjusting the volume of the methanol cavity, and the phenomenon of energy waste can be reduced while all functional requirements of the whole vehicle are met.

Description

Technical Field

[0001] The utility model relates to the technical field of engine methanol heaters, in particular to a methanol pump device and a methanol heater. Background Art

[0002] With the promotion and use of methanol engines, methanol heaters have been put into use due to their easy installation, low price and good effect.

[0003] However, the current methanol heaters cannot meet the multi-functional requirements of the entire vehicle; for example, high-power heating is required for cold start of the engine, while low-power heating can meet the requirements when the vehicle is performing operations such as parking heating and defrosting; and since the combustion power of the current methanol heaters is not adjustable, in order to meet the requirements of various functions of the entire vehicle, the methanol heaters are usually set to high power, which leads to energy waste to a certain extent.

[0004] Therefore, how to adjust the combustion power of the methanol heater to meet the functional requirements of the vehicle while reducing energy waste has become a technical problem that needs to be solved in this field. Utility Model Content

[0005] The purpose of this utility model is to at least solve the technical problem of how to adjust the combustion power of the methanol heater to meet the functional requirements of the vehicle while reducing energy waste. This purpose is achieved through the following technical solutions:

[0006] In the first aspect, the utility model proposes a methanol pump device, which includes: a pump body, having a first inner chamber and a second inner chamber arranged along a first direction and connected to each other, and along the first direction, the end of the pump body away from the first inner chamber has an alcohol inlet connected to the second inner chamber, and the end of the first inner chamber away from the second inner chamber has an opening; a sleeve extends along the first direction, the sleeve is fixedly installed in the first inner chamber, and the side wall of the sleeve is provided with an alcohol outlet; a plunger sleeve, including a first part and a second part connected to each other, both the first part and the second part extend along the first direction, the interior of the plunger sleeve has a plunger chamber that passes through the second part along the first direction and extends to the first part, the first part is penetrated by the opening, the end of the first part away from the plunger chamber has an alcohol outlet connected to the plunger chamber, the second part is located in the first inner chamber, and the sleeve is sleeved on the outer wall of the second part, the side wall of the second part is provided with an alcohol hole, the alcohol hole and the alcohol outlet cooperate to form an alcohol channel, and the plunger sleeve is equipped with The invention relates to a method for preparing an alcohol-containing liquid, wherein the alcohol-containing liquid is injected into the liquid and injected into the liquid phase of the alcohol pump. The method further comprises: providing a first port for injecting alcohol into the liquid phase of the alcohol pump; and providing a second port for injecting alcohol into the liquid phase of the alcohol pump. The method further comprises: providing a first port for injecting alcohol into the liquid phase of the alcohol pump; and injecting a second port for injecting alcohol into the liquid phase of the alcohol pump. The method further comprises: providing a first port for injecting alcohol into the liquid phase of the alcohol pump; and injecting a second port for injecting alcohol into the liquid phase of the alcohol pump. The method further comprises:

[0007] Before operation, this methanol pump device first determines the required heating power of the methanol heater based on the actual operating conditions of the vehicle. It is easy to understand that the larger the volume of the methanol chamber, the greater the flow of methanol fuel delivered to the heater body by the methanol pump device, thereby increasing the combustion power of the methanol heater. Conversely, the smaller the volume of the alcohol chamber, the lower the combustion power of the methanol heater. Therefore, this methanol pump device can adjust the combustion power of the methanol heater by adjusting the volume of the alcohol chamber, thereby meeting the various functional requirements of the vehicle while also reducing energy waste.

[0008] In some embodiments of the present invention, the inner wall of the opening has an internal thread, and the outer wall of the first part is provided with an external thread that matches the internal thread. The plunger sleeve can move back and forth in the first inner chamber along the first direction by rotating relative to the internal thread.

[0009] In some embodiments of the present invention, the alcohol-permeable holes are arc-shaped strip holes.

[0010] In some embodiments of the present invention, the extension direction of the arc-shaped strip hole matches the rotation direction of the external thread.

[0011] In some embodiments of the present invention, the first inner warehouse is provided with: a first limiting ring, which is arranged on the inner wall of the first inner warehouse, the first limiting ring is sleeved on the outer wall of the second part and abuts against the first end of the bushing; and a second limiting ring, which is fixedly connected to the inner wall of the first inner warehouse, the second limiting ring is sleeved on the outer wall of the second part and abuts against the second end of the bushing, and the second limiting ring is used to cooperate with the first limiting ring to limit the movement of the bushing along the first direction.

[0012] In some embodiments of the present invention, the first end of the bushing is provided with a first limiting protrusion for abutting against the first limiting ring, and the second limiting ring is provided with a through hole.

[0013] In some embodiments of the present invention, a second limiting protrusion is provided on the outer wall of the second part, and the second limiting protrusion is used to abut against the first limiting ring. The second limiting protrusion is used to cooperate with the first limiting ring to limit the movement of the plunger sleeve along the first direction toward one end close to the second inner chamber.

[0014] In some embodiments of the present invention, a limiting mechanism is provided on the outer wall of the end of the pump body away from the second inner chamber along the first direction, and the limiting mechanism is used to abut against the end of the first part away from the second part, and the limiting mechanism is used to limit the movement of the plunger sleeve along the first direction toward the end away from the second inner chamber.

[0015] In some embodiments of the present invention, the methanol pump device also includes: a methanol tank, which is connected to the second inner chamber through the alcohol inlet, and the methanol tank is used to provide methanol fuel to the second inner chamber through the alcohol inlet; and a nozzle, which is connected to the alcohol cavity through the alcohol outlet, and the nozzle is used to transport the methanol fuel to the heater body.

[0016] In the second aspect, the utility model proposes a methanol heater, which includes a heater body, a controller, a fan and any one of the above-mentioned methanol pump devices; the methanol pump device is used to transport methanol fuel to the heater body, and the fan is used to provide wind power to the heater body. The controller is connected to the methanol pump device and the fan signal respectively, and the controller is configured to detect the flow rate of the methanol pump device and transmit the flow rate signal to the fan. The fan is configured to adjust the air supply to the heater body according to the flow rate signal.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0019] Figure 1 A cross-sectional view of a methanol pump device in one state provided by an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the flow path of methanol fuel;

[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 A cross-sectional view of the methanol pump device provided by an embodiment of the present utility model in another state;

[0023] Figure 5 A schematic structural diagram of a plunger sleeve in a methanol pump device provided by an embodiment of the present utility model;

[0024] Figure 6 A schematic structural diagram of a sleeve in a methanol pump device provided in an embodiment of the present utility model;

[0025] Figure 7 A schematic structural diagram of the second limiting ring in the methanol pump device provided in an embodiment of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of a methanol heater provided in an embodiment of the present utility model.

[0027] The reference numerals are as follows:

[0028] 10. Methanol heater;

[0029] 100, methanol pump device; 200, heater body; 300, controller; 400, fan;

[0030] 1000, pump body; 1100, first inner chamber; 1110, first limiting ring; 1200, second inner chamber; 1001, alcohol inlet;

[0031] 2000, bushing; 2100, first limiting protrusion; 2001, alcohol outlet;

[0032] 3000, plunger sleeve; 3100, first part; 3101, alcohol outlet; 3102, external thread; 3200, second part; 3210, second limiting protrusion; 3201, alcohol hole; 3010, alcohol chamber;

[0033] 4000, alcohol channel;

[0034] 5000, plunger body; 5100, first plug; 5200, second plug;

[0035] 6000, second limiting ring; 6001, through hole;

[0036] 7000, limit mechanism. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0041] Figure 1 A cross-sectional view of a methanol pump device in one state provided by an embodiment of the present utility model; Figure 2 for Figure 1 Schematic diagram of the flow path of methanol fuel; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 A cross-sectional view of the methanol pump device provided by an embodiment of the present utility model in another state; Figure 5 A schematic structural diagram of a plunger sleeve in a methanol pump device provided by an embodiment of the present utility model; Figure 6 A schematic structural diagram of a sleeve in a methanol pump device according to an embodiment of the present invention; Figures 1 to 6As shown, the embodiment of the present invention provides a methanol pump device 100, which includes: a pump body 1000, having a first inner chamber 1100 and a second inner chamber 1200 arranged along a first direction and connected to each other, and along the first direction, the end of the pump body 1000 away from the first inner chamber 1100 has a methanol inlet 1001 connected to the second inner chamber 1200, and the end of the first inner chamber 1100 away from the second inner chamber 1200 has an opening; a sleeve 2000, extending along the first direction, the sleeve 2000 is fixedly installed in the first inner chamber 1100, and the side wall of the sleeve 2000 is provided with an alcohol inlet 2001; a plunger sleeve 3000, including a first inner chamber 1100 and a second inner chamber 1200 connected to each other. The first part 3100 and the second part 3200 are both extended in the first direction. The interior of the plunger sleeve 3000 is provided with a plunger bin that penetrates the second part 3200 along the first direction and extends to the first part 3100. The first part 3100 is arranged at the opening. The end of the first part 3100 away from the plunger bin is provided with an alcohol outlet 3101 that is connected to the plunger bin. The second part 3200 is located in the first inner bin 1100, and the bushing 2000 is sleeved on the outer wall of the second part 3200. An alcohol hole 3201 is provided on the side wall of the second part 3200. The alcohol hole 3201 cooperates with the alcohol port 2001 to form an alcohol channel 4000. The plunger sleeve 3000 is The alcohol passage 4000 is configured to be able to reciprocate in the first inner chamber 1100 along the first direction, and the alcohol passage 4000 is configured to remain connected when the plunger sleeve 3000 reciprocates in the first inner chamber 1100 along the first direction; and the plunger body 5000 is configured to be able to move relative to the alcohol inlet 1001 along the first direction, and the plunger body 5000 includes a first plug 5100 and a second plug 5200 connected to each other, the first plug 5100 and the second plug 5200 both extending along the first direction, the first plug 5100 passing through the plunger chamber and the second inner chamber 1200, the second plug 5200 is located in the second inner chamber 1200, and the first plug 5100 The end away from the second plug 5200 cooperates with the inner wall of the plunger chamber to form an alcohol chamber 3010, and the alcohol chamber 3010 is connected with the first inner chamber 1100 through the alcohol channel 4000; the plunger body 5000 has a first state and a second state. When the plunger body 5000 is in the first state, the alcohol chamber 3010 is connected with the first inner chamber 1100 through the alcohol channel 4000, and the end of the second plug 5200 away from the first plug 5100 blocks the alcohol inlet 1001; when the plunger body 5000 is in the second state, the side wall of the first plug 5100 blocks the alcohol channel 4000, and the end of the second plug 5200 away from the first plug 5100 releases the blockage of the alcohol inlet 1001.

[0042] It is easy to understand that the larger the volume of the alcohol chamber 3010, the greater the flow rate of methanol fuel ultimately delivered to the heater body 200 by the methanol pump device 100, thereby enabling the combustion power of the methanol heater 10 to be increased, such as Figure 4 On the contrary, the smaller the volume of the alcohol chamber 3010, the smaller the combustion power of the methanol heater 10; as shown; Figure 1 The methanol pump device 100 provided in this embodiment adjusts the combustion power of the methanol heater 10 by adjusting the volume of the alcohol chamber 3010 .

[0043] Specifically, in this embodiment, before the methanol pump device 100 is put into operation, the heating power required by the methanol heater 10 is first determined based on the actual operating conditions of the vehicle. For example, the actual operating condition of the vehicle is an engine cold start. The engine cold start requires high-power combustion, which means that the alcohol chamber 3010 needs to have a large volume.

[0044] During operation, the plunger sleeve 3000 is first moved in the first direction toward the end away from the second inner chamber 1200 to ensure that the alcohol chamber 3010 has a larger volume and that the alcohol passage 4000 is in a connected state. Figure 4 As shown, the methanol pump device 100 is then started, causing the plunger body 5000 to reciprocate along the first direction under the action of the external electromagnetic force, that is, the plunger body 5000 repeatedly switches between the first state and the second state;

[0045] refer to Figure 2 In the above process, the flow path of the methanol fuel is: first flowing into the second inner chamber 1200 from the alcohol inlet 1001, then flowing into the first inner chamber 1100 connected to the second inner chamber 1200, and then flowing into the alcohol chamber 3010 through the alcohol passage 4000. The methanol fuel accumulated in the alcohol chamber 3010 is continuously squeezed and flows out through the alcohol outlet 3101 as the plunger body 5000 moves back and forth, and finally the methanol fuel is transported to the heater body 200 for combustion.

[0046] It should be noted that if the actual working condition of the vehicle is parking heating, defrosting, etc., which require a smaller combustion power, the volume of the alcohol chamber 3010 can be adjusted to a smaller one, that is, the plunger sleeve 3000 is first moved along the first direction toward the end close to the second inner chamber 1200 to ensure that the alcohol chamber 3010 has a smaller volume, such as Figure 1 As shown, the remaining operations are the same as above and will not be repeated here.

[0047] Therefore, this methanol pump device 100 can adjust the size of the alcohol chamber 3010 according to the actual working conditions of the vehicle, thereby adjusting the combustion power of the methanol heater 10, and further achieving the goal of meeting the various functional requirements of the vehicle while reducing energy waste.

[0048] Among them, the alcohol passage hole 3201 can be a vertical long hole extending along the first direction, and the alcohol passage port 2001 can be a circular hole. In this way, when adjusting the volume of the alcohol chamber 3010, it is only necessary to push the plunger sleeve 3000 along the first direction so that a portion of the vertical long hole always corresponds to the position of the circular hole, thereby ensuring that the alcohol passage channel 4000 is in a connected state after the position of the plunger sleeve 3000 is adjusted.

[0049] In addition, it is easy to understand that a limit device (described in detail later) can also be provided to limit the range of reciprocating movement of the plunger sleeve 3000 in the first direction, thereby further ensuring the stability of the connection between the plunger sleeve 3000 and the first inner chamber 1100, and preventing the occurrence of poor transportation of methanol fuel due to disconnection of the alcohol channel 4000 caused by the misalignment of the position of the alcohol hole 3201 and the alcohol port 2001.

[0050] refer to Figure 1 、 Figure 4 and Figure 5 According to an optional embodiment of the present invention, the inner wall of the opening has an internal thread (not shown in the figure), and the outer wall of the first part 3100 is provided with an external thread 3102 that cooperates with the internal thread. The plunger sleeve 3000 can move back and forth in the first inner chamber 1100 along the first direction by rotating relative to the internal thread.

[0051] In this embodiment, when the volume of the alcohol chamber 3010 needs to be adjusted, the volume of the alcohol chamber 3010 can be increased / decreased simply by rotating the plunger sleeve 3000 counterclockwise / clockwise relative to the internal thread.

[0052] Therefore, this setting method can easily realize the movement of the plunger sleeve 3000 in the first direction, and the threaded connection is relatively firm and reliable, which can ensure the overall stability of the methanol pump device 100 after the position of the plunger sleeve 3000 is adjusted.

[0053] refer to Figure 4 and Figure 5 According to an optional embodiment of the present invention, the alcohol-passing hole 3201 is an arc-shaped strip hole.

[0054] In this embodiment, it is easy to understand that when the volume of the alcohol chamber 3010 is adjusted by screwing the plunger sleeve 3000, the position of the alcohol hole 3201 relative to the alcohol port 2001 will also change during the rotation of the plunger sleeve 3000. Therefore, in order to ensure that the alcohol channel 4000 is always in a connected state when the plunger sleeve 3000 rotates, the alcohol hole 3201 is an arc-shaped strip hole. The extension direction of the arc-shaped strip hole should meet the requirement that when the plunger sleeve 3000 rotates, a part of the arc-shaped strip hole can always correspond to the alcohol port 2001, thereby ensuring that the alcohol channel 4000 is always in a connected state when screwing.

[0055] Continue to refer Figure 4 and Figure 5 Specifically, according to an optional embodiment of the present invention, the extension direction of the arc-shaped strip hole matches the rotation direction of the external thread 3102 to further ensure that the alcohol channel 4000 is always in a connected state when the plunger sleeve 3000 rotates.

[0056] In addition, it should be noted that the length of the alcohol hole 3201 should be within a reasonable range; for example, the alcohol hole 3201 cannot extend a full circle around the side wall of the second part 3200. If so, there will be a phenomenon that methanol fuel always flows through the alcohol hole 3201 during the operation of the methanol pump device 100, affecting the reciprocating motion of the plunger body 5000 in the first direction, thereby affecting the compression of the methanol fuel accumulated in the alcohol cavity 3010 by the plunger body 5000; therefore, the alcohol hole 3201 only needs to be set in a section according to the extension direction of the external thread 3102, and the specific size should be determined according to actual needs and is not specifically restricted.

[0057] Figure 7 The schematic diagram of the structure of the second limiting ring in the methanol pump device provided by the embodiment of the utility model is also referred to Figures 1 to 7 According to an optional embodiment of the present invention, the first inner warehouse 1100 is provided with: a first limiting ring 1110, which is arranged on the inner wall of the first inner warehouse 1100, and the first limiting ring 1110 is sleeved on the outer wall of the second part 3200 and abuts against the first end of the bushing 2000; and a second limiting ring 6000, which is fixedly connected to the inner wall of the first inner warehouse 1100, and the second limiting ring 6000 is sleeved on the outer wall of the second part 3200 and abuts against the second end of the bushing 2000, and the second limiting ring 6000 is used to cooperate with the first limiting ring 1110 to limit the movement of the bushing 2000 along the first direction.

[0058] In this embodiment, it is easy to understand that the first limiting ring 1110 and the second limiting ring 6000 play a role in limiting the bushing 2000 , thereby improving the stability of the bushing 2000 in the methanol pump device 100 .

[0059] Among them, it should be noted that the first limiting ring 1110 can be integrated into the inner wall of the first inner chamber 1100, and the second limiting ring 6000 can be interference fit with the inner wall of the first inner chamber 1100, and an openable cover plate (not shown in the figure) is provided at one end of the pump body 1000 away from the first inner chamber 1100, and the alcohol inlet 1001 is provided on the cover plate. In this way, during assembly, the cover plate can be opened to provide an assembly channel, and the bushing 2000 is first sleeved on the outer wall of the second part 3200 of the plunger sleeve 3000, so that the first end of the bushing 2000 abuts against the first limiting ring 1110; then the second limiting ring 6000 is installed, so that it has an interference fit with the inner wall of the first inner chamber 1100, and the second limiting ring 6000 abuts against the second end of the bushing 2000; then the plunger body 5000 is installed through the assembly channel; finally, the cover plate is closed.

[0060] Continue to refer Figures 1 to 7 According to an optional embodiment of the present invention, the first end of the bushing 2000 is provided with a first limiting protrusion 2100 for abutting against the first limiting ring 1110 , and the second limiting ring 6000 is provided with a through hole 6001 .

[0061] In this embodiment, the first limiting protrusion 2100 can enhance the strength of the bushing 2000 , ensuring that the bushing 2000 can stably abut against the first limiting ring 1110 , thereby ensuring the limiting effect on the bushing 2000 .

[0062] In addition, it is easy to understand that the through hole 6001 is provided to ensure that the methanol fuel can flow through the through hole 6001 and the alcohol channel 4000 in sequence in the first inner chamber 1100 and finally flow into the alcohol cavity 3010; therefore, a plurality of through holes 6001 can be provided, for example, three through holes 6001 can be evenly spaced around the circumference of the second limiting ring 6000 to improve the efficiency of the methanol fuel flowing into the alcohol cavity 3010, such as Figure 7 It should be noted that the number of through holes 6001 is not specifically limited, and a suitable number can be selected based on actual working conditions.

[0063] like Figure 3 and Figure 5 As shown, according to an optional embodiment of the present invention, the outer wall of the second part 3200 is provided with a second limiting protrusion 3210, and the second limiting protrusion 3210 is used to abut against the first limiting ring 1110, and the second limiting protrusion 3210 is used to cooperate with the first limiting ring 1110 to limit the piston sleeve 3000 from moving along the first direction toward one end close to the second inner chamber 1200.

[0064] In this embodiment, similar to the above-mentioned limiting effect, the purpose of setting the second limiting protrusion 3210 is to prevent the plunger sleeve 3000 from excessively moving along the first direction toward the end close to the second inner chamber 1200, thereby ensuring that the alcohol outlet 3101 and the alcohol outlet hole can always be in a corresponding state to each other, that is, the alcohol channel 4000 is always kept connected, thereby improving the overall reliability of the methanol pump device 100 during operation.

[0065] like Figure 1 、 Figure 2 and Figure 4 As shown, according to an optional embodiment of the present invention, along the first direction, the outer wall of the end of the pump body 1000 away from the second inner chamber 1200 is provided with a limiting mechanism 7000, and the limiting mechanism 7000 is used to abut against the end of the first part 3100 away from the second part 3200, and the limiting mechanism 7000 is used to limit the movement of the plunger sleeve 3000 along the first direction toward the end away from the second inner chamber 1200.

[0066] In this embodiment, similar to the cooperation between the above-mentioned second limiting protrusion and the first limiting ring 1110, the purpose of setting the limiting mechanism 7000 is to prevent the plunger sleeve 3000 from excessively moving along the first direction toward the end away from the second inner chamber 1200, and also to ensure that the alcohol outlet 3101 and the alcohol outlet hole can always be in a corresponding state to each other, that is, to ensure that the alcohol channel 4000 is always connected, thereby improving the overall reliability of the methanol pump device 100 during operation.

[0067] Specifically, the limiting mechanism 7000 can be a limiting rod with a U-shaped structure. When the plunger sleeve 3000 moves excessively along the first direction toward one end away from the second inner chamber 1200, the end of the first part 3100 away from the second part 3200 will interfere with the limiting rod, thereby preventing the plunger sleeve 3000 from continuing to move.

[0068] like Figure 4 As shown, the end of the first part 3100 away from the second part 3200 interferes with the limit rod, that is, the plunger sleeve 3000 cannot continue to move along the first direction toward the end away from the second inner chamber 1200, thereby limiting the plunger sleeve 3000.

[0069] It should be noted that the form of the limiting mechanism 7000 in this embodiment is only for illustration, and the specific structure and limiting method of the limiting mechanism 7000 may be based on actual working conditions and are not specifically limited.

[0070] According to an optional embodiment of the present invention, the methanol pump device 100 also includes: a methanol tank (not shown in the figure), which is connected to the second inner chamber 1200 through the alcohol inlet 1001, and the methanol tank is used to provide methanol fuel to the second inner chamber 1200 through the alcohol inlet 1001; and a nozzle (not shown in the figure), which is connected to the alcohol chamber 3010 through the alcohol outlet 3101, and the nozzle is used to transport the methanol fuel to the heater body 200.

[0071] In this embodiment, during assembly, the methanol tank is connected to the second inner chamber 1200 via the methanol inlet 1001, and the nozzle is connected to the alcohol chamber 3010 via the alcohol outlet 3101. Methanol fuel is delivered from the methanol tank to the second inner chamber 1200, and the methanol pump device 100 is activated. During operation of the methanol pump device 100, the methanol fuel that ultimately enters the alcohol chamber 3010 continuously flows through the nozzle via the alcohol outlet 3101 and is ultimately delivered to the heater body 200.

[0072] Figure 8 A schematic diagram of the structure of the methanol heater provided by the embodiment of the present utility model is shown as follows: Figure 8 As shown, an embodiment of the present invention further provides a methanol heater 10, which includes a heater body 200, a controller 300, a fan 400 and any one of the above-mentioned methanol pump devices 100; the methanol pump device 100 is used to transport methanol fuel to the heater body 200, and the fan 400 is used to provide wind power to the heater body 200. The controller 300 is signal-connected to the methanol pump device 100 and the fan 400 respectively. The controller 300 is configured to detect the flow rate of the methanol pump device 100 and transmit the flow rate signal to the fan 400. The fan 400 is configured to adjust the air supply to the heater body 200 according to the flow rate signal.

[0073] Among them, it is easy to understand that the controller 300 may include a detection unit and a control unit, the detection unit is used to detect the flow of the methanol pump device 100, and the control unit is used to transmit the flow signal to the fan 400.

[0074] In this embodiment, since the volume of the alcohol chamber 3010 in the methanol pump device 100 is adjustable, that is, the flow rate of the methanol fuel ultimately delivered to the heater body 200 is adjustable, in order to further coordinate combustion, the air volume in the heater body 200 should also be set to be adjustable.

[0075] Therefore, this embodiment is provided with a controller 300, which is respectively connected to the methanol pump device 100 and the fan 400 by signals, so that the fan 400 can adjust the amount of air delivered to the heater body 200 according to the flow rate of methanol fuel delivered by the methanol pump device 100 to the heater body 200 under actual working conditions, thereby making the overall combustion of the methanol heater 10 more reasonable.

[0076] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A methanol pump device, characterized in that: include: A pump body having a first inner chamber and a second inner chamber arranged in a first direction and connected to each other, wherein along the first direction, an end of the pump body away from the first inner chamber has an alcohol inlet connected to the second inner chamber, and an end of the first inner chamber away from the second inner chamber has an opening; a bushing extending along the first direction, the bushing being fixedly installed in the first inner chamber, and the side wall of the bushing being provided with an alcohol outlet; The plunger sleeve comprises a first portion and a second portion connected to each other, the first portion and the second portion both extending along the first direction, the interior of the plunger sleeve having a plunger chamber penetrating the second portion and extending to the first portion along the first direction, the first portion being arranged through the opening, the first portion having an end facing away from the plunger chamber having an alcohol outlet communicating with the plunger chamber, the second portion being located in the first inner chamber, the bushing being sleeved on the outer wall of the second portion, an alcohol passage hole being provided on the side wall of the second portion, the alcohol passage hole and the alcohol passage port cooperating to form an alcohol passage channel, the plunger sleeve being configured to be able to reciprocate in the first inner chamber along the first direction, and the alcohol passage channel being configured to remain in a connected state when the plunger sleeve reciprocates in the first inner chamber along the first direction; as well as The plunger body is configured to be able to move relative to the alcohol inlet along the first direction, and the plunger body includes a first plug and a second plug connected to each other, the first plug and the second plug both extending along the first direction, the first plug passing through the plunger chamber and the second inner chamber, the second plug is located in the second inner chamber, the end of the first plug away from the second plug cooperates with the inner wall of the plunger chamber to form an alcohol chamber, and the alcohol chamber is connected to the first inner chamber through the alcohol passage; the plunger body has a first state and a second state, when the plunger body is in the first state, the alcohol chamber is connected to the first inner chamber through the alcohol passage, and the end of the second plug away from the first plug blocks the alcohol inlet; when the plunger body is in the second state, the side wall of the first plug blocks the alcohol passage, and the end of the second plug away from the first plug releases the blockage of the alcohol inlet.

2. The methanol pump device according to claim 1, characterized in that The inner wall of the opening has an internal thread, and the outer wall of the first part is provided with an external thread that matches the internal thread. The plunger sleeve achieves reciprocating movement in the first inner chamber along the first direction by rotating relative to the internal thread.

3. The methanol pump device according to claim 2, characterized in that: The alcohol permeation holes are arc-shaped strip holes.

4. The methanol pump device according to claim 3, characterized in that: The extending direction of the arc-shaped strip-shaped hole matches the rotation direction of the external thread.

5. The methanol pump device according to claim 1, characterized in that: The first inner compartment is provided with: a first limiting ring, disposed on the inner wall of the first inner chamber, the first limiting ring being sleeved on the outer wall of the second portion and abutting against the first end of the bushing; and The second limiting ring is fixedly connected to the inner wall of the first inner chamber. The second limiting ring is sleeved on the outer wall of the second part and abuts against the second end of the bushing. The second limiting ring is used to cooperate with the first limiting ring to limit the movement of the bushing along the first direction.

6. The methanol pump device according to claim 5, characterized in that: The first end of the bushing is provided with a first limiting protrusion for abutting against the first limiting ring, and the second limiting ring is provided with a through hole.

7. The methanol pump device according to claim 5, characterized in that: A second limiting protrusion is provided on the outer wall of the second part, and the second limiting protrusion is used to abut against the first limiting ring. The second limiting protrusion is used to cooperate with the first limiting ring to limit the movement of the plunger sleeve along the first direction toward one end close to the second inner chamber.

8. The methanol pump device according to claim 5, characterized in that: Along the first direction, a limiting mechanism is provided on the outer wall of the end of the pump body away from the second inner warehouse, and the limiting mechanism is used to abut against the end of the first part away from the second part. The limiting mechanism is used to limit the movement of the plunger sleeve along the first direction toward the end away from the second inner warehouse.

9. The methanol pump device according to any one of claims 1 to 8, characterized in that: The methanol pump device also includes: a methanol tank, connected to the second inner chamber through the methanol inlet, and configured to provide methanol fuel to the second inner chamber through the methanol inlet; and A nozzle is connected to the alcohol cavity through the alcohol outlet, and the nozzle is used to transport methanol fuel to the heater body.

10. A methanol heater, characterized in that: It comprises a heater body, a controller, a fan and a methanol pump device according to any one of claims 1 to 9; The methanol pump device is used to transport methanol fuel to the heater body, and the fan is used to provide wind power to the heater body. The controller is connected to the methanol pump device and the fan signal respectively. The controller is configured to detect the flow rate of the methanol pump device and transmit the flow rate signal to the fan. The fan is configured to adjust the air supply to the heater body according to the flow rate signal.

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