Cleaning box and descaling device for steam boiler

Abstract

The cleaning box comprises a water tank and a supporting part, the upper end of the water tank is open, the lower end of the water tank is closed, the side wall of the water tank is of a structure capable of stretching and retracting in the vertical direction, and the supporting part is detachably connected to the side wall. The supporting part is used for supporting the upper end of the side wall to a position with a certain height away from the lower end of the side wall. Due to the adoption of the technical scheme, the cleaning box is more convenient to transport, and the utility model further relates to a descaling device for the steam boiler, which comprises the cleaning box.

Description

Technical Field

[0001] The utility model relates to the technical field of scale removal of steam boilers, in particular to a cleaning tank and a scale removal device for a steam boiler. Background Art

[0002] After a steam boiler has been used for a long time, a large amount of scale will adhere to the inside of the steam boiler. The scale adhering to the inside of the steam boiler will affect the heat transfer efficiency, resulting in an increase in fuel consumption and causing relatively large economic losses. Therefore, it is necessary to remove scale from the steam boiler regularly. At present, mechanical cleaning and chemical cleaning are mostly used to remove scale from the steam boiler.

[0003] When using chemical cleaning to remove scale from a steam boiler, a scale removal device will be used. The existing scale removal devices generally include a cleaning tank, a water supply pipe, a cleaning pump and a return pipe. One end of the water supply pipe is inserted into the cleaning tank from the upper opening of the cleaning tank and the other end is connected to the drain pipe of the steam boiler. The cleaning pump is arranged on the water supply pipe. One end of the return pipe is connected to the safety valve port of the steam boiler and the other end is inserted into the cleaning tank from the upper opening of the cleaning tank. The process of removing scale by chemical cleaning is as follows: a certain concentration of scale removal agent solution is prepared in the cleaning tank multiple times. After each preparation of the scale removal agent solution, the prepared scale removal agent solution is pumped into the steam boiler through the cleaning pump. After the steam boiler is filled with the scale removal agent solution, a scale removal agent solution is prepared in the cleaning tank again, and then the scale removal agent solution is circulated between the steam boiler and the cleaning tank for a period of time under the power of the cleaning pump. In this way, the scale of the steam boiler can be removed.

[0004] During the use of the existing scale removal device, the volume of the cleaning tank is large and the structure is fixed. When transporting the cleaning tank, the cleaning tank will occupy a large space and it is inconvenient to transport the cleaning tank. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a cleaning tank to solve the technical problem that the existing cleaning tank has a large volume and a fixed structure, and it is inconvenient to transport the cleaning tank.

[0006] The utility model is realized through the following technical solutions:

[0007] A cleaning tank includes a water tank and a support part. The upper end of the water tank is open and the lower end is closed. The side wall of the water tank is a structure that can be telescopically extended in the vertical direction. The support part is detachably connected to the side wall, and the support part is used to support the upper end of the side wall to a certain height position away from the lower end of the side wall.

[0008] Furthermore, the side wall of the water tank is made of a flexible and water-impermeable material.

[0009] Furthermore, the side wall of the water tank includes at least two cylinders arranged in sequence from bottom to top. Among every two adjacent cylinders, the lower cylinder is located inside the upper cylinder, and the lower cylinder is matched with the inner cavity of the upper cylinder.

[0010] Furthermore, among every two adjacent cylinders, a sealing ring is provided on the lower cylinder, and the sealing ring is used to seal the gap between the corresponding two cylinders.

[0011] Furthermore, it further includes a first support plate fixedly arranged at the upper end of the side wall and a second support plate fixedly arranged at the lower end of the side wall. A plurality of through holes are formed on the first support plate, and the plurality of through holes are evenly arranged around the water tank;

[0012] The support part includes a plurality of screw rods and a plurality of nuts. The lower end of the screw rod abuts against the second support plate, the screw rod is matched with the through hole, the plurality of screw rods are respectively located in the plurality of through holes one by one, the plurality of nuts are respectively screwed on the plurality of screw rods one by one, and the upper end of the nut abuts against the first support plate.

[0013] Furthermore, sleeves are provided at the positions corresponding to each screw rod on the second support plate, the lower end of the screw rod is inserted into the sleeve, and the lower end of the screw rod is matched with the sleeve.

[0014] Furthermore, a plurality of connecting grooves are formed by inward depression on the outer peripheral surface of the first support plate, and the plurality of connecting grooves are respectively communicated with the plurality of through holes one by one.

[0015] The present utility model also provides a descaling device for a steam boiler, including the above-mentioned cleaning tank.

[0016] The beneficial effects of the present utility model are as follows:

[0017] When it is necessary to transport the cleaning tank of the present utility model, the support part is detached from the side wall, so that the upper end of the side wall loses the support of the support part. At this time, the side wall of the water tank can be compressed downward, the side wall of the water tank can be in a compressed state, the height of the water tank body can be reduced, and further the volume of the water tank and the volume of the inner cavity of the water tank can be reduced, that is, the overall volume of the cleaning tank of the present utility model can be reduced, the space occupied by the cleaning tank of the present utility model can be reduced, and it is more convenient to transport the cleaning tank of the present utility model.

[0018] Other advantages, objects, and features of the present utility model will, to some extent, be described in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the examination and research of the following text, or can be taught from the practice of the present utility model. The objects and other advantages of the present utility model can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a preferred embodiment of the cleaning tank in the present utility model;

[0020] Figure 2 It is a top view of a preferred embodiment of the water tank in the cleaning tank of the present utility model;

[0021] Figure 3 is Figure 2 A - A cross-sectional view of;

[0022] Figure 4 It is a schematic structural diagram of another preferred embodiment of the cleaning tank in the present utility model;

[0023] Figure 5 It is a top view of another preferred embodiment of the water tank in the cleaning tank of the present utility model;

[0024] Figure 6 is Figure 5 B - B cross-sectional view of.

[0025] The meanings of the numbers in the figure are as follows:

[0026] Bottom wall - 1; Side wall - 2; First support plate - 3; Second support plate - 4; Through hole - 5; Screw - 6; Nut - 7; Connecting groove - 8; Sleeve - 9; Cylinder - 10; Sealing ring - 11; Groove - 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that like reference numerals and letters indicate like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In addition, terms such as "same" do not mean that the components are required to be absolutely the same, but there may be slight differences. The term "vertical" only means that the positional relationship between components is more vertical relative to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0032] Embodiment 1

[0033] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a cleaning tank, including a water tank and a supporting part. The upper end of the water tank is open, and the lower end of the water tank is closed. Specifically, the water tank includes a bottom wall 1 and a side wall 2 provided on the bottom wall 1. The bottom wall 1 and the side wall 2 enclose the inner cavity of the water tank, and the upper end of the inner cavity is in an open state. The side wall 2 of the water tank is a structure that can be telescopically extended in the vertical direction. The supporting part is detachably connected to the side wall 2, and the supporting part is used to support the upper end of the side wall 2 to a certain height position away from the lower end of the side wall 2. In this embodiment, the cross-section of the side wall 2 is circular. It can be understood that the cross-section of the side wall 2 is not limited to being circular. For example, in some embodiments, the cross-section of the side wall can also be square.

[0034] When the cleaning tank of the present utility model is in the initial state, the supporting part is connected to the side wall 2, and the supporting part supports the upper end of the side wall 2 to a certain height position away from the lower end of the side wall 2. At this time, the volume of the inner cavity of the water tank is a relatively large initial volume.

[0035] When it is necessary to transport the cleaning tank of the present utility model, the support portion is detached from the side wall 2, so that the upper end of the side wall 2 loses the support of the support portion. At this time, the side wall 2 of the water tank can be compressed downward, the side wall 2 of the water tank can be in a compressed state, the height of the water tank body can be reduced, and further the volume of the water tank and the volume of the inner cavity of the water tank can be reduced, that is, the overall volume of the cleaning tank of the present utility model can be reduced, the space occupied by the cleaning tank of the present utility model can be reduced, and it is more convenient to transport the cleaning tank of the present utility model.

[0036] Before preparing the descaling agent solution using the cleaning tank of the present utility model, the side wall 2 of the water tank is in a compressed state. When it is necessary to prepare the descaling agent solution using the cleaning tank of the present utility model, the side wall 2 of the water tank is stretched upward, so that the upper end of the side wall 2 is vertically stretched to a certain height position away from the lower end of the side wall 2, and then the support portion is connected to the side wall 2 to support the upper end of the side wall 2 to a certain height position away from the lower end of the side wall 2. At this time, the inner cavity of the water tank can be restored to the above-mentioned initial volume to facilitate the preparation of the descaling agent solution.

[0037] In this embodiment, the side wall 2 of the water tank is made of a flexible and waterproof material. Specifically, the side wall 2 of the water tank can be made of plastic waterproof cloth or waterproof canvas. Since the side wall 2 of the water tank is made of a flexible and waterproof material, the side wall 2 of the water tank can be compressed or stretched vertically. And when the descaling agent solution is filled in the water tank, the descaling agent solution is not likely to leak.

[0038] In this embodiment, the cleaning tank of the present utility model further includes a first support plate 3 fixedly arranged at the upper end of the side wall and a second support plate 4 fixedly arranged at the lower end of the side wall. A plurality of through holes 5 are formed in the first support plate 3, and the plurality of through holes 5 are uniformly arranged around the water tank;

[0039] The support portion includes a plurality of screw rods 6 and a plurality of nuts 7. The lower end of the screw rod 6 abuts against the second support plate 4. The screw rod 6 is matched with the through hole 5. The plurality of screw rods 6 are respectively located in the plurality of through holes 5 one by one. The plurality of nuts 7 are respectively screwed onto the plurality of screw rods 6 one by one, and the upper end of the nut 7 abuts against the first support plate 3.

[0040] With this structure, the plurality of screw rods 6 and the plurality of nuts 7 can support the upper end of the side wall 2 to a certain height position away from the lower end of the side wall 2, and the support portion can support the upper end of the side wall 2 to a certain height position away from the lower end of the side wall 2.

[0041] It is possible to rotate the corresponding nut 7 on each screw 6 to adjust the height of each nut 7, and it is possible to adjust the height at which the upper end of the side wall 2 is supported, and further it is possible to adjust the volume of the inner cavity of the water tank, making the cleaning tank described in the present utility model more flexible to use.

[0042] When it is necessary to disassemble the support part from the side wall 2, one descaling worker holds the first support plate steady, and another descaling worker holds the nut 7 with one hand and rotates the screw 6 with the other hand, so that the screw 6 moves upward and disengages from the nut 7, and then the screw 6 is pulled out upward from the through hole 5. At this time, one nut and screw can be disassembled from the side wall 2. According to the above method, multiple screws and multiple nuts are disassembled from the side wall 2, and the support part can be disassembled from the side wall.

[0043] When it is necessary to connect the support part to the side wall 2, one descaling worker moves the first support plate upward by a certain distance and then holds the first support plate steady, and another descaling worker passes the lower end of the screw 6 downward through the through hole 5, then screws the nut 7 onto the screw 6 from the lower end of the screw 6, and rotates the nut 7 to make the nut 7 move upward by a certain distance on the screw 6, and then continues to move the screw 6 downward so that the lower end of the screw 6 abuts against the second support plate 4, and then continues to rotate the nut 7 to make the nut 7 continue to move upward and abut against the first support plate 3. At this time, the screw 6 can connect the first support plate 3 and the second support plate 4, and the nut 7 can also connect the first support plate 3. Specifically, the lower end of the screw 6 abuts against the second support plate 4, the upper end of the screw 6 is inserted into the through hole 5, and the upper end of the nut 7 abuts against the first support plate 3. The screw 6 and the nut 7 can also be connected to the side wall 2. According to the above method, multiple screws and multiple nuts are connected to the side wall 2, and the support part can be connected to the side wall.

[0044] In this embodiment, sleeves 9 are provided at positions corresponding to each screw 6 on the second support plate 4, and the lower end of the screw 6 is inserted into the sleeve 9, and the lower end of the screw 6 is matched with the sleeve 9.

[0045] The sleeve 9 can play a limiting role on the lower end of the screw 6, so that the lower end of the screw 6 cannot translate on the second support plate 4, enabling the screw 6 to be more stably supported on the second support plate 4, and further enabling the support part to more stably support the upper end of the side wall 2.

[0046] In this embodiment, a plurality of connecting grooves 8 are formed by inwardly recessing the outer peripheral surface of the first support plate 3, and the plurality of connecting grooves 8 communicate with the plurality of through holes 5 one by one.

[0047] When it is necessary to disassemble the screw 6 and the nut 7 from the side wall 2, one descaling worker stabilizes the first support plate, and another descaling worker rotates the nut 7 on the screw 6 to move the nut 7 downward so that the distance from the upper side surface of the nut 7 to the lower end of the screw 6 is less than the distance from the upper end of the sleeve 9 to the lower side surface of the first support plate 3. Then the other descaling worker pulls the screw 6 upward from the sleeve 9 and moves the screw 6 along the connecting groove 8 away from the water tank, and the screw 6 can be removed from the through hole 5 and the connecting groove 8. At this time, the screw 6 and the nut 7 can be disassembled from the side wall 2, which is more convenient for disassembling the support screw and the nut from the side wall 2.

[0048] When it is necessary to connect the screw 6 and the nut 7 to the side wall 2, one descaling worker moves the first support plate upward by a certain distance and then stabilizes the first support plate. Another descaling worker rotates the nut 7 on the screw 6 to move the nut 7 on the screw so that the distance from the upper side surface of the nut 7 to the lower end of the screw 6 is less than the distance from the upper end of the sleeve 9 to the lower side surface of the first support plate 3. Then align the screw 6 with the connecting groove 8, and make the upper end of the nut 7 and the lower end of the screw 6 both located between the upper end of the sleeve 9 and the lower side surface of the first support plate 3. Then move the screw 6 and the nut 7 toward the water tank, and the screw 6 can be moved into the through hole 5. Then move the screw 6 downward so that the screw 6 is inserted into the sleeve 9 and supported on the second support plate 4. Then rotate the nut 7 on the screw 6 to move the nut 7 upward and make the upper end of the nut 7 abut against the first support plate 3. At this time, the screw 6 and the nut 7 can be disassembled from the side wall 2, which is more convenient for connecting the screw 6 and the nut 7 to the side wall 2.

[0049] Embodiment 2

[0050] The difference between this embodiment and Embodiment 1 is that the side wall 2 in this embodiment is different from the side wall 2 in Embodiment 1, and the rest are the same as those in Embodiment 1.

[0051] Specifically, please refer to Figures 4 - 6 , the side wall 2 of the water tank includes two cylinders 10 arranged in sequence from bottom to top. It can be understood that in other embodiments, the number of the cylinders can also be two or more other numbers. Among every two adjacent cylinders 10, the lower cylinder 10 is located inside the upper cylinder 10, and the inner cavity of the lower cylinder 10 is matched with that of the upper cylinder 10. The cylinder 10 is made of rigid material. For example, the cylinder 10 can be made of hard plastic, iron or stainless steel.

[0052] Among every two adjacent ones of the said cylinders 10, the upper cylinder 10 can slide up and down on the lower cylinder 10. With this structure, the side wall 2 of the said water tank can also be compressed or stretched vertically.

[0053] In this embodiment, among every two adjacent ones of the said cylinders 10, a sealing ring 11 is provided on the lower cylinder 10. The sealing ring 11 is made of elastic rubber material. The sealing ring 11 is used to seal the gap between the corresponding two cylinders 10. With this structure, the possibility that the configured descaling agent solution leaks out from the side wall 2 can be reduced.

[0054] In this embodiment, among every two adjacent ones of the said cylinders 10, a groove 12 that cooperates with the sealing ring 11 is formed by inward depression of the outer peripheral surface of the lower cylinder 10. The sealing ring 11 is located in the groove 12 and is in interference fit with the groove 12. The side surface of the sealing ring 11 facing away from the middle of the water tank abuts against the inner peripheral surface of the upper cylinder 10. With this structure, the sealing ring 11 can seal the gap between the corresponding two cylinders 10.

[0055] The present utility model also provides another technical solution:

[0056] A descaling device for a steam boiler, including the above-mentioned cleaning tank.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A cleaning tank, characterized in that: It includes a water tank and a support part. The upper end of the water tank is open and the lower end is closed. The side wall of the water tank is a structure that can be telescoped vertically. The support part is detachably connected to the side wall, and the support part is used to support the upper end of the side wall to a certain height position away from the lower end of the side wall.

2. The cleaning tank according to claim 1, wherein: The side wall of the water tank is made of a flexible and waterproof material.

3. The cleaning tank according to claim 1, wherein: The side wall of the water tank includes at least two cylinders arranged in sequence from bottom to top. Among every two adjacent cylinders, the lower cylinder is located inside the upper cylinder, and the lower cylinder is matched with the inner cavity of the upper cylinder.

4. The cleaning tank according to claim 3, wherein: Among every two adjacent cylinders, a sealing ring is provided on the lower cylinder, and the sealing ring is used to seal the gap between the corresponding two cylinders.

5. The cleaning tank according to any one of claims 1-4, characterized in that: It also includes a first support plate fixed to the upper end of the side wall and a second support plate fixed to the lower end of the side wall. A plurality of through holes are formed on the first support plate, and the plurality of through holes are evenly arranged around the water tank; The support part includes a plurality of screw rods and a plurality of nuts. The lower end of the screw rod abuts against the second support plate, and the screw rod is matched with the through hole. The plurality of screw rods are respectively located in the plurality of through holes one by one, and the plurality of nuts are screwed onto the plurality of screw rods one by one, and the upper end of the nut abuts against the first support plate.

6. The cleaning tank according to claim 5, wherein: Sleeves are provided at the positions corresponding to each screw rod on the second support plate, and the lower end of the screw rod is inserted into the sleeve, and the lower end of the screw rod is matched with the sleeve.

7. The cleaning tank according to claim 5, characterized in that: A plurality of connecting grooves are formed by inward depression on the outer peripheral surface of the first support plate, and the plurality of connecting grooves communicate with the plurality of through holes one by one.

8. A descaling device for a steam boiler, characterized in that: It includes the cleaning tank according to any one of claims 1-7.

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