A sewage heat exchanger

Abstract

The utility model provides a sewage heat exchanger, which relates to the technical field of heat exchange equipment. The sewage heat exchanger comprises: a shell, both ends of the shell are provided with inspection ports; a first inspection door and a second inspection door, which are respectively detachably connected to the positions of the two inspection ports; a plurality of heat exchange plate components, the interior of the heat exchange plate components is provided with a clean water heat exchange channel, the clean water heat exchange channel is used for flowing clean water, the plurality of heat exchange plate components are sequentially arranged in the shell from top to bottom, a sewage heat exchange channel is formed on both sides of each heat exchange plate component, the two ends of the sewage heat exchange channel are respectively connected with the two inspection ports, the sewage heat exchange channel is used for flowing sewage, when the sewage heat exchange channel is blocked by dirt, fiber or hair, the first inspection door and the second inspection door can be opened, and the sewage heat exchange channel can be cleaned, which is very convenient and improves work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchange equipment, and more specifically, relates to a sewage heat exchanger. Background Art

[0002] Energy is an important material basis for our survival and development. Finding and utilizing new renewable energy is an effective way to solve energy shortages. Developing and utilizing urban raw sewage as a low-level cold and heat source for heat pumps to provide heating and cooling for buildings has important energy-saving and environmental protection value, and is of great significance to alleviating energy consumption tensions and reducing environmental pollution.

[0003] Raw sewage contains a large amount of dirt, fibers and hair. If existing ordinary heat exchange equipment is used for heat exchange, once the dirt, fibers and hair block the heat exchange channel, due to the structural design defects of ordinary heat exchange equipment and it is difficult to clean the heat exchange channel, the equipment will not be able to work normally for a long time, reducing work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage heat exchanger in view of the deficiencies in the existing technology, so as to solve the problem proposed in the background technology that when sewage is used as a low-level cold and heat source of a heat pump to exchange heat with clean water, if existing ordinary heat exchange equipment is used for heat exchange, once the dirt, fibers and hair in the sewage block the heat exchange channel, it is difficult to clean them, and the equipment will not be able to work normally for a long time, thereby reducing the working efficiency.

[0005] In order to achieve the above object, the utility model provides a sewage heat exchanger, which comprises:

[0006] A shell, wherein both ends of the shell are provided with inspection ports;

[0007] The first inspection door and the second inspection door are detachably connected to the positions of the two inspection openings;

[0008] A plurality of heat exchange plate components are provided with clean water heat exchange channels inside the heat exchange plate components, and clean water is flowed in the clean water heat exchange channels. The plurality of heat exchange plate components are sequentially arranged in the shell from top to bottom, and sewage heat exchange channels are formed on both sides of each of the heat exchange plate components. Both ends of the sewage heat exchange channel are respectively connected to the two inspection ports, and sewage is flowed in the sewage heat exchange channel.

[0009] Preferably, one end of one of the two adjacent heat exchange plate components is in contact with the first inspection door, and a sewage deflection cavity is formed between the other end and the second inspection door, and a sewage deflection cavity is formed between one end of the other heat exchange plate component and the first inspection door, and the other end is in contact with the second inspection door, and the two adjacent sewage heat exchange channels are connected through the sewage deflection cavity.

[0010] Preferably, both sides of the sewage heat exchange channel are provided with spacers for packaging, and the two ends of the spacers are respectively connected to the two ends of the shell.

[0011] Preferably, the sewage heat exchanger further comprises:

[0012] A first clean water linkage box, wherein a plurality of first clean water baffle chambers are sequentially arranged inside the first clean water linkage box from top to bottom, and the first clean water linkage box is arranged on one side of the housing and is arranged near the first inspection door;

[0013] A second clean water linkage box, wherein a plurality of second clean water baffle chambers are sequentially arranged inside the second clean water linkage box from top to bottom, and the second clean water linkage box is arranged on the other side of the housing and is arranged near the second inspection door;

[0014] Baffles are provided on both sides of the heat exchange plate component, and the baffles on both sides are respectively close to the two ends of the heat exchange plate component. The interior of each of the first clean water baffle chambers is connected with the multiple baffles on one side, and the interior of each of the second clean water baffle chambers is connected with the multiple baffles on the other side.

[0015] Preferably, the sewage heat exchanger also includes a clean water inlet, a clean water outlet, a sewage inlet and a sewage outlet, the clean water inlet and the clean water outlet are respectively arranged at the two ends of the first clean water linkage box, and the sewage inlet and the sewage outlet are respectively arranged on the shell.

[0016] Preferably, the heat exchange plate component comprises two heat exchange plates, the circumferential sides of the two heat exchange plates are connected to each other, and a fresh water heat exchange channel is formed between the two heat exchange plates.

[0017] Preferably, the heat exchange plate is a stainless steel plate, a plurality of concave points are arranged on the heat exchange plate, and the concave points opposite to each other on two heat exchange plates are symmetrically contacted and connected by spot welding.

[0018] Preferably, the sewage heat exchanger further comprises a support base plate and at least two supports, at least two of the supports are connected to the bottom of the support base plate, and the support base plate is arranged at the bottom of the shell.

[0019] Preferably, the sewage heat exchanger further comprises a support top plate and at least four lifting rings, wherein the at least four lifting rings are connected to the top of the support top plate, and the support top plate is arranged on the top of the shell.

[0020] Preferably, the sewage heat exchanger further comprises a plurality of tie bars, a portion of the tie bars are arranged on one side of the shell, another portion of the tie bars are arranged on the other side of the shell, and both ends of the tie bars are respectively connected to the support bottom plate and the support top plate.

[0021] The utility model provides a sewage heat exchanger, which has the beneficial effects of: inspection ports are provided at both ends of the shell of the sewage heat exchanger, and the two inspection ports are detachably connected with a first inspection door and a second inspection door respectively. The sewage heat exchange channels on both sides of the heat exchange plate component are used for flowing sewage, and can exchange heat with clean water flowing in the clean water heat exchange channel inside the heat exchange plate component. Since the two ends of the sewage heat exchange channel are respectively connected with the two inspection ports, when the sewage heat exchange channel is blocked by dirt, fiber or hair, the first inspection door and the second inspection door can be opened to clean the sewage heat exchange channel, and high-pressure water can be introduced from the inspection port on one side, and the dirt, fiber or hair will flow out from the inspection port on the other side. The cleaning process is very convenient and it is easy to clean the sewage heat exchange channel. Once the sewage heat exchanger is blocked, it does not need to be shut down for a long time to clean it, thereby improving work efficiency.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0024] Figure 1 A schematic diagram of the main structure of a sewage heat exchanger according to an embodiment of the utility model is shown;

[0025] Figure 2 A left-side structural schematic diagram of a sewage heat exchanger according to an embodiment of the utility model is shown;

[0026] Figure 3 A right side structural schematic diagram of a sewage heat exchanger according to an embodiment of the utility model is shown;

[0027] Figure 4 A schematic diagram of a top view of a sewage heat exchanger according to an embodiment of the utility model is shown;

[0028] Figure 5 The axial structure diagram of a sewage heat exchanger according to an embodiment of the utility model is shown. Figure 1 ;

[0029] Figure 6The axial structure diagram of a sewage heat exchanger according to an embodiment of the utility model is shown. Figure 2 ;

[0030] Figure 7 Shows Figure 3 Schematic diagram of the structure in the AA direction;

[0031] Figure 8 Shows Figure 4 Schematic diagram of the structure in the middle BB direction;

[0032] Fig. 9 Shows Figure 4 Schematic diagram of the structure in the CC direction;

[0033] Fig.10 Shows Figure 4 Schematic diagram of the structure in the DD direction;

[0034] Fig.11 Shows Figure 4 Schematic diagram of the structure in the EE direction;

[0035] Fig.12 The exploded structure diagram of a sewage heat exchanger according to an embodiment of the utility model is shown. Figure 1 ;

[0036] Fig.13 The exploded structure diagram of a sewage heat exchanger according to an embodiment of the utility model is shown. Figure 2 ;

[0037] Fig.14 A schematic structural diagram of a heat exchange plate component of a sewage heat exchanger according to an embodiment of the utility model is shown.

[0038] Description of reference numerals:

[0039] 1. Shell; 2. Clean water outlet; 3. Sewage inlet; 4. Second inspection door; 5. Sewage outlet; 6. Support; 7. Support bottom plate; 8. Clean water inlet; 9. First inspection door; 10. Support top plate; 11. First clean water linkage box; 12. Second clean water linkage box; 13. Heat exchange plate; 14. Sewage heat exchange channel; 15. Clean water heat exchange channel; 16. Sewage baffle chamber; 17. Partition; 18. Baffle port; 19. Tie bar; 20. Partition bar; 21. First clean water baffle chamber; 22. Second clean water baffle chamber; DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0041] like Figure 1-Figure 6 As shown, the utility model provides a sewage heat exchanger, which includes:

[0042] Shell 1, both ends of shell 1 are provided with inspection ports;

[0043] The first inspection door 9 and the second inspection door 4 are detachably connected to the positions of the two inspection openings;

[0044] A plurality of heat exchange plate components are provided with a clean water heat exchange channel 15 inside the heat exchange plate components, and clean water is flowed in the clean water heat exchange channel 15. The plurality of heat exchange plate components are sequentially arranged in the shell 1 from top to bottom, and a sewage heat exchange channel 14 is formed on both sides of each heat exchange plate component. The two ends of the sewage heat exchange channel 14 are respectively connected to two inspection ports, and the sewage heat exchange channel 14 is used to flow sewage.

[0045] Specifically, in order to solve the problem that when sewage is used as a low-level cold and heat source of a heat pump to exchange heat with clean water, if existing ordinary heat exchange equipment is used for heat exchange, once the dirt, fibers and hair in the sewage block the heat exchange channel, it is difficult to clean them, and the equipment will not be able to work normally for a long time, reducing the working efficiency, the utility model provides a sewage heat exchanger, and both ends of the housing 1 of the sewage heat exchanger are provided with inspection ports, and the two inspection ports are detachably connected with a first inspection door 4 and a second inspection door 9, respectively. The sewage heat exchange channels 14 on both sides of the heat exchange plate component are used for flowing sewage, which can be connected to the inside of the heat exchange plate component. Clean water flows through the clean water heat exchange channel 15 for heat exchange. Since the two ends of the sewage heat exchange channel 14 are respectively connected to the two inspection ports, when the sewage heat exchange channel 15 is blocked by dirt, fibers or hair, the first inspection door 9 and the second inspection door 4 can be opened to clean the sewage heat exchange channel 14. High-pressure water can be introduced from the inspection port on one side, and the dirt, fibers or hair will flow out from the inspection port on the other side. The cleaning process is very convenient and it is easy to clean the sewage heat exchange channel. Once the sewage heat exchanger is blocked, it can be cleaned without long-term shutdown, thereby improving work efficiency.

[0046] like Figure 7 and Figure 8As shown, preferably, one end of one of the two adjacent heat exchange plate components is in contact with the first inspection door 9, and a sewage deflection cavity 16 is formed between the other end and the second inspection door 4; a sewage deflection cavity 16 is formed between one end of the other heat exchange plate component and the first inspection door 9, and the other end is in contact with the second inspection door 4, and the two adjacent sewage heat exchange channels 14 are connected through the sewage deflection cavity 16.

[0047] Specifically, two adjacent heat exchange plate components are arranged in a staggered manner, so that sewage can flow out along the sewage heat exchange channel 14 after multiple deflections, thereby improving the heat exchange capacity with clean water, having a reasonable structure, and ensuring the stability of heat exchange.

[0048] like Fig.12 and Fig.13 As shown, preferably, both sides of the sewage heat exchange channel are provided with spacers 20 for packaging, and the two ends of the spacers 20 are respectively connected to the two ends of the shell 1.

[0049] Specifically, the two ends of the partition bar 20 are respectively welded to the two ends of the shell 1, the upper edge and the lower edge of the partition bar 20 are respectively welded to the top and the bottom of the sewage heat exchange channel, the height of the partition bar 20 is not less than 30 mm, and the partition bar 20 is used to block both sides of the sewage heat exchange channel 14.

[0050] like Figure 7-Figure 14 As shown, preferably, the sewage heat exchanger also includes:

[0051] A first clean water linkage box 11, wherein a plurality of first clean water baffle chambers 21 are sequentially arranged inside the first clean water linkage box 11 from top to bottom, and the first clean water linkage box 11 is arranged on one side of the housing 1 and is arranged near the first inspection door 9;

[0052] A second clean water linkage box 12, wherein a plurality of second clean water baffle chambers 22 are sequentially arranged inside the second clean water linkage box 12 from top to bottom, and the second clean water linkage box 12 is arranged on the other side of the housing 1 and is arranged near the second inspection door 4;

[0053] Baffles 18 are provided on both sides of the heat exchange plate component, and the baffles 18 on both sides are respectively close to the two ends of the heat exchange plate component. The interior of each first clean water baffle cavity 21 is connected with the multiple baffles 18 on one side, and the interior of each second clean water baffle cavity 22 is connected with the multiple baffles 18 on the other side.

[0054] Specifically, two adjacent first clean water baffle chambers 21 are separated by a partition 17, and two adjacent second clean water baffle chambers 22 are also separated by a partition 17. Baffle ports 18 are provided at two diagonal positions of the heat exchange plate component. The interior of each first clean water baffle chamber 21 is connected to multiple baffle ports 18 on one side, and the interior of each second clean water baffle chamber 22 is connected to multiple baffle ports 18 on the other side, so that clean water can flow out along the clean water heat exchange channel 15 after multiple baffles, thereby improving the ability to exchange heat with sewage. The structure is reasonable and the stability of heat exchange is guaranteed.

[0055] like Figure 5 and Figure 6 As shown, preferably, the sewage heat exchanger also includes a clean water inlet 8, a clean water outlet 2, a sewage inlet 3 and a sewage outlet 5, the clean water inlet 8 and the clean water outlet 2 are respectively arranged at the two ends of the first clean water linkage box 11, and the sewage inlet 3 and the sewage outlet 5 are respectively arranged on the shell 1.

[0056] Specifically, the clean water inlet 8 is arranged at the bottom end of the first clean water linkage box 11, and the clean water outlet 2 is arranged at the top end of the first clean water linkage box 11. Clean water flows in from the clean water inlet 8, and after heat exchange, flows out from the clean water outlet 2; the sewage inlet 3 is arranged at the top of the shell 1, and the sewage outlet 5 is arranged at the bottom of the shell 1. Sewage flows in from the sewage inlet 3, and after heat exchange, flows out from the sewage outlet 5.

[0057] like Fig.14 As shown, preferably, the heat exchange plate component includes two heat exchange plates 13 , the circumferential sides of the two heat exchange plates 13 are connected to each other, and a fresh water heat exchange channel 15 is formed between the two heat exchange plates 13 .

[0058] Specifically, the two heat exchange plates 13 are connected by welding around their peripheries.

[0059] Preferably, the heat exchange plate 13 is a stainless steel plate, and a plurality of concave points are provided on the heat exchange plate 13 . The concave points opposite to each other on two heat exchange plates 13 are symmetrically contacted and connected by spot welding.

[0060] Specifically, the relative concave points of the two heat exchange plates 13 are contact spot welded to solve the problem that most of the existing sewage heat exchangers are made of carbon steel. Due to the complex composition of sewage water, it is easy to be corroded, resulting in a short life of the equipment or inability to be used normally. The heat exchange plates 13 used for heat exchange in this application are made of stainless steel plates, which can play an anti-corrosion role and increase the service life of the sewage heat exchanger.

[0061] Preferably, the sewage heat exchanger further comprises a support base plate 7 and at least two supports 6 , wherein the at least two supports 6 are connected to the bottom of the support base plate 7 , and the support base plate 7 is arranged at the bottom of the shell 1 .

[0062] The sewage heat exchanger further includes a support top plate 10 and at least four lifting rings, wherein the at least four lifting rings are connected to the top of the support top plate 10 , and the support top plate 10 is arranged on the top of the shell 1 .

[0063] The sewage heat exchanger further includes a plurality of tie bars 19, a portion of the tie bars 19 are arranged on one side of the shell 1, and another portion of the tie bars 19 are arranged on the other side of the shell 1, and both ends of the tie bars 19 are respectively connected to the support bottom plate 7 and the support top plate 10.

[0064] Specifically, the support 6 is welded to the support bottom plate 7, the lifting ring is welded to the support top plate 10, and the support bottom plate 7 and the support top plate 10 are fixedly connected by tie bars 19, so that the shell 1 is in close contact with the top surface of the support bottom plate 7 and the bottom surface of the support top plate 10.

[0065] In summary, when the sewage heat exchanger of the utility model performs heat exchange between sewage and clean water, the specific process is as follows:

[0066] Sewage heat exchange process, such as Figure 7 and Figure 8 As shown, the sewage enters the first sewage heat exchange channel 14 from top to bottom from the sewage inlet 3, flows toward the first inspection door 9, exchanges heat with the clean water in the clean water heat exchange channel 15 in the heat exchange plate component, and after reaching the sewage baffle chamber 16, is baffled through the sewage baffle chamber 16 to enter the second sewage heat exchange channel 14 from top to bottom, flows toward the second inspection door 4, exchanges heat with the clean water, and after reaching the sewage baffle chamber 16, is baffled through the sewage baffle chamber 16 to enter the third sewage heat exchange channel 14 from top to bottom, flows toward the first inspection door 9, exchanges heat with the clean water, and after reaching the sewage baffle chamber 16, is baffled through the sewage baffle chamber 16 to enter the fourth sewage heat exchange channel 14 from top to bottom, flows toward the second inspection door 4, exchanges heat with the clean water, and after reaching the sewage baffle chamber 16, is baffled through the sewage baffle chamber 16 to enter the nth sewage heat exchange channel 14 from top to bottom, and finally flows out from the sewage outlet 5.

[0067] Clean water heat exchange process: Figure 7 , Fig.10 and Fig.11As shown, the clean water enters the first group of multiple clean water heat exchange channels 15 from bottom to top from the clean water inlet 8, flows along the clean water heat exchange channel 15 toward the second inspection door 4, exchanges heat with the sewage in the sewage heat exchange channel 14, flows to the second clean water baffle chamber 22, and then baffles through the second clean water baffle chamber 22 to the second group of multiple clean water heat exchange channels 15 from bottom to top, flows along the clean water heat exchange channel 15 toward the first inspection door 9, exchanges heat with the sewage in the sewage heat exchange channel 14, flows through the first clean water baffle chamber 21, and then baffles through the first clean water baffle chamber 21 to the second group of multiple clean water heat exchange channels 15 from bottom to top. The three groups of clean water heat exchange channels 15 flow along the clean water heat exchange channels 15 toward the second inspection door 4, exchange heat with the sewage in the sewage heat exchange channels 14, flow to the second clean water baffle chamber 22, and then baffle through the second clean water baffle chamber 22 to the fourth group of clean water heat exchange channels 15 from bottom to top, flow along the clean water heat exchange channels 15 toward the first inspection door 9, exchange heat with the sewage in the sewage heat exchange channels 14, flow to the first clean water baffle chamber 21, and then baffle through the first clean water baffle chamber 21 to the nth clean water heat exchange channel 15 from bottom to top, and finally flow out from the clean water outlet 2.

[0068] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A sewage heat exchanger, characterized in that: The sewage heat exchanger includes: A shell, wherein both ends of the shell are provided with inspection ports; The first inspection door and the second inspection door are detachably connected to the positions of the two inspection openings; A plurality of heat exchange plate components are provided with clean water heat exchange channels inside the heat exchange plate components, and clean water is flowed in the clean water heat exchange channels. The plurality of heat exchange plate components are sequentially arranged in the shell from top to bottom, and sewage heat exchange channels are formed on both sides of each of the heat exchange plate components. Both ends of the sewage heat exchange channel are respectively connected to the two inspection ports, and sewage is flowed in the sewage heat exchange channel.

2. A sewage heat exchanger according to claim 1, characterized in that: One end of one of the two adjacent heat exchange plate components is in contact with the first inspection door, and a sewage deflection cavity is formed between the other end and the second inspection door. A sewage deflection cavity is formed between one end of the other heat exchange plate component and the first inspection door, and the other end is in contact with the second inspection door. The two adjacent sewage heat exchange channels are connected through the sewage deflection cavity.

3. The sewage heat exchanger according to claim 1, characterized in that: Both sides of the sewage heat exchange channel are provided with spacers for packaging, and the two ends of the spacers are respectively connected to the two ends of the shell.

4. The sewage heat exchanger according to claim 1, characterized in that: The sewage heat exchanger also includes: A first clean water linkage box, wherein a plurality of first clean water baffle chambers are sequentially arranged inside the first clean water linkage box from top to bottom, and the first clean water linkage box is arranged on one side of the housing and is arranged near the first inspection door; A second clean water linkage box, wherein a plurality of second clean water baffle chambers are sequentially arranged inside the second clean water linkage box from top to bottom, and the second clean water linkage box is arranged on the other side of the housing and is arranged near the second inspection door; Baffles are provided on both sides of the heat exchange plate component, and the baffles on both sides are respectively close to the two ends of the heat exchange plate component. The interior of each of the first clean water baffle chambers is connected with the multiple baffles on one side, and the interior of each of the second clean water baffle chambers is connected with the multiple baffles on the other side.

5. A sewage heat exchanger according to claim 4, characterized in that: The sewage heat exchanger also includes a clean water inlet, a clean water outlet, a sewage inlet and a sewage outlet. The clean water inlet and the clean water outlet are respectively arranged at two ends of the first clean water linkage box, and the sewage inlet and the sewage outlet are respectively arranged on the shell.

6. The sewage heat exchanger according to claim 1, characterized in that: The heat exchange plate component comprises two heat exchange plates, the circumferential sides of the two heat exchange plates are connected to each other, and a clean water heat exchange channel is formed between the two heat exchange plates.

7. A sewage heat exchanger according to claim 6, characterized in that: The heat exchange plate is a stainless steel plate, and a plurality of concave points are arranged on the heat exchange plate. The concave points opposite to each other on two heat exchange plates are symmetrically contacted and connected by spot welding.

8. The sewage heat exchanger according to claim 1, characterized in that: The sewage heat exchanger also includes a support base plate and at least two supports, at least two of the supports are connected to the bottom of the support base plate, and the support base plate is arranged at the bottom of the shell.

9. The sewage heat exchanger according to claim 8, characterized in that: The sewage heat exchanger also includes a support top plate and at least four hanging rings, wherein the at least four hanging rings are connected to the top of the support top plate, and the support top plate is arranged on the top of the shell.

10. The sewage heat exchanger according to claim 9, characterized in that: The sewage heat exchanger also includes a plurality of tie bars, a portion of which is arranged on one side of the shell, and another portion of which is arranged on the other side of the shell, and two ends of the tie bars are respectively connected to the support bottom plate and the support top plate.

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